Patent Application
20250027493
The present application relates to the technical field of water pumps, in particular to a pump body assembly and a booster energy-saving water pump with the same.
A pump is a machine that transports or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspoemulsion and liquid metal. With the improvement of human living standards in recent years, people pay more attention to oral hygiene and health. Tooth cleaner, a product with high-pressure water flow, came into being. It mainly uses the strong jet force of water flow to wash away the food residue between the teeth.
The pump body structure of the water pump of the existing tooth cleaner is mainly made of soft rubber, and is provided with a liquid inlet and a liquid outlet correspondingly, and a one-way valve for controlling the water flow in and out is provided at the liquid inlet. The one-way valve cooperates with the contraction and expansion of the pump body to play the role of closing and opening. When it is opened, water enters the pump body through the one-way valve, and when it is closed, the one-way valve prevents water from flowing into the pump body, so that the pump body shrinks and the water originally in the pump body is ejected from the liquid outlet.
However, since the existing pump body is soft, and the one-way valve is made of hard material, the one-way valve cannot be deformed together with the pump body during the contraction and expansion process of the pump body. This leads to the situation that gaps are likely to appear at the joint between the pump body and the one-way valve, which affects the sealing performance in the pump body, and causes the pump body to fail to cause spraying or suction water flow, making the pump body unable to use normally.
The purpose of the present application is to provide a pump body assembly and a booster energy-saving water pump with the same, which can improve the sealing performance of the pump body when it expands or contracts, thereby increasing the service life of the pump body.
The technical solution adopted by a pump body assembly and the booster energy-saving water pump with the same according to the present application are:
A pump body assembly comprises a pump body made of soft rubber, wherein a liquid inlet cavity is arranged inside the pump body, and a liquid inlet and a liquid outlet are arranged on a surface of the pump body, the liquid inlet and the liquid outlet are connected with the liquid inlet cavity, and the liquid outlet is arranged on top of the pump body, the liquid outlet is provided with a switch valve comprising two flaps, the two flaps are arranged opposite to each other, and the flaps are fixedly connected to the pump body on a side away from each other, and the sides of the valve close to each other are in contact and closed, the switch valve protrudes toward outside of the pump body, and the liquid inlet is located on a side of the pump body, the corresponding liquid inlet is provided with a water inlet connecting seat, and a one-way valve group made of flexible material is arranged between the water inlet connecting seat and the liquid inlet, the one-way valve group is fixedly connected with the pump body, and the one-way valve group is closed with a contraction of the pump body and is opened with an expansion of the pump body.
As a preferred solution, the one-way valve group comprises a flexible sheet, and an n-shaped through groove is formed on surface of the flexible sheet, the flexible sheet is divided into a shielding area and a fixed area by the through groove, the shielding area is arranged relative to an end of the water inlet connecting seat inserted into the liquid inlet, and the fixed area is fixedly clamped at the liquid inlet by the water inlet connecting seat, the through groove is arranged on a side wall of the water inlet connecting seat.
As a preferred solution, the one-way valve group comprises a duckbill valve, one end of the duckbill valve is arranged between the water inlet connecting seat and the liquid inlet, and the duckbill valve is arranged toward inside of the liquid inlet cavity.
As a preferred solution, the one-way valve group comprises a stop sheet and a fixing sheet, and the fixing sheet is fixed between the water inlet connecting seat and the liquid inlet, a surface of the fixing sheet is provided with a sliding hole and liquid inlet holes, and the sliding hole is arranged in the center of the fixing sheet and the liquid inlet holes are arranged around the sliding hole, the stop sheet is made of flexible material, and the stop sheet is arranged on a side of the fixing sheet close to the liquid inlet hole, the stop sheet covers a side of the liquid inlet holes, and a middle part of the stop sheet is provided with a fixing rod, the fixing rod extends through the sliding hole to the other side of the fixing sheet.
As a preferred solution, the pump body comprises an upper pump body and a lower pump body, the upper pump body and the lower pump body are connected in a sealed manner, the liquid inlet is arranged on a side of the lower pump body, and the liquid outlet is arranged above the upper pump body.
As a preferred solution, a hard rubber inner support is arranged between the upper pump body and the lower pump body, the hard rubber inner support comprises a partition and a sleeve, the sleeve is arranged below the partition, and the sleeve is attached to an inner wall of the lower pump, a surface of the sleeve is provided with a first through hole corresponding to a water inlet, and the partition is provided with a second through hole corresponding to a water outlet, a surface of the upper pump body is sleeved on a hard rubber outer support, and the hard rubber outer support, the upper pump body, the hard rubber inner support and the lower pump body are detachably connected to the housing by screws.
As a preferred solution, the sides of the upper pump body and the lower pump body close to each other are respectively provided with lips, and the sides of the liquid outlet and the liquid inlet of the upper pump body and the lower pump body are respectively provided with lips.
A booster energy-saving water pump comprises a housing, the above-mentioned pump body assembly and a push-pull device, the pump body assembly and the push-pull device are arranged inside the housing, the push-pull device is arranged under the pump body assembly and drives the pump body assembly to be pulled down, the pump body assembly comprises a pump body made of soft rubber, a liquid inlet cavity is arranged inside the pump body, and a liquid inlet and a liquid outlet are arranged on a surface of the pump body, the liquid inlet and the liquid outlet are connected with the liquid inlet cavity, and the liquid outlet is arranged on top of the pump body, the liquid outlet is provided with a switch valve comprising two flaps, the two flaps are arranged opposite to each other, and the flaps are fixedly connected to the pump body on a side away from each other, and the sides of the valve close to each other are in contact and closed, the switch valve protrudes toward outside of the pump body, and the liquid inlet is located on a side of the pump body, the corresponding liquid inlet is provided with a water inlet connecting seat, and a one-way valve group made of flexible material is arranged between the water inlet connecting seat and the liquid inlet. The one-way valve group is fixedly connected with the pump body, and the one-way valve group is closed with a contraction of the pump body and is opened with an expansion of the pump body.
As a preferred solution, the push-pull device comprises a rotating motor, an eccentric gear and a connecting rod, the eccentric gear is rotatably connected to the housing by a gear shaft, and one end of the connecting rod is rotatably connected to center of the eccentric gear, and the other end of the connecting rod is fixedly connected to a bottom of the pump body by a pin, the rotating motor is arranged under the eccentric gear, an output shaft of the rotating motor is provided with motor teeth, the motor teeth mesh with the eccentric gear, and the rotating motor is connected to the eccentric gear by the motor teeth.
As a preferred solution, a motor groove, a gear groove and a pump body groove are formed inside the housing, the rotating motor is arranged in the motor groove, the eccentric gear is arranged in the gear groove, and the pump body is arranged in the pump body groove.
The beneficial effects of a pump body assembly disclosed in the present application are: When in use, an existing driving device such as a motor or a push rod is arranged under the pump body made of soft rubber, and the pushing device can drive the bottom of the pump body to pull down or go up. During the pull-down process, the pump body is in an expanded state, while in the go-up process, the pump body is in a contracted state. When it needs to be used, the volume inside the pump body increases during the pull-down deformation process of the pump body, and the pump body forms a negative pressure, so that the one-way valve group is opened by suction. The switch valve of the water outlet protrudes toward the outside of the pump body, so that the soft rubber pump body prevents the two flaps of the water outlet from continuously maintaining contact during the pull-down process, so that water is sucked into the pump body through the water inlet. The push-pull device drives the soft rubber pump body to recover, so that the water remains in the cavity. Then use the push-pull device to lift the bottom of the pump body upwards to compress the volume of the pump body, so that the two flaps of the water outlet are stretched outwards to spray water, and the one-way valve group is also pushed outwards, so that the one-way valve group remains closed. By using the one-way valve group made of flexible material, the pump body and the one-way valve group can be deformed together, which avoids the gap between the one-way valve group and the pump body, so as to improve the sealing performance of the pump body when it expands or contracts, thereby improving the service life of the pump body, and the one-way valve group can be opened and closed following the expansion and contraction of the pump body, and plays a role in restricting the flow direction of the water.
Below in conjunction with specific embodiment and accompanying drawing, the present application is further elaborated and illustrated:
Please refer to
The liquid outlet 113 is provided with a switch valve 114 comprising two flaps, the two flaps are arranged opposite to each other, and the flaps are fixedly connected to the pump body 11 on a side away from each other, and the sides of the valve close to each other are in contact and closed, the switch valve 114 protrudes toward outside of the pump body 11, and the liquid inlet 112 is located on a side of the pump body 11, the corresponding liquid inlet 112 is provided with a water inlet connecting seat 12, and a one-way valve group 13 made of flexible material is arranged between the water inlet connecting seat 12 and the liquid inlet 112, the one-way valve group 13 is fixedly connected with the pump body 11, and the one-way valve group 13 is closed with a contraction of the pump body 11 and is opened with an expansion of the pump body 11.
When in use, an existing driving device such as a motor or a push rod is arranged under the pump body 11 made of soft rubber, and the pushing device can drive the bottom of the pump body 11 to pull down or go up. During the pull-down process, the pump body 11 is in an expanded state, while in the go-up process, the pump body 11 is in a contracted state. When it needs to be used, the volume inside the pump body 11 increases during the pull-down deformation process of the pump body 11, and the pump body 11 forms a negative pressure, so that the one-way valve group 13 is opened by suction. The switch valve 114 of the water outlet protrudes toward the outside of the pump body 11, so that the soft rubber pump body 111 prevents the two flaps of the water outlet from continuously maintaining contact during the pull-down process, so that water is sucked into the pump body 11 through the water inlet. The push-pull device 30 drives the soft rubber pump body 11 to recover, so that the water remains in the cavity. Then use the push-pull device 30 to lift the bottom of the pump body 11 upwards to compress the volume of the pump body 11, so that the two flaps of the water outlet are stretched outwards to spray water, and the one-way valve group 13 is also pushed outwards, so that the one-way valve group 13 remains closed.
By using the one-way valve group 13 made of flexible material, the pump body 11 and the one-way valve group 13 can be deformed together, which avoids the gap between the one-way valve group 13 and the pump body 11, so as to improve the sealing performance of the pump body 11 when it expands or contracts, thereby improving the service life of the pump body 11, and the one-way valve group 13 can be opened and closed following the expansion and contraction of the pump body 11, and plays a role in restricting the flow direction of the water.
Please refer to
When the pump body 11 is in a normal state, the shielding area 1312 of the flexible sheet 131 is blocked on the side of the water inlet connecting seat 12 by itself. When the pump body 11 pulls down and expands, the volume of the pump body 11 increases due to deformation, which causes the pressure inside the pump body 11 to decrease, and a pressure difference appears between the pump body 11 and the water inlet connecting seat 12, so that the shielding area 1312 of the flexible sheet 131 swings toward the side of the liquid inlet cavity 111 under the action of the pressure difference, so that the water inlet connecting seat 12 communicates with the liquid inlet cavity 111. Conversely, when the pump body 11 is lifted upwards and contracts, the volume of the pump body 11 becomes smaller, thereby squeezing the shielding area 1312 toward the water inlet connecting seat 12 to ensure that the shielding area 1312 can block the water inlet connecting seat 12, so as to prevent water from flowing into the liquid inlet chamber 111, and achieve the purpose of closing.
Please refer to
In the same way as above, when the pump body 11 pulls down and expands, the volume increases and the pressure decreases, thereby causing water to flow into the liquid inlet cavity 111 from the duckbill valve 132; conversely, when the pump body 11 shrinks upward, the volume becomes smaller, and the pressure increases, so that the duckbill valve 132 remains closed to prevent water from flowing into the liquid inlet cavity 111 and achieve the purpose of closing.
Please refer to
In the same way as above, when the pump body 11 is pulled down and expanded, the volume increases and thus the pressure decreases. Since the stop sheet 133 is made of a flexible material, the stop sheet 133 swings towards the liquid inlet 112 under the action of the internal pressure of the pump body 11, thereby losing the function of blocking the liquid inlet holes 1342 on the fixing sheet 134, thereby allowing water to flow from the liquid inlet holes 1342 on the fixing sheet 134 into the liquid inlet 112. Conversely, when the pump body 11 shrinks upward, the volume becomes smaller, thereby increasing the pressure, and the stop sheet 133 is pressed against the side of the fixing sheet 134 to cover the liquid inlet holes 1342 on the fixing sheet 134, blocks the flow of water and acts as a one-way valve.
In the above-mentioned solution, the pump body 11 comprises an upper pump body 115 and a lower pump body 116, the upper pump body 115 and the lower pump body 116 are connected in a sealed manner, the liquid inlet 112 is arranged on a side of the lower pump body 116, and the liquid outlet 113 is arranged above the upper pump body 115. The pump body 11 adopts a split structure, which reduces the impact on the upper pump body 115 caused by the pull of the pump body 116 driven by the external push-pull device 30, thereby ensuring that water can be sucked into the pump body 11 smoothly.
Please refer to
Please refer to
When the pump body 11 is pushed up and pulled down, in order to prevent the pump body 11 from being pulled as a whole and cause the water in and out failures, a hard rubber inner support 14 is added inside the lower pump body 116, and a hard outer support is provided the surface of the upper pump body 115. The hard inner support is used to support the entire inner wall of the lower pump body 116, and the hard outer support is used to support the outer wall of the upper pump body 115. Thus, when the push-pull device 30 drives the lower pump body 116 to push up and pull down, the inner wall of the lower pump body 116 and the upper pump body 115 will not be deformed because of the hard rubber inner support 14 and the hard outer support. This keeps the water inlet and outlet in a steady state. When the upper pump body 115 and the lower pump body 116 are packaged, the upper pump body 115 and the lower pump body 116 are respectively sealed and connected through the partition 141 to improve the air tightness between the upper pump body 115 and the lower pump body 116. The first through hole 1421 and the second through hole 1411 also ensure that the water inlet and the water outlet are in communication with the inside of the pump body 11.
In the above-mentioned solution, the sides of the upper pump body 115 and the lower pump body 116 close to each other are respectively provided with lips 117, and the sides of the liquid outlet and the liquid inlet of the upper pump body 115 and the lower pump body 116 are respectively provided with lips 117. When the hard rubber outer support 15 is sleeved on the surface of the upper pump body 115, the hard rubber outer support 15 can be limited and fixed by the lips 117 on both sides of the upper pump body 115. The lower pump body 116 can also be fixed with the partition 141 of the hard rubber inner support 14 through the lips 117, so as to avoid the displacement of the hard rubber inner support 14.
Please refer to
The push-pull device 30 comprises a rotating motor 31, an eccentric gear 32 and a connecting rod 33, the eccentric gear 32 is rotatably connected to the housing 20 by a gear shaft 34, and one end of the connecting rod 33 is rotatably connected to center of the eccentric gear 32, and the other end of the connecting rod 33 is fixedly connected to a bottom of the pump body 11 by a pin 35, the rotating motor 31 is arranged under the eccentric gear 32, an output shaft of the rotating motor 31 is provided with motor teeth 36, the motor teeth 36 mesh with the eccentric gear 32, and the rotating motor is connected to the eccentric gear 32 by the motor teeth 36.
Through the rotation of the rotating motor 31, the motor teeth 36 are also driven to rotate together, and the eccentric gear 32 is also rotated through the mutual meshing of the motor teeth 36 and the eccentric gear 32, and the connecting rod 33 is driven by the eccentric gear 32 to carry out a reciprocating motion of pushing up and pulling down.
A motor groove 21, a gear groove 22 and a pump body groove 23 are formed inside the housing 20, the rotating motor 31 is arranged in the motor groove 21, the eccentric gear 32 is arranged in the gear groove 22, and the pump body 11 is arranged in the pump body groove 23. The motor groove 21, the gear groove 22 and the pump body groove 23 respectively limit and fix the parts inside the housing 20 to avoid displacement and reduce the difficulty of assembly.
Through the above-mentioned structure, it is only necessary to directly connect the pump body 11 and the push-pull device 30, and no auxiliary sealing devices such as other sealing rings are needed, thereby reducing the defect rate during assembly and avoiding water leakage, failure to fill water or low shooting power.
When using a pump body assembly provided according to the present application, an existing driving device such as a motor or a push rod is arranged under the pump body made of soft rubber, and the pushing device can drive the bottom of the pump body to pull down or go up. During the pull-down process, the pump body is in an expanded state, while in the go-up process, the pump body is in a contracted state. When it needs to be used, the volume inside the pump body increases during the pull-down deformation process of the pump body, and the pump body forms a negative pressure, so that the one-way valve group is opened by suction. The switch valve of the water outlet protrudes toward the outside of the pump body, so that the soft rubber pump body prevents the two flaps of the water outlet from continuously maintaining contact during the pull-down process, so that water is sucked into the pump body through the water inlet. The push-pull device drives the soft rubber pump body to recover, so that the water remains in the cavity. Then use the push-pull device to lift the bottom of the pump body upwards to compress the volume of the pump body, so that the two flaps of the water outlet are stretched outwards to spray water, and the one-way valve group is also pushed outwards, so that the one-way valve group remains closed. By using the one-way valve group made of flexible material, the pump body and the one-way valve group can be deformed together, which avoids the gap between the one-way valve group and the pump body, so as to improve the sealing performance of the pump body when it expands or contracts, thereby improving the service life of the pump body, and the one-way valve group can be opened and closed following the expansion and contraction of the pump body, and plays a role in restricting the flow direction of the water.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the protection scope of the present application.
Although the present application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present application.
