DESCRIPTION OF FIGURES
FIG. 1 Exploded 3-D schematic view of one embodiment 1 of a liquid dispenser;
FIG. 2 Structural schematic view of embodiment 1 at the opening state of liquid output passage;
FIG. 3 Enlarged partial view of FIG. 2;
FIG. 4 Structural schematic view of embodiment 1 at the closing state of liquid output passage;
FIG. 5 Enlarged partial view of FIG. 4;
FIG. 6 Structural schematic view of embodiment 1 at non-operating state under normal circumstances;
FIG. 7 Enlarged partial view of FIG. 6;
FIG. 8 Exploded enlarged schematic view of one embodiment of a valve plate I;
FIG. 9 Outline schematic view of embodiment 1;
FIG. 10 Exploded 3-D schematic view of another embodiment 2 of a liquid dispenser;
FIG. 11 Exploded enlarged schematic view of one embodiment of a valve plate II;
FIG. 12 Structural schematic view of embodiment 2;
FIG. 13 Exploded 3-D schematic view of another embodiment 3 of a liquid dispenser;
FIG. 14 Structural schematic view of embodiment 3;
FIG. 15 Outline schematic view of embodiment 3;
FIG. 16 Exploded 3-D schematic view of yet another embodiment 4 of a liquid dispenser;
FIG. 17 Structural schematic view of embodiment 4;
FIG. 18 Schematic view of one embodiment of a main body of embodiment 4;
FIG. 19 Outline schematic view of embodiment 4;
DETAILED EMBODIMENTS
The following will give further detailed description for the liquid dispenser through the embodiments together with the attached drawings.
Embodiment 1
Please refer to FIG. 1, this novel liquid dispenser mainly includes cover 2, main body 9 and liquid output device comprising button 8, water-sealing ring 6 and spring 4, and valve plate 5 with the effect of a 2-in-1 one-way valve, etc., wherein:
Cover 2 engages with the opening of the container and in the cover 2 there is a padding piece 1 to ensure it is sealed with the container. On the top of the cover 2 there is a circular tube 21 for connecting to the main body. On the circular tube 21 there is an annular slot 22 for embedding O-shaped sealing ring and an annular flange 23 buckled with the main body.
The main body 9 is hollow. The inner wall of the lower part of the main body is rotationally engaged with the outer wall of the circular tube 21 of the cover and on the inner wall of the main body 9. There is an annular slot that can connect the main body 9 to the circular tube 21, such as by being buckled with the annular flange 23 of the cover. Said main body 9 is rotationally connected to the cover 2 after its annular slot buckles with the annular flange of the cover 2 and the sealing between them is ensured by means of the O-shaped sealing ring 3 embedded on the circular tube 21. And after having the main body 9 connected to the cover 2, its hollow chamber is in communication with the inner chamber of the cover. In addition, on the top of the main body 9 there is a liquid outlet 91 from which the liquid is discharged. On the outer wall of the main body there is annular embedded slot 92 for embedding the button, and a small opening 93 is arranged at the outer wall of the main body in the area of the annular embedded slot.
The button 8 is arranged on the main body 9 with its outer edge embedded in the embedded slot 92 of the outer wall of said main body and positioned by the buckle ring 7 to be embedded in the embedded slot.
The water-sealing ring 6 is arranged inside the main body 9, positioned on the inner wall which is located at the front part of the opening and the outer wall of the water-sealing ring and the inner wall of the main body are sealingly engaged. The hollow chamber of said main body 9 is divided into front part and rear part by the water-sealing ring 6. The appearance of the water-sealing ring is a circular ring with an axial opening 61 at the center thereof and its bottom end is an opening in shape of a conical horn.
The construction of the valve plate 5 is shown in FIG. 8. It has the function of one-way valve. The upper part of the valve plate 5 is a cylindrical body 51 which is slidingly inserted into the axial opening 61 of the water sealing ring and a plurality of axial slots 52 are arranged on its outer wall for liquid to pass through the slots 52. The lower part of the valve plate 5 is a hollow cylindrical cover-shaped body 54 with an increasing outer radius. Th e edge part of its top surface is a fillet 53 which can sealingly engage with the slant surface 62 of the conical horn opening of the water-sealing ring. The bottom part of the cover-shaped body is outwardly extended in form of a plate-like annular plane 55 which can sealingly engage with the opening 24 of the cover 2. The valve plate 5 is constructed of a material with high elasticity. The plate-like annular plane 55 at the peripheral can contract radially. A spring 4 is arranged at the rear of the valve 5. One end of this spring is against the valve plate 5, the other end covers the positioning shaft of the cover 2. Said opening 93 on the side wall of said main body 9 is positioned between the water-sealing ring 6 and the valve plate 5.
This liquid dispenser is installed on a mated container. In operation, the button 8 can be pressed by hand to produce compressed liquid. When the pressure N1 of the compressed liquid becomes larger than the elastic force N2 of the spring 4 behind the valve plate 5, the valve plate 5 is separated from the joint with the water-sealing ring 6 and the compressed liquid generated will flows out of the liquid outlet 91 through the water-sealing ring, as shown in FIG. 2, FIG. 3; The pressure N of the liquid applied on the valve plate 5 (the pressure difference between the pressure N1 of the compressed liquid and the pressure N3 discharged with liquid through the water-sealing ring) overcomes the elastic force of the spring 4 in the end. When this pressure is less than the elastic force, the spring 4 again makes the valve plate 5 restore to its original position and simultaneously seal with the water-sealing ring; When the button 8 is restored, the suction force N4 produced by restoration of the button 8 makes the valve plate 5 radially contract (its suction force is larger than the elastic deformation force N5 of the valve plate 5). In the meantime the liquid at the rear of the valve plate 5 is sucked, as shown in FIG. 4, FIG. 5, when the button is restored, the liquid will fill between the valve plate 5 and the water sealing ring 6. The valve plate 5 will restore as it is no longer subject to the action of the suction force N4, as shown in FIG. 6, FIG. 7. The whole dispenser then enters next operating cycle.
Embodiment 2
The liquid dispenser as shown in FIG. 10-FIG. 12, the construction of liquid output device and valve adopted by this embodiment 2 is different from embodiment 1. The liquid output device in this embodiment is composed of button 8, piston 11, water-sealing ring 6 and spring 4, etc. The valve plate 5 also has the function of one-way valve. Its main body is also made into a plate-like shape to match with main body 9. Specifically, the valve plate 5 comprises a circular tube 56 for configuring with piston 11. The outward extension of the circular tube 56 is equipped with a plate-like annular plane 57 which can sealingly engage with the opening 24 of the cover 2. The valve plate 5 is assembled with the piston 11. The piston 11 is coupled through the valve plate 5. The valve plate 5 can close or open the opening 24 of the circular tube 21 of the cover 2. The piston 11 is a component which has a cross-like cross-section area, its upper part is inserted in the opening of the water-sealing ring 6. A plurality of axial slots 111 are arranged on its outer wall for the liquid to pass through the slots 111. An O-shaped sealing ring 10 is arranged between the water sealing ring 6 and the piston 11, being configured with the piston 11 and moving together with the piston 11. The tail part of the piston 11 is slidably inserted into the axial opening of the cover 2. A spring 4 is covered on the piston supporting the bottom of the valve plate 5. The opening 93 on the side wall of the main body 9 is also located between the water-sealing ring 6 and the valve plate 5. Said water-sealing ring is a circular ring.
The operating principle of the liquid dispenser of this embodiment is as follows: During use, press the button 8 by hand to produce compressed liquid. When the pressure of the compressed liquid becomes larger than the elastic force of the spring 4 behind the valve plate 5, it moves the valve plate 5 backward, simultaneously carrying the piston 11 and the O-shaped sealing ring 10 on the piston so as to make it separated from the joint part with the water-sealing ring 6. The compressed liquid generated flows out of the liquid outlet 91 through the water-sealing ring 6. The pressure difference between the pressure applied by the liquid on the valve plate 5 and the pressure discharged with the liquid through the water-sealing 6, it overcomes the elastic force of the spring 4 in the end. When this pressure is less than the elastic force of the spring 4, the spring 4 again promotes the restoration of the piston 11, O-shaped ring 10, valve plate 5 and simultaneously seals with the water sealing ring 6. When the button 8 is restored, the suction force produced by the restoration of the button 8 makes the valve plate 5 radially contracts (its suction force is larger than the elastic deformation force of the valve ). In the meantime the liquid at the rear of the valve plate 5 is sucked so that when the button 8 is restored, the liquid will fill between the valve plate 5 and the water sealing ring 6. The valve plate 5 will restore as it is no longer subject to the action of the suction. The whole dispenser then enters next operation cycle.
Embodiment 3
This embodiment is modified on the basis of the embodiment 1. By modifying the structure of the valve plate and performing certain adaptive changes to the cover and the main body, the spring and the inner side of the valve plate can be kept out of reach of the liquid when the dispenser is discharging liquid. This can not only increase the flexibility of the product operation but also ensure the liquid quality is not affected and it is also good in terms of safety.
Specifically, as shown in FIG. 13-FIG. 15, the valve plate 5 as shown in the drawings of this embodiment is made on the basis of the valve plate in the embodiment 1 and further extend upward and downward from its upper part and lower part respectively a circular tube 58, 59, and a chamber 94 is formed in the main body 9 and receivable of the upper circular tube 58. A n opening 95 is arranged at the top part of the chamber. The upper circular tube 58 is inserted in the chamber 94 and its outer wall sealingly engages with the inner wall of the chamber 94. The upper part of said cover 2 comprises not only the circular tube 21 used for connecting to the main body but also an inner circular tube 25 with a closed bottom inside the cover 2. Orifices 26 are arranged on the annular bottom surface which is connected with the bottom of the inner circular tube 25. The lower circular tube 59 of said valve plate 5 covers on the inner circular tube 25 of the cover 2 and its inner wall sealingly engages with the outer wall of the inner circular tube 25. Thus, the spring 4 biases against the rear of the valve plate 5 and is positioned in the chamber of the main body 9, and is surrounded by the inner circular tube 25 of the cover 2, the valve plate 5 and the main body 9. The working gas at the ambience of the spring 4 is exhausted through the top part of the chamber 94 and the opening 95 at the top part of the valve plate 5. Then, the liquid passes through the orifices 26 of the cover 2 without touching the ring 4.
Embodiment 4
This embodiment is the modification on the basis of the embodiment 2. It realizes liquid discharge in form of foam for the dispenser mainly by means of changing the shape of the water-sealing ring.
Specifically, as shown in FIG. 16-19, the water-sealing ring 6 in the figures has a circular tube 64, and the circular tube comprises an upper section of reducing radius and on its top part, a depression 65 and two slots 66 which is in communication with the axial opening of the circular tube 64. The liquid enters the depression 65 through the slots 66, and a circular annular plane 63 is formed at the outward extension of the bottom of the circular tube 64. In order to receive the water-sealing ring 6, the shape of the main body 9 is also modified in comparison with the embodiment 2, its center part is designed as a circular tube. The circular annular plane 63 of the lower part of the water-sealing ring sealingly engages with the inner wall of the circular tube of the main body 9. In the opening of the main body 9 there is a partition plate 96, below which there is a cylindrical chamber 100 for receiving the upper section of the water sealing ring 6. The upper section of the water-sealing ring 6 is inserted into the cylindrical chamber 100 and they are sealingly engaged. Said water-sealing ring 6 is positioned between the piston 11 and the partition plate 96 of the main body. There is an orifice 97 to make high-pressure liquid to inject spirally so as to form a water column in mist form. There are four small square holes 99 between the partition plate and the main body wall. At one side of the opening, there is a long slot 98 in communication with the inner chamber of the main body 9. The long slot 98 can mix the products with air throughout the inner chamber when in operation. Additionally, a stainless steel mesh piece 13 is arranged at the opening of the main body. The mesh piece 13 is welded on the locking slot 12. The locking slot is fixed at the opening of the main body by means of the bands at its edge and on the main body. The mesh piece 13 serves the function of rubbing the water column in mist form with air mixed inside against the mesh piece so as to form a foam-like ejection.
Patent Application
20080029547
