This application claims priority to Chinese Patent Application No. 200620066768.X, filed on Oct. 25, 2006, and Chinese Patent Application No. 200620066769.4, filed on Oct. 25, 2006, the disclosures of which are expressly incorporated by reference herein.
The present utility model relates to a faucet, particularly to a pull-out type faucet spray gun arrangement.
Conventional faucets are disposed as being fixed and comprise a faucet body, one or more flow control/mixing valves and one or more control handles. In this case, the discharge of water is activated at a fixed point, or the faucet is rotated in a predetermined horizontal range to discharge water. To facilitate flexible use of a faucet, a pull-out type faucet spray gun has been developed, wherein a hose is connected to an outlet pipe of a fixed faucet for connection to a faucet spray gun so that the faucet can be flexibly used in a relatively large range.
However, the faucet spray guns in the present market often only have a single waterway to discharge water. As such, the press switch or trigger only functions to control the amount of water flow, and cannot function to control water-out states of the faucet, such as shift to sprinkler style (spray) or bubble style (aerated stream).
According to an illustrative faucet spray gun arrangement of the present disclosure, a shift between two outlet waterways can be realized by means of an activation press handle or trigger to assist a nozzle in realizing selection among a plurality of water-out states.
According to one illustrative embodiment, a faucet spray gun arrangement comprises a spray gun body, a spray gun press handle, a spray gun inner core tube and a control means or assembly, the spray gun press handle being movably fixed on the spray gun body, the spray gun inner core tube being disposed in the spray gun body, and the control assembly engaging with the spray gun inner core tube and the spray gun press handle, wherein two outlet waterways are provided in the spray gun inner core tube, and the control assembly is provided with a movable central pin controlling and shifting the two outlet waterways of the spray gun inner core tube respectively.
A receiving chamber is provided in the spray gun body to receive the spray gun inner core tube, and is connected at its lower end to a water inlet tube and at its upper end to an outlet nozzle. An open area is provided in a front portion of the spray gun body to receive the spray gun press handle.
The spray gun inner core tube is fixed in the spray gun body via an anti-release snap ring.
The spray gun press handle is shaped in response to the position of the open area of the spray gun body and provided at its upper end with a lug outside of which a limiting face is formed. The lug is embedded in the upper end of the open area of the spray gun body.
The spray gun press handle is formed at its lower end with an end face on which a recess is disposed.
The spray gun press handle is formed at its lower end with an end face on which an inner side a limiting snap hook is provided.
The spray gun inner core tube includes a lower core tube and an upper core tube. A water inlet port is provided at the lower portion of the lower core tube, and an accommodating seat and a water outlet pipeline are formed in the upper portion thereof. A water inlet port is provided in the side wall of the accommodating seat, and a sink cavity is formed in the middle portion of the lower core tube in the direction facing the spray gun press handle. The interior of the sink cavity is designed as a stepped configuration and the middle portion is communicated with the water outlet pipeline. A protruding post is formed at the bottom of the sink cavity. The upper core tube forms first and second outlet waterways. A stepped sink cavity is formed in the longitudinal direction of the lower portion of the upper core tube. In the middle portion at the left side of the sink cavity are provided a water inlet port communicated with the first outlet waterway and the above mentioned water inlet port; in the upper portion at the right side of the sink cavity is provided a water inlet port communicated with the second outlet waterway. Closely adjacent to the water inlet port and on the right side wall of the sink cavity is provided a water inlet port communicated with the water outlet pipeline of the lower core tube.
A protruding post or a groove is formed on the bottom of the sink cavity of the lower core tube; a protruding post or a groove is formed on the upper portion of the sink cavity of the upper core tube.
The control assembly comprises a switch means or assembly and a shift means or assembly.
The switch assembly comprises a switch central pin, a central pin guide sleeve and a return spring; a post body is formed at the front portion of the switch central pin and mates with an inner cavity surface of the central pin guide sleeve. An inverted tapered post is formed in the middle portion of the switch central pin and has an outer diameter greater than the inner cavity diameter of the central pin guide sleeve and less than the inner diameter of a middle inner cavity of the sink cavity. A cylindrical surface is formed at the rear portion of the switch central pin and mates with the inner wall surface of the bottom of the sink cavity. A side wall of the central pin guide sleeve is provided with a water inlet port; the central pin guide sleeve is fixed at the front end of the sink cavity and its water inlet port is positioned in alignment with a water outlet pipeline opening in the upper portion of the sink cavity. The rear end of the return spring is disposed around a protruding post on the bottom of the sink cavity or embedded in a groove on the bottom of the sink cavity, and the front end of the return spring abuts in a counterbore or on a protruding post formed at the rear end of the switch central pin.
An abutting head is disposed at the front end of the central pin, and an embedding groove is provided on the inner wall surface of the spray gun press handle corresponding to the abutting head.
The shift assembly comprises a shift central pin and a return spring; a tapered post is formed in the upper portion of the shift central pin and has an outer diameter greater than the inner cavity diameter of the upper portion of sink cavity and the inner cavity diameter of the accommodating seat of the lower core tube. A cylindrical body is formed in the lower portion of the shift central pin and accommodated in the accommodating seat of the lower core tube. The upper end of the return spring is disposed around the protruding post in the upper portion of the sink cavity or embedded in a groove in the upper portion of the sink cavity, and the lower end thereof abuts in a counterbore or protruding post formed in the upper end of the shift central pin.
One side of the lower portion of the shift central pin of the shift assembly engages with a shift lever lower portion, and the middle portion of the shift lever is embedded on the side wall of the lower core tube.
The control assembly is fixed on the spray gun inner core tube via a central pin snap ring.
According to an illustrative embodiment, the spray gun inner core tube in the faucet spray gun body is provided with the first and second outlet waterways, and the control assembly is activated by pressing the spray gun press handle to shift the water outlet ports of the two outlet waterways to realize entry of two waterways into the nozzle arrangement and realize adjustment of passive water-out states by cooperating with the two kinds of water-out configurations of the nozzle, thereby fulfilling the function of making adjustments depending on a desired amount of water to be needed. Furthermore, the control assembly totally depends on the amount of the strokes of the spray gun press handle to realize shifting so that a single hand can operate the spray gun to achieve an effect of convenient control and operation.
Additional features and advantages of the present invention will become apparent to those skilled in the art upon consideration of the following detailed description of the illustrative embodiment exemplifying the best mode of carrying out the invention as presently perceived.
The detailed description of the drawings particularly refers to the accompanying figures in which:
The embodiments of the invention described herein are not intended to be exhaustive or to limit the invention to precise forms disclosed. Rather, the embodiment selected for description have been chosen to enable one skilled in the art to practice the invention.
Referring initially to
As shown in
A receiving chamber 11 is provided in the spray gun body 1 to receive the spray gun inner core tube 3, and is connected at its lower end to a water inlet tube and at its upper end to a water outlet nozzle. An open area 12 is provided in a front portion of the spray gun body 1 to receive the spray gun press handle 2 such that the handle 2 may be pressed by the fingers of a user holding the body 1.
The spray gun press handle 2 is shaped in response to the position of the open area 12 of the spray gun body and provided at its upper end with a lug 21 outside of which a limiting face 22 is formed. The lug 21 is embedded in the upper end of the open area 12 of the spray gun body so that the lower portion of the spray gun press handle 2 can move forward and backward at the fixing point of the lug 21. The spray gun press handle 2 is provided at its lower end with an end face 23 on which a recess 231 is disposed.
A water inlet port 31 is provided at the lower portion of the spray gun inner core tube 3, and lower and upper sink cavities 32, 33 are formed above the water inlet port 31 and in the direction facing towards the spray gun press handle 2. The interior of the two sink cavities 32, 33 are designed as a stepped configuration and side walls of the two sink cavities 32, 33 are provided with a water passageway. Two protruding posts 321, 331 (or two grooves) are formed at the bottom of the two sink cavities 32, 33. First and second outlet waterways 34, 35 are formed on the upper portion of the spray gun inner core tube 3 and respectively communicate with a middle portion and a rear portion of the sink cavity 33.
The control means A comprises switch means or assembly 5 and shift means or assembly 6.
The switch means 5 comprises a switch central pin 51, a central pin guide sleeve 52 and a return spring 53; an abutting head 511 is disposed at the front end of the switch central pin 51, and a post body 512 is formed at the rear portion of the abutting head 511 and mates with an inner cavity surface of the central pin guide sleeve 52. An inverted tapered post 513 is formed in the middle portion of the switch central pin 51 and has an outer diameter greater than the inner cavity diameter of the central pin guide sleeve 52 and less than the inner diameter of a middle inner cavity of the sink cavity 32. A cylindrical surface 514 is formed at the rear portion of the switch central pin 51 and mates with the inner wall surface of the bottom of the sink cavity 32. A side wall of the central pin guide sleeve 52 is provided with a water inlet port 521; the central pin guide sleeve 52 is fixed at the front end of the sink cavity 32 and its water inlet port 521 is positioned in alignment with a waterway port in the upper portion of the sink cavity 32. The rear end of the return spring 53 is disposed around the protruding post 321 of the bottom of the sink cavity 32 (or embedded in the groove), and the front end of the return spring 53 abuts in a counterbore 515 (or protruding post) formed at the rear end of the switch central pin 51.
The shift means 6 comprises a shift central pin 61, a central pin guide sleeve 62 and a return spring 63; a cylindrical body 611 is formed in the front portion of the shift central pin 61, and a positioning depression 612 is provided in the front end face of the cylindrical body 611. The cylindrical body 611 is adapted to cooperate with an inner cavity surface of the central pin guide sleeve 62. An inverted tapered post 613 is formed in the rear portion of the shift central pin 61 and has an outer diameter greater than the inner cavity diameter of the central pin guide sleeve 62 and the inner diameter of the cavity on the bottom of the sink cavity 33. A side wall of the central pin guide sleeve 62 is provided with a water inlet port 621 which is located in alignment with a waterway port in the upper portion of the sink cavity 33 communicating with outlet waterway 34. The rear end of the return spring 63 is disposed around the protruding post 331 of the bottom of the sink cavity 33 (or embedded in the groove), and the front end of the return spring 63 abuts in a counterbore 614 (or protruding post) formed at the rear end of the shift central pin 61.
As shown in
As shown in
As shown in
Referring to
As shown in
A receiving chamber 11 is provided in the spray gun body 1 to receive the spray gun inner core tube 3, and is connected at its lower end to a water inlet tube and at its upper end to a water outlet nozzle. An open area 12 is provided in a front portion of the spray gun body 1 to receive the spray gun press handle such that the handle 2 may be pressed by the fingers of a user holding the body 1.
The spray gun press handle 2 is shaped in response to the position of the open area 12 of the spray gun body and provided at its upper end with a lug 21 outside of which a limiting face 22 is formed. The lug 21 is embedded in the upper end of the open area 12 of the spray gun body so that the lower portion of the spray gun press handle 2 can move forward and backward at the fixing point of the lug 21. The spray gun press handle 2 is provided at its lower end with an end face 23 on which a recess 231 is disposed.
The spray gun inner core tube 3 includes a lower core tube 3A and an upper core tube 3B which can be separately formed or integrally formed. A water inlet port 31 is provided at the lower portion of the lower core tube 3A, a left water outlet port 3A1 and a right water outlet port 3A2 are provided in the upper portion of the lower core tube 3A and are respectively connected to the upper core tube 3B having first and second outlet waterways 34, 35. A sink cavity 36 is formed in the direction where the lower core tube 3A faces towards the spray gun press handle 2. The interior of the sink cavity 36 is designed as a stepped configuration and provided with two channels communicating with the water outlet ports 3A1, 3A2 at the middle portion and the bottom portion. Besides, a protruding post 361 (or groove) is formed on the bottom of the sink cavity 36.
Control means A comprises a central pin 71, front and rear central pin guide sleeves 72, 72′ and a return spring 73. An abutting head 711 is disposed at the front end of the central pin 71, and a post body 712 is formed at the rear portion of the abutting head 711 and mates with an inner cavity surface of the front central pin guide sleeve 72. An inverted tapered post 713 is formed in the middle portion of the central pin 71 and has an outer diameter greater than the inner cavity diameter of the front central pin guide sleeve 72 and the inner cavity diameter of the rear central pin guide sleeve 72′. A cylindrical body 714 is formed at the rear portion of the central pin 71 and mates with the inner cavity surface of the rear central pin guide sleeve 72′. A side wall of the front central pin guide sleeve 72 is provided with a water inlet port 721 which is positioned in alignment with a waterway port in the middle portion of the sink cavity 36 communicating with the right water outlet port 3A2. The rear central pin guide sleeve 72′ is provided at its side wall with a water inlet port 721′ communicated with the water inlet port 31 disposed in the lower portion of the lower core tube 3A; the inner cavity of the rear central pin guide sleeve 72′ can communicate with the left water outlet port 3A1. The two central pin guide sleeves 72, 72′ are respectively fixed at the front end and the middle-rear portion of the sink cavity 36 and fixed together with one around the other. The rear end of the return spring 73 is disposed around the protruding post 361 of the bottom of the sink cavity 36 (or embedded in the groove), and the front end of the return spring abuts in a counterbore 715 (or protruding post) formed at the rear end of the central pin 71.
As shown in
As shown in
As shown in
Referring to
As shown in
A receiving chamber 11 is provided in the spray gun body 1 to receive the spray gun inner core tube 3, and is connected at its lower end to a water inlet tube and at its upper end to a water outlet nozzle. An open area 12 is provided in a front portion of the spray gun body 1 to receive the spray gun press handle such that the handle 2 may be pressed by the fingers of a user holding the body 1.
The spray gun press handle 2 is shaped in response to the position of the open area 12 of the spray gun body and provided at its upper end with a lug 21 outside of which a limiting face 22 is formed. The lug 21 is embedded in the upper end of the open area 12 of the spray gun body so that the lower portion of the spray gun press handle 2 can move forward and backward at the fixing point of the lug 21. The spray gun press handle 2 is provided at its lower end with an end face 23 on which inner side a snap hook 232 is disposed.
The spray gun inner core tube 3 includes a lower core tube 3A and an upper core tube 3B. A water inlet port 31 is provided at the lower portion of the lower core tube 3A, and an accommodating seat 3A3 and a water outlet pipeline 3A4 are formed in the upper portion thereof. A water inlet port 3A31 is provided in the side wall of the accommodating seat 3A3, and a sink cavity 37 is formed in the middle portion of the lower core tube 3A in the direction facing the spray gun press handle 2. The interior of the sink cavity 37 is designed as a stepped configuration and the middle portion is communicated with the water outlet pipeline. A protruding post 371 (or groove) is formed at the bottom of the sink cavity 37. Two outlet waterways 34, 35 are formed in the upper core tube 3B and a stepped sink cavity 38 is formed in the longitudinal direction of the lower portion of the upper core tube 3B. In the middle portion at the left side of the sink cavity 38 are provided a water inlet port 384 communicated with the outlet waterway 34 and the above mentioned water inlet port 3A31; in the upper portion at the right side of the sink cavity 38 is provided a water inlet port 382 communicated with the outlet waterway 35. Closely adjacent to the water inlet port 382 and on the right side wall of the sink cavity 38 is provided a water inlet port 383 communicated with the water outlet pipeline 3A4 of the lower core tube 3A. In addition, a protruding post 381 (or groove) is formed in the upper portion of the sink cavity 38.
The control means A comprises switch means or assembly 5 and shift means or assembly 6. As shown in
The switch means 5 comprises a switch central pin 51, a central pin guide sleeve 52 and a return spring 53; an abutting head 511 is disposed at the front end of the switch central pin 51, and a post body 512 is formed at the rear portion of the abutting head 511 and mates with an inner cavity surface of the central pin guide sleeve 52. An inverted tapered post 513 is formed in the middle portion of the switch central pin 51 and has an outer diameter greater than the inner cavity diameter of the central pin guide sleeve 52 and less than the inner diameter of a middle inner cavity of the sink cavity 37. A cylindrical surface 514 is formed at the rear portion of the switch central pin 51 and mates with the inner wall surface of the bottom of the sink cavity 37. A side wall of the central pin guide sleeve 52 is provided with a water inlet port 521; the central pin guide sleeve 52 is fixed at the front end of the sink cavity 37 and its water inlet port 521 is positioned in alignment with the water outlet pipeline port in the upper portion of the sink cavity 37. The rear end of the return spring 53 is disposed around the protruding post 371 of the bottom of the sink cavity 37, and the front end of the return spring 53 abuts in a counterbore 515 formed at the rear end of the switch central pin 51.
The shift means 6 comprises a shift central pin 61 and a return spring 63; a tapered post 614 is formed in the upper portion of the shift central pin 61 and has an outer diameter greater than the inner cavity diameter of the upper portion of sink cavity 38 and the inner cavity diameter of the accommodating seat 3A3 of the lower core tube 3A. A cylindrical body 615 is formed in the lower portion of the shift central pin 61 and accommodated in the accommodating seat 3A3 of the lower core tube 3A. The upper end of the return spring 63 is disposed around the protruding post 381 (or embedded in the groove) in the upper portion of the sink cavity 38, and the lower end thereof abuts in a counterbore 616 (or on a protruding post) formed in the upper end of the shift central pin 61.
As shown in
Referring to
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As shown in
Referring to
Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the spirit and scope of the invention as described and defined in the following claims.
Number | Date | Country | Kind |
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2006 2 0066767 U | Oct 2006 | CN | national |
2006 2 0066768 U | Oct 2006 | CN | national |
2006 2 0066769 U | Oct 2006 | CN | national |
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