Spray gun
By staggering the first and second valve chambers of the design on the gun bracket, the problem of the impact of the dimensional accuracy of the existing gun during cooling and demolding is solved, and higher dimensional accuracy and structural simplicity are achieved.
Patent Information
- Application Number
- CN202323268814.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2033-11-30
AI Technical Summary
During the cooling and demolding process of existing straight-handled spray guns, due to the unreasonable design of the valve chamber, the materials are easily pulled from each other, affecting the dimensional accuracy, and have a great impact on the overall size of the bracket during demolding.
A spray gun is designed, and the first valve chamber and the second valve chamber are arranged along the length direction of the bracket, and the cavity mouths of the two valve chambers are staggered by 180 degrees in the circumferential direction of the bracket to avoid pulling each other and ensure dimensional accuracy.
Through the design of staggered valve chambers, the influence on dimensional accuracy during cooling and mold release is avoided, ensuring the simplification of the structure and overall dimensional accuracy of the spray gun.
Smart Images
Figure CN222817060U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bathroom products, in particular to a spray gun. Background Art
[0002] Spray guns generally achieve the purpose of flushing by controlling the interruption of water flow; their structures are divided into three categories, namely straight handle type, T-shaped or J-shaped. The bracket of the current straight handle spray gun is produced by injection molding. When there are two gears, the two valve chambers are often set on the same side of the outer wall of the spray gun. Therefore, during cooling, it is easy to cause mutual pulling between materials and affect the accuracy of the valve chamber. At the same time, during demolding, the force generated by the radial core pulling of the valve chamber acts on the same side. Therefore, the same-side design of the two valve chambers has a greater influence on the overall dimensional accuracy and deformation of the bracket. Utility Model Content
[0003] Based on the above problems, the utility model aims to provide a spray gun with simple structure, high dimensional accuracy, easy installation and dual-gear switching.
[0004] In view of the above problems, the following technical solutions are provided: a spray gun, comprising an injection-molded bracket, the bracket being provided with a first valve cavity and a second valve cavity arranged along the length direction thereof, and a water inlet interface being provided at the rear end of the bracket; a nozzle being installed at the front end of the bracket, the nozzle being provided with a first nozzle and a second nozzle, the first valve cavity being opened from 6 o'clock to 12 o'clock of the bracket cross section and being provided with a first valve core, the second valve cavity being opened from 12 o'clock to 6 o'clock of the bracket cross section and being provided with a second valve core; a water inlet channel connecting the water inlet interface, the first valve cavity and the second valve cavity is provided in the bracket; a first water outlet channel connecting the first nozzle and the first valve cavity and a second water outlet channel connecting the second nozzle and the second valve cavity are provided at the front end of the bracket; the first water outlet and the first valve cavity are connected and disconnected by a first valve core, the second water outlet and the second valve cavity are connected and disconnected by a second valve core, and the valve stems of the first valve core and the second valve core are both located at the 12 o'clock position of the bracket cross section.
[0005] In the above structure, the first valve cavity is opened from 6 o'clock to 12 o'clock of the bracket cross section, and the second valve cavity is opened from 12 o'clock to 6 o'clock of the bracket cross section, so that the cavity openings of the first valve cavity and the second valve cavity are staggered by 180 degrees in the circumferential direction of the bracket, so as to avoid the first valve cavity and the second valve cavity being pulled against each other when they are energy-contracted and affecting the dimensional accuracy, and reduce the impact on the overall size of the bracket during demoulding, so as to keep the structure simple while ensuring the overall dimensional accuracy; the water inlet is formed by core pulling toward the rear end of the bracket; the first water outlet and the second water outlet are formed by core pulling toward the front end of the bracket.
[0006] The utility model is further configured as follows: a first valve seat is provided at the bottom of the first valve cavity, a first water channel with an inner diameter smaller than the inner diameter of the first valve cavity is provided at the center of the first valve seat, a first sliding hole with an inner diameter smaller than the inner diameter of the first water channel is provided at the center of the first water channel, and a valve stem of the first valve core passes through the first sliding hole; the first water outlet is connected to the first water channel; a first blocking cover is provided at the mouth of the first valve cavity, and a first return spring is supported between the first blocking cover and the first valve core so that the first valve core and the first valve seat are abutted against each other to cut off the water flow between the first valve cavity and the first water channel; a second blocking cover is provided at the mouth of the second valve cavity, and one end of the second blocking cover faces the bottom of the second valve cavity A second valve seat is provided, a second water flow groove with an inner diameter smaller than that of the second valve cavity is provided at the center of the second valve seat, a second sliding hole with an inner diameter smaller than that of the second water flow groove is provided at the center of the second water flow groove, and a valve stem of the second valve core passes through the second sliding hole; two second sealing rings are provided on the outer wall of the second blocking cover, which are spaced apart from each other and sealed with the inner wall of the second valve cavity, a water guide groove connected with the second water flow groove is provided between the two second sealing rings, and the second water outlet is connected with the second water flow groove through the water guide groove; the second valve core and the bottom of the second valve cavity are supported by a second return spring so that the second valve core and the second valve seat are abutted against each other to cut off the water flow between the second valve cavity and the second water flow groove.
[0007] In the above structure, the first valve core is installed into the first valve cavity from 6 o'clock to 12 o'clock of the bracket and is sealed by the first plugging cover; the second valve core is installed into the second valve cavity from 12 o'clock to 6 o'clock of the bracket and is sealed by the second plugging cover, and the second sealing ring can prevent water from jumping.
[0008] The utility model is further configured such that the outer edge of the first blocking cover is provided with a first sealing ring which is sealed to cooperate with the inner wall of the first valve cavity.
[0009] In the above structure, the first sealing ring can prevent water from jumping in.
[0010] The utility model is further configured such that the valve stem of the first valve core is provided with a third sealing ring which is sealed with the first sliding hole; and the valve stem of the second valve core is provided with a fourth sealing ring which is sealed with the second sliding hole.
[0011] In the above structure, the third sealing ring can prevent water from jumping between the valve stem of the first valve core and the first sliding hole; the fourth sealing ring can prevent water from jumping between the valve stem of the second valve core and the second sliding hole.
[0012] The utility model is further configured such that the first valve core is provided with a fifth sealing ring which is sealed with the first valve seat; and the second valve core is provided with a sixth sealing ring which is sealed with the second valve seat.
[0013] In the above structure, the fifth sealing ring can improve the sealing between the first valve core and the first valve seat when water is stopped; the sixth sealing ring can improve the sealing between the second valve core and the second valve seat when water is stopped.
[0014] The utility model is further configured such that the first nozzle is located at the center of the nozzle, and the second nozzle is a plurality of nozzles that are evenly distributed around the first nozzle.
[0015] In the above structure, the first nozzle is for central water outlet, and the second nozzle is for peripheral water outlet, thereby realizing two different water outlet modes.
[0016] The utility model is further configured such that the distance between the first valve cavity and the nozzle is smaller than the distance between the second valve cavity and the nozzle.
[0017] In the above structure, the first valve chamber is closer to the nozzle than the second valve chamber.
[0018] The utility model is further configured that a sleeve is sleeved on the outside of the bracket, buttons are provided at the ends of the valve stems of the first valve core and the second valve core, and the sleeve is provided with a button hole for the button to pass through.
[0019] In the above structure, the sleeve is used for decoration and concealment.
[0020] The utility model is further configured such that a side of the first blocking cover facing away from the first valve core and a side of the second blocking cover facing away from the second valve core are both in contact with the inner wall of the sleeve.
[0021] In the above structure, the first blocking cover and the second blocking cover are fixed by abutting against the inner wall of the sleeve.
[0022] The beneficial effects of the utility model are as follows: the first valve cavity is opened from 6 o'clock to 12 o'clock of the bracket cross section, and the second valve cavity is opened from 12 o'clock to 6 o'clock of the bracket cross section, so that the cavity openings of the first valve cavity and the second valve cavity are staggered by 180 degrees in the circumferential direction of the bracket, thereby avoiding the first valve cavity and the second valve cavity being pulled against each other when they are energy-contracted and affecting the dimensional accuracy, reducing the impact on the overall size of the bracket during demoulding, so that the structure remains simple while ensuring the overall dimensional accuracy; the water inlet is formed by core pulling toward the rear end of the bracket; the first water outlet and the second water outlet are formed by core pulling toward the front end of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.
[0024] Figure 2 It is a schematic diagram of the full cutaway three-dimensional structure of the utility model.
[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the first cut surface of the bracket of the utility model.
[0026] Figure 4 For this utility model Figure 3Schematic diagram of the three-dimensional structure of the first nozzle in the first cross-sectional state.
[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the second cross-section of the bracket of the present invention.
[0028] Figure 6 For this utility model Figure 5 Schematic diagram of the three-dimensional structure of the second nozzle water outlet state in the second cross-sectional plane state.
[0029] Figure 7 For this utility model Figure 3 Schematic diagram of the water path structure of the first nozzle of the bracket in the water outlet state.
[0030] Figure 8 For this utility model Figure 5 Schematic diagram of the water path structure of the second nozzle of the bracket in the water outlet state.
[0031] Fig. 9 This is a schematic diagram of the exploded three-dimensional structure of the utility model from the first perspective.
[0032] Fig.10 This is a schematic diagram of the exploded three-dimensional structure of the utility model from a second viewing angle.
[0033] Fig.11 It is a schematic diagram of the fully exploded three-dimensional structure of the utility model.
[0034] Meaning of the numbers in the figure: 10- bracket; 11- first valve cavity; 111- first valve seat; 112- first water channel; 113- first sliding hole; 12- second valve cavity; 121- second return spring; 13- water inlet interface; 14- water inlet; 15- first water outlet; 16- second water outlet; 20- nozzle; 21- first nozzle; 22- second nozzle; 30- first valve core; 31- third sealing ring; 32- fifth sealing ring; 40- second valve core; 41- fourth sealing ring; 42- sixth sealing ring; 50- first plugging cover; 51- first return spring; 52- first sealing ring; 60- second plugging cover; 61- second valve seat; 62- second water channel; 63- second sliding hole; 64- second sealing ring; 65- water guide groove; 70- sleeve; 71- key hole; 80- key. DETAILED DESCRIPTION
[0035] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0036] refer to Figures 1 to 11 ,like Figures 1 to 11The spray gun shown in the figure comprises a bracket 10 formed by injection molding, wherein the bracket 10 is provided with a first valve cavity 11 and a second valve cavity 12 arranged along the length direction thereof, and a water inlet interface 13 is provided at the rear end of the bracket 10; a nozzle 20 is installed at the front end of the bracket 10, and the nozzle 20 is provided with a first nozzle 21 and a second nozzle 22, the first valve cavity 11 is opened from the 6 o'clock position of the bracket 10 section to the 12 o'clock position and is provided with a first valve core 30, and the second valve cavity 12 is opened from the 12 o'clock position of the bracket 10 section to the 6 o'clock position and is provided with a second valve core 40; the bracket 10 A water inlet 14 is provided inside, which connects the water inlet interface 13, the first valve cavity 11 and the second valve cavity 12; a first water outlet 15 for connecting the first nozzle 21 and the first valve cavity 11 and a second water outlet 16 for connecting the second nozzle 22 and the second valve cavity 12 are provided at the front end of the bracket 10; the first water outlet 15 and the first valve cavity 11 are controlled to be open and closed by the first valve core 30, and the second water outlet 16 and the second valve cavity 12 are controlled to be open and closed by the second valve core 40, and the valve stems of the first valve core 30 and the second valve core 40 are both located at the 12 o'clock position of the cross section of the bracket 10.
[0037] In the above structure, the first valve chamber 11 is opened from 6 o'clock on the cross section of the bracket 10 to 12 o'clock, and the second valve chamber 12 is opened from 12 o'clock on the cross section of the bracket 10 to 6 o'clock, so that the cavity openings of the first valve chamber 11 and the second valve chamber 12 are staggered by 180 degrees in the circumferential direction of the bracket 10, so as to avoid the first valve chamber 11 and the second valve chamber 12 being pulled against each other when they are energy-contracted and affecting the dimensional accuracy, and reduce the impact on the overall size of the bracket 10 during demoulding, so as to keep the structure simple while ensuring the overall dimensional accuracy; the water inlet 14 is formed by core pulling toward the rear end direction of the bracket 10; the first water outlet 15 and the second water outlet 16 are formed by core pulling toward the front end direction of the bracket 10.
[0038] In this embodiment, a first valve seat 111 is provided at the bottom of the first valve cavity 11, a first water channel 112 with an inner diameter smaller than that of the first valve cavity 11 is provided at the center of the first valve seat 111, a first sliding hole 113 with an inner diameter smaller than that of the first water channel 112 is provided at the center of the first water channel 112, and a valve stem of the first valve core 30 passes through the first sliding hole 113; the first water outlet 15 is communicated with the first water channel 112; a first blocking cover 50 is provided at the mouth of the first valve cavity 11, and the first blocking cover 50 and the first valve core 30 are supported by a first return spring 51 so that the first valve core 30 and the first valve seat 111 are abutted against each other to cut off the water flow between the first valve cavity 11 and the first water channel 112; a second blocking cover 60 is provided at the mouth of the second valve cavity 12, and the second blocking cover 60 faces a A second valve seat 61 is provided at the end, and a second water groove 62 with an inner diameter smaller than that of the second valve cavity 12 is provided at the center of the second valve seat 61, and a second sliding hole 63 with an inner diameter smaller than that of the second water groove 62 is provided at the center of the second water groove 62, and the valve stem of the second valve core 40 passes through the second sliding hole 63; two second sealing rings 64 are arranged at intervals on the outer wall of the second blocking cover 60 and are sealed with the inner wall of the second valve cavity 12, and a water guide groove 65 connected to the second water groove 62 is provided between the two second sealing rings 64, and the second water outlet 16 is connected to the second water groove 62 through the water guide groove 65; the second valve core 40 and the bottom of the second valve cavity 12 are supported by a second return spring 121 so that the second valve core 40 and the second valve seat 61 are abutted against each other to cut off the water flow between the second valve cavity 12 and the second water groove 62.
[0039] In the above structure, the first valve core 30 is installed into the first valve cavity 11 from the 6 o'clock direction of the bracket 10 to the 12 o'clock direction, and is blocked by the first plugging cover 50; the second valve core 40 is installed into the second valve cavity 12 from the 12 o'clock direction of the bracket 10 to the 6 o'clock direction, and is blocked by the second plugging cover 60, and the second sealing ring 64 can prevent water from jumping.
[0040] In this embodiment, a first sealing ring 52 is provided at the outer edge of the first blocking cover 50 to seal with the inner wall of the first valve cavity 11 .
[0041] In the above structure, the first sealing ring 52 can prevent water from leaking.
[0042] In this embodiment, the valve stem of the first valve core 30 is provided with a third sealing ring 31 which is sealed with the first sliding hole 113 ; the valve stem of the second valve core 40 is provided with a fourth sealing ring 41 which is sealed with the second sliding hole 63 .
[0043] In the above structure, the third sealing ring 31 can prevent water from jumping between the valve stem of the first valve core 30 and the first sliding hole 113 ; the fourth sealing ring 41 can prevent water from jumping between the valve stem of the second valve core 40 and the second sliding hole 63 .
[0044] In this embodiment, the first valve core 30 is provided with a fifth sealing ring 32 which is sealed with the first valve seat 111 ; the second valve core 40 is provided with a sixth sealing ring 42 which is sealed with the second valve seat 61 .
[0045] In the above structure, the fifth sealing ring 32 can improve the sealing between the first valve core 30 and the first valve seat 111 when water is stopped; the sixth sealing ring 42 can improve the sealing between the second valve core 40 and the second valve seat 61 when water is stopped.
[0046] In this embodiment, the first nozzle 21 is located at the center of the nozzle 20 , and there are a plurality of second nozzles 22 that are evenly distributed around the first nozzle 21 .
[0047] In the above structure, the first nozzle 21 is for central water outlet, and the second nozzle 22 is for peripheral water outlet, thereby realizing two different water outlet modes.
[0048] In this embodiment, the distance between the first valve cavity 11 and the nozzle 20 is smaller than the distance between the second valve cavity 12 and the nozzle 20 .
[0049] In the above structure, the first valve chamber 11 is closer to the nozzle 20 than the second valve chamber 12 .
[0050] In this embodiment, a sleeve 70 is sleeved on the outside of the bracket 10 , a button 80 is provided at the end of the valve stem of the first valve core 30 and the second valve core 40 , and the sleeve 70 is provided with a button hole 71 for the button 80 to pass through.
[0051] In the above structure, the sleeve 70 is used for decoration and concealment.
[0052] In this embodiment, a surface of the first blocking cover 50 facing away from the first valve core 30 and a surface of the second blocking cover 60 facing away from the second valve core 40 are both in contact with the inner wall of the sleeve 70 .
[0053] In the above structure, the first blocking cover 50 and the second blocking cover 60 are fixed by contacting with the inner wall of the sleeve 70 .
[0054] The beneficial effects of the utility model are as follows: the first valve cavity 11 is opened from 6 o'clock on the cross section of the bracket 10 to 12 o'clock, and the second valve cavity 12 is opened from 12 o'clock on the cross section of the bracket 10 to 6 o'clock, so that the cavity openings of the first valve cavity 11 and the second valve cavity 12 are staggered by 180 degrees in the circumferential direction of the bracket 10, thereby avoiding the first valve cavity 11 and the second valve cavity 12 being pulled against each other when they are energy-contracted and affecting the dimensional accuracy, reducing the impact on the overall size of the bracket 10 during demoulding, so that the structure remains simple while ensuring the overall dimensional accuracy; the water inlet 14 is formed by core pulling toward the rear end direction of the bracket 10; the first water outlet 15 and the second water outlet 16 are formed by core pulling toward the front end direction of the bracket 10.
[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.
Claims
1. A spray gun, comprising an injection-molded bracket, the bracket being provided with a first valve cavity and a second valve cavity arranged along its length, the rear end of the bracket being provided with a water inlet interface; the front end of the bracket being provided with a nozzle, the nozzle being provided with a first nozzle opening and a second nozzle opening, characterized in that: The first valve cavity is opened from 6 o'clock to 12 o'clock of the bracket cross section and is provided with a first valve core, and the second valve cavity is opened from 12 o'clock to 6 o'clock of the bracket cross section and is provided with a second valve core; a water inlet connecting the water inlet interface, the first valve cavity and the second valve cavity is provided in the bracket; a first water outlet connecting the first nozzle and the first valve cavity and a second water outlet connecting the second nozzle and the second valve cavity are provided at the front end of the bracket; the first water outlet and the first valve cavity are controlled by the first valve core for on-off control, and the second water outlet and the second valve cavity are controlled by the second valve core for on-off control, and the valve stems of the first valve core and the second valve core are both located at the 12 o'clock position of the bracket cross section.
2. A spray gun according to claim 1, characterized in that: A first valve seat is provided at the bottom of the first valve cavity, a first water groove with an inner diameter smaller than that of the first valve cavity is provided at the center of the first valve seat, a first sliding hole with an inner diameter smaller than that of the first water groove is provided at the center of the first water groove, and a valve stem of the first valve core passes through the first sliding hole; the first water outlet is connected to the first water groove; a first plugging cover is provided at the mouth of the first valve cavity, and a first return spring is supported between the first plugging cover and the first valve core so that the first valve core and the first valve seat are abutted against each other to cut off the water flow between the first valve cavity and the first water groove; a second plugging cover is provided at the mouth of the second valve cavity, and a second valve seat is provided at one end of the second plugging cover facing the bottom of the second valve cavity A second water groove having an inner diameter smaller than that of the second valve cavity is provided at the center of the second valve seat, a second sliding hole having an inner diameter smaller than that of the second water groove is provided at the center of the second water groove, and the valve stem of the second valve core passes through the second sliding hole; two second sealing rings are provided on the outer wall of the second blocking cover and are spaced apart from each other and sealed with the inner wall of the second valve cavity; a water guide groove connected to the second water groove is provided between the two second sealing rings, and the second water outlet is connected to the second water groove through the water guide groove; the second valve core and the bottom of the second valve cavity are supported by a second return spring so that the second valve core and the second valve seat are abutted against each other to cut off the water flow between the second valve cavity and the second water groove.
3. A spray gun according to claim 2, characterized in that: The outer edge of the first blocking cover is provided with a first sealing ring which is sealed with the inner wall of the first valve cavity.
4. A spray gun according to claim 2, characterized in that: The valve stem of the first valve core is provided with a third sealing ring which is sealed with the first sliding hole; the valve stem of the second valve core is provided with a fourth sealing ring which is sealed with the second sliding hole.
5. A spray gun according to claim 2, characterized in that: The first valve core is provided with a fifth sealing ring which is in sealing cooperation with the first valve seat; the second valve core is provided with a sixth sealing ring which is in sealing cooperation with the second valve seat.
6. A spray gun according to claim 1, characterized in that: The first nozzle is located at the center of the nozzle, and the second nozzles are multiple and evenly distributed around the first nozzle.
7. A spray gun according to claim 1, characterized in that: The distance between the first valve cavity and the nozzle is smaller than the distance between the second valve cavity and the nozzle.
8. A spray gun according to any one of claims 2 to 5, characterized in that: The bracket is covered with a sleeve on the outside, the valve stem ends of the first valve core and the second valve core are provided with buttons, and the sleeve is provided with a button hole for the button to pass through.
9. A spray gun according to claim 8, characterized in that: A surface of the first blocking cover facing away from the first valve core and a surface of the second blocking cover facing away from the second valve core are both in contact with the inner wall of the sleeve.