A water supply seat for a spray gun

Abstract

The application discloses a water supply seat of a spray gun and relates to the technical field of bathroom. In the water supply seat of the spray gun, a spray gun connector is arranged at the bottom of a support main body, the spray gun connector is provided with a water outlet channel for supplying water to the spray gun, and the side wall of the water outlet channel is provided with a residual water drainage hole; a drainage control valve core is movably arranged in the water outlet channel and is configured to be moved to a first closed position for blocking the communication between the water outlet channel and the residual water drainage hole under the action of water flow when the water outlet channel is in a water supply state; a first elastic member is connected to the drainage control valve core and is configured to accumulate elastic potential energy when the drainage control valve core is moved to the first closed position, so as to release the elastic potential energy to drive the drainage control valve core to reset to a first open position for allowing the communication between the water outlet channel and the residual water drainage hole when the water outlet channel is in a water cut-off state. The application can conveniently drain the residual water in the spray gun in time when the water outlet channel is in the water cut-off state.

Description

Technical Field

[0001] This application relates to the field of sanitary ware technology, and more specifically to a spray gun water supply base. Background Technology

[0002] Currently, during use, the spray gun's water supply base supplies water to the spray gun via a hose, and the water is sprayed out through the water outlet cover inside the spray gun. After use, residual water can easily remain inside the spray gun handle. Prolonged retention of this residual water will accelerate the aging of the spray gun and reduce its lifespan.

[0003] Therefore, how to drain the residual water from the spray gun in a timely and convenient manner remains a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, in order to solve the above-mentioned technical problems, this application provides a spray gun water supply base.

[0005] To achieve the above objectives, this application provides a spray gun water supply base, which includes:

[0006] The main body is supported, and a spray gun connector is provided at the bottom. The spray gun connector is provided with a water outlet channel for supplying water to the spray gun, and a residual water drainage hole is provided on the side wall of the water outlet channel.

[0007] The drain control valve core is movably disposed in the water outlet channel and is configured to move to the first closed position, blocking the connection between the water outlet channel and the residual water drain hole, when the water outlet channel is in the water flow state.

[0008] And a first elastic element, connected to the drain control valve core, is configured to accumulate elastic potential energy when the drain control valve core moves to the first closed position, so as to release the elastic potential energy to drive the drain control valve core to reset to the first open position that allows the drain channel to communicate with the residual water drain hole when the water outlet channel is in a water-cut-off state.

[0009] Beneficial effects: Unlike existing technologies, in this application, when the water outlet channel is in a water-flow state, the water flow pushes the drain control valve core to the first closed position, thereby blocking the connection between the water outlet channel and the residual water drain hole, and ensuring that the water flow in the water outlet channel can flow normally to the spray gun. When the water outlet channel is in a water-off state, the first elastic element releases its elastic potential energy to drive the drain control valve core back to the first open position, allowing the residual water in the spray gun to flow back into the water outlet channel and be discharged through the residual water drain hole. Thus, this application can promptly and conveniently discharge the residual water in the spray gun when the water outlet channel is cut off. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the spray gun water supply base of this application;

[0011] Figure 2 This is an exploded schematic diagram of a portion of the structure in the spray gun water supply base of this application;

[0012] Figure 3 This is an exploded schematic diagram of the assembly of the trigger and the water switch valve core in the spray gun water supply base of this application, and the second valve core sleeve.

[0013] Figure 4 This is a schematic diagram showing the cross-section line AA of the spray gun water supply base in this application;

[0014] Figure 5 The spray gun water supply base of this application is along Figure 4 The sectional view obtained by cutting along section line AA in the diagram. Figure 5 Used to mark the locations of region A and region B;

[0015] Figure 6 The spray gun water supply base of this application is along Figure 4 The sectional view obtained by cutting along section line AA in the diagram. Figure 6 Used to mark the location of region C;

[0016] Figure 7 yes Figure 5 Enlarged schematic diagram of region A in the middle;

[0017] Figure 8 yes Figure 6 Enlarged schematic diagram of region C in the middle;

[0018] Figure 9 yes Figure 5 A magnified view of region B in the middle.

[0019] Explanation of reference numerals in the attached figures:

[0020] Spray gun water supply base 10; support body 100; valve core mounting cavity 101; water inlet hole 102; water outlet hole 103; second valve core outer sleeve mounting groove 104; second valve core outer sleeve 105; fourth annular sealing part 1051; fifth annular sealing part 1052; annular manifold groove 106; mounting groove outlet 107; spray gun connector 110; water outlet channel 111; first channel section 1111; second channel section 1112; residual water drain hole 112; first valve core outer sleeve mounting groove 113; first valve core outer sleeve 114; threaded connection part 1141; annular water guide channel 115; residual water outlet 116; annular water passage cavity 117.

[0021] Cold water inlet 121; hot water inlet 122; mixed water outlet 123; temperature control valve 124; operating unit 125; columnar main body 130; columnar side protrusion 140; connecting seat 150; cold water inlet pipe 160; hot water inlet pipe 170;

[0022] Drainage control valve core 210; water passage groove 211; water passage hole 212; sixth annular sealing part 213; seventh annular sealing part 214; eighth annular sealing part 215; annular sealing area 216; first elastic element 220; spray gun support part 300; spray gun mounting groove 301; trigger element 410; water supply switch valve core 420; first annular pressure balance groove 421; second annular pressure balance groove 422; first annular sealing part 423; second annular sealing part 424; third annular sealing part 425; second elastic element 430; baffle 500; connecting hole 151. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figure 1 , Figure 4 , Figure 5 and Figure 7 The spray gun water supply base 10 of this application includes a support body 100, a drainage control valve core 210, and a first elastic element 220.

[0025] A spray gun connector 110 is provided at the bottom of the support body 100. The spray gun connector 110 is provided with a water outlet channel 111 for supplying water to the spray gun. A residual water drain hole 112 is provided on the side wall of the water outlet channel 111. A drain control valve core 210 is movably disposed in the water outlet channel 111 and is configured to move under the action of water flow to a first closed position that blocks the communication between the water outlet channel 111 and the residual water drain hole 112 when the water outlet channel 111 is in a water-flow state. A first elastic member 220 is connected to the drain control valve core 210 and is configured to accumulate elastic potential energy when the drain control valve core 210 moves to the first closed position, so as to release the elastic potential energy when the water outlet channel 111 is in a water-cut-off state, thereby driving the drain control valve core 210 to reset to a first open position that allows the communication between the water outlet channel 111 and the residual water drain hole 112.

[0026] In this manner, when the water outlet channel 111 is in a water-flow state, the water flow pushes the drain control valve core 210 to the first closed position, thereby blocking the connection between the water outlet channel 111 and the residual water drain hole 112, thus ensuring that the water flow in the water outlet channel 111 can flow normally to the spray gun. When the water outlet channel 111 is in a water-off state, the first elastic element 220 releases its elastic potential energy to drive the drain control valve core 210 back to the first open position, allowing the residual water in the spray gun to flow back into the water outlet channel 111 and be discharged through the residual water drain hole 112. Thus, in this application, the residual water in the spray gun can be discharged promptly and conveniently when the water outlet channel 111 is cut off.

[0027] Optionally, such as Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, the water outlet channel 111 includes a first channel section 1111 and a second channel section 1112. The inner diameter of the first channel section 1111 is smaller than the inner diameter of the second channel section 1112, and the residual water drain hole 112 is provided in the second channel section 1112.

[0028] The drain control valve core 210 is provided with a water passage groove 211 facing downstream of the second channel section 1112, and the side wall of the water passage groove 211 is provided with a water passage hole 212. An annular water passage cavity 117 communicating with the water passage hole 212 is formed between the drain control valve core 210 and the side wall of the second channel section 1112.

[0029] The drain control valve core 210 is movably disposed in the second channel section 1112. When the drain control valve core 210 is in the first open position, it extends to seal within the first channel section 1111. The drain control valve core 210 is configured to retract from the first channel section 1111 under the action of water pressure entering the first channel section 1111 when the outlet channel 111 is in a water-flow state, so as to move to the first closed position and connect the first channel section 1111 and the annular water passage chamber 117.

[0030] The above method has at least two beneficial effects. First, the water flow entering the first channel section 1111 can more fully act on the portion of the drain control valve core 210 that extends into and blocks the first channel section 1111, thereby pushing the portion of the drain control valve core 210 that extends into and blocks the first channel section 1111 out of the first channel section 1111. Second, in the first closed position, the water flow in the first channel section 1111 can sequentially flow through the annular water passage chamber 117, the water passage hole 212, and the water passage groove 211 to the second channel section 1112, and then supply water to the spray gun through the second channel section 1112.

[0031] Optionally, such as Figure 1 , Figure 4 , Figure 5and Figure 7 As shown, the spray gun connector 110 is provided with a first valve core sleeve mounting groove 113 and a first valve core sleeve 114.

[0032] One end of the first valve core sleeve 114 extends into the first valve core sleeve mounting groove 113, and the other end of the first valve core sleeve 114 extends out of the first valve core sleeve mounting groove 113 to form a threaded connection portion 1141 for connecting the spray gun hose. A water outlet channel 111 is formed inside the first valve core sleeve 114.

[0033] Among them, an annular water guide channel 115 is formed between the first valve core sleeve mounting groove 113 and the first valve core sleeve 114 corresponding to the residual water drain hole 112, which communicates with the residual water drain hole 112 and extends around the moving direction of the drain control valve core 210. A residual water outlet 116 is formed on the side wall of the first valve core sleeve mounting groove 113, which communicates with the annular water guide channel 115.

[0034] In this way, since the residual water outlet 116 is connected to the residual water drain hole 112 through the annular water guide channel 115, it is not necessary to align the residual water drain hole 112 with the residual water outlet 116 radially in the water outlet channel 111 when assembling the first valve core sleeve 114, thus improving the convenience of assembling the first valve core sleeve 114.

[0035] Optionally, such as Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, the outer periphery of the drain control valve core 210 is provided with a sixth annular sealing part 213, a seventh annular sealing part 214 and an eighth annular sealing part 215 extending around the moving direction of the drain control valve core 210.

[0036] The sixth annular sealing part 213 is located on the side of the water passage 212 near the upstream of the second channel section 1112. The seventh annular sealing part 214 and the eighth annular sealing part 215 are located on the side of the water passage 212 near the downstream of the second channel section 1112 and respectively make sealing contact with the sidewall of the second channel section 1112 to form a water-free annular sealing area 216 between the seventh annular sealing part 214 and the eighth annular sealing part 215.

[0037] When the drain control valve core 210 is in the first closed position, the sixth annular sealing part 213 retracts to the second channel section 1112 to connect the first channel section 1111 and the annular water passage chamber 117. When the drain control valve core 210 is in the first closed position, the annular sealing area 216 blocks the residual water drain hole 112 to prevent the water outlet channel 111 from communicating with the residual water drain hole 112. When the drain control valve core 210 is in the first open position, the annular sealing area 216 avoids the residual water drain hole 112 to allow the water outlet channel 111 to communicate with the residual water drain hole 112.

[0038] Optionally, such as Figures 1-8 As shown, the supporting main body 100 is provided with a valve core mounting cavity 101, a water inlet hole 102, and a water outlet hole 103. The water inlet hole 102 and the water outlet hole 103 penetrate the side wall of the valve core mounting cavity 101, and the water outlet hole 103 communicates with the water outlet channel 111. The spray gun water supply base 10 includes a spray gun support part 300, which is provided corresponding to the outer end of the valve core mounting cavity 101, and the spray gun support part 300 is provided with a spray gun mounting groove 301 for mounting the spray gun. The spray gun water supply base 10 includes an actuating element 410, a water supply switch valve core 420, and a second elastic element 430.

[0039] The actuating element 410 is configured to extend and retract relative to the spray gun support 300, so as to abut against the spray gun and be pressed into a retracted state when the spray gun is installed in the spray gun mounting groove 301. A water supply switch valve core 420 is movably disposed in the valve core mounting cavity 101 and connected to the actuating element 410. When the actuating element 410 is compressed to the retracted state, it moves the water supply switch valve core 420 to a second closed position, blocking communication between the inlet through-hole 102 and the outlet through-hole 103. A second elastic element 430 is configured to apply an elastic force to the water supply switch valve core 420, causing the actuating element 410 to extend into the spray gun mounting groove 301, so that when the spray gun is disengaged from the spray gun mounting groove 301, the water supply switch valve core 420 moves to a second open position, allowing communication between the inlet through-hole 102 and the outlet through-hole 103, and moves the actuating element 410 to the extended state.

[0040] In this manner, when using the spray gun, it can be removed from the spray gun mounting slot 301. At this time, the second elastic element 430 drives the water supply switch valve core 420 to the second open position and causes the actuating element 410 to extend, allowing water from the inlet port 102 to flow through the outlet port 103 into the outlet channel 111. When the spray gun is not in use, it can be inserted into the spray gun mounting slot 301. At this time, the spray gun presses against the actuating element 410, causing the actuating element 410 to be pressed into the retracted state, driving the water supply switch valve core 420 to the second closed position, thus blocking the water from the inlet port 102. In this way, the water supply to the spray gun can be adaptively blocked when the spray gun is inserted into the spray gun mounting slot 301, and the water supply to the spray gun can be adaptively restored when the spray gun is removed from the spray gun mounting slot 301. This makes the use of the spray gun more convenient.

[0041] Optionally, such as Figures 1-8 As shown, a first annular pressure-balanced groove 421 extending around the moving direction of the water-turn valve core 420 is provided on the outer periphery of the water-turn valve core 420.

[0042] When the water supply switch valve core 420 moves to the second closed position, the first annular pressure balancing groove 421 connects to the inlet through hole 102 and disconnects from the outlet through hole 103, thereby blocking the connection between the inlet through hole 102 and the outlet through hole 103. When the water supply switch valve core 420 moves to the second open position, the first annular pressure balancing groove 421 connects the inlet through hole 102 and the outlet through hole 103, thereby allowing the connection between the inlet through hole 102 and the outlet through hole 103.

[0043] In this way, the water flow from the inlet hole 102 enters the first annular pressure balancing groove 421, so that the force exerted by the water flow on the water switch valve core 420 in the direction of movement of the water switch valve core 420 is nearly balanced, thereby reducing the resistance encountered by the water switch valve core 420 when it moves, and allowing the water switch valve core 420 to move more smoothly.

[0044] Optionally, such as Figures 1-8 As shown, a second annular pressure balancing groove 422 extending around the moving direction of the water switch valve core 420 is provided on the outer periphery of the water switch valve core 420. The second annular pressure balancing groove 422 and the first annular pressure balancing groove 421 are spaced apart along the moving direction of the water switch valve core 420. When the water switch valve core 420 moves from the second closed position to the second open position, the second annular pressure balancing groove 422 is connected to the water outlet through hole 103.

[0045] In the above manner, during the movement of the water supply switch valve core 420, the water flow acts on the water supply switch valve core 420 through the first annular pressure balancing groove 421 and the second annular pressure balancing groove 422, so that the force exerted by the water flow on the water supply switch valve core 420 in the direction of movement of the water supply switch valve core 420 is nearly balanced, thereby reducing the resistance encountered by the drain switch valve core 420 when it moves, and allowing the water supply switch valve core 420 to move more smoothly.

[0046] Optionally, such as Figures 1-8 As shown, the spray gun water supply base 10 is provided with a second valve core sleeve mounting groove 104, a second valve core sleeve 105 is provided in the second valve core sleeve mounting groove 104, a valve core mounting cavity 101 is formed in the second valve core sleeve 105, and the spray gun support part 300 is correspondingly provided at the open end of the second valve core sleeve mounting groove 104.

[0047] Multiple inlet holes 102 are spaced apart in the circumferential direction of movement of the water-operated valve core 420. Multiple outlet holes 103 are spaced apart in the circumferential direction of movement of the water-operated valve core 420. The side wall of the second valve core sleeve 105 is provided with an annular manifold 106 corresponding to the multiple outlet holes 103, and the annular manifold 106 is connected to the multiple outlet holes 103 respectively; the side wall of the second valve core sleeve mounting groove 104 is provided with a mounting groove outlet 107, and the mounting groove outlet 107 is connected to the annular manifold 106 and the outlet channel 111 respectively.

[0048] In this way, since the outlet 107 of the mounting groove is connected to multiple outlet holes 103 through the annular confluence groove 106, when assembling the second valve core sleeve 105, it is not necessary for the outlet holes 103 to be radially aligned with the outlet 107 of the mounting groove 104 of the second valve core sleeve, thus improving the convenience of assembling the second valve core sleeve 105.

[0049] Optionally, such as Figures 1-8 As shown, the outer periphery of the water-turn valve core 420 is provided with a first annular sealing portion 423, a second annular sealing portion 424, and a third annular sealing portion 425 extending around the moving direction of the water-turn valve core 420 and sealingly contacting the side wall of the second valve core outer sleeve 105. The third annular sealing portion 425 is located on the side of the mounting groove outlet 107 near the spray gun support portion 300. A first annular pressure balancing groove 421 is formed between the first annular sealing portion 423 and the second annular sealing portion 424. A second annular pressure balancing groove 422 is formed between the third annular sealing portion 425 and the first annular sealing portion 423.

[0050] The side wall of the second valve core sleeve 105 is provided with a fourth annular sealing part 1051 and a fifth annular sealing part 1052, which extend around the moving direction of the water-connecting switch valve core 420 and are in sealing contact with the side wall of the second valve core sleeve mounting groove 104. The fourth annular sealing part 1051 is located on the side of the mounting groove outlet 107 near the spray gun support 300, and the fifth annular sealing part 1052 is located on the side of the mounting groove outlet 107 away from the spray gun support. The water inlet hole 102 is located on the side of the fifth annular sealing part 1052 away from the fourth annular sealing part 1051.

[0051] Optionally, such as Figures 1-9 As shown, the support body 100 is provided with a cold water inlet 121, a hot water inlet 122, a mixed water outlet 123, a temperature regulating valve 124, and an operating part 125. The mixed water outlet 123 is connected to the second valve core outer sleeve mounting groove 104.

[0052] The temperature control valve 124 receives cold water from the cold water inlet 121 and hot water from the hot water inlet 122 and outputs it to the mixed water outlet 123. The operating unit 125 is connected to the temperature control valve 124 and is used to drive the valve 124 under controlled conditions to change the water inlet ratio of the cold water inlet 121 and the hot water inlet 122. It should be noted that the operating unit 125 can be a handle or a knob, but is not limited to these.

[0053] In this way, the temperature of the water flowing out of the mixed water outlet 123 can be adjusted by manually adjusting the operating unit 125, thereby changing the temperature of the water sprayed from the spray gun.

[0054] Optionally, such as Figures 1-9 As shown, the support body 100 includes a columnar body 130, a columnar side protrusion 140, and a connecting seat 150.

[0055] The valve core mounting cavity 101 is located at one end of the columnar main body 130. The cold water inlet 121, the hot water inlet 122, and the mixed water outlet 123 are located in the columnar main body 130. The spray gun connector 110 and the columnar side protrusion 140 protrude from the outer side wall of the columnar main body 130, and the temperature regulating valve 124 is located in the columnar side protrusion 140. The connecting seat 150 is connected to the other end of the columnar main body 130.

[0056] A cold water inlet pipe 160 and a hot water inlet pipe 170 are formed between the connecting seat 150 and the other end of the columnar main body 130. The cold water inlet pipe 160 is connected to the cold water outlet 121, and the hot water inlet pipe 170 is connected to the hot water outlet 122.

[0057] The spray gun water supply base 10 can be installed via the connector 150 using the method described above. For example, and not as a limitation, the connector 150 is provided with a connection hole 151 for engaging with a fastener to install it onto the bathroom wall. This fastener includes, but is not limited to, screws or bolts.

[0058] Optionally, such as Figures 1-9 As shown, the spray gun water supply base 10 includes a baffle 500, which is disposed on the columnar main body 130 and extends in a ring around the columnar main body 130. The columnar side protrusion 140 and the spray gun connector 110 are located on the side of the baffle 500 facing the spray gun support 300, and the connector 150 is located on the side of the baffle 500 away from the spray gun support 300. In this way, the baffle 500 can block water, thereby preventing or reducing the corrosion of the connection structure between the connector 150 and the wall.

[0059] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A spray gun water supply base, characterized in that, The spray gun water supply base includes: The main body is supported, and a spray gun connector is provided at the bottom. The spray gun connector is provided with a water outlet channel for supplying water to the spray gun, and a residual water drainage hole is provided on the side wall of the water outlet channel. The drain control valve core is movably disposed in the water outlet channel and is configured to move to a first closed position under the action of water flow when the water outlet channel is in the water-flow state, blocking the connection between the water outlet channel and the residual water drain hole. And a first elastic element, connected to the drain control valve core, configured to accumulate elastic potential energy when the drain control valve core moves to the first closed position, so as to release the elastic potential energy to drive the drain control valve core to reset to the first open position that allows the drain channel to communicate with the residual water drain hole when the water outlet channel is in a water-cut-off state.

2. The spray gun water supply base according to claim 1, characterized in that, The water outlet channel includes a first channel section and a second channel section, the inner diameter of the first channel section is smaller than the inner diameter of the second channel section, and the residual water drain hole is located in the second channel section; The drain control valve core is provided with a water passage groove facing downstream of the second channel section, and the side wall of the water passage groove is provided with a water passage hole; an annular water passage cavity communicating with the water passage hole is formed between the drain control valve core and the side wall of the second channel section. Wherein, the drain control valve core is movably disposed in the second channel section; when the drain control valve core is in the first open position, the drain control valve core extends to block the first channel section; the drain control valve core is configured to exit the first channel section under the action of water pressure entering the first channel section when the water outlet channel is in the water-flow state, so as to move to the first closed position and make the first channel section and the annular water passage cavity connected.

3. The spray gun water supply base according to claim 2, characterized in that, The outer periphery of the drain control valve core is provided with a sixth annular sealing part, a seventh annular sealing part and an eighth annular sealing part extending around the moving direction of the drain control valve core. The sixth annular sealing part is located on the side of the water passage near the upstream of the second channel section; the seventh annular sealing part and the eighth annular sealing part are located on the side of the water passage near the downstream of the second channel section and respectively seal against the side wall of the second channel section to form a non-water-permeable annular sealing area between the seventh annular sealing part and the eighth annular sealing part. When the drain control valve core is in the first closed position, the sixth annular sealing part retracts to the second channel section to connect the first channel section and the annular water passage cavity; when the drain control valve core is in the first closed position, the annular blocking area blocks the residual water drain hole to prevent the water outlet channel from communicating with the residual water drain hole; when the drain control valve core is in the first open position, the annular blocking area avoids the residual water drain hole to allow the water outlet channel to communicate with the residual water drain hole.

4. The spray gun water supply base according to claim 1, characterized in that, The spray gun connector is provided with a first valve core sleeve mounting groove and a first valve core sleeve. One end of the first valve core sleeve extends into the first valve core sleeve mounting groove, and the other end of the first valve core sleeve extends out of the first valve core sleeve mounting groove to form a threaded connection for connecting the spray gun hose; the water outlet channel is formed inside the first valve core sleeve. Wherein, between the first valve core sleeve mounting groove and the first valve core sleeve, an annular water guide channel is formed corresponding to the residual water drainage hole and extending around the moving direction of the drainage control valve core; the side wall of the first valve core sleeve mounting groove is formed with a residual water outlet that communicates with the annular water guide channel.

5. The spray gun water supply base according to claim 1, characterized in that, The supporting main body is provided with a valve core mounting cavity, a water inlet through hole, and a water outlet through hole; the water inlet through hole and the water outlet through hole penetrate the side wall of the valve core mounting cavity, and the water outlet through hole communicates with the water outlet channel; the spray gun water supply base includes a spray gun support part, which is provided corresponding to the outer end of the valve core mounting cavity, and the spray gun support part is provided with a spray gun mounting groove for mounting the spray gun; the spray gun water supply base includes: The actuating element is configured to extend and retract relative to the spray gun support so as to abut against the spray gun and be pressed into a retracted state when the spray gun is installed in the spray gun mounting slot. A water-flow switch valve core is movably disposed in the valve core mounting cavity and connected to the actuating element; when the actuating element is compressed to the retracted state, it drives the water-flow switch valve core to move to the second closed position, blocking the communication between the water inlet and the water outlet. And a second elastic element, configured to apply an elastic force to the water supply switch valve core to extend the actuating element into the spray gun mounting slot, so that when the spray gun is disengaged from the spray gun mounting slot, the water supply switch valve core is moved to a second open position that allows the water inlet through-hole to communicate with the water outlet through-hole and drives the actuating element to the extended state.

6. The spray gun water supply base according to claim 5, characterized in that, The outer periphery of the water supply switch valve core is provided with a first annular pressure balancing groove extending around the moving direction of the water supply switch valve core. When the water supply switch valve core moves to the second closed position, the first annular pressure balance groove connects to the water inlet through hole and disconnects from the water outlet through hole, thereby blocking the connection between the water inlet through hole and the water outlet through hole; When the water supply switch valve core moves to the second open position, the first annular pressure balance groove connects the water inlet through hole and the water outlet through hole to allow communication between the water inlet through hole and the water outlet through hole.

7. The spray gun water supply base according to claim 6, characterized in that, The outer periphery of the water supply switch valve core is provided with a second annular pressure balancing groove extending around the moving direction of the water supply switch valve core. The second annular pressure balancing groove and the first annular pressure balancing groove are spaced apart along the moving direction of the water supply switch valve core. When the water supply switch valve core moves from the second closed position to the second open position, the second annular pressure balancing groove communicates with the water outlet through hole.

8. The spray gun water supply base according to claim 7, characterized in that, The spray gun water supply base is provided with a second valve core sleeve mounting groove, a second valve core sleeve is provided in the second valve core sleeve mounting groove, the valve core mounting cavity is formed in the second valve core sleeve, and the spray gun support is correspondingly provided at the opening end of the second valve core sleeve mounting groove; Multiple inlet holes are spaced apart in a circumferential direction around the movement direction of the water-turn valve core; multiple outlet holes are spaced apart in a circumferential direction around the movement direction of the water-turn valve core; the side wall of the second valve core sleeve is provided with an annular manifold corresponding to the multiple outlet holes, and the annular manifold is respectively connected to the multiple outlet holes; the side wall of the mounting groove of the second valve core sleeve is provided with a mounting groove outlet, and the mounting groove outlet is respectively connected to the annular manifold and the outlet channel.

9. The spray gun water supply base according to claim 8, characterized in that, The outer periphery of the water-pass valve core is provided with a first annular sealing portion, a second annular sealing portion, and a third annular sealing portion extending around the moving direction of the water-pass valve core and sealingly contacting the side wall of the second valve core outer sleeve; the third annular sealing portion is located on the side of the mounting groove outlet near the spray gun support portion; the first annular pressure balancing groove is formed between the first annular sealing portion and the second annular sealing portion; the second annular pressure balancing groove is formed between the third annular sealing portion and the first annular sealing portion; The side wall of the second valve core sleeve is provided with a fourth annular sealing part and a fifth annular sealing part that extend around the moving direction of the water switch valve core and are in sealing contact with the side wall of the second valve core sleeve mounting groove; the fourth annular sealing part is located on the side of the mounting groove outlet near the spray gun support, and the fifth annular sealing part is located on the side of the mounting groove outlet away from the spray gun support; the water inlet is located on the side of the fifth annular sealing part away from the fourth annular sealing part.

10. The spray gun water supply base according to claim 8, characterized in that, The main support unit is provided with a cold water inlet, a hot water inlet, a mixed water outlet, a temperature regulating valve, and an operating unit; the mixed water outlet is connected to the mounting groove of the second valve core sleeve. The temperature control valve is used to receive cold water flowing in from the cold water inlet and hot water flowing in from the hot water inlet and output it to the mixed water outlet; the operating unit is connected to the temperature control valve and is used to drive the temperature control valve under control to change the inlet ratio of the cold water inlet and the hot water inlet.

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