Water inlet valve capable of being quickly disassembled and assembled

Abstract

The invention provides a water inlet valve capable of being quickly disassembled and assembled. The water inlet valve comprises a pipe joint, a valve body and an elastic piece. The pipe joint comprises an upper joint and a lower joint which are communicated and connected, a limiting ring is arranged between the upper joint and the lower joint, the lower joint is provided with a thread used for being connected with a water supply pipe, and the inner wall of the upper joint is provided with a first clamping boss; the valve body comprises a water inlet pipe, an inserting pipe is formed at the bottom of the water inlet pipe, the inserting pipe is inserted into the upper connector and communicated with the upper connector, a second clamping boss is arranged on the outer wall of the inserting pipe, and when the inserting pipe is inserted into the upper connector from top to bottom to the second clamping boss and is lower than the first clamping boss, the valve body is rotated by a preset angle, so that the valve body can be clamped. The second clamping boss can be moved to the position corresponding to the first clamping boss in the axial direction; the elastic piece provides elastic force so that the second clamping boss tends to abut against the first clamping boss upwards. The quick disassembly and assembly structure of the water inlet valve is few in parts, simpler in structure and convenient and quick to disassemble and assemble, and the pressure bearing capacity is greatly improved.

Description

Technical Field

[0001] The invention relates to a quick-disassembly water inlet valve. Background Art

[0002] The valve body and pipe joint of most water inlet valves used in traditional toilet water tanks are integrally formed, and the valve body is located above the pipe joint. When installing, the pipe joint at the bottom of the water inlet valve is generally passed through the mounting hole of the bottom wall of the water tank from top to bottom, and then the pipe joint is locked on the bottom wall of the water tank with a nut below the bottom wall of the water tank, so that the water inlet valve is installed on the water tank. However, after the traditional water inlet valve is installed on the toilet water tank, if the water inlet valve is to be repaired or replaced, the space behind the toilet is usually very narrow, and it is difficult for a person to reach the back of the toilet to loosen the nut. For this reason, some water inlet valves that can be directly and quickly disassembled inside the water tank have appeared on the market, such as the Chinese utility model patent, publication number CN214064151U, which discloses "a mechanism and water inlet valve with a quick-install connector". However, the existing quick-installation water inlet valves generally have the defects of having more quick-installation structural parts and a relatively complex structure. In addition, some existing quick-install structures of water inlet valves may be unable to withstand high water pressure, resulting in an unreliable connection or even a risk of the valve body and the pipe joint being separated when the water pressure of the water inlet is high. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a quick-disassembly water inlet valve, which has fewer parts and a simpler structure. The valve body of the water inlet valve can be directly disassembled and assembled in the water tank. The disassembly and assembly is convenient and quick, and the pressure-bearing capacity is greatly improved. The greater the water pressure, the more secure the connection.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A quick-disassembly water inlet valve, comprising: A pipe joint, comprising an upper joint and a lower joint which are connected to each other, a limiting ring is arranged between the upper joint and the lower joint, the lower joint is provided with a thread for connecting with a water supply pipe, and a first clamping boss is arranged on the inner wall of the upper joint; The valve body comprises a water inlet pipe, a plug-in pipe is formed at the bottom of the water inlet pipe, the plug-in pipe is inserted into the upper joint and communicated with the upper joint, a second clamping boss is provided on the outer wall of the plug-in pipe, when the plug-in pipe is inserted into the upper joint from top to bottom until the position of the second clamping boss is lower than the first clamping boss, the second clamping boss can be moved to a position corresponding to the first clamping boss in the axial direction by rotating the valve body by a preset angle; The elastic member provides elastic force so that the second clamping boss has a tendency to abut against the first clamping boss upward.

[0005] In some preferred or optional embodiments, a plurality of first clamping bosses are provided and are evenly spaced along the circumference of the pipe joint, and a plug-in channel for the second clamping boss to pass through when inserted is formed between two adjacent first clamping bosses, and the top surface of the second clamping boss gradually extends downward from the middle to both ends to form a first guide bevel and a second guide bevel, and a guide boss is provided on the outer wall of the plug-in tube at a position directly below the second clamping boss in the axial direction, and the guide boss is inserted into the plug-in channel under the guiding action of the first guide bevel or the second guide bevel, thereby allowing the second clamping boss to be inserted into the plug-in channel.

[0006] In some preferred or optional embodiments, at least two second engaging bosses are provided, and at least one guide boss is provided.

[0007] In some preferred or optional embodiments, the number of the second locking bosses is the same as the number of the first locking bosses, and the number of the guide bosses is the same as the number of the first locking bosses or is less than the number of the first locking bosses.

[0008] In some preferred or optional embodiments, two notches are provided on the side wall of the upper part of the upper joint, a spring sheet is formed between the two notches, a groove is provided on the inner wall of the spring sheet, and the outer wall of the plug-in tube is provided with the same number of clamping points as the first clamping boss. When the valve body is rotated, the clamping points are sequentially engaged with the clamping grooves. When the clamping points are engaged with the clamping grooves, the first clamping boss and the second clamping boss correspond to each other in axial position.

[0009] In some preferred or optional embodiments, eight first clamping bosses are provided, wherein a forming hole penetrating through the inside and outside of the side wall of the upper joint is formed directly below four first clamping bosses evenly spaced along the circumferential direction.

[0010] In some preferred or optional embodiments, the bottom surface of the first clamping boss forms an upper concave surface that is recessed upward, and the top surface of the second clamping boss forms an upper convex surface that matches the shape of the upper concave surface.

[0011] In some preferred or optional embodiments, the elastic member includes a compression spring and a movable tube that passes through the upper and lower parts, the movable tube can be slidably arranged in the pipe joint up and down, the diameter of the upper joint is larger than the diameter of the lower joint, the inner wall of the pipe joint is located between the upper joint and the lower joint to form a limiting step, the inner wall of the lower joint is provided with an abutment ring, the upper end of the movable tube is turned outward to form a flange, the limiting step cooperates with the flange to limit the downward movement of the movable tube, the upper and lower ends of the compression spring are elastically abutted between the flange and the abutment ring respectively, and when the plug-in tube is inserted into the second clamping boss and the position is lower than the first clamping boss, it can abut the movable tube to compress the compression spring.

[0012] In some preferred or optional embodiments, an elastic hook is provided at the lower portion of the movable tube, a hook portion is provided at the lower end of the elastic hook, and the hook portion is snap-fitted with the lower surface of the abutment ring.

[0013] In some preferred or optional embodiments, the elastic member is an elastic arm integrally formed at the lower end of the plug-in tube, the diameter of the upper joint is larger than the diameter of the lower joint, the inner wall of the pipe joint is located between the upper joint and the lower joint to form a limiting step, and when the plug-in tube is inserted into the second clamping boss at a position lower than the first clamping boss, the free end of the elastic arm can abut against the limiting step and undergo elastic deformation.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The present invention separates the water inlet valve into a valve body and a pipe joint, the pipe joint is used to be fixed on the bottom wall of the water tank, and a quick disassembly structure is arranged between the valve body and the pipe joint, so that the valve body can be directly disassembled and repaired inside the water tank, which is very convenient and easy. In addition, the quick disassembly structure of the present invention includes a first clamping boss arranged on the inner wall of the upper joint and a second clamping boss arranged on the outer wall of the bottom of the water inlet pipe, and an elastic member that provides elastic force so that the second clamping boss has a tendency to abut against the first clamping boss upward. The quick disassembly structure has few parts (the first clamping boss can be directly integrally formed on the inner wall of the upper joint, and the second clamping boss can also be directly integrally formed on the outer wall of the bottom of the water inlet pipe), the structure is simple, and when disassembling, it is only necessary to make the first clamping boss and the second clamping boss engage or separate, so the disassembly is very convenient and quick. In addition, it is particularly worth mentioning that the quick-disassembly structure of the present application has the same upward direction of water inlet as the direction in which the second clamping boss clamps the first clamping boss upward. Therefore, the greater the water inlet pressure, the greater the force of the second clamping boss against the first clamping boss, and the more secure the clamping. Therefore, the present invention can greatly improve the pressure-bearing capacity of the water inlet valve. The greater the water pressure, the more secure the connection.

[0015] 2. In the water inlet valve of the present invention, a plurality of first clamping bosses are provided and are evenly spaced along the circumference of the pipe joint, and a plug-in channel for the second clamping boss to pass through when inserted is formed between two adjacent first clamping bosses, and the top surface of the second clamping boss gradually extends downward from the middle to both ends to form a first guide bevel and a second guide bevel, and a guide boss is provided on the outer wall of the plug-in pipe directly below the second clamping boss in the axial direction, and the guide boss is inserted into the plug-in channel under the guiding action of the first guide bevel or the second guide bevel, thereby allowing the second clamping boss to be inserted into the plug-in channel. This design enables the plug-in pipe to be smoothly inserted into the plug-in channel under the guiding action of the first guide bevel or the second guide bevel of the guide boss no matter at what angle the plug-in pipe is inserted into the upper joint, and the installation is more flexible and convenient.

[0016] 3. Two notches are provided on the side wall of the upper part of the upper joint, and a spring sheet is formed between the two notches. A clamping groove is provided on the inner wall of the spring sheet, and clamping points having the same number as the first clamping boss are provided on the outer wall of the plug-in tube. When the valve body is rotated, the clamping points are sequentially engaged with the clamping grooves, and when the clamping points are engaged with the clamping grooves, the first clamping boss and the second clamping boss correspond in axial position. With this design, through the feel or the engaging sound when the clamping points are engaged with the clamping grooves, it can be intuitively clear that the first clamping boss and the second clamping boss correspond in axial position at this time, thereby enabling the clamping of the two to be achieved, thereby prompting the operator to rotate the valve body to a predetermined angle.

[0017] 4. The four molding holes are used to form the four first clamping bosses located above the four molding holes by the "outward core pulling" injection molding process, while the other four first clamping bosses can be formed by the "inward core pulling" injection molding process. In this way, eight first clamping bosses are formed, which has a clever design, simple and easy molding, and a high yield rate.

[0018] 5. The elastic member adopts a compression spring and a movable tube. The compression spring provides an upward elastic force to the valve body through the movable tube, so that the first clamping boss and the second clamping boss are clamped together. The structure is simple and the function is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] in: Figure 1 is a schematic diagram of the three-dimensional structure of the water inlet valve of the first embodiment of the present invention; Figure 2 is a three-dimensional exploded schematic diagram of a water inlet valve according to a first embodiment of the present invention; Figure 3is a schematic diagram of the three-dimensional structure of the water inlet valve of the first embodiment of the present invention from another angle; Figure 4 is a three-dimensional exploded schematic diagram of the water inlet valve of the first embodiment of the present invention from another angle; Figure 5 is a three-dimensional exploded schematic diagram of the water inlet valve of the first embodiment of the present invention from another angle; Figure 6 is a cross-sectional view of a water inlet valve according to a first embodiment of the present invention; Figure 7 is a partial sectional view of the water inlet valve of the first embodiment of the present invention; Figure 8 is one of the three-dimensional schematic diagrams of the pipe joint of the first embodiment of the present invention; Fig. 9 is a second perspective schematic diagram of the pipe joint of the first embodiment of the present invention; Fig.10 is a three-dimensional cross-sectional view of a pipe joint according to a first embodiment of the present invention; Fig.11 is a top view of a water inlet valve according to a first embodiment of the present invention; Fig.12 This is one of the three-dimensional views of the assembly process of the first embodiment of the present invention (at this time, the valve body and the pipe joint are not plugged in); Fig.13 is Fig.12 In the state, along Fig.11 The cross-sectional view in the AA direction; Fig.14 This is the second stereoscopic diagram of the assembly process of the first embodiment of the present invention (at this time, the valve body is inserted into the pipe joint, and the valve body presses down the movable tube so that the compression spring is compressed and deformed to store energy, and the position of the second clamping boss is located at the lower left of the first clamping boss); Fig.15 is Fig.14 In the state, along Fig.11 The cross-sectional view in the AA direction; Fig.16 This is the third stereogram of the assembly process of the first embodiment of the present invention (at this time, the valve body is Fig.14 and Fig.15 In the state of being in ... Fig.17 is Fig.16 In the state, along Fig.11 The cross-sectional view in the AA direction; Fig.18This is the fourth stereoscopic diagram of the assembly process of the first embodiment of the present invention (at this time, the valve body is released manually, and under the action of the compression spring, the movable tube pushes upward against the valve body, so that the valve body moves upward, and the second clamping boss and the first clamping boss are clamped and limited); Fig.19 is Fig.18 In the state, along Fig.11 The cross-sectional view in the AA direction; Fig. 20 is a three-dimensional exploded schematic diagram of a water inlet valve according to a second embodiment of the present invention; Fig.21 yes Fig. 20 A cross-sectional view of Fig. 22 A cross-sectional view of a water inlet valve in an assembled state according to a second embodiment of the present invention; Fig.23 A cross-sectional view of a water inlet valve in a disassembled state according to a second embodiment of the present invention; Fig.24 is a front view of a water inlet valve in an assembled state according to a third embodiment of the present invention; Fig.25 is a front view of a water inlet valve in a disassembled state according to a third embodiment of the present invention; Fig.26 4 is a cross-sectional view of a water inlet valve in a disassembled state according to a third embodiment of the present invention.

[0021] The accompanying drawings in the figure are marked as follows: 10-pipe joint; 11-upper joint; 111-first clamping boss; 1111-upper concave surface; 112-insertion channel; 113-notch; 114-spring; 1141-slot; 12-lower joint; 121-abutment ring; 13-limiting ring; 14-molding hole; 15-limiting step; 20-valve body; 21-water inlet pipe; 211-plug-in pipe; 2111-second clamping boss; 21111-first guide slope; 21112-second guide slope; 21113-upper convex surface; 2112-guide boss; 21121-third guide slope; 21122-fourth guide slope; 2113-clamping point; 22-water outlet pipe; 30-elastic member; 31-compression spring; 32-movable tube; 321-flanged edge; 322-elastic hook; 40-conical sealing gasket; 50-washer; 60-Nut. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] First embodiment: See also Figures 1 to 19 A first preferred embodiment of the present invention provides a quick-disassembly water inlet valve, which is installed in a water tank (not shown) of a toilet and includes a pipe joint 10, a valve body 20 and an elastic member 30.

[0024] The pipe joint 10 includes an upper joint 11 and a lower joint 12 which are connected to each other, a limiting ring 13 is provided between the upper joint 11 and the lower joint 12, the limiting ring 13 is used to abut against the upper surface of the bottom wall of the water tank, the lower joint 12 is provided with a thread for connecting with a water supply pipe (not shown), and a first clamping boss 111 is provided on the inner wall of the upper joint 11. The upper joint 11 is used to be detachably connected to the valve body 20, and the lower joint 12 is used to be fixed on the bottom wall of the water tank.

[0025] The valve body 20 includes an inlet pipe 21, and a plug-in pipe 211 is formed at the bottom of the inlet pipe 21. The plug-in pipe 211 is inserted into the upper joint 11 and communicates with the upper joint 11. A second clamping boss 2111 is provided on the outer wall of the plug-in pipe 211. When the plug-in pipe 211 is inserted into the upper joint 11 from top to bottom until the position of the second clamping boss 2111 is lower than the first clamping boss 111, the second clamping boss 2111 can be moved to a position corresponding to the first clamping boss 111 in the axial direction by rotating the valve body 20 by a preset angle, that is, the second clamping boss 2111 is moved to directly below the first clamping boss 111.

[0026] The elastic member 30 provides an elastic force so that the second clamping boss 2111 has a tendency to abut against the first clamping boss 111 upward. When the second clamping boss 2111 moves to a position directly below the first clamping boss 111, after the valve body 20 is released, the valve body 20 can move axially upward under the elastic force of the elastic member 30, so that the second clamping boss 2111 and the first clamping boss 111 are clamped and limited.

[0027] In this embodiment, eight first clamping bosses 111 are provided and are evenly spaced along the circumference of the pipe joint 10, and a plug-in channel 112 is formed between two adjacent first clamping bosses 111 for the second clamping boss 2111 to pass through when inserted. The top surface of the second clamping boss 2111 gradually extends downward from the middle to both ends to form a first guiding inclined surface 21111 and a second guiding inclined surface 21112. A guiding boss 2112 is provided on the outer wall of the plug-in pipe 211 at a position directly below the second clamping boss 2111 in the axial direction. The guiding boss 2112 is inserted into the plug-in channel 112 under the guiding action of the first guiding inclined surface 21111 or the second guiding inclined surface 21112, thereby allowing the second clamping boss 2111 to be inserted into the plug-in channel 112. This design enables the plug-in tube 211 to be smoothly inserted into the plug-in channel under the guidance of the first guide bevel 21111 or the second guide bevel 21112 of the guide boss 2112 at any angle when inserted into the upper connector 11, making installation more flexible and convenient.

[0028] Preferably, see Figure 2 The bottom surface of the guide boss 2112 gradually extends upward from the middle to both ends to form a third guide slope 21121 and a fourth guide slope 21122. The third guide slope 21121 is guided and matched with the first guide slope 21111, and the fourth guide slope 21122 is guided and matched with the second guide slope 21112. By also providing two guide slopes on the guide boss 2112, the process of inserting the guide boss 2112 into the insertion channel 112 can be smoother.

[0029] Preferably, at least two second engaging bosses 2111 are provided, and at least one guide boss 2112 is provided. In this embodiment, the number of second engaging bosses 2111 is the same as the number of first engaging bosses 111, which is also 8. The number of guide bosses 2112 can be the same as the number of first engaging bosses 111 or can be less than the number of first engaging bosses 111. In this embodiment, two guide bosses 2112 are provided and are symmetrically arranged, see Fig.12 shown.

[0030] In this embodiment, see Figure 8 and Fig. 9 The upper side wall of the upper connector 11 is provided with two notches 113, and a spring sheet 114 is formed between the two notches 113. The inner wall of the spring sheet 114 is provided with a clamping groove 1141, and the outer wall of the plug-in tube 211 is provided with the same number of clamping points 2113 as the first clamping boss 111 (see Figure 5), when the valve body 20 is rotated, the clamping point 2113 is sequentially engaged with the clamping groove 1141, and when the clamping point 2113 is engaged with the clamping groove 1141, the first clamping boss 111 and the second clamping boss 2111 correspond in axial position. With this design, through the hand feeling or the clamping sound when the clamping point 2113 is engaged with the clamping groove 1141, it can be intuitively clear that the first clamping boss 111 and the second clamping boss 2111 correspond in axial position at this time, and then the clamping of the two can be achieved, which plays a role in prompting the operator to rotate the valve body 20 to a predetermined angle.

[0031] In this embodiment, as described above, there are eight first clamping bosses 111, wherein four first clamping bosses 111 evenly spaced along the circumferential direction are respectively formed with a forming hole 14 penetrating the inside and outside of the side wall of the upper joint 11, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.10 The four molding holes are used to mold the four first clamping bosses 111 located above the four molding holes by the "outward core pulling" injection molding process, while the other four first clamping bosses 111 can be molded by the "inward core pulling" injection molding process. In this way, eight first clamping bosses 111 are molded, which has an ingenious design, is simple and easy to mold, and has a high yield rate.

[0032] In this embodiment, the bottom surface of the first clamping protrusion 111 forms an upper concave surface 1111 which is concave upward (see Figure 2 and Figure 7 ), the top surface of the second clamping boss 2111 forms an upper convex surface 21113 whose shape matches the upper concave surface 1111 (see Figure 4 ). Specifically, in this embodiment, see Figure 2 , Figure 5 and Figure 7 The upper concave surface 1111 and the upper convex surface 21113 both extend gradually downward from the middle to both ends to form two straight inclined surfaces.

[0033] In this embodiment, see Figure 6 and Figure 7The elastic member 30 includes a compression spring 31 and a movable tube 32 that passes through the upper and lower parts. The movable tube 32 can be slidably arranged in the pipe joint 10. The diameter of the upper joint 11 is larger than the diameter of the lower joint 12. The inner wall of the pipe joint 10 is located between the upper joint 11 and the lower joint 12 to form a limiting step 15. The inner wall of the lower joint 12 is provided with an abutment ring 121. The upper end of the movable tube 32 is turned outward to form a flange 321. The limiting step 15 cooperates with the flange 321 to limit the downward movement of the movable tube 32. The upper and lower ends of the compression spring 31 are elastically abutted between the flange 321 and the abutment ring 121 respectively. When the plug-in tube 211 is inserted to the position of the second clamping boss 2111 lower than the first clamping boss 111, it can abut the movable tube 32 to compress the compression spring 31, so that the compression spring 31 elastically stores energy. The elastic member 30 adopts a compression spring 31 and a movable tube 32. The compression spring 31 provides an upward elastic force to the valve body 20 through the movable tube 32, so that the first clamping boss 111 and the second clamping boss 2111 are clamped together. The structure is simple and the function is reliable.

[0034] In order to facilitate the installation of the movable tube 32 in the pipe joint 10 so that it can slide up and down, in this embodiment, Figure 6 and Figure 7 An elastic hook 322 is provided at the lower part of the movable tube 32 , and a hook portion is provided at the lower end of the elastic hook 322 , and the hook portion is engaged with the lower surface of the limiting step 15 .

[0035] Continue to see Figure 6 and Figure 7 In this embodiment, the lower joint 12 is inserted into the mounting hole provided on the bottom wall of the water tank, and the water inlet valve further includes a conical sealing gasket 40, a washer 50 and a nut 60. The conical sealing gasket 40 is sleeved outside the lower joint 12 of the pipe joint 10, and the upper surface of the conical sealing gasket 40 is abutted and sealed with the lower surface of the limit ring 13, and the lower surface of the conical sealing gasket 40 is abutted and sealed with the upper surface of the bottom wall of the water tank. The washer 50 is sleeved outside the lower joint 12 and is used to match the lower surface of the bottom wall of the water tank. The nut 60 is threadedly connected with the external thread provided on the lower joint 12. The lower joint 12 is sealed and fixedly installed in the mounting hole on the bottom wall of the water tank by the conical sealing gasket 40, the washer 50 and the nut 60.

[0036] In this embodiment, see Figure 6 The valve body 20 further includes a water outlet pipe 22, which is sleeved outside the portion of the water inlet pipe 21 located above the plug-in pipe 211, that is, the plug-in pipe 211 is not sleeved inside the water outlet pipe 22, but is exposed below the water outlet pipe 22. The space between the inner wall of the water outlet pipe 22 and the outer wall of the water inlet pipe 21 forms a water outlet channel of the water inlet valve, and the bottom end of the water outlet pipe 22 forms a water outlet of the water inlet valve.

[0037] The assembly process of this embodiment is briefly described as follows: See also Fig.12 and Fig.13 At this time, the valve body 20 and the pipe joint 10 are not plugged in, and the two are in a phase separation state; See also Fig.14 and Fig.15 At this time, the valve body 20 is inserted into the pipe joint 10. During the insertion process, the guide boss 2112 is inserted along the plug-in passage 112 under the guiding cooperation of the third guide slope 21121 and the first guide slope 21111, or under the guiding cooperation of the fourth guide slope 21122 and the second guide slope 21112, and the valve body 20 presses down the movable tube 32 so that the compression spring 31 is compressed and deformed to store energy, and the position of the second clamping boss 2111 is located at the lower left or lower right of the first clamping boss 111; See also Fig.16 and Fig.17 At this time, the valve body 20 is Fig.14 and Fig.15 In the state of being in ... See also Fig.18 and Fig.19 At this time, the valve body 20 is released manually, and under the action of the compression spring 31, the movable tube 32 pushes the valve body 20 upward, so that the valve body 20 moves upward, and the second clamping boss 2111 and the first clamping boss 111 are clamped and limited, thereby completing the assembly process of the valve body 20 and the pipe joint 10. In this state, the greater the water pressure of the water inlet pipe 21, the tighter the clamping limit between the second clamping boss 2111 and the first clamping boss 111, and there is no need to worry about the risk of the clamping failure caused by excessive water pressure, which will cause the valve body 20 to separate from the pipe joint 10.

[0038] The disassembly process of this embodiment is briefly described as follows: The disassembly process is the opposite of the assembly process, as follows: First, in Fig.18 and Fig.19 In the state, the valve body 20 is pressed down, so that the second clamping boss 2111 moves downward and separates from the first clamping boss 111, and remains directly below the first clamping boss 111. At the same time, the compression spring 31 is compressed. At this time, the water inlet valve is in Fig.16 and Fig.17 state; then, in Fig.16 and Fig.17The valve body 20 is rotated clockwise or counterclockwise by a certain angle relative to the pipe joint 10, so that the second clamping boss 2111 is located at the lower left or lower right of the first clamping boss 111, and the compression spring 31 remains in a compressed state; finally, the valve body 20 is pulled upward from the pipe joint 10. During the pulling-out process, the second clamping boss 2111 withdraws along the plug-in channel 112, thereby completing the disassembly process of the valve body 20 and the pipe joint 10.

[0039] Second embodiment: See also Figure 20 to Figure 23 The second preferred embodiment of the present invention provides a quick-disassembly water inlet valve, which is mainly different from the first embodiment in that, in the first embodiment, the elastic member 30 is composed of a compression spring 31 and a movable tube 32, while in this embodiment, the elastic member 30 is an elastic arm integrally formed at the lower end of the plug-in tube 211, and specifically, two elastic arms are provided. Similar to the first embodiment, the diameter of the upper joint 11 is larger than the diameter of the lower joint 12, and the inner wall of the pipe joint 10 is located between the upper joint 11 and the lower joint 12 to form a limiting step 15. In this embodiment, when the plug-in tube 211 is inserted to a position where the second clamping boss 2111 is lower than the first clamping boss 111, the free end of the elastic arm can abut against the limiting step 15 and undergo elastic deformation. After the valve body 20 is released manually, the valve body 20 can move upward under the elastic force of the elastic arm.

[0040] The working principles of other structures not described in this embodiment refer to the first embodiment mentioned above and will not be repeated here.

[0041] Third embodiment: See also Figure 24 to Figure 26 The third preferred embodiment of the present invention provides a quick-disassembly water inlet valve, which is mainly different from the first embodiment in that, in this embodiment, the upper concave surface 1111 and the upper convex surface 21113 are both arc-shaped.

[0042] The working principles of other structures not described in this embodiment refer to the first embodiment mentioned above and will not be repeated here.

[0043] The present invention separates the water inlet valve into a valve body and a pipe joint, the pipe joint is used to be fixed on the bottom wall of the water tank, and a quick disassembly structure is arranged between the valve body and the pipe joint, so that the valve body can be directly disassembled and repaired inside the water tank, which is very convenient and easy. In addition, the quick disassembly structure of the present invention includes a first clamping boss arranged on the inner wall of the upper joint and a second clamping boss arranged on the outer wall of the bottom of the water inlet pipe, and an elastic member that provides elastic force so that the second clamping boss has a tendency to abut against the first clamping boss upward. The quick disassembly structure has few parts (the first clamping boss can be directly integrally formed on the inner wall of the upper joint, and the second clamping boss can also be directly integrally formed on the outer wall of the bottom of the water inlet pipe), the structure is simple, and when disassembling, it is only necessary to clamp or separate the first clamping boss and the second clamping boss, so the disassembly is very convenient and quick. In addition, it is particularly worth mentioning that the quick-disassembly structure of the present application has the same upward direction of water inlet as the direction in which the second clamping boss clamps the first clamping boss upward. Therefore, the greater the water inlet pressure, the greater the force of the second clamping boss against the first clamping boss, and the more secure the clamping. Therefore, the present invention can greatly improve the pressure-bearing capacity of the water inlet valve. The greater the water pressure, the more secure the connection.

[0044] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A quick-disassembly water inlet valve, characterized in that: include: A pipe joint, comprising an upper joint and a lower joint which are connected to each other, a limiting ring is arranged between the upper joint and the lower joint, the lower joint is provided with a thread for connecting with a water supply pipe, and a first clamping boss is arranged on the inner wall of the upper joint; The valve body comprises a water inlet pipe, a plug-in pipe is formed at the bottom of the water inlet pipe, the plug-in pipe is inserted into the upper joint and communicated with the upper joint, a second clamping boss is provided on the outer wall of the plug-in pipe, when the plug-in pipe is inserted into the upper joint from top to bottom until the position of the second clamping boss is lower than the first clamping boss, the second clamping boss can be moved to a position corresponding to the first clamping boss in the axial direction by rotating the valve body by a preset angle; The elastic member provides elastic force so that the second clamping boss has a tendency to abut against the first clamping boss upward.

2. The water inlet valve according to claim 1, characterized in that: A plurality of first clamping bosses are provided and are evenly spaced along the circumference of the pipe joint. A plug-in channel for the second clamping boss to pass through when inserted is formed between two adjacent first clamping bosses. The top surface of the second clamping boss gradually extends downward from the middle to both ends to form a first guide slope and a second guide slope. A guide boss is provided on the outer wall of the plug-in tube directly below the second clamping boss in the axial direction. The guide boss is inserted into the plug-in channel under the guiding action of the first guide slope or the second guide slope, thereby allowing the second clamping boss to be inserted into the plug-in channel.

3. The water inlet valve according to claim 2, characterized in that: There are at least two second clamping bosses and at least one guide boss.

4. The water inlet valve according to claim 3, characterized in that: The number of the second clamping bosses is the same as the number of the first clamping bosses, and the number of the guide bosses is the same as or less than the number of the first clamping bosses.

5. The water inlet valve according to claim 4, characterized in that: Two notches are provided on the side wall of the upper part of the upper joint, and a spring sheet is formed between the two notches. A clamping groove is provided on the inner wall of the spring sheet, and the outer wall of the plug-in tube is provided with clamping points with the same number as the first clamping boss. When the valve body is rotated, the clamping points are sequentially engaged with the clamping grooves. When the clamping points are engaged with the clamping grooves, the first clamping boss and the second clamping boss correspond to each other in axial position.

6. The water inlet valve according to claim 2, characterized in that: There are eight first clamping bosses, and a forming hole penetrating the inside and outside of the side wall of the upper joint is formed directly below four first clamping bosses that are evenly spaced along the circumferential direction.

7. The water inlet valve according to claim 1, characterized in that: The bottom surface of the first clamping boss forms an upper concave surface that is concave upward, and the top surface of the second clamping boss forms an upper convex surface that matches the shape of the upper concave surface.

8. The water inlet valve according to claim 1, characterized in that: The elastic member includes a compression spring and a movable tube that passes through the upper and lower parts. The movable tube can be slidably arranged in the pipe joint up and down. The diameter of the upper joint is larger than the diameter of the lower joint. The inner wall of the pipe joint is located between the upper joint and the lower joint to form a limiting step. The inner wall of the lower joint is provided with an abutment ring. The upper end of the movable tube is turned outward to form a flange. The limiting step cooperates with the flange to limit the downward movement of the movable tube. The upper and lower ends of the compression spring are elastically abutted between the flange and the abutment ring respectively. When the plug-in tube is inserted into the second clamping boss and the position is lower than the first clamping boss, it can abut the movable tube to compress the compression spring.

9. The water inlet valve according to claim 8, characterized in that: An elastic hook is arranged at the lower part of the movable tube, and a hook portion is arranged at the lower end of the elastic hook, and the hook portion is engaged and matched with the lower surface of the abutting ring.

10. The water inlet valve according to claim 1, characterized in that: The elastic member is an elastic arm integrally formed at the lower end of the plug-in tube, the diameter of the upper joint is larger than the diameter of the lower joint, the inner wall of the pipe joint is located between the upper joint and the lower joint to form a limiting step, and when the plug-in tube is inserted into the second clamping boss at a position lower than the first clamping boss, the free end of the elastic arm can abut against the limiting step and undergo elastic deformation.

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