Clamping structure of water inlet valve

Abstract

The utility model discloses a clamping structure of a water inlet valve. The clamping structure comprises a water inlet pipe, a water inlet connector, a guide sleeve, a locking block and an elastic piece. An installation channel is formed in the water inlet connector, the connecting end of the water inlet pipe is inserted into and matched with the installation channel in a sealing mode, an annular clamping groove is formed in the outer side wall of the connecting end, a through hole corresponding to the clamping groove is formed in the side wall of the installation channel, and the locking block is inserted into the through hole and clamped into the annular clamping groove so that the water inlet pipe can be limited in the installation channel. The guide sleeve is axially and slidably sleeved on the water inlet joint, a first pushing part and a second pushing part are formed on the guide sleeve, an abutting part is formed on the locking block, one end of the elastic piece is connected with the guide sleeve, and the other end of the elastic piece is connected with the water inlet joint, so that when the guide sleeve axially slides towards the direction of the elastic piece, the first pushing part drives the locking block to slide out of the annular clamping groove; the elastic piece is used for elastically pushing the guide sleeve to slide in the direction away from the elastic piece, so that the second pushing and abutting part drives the locking block to be clamped into the annular clamping groove. The water inlet pipe and the water inlet connector can be fixed and unlocked only by pressing the guide sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of the structure of a water inlet valve, and particularly relates to a clamping structure of a water inlet valve. Background Art

[0002] Toilets are usually installed in the corners of bathrooms, and the maintenance operation space is limited. The existing water inlet valve structures are usually connected by threads. When it is necessary to replace or maintain the main body of the water inlet valve, it is necessary to use tools to screw for disassembly and assembly, and it is not convenient to screw by hand, which is not convenient for operation in the water tank. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a clamping structure of a water inlet valve to solve the above technical problems and facilitate the disassembly and assembly of the water inlet valve.

[0004] To achieve the above purpose, the solution of the utility model is: a clamping structure of a water inlet valve, including a water inlet pipe, a water inlet joint, a guide sleeve, a locking block and an elastic member;

[0005] A connection end is formed on the water inlet pipe, and an installation channel is formed on the water inlet joint. The connection end is inserted into and sealingly fitted in the installation channel. An annular slot is formed on the outer side wall of the connection end, and a through hole corresponding to the annular slot is formed on the side wall of the installation channel. The locking block is inserted into the through hole and snapped into the annular slot to limit the water inlet pipe in the installation channel;

[0006] The guide sleeve is axially slidably sleeved on the water inlet joint. A first pushing portion and a second pushing portion are formed on the guide sleeve, and an abutting portion is formed on the locking block. One end of the elastic member is connected to the guide sleeve, and the other end is connected to the water inlet joint. When the guide sleeve slides axially towards the elastic member, the first pushing portion is used to drive the abutting portion to move radially away from the water inlet pipe, so that the locking block slides out of the annular slot. The elastic member is used to elastically push the guide sleeve to slide away from the elastic member, so that the second pushing portion drives the abutting portion to move radially towards the water inlet pipe, so that the locking block is snapped into the annular slot.

[0007] Further, the first pushing portion and the second pushing portion are arranged at intervals in the radial direction. The abutting portion is located between the first pushing portion and the second pushing portion. An inclined surface is formed on the first pushing portion, the inclined surface faces the elastic member and gradually inclines towards the water inlet pipe. An inclined surface is formed on the second pushing portion, the inclined surface deviates from the elastic member and gradually protrudes towards the water inlet pipe. When the locking block is snapped into the annular slot, the abutting portion abuts against the first pushing portion. When the locking block exits the annular slot, the abutting portion abuts against the second pushing portion.

[0008] Furthermore, a mounting hole is formed on the guide sleeve which passes through from top to bottom, an elastic hook is protruded on the inner wall of the mounting hole, and an anti-slip groove is formed on the outer wall of the water inlet joint, so that when the guide sleeve slides downward, the elastic hook slides into the anti-slip groove and is restricted from moving up and down in the anti-slip groove, so as to restrict the guide sleeve from slipping out of the water inlet joint.

[0009] Furthermore, an installation groove is formed on the outer side of the water inlet joint, and the installation groove extends to the bottom side of the through hole. The locking block also includes a clamping portion and a positioning portion. The clamping portion is located on the top side of the positioning portion, and the clamping portion extends radially toward the water inlet pipe. When the positioning portion is installed in the installation groove, the clamping portion passes through the through hole and is clamped into the annular clamping groove, and the clamping portion is away from the side of the water inlet pipe to form the above-mentioned abutment portion.

[0010] Furthermore, the clamping portion forms an arc surface on a side facing the water inlet pipe, and the abutting portion forms an arc surface on a side facing away from the water inlet pipe.

[0011] Furthermore, a longitudinal guide groove is formed on the inner wall of the installation hole, and a positioning rib cooperating with the guide groove is formed on the outer wall of the water inlet joint, so that when the guide sleeve is sleeved on the water inlet joint, the positioning rib is longitudinally inserted into the guide groove.

[0012] Furthermore, at least one annular groove is formed on the connecting end of the water inlet pipe, and a sealing ring is also included. The sealing ring is embedded in the annular groove to seal the water inlet pipe and the water inlet joint.

[0013] Furthermore, the elastic member is a compression spring.

[0014] Furthermore, the water inlet joint also includes a butterfly nut, a gasket and a triangular gasket. The water inlet joint is away from one end of the water inlet pipe, and its outer wall is formed with an external thread. The butterfly nut, the gasket and the triangular gasket are screwed to the external thread.

[0015] Furthermore, a buoyancy-controlled water inlet valve is fixed at the top of the water inlet pipe, the top of the water inlet pipe is connected to the water inlet end of the buoyancy-controlled water inlet valve, and the water outlet end of the buoyancy-controlled water inlet valve is connected to the toilet water tank.

[0016] After adopting the above solution, the beneficial effects of the present utility model are as follows: By pressing the guide sleeve, the guide sleeve moves towards the elastic member and compresses the elastic member. During this process, the first pushing portion of the guide sleeve drives the abutting portion of the locking block to move radially away from the water inlet pipe, causing the locking block to slide out of the annular card slot to achieve unlocking; when the external force is released, the elastic force of the elastic member drives the guide sleeve to move away from the elastic member, and the second pushing portion of the guide sleeve drives the abutting portion of the locking block to move radially towards the water pipe, causing the locking block to be inserted into the annular card slot to achieve locking; during use, when the water inlet pipe is installed with the water inlet joint, by pressing the guide sleeve to make the locking block in the unlocked state, the water inlet pipe is inserted into the installation channel of the water inlet joint, and when the external force is released, the elastic member drives the guide sleeve to drive the locking block to insert into the water inlet pipe for locking; when disassembly is required, by pressing the guide sleeve to make the locking block in the unlocked state, the water inlet pipe is pulled outwards to achieve the disassembly of the water inlet pipe; the present utility model can achieve unlocking and locking between the water inlet pipe and the water inlet joint only by pressing the guide sleeve, realizing rapid disassembly and assembly, being applicable to narrow installation spaces, with easy disassembly and assembly, convenient use, and high user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic combined structure diagram of the water inlet pipe and the water inlet joint of the present utility model.

[0018] Figure 2 is Figure 1 exploded structure diagram of.

[0019] Figure 3 is a schematic structure diagram of the guide sleeve of the present utility model.

[0020] Figure 4 is a three-dimensional sectional structure diagram of the guide sleeve of the present utility model.

[0021] Figure 5 is a schematic structure diagram of the locking block of the present utility model.

[0022] Figure 6 is a schematic structure diagram of the water inlet joint of the present utility model.

[0023] Figure 7 is a sectional structure diagram of the cooperation between the guide sleeve and the water inlet joint of the present utility model.

[0024] Figure 8 is a schematic structure diagram of the locking block moving towards the water inlet pipe of the present utility model.

[0025] Figure 9 is a schematic structure diagram of the clamping portion of the locking block of the present utility model being inserted into the annular card slot Figure 1 .

[0026] Figure 10 is a schematic structure diagram of the clamping portion of the locking block of the present utility model being inserted into the annular card slotFigure 2 .

[0027] Figure 11 It is a schematic structural diagram of the lock block of the present utility model moving in a direction away from the water inlet pipe.

[0028] Figure 12 It is a schematic structural diagram of the clamping portion of the lock block of the present utility model withdrawing from the annular card slot Figure 1 .

[0029] Figure 13 It is a schematic structural diagram of the clamping portion of the lock block of the present utility model withdrawing from the annular card slot Figure 2 .

[0030] Figure 14 It is an assembly schematic diagram of the water inlet pipe, the guide sleeve and the water inlet joint of the present utility model.

[0031] Label description:

[0032] 1 - water inlet pipe, 2 - water inlet joint, 3 - guide sleeve, 4 - lock block, 5 - elastic member, 6 - sealing ring, 7 - wing nut, 8 - gasket, 9 - triangular pad, 10 - buoyancy control water inlet valve, 101 - connection end, 102 - annular card slot, 103 - annular groove, 201 - installation channel, 202 - through hole, 203 - anti - detachment groove, 204 - installation groove, 205 - positioning rib, 206 - support plate, 301 - first pushing portion, 302 - second pushing portion, 303 - installation hole, 304 - elastic hook, 305 - guiding groove, 401 - abutting portion, 402 - clamping portion, 403 - positioning portion. Specific embodiments

[0033] The following will make a detailed description of the present utility model in conjunction with the accompanying drawings and specific embodiments.

[0034] In the claims, the description and the above - mentioned drawings of the present utility model, unless otherwise clearly defined, for orientation terms, such as the use of terms "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.

[0035] As Figures 1-14 shown, the present utility model provides a clamping structure of a water inlet valve. The water inlet valve is specifically a water inlet valve for a toilet, and will be mainly described in combination with Figures 1-2As shown, it includes a water inlet pipe 1, a water inlet joint 2, a guide sleeve 3, a locking block 4 and an elastic member 5; a buoyancy control water inlet valve 10 is fixed at the top end of the water inlet pipe 1, the top end of the water inlet pipe 1 is communicated with the water inlet end of the buoyancy control water inlet valve 10, the water outlet end of the buoyancy control water inlet valve 10 is conducted inside the toilet water tank, a connection end 101 is formed on the water inlet pipe 1, an installation channel 201 is formed on the water inlet joint 2, the connection end 101 is inserted and sealingly fitted inside the installation channel 201, a limiting wall is formed inside the installation channel 201, so that after the connection end 101 is inserted into the installation channel 201, the end of the connection end 101 abuts against the limiting wall to position the installation position of the water inlet pipe 1, an annular clamping groove 102 is formed on the outer side wall of the connection end 101, a through hole 202 corresponding to the annular clamping groove 102 is formed on the side wall of the installation channel 201, the locking block 4 is inserted into the through hole 202 and clamped into the annular clamping groove 102 to limit the water inlet pipe 1 inside the installation channel 201;

[0036] In this specific embodiment, the water inlet pipe 1 and the water inlet joint 2 are arranged longitudinally. Of course, in other embodiments, they can also be arranged horizontally or obliquely, without specific limitations. The guide sleeve 3 is axially slidably sleeved on the water inlet joint 2. Here, with emphasis on combining Figure 4 , a first pushing portion 301 and a second pushing portion 302 are formed on the guide sleeve 3, the first pushing portion 301 and the second pushing portion 302 are arranged at intervals in the radial direction, an abutting portion 401 is formed on the locking block 4, and the abutting portion 401 is located between the first pushing portion 301 and the second pushing portion 302; one end of the elastic member 5 is connected to the guide sleeve 3, and the other end is connected to the water inlet joint 2. With emphasis on combining Figure 9 and Figure 12 As shown, a support plate 206 is formed on the water inlet joint 2, one end of the elastic member 5 abuts against the top surface of the support plate 206, and the other end abuts against the bottom side of the guide sleeve 3. When the guide sleeve 3 slides axially towards the elastic member 5, the first pushing portion 301 is used to drive the abutting portion 401 to move radially away from the water inlet pipe 1, so that the locking block 4 slides out of the annular clamping groove 102, and the elastic member 5 is used to elastically push the guide sleeve 3 to slide in the direction away from the elastic member 5, so that the second pushing portion 302 drives the abutting portion 401 to move radially towards the water inlet pipe 1, so that the locking block 4 is clamped into the annular clamping groove 102.

[0037] Further, an inclined surface is formed on the first pushing portion 301, the inclined surface faces the elastic member 5 and gradually inclines towards the water inlet pipe 1, and an inclined surface is formed on the second pushing portion 302, the inclined surface faces away from the elastic member 5 and gradually protrudes towards the water inlet pipe 1. When the locking block 4 is inserted into the annular slot 102, the abutting portion 401 abuts against the first pushing portion 301, and when the locking block 4 exits the annular slot 102, the abutting portion 401 abuts against the second pushing portion 302. During use, when the guide sleeve 3 is pressed downwards, during the downward movement of the first pushing portion 301, the abutting portion 401 is gradually pushed outwards, causing the locking block 4 to exit the annular slot 102. After the external force is released, the compressed elastic member 5 returns to its original position, elastically driving the guide sleeve 3 to move upwards. During the upward movement of the second pushing portion 302, the abutting portion 401 is gradually pushed inwards, causing the locking block 4 to be inserted into the annular slot 102.

[0038] Focusing on Figure 3 As shown, an installation hole 303 that penetrates up and down is formed on the guide sleeve 3, and elastic hooks 304 protrude from the inner wall of the installation hole 303. An anti - detachment groove 203 is formed on the outer side wall of the water inlet joint 2. When the guide sleeve 3 slides downwards, the elastic hooks 304 slide into the anti - detachment groove 203 and are restricted to move up and down within the anti - detachment groove 203, thereby restricting the guide sleeve 3 from slipping out of the water inlet joint 2. Specifically, a downwardly retracted inclined surface is formed on the bottom side of the elastic hook 304. When the guide sleeve 3 is sleeved downwards on the water inlet joint 2, the inclined surface is arranged to facilitate the water inlet joint 2 to push the elastic hook 304 outwards. When the guide sleeve 3 continues to move downwards until the elastic hook 304 corresponds to the position of the anti - detachment groove 203, the elastic hook 304 elastically returns and slides into the anti - detachment groove 203, thereby limiting the guide sleeve 3 on the water inlet joint 2. In this specific embodiment, the number of elastic hooks 304 is two, and the two elastic hooks 304 are symmetrically arranged. Correspondingly, the number of anti - detachment grooves 203 is also two, and the two elastic hooks 304 respectively slide into and are limited within the anti - detachment grooves 203, making the guide sleeve 3 stably limited on the water inlet joint 2.

[0039] Focusing on Figure 4 , an annular channel 306 is formed on the outer periphery of the installation hole 303 of the guide sleeve 3, the bottom side of the annular channel 306 is open, the first pushing portion 301 and the second pushing portion 302 are respectively formed on the two inner side walls of the annular channel 306, the first pushing portion 301 is located on the side close to the water inlet pipe 1, and the second pushing portion 302 is located on the side away from the water inlet pipe 1. When the guide sleeve 3 is sleeved downwards on the water inlet joint 2, its bottom side opening faces downwards, so that the abutting portion 401 of the locking block 4 falls into the annular channel 306 and is located between the first pushing portion 301 and the second pushing portion 302.

[0040] Focusing on Figure 6As shown, a mounting groove 204 is formed on the outer side of the water inlet joint 2, and the mounting groove 204 extends to the bottom side of the through hole 202, and the bottom side of the mounting groove 204 extends to the top surface of the support plate 206, focusing on the combination Figure 5 As shown, the locking block 4 also includes a clamping portion 402 and a positioning portion 403. The clamping portion 402 is located at the top side of the positioning portion 403. The clamping portion 402 extends radially toward the water inlet pipe 1, so that when the positioning portion 403 is installed in the mounting groove 204, the clamping portion 402 passes through the through hole 202 and is clamped into the annular clamping groove 102. When the positioning portion 403 is installed in the mounting groove 204, the two opposite side walls of the mounting groove 204 are respectively limited at the two sides of the positioning portion 403, so as to avoid tilting when the locking block 4 is pushed by the guide sleeve 3. The locking block 4 is inclined to prevent the locking block 4 from deviating from the path of its insertion or withdrawal from the annular groove 102; the clamping portion 402 is away from the water inlet pipe 1 to form the above-mentioned abutment portion 401. Specifically, one locking block 4 is correspondingly provided with a first pushing portion 301 and a second pushing portion 302, and the two ends of the clamping portion 402 protrude from the two sides of the clamping portion 402 along the circumferential direction respectively. Correspondingly, the first pushing portion 301 forms two inclined surfaces, and the second pushing portion 302 also forms two inclined surfaces, which can improve the stability of the pushing locking block 4 and avoid tilting.

[0041] Furthermore, the clamping portion 402 forms an arc surface toward the water inlet pipe 1 to fit on the inner wall of the water inlet pipe 1 , and the abutting portion 401 forms an arc surface away from the water inlet pipe 1 to fit on the outer side of the water inlet connector 2 .

[0042] Focus on combining Figure 6 As shown, a longitudinal guide groove 305 is formed on the inner wall of the mounting hole 303, and a positioning rib 205 cooperating with the guide groove 305 is formed on the outer wall of the water inlet joint 2, so that when the guide sleeve 3 is sleeved on the water inlet joint 2, the positioning rib 205 is inserted into the guide groove 305 along the longitudinal direction to achieve guiding and positioning functions. In this specific embodiment, the number of the guide grooves 305 is two, and the two guide grooves 305 are symmetrically arranged. Correspondingly, the number of the positioning ribs 205 is also two, and the two positioning ribs 205 are respectively inserted into the two guide grooves 305, so that the guiding is more stable.

[0043] Focus on combining Figure 2 As shown, at least one annular groove 103 is formed on the connecting end 101 of the water inlet pipe 1, and also includes a sealing ring 6, which is embedded in the annular groove 103 to seal the water inlet pipe 1 and the water inlet joint 2. Specifically, the number of the annular grooves 103 is two, and the number of the sealing rings 6 is also two. Of course, in other embodiments, the design can also be carried out according to specific circumstances, and is not limited to this.

[0044] Furthermore, the elastic member 5 is a compression spring. Of course, in other embodiments, the elastic member 5 may also be a spring sheet or other, and is not limited thereto.

[0045] The water inlet connector 2 further comprises a butterfly nut 7, a gasket 8 and a triangular gasket 9. The water inlet connector 2 is at one end away from the water inlet pipe 1, and its outer wall is formed with an external thread, and the butterfly nut 7, the gasket 8 and the triangular gasket 9 are screwed to the external thread.

[0046] Focus on combination Figure 14 During installation, first insert the guide sleeve 3 downward onto the water inlet connector 2 until the elastic hook 304 slides into the anti-slip groove 203 to connect the guide sleeve 3 with the water inlet connector 2, then insert the water inlet pipe 1 downward into the installation channel 201 of the water inlet connector 2, loosen the guide sleeve 3, and the elastic member 5 elastically drives the guide sleeve 3 to move upward and reset. At the same time, the guide sleeve 3 drives the locking block 4 to snap into the annular groove 102 to fix and lock the water inlet pipe 1 and the water inlet connector 2.

[0047] Focus on combination Figures 11-13 As shown, Figure 11 The arrow direction indicates the direction in which the guide sleeve 3 moves downward, and H indicates the maximum distance the guide sleeve 3 moves downward. The external force presses the guide sleeve 3 downward and compresses the elastic member 5 until the bottom side of the guide sleeve 3 abuts against the support plate 206 of the water inlet joint 2. At this time, the guide sleeve 3 moves downward by a distance H. In this process, the first pushing portion 301 abuts against the abutting portion 401 of the locking block 4 and continuously drives the locking block 4 to move outward. Figure 13 The middle locking block 4 moves in the direction of the arrow until the engaging portion 402 of the locking block 4 completely exits the annular engaging groove 102 , and the water inlet pipe 1 and the water inlet connector 2 are unlocked.

[0048] Focus on combination Figures 8-10 As shown, Figure 8 The arrow direction indicates the direction in which the guide sleeve 3 moves upward. The elastic force of the elastic member 5 drives the guide sleeve 3 to move upward. During this process, the second abutting portion 302 abuts against the abutting portion 401 of the locking block 4 and continuously drives the locking block 4 to move inward. Figure 10 The middle locking block 4 moves in the direction of the arrow until the engaging portion 402 of the locking block 4 engages in the annular engaging groove 102 , and the water inlet pipe 1 and the water inlet connector 2 are fixedly locked.

[0049] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A clamping structure of a water inlet valve, characterized in that: It includes a water inlet pipe (1), a water inlet joint (2), a guide sleeve (3), a locking block (4) and an elastic member (5); A connection end (101) is formed on the water inlet pipe (1), and an installation channel (201) is formed on the water inlet joint (2). The connection end (101) is inserted into and sealingly fitted in the installation channel (201). An annular clamping groove (102) is formed on the outer side wall of the connection end (101), and a through hole (202) corresponding to the annular clamping groove (102) is formed on the side wall of the installation channel (201). The locking block (4) is inserted into the through hole (202) and clamped into the annular clamping groove (102) to limit the water inlet pipe (1) in the installation channel (201); The guide sleeve (3) is axially slidably sleeved on the water inlet joint (2). A first pushing portion (301) and a second pushing portion (302) are formed on the guide sleeve (3). An abutting portion (401) is formed on the locking block (4). One end of the elastic member (5) is connected to the guide sleeve (3), and the other end is connected to the water inlet joint (2). When the guide sleeve (3) slides axially towards the elastic member (5), the first pushing portion (301) is used to drive the abutting portion (401) to move radially away from the water inlet pipe (1) so that the locking block (4) slides out of the annular clamping groove (102). The elastic member (5) is used to elastically push the guide sleeve (3) to slide in the direction away from the elastic member (5), so that the second pushing portion (302) drives the abutting portion (401) to move radially towards the water inlet pipe (1) so that the locking block (4) is clamped into the annular clamping groove (102).

2. The snap connection structure of the water inlet valve according to claim 1, wherein: The first pushing portion (301) and the second pushing portion (302) are arranged at intervals in the radial direction. The abutting portion (401) is located between the first pushing portion (301) and the second pushing portion (302). An inclined surface is formed on the first pushing portion (301). The inclined surface faces the elastic member (5) and gradually inclines towards the water inlet pipe (1). An inclined surface is formed on the second pushing portion (302). The inclined surface faces away from the elastic member (5) and gradually protrudes towards the water inlet pipe (1). When the locking block (4) is clamped into the annular clamping groove (102), the abutting portion (401) abuts against the first pushing portion (301). When the locking block (4) exits the annular clamping groove (102), the abutting portion (401) abuts against the second pushing portion (302).

3. The snap - connection structure of the water inlet valve according to claim 1, characterized in that: An installation hole (303) penetrating up and down is formed on the guide sleeve (3). An elastic hook (304) protrudes from the inner wall of the installation hole (303). An anti - detachment groove (203) is formed on the outer side wall of the water inlet joint (2). When the guide sleeve (3) slides downward, the elastic hook (304) slides into the anti - detachment groove (203) and is restricted to move up and down in the anti - detachment groove (203) to restrict the guide sleeve (3) from sliding out of the water inlet joint (2).

4. The snap-fit structure of the water inlet valve according to claim 1, characterized in that: The water inlet joint (2) is provided with a mounting groove (204) on its outer surface, the mounting groove (204) extending to the bottom side of the through hole (202), the locking block (4) further comprising a clamping portion (402) and a positioning portion (403), the clamping portion (402) being located on the top side of the positioning portion (403), the clamping portion (402) extending radially toward the water inlet pipe (1), so that when the positioning portion (403) is installed in the mounting groove (204), the clamping portion (402) passes through the through hole (202) and is clamped into the annular clamping groove (102), and the clamping portion (402) is formed on the side facing away from the water inlet pipe (1) to form the above-mentioned abutment portion (401).

5. The snap - fit structure of the water inlet valve according to claim 4, wherein: The clamping portion (402) forms an arcuate surface on the side facing the water inlet pipe (1), and the abutting portion (401) forms an arcuate surface on the side facing away from the water inlet pipe (1).

6. The snap - fit structure of the water inlet valve according to claim 3, characterized in that: A longitudinally arranged guide groove (305) is formed on the inner side wall of the mounting hole (303), and a positioning rib (205) cooperating with the guide groove (305) is formed on the outer side wall of the water inlet joint (2), so that when the guide sleeve (3) is sleeved on the water inlet joint (2), the positioning rib (205) is inserted into the guide groove (305) along the longitudinal direction.

7. The snap - connection structure of the water inlet valve according to claim 1, characterized in that: At least one annular groove (103) is formed on the connection end (101) of the water inlet pipe (1), and also includes a sealing ring (6), which is embedded in the annular groove (103) to achieve a sealed connection between the water inlet pipe (1) and the water inlet joint (2).

8. The snap - fit structure of the water inlet valve according to claim 1, wherein: The elastic member (5) is a compression spring.

9. The snap - connection structure of the water inlet valve according to claim 1, wherein: The water inlet joint (2) further comprises a butterfly nut (7), a gasket (8) and a triangular gasket (9); the water inlet joint (2) is located at one end away from the water inlet pipe (1); an external thread is formed on its outer wall; the butterfly nut (7), the gasket (8) and the triangular gasket (9) are threadedly connected to the external thread.

10. The snap - connection structure of the water inlet valve according to claim 1, characterized in that: A buoyancy-controlled water inlet valve (10) is fixed to the top end of the water inlet pipe (1), the top end of the water inlet pipe (1) is connected to the water inlet end of the buoyancy-controlled water inlet valve (10), and the water outlet end of the buoyancy-controlled water inlet valve (10) is connected to the toilet water tank.

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