Quick release structure for water inlet valve of closestool water tank

Abstract

The utility model discloses a closestool water tank water inlet valve quick release structure which comprises a water guide seat, a water inlet pipe and a water outlet pipe sleeved outside the water inlet pipe, the water inlet pipe and the water outlet pipe are vertically arranged, the water guide seat is provided with a water guide channel, the water inlet end of the water guide channel is communicated with the water inlet pipe, and the water outlet end of the water guide channel is communicated with the water outlet pipe. The water outlet pipe is connected with the water guide seat, a guide pipe extending downwards is arranged at the center of the bottom of the water guide seat, an inner cavity of the guide pipe serves as a component of the water guide channel, the guide pipe is connected with the water inlet pipe in an inserted mode, and a rotary clamping structure is arranged between the guide pipe and the water inlet pipe. The rotary clamping structure is arranged between the guide pipe and the water inlet pipe of the water guide seat, the rotary clamping structure can be unlocked only by rotating the water guide seat during disassembly, so that the water guide seat and the water outlet pipe are disassembled together, the water guide seat is unlocked and locked from the upper side, the water guide seat does not need to extend into a water tank, and disassembly and assembly are very convenient and rapid.

Description

Technical Field

[0001] This utility model relates to a toilet tank inlet valve, and in particular to a quick-release structure for the toilet tank inlet valve. Background Technology

[0002] A toilet tank inlet valve typically includes an inlet pipe, an outlet pipe, a guide seat, a back pressure switch, and a float. The inlet pipe covers the outlet pipe and connects to the guide seat. The float is linked to the back pressure switch, which selects to open or close the water passage within the guide seat based on the water level. During installation, the inlet pipe is fixedly connected to the toilet tank and to the external water pipe. Since the inlet pipe is rarely damaged, existing inlet valves have a locking device between the bottom of the inlet pipe and the outlet pipe for easy maintenance. The inlet pipe and guide seat are connected by a plug-in joint. This allows the valve to be removed except for the inlet pipe after the locking device is released. However, operators need to reach into the bottom of the tank to operate the locking device, which is difficult due to the limited space inside the tank. Furthermore, the locking device, located at the bottom of the inlet valve and constantly submerged in water, is prone to accumulating dirt and becoming stuck, eventually making disassembly impossible. Utility Model Content

[0003] This utility model provides a quick-release structure for the inlet valve of a toilet tank, facilitating disassembly and maintenance and solving the technical problem of inconvenient operation due to limited space in the tank. The technical solution adopted by this utility model to solve its technical problem is as follows:

[0004] The toilet tank inlet valve quick-release structure includes a water guide seat, an inlet pipe, and an outlet pipe sleeved outside the inlet pipe. The inlet and outlet pipes are vertically arranged. The water guide seat has a water guiding channel. The inlet end of the water guiding channel is connected to the inlet pipe, and the outlet end is connected to the outlet pipe. The outlet pipe is connected to the water guide seat. The water guide seat has a downward-extending guide tube at the center of its bottom. The inner cavity of the guide tube is part of the water guiding channel. The guide tube is inserted into the inlet pipe. A rotation locking structure is provided between the guide tube and the inlet pipe. When the guide tube and the inlet pipe are locked in the rotation locking structure, they are vertically locked together. The guide tube can be circumferentially rotated relative to the inlet pipe to unlock the rotation locking structure.

[0005] In a preferred embodiment: the rotating locking structure includes a locking block and a locking groove respectively disposed on the guide tube and the water inlet tube, the locking groove including a vertically extending relief portion and a locking portion extending circumferentially from the inner end of the relief portion.

[0006] In a preferred embodiment: the guide tube is inserted into the water inlet pipe, the locking block is disposed on the guide tube, and the locking groove is disposed on the water inlet pipe.

[0007] In a preferred embodiment: the number of card blocks is two and they are symmetrically arranged in the circumferential direction, and the number of card slots is two and they are symmetrically arranged in the circumferential direction.

[0008] In a preferred embodiment: the water outlet of the water guide channel is located at the bottom of the water guide seat, and the water outlet pipe is snapped together with the water guide seat.

[0009] In a preferred embodiment: the height of the rotating engagement structure is above the float of the inlet valve.

[0010] The toilet tank inlet valve quick-release structure includes a water guide seat, an inlet pipe, and an outlet pipe sleeved outside the inlet pipe. The inlet and outlet pipes are vertically arranged. The water guide seat has a water guiding channel. The inlet end of the water guiding channel is connected to the inlet pipe, and the outlet end is connected to the outlet pipe. The outlet pipe is connected to the water guide seat. The water guide seat has a downward-extending guide tube at the center of its bottom. The inner cavity of the guide tube is part of the water guiding channel. The guide tube is inserted into the inlet pipe. A rotating locking structure is provided between the guide tube and the inlet pipe. The rotating locking structure is a threaded connection structure.

[0011] In a preferred embodiment: the height of the rotating engagement structure is above the float of the inlet valve.

[0012] Compared with the prior art, this technical solution has the following advantages:

[0013] 1. A rotating locking structure is installed between the guide tube and the inlet pipe of the water guide seat. During disassembly, simply rotating the water guide seat unlocks the rotating locking structure, allowing the water guide seat and outlet pipe to be removed together. Conversely, during assembly, simply connect the water guide pipe to the inlet pipe and then rotate the water guide seat in the opposite direction. Therefore, although the rotating locking structure is located entirely inside the outlet pipe, unlocking and locking the rotating locking structure are performed from above, without needing to insert into the water tank, making disassembly and assembly very convenient and quick.

[0014] 2. The height of the rotating locking structure is above the float of the inlet valve. Since the liquid level in the water tank is below the float, the rotating locking structure is far from the water surface, thus avoiding jamming when submerged in water, and solving the second technical problem mentioned in the background. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 A three-dimensional schematic diagram of the toilet tank inlet valve is shown.

[0017] Figure 2 It is illustrated Figure 1The diagram shows a cross-sectional view of the toilet tank inlet valve.

[0018] Figure 3 It is illustrated Figure 1 Another cross-sectional view of the toilet tank inlet valve is shown.

[0019] Figure 4 It is illustrated Figure 1 The diagram shows a three-dimensional representation of the guide seat for the toilet tank inlet valve.

[0020] Figure 5 It is illustrated Figure 1 The diagram shows a 3D view of the inlet pipe of the toilet tank inlet valve.

[0021] Figure 6 It is illustrated Figure 1 An enlarged view of point A in the diagram. Detailed Implementation

[0022] Please refer to Figures 1 to 6The toilet tank inlet valve quick-release structure includes a water guide seat 10, an inlet pipe 20, and an outlet pipe 30 sleeved outside the inlet pipe. The inlet and outlet pipes are vertically arranged. The water guide seat 10 has a water guide channel 12, the inlet end of which connects to the inlet pipe 20, and the outlet end of which connects to the outlet pipe 30. Therefore, when the inlet valve is replenished, the water flows sequentially through the inlet pipe, the water guide channel, and the outlet pipe. The inlet valve also includes a back pressure switch 40 for cutting off or opening the water guide channel 12, and a float 50 linked to the back pressure switch, but these structures are existing structures and are not related to the technical problem to be solved by this invention, therefore they will not be described. The outlet pipe 30 is connected to the water guide seat 10. The water guide seat 10 has a downward-extending guide tube 14 at the center of its bottom. The inner cavity of the guide tube 14 is part of the water guide channel 12, meaning the guide tube is part of the water guide channel. The guide tube 14 is inserted into the inlet pipe 20. A rotating locking structure 60 is provided between the guide tube 14 and the inlet pipe 20. When the rotating locking structure 60 is engaged, the guide tube 14 and the inlet pipe 20 are vertically locked together, thus determining the position of the entire inlet valve when the inlet pipe 20 is installed and connected to the water tank. When it is necessary to separate the guide tube 14 from the inlet pipe 20, the water guide seat 10 is unscrewed, causing the guide tube 14 to rotate. The rotating locking structure 60 then switches to the unlocked state, at which point the guide tube 14 and the inlet pipe 20 are no longer vertically locked, allowing the guide tube to be separated from the inlet pipe. In other words, the rotational locking structure 60 between the guide tube 14 and the water inlet pipe 20 can lock or unlock by the relative rotation between the guide tube and the water inlet pipe. When locked, the guide tube and the water inlet pipe are locked vertically. When unlocked, they can be separated without restriction. That is to say, the rotational locking structure 60 can be unlocked by the circumferential rotation of the guide tube 14 relative to the water inlet pipe 20.

[0023] Preferably, the rotating engaging structure 62 includes a locking block 62 and a locking groove 64 respectively disposed on the guide pipe 14 and the water inlet pipe 20. The locking groove 64 includes a vertically extending clearance portion 622 and a locking portion 624 extending circumferentially from the inner end of the clearance portion. When locking, the locking block 62 enters the inner end of the clearance portion 622 axially, and then can rotate circumferentially into the locking portion 624, so that the locking block 62 can engage with the locking portion 624 axially (i.e., vertically).

[0024] Preferably, the guide tube 14 is inserted into the water inlet pipe 20, the locking block 62 is disposed on the guide tube 14, and the locking groove 64 is disposed on the water inlet pipe 20.

[0025] Preferably, the number of the card blocks 62 is two and symmetrically arranged in the circumferential direction, and the number of the card slots 64 is two and symmetrically arranged in the circumferential direction.

[0026] Preferably, the water outlet of the water guide channel 12 is located at the bottom of the water guide seat 10, the water outlet of the water guide channel surrounds the periphery of the guide pipe 14, and the water outlet pipe 30 is snapped together with the water guide seat 10.

[0027] Preferably, the height of the rotating engagement structure 60 is above the inlet valve float 50.

[0028] Understandably, the rotary engagement structure 60 is used to lock or separate the guide tube 14 and the water inlet tube 20 in the vertical direction. Therefore, if the guide tube 14 and the water inlet tube 20 are provided with mutually compatible internal and external threads, they can also be connected or separated by relative rotation. Moreover, the threaded connection itself can only rotate and cannot move in the axial direction. Therefore, the rotary engagement structure can also be a threaded connection structure.

[0029] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A toilet tank fill valve quick disconnect structure, comprising a water guide seat, a water inlet pipe and a water outlet pipe sleeved outside the water inlet pipe, the water inlet pipe and the water outlet pipe are vertically arranged, the water guide seat is provided with a water guide channel, the water inlet end of the water guide channel is communicated with the water inlet pipe, the water outlet end is communicated with the water outlet pipe, and the water outlet pipe is connected with the water guide seat, characterized in that: The water guide base is provided with a downward extending guide pipe at the center of the bottom, the inner cavity of the guide pipe serves as a component of the water guide channel, the guide pipe is inserted into the water inlet pipe, a rotating clamping structure is arranged between the guide pipe and the water inlet pipe, the guide pipe and the water inlet pipe are clamped together vertically when the rotating clamping structure is clamped, and the rotating clamping structure is unlocked when the guide pipe rotates relative to the water inlet pipe.

2. The toilet tank fill valve quick disconnect structure of claim 1, wherein: The rotating clamping structure comprises clamping blocks and clamping grooves arranged on the guide pipe and the water inlet pipe respectively, the clamping groove comprises a vertical extension accommodating portion and a locking portion extending from the inner end of the accommodating portion.

3. The toilet tank fill valve quick disconnect structure of claim 2, wherein: The guide pipe is inserted into the water inlet pipe, the clamping blocks are arranged on the guide pipe, and the clamping grooves are arranged on the water inlet pipe.

4. The toilet tank fill valve quick disconnect structure of claim 2, wherein: The number of clamping blocks is two and they are arranged symmetrically in the circumferential direction, and the number of clamping grooves is two and they are arranged symmetrically in the circumferential direction.

5. The toilet tank fill valve quick disconnect structure of claim 1, wherein: The water outlet end of the water guide channel is located at the bottom of the water guide base, and the water outlet pipe is clamped together with the water guide base.

6. The toilet tank fill valve quick disconnect structure of any one of claims 1-5, wherein: The height of the rotating clamping structure is above the water inlet valve float bucket.

7. A toilet tank fill valve quick disconnect structure comprising a water guide seat, a water inlet pipe and a water outlet pipe sleeved outside the water inlet pipe, the water inlet pipe and the water outlet pipe being arranged vertically, the water guide seat being provided with a water guide channel, a water inlet end of the water guide channel being communicated with the water inlet pipe and a water outlet end of the water guide channel being communicated with the water outlet pipe, the water outlet pipe being connected with the water guide seat, characterized in that: The water guide base is provided with a downward extending guide pipe at the center of the bottom, the inner cavity of the guide pipe serves as a component of the water guide channel, the guide pipe is inserted into the water inlet pipe, a rotating clamping structure is arranged between the guide pipe and the water inlet pipe, and the rotating clamping structure is a threaded connection structure.

8. The toilet tank fill valve quick disconnect structure of claim 7, wherein: The height of the rotating clamping structure is above the water inlet valve float bucket.

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