Easily assembled and disassembled structure for water inlet valve filter

Abstract

An insertion opening is formed in the top of a water inlet valve, the filter is inserted from the insertion opening and is disassembled, the filter is provided with a filtering column and a lock catch, kidney-shaped holes are formed in the two sides of the upper end of the filtering column, the lock catch is provided with a pin shaft capable of sliding along the kidney-shaped holes, and clamping blocks are arranged on the two sides of the lock catch. A top cover is connected to the upper portion of the insertion opening and provided with a check ring capable of being buckled with the clamping block, the upper end of the water inlet valve is covered with an upper cover, and the upper cover is provided with a concave portion allowing the lock catch to be pulled out. When the lock catch is pushed forwards, the clamping block is buckled with the check ring to lock the filter; when the lock catch is pulled out backwards, the clamping block is separated from the check ring, so that the filter is unlocked; and by turning over the lock catch, the filter is unloaded after the lock catch axially rotates around the pin shaft of the lock catch. The device has the advantages of simple structure and convenience in disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to an easy-to-disassemble structure for an inlet valve filter. Background Art

[0002] Chinese patent CN207777765U discloses an improved, easily detachable filter structure for water tank inlet valves. Symmetrical locking blocks and connecting holes are located on both sides of the upper end of the filter plug. A handle is movably connected to the connecting hole, employing a straight-through insertion and rotational locking connection method, making operation simpler and the structure more economical. The handle is movably connected to the upper end of the filter plug; during operation, simply flipping the handle allows the filter plug to be pulled out of the opening. Under normal use, the handle can be stored in the recessed surface on the side of the opening. Although this structure is simple and the rotational locking for disassembly and assembly is reasonable, this structure has already been patented. Therefore, it is necessary for the applicant to design an easily detachable filter structure for water inlet valves that differs from this patented structure. Summary of the Invention

[0003] The purpose of this utility model is to address the above-mentioned problems by providing a simple and easy-to-disassemble structure for an inlet valve filter.

[0004] The purpose of this utility model is achieved as follows: an easy-to-disassemble structure for a water inlet valve filter. The water inlet valve has an insertion port at the top. The filter is inserted into the insertion port and then disassembled. The filter has a filter column and a latch. The upper end of the filter column has waist-shaped holes on both sides. The latch has a pin that can slide along the waist-shaped holes. There are locking blocks on both sides of the latch. A top cover is connected above the insertion port. The top cover has a retaining ring that can lock the locking blocks. An upper cover is placed on the upper end of the water inlet valve. The upper cover has a recessed part to accommodate the latch being pulled out. When the latch is pushed forward, the locking blocks and the retaining ring are engaged to lock the filter. When the latch is pulled backward, the locking blocks disengage from the retaining ring to unlock the filter. By flipping the latch, the latch rotates axially around its pin to remove the filter.

[0005] In this utility model, the filter column is connected to a locking seat, and the locking seat is provided with a U-shaped shoulder. The U-shaped shoulder of the locking seat and the U-shaped shoulder provided at the upper end of the filter column are connected to form a waist-shaped hole, so that the pin integrally formed on the locking can enter from the U-shaped shoulder of the filter column in advance to assemble the filter.

[0006] In this invention, a slot corresponding to two positions of the switch is provided on the lower side of the latch. When the latch is pushed or pulled, the slots of the two positions slide and engage with the protrusions provided on the top cover to limit the two actions of the latch's opening and closing.

[0007] The present invention provides a filter column comprising a grid and a filter cover integrally formed on a filter column substrate. The grid is obliquely arranged in a suspended stepped shape facing the water inlet direction, and the filter cover is a conical column that gradually increases in size radially downwards.

[0008] In this invention, a protrusion is provided on the outer front end of the locking seat. The filter is positioned and assembled by aligning the protrusion with the positioning groove provided on the top cover.

[0009] In this invention, a third locking block is provided at the front end of the latch that can be matched with the retaining ring. The third locking block and the locking blocks on both sides of the latch together with the retaining ring form a stable structure of three latches.

[0010] This utility model has the following positive effects: The push-pull locking mechanism for assembling and disassembling the filter is more in line with traditional practices; the waist-shaped hole for the locking mechanism to slide through is connected by two U-shaped shoulders, facilitating locking installation; the dual-stage filter elements on the filter column are integrally molded, resulting in a simple structure that requires no assembly; the first stage filter is a filter hood, shaped like a conical column that gradually increases radially downwards, effectively filtering and easy to clean; the second stage filter is a grille, obliquely positioned facing the water inlet in a suspended, stepped shape, also effectively filtering and easy to clean; compared with similar products, the filtration effect is better because it can be cleaned frequently and is less prone to clogging.

[0011] The following embodiments, in conjunction with the accompanying drawings, further illustrate the present invention. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of one embodiment of the present utility model;

[0013] Figure 2 yes Figure 1 Top view of the embodiment;

[0014] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure shown in section AA;

[0015] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the structure shown in Figure AA.

[0016] Figure 5 yes Figure 2 A three-dimensional structural schematic diagram of BB cross-section shown;

[0017] Figure 6 yes Figure 1 A three-dimensional structural diagram of the filter in the embodiment;

[0018] Figure 7 yes Figure 1 A schematic diagram of the component three-dimensional structure of the filter in the embodiment;

[0019] Figure 8 yes Figure 1 A three-dimensional structural diagram of the filter installed on the top cover of the insertion port;

[0020] Figure 9 This is a three-dimensional structural diagram of the top cover located at the insertion port;

[0021] Figure 10 yes Figure 1 A three-dimensional structural diagram of the filter in the unloaded state of the embodiment;

[0022] Figure 11 yes Figure 10 Enlarged 3D structural diagram of the filter;

[0023] Figure 12 yes Figure 1 The embodiment shows a three-dimensional structural diagram of the filter in different states from locked to open and pulled out.

[0024] In the diagram, 1 is the insertion port; 2 is the filter column; 3 is the latch; 4 is the waist-shaped hole; 5 is the pin; 6 is the locking block; 7 is the top cover; 8 is the retaining ring; 9 is the upper cover; 10 is the recess; 11 is the latch seat; 12 is the slot; 13 is the protrusion; 14 is the filter column base plate; 15 is the fence; 16 is the filter cover; 17 is the protrusion; and 18 is the positioning groove. DETAILED DESCRIPTION

[0025] Reference Figures 1 to 12 This embodiment describes an easy-to-disassemble structure for an inlet valve filter. The inlet valve has an insertion port 1 at its top. The filter is inserted through the insertion port and then disassembled. The filter includes a filter column 2 and a locking buckle 3. The filter column includes a grid 15 and a filter cover 16 integrally formed on a filter column base plate 14. The grid is obliquely arranged in a suspended stepped shape facing the water inlet direction. The filter cover is conical and gradually increases in size radially downwards. The upper end of the filter column has waist-shaped holes 4 on both sides. The filter column is connected to a locking buckle seat 11. The locking buckle seat has a U-shaped shoulder. The U-shaped shoulder of the locking buckle seat and the U-shaped shoulder at the upper end of the filter column form a waist-shaped hole, allowing the pin integrally formed on the locking buckle to enter from the U-shaped shoulder of the filter column before assembly. The filter has a locking mechanism with a pin 5 that slides along a waist-shaped hole, and locking blocks 6 on both sides. A top cover 7 is connected above the insertion port, and the top cover has a retaining ring 8 that can engage with the locking blocks. An upper cover 9 covers the upper end of the water inlet valve, and the upper cover has a recess 10 for accommodating the pull-out of the locking mechanism. A slot 12 corresponding to two positions of the switch is provided on the lower side of the locking mechanism. When the locking mechanism is pushed or pulled, the slots of the two positions slide and engage with the protrusions 13 on the top cover to limit the two opening and closing actions of the locking mechanism. When the locking mechanism is pushed forward, the locking blocks engage with the retaining ring to lock the filter. When the locking mechanism is pulled backward, the locking blocks disengage from the retaining ring to unlock the filter. By flipping the locking mechanism, the filter can be removed after the locking mechanism rotates axially around its pin.

[0026] In this utility model, a protrusion 17 is provided on the outer front end of the locking seat. The filter is positioned and assembled by aligning the protrusion with the positioning groove 18 provided on the top cover.

[0027] In this invention, a third locking block is provided at the front end of the latch that can be matched with the retaining ring. The third locking block and the locking blocks on both sides of the latch together with the retaining ring form a stable structure of three latches.

[0028] For ease of explanation, this utility model... Figure 6 , Figure 7 , Figure 10 , Figure 11 and Figure 12 Structural diagram; the filter column is not fitted with a sealing ring.

[0029] In this invention, the gap between the bars of the filter cover is approximately twice the gap between the bars of the fence, thereby achieving a step-by-step filtration effect and preventing clogging.

[0030] When this utility model is working, the first stage of filtration is a filter hood, which mainly performs coarse filtration, and larger filter objects are blocked by the conical hood; the second stage of filtration is a grid, which mainly performs fine filtration, and small filter objects are hooked by the suspended stepped comb teeth. It is very convenient to clean the filter objects on the comb teeth. Through the two-stage filtration, the filter objects are less likely to be clogged than the traditional single-stage filter grid, and the filtration effect is better.

[0031] The installation and disassembly of this utility model are described in reference to... Figure 12 As shown, insert the filter column into the insertion port, push in the latch, and push the locking block into the retaining ring of the top cover to form a latching connection; conversely, pull the latch out backward, the locking block disengages from the retaining ring, the locking block is released from the retaining ring, and by flipping the latch, the latch rotates axially around its pin to remove the filter.

[0032] In this invention, a corresponding locking groove on the lower side of the latch engages with a protrusion on the top cover, making the latch more secure when locked.

Claims

1. A disassembly and assembly structure for a water inlet valve filter, wherein the water inlet valve has an insertion port (1) at the top of the valve, and the filter is inserted into and disassembled through the insertion port, characterized in that: The filter is provided with a filter column (2) and a latch (3). The upper end of the filter column is provided with waist-shaped holes (4) on both sides. The latch is provided with a pin (5) that can slide along the waist-shaped holes. The latch is provided with a locking block (6) on both sides. A top cover (7) is connected above the insertion port. The top cover is provided with a retaining ring (8) that can lock the locking block. An upper cover (9) is provided on the upper end of the water inlet valve. The upper cover is provided with a recess (10) to accommodate the latch being pulled out. When the latch is pushed forward, the locking block and the retaining ring are locked together, thus locking the filter. When the latch is pulled back, the locking block and the retaining ring are disengaged, thus unlocking the filter. By flipping the latch, the latch rotates axially around its pin and the filter is removed.

2. The easy-to-disassemble structure for an inlet valve filter according to claim 1, characterized in that: The filter column is connected to a locking seat (11), which has a U-shaped shoulder. The U-shaped shoulder of the locking seat and the U-shaped shoulder at the upper end of the filter column are connected to form the waist-shaped hole, so that the pin integrally formed on the locking can enter from the U-shaped shoulder of the filter column in advance to assemble the filter.

3. The easy-to-disassemble structure for an inlet valve filter according to claim 1, characterized in that: The lower side of the latch is provided with a slot (12) corresponding to two positions of the switch. When the latch is pushed or pulled, the slots of the two positions slide and engage with the protrusion (13) provided on the top cover to limit the two actions of the latch.

4. The easy-to-disassemble structure for an inlet valve filter according to claim 1, characterized in that: The filter column includes a grid (15) and a filter cover (16) integrally formed on the filter column substrate (14). The grid is obliquely arranged in a suspended ladder shape facing the water inlet direction, and the filter cover is a conical column shape that gradually increases in size radially downwards.

5. The easy-to-disassemble structure for an inlet valve filter according to claim 2, characterized in that: A protrusion (17) is provided on the outer front end of the locking seat. The filter is positioned and assembled by aligning the protrusion with the positioning groove (18) provided on the top cover.

6. The easy-to-disassemble structure for an inlet valve filter according to claim 1, characterized in that: A third locking block is provided at the front end of the latch, which can be matched with the retaining ring. The third locking block and the locking blocks on both sides of the latch together with the retaining ring form a stable structure of three locking blocks.

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