Clamping mechanism of water purification filter element
By replacing the elastic structure with a guide structure and using a sliding groove and sliding column to guide the movement of the gripper, the problem of loosening of the water filter cartridge clamping mechanism is solved, and the precise positioning and stable installation of the gripper are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-10
AI Technical Summary
In existing water filter cartridge snap-fit mechanisms, the elastic structure of the spring leads to the risk of loosening, affecting the normal use and installation stability of the product.
A guide structure is used to replace the elastic opening and closing structure. The opening and closing motion of the gripper is guided by a rigid structural component. The gripper is precisely positioned by the cooperation of the sliding groove and the sliding column, thus avoiding deformation.
It achieves precise positioning of the gripper, prevents it from loosening, reduces the difficulty of production and processing, and expands the range of materials that can be selected.
Smart Images

Figure CN224100209U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water purifier filter element technical field, specifically related to a kind of water purification filter element's clamping mechanism. BACKGROUND
[0002] The prior art patent "a kind of water purification filter element's clamping mechanism" (patent No.2020203852790) discloses the main technical scheme as follows: by controlling the opening and closing of the gripper, the switching between the working state and the non-working state of the control device is realized; in the non-working state, the U-shaped rod is hooked at the C of the annular groove, at this time, the moving block is located in the box, and the lower half of the spring piece and the gripper is located in the box, at this time, the front and rear sides of the upper end opening of the box resist the gripper, so that the gripper is folded in the middle to a closed state, at this time, the spring piece is squeezed in the middle to clamp; in the working state, the U-shaped rod is hooked at the G of the annular groove, at this time, the moving block is located in the box, and the gripper is stretched out from the upper end of the box and located outside the box, at this time, the gripper on both sides is not squeezed in the middle, and the spring piece supports the gripper to open to both sides, in the patent technology, the opening and closing of the control gripper is driven by the elasticity of the spring piece, in the patent technology, the material and structure of the spring piece are difficult to process, and the opening and closing of the gripper is controlled by the elasticity of the spring piece, which may cause the spring piece to loosen due to its elastic properties, so that the product has certain defects, and the product may not be normally clamped during use, which may cause the product structure to loosen, in order to ensure the normal use of the product and avoid the loosening of the product during installation, the structure of the gripper part in the above-mentioned patent product is improved. SUMMARY
[0003] The utility model discloses a kind of clamping mechanisms of water purification filter element, it uses the guiding structure that does not occur deformation to replace existing elastic opening and closing structure, to realize the guiding of the opening and closing movement of clamping jaw, and each structure does not need to occur elastic deformation, to realize accurate positioning in the process of product clamping jaw movement by rigid structural member, and the structural member in the present scheme is rigid structure, and structure material selection range is wide and easy to process production.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] It contains cover, box, moving block, wherein the cover is integrally formed with clamping groove, the box is inserted in the cover, the outer wall of the box is integrally formed with clamping block, the clamping block is clamped in the clamping groove, the moving block is movably arranged in the box, the moving block is integrally formed with annular groove, the box is provided with fixed insertion hole, the U-shaped rod is inserted in the fixed insertion hole, the other end of the U-shaped rod is movably inserted in the annular groove, and it further comprises:
[0006] The two clamps are symmetrically arranged on the two sides of the moving block, and the clamp is inserted into the box through the moving block;
[0007] The convex block is integrally arranged on the two side walls of the moving block, and the square groove is integrally arranged on the clamp.
[0008] The two sliding columns are arranged in an upper and lower arrangement on the clamp, and the two groups of sliding columns are arranged on the two side edges of the clamp.
[0009] The two side plates of the box are provided with sliding grooves, and the two groups of sliding grooves are symmetrically arranged, and the two sliding grooves of one group are arranged in an inverted V shape, and the two groups of sliding columns on the same side edge are respectively arranged in the two sliding grooves.
[0010] Preferably, the side wall of the clamp is integrally provided with a lug, and the lug is arranged above the side edge of the side plate of the box.
[0011] Preferably, the inner wall of the box is integrally provided with a limiting block, and the box is slidably arranged through the limiting block and the moving block.
[0012] Preferably, the lower inner wall of the box is fixedly provided with a lower base, the moving block is fixedly provided with an upper base, the spring is sleeved on the lower base, and the upper end of the spring is sleeved on the upper base.
[0013] Compared with the prior art, the beneficial effects of the present application are:
[0014] The present application cancels the structure scheme of connecting the clamp and the moving block by using the elastic sheet in the prior art, and improves the use of the sliding groove arranged on the box and the sliding column arranged on the clamp to guide the clamp. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the present application.
[0016] Figure 2 It is a structural schematic diagram of the box.
[0017] Figure 3 It is a structural schematic diagram of the moving block.
[0018] Figure 4 is a structural schematic view of the mobile block being located at a high point.
[0019] Figure 5 is a cross-sectional structural view of the Figure 4 .
[0020] Figure 6 is a structural schematic view of the mobile block being located at a low point.
[0021] Figure 7 is a structural schematic view of the annular groove.
[0022] BRIEF DESCRIPTION OF DRAWINGS
[0023] Cover 1, box 2, mobile block 3, clamping groove 4, clamping block 5, annular groove 6, fixed jack 7, U-shaped rod 8, grab 9, protruding block 10, square groove 11, sliding column 12, sliding slot 13, lug 14, limit block 15, lower base 16, upper base 17, spring 18. DETAILED DESCRIPTION
[0024] The technical solutions in the utility model will be described clearly and completely below with reference to the drawings. The preferred embodiments described in the description are only for example. All other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0025] As shown in Figures 1-7 , the specific embodiment adopts the following technical solutions:
[0026] The specific embodiment comprises a cover 1, a box 2, a mobile block 3 and a grab 9. The cover 1 is integrally provided with a clamping groove 4. An inner wall of the cover 1 is integrally provided with a mounting position. An outer side wall of the box 2 is integrally provided with a clamping block 5 at the upper end. An inner wall of the box 2 is integrally provided with a limit block 15. Both side walls of the box 2, on which the clamping block 5 is arranged, are provided with sliding slots 13. The two sliding slots 13 are arranged in a group and in an inverted V shape, that is, the upper ends of the two sliding slots 13 are open and the spacing of the upper ends is smaller than that of the lower ends. The box 2 is integrally provided with a fixed jack 7. A lower inner wall of the box 2 is integrally provided with a lower base 16. The mobile block 3 is integrally provided with a protruding block 10. One side wall of the mobile block 3 is provided with an annular groove 6. The annular groove 6 is a special inclined surface structure with one-way guidance. The box 2 and the mobile block 3 are further provided with a U-shaped rod 8 for connection. The mobile block 3 is integrally provided with an upper base 17. The lower base 16 and the upper base 17 are further provided with a spring 18 for cooperation. The grab 9 is provided with a square groove 11. A side edge of the grab 9 is integrally provided with a sliding column 12. The two sliding columns 12 are arranged in a group in an up-down arrangement. A side wall of the grab 9 is integrally provided with a lug 14. The grab 9 is provided with a hanging hole position above the lug 14.
[0027] During assembly of this device, spring 18 is fitted onto lower base 16, and gripper 9 is fitted onto protrusion 10 on movable block 3 via square groove 11. The side of protrusion 10 with annular groove 6 faces the side of housing 2 with fixing insertion hole 7. Movable block 3 is then inserted into housing 2, where limiting block 15 guides movable block 3 and gripper 9. As gripper 9 follows movable block 3 into housing 2, sliding post 12 on gripper 9 slides into sliding groove 13 on housing 2. During the insertion of movable block 3 into housing 2, upper end of spring 18 is fitted onto upper base 17. After the movable block 3 is inserted into the box 2, the U-shaped rod 8 is inserted into the fixed insertion hole 7, and the upper end of the U-shaped rod 8 is hung in the annular groove 6 on the movable block 3. Then, the box 2 is inserted into the mounting position on the cover 1, and the locking block 5 on the box 2 is engaged with the locking groove 4 on the cover 1 to complete the overall installation. At this time, the box 2 is set on the cover 1 and is locked by the locking groove 4 and the locking block 5 to prevent it from falling off. The U-shaped rod 8 is clamped between the cover 1 and the box 2 to prevent it from falling off. At the same time, the gripper 9 is clamped between the movable block 3 and the box 2 to prevent it from falling off. The spring 18 always keeps pressing against the movable block 3 upward and tight.
[0028] The working principle of this specific embodiment is as follows: by controlling the opening and closing of the gripper 9, the installation and disassembly of the component to be connected are realized; during installation, the U-shaped rod 8 hooks at point C of the annular groove 6, at which time the moving block 3 is located at the bottom point of the box ( Figure 6 As shown), the upper end of the gripper 9 closes towards the middle to form a closed state; the cover 1 is pushed upward to drive the box 2, the moving block 3, and the gripper 9 to move. When the part to be connected touches the lug 14 of the gripper 9, the cover 1 is continuously pushed, and the gripper 9 drives the moving block 3 to move downward inside the box 2. The upper end of the U-shaped rod 8 disengages from point C of the annular groove 6 and moves to point D of the annular groove 6. The cover 1 is pushed upward again, and the upper end of the U-shaped rod 8 slides on the DE inclined surface of the annular groove 6 to point E of the annular groove 6. The upward pushing force on the cover 1 is stopped. Under the action of the spring 18, the cover 1 and the box 2 begin to move downward. The upper end of the U-shaped rod 8 slides to point G of the annular groove 6. At this time, the moving block 3 is located at the high point of the box ( Figure 4 As shown), the upper end of the gripper 9 is in the open state, and a hook is provided above the lug 14 to attach to the part to be connected, thus completing the installation; during disassembly, push the cover 1 upward to move the box 2, the upper end of the U-shaped rod 8 disengages from point G of the annular groove 6, contacts point F and slides upward along the right slope to point I of the annular groove 6, stop applying upward pushing force to the cover 1, under the action of the spring 18, the cover 1 and the box 2 begin to move downward, the upper end of the U-shaped rod 8 falls into point H of the annular groove 6 and slides along the HC slope to point C of the annular groove 6, the upper end of the gripper 9 closes to the middle to form a closed gripper 9, and the gripper 9 disengages from the part to be connected.
[0029] Compared with the prior art, the beneficial effects of this utility model are:
[0030] 1、The device adopts two clamps 9 arranged on both sides of the moving block 3 and connected with the moving block 3 to realize synchronous movement, a reverse V-shaped sliding groove 13 is arranged on the box 2 and cooperates with the sliding column 12 on the clamp 9 to realize the guidance of the clamp 9, so that through the reciprocating movement of the moving block 3 between the high point and the low point, the opening and closing of the clamp 9 is realized, so that the clamp 9 is hung on the to-be-connected component after being opened, and the clamp 9 is separated from the to-be-connected component after being closed, realizing the clamping and dismounting of the device;
[0031] 2、The device is provided with the clamp 9 and guided by the structure of the sliding groove 13 and the sliding column 12, so that the clamp 9 moves and opens and closes through the sliding guiding structure, instead of through the deformation of the clamp 9, so that the clamp 9 is more accurately positioned, and the phenomenon of loosening does not occur when the clamp 9 is clamped with the to-be-connected component.
[0032] For those skilled in the art, the technical solutions described in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A clamping mechanism of a water purification filter element, comprising a cover (1), a box (2) and a moving block (3), wherein the cover (1) is integrally formed with a clamping groove (4), the box (2) is inserted into the cover (1), the outer side wall of the box (2) is integrally formed with a clamping block (5), the clamping block (5) is clamped in the clamping groove (4), the moving block (3) is movably arranged in the box (2), the moving block (3) is integrally formed with an annular groove (6), the box (2) is provided with a fixed insertion hole (7), a U-shaped rod (8) is inserted into the fixed insertion hole (7), and the other end of the U-shaped rod (8) is movably inserted into the annular groove (6); characterized in that, It also contains: The grab (9) is two and symmetrically arranged on both sides of the moving block (3), and the grab (9) is inserted into the box (2) in cooperation with the moving block (3); The protrusion (10) is integrally formed on the two side walls of the moving block (3), and the grab (9) is integrally formed with a square groove (11) on the grab (9), and the grab (9) is sleeved on the protrusion (10) through the square groove (11); The sliding column (12) is arranged in an upper and lower arrangement on the grab (9), and the sliding column (12) is arranged on the two side edges of the grab (9); The two side plates of the box (2) are provided with sliding grooves (13), and the two sliding grooves (13) are symmetrically arranged in a group, and the two sliding grooves (13) in a group are arranged in an inverted V shape, and the two sliding columns (12) on the same side edge of the two grabs (9) are respectively arranged in the two sliding grooves (13) in a group.
2. The catch mechanism of a water filter cartridge according to claim 1, wherein: The side wall of the grab (9) is integrally provided with a lug (14), and the lug (14) is arranged above the upper side edge of the side plate of the box (2).
3. The catch mechanism of a water filter cartridge according to claim 1, wherein: The inner wall of the box (2) is integrally provided with a limiting block (15), and the box (2) is slidably arranged with the moving block (3) through the limiting block (15).
4. The catch mechanism of a water filter cartridge according to claim 1, wherein: The lower inner wall of the box (2) is fixedly provided with a lower base (16), and the moving block (3) is fixedly provided with an upper base (17), the spring (18) is sleeved on the lower base (16), and the upper end of the spring (18) is sleeved on the upper base (17).