CN220328143U - Clamping device for filter element - Google Patents

Abstract

The utility model relates to a clamping device for a filter element, which has the technical scheme that: comprising the following steps: the filter comprises a bracket, a filter element, a bearing mechanism for bearing the filter element and at least one ratchet clamping mechanism for limiting the working position of the filter element; one end of the bearing mechanism is detachably connected with the filter element, and the other end of the bearing mechanism is connected with the bracket; one end of the ratchet clamping mechanism is movably arranged on the bracket, and the other end of the ratchet clamping mechanism is abutted with the supporting mechanism; the filter element clamping device has the advantages of being capable of stably clamping the filter element and being convenient and labor-saving to assemble and disassemble.

Description

Clamping device for filter element

Technical Field

The utility model relates to the technical field of water purifying equipment, in particular to a clamping device for a filter element.

Background

The filter element is used as an indispensable component in the water purifier and is used for removing solid particles in water, killing bacteria and filtering out harmful chemical components so that the water reaches a certain cleanliness; at present, the water purifier filter element in the market has various installation forms, and the filter element is mainly fixed in the form of a quick-release connector and an installation seat in the early stage.

The existing water purifier generally adopts a clamped filter element connection mode, the filter element is firstly assembled into the adapter, and then the filter element is rotated, however, the filter element replacement method needs to overcome the friction force of the sealing ring, and the friction force between the sealing ring, the ribs and the adapter during rotation, so that the user is more laborious in the process of replacing the filter element, and the operation is more complex, and therefore, the filter element replacement method needs to be improved.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the clamping device for the filter element, which has the advantages of being capable of stably clamping the filter element and convenient and labor-saving to assemble and disassemble.

The technical aim of the utility model is realized by the following technical scheme: a clamping device for a filter cartridge, comprising: the filter comprises a bracket, a filter element, a bearing mechanism for bearing the filter element and at least one ratchet clamping mechanism for limiting the working position of the filter element; one end of the bearing mechanism is detachably connected with the filter element, and the other end of the bearing mechanism is connected with the bracket; one end of the ratchet clamping mechanism is movably arranged on the support, and the other end of the ratchet clamping mechanism is abutted to the supporting mechanism.

Optionally, the ratchet clamping mechanism includes: the filter element comprises a reset spring, a connecting shaft, a ratchet wheel assembly used for limiting the working position of the filter element and a sliding block capable of driving the ratchet wheel assembly to move; the ratchet wheel component is arranged on the sliding block; one end of the sliding block is movably arranged on the bracket, and the other end of the sliding block is abutted with the bearing mechanism; one end of the connecting shaft is arranged on the sliding block, and the other end of the connecting shaft is movably arranged on the bracket; a placing cavity capable of accommodating the reset spring is arranged on the sliding block; one end of the return spring is arranged in the placing cavity, and the other end of the return spring is abutted to the support.

Optionally, the bracket is provided with at least one limiting groove for the connecting shaft to pass through and move transversely in a certain range.

Optionally, the ratchet assembly includes: the pressing block and the ratchet wheel are used for limiting the working position of the filter element; the ratchet wheel is rotatably arranged on the sliding block; the pressing block is arranged on the sliding block; a plurality of pawls are movably arranged on the pressing block; and a ratchet wheel correspondingly matched with the pawl is arranged on the ratchet wheel.

Optionally, a cavity is arranged in the ratchet wheel; the pressing block is arranged in the cavity; the ratchet is disposed on an inner sidewall of the cavity.

Optionally, meshing teeth are arranged on the outer side of the ratchet wheel; the filter element is provided with a rack which is correspondingly adapted to the meshing teeth for meshing connection.

Optionally, the bearing mechanism includes: a buffer air needle and a push plate for receiving the filter element; one end of the buffer air needle is arranged on the bracket, and the other end of the buffer air needle is connected with the push plate; the filter element is detachably connected with the push plate.

Optionally, a first inclined plane is arranged at the upper end of the push plate; the lower end of the sliding block is provided with a second inclined plane correspondingly matched with the first inclined plane.

Optionally, the first inclined plane and the second inclined plane are both V-shaped cross sections.

In summary, the utility model has the following beneficial effects:

this application locks the filter core through ratchet chucking mechanism, is different from the filter core mounting means that needs rotatory screwing up among the prior art, and the filter core of this application can directly combine with bearing mechanism after direct manual downward pressing on the assigned position of support, and the filter core can't upwards take out at will when the spacing effect of ratchet chucking mechanism is installed, and installation stability is good and loading and unloading are convenient.

Drawings

FIG. 1 is a first schematic structural view (hidden bracket) of the present utility model;

FIG. 2 is a second schematic construction (with the cartridge hidden) of the present utility model;

FIG. 3 is a schematic view of the structure of the support mechanism of the present utility model;

FIG. 4 is a schematic cross-sectional view of the present utility model;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

FIG. 6 is a schematic view of the ratchet wheel of the present utility model;

fig. 7 is a schematic diagram of the motion state of the present utility model.

In the figure: 1. a bracket; 11. a limit groove; 2. a filter element; 3. a bearing mechanism; 31. a buffer air needle; 32. a push plate; 4. ratchet clamping mechanism; 41. a return spring; 42. a connecting shaft; 43. a ratchet assembly; 44. a slide block; 45. a placement cavity; 51. briquetting; 52. a ratchet wheel; 53. a pawl; 54. a ratchet; 55. a cavity; 61. meshing teeth; 62. a rack; 71. a first inclined surface; 72. and a second inclined plane.

Detailed Description

In order that the objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not to indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

The present utility model will be described in detail below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 7, the present utility model provides a clamping device for a filter cartridge, comprising: the filter element comprises a bracket 1, a filter element 2, a bearing mechanism 3 for bearing the filter element 2 and at least one ratchet clamping mechanism 4 for limiting the working position of the filter element 2; one end of the bearing mechanism 3 is detachably connected with the filter element 2, and the other end of the bearing mechanism 3 is connected with the bracket 1; one end of the ratchet clamping mechanism 4 is movably arranged on the bracket 1, and the other end of the ratchet clamping mechanism 4 is abutted to the supporting mechanism 3.

In the embodiment, two ratchet clamping mechanisms 4 are arranged, the two ratchet clamping mechanisms 4 are respectively positioned at two sides of the filter element 2 and can be abutted against the filter element 2, and under the action of the bearing mechanism 3, the two ratchet clamping mechanisms 4 can transversely reciprocate on the bracket 1; when the supporting mechanism 3 moves upwards, the two ratchet clamping mechanisms 4 are close to each other and can clamp the filter element 2 and prevent the filter element from being pulled upwards; when the filter element 2 is continuously pressed down and drives the bearing mechanism 3 to move down, the two ratchet clamping mechanisms 4 are mutually far away and can be separated from the filter element 2, and the filter element 2 can be freely pulled out;

the filter element 2 is locked through the ratchet clamping mechanism 4, and the filter element is different from a filter element installation mode in which rotation is needed to be screwed up in the prior art, the filter element 2 of the novel ratchet clamping mechanism is directly combined with the bearing mechanism 3 after being directly manually pressed downwards on the appointed position of the bracket 1, the filter element 2 cannot be pulled upwards at will when being installed under the limiting effect of the ratchet clamping mechanism 4, and the novel ratchet clamping mechanism is good in installation stability and convenient and labor-saving to assemble and disassemble.

Further, the ratchet chucking mechanism 4 includes: a return spring 41, a connecting shaft 42, a ratchet assembly 43 for limiting the working position of the filter element 2, and a sliding block 44 capable of driving the ratchet assembly 43 to move; the ratchet assembly 43 is mounted on the slider 44; one end of the sliding block 44 is movably arranged on the bracket 1, and the other end of the sliding block 44 is abutted with the bearing mechanism 3; one end of the connecting shaft 42 is mounted on the sliding block 44, and the other end of the connecting shaft 42 is movably arranged on the bracket 1; a placement cavity 45 for accommodating the return spring 41 is provided on the slider 44; one end of the return spring 41 is mounted in the placement cavity 45, and the other end of the return spring 41 abuts against the bracket 1.

In this embodiment, the sliding block 44 is movably disposed on the bracket 1, the sliding block 44 can move laterally on the bracket 1, the ratchet assembly 43 is mounted on the sliding block 44 through the connecting shaft 42, and the sliding block 44 can drive the ratchet assembly 43 to move laterally on the bracket 1; the two sides of the sliding block 44 are provided with a placing cavity 45, the reset spring 41 is arranged in the placing cavity 45, and the other end of the reset spring 41 is abutted against the bracket 1 (see fig. 1 and 3);

the ratchet clamping mechanism 4 has the following two operating states:

(1) when the filter element 2 is pressed down and is not contacted with the supporting mechanism 3, the bottom of the sliding block 44 is abutted with the supporting mechanism 3, the reset spring 41 is in a compressed state in the placing cavity 45, the sliding block 44 is in a locking position, and the ratchet wheel assemblies 43 on two sides are abutted with the filter element 2, so that the filter element 2 can only move downwards and cannot move upwards, and the extraction locking effect on the filter element 2 is achieved;

(2) after the filter element 2 is pressed down beyond a set distance (the filter element 2 cannot be pressed down continuously), the filter element 2 drives the supporting mechanism 3 to move downwards together, the bottom of the sliding block 44 is separated from the supporting mechanism 3, the reset spring 41 is in a relaxed state in the placing cavity 45 and elastically ejects the sliding block 44 for a distance (the ejection moving direction of the sliding block 44 is shown in fig. 2), the sliding block 44 is in an unlocking position, the ratchet wheel assemblies 43 at two sides are separated from the filter element 2, and therefore the filter element 2 can move upwards and be pulled away, and the pulling-out unlocking effect on the filter element 2 is achieved.

Further, at least one limiting groove 11 which can be penetrated by the connecting shaft 42 and transversely moved within a certain range is formed on the bracket 1.

In this embodiment, two limiting grooves 11 are formed at two symmetrical positions of the bracket 1, two ends of a connecting shaft 42 of the ratchet clamping mechanism 4 can respectively pass through the two limiting grooves 11 (see fig. 2), and the limiting grooves 11 play a role in limiting movement of the connecting shaft 42, so that the connecting shaft 42 can only move transversely within the length range of the limiting grooves 11, and therefore, the limiting guiding effect of the ratchet clamping mechanism 4 during movement is achieved through limiting of the connecting shaft 42.

Further, the ratchet assembly 43 includes: a pressing block 51 and a ratchet 52 for limiting the working position of the filter element 2; the ratchet wheel 52 is rotatably arranged on the sliding block 44; the pressing block 51 is mounted on the slider 44; a plurality of pawls 53 are movably arranged on the pressing block 51; a ratchet 54 corresponding to the pawl 53 is provided on the ratchet 52.

In this embodiment, the ratchet 52 is rotatably disposed on the slider 44 through the connecting shaft 42, the pressing block 51 is mounted on the slider 44, a plurality of pawls 53 are movably disposed on the pressing block 51, ratchet teeth 54 corresponding to the pawls 53 are disposed on the ratchet 52, and the ratchet 52 can only rotate in one direction under the limiting action of the pawls 53 (the rotation direction of the ratchet 52 is the same as the downward moving direction of the filter element 2, and the ratchet transmission principle is the prior art), so that when the ratchet 52 abuts against the filter element 2, the filter element 2 can only move downward, cannot move upward, and achieves the extraction locking effect on the filter element 2.

Further, a cavity 55 is provided in the ratchet 52; the pressing block 51 is arranged in the cavity 55; the ratchet teeth 54 are provided on the inner side wall of the cavity 55.

In the present embodiment, the ratchet 52 is provided with a cavity 55, and the size of the cavity 55 is larger than that of the pressing block 51, so that the pressing block 51 and the pawl 53 can be accommodated in the cavity 55 and the pawl 53 can move in a certain range; the ratchet teeth 54 are provided on the inner side wall of the cavity 55 so that the rotation direction of the ratchet 52 can be restricted when the pawls 53 are engaged with the ratchet teeth 54 (see fig. 4, 5 and 6); this design may reduce the footprint of the ratchet assembly 43.

Further, an engaging tooth 61 is provided on the outer side of the ratchet 52; a rack 62 is provided on the filter cartridge 2, which is adapted to be in meshing engagement with the meshing teeth 61.

In the embodiment, the outer side of the ratchet wheel 52 is provided with the meshing teeth 61, the bottom of the filter element 2 is provided with the racks 62, and the ratchet wheels 52 on two sides are in meshing connection with the racks 62 at the bottom of the filter element 2 through the meshing teeth 61 to achieve transmission, so that the ratchet wheel 52 can be driven to rotate when the filter element 2 is pressed down;

in addition, since the ratchet 52 can only rotate in one direction (see fig. 5), when the ratchet 52 is locked against the rack 62, the filter element 2 can only move downward but cannot move upward, so that the extraction locking effect of the ratchet assembly 43 on the filter element 2 is achieved.

Further, the supporting mechanism 3 includes: a buffer air needle 31 and a push plate 32 for receiving the filter element 2; one end of the buffer air needle is arranged on the bracket 1, and the other end of the buffer air needle 31 is connected with the push plate 32; the filter element 2 is detachably connected with the push plate 32.

In this embodiment, the buffer air needle 31 is mounted on the bracket 1, the output end of the buffer air needle 31 is connected with the push plate 32, and the buffer air needle 31 can give upward force to the push plate 32 to make the push plate 32 contact with the bottom of the sliding block 44;

in addition, the reset action of the buffer air needle 31 is slower, when the filter element 2 is pressed down and is taken out (at the moment, the push plate 32 is separated from the slide block 44), the push plate 32 is slowly reset under the rebound action of the buffer air needle 31, and the push plate 32 is driven to slowly contact (separate from and abut against) the slide blocks 44 at the two sides of the upper end during reset, so that the slide blocks 44 are driven to move towards the middle direction and reset; because the resetting action is slow, the closing movement speed of the sliding block 44 is slow, and the filter element 2 cannot be clamped when the filter element 2 is taken out.

Further, a first inclined surface 71 is provided at the upper end of the push plate 32; a second inclined surface 72 corresponding to the first inclined surface 71 is provided at the lower end of the slider 44. The first inclined surface 71 and the second inclined surface 72 are each V-shaped in cross section.

In this embodiment, the upper end of the push plate 32 is provided with a first inclined plane 71, the lower end of the slider 44 is provided with a second inclined plane 72, the shapes of the first inclined plane 71 and the second inclined plane 72 are correspondingly adapted, and both the first inclined plane 71 and the second inclined plane 72 are V-shaped cross sections (see fig. 3 and 7), and under the action of the first inclined plane 71 and the second inclined plane 72:

(1) when the push plate 32 moves upwards and is abutted with the sliding blocks 44, the sliding blocks 44 at two sides are close to the middle, the ratchet wheels 52 close to the two rear sides can be abutted with the filter element 2 pressed down (see fig. 7), and under the limit action of the pawl 53, the ratchet wheels 52 rotate in one direction to enable the filter element 2 not to be pulled out upwards, so that the effect of pulling out and locking the filter element 2 is achieved;

(2) the filter element 2 is continuously pressed down until the filter element 2 is not moved, the push plate 32 moves downwards together with the filter element 2 and is separated from the slide blocks 44, the slide blocks 44 at two sides move in the direction away from each other under the action of the reset spring 41, the ratchet wheel 52 is not abutted with the filter element 2, and the filter element 2 can be pulled out from the bracket 1, so that the pulling-out unlocking effect of the filter element 2 is achieved.

The clamping device for the filter element has the advantages of being capable of stably clamping the filter element and convenient and labor-saving to assemble and disassemble.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (9)

1. A clamping device for a filter cartridge, comprising: the filter comprises a bracket, a filter element, a bearing mechanism for bearing the filter element and at least one ratchet clamping mechanism for limiting the working position of the filter element;

one end of the bearing mechanism is detachably connected with the filter element, and the other end of the bearing mechanism is connected with the bracket; one end of the ratchet clamping mechanism is movably arranged on the support, and the other end of the ratchet clamping mechanism is abutted to the supporting mechanism.

2. A gripping device for a filter cartridge according to claim 1, wherein the ratchet gripping mechanism comprises: the filter element comprises a reset spring, a connecting shaft, a ratchet wheel assembly used for limiting the working position of the filter element and a sliding block capable of driving the ratchet wheel assembly to move;

the ratchet wheel component is arranged on the sliding block; one end of the sliding block is movably arranged on the bracket, and the other end of the sliding block is abutted with the bearing mechanism; one end of the connecting shaft is arranged on the sliding block, and the other end of the connecting shaft is movably arranged on the bracket;

a placing cavity capable of accommodating the reset spring is arranged on the sliding block; one end of the return spring is arranged in the placing cavity, and the other end of the return spring is abutted to the support.

3. The clamping device for a filter cartridge of claim 2, wherein the bracket is provided with at least one limiting groove through which the connecting shaft can pass and which can move laterally within a certain range.

4. A gripping apparatus for a filter cartridge according to claim 3 wherein the ratchet assembly comprises: the pressing block and the ratchet wheel are used for limiting the working position of the filter element; the ratchet wheel is rotatably arranged on the sliding block; the pressing block is arranged on the sliding block; a plurality of pawls are movably arranged on the pressing block; and a ratchet wheel correspondingly matched with the pawl is arranged on the ratchet wheel.

5. A gripping device for filter cartridges according to claim 4, wherein a cavity is provided in the ratchet wheel; the pressing block is arranged in the cavity; the ratchet is disposed on an inner sidewall of the cavity.

6. A gripping device for filter cartridges according to claim 5, wherein engagement teeth are provided on the outside of the ratchet wheel; the filter element is provided with a rack which is correspondingly adapted to the meshing teeth for meshing connection.

7. A gripping device for a filter cartridge according to any one of claims 2 to 6, wherein the support means comprises: a buffer air needle and a push plate for receiving the filter element; one end of the buffer air needle is arranged on the bracket, and the other end of the buffer air needle is connected with the push plate; the filter element is detachably connected with the push plate.

8. The clamping device for a filter cartridge of claim 7, wherein a first inclined surface is provided at an upper end of the push plate; the lower end of the sliding block is provided with a second inclined plane correspondingly matched with the first inclined plane.

9. A gripping apparatus for a filter cartridge according to claim 8, wherein the first and second inclined surfaces are each V-shaped in cross section.