Lifting linkage locking structure and filter element assembling system

Abstract

The utility model provides a lifting linkage locking structure which comprises a cover base body, an upper cover piece is movably connected to the cover base body, and a lifting handle assembly is rotationally connected to the upper cover piece. Locking blocks on the two sides are arranged in the cover base body corresponding to locking openings in the two ends in a penetrating mode, the handle assembly comprises a connecting rotating shaft connected to the upper cover piece in a penetrating mode, the end of the connecting rotating shaft is connected with a handle part, the peripheral side of the connecting rotating shaft is provided with a pushing and pressing block in a radial extending mode, and a bearing block is arranged in the cover base body; the pushing and pressing block is in contact fit with the bearing block; the locking blocks on the two sides are connected with an elastic assembly. Traction blocks are rotationally connected to the two ends of the interior of the upper cover part, and one ends of the traction blocks on the two sides are buckled with the locking blocks on the two sides. According to the lifting linkage locking structure, when force is applied to the lifting handle assembly for extraction, the upper cover piece of the lifting handle assembly is lifted in a linkage mode, the movable action of the locking blocks on the two sides is achieved, and the application requirement for unlocking of a filter element structure in a filter element assembling and connecting system applying the lifting linkage locking structure is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter core installation technical field, concretely relates to a kind of lock connection structure and filter core system of installation of lifting linkage. BACKGROUND

[0002] Water purifying device generally includes filter core assembly and machine body, filter core assembly is installed in machine body and is butted with waterway board, to make filter core assembly can normally implement filtering function. The filtering capacity of filter core assembly will decrease with the increase of use time, so it needs to be replaced after being used for a period of time. Based on this, detachable connection is generally used between filter core assembly and machine body. The mode of screwing along the axial direction of filter core assembly and buckling cooperation can quickly realize disassembly and assembly, but there is the risk that filter core assembly is easily abnormally dropped. Therefore, lifting handle can be provided on filter core assembly, and the structure on machine body or waterway board is cooperated by using lifting handle, so that lifting handle can be limited by locking device when being rotated to appropriate position, to ensure that filter core assembly is reliably assembled in machine body. However, this will lead to that the overall structure of filter core assembly is relatively complex, and the cost of disassembling and replacing filter core is relatively high.

[0003] Prior art disclosure documents, such as CN219502172U, have the structure setting scheme that sliding block is retracted and extended through lifting handle structure linkage, to control filter core structure locking and unlocking. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of lock connection structure and filter core system of installation of lifting linkage to overcome the deficiencies of prior art.

[0005] The lock joint structure of the lifting linkage comprises a cover base body, a cover piece movably connected to the upper side of the cover base body, and a handle assembly rotatably connected to the cover piece. The cover base body is provided with lock joint openings on the outer circumferential side of the lower part of both ends. Two lock blocks are provided in the cover base body and correspond to the lock joint openings of both ends. The handle assembly comprises a connecting shaft penetrating the cover piece, a handle part connected to the end of the connecting shaft, and a push block radially extending on the outer circumferential side of the connecting shaft. A supporting block is provided in the cover base body and in contact with the push block. The lock blocks of both sides are connected to elastic components. The inner part of the cover piece is rotatably connected to traction blocks, and one end of the traction blocks of both sides is buckled to the lock blocks of both sides. When the handle part is rotated and in the first application position by force, the push block rotates around the connecting shaft and pushes the supporting block. The cover piece moves upward with the push of the push block. The upward moving cover piece pulls the traction blocks of both sides to drive the lock blocks of both sides to retract into the cover base body through the lock joint openings. The elastic components have elastic potential energy. When the force on the handle part is removed, the elastic components release the elastic potential energy. The lock blocks of both sides extend outside the cover base body. The traction blocks of both sides pull the cover piece downward to link the push block to drive the connecting shaft to rotate, so that the handle part is in the second application position.

[0006] The application principle is as follows:

[0007] The state of the handle part being lifted due to force is the first application state. When the handle part is lifted by force, the cover piece moves upward, and the traction blocks of both sides pull the lock blocks of both sides to retract into the cover base body through the lock joint openings. The structure of lifting the handle assembly to retract the lock blocks of both sides into the cover base body is achieved, thereby meeting the application of unlocking the filter core structure.

[0008] Further, the lock blocks comprise lock latches retracting in the lock joint openings. The lock latches are provided with lock linkage blocks towards the inside of the cover base body. The lock linkage blocks are provided with linkage holes. One end of the traction blocks is inserted into the linkage holes.

[0009] Further, the elastic components are provided between the lock linkage blocks of both sides. One side of the lock linkage blocks is provided with a linkage shaft, and the other side of the lock linkage blocks is provided with a linkage cylinder. The linkage cylinder is sleeved on the linkage shaft. The elastic components comprise springs. The springs are sleeved on the linkage shaft and the linkage cylinder in penetration cooperation. One end of the spring is connected to one side of the lock linkage blocks, and the other end of the spring is connected to the other side of the lock linkage blocks.

[0010] Further, the supporting blocks are provided in two groups. The two groups of supporting blocks are symmetrically arranged along the arrangement of the lock blocks of both sides. The elastic components are connected to the lock linkage blocks of both sides through the supporting blocks of both sides.

[0011] Further, two ends of the upper side of the traction block are provided with traction rotating shafts to be rotatably connected into the buckle holes in the interior of the upper cover member, and the lower side of the traction block is provided with buckling members buckled on the linkage holes.

[0012] Further, the abutting members are arranged at the positions corresponding to the locking opening positions on the two sides of the cover base, and when the two locking blocks extend out of the cover base, the two abutting members abut against the side of the traction block close to the locking opening position, thereby limiting the traction block.

[0013] Further, the two locking opening positions are symmetrically arranged with respect to the cover base, and a guide plate is arranged on the cover base to guide the two locking blocks and move towards the positions corresponding to the locking opening positions.

[0014] The filter core attachment system comprises a rack and a filter core structure mounted on the rack, the filter core structure comprises a filter bottle body, and a filter cover is attached and arranged at the upper end of the filter bottle body, the filter cover is provided with the locking structure as described above, and the two locking blocks are in locking cooperation with the rack.

[0015] The filter core attachment system has the following beneficial effects:

[0016] The locking structure provided in the application can link the lifting of the upper cover member when the handle assembly is forced to be lifted, realize the movement of the two locking blocks, and meet the unlocking requirement of the filter core structure in the filter core attachment system. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 FIG. 3 is a sectional view of the locking structure of the application;

[0018] Fig. 2 FIG. 4 is a combined structure diagram of the locking structure of the application.

[0019] REFERENCE SIGNS:

[0020] cover base 1, movable opening 10, locking opening 11, supporting block 12, traction block 13, traction rotating shaft 131, buckling member 132, abutting member 14,

[0021] upper cover member 2, buckle hole 21,

[0022] handle assembly 3, connecting rotating shaft 31, handle part 32, pushing block 33,

[0023] locking block 4, locking tongue 41, locking linkage block 42, linkage hole 43, linkage shaft 44, linkage cylinder 45, elastic assembly 5. DETAILED DESCRIPTION

[0024] In order to make the technical scheme, the object and the advantages of the utility model more clearly, the following will be further explained and described by combining with the drawings and the embodiments.

[0025] The utility model discloses a filter core attachment system, it includes frame and installs filter core structure on the frame, the filter core structure includes filter bottle body, the filter bottle body upper end attachment sets up filter cover, the filter cover application sets up a lock structure.

[0026] As shown in the accompanying Figs. 1-2 The lock structure is a kind of pull linkage's lock structure, the lock structure includes cover base body 1, the upper side central of the cover base body 1 is equipped with movable opening 10, the movable opening 10 is movably connected with upper cover piece 2, the upper cover piece 2 is rotatably connected with handle assembly 3;The lower part of the cover base body 1 both ends outer circumferential side is provided with lock opening 11, the cover base body 1 is correspondingly provided with the lock block 4 of both sides in the both ends lock opening 11, the handle assembly 3 includes the connecting shaft 31 of being connected in the upper cover piece 2, the connecting shaft 31 end is connected with handle part 32, the connecting shaft 31 outer circumferential side is radially extended and is provided with push block 33, the cover base body 1 is provided with support block 12, the push block 33 and the support block 12 are in contact with each other;Both sides the lock block 4 is connected with elastic component 5;

[0027] The upper cover piece 2 is rotatably connected with traction block 13 in both ends, both sides the traction block 13 one end is buckled with both sides the lock block 4;

[0028] When exerting force to make the handle part 32 rotate and be in first application position, the push block 33 rotates around the connecting shaft 31 and pushes the support block 12, the upper cover piece 2 moves up with the push of push block 33, and the upper cover piece 2 moves up pulls both sides traction block 13 and drives both the lock block 4 to retract into the cover base body 1 through the lock opening 11;The elastic component 5 has elastic potential energy;

[0029] When the exertion of force to the handle part 32 is cancelled, the elastic component 5 releases elastic potential energy, both sides the lock block 4 extends from the cover base body 1, both sides traction block 13 pulls the upper cover piece 2 and moves down to link the push block 33 and drive the connecting shaft 31 to rotate, so that the handle part 32 is in second application position.

[0030] The specific structure of the lock structure is as follows:

[0031] Both sides lock opening 11 is symmetrically arranged relative to the cover base body 1;The cover base body 1 is provided with guide plate for guiding both sides the lock block 4 and moving towards the corresponding lock opening 11 position activity;The connecting shaft 31 of the handle part 32 is arranged and extends in the direction perpendicular to the arrangement straight line direction of both sides the lock opening 11 (lock block 4).

[0032] The lock block 4 comprises a lock bolt 41 telescoped in the lock opening 11, the lock bolt 41 is provided with a lock linkage block 42 towards the inside of the cover base 1, the lock linkage block 42 is provided with a linkage hole 43; the upper cover body is provided with a buckle hole 21 on the inside, the traction block 13 is provided with a traction rotating shaft 131 on the upper end to be rotatably connected to the buckle hole 21 in the inside of the upper cover 2, the lower side of the traction block 13 is provided with a buckle 132 to be buckled on the linkage hole 43.

[0033] The cover base 1 is provided with a stopper 14 corresponding to the positions of the lock openings 11 on both sides, when the lock blocks 4 on both sides are extended out of the cover base 1, the stoppers 14 on both sides are abutted to the side of the lock opening 11 towards the traction block 13 to limit the traction block 13.

[0034] As a preferred embodiment:

[0035] The supporting block 12 is provided with two groups, the two groups of supporting blocks 12 are symmetrically arranged along the linear extension of the lock blocks 4 on both sides; the push block 33 is symmetrically arranged on the outer periphery of the connecting rotating shaft 31 corresponding to the supporting blocks 12 on both sides.

[0036] The elastic assembly 5 is arranged between the lock linkage blocks 42 on both sides, one side of the lock linkage block 42 is provided with a linkage shaft 44, the other side of the lock linkage block 42 is provided with a linkage cylinder 45, the linkage cylinder 45 is sleeved on the linkage shaft 44; the elastic assembly 5 comprises a spring, the spring is sleeved on the linkage shaft 44 and the linkage cylinder 45 in cooperation, one end of the spring is connected to one side of the lock linkage block 42, the other end of the spring is connected to the other side of the lock linkage block 42. The elastic assembly 5, the linkage shaft 44 and the linkage sleeve are arranged between the supporting blocks 12 on both sides and connected to the lock linkage blocks 42 on both sides.

[0037] The traction block 13 is in a H-like shape, the traction block 13 is provided with a traction rotating shaft 131 on both sides of the upper end to be rotatably connected to the buckle hole 21 in the inside of the upper cover 2, the lower side of the traction block 13 is provided with a buckle 132 on both ends to be buckled on the linkage hole 43. The H-like traction block 13 is arranged symmetrically to the linear extension direction of the lock linkage blocks 42 on both sides.

[0038] The above only describes the preferred embodiments of the present application, and for those skilled in the art, the embodiments can be modified without departing from the principle of the present application, and the corresponding modification scheme should also be regarded as the protection scope of the present application.

Claims

1. A lock joint structure of a pull-up linkage, characterized by The application relates to a lock structure of a filter cover, which comprises a cover base, a cover piece movably connected to the upper side of the cover base, and a handle assembly rotatably connected to the cover piece; lock openings are arranged on the outer circumferential side of the lower part of the cover base; lock blocks are arranged in the cover base and correspond to the two ends of the lock openings; the handle assembly comprises a connecting shaft penetrating the cover piece, the end of the connecting shaft is connected to a handle part, a pushing block is arranged on the outer circumferential side of the connecting shaft and extends radially, a supporting block is arranged in the cover base, and the pushing block is in contact with the supporting block; the two lock blocks are connected to elastic assemblies. The two ends of the inner part of the cover piece are rotatably connected to traction blocks, and the one end of the two lock blocks is buckled to the two lock blocks. When the handle part is rotated and is in a first application position by force, the pushing block is rotated around the connecting shaft and pushes the supporting block, the cover piece moves upward along with the pushing of the pushing block, the upwardly moving cover piece drives the two lock blocks to retract into the cover base through the lock openings, and the elastic assemblies have elastic potential energy. When the force on the handle part is removed, the elastic assemblies release the elastic potential energy, the two lock blocks extend out of the cover base, the two traction blocks pull the cover piece to move downward, the pushing block drives the connecting shaft to rotate, and the handle part is in a second application position.

2. The lock joint structure of claim 1, wherein The lock block comprises a lock tongue which is retractable in the lock opening, the lock tongue is provided with a lock linkage block towards the inner side of the cover base, the lock linkage block is provided with a linkage hole, and the one end of the traction block is inserted into the linkage hole.

3. The lock joint of claim 2, wherein The elastic assemblies are arranged between the two lock linkage blocks, one side of the lock linkage block is provided with a linkage shaft, the other side of the lock linkage block is provided with a linkage cylinder, the linkage cylinder is sleeved on the linkage shaft, the elastic assemblies comprise springs, the springs are sleeved on the linkage shaft and the linkage cylinder in penetration cooperation, one end of the spring is connected to one side of the lock linkage block, and the other end of the spring is connected to the other side of the lock linkage block.

4. The lock joint of claim 3, wherein The supporting blocks are arranged in two groups, the two groups of the supporting blocks are symmetrically arranged along the arrangement of the two lock blocks, and the elastic assemblies are connected to the two lock linkage blocks through the two supporting blocks.

5. The locking structure of claim 3, wherein The upper end of the traction block is provided with a traction shaft to be rotatably connected to the buckle hole in the inner part of the cover piece, and the lower end of the traction block is provided with a buckle to be buckled to the linkage hole; the traction block is in the shape of H.

6. A lock joint as claimed in any one of claims 1 to 5, wherein The cover base is provided with abutting pieces corresponding to the positions of the two lock openings, when the two lock blocks extend out of the cover base, the two abutting pieces abut against the traction blocks on the side close to the lock opening, and the abutting pieces limit the traction blocks.

7. The lock joint of claim 1, wherein The two lock openings are symmetrically arranged relative to the cover base; the cover base is provided with a guide plate for guiding the two lock blocks and moving towards the positions of the two lock openings.

8. A filter cartridge attachment system characterized by, The application relates to a filter cover, which comprises a rack and a filter core structure mounted on the rack, the filter core structure comprises a filter bottle body, a filter cover is arranged on the upper end of the filter bottle body, the filter cover is provided with the lock structure as claimed in any one of claims 1 to 7, and the two lock blocks are in lock cooperation with the rack.

Images