Rotary linkage locking structure and filter element assembling system

Abstract

The utility model provides a rotating linkage locking structure which comprises a cover base body, and the center of the upper side of the cover base body is rotationally connected with an upper cover piece. A locking opening is formed in the peripheral side of the lower portion of the cover base body, and a locking block is arranged in the locking opening in a penetrating mode. A linkage shaft is arranged on the lower side of the upper cover piece in an extending mode, a linkage block is arranged at the lower end of the linkage shaft, and the linkage block comprises a first working end; the locking block is connected with an elastic assembly; when force is applied to enable the upper cover part to rotate around the cover base body and to be located at a first application position, the linkage block rotates, the first working end of the linkage block drives the inner side end of the locking block, and the outer side end of the locking block retracts into the cover base body through the locking opening. According to the rotary linkage locking structure, when the handle assembly applies force to the upper cover part to rotate, the telescopic movement action of the locking blocks on the two sides can be achieved in a linkage mode, and the requirement for assembling, connecting and unlocking application of a filter element structure in a filter element assembling and connecting system applying the rotary linkage locking structure is met.

Description

Technical Field

[0001] The utility model relates to the technical field of filter element installation, in particular to a rotationally linked locking structure and a filter element installation system. Background Art

[0002] The water purification device generally includes a filter element assembly and a body. The filter element assembly is installed in the body and docked with the waterway plate, so that the filter element assembly can perform the filtering function normally. The filtering capacity of the filter element assembly will decrease with the increase of the use time, so it is generally necessary to replace it after a period of use. Based on this, a detachable connection is generally adopted between the filter element assembly and the body. The method of screwing and snap-fitting along the axial direction of the filter element assembly can quickly achieve disassembly and assembly, but there is a risk that the filter element assembly is prone to abnormal falling off. To this end, a handle can be set on the filter element assembly, and the handle can be used to cooperate with the structure on the body or the waterway plate, so that when the handle is rotated to the appropriate position, it can be limited by the locking device to ensure that the filter element assembly is reliably assembled in the body. However, this will make the overall structure of the filter element assembly more complicated, and the cost of disassembling and replacing the filter element is higher.

[0003] Prior art public documents, such as CN219502172U, apply a structural setting scheme that controls the locking and unlocking of the filter element structure by linking the locking slider with the handle structure to retract and extend. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a rotationally linked locking structure and a filter element mounting system.

[0005] A locking structure with rotational linkage, which includes a cover base, the central part of the upper side of the cover base is rotatably connected to the upper cover; a locking opening is arranged on the outer peripheral side of the lower part of the cover base, and a locking block is arranged through the locking opening; a linkage shaft is extended from the lower side of the upper cover, and a linkage block is arranged at the lower end of the linkage shaft, and the linkage block includes a first working end; the locking block is connected to an elastic component; when force is applied to make the upper cover rotate around the cover base and be in the first application position, the linkage block rotates and drives the inner end of the locking block with its first working end, and the outer end of the locking block is retracted into the cover base through the locking opening; the elastic component has elastic potential energy; when the force applied to the upper cover is cancelled, the elastic component releases the elastic potential energy, the outer end of the locking block extends out of the cover base, the first working end of the linkage block is reset, and the upper cover is in the second application position.

[0006] The application principle is:

[0007] Set the state where the upper cover member is rotated due to force as the first application state. When a force is applied to rotate the upper cover member, the linkage block is correspondingly rotated, and its first working end drives the locking block to retract into the cover base through the locking opening; the structural associated application of rotating the upper cover member to retract the locking block is realized, so that the locking structure meets the unlocking application requirements for the filter element structure during installation.

[0008] Further, a handle assembly is connected to the upper cover member, and a force is applied to make the handle assembly drive the upper cover member to perform a rotational movement relative to the cover base.

[0009] Further, two locking openings are provided, and the locking blocks are correspondingly arranged in two groups on both sides of the locking openings; the first working ends are respectively arranged at both ends of the linkage block and are correspondingly arranged to cooperate with the locking blocks on both sides.

[0010] Further, the locking block includes a separately arranged first locking block and a second locking block. The first locking block includes a first tongue body that cooperates with the locking opening, and first linkage frames in a U-shaped shape are extended and arranged at both inner ends of the first tongue body; the second locking block includes a second tongue body that cooperates with the locking opening, and second linkage frames in a U-shaped shape are extended and arranged at both inner ends of the second tongue body. The outer diameter of the second linkage frame is less than or equal to the inner diameter of the first linkage frame, and the second linkage frame is inserted into the first linkage frame, and the linkage block is arranged between the first linkage frame and the second linkage frame; when the upper cover member is in the second application position, the first linkage frame and the second linkage frame are pressed against the linkage block.

[0011] Further, a positioning block is arranged in the cover base, and the elastic component includes a spring connected between the positioning block and the locking block.

[0012] Further, four groups of positioning blocks are provided, and the four groups of positioning blocks are arranged in a cross shape in the cover base. Two groups of positioning blocks on one side are correspondingly arranged on the outer sides of both sides of the first linkage frame, and first connecting pieces are extended and arranged on the outer sides of both sides of the first linkage frame. Springs are connected between the two groups of positioning blocks on one side and the first connecting pieces on both sides; two groups of positioning blocks on the other side are correspondingly arranged on the outer sides of both sides of the second linkage frame, and second connecting pieces are extended and arranged on the outer sides of both sides of the second linkage frame. Springs are connected between the two groups of positioning blocks on the other side and the second connecting pieces on both sides.

[0013] Further, two guiding walls are arranged in the cover base, and the first linkage frame is installed between the two guiding walls.

[0014] Further, the linkage block is in a long strip shape, and the first working ends are respectively arranged at both ends in the length direction of the linkage block.

[0015] Furthermore, the linkage shaft and the linkage block are integrally formed, and the linkage shaft is detachably connected to the lower side of the upper cover.

[0016] A filter element mounting system includes a frame and a filter element structure mounted on the frame, wherein the filter element structure includes a filter bottle body, a filter cover is mounted on the upper end of the filter bottle body, and the filter cover is provided with a locking structure as described above, wherein the locking block forms a locking fit with the frame.

[0017] The beneficial effects of the utility model are:

[0018] By providing a rotationally linked locking structure, when the handle assembly is used to apply force to the upper cover to rotate, the locking blocks on both sides can be linked to realize the telescopic movement, thereby satisfying the assembly and unlocking application of the filter element structure in the filter element assembly system using the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cutaway structure of the locking structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the combined structure of the locking structure of the utility model.

[0021] Description of reference numerals:

[0022] Cover base 1, locking opening 11, positioning block 12, guide wall 13,

[0023] Upper cover 2, linkage shaft 21, linkage block 22, first working end 221,

[0024] Locking block 3, first locking block 31, first tongue 311, first linkage frame 312, first connecting piece 313, second locking block 32, second tongue 321, second linkage frame 322, second connecting piece 323,

[0025] Handle component 4, elastic component 5. DETAILED DESCRIPTION

[0026] In order to make the technical solution, purpose and advantages of the present invention more clearly understood, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0027] The utility model discloses a filter element mounting system, which comprises a frame and a filter element structure mounted on the frame, wherein the filter element structure comprises a filter bottle body, a filter cover is mounted on the upper end of the filter bottle body, and a locking structure is provided on the filter cover, which forms a locking fit with the frame through the locking structure, thereby meeting the application requirements of the filter element structure being mounted and fixed or disassembled and separated from the frame.

[0028] As attached Figure 1 to Figure 2As shown, the locking structure is a rotationally linked locking structure. The locking structure includes a cover base body, and an upper cover member is rotatably connected to the center of the upper side of the cover base body; a locking opening is provided on the outer peripheral side of the lower part of the cover base body, and a locking block is inserted through the locking opening; a linkage shaft is extended and provided on the lower side of the upper cover member, a linkage block is provided at the lower end of the linkage shaft, and the linkage block includes a first working end; the locking block is connected to an elastic component;

[0029] When a force is applied to rotate the upper cover member around the cover base body and it is in the first application position, the linkage block rotates and drives the inner end of the locking block with its first working end, and the outer end of the locking block retracts into the cover base body through the locking opening; the elastic component has elastic potential energy;

[0030] When the force applied to the upper cover member is withdrawn, the elastic component releases the elastic potential energy, the outer end of the locking block extends out of the cover base body, the first working end of the linkage block resets, and the upper cover member is in the second application position.

[0031] The specific structure of the locking structure is set as follows:

[0032] First, a handle component is connected to the upper cover member. The handle component can be applied as a conventional U-shaped handle structure with a rotational connection in the prior art. After applying a force to flip the handle component, it is easier for the user to hold, thereby driving the upper cover member to rotate relative to the cover base body to meet the linkage driving requirement of the locking block in the locking structure.

[0033] Second, in the application of this solution, the locking block can be provided on only one side to meet the basic application requirements; as a preferred implementation manner, two locking blocks are provided in this solution, then two locking openings are provided, and the two locking openings are symmetrically provided at both ends of the cover base body.

[0034] In the specific structure setting of the two-side locking blocks, the locking block includes a separately provided first locking block and a second locking block. The first locking block includes a first tongue body that cooperates with one side of the locking opening, and the outer side of the first tongue body is the outer end of the first locking block (locking block). Two ends of the inner side of the first tongue body extend to form a U-shaped first linkage frame; the second locking block includes a second tongue body that cooperates with the other side of the locking opening, and the outer side of the second tongue body is the outer end of the second locking block (locking block); two ends of the inner side of the second tongue body extend to form a U-shaped second linkage frame.

[0035] The outer diameter of the second linkage frame is smaller than or equal to the inner diameter of the first linkage frame, and the vertical frame members on both sides of the second linkage frame are connected to the horizontal frame members of the first linkage frame, so that the horizontal frame members of the second linkage frame are placed in the first linkage frame. The linkage block is arranged between the first linkage frame and the second linkage frame; specifically, the linkage block is in the shape of a long strip, and the two ends of the linkage block in the length direction are arranged with the first working ends on both sides, so that the first working ends are arranged at both ends of the linkage block and are matched with the locking blocks on both sides.

[0036] A positioning block is arranged in the cover base, and the elastic component includes a spring connected between the positioning block and the locking block; four groups of positioning blocks are arranged in a field shape in the cover base, two groups of positioning blocks on one side are arranged corresponding to the outer sides of the vertical frame members on both sides of the first linkage frame, and the first connecting members are extended outward from the outer vertical frame members on both sides of the first linkage frame, and springs are connected between the two groups of positioning blocks on one side and the first connecting members on both sides. Two groups of positioning blocks on the other side are arranged corresponding to the outer sides of the vertical frame members on both sides of the second linkage frame, and second connecting members are extended outward from the outer sides of the vertical frame members on both sides of the second linkage frame, and springs are connected between the two groups of positioning blocks on the other side and the second connecting members on both sides.

[0037] When the upper cover is in the first application position, the length extension direction of the linkage block corresponds to the locking openings on both sides, and the first working ends on both sides of the linkage block respectively contact the inner side of the horizontal frame of the first linkage frame and the second linkage frame on both sides, thereby driving the first locking block and the second locking block on both sides to move toward the inner side of the cover base to achieve the retraction of the locking block. At this time, the spring is compressed with elastic potential energy as the locking blocks on both sides retract.

[0038] When the upper cover is in the second application position, the length extension direction of the linkage block is perpendicular to the locking openings on both sides, and the springs at the four ends release elastic potential energy. The first linkage frame and the second linkage frame lose the pushing support of the linkage block and reset as the spring releases the elastic potential energy, so that the first tongue and the second tongue extend out of the cover base.

[0039] Thirdly, in order to ensure the stable movement of the locking blocks on both sides during the telescopic process, a guide assembly for guiding the telescopic movement of the locking blocks can be provided in the cover base. The guide assembly includes two guide walls provided in the middle of the cover base, and the first linkage frame is installed between the two guide walls.

[0040] Fourthly, in order to meet the processing, installation and application requirements of the locking structure, in the locking structure, the linkage shaft and the linkage block are integrally formed, and the linkage shaft is detachably connected to the lower side of the upper cover.

[0041] The above is only a preferred implementation of the present invention. Those skilled in the art can still modify the embodiments without departing from the implementation principle of the present invention, and the corresponding modifications should also be regarded as within the protection scope of the present invention.

Claims

1. The locking structure of the rotation linkage is characterized in that: It includes a cover base body, and an upper cover member is rotatably connected to the center of the upper side of the cover base body; a locking opening is provided on the outer peripheral side of the lower part of the cover base body, and a locking block is arranged through the locking opening; a linkage shaft is extended and provided on the lower side of the upper cover member, and a linkage block is arranged at the lower end of the linkage shaft. The linkage block includes a first working end; the locking block is connected to an elastic component; When a force is applied to rotate the upper cover member around the cover base body and it is in the first application position, the linkage block rotates and drives the inner end of the locking block with its first working end, and the outer end of the locking block retracts into the cover base body through the locking opening; the elastic component has elastic potential energy; When the force applied to the upper cover member is withdrawn, the elastic component releases the elastic potential energy, the outer end of the locking block extends out of the cover base body, the first working end of the linkage block resets, and the upper cover member is in the second application position.

2. The locking structure according to claim 1, characterized in that: A handle component is connected to the upper cover member, and a force is applied to make the handle component drive the upper cover member to make a rotational movement relative to the cover base body.

3. The locking structure according to claim 2, characterized in that: Two locking openings are provided, and the locking blocks are arranged in two groups corresponding to the two sides of the locking openings; the first working ends are respectively arranged at both ends of the linkage block and are arranged corresponding to the two sides of the locking blocks for cooperation.

4. The locking structure according to claim 3, characterized in that: The locking block includes a separately arranged first locking block and a second locking block. The first locking block includes a first tongue body that cooperates with the locking opening. First linkage frames in a "冂" shape are extended and arranged at both inner ends of the first tongue body; the second locking block includes a second tongue body that cooperates with the locking opening. Second linkage frames in a "冂" shape are extended and arranged at both inner ends of the second tongue body. The outer diameter of the second linkage frame is less than or equal to the inner diameter of the first linkage frame, and the second linkage frame is arranged through the first linkage frame. The linkage block is arranged between the first linkage frame and the second linkage frame; when the upper cover member is in the second application position, the first linkage frame and the second linkage frame are pressed against the linkage block.

5. The locking structure according to claim 4, characterized in that: A positioning block is arranged in the cover base body, and the elastic component includes a spring connected between the positioning block and the locking block.

6. The locking structure according to claim 5, characterized in that: Four groups of positioning blocks are provided. The four groups of positioning blocks are arranged in a "field" shape in the cover base body. Two groups of positioning blocks on one side are arranged corresponding to the outer sides of both sides of the first linkage frame. First connecting pieces are extended and arranged on the outer sides of both sides of the first linkage frame. Springs are connected between the two groups of positioning blocks on one side and the two connecting pieces on both sides; two groups of positioning blocks on the other side are arranged corresponding to the outer sides of both sides of the second linkage frame. Second connecting pieces are extended and arranged on the outer sides of both sides of the second linkage frame. Springs are connected between the two groups of positioning blocks on the other side and the two connecting pieces on both sides.

7. The locking structure according to claim 4, characterized in that: Two guiding walls are arranged in the cover base body, and the first linkage frame is installed between the two guiding walls.

8. The locking structure according to claim 1, characterized in that: The linkage block is in a long strip shape, and the first working ends are respectively arranged at both ends in the length direction of the linkage block.

9. The locking structure according to claim 1, characterized in that: The linkage shaft and the linkage block are integrally formed, and the linkage shaft is detachably and installably connected to the lower side of the upper cover member.

10. A filter element mounting system, characterized in that: It includes a frame and a filter element structure installed on the frame, the filter element structure includes a filter bottle body, the upper end of the filter bottle body is equipped with a filter cover, the filter cover is provided with a locking structure as described in any one of claims 1 to 9, and the locking block forms a locking fit with the frame.

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