A compression mechanism and high efficiency filter

The clamping mechanism, based on a simple cam and rocker arm structure, solves the problems of poor sealing and complex operation of high-efficiency filters, achieving easy installation and low-cost sealing performance.

CN224524297UActive Publication Date: 2026-07-21WEIFANG PARKER HANNIFIN FILTRATION PROD & SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG PARKER HANNIFIN FILTRATION PROD & SYST CO LTD
Filing Date
2025-06-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing high-efficiency filter clamping methods suffer from problems such as complex structure, high cost, cumbersome operation, and poor sealing performance, especially the bolt fastening and spring locking mechanisms of plate-type HEPA13/14 filters, which have defects.

Method used

The clamping mechanism adopts a simple cam and rocker structure. It uses a combination of rotating and clamping parts. The rotating rocker assembly drives the rotating and clamping parts to clamp the high-efficiency filter body to ensure sealing. The rotation angle is limited by a limiting component.

Benefits of technology

It achieves excellent sealing of the air inlet plate of the high-efficiency filter, is simple to install and low in cost, and solves the problems of complex structure and high cost in the existing technology.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of compression mechanism and high-efficiency filter, wherein compression mechanism is applied to high-efficiency filter, compression mechanism includes support structure, rotating member being rotatably arranged on support structure, compression member being fixed on rotating member, and rocker assembly being connected with rotating member;Compression mechanism further includes limiting assembly, limiting assembly is arranged on the rotating path of compression member or rocker assembly, to limit the rotation angle of compression member or rocker assembly.The utility model in compression mechanism is mainly constituted simple cam and rocker structure, when installing, support structure can be fixed in the side of installation box away from air inlet end plate, after high-efficiency filter body is arranged in installation box, rotating rocker assembly, rotating rotating member and compression member, after rotating, compression member compresses high-efficiency filter body, so that high-efficiency filter body is tightly attached with air inlet end plate side, to guarantee the sealing property of high-efficiency filter air inlet end plate, installation process is simple to operate, convenient to replace, and production cost is low.
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Description

Technical Field

[0001] This utility model relates to the field of high-efficiency filter technology, and in particular to a pressing mechanism and a high-efficiency filter. Background Technology

[0002] In the industrial dust removal industry, situations requiring ultra-clean air are frequently encountered, primarily filtering out fine dust particles smaller than 1μm for clean spaces with high cleanliness requirements. Examples include the pharmaceutical industry, the 3C industry, high-precision chip manufacturing, and aerospace. Considering cost and ease of maintenance, designers typically use plate-type HEPA 13 / 14 high-efficiency filters for the final stage of air purification. To ensure filtration effectiveness, the sealing of the HEPA filter's inlet is particularly important.

[0003] Common clamping methods in existing technologies include pressure plate and long bolt clamping and spring locking mechanism. Among them, the pressure plate and long bolt clamping method has a simple structure, but tightening the long bolt is relatively troublesome and can easily lead to problems such as the bolt not being tightened properly, resulting in poor sealing, or the bolt being over-tightened, causing the HEPA filter sealing strip to be over-compressed and fail. Moreover, nuts, flat washers, etc. are easy to be lost when replacing HEPA filters. The spring locking method has a more complex structure, more parts, higher manufacturing costs, and troublesome assembly. Utility Model Content

[0004] To address the aforementioned shortcomings, the technical problem to be solved by this utility model is to provide a pressing mechanism and a high-efficiency filter. The mechanism mainly consists of a simple cam and rocker structure. The cam is used to press the high-efficiency filter body, which provides good sealing performance on the air inlet end plate side. It also has the advantages of simple structure, easy implementation and low cost.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A clamping mechanism for use in a high-efficiency filter includes a fixed support structure, a rotating component rotatably mounted on the support structure, a clamping component fixed on the rotating component, and a rocker assembly connected to the rotating component. The clamping mechanism further includes a limiting component disposed on the rotation path of the clamping component or the rocker assembly to limit the rotation angle of the clamping component or the rocker assembly. Rotating the rocker assembly causes the rotating component and the clamping component to rotate, thereby causing the clamping component to press against the high-efficiency filter body.

[0007] In a preferred embodiment, the support structure includes a support main board and support ear plates disposed at both ends of the support main board. The support ear plates are provided with mounting through holes, and the rotating component is disposed within the mounting through holes.

[0008] In a preferred embodiment, the rotating component is a cylinder, a shaft, or a rotating rod.

[0009] In a preferred embodiment, the clamping member is a clamping plate, the length direction of the clamping plate is consistent with the length direction of the rotating member, one side of the clamping plate is fixed to the outside of the rotating member, and the other side of the clamping plate is rotated and pressed onto the high-efficiency filter body.

[0010] In a preferred embodiment, the rocker assembly includes a rocker arm and a handle at one end of the rocker arm, with the other end of the rocker arm connected to the rotating component.

[0011] In a preferred embodiment, the limiting component includes a limiting rod, which is disposed on the support structure, and the extending direction of the limiting rod is perpendicular to the rotation direction of the clamping member or the rocker assembly.

[0012] In a preferred embodiment, the support structure is provided with two sets of limiting components, which are respectively located on the rotation paths of the clamping member or the rocker assembly in the forward and reverse directions.

[0013] In a preferred embodiment, the clamping plate includes a vertically arranged fixing plate and a pressing plate, the fixing plate is connected to the rotating component, and the fixing plate is arranged in parallel with the rocker arm.

[0014] In a preferred embodiment, the support motherboard is fixed to the mounting box of the high-efficiency filter by fasteners.

[0015] A high-efficiency filter includes a mounting box, in which a high-efficiency filter body is disposed, and at least one of the above-mentioned clamping mechanisms is disposed between the high-efficiency filter body and the mounting box.

[0016] The beneficial effects of this utility model after adopting the above technical solution are:

[0017] The present invention relates to a pressing mechanism and a high-efficiency filter. The pressing mechanism utilizes a high-efficiency filter and includes a fixed support structure, a rotating component rotatably mounted on the support structure, a pressing component fixed to the rotating component, and a rocker assembly connected to the rotating component. The pressing mechanism also includes a limiting component positioned along the rotation path of the pressing component or the rocker assembly to limit the rotation angle of the pressing component or the rocker assembly. The pressing mechanism of this invention utilizes the rotating component and the pressing component to form a simple cam and rocker structure. During installation, the support structure is fixed to the side of the high-efficiency filter mounting box away from the air inlet end plate. After the high-efficiency filter body is placed inside the mounting box, rotating the rocker assembly causes the rotating component and the pressing component to rotate. After rotation, the pressing component presses against the high-efficiency filter body, ensuring that the high-efficiency filter body is tightly attached to the side of the air inlet end plate, thus guaranteeing the sealing of the high-efficiency filter's air inlet end plate. Furthermore, the installation process is simple, replacement is convenient, and the manufacturing cost is low. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the high-efficiency filter in this utility model;

[0019] Figure 2 This is a side view of the high-efficiency filter in this utility model;

[0020] Figure 3 yes Figure 2 Cross-sectional view along the AA direction;

[0021] Figure 4 This is a diagram illustrating the installation of a high-efficiency filter;

[0022] Figure 5 This is a side view of the high-efficiency filter in this utility model;

[0023] Figure 6 yes Figure 5 Cross-sectional view along the CC direction;

[0024] Figure 7 yes Figure 6 A magnified view of a portion of point D in the middle;

[0025] Figure 8 This is a schematic diagram of the clamping mechanism in this utility model;

[0026] Figure 9 This is a schematic diagram of the supporting structure in this utility model;

[0027] Figure 10 This is a front view of the clamping mechanism in this utility model;

[0028] Figure 11 yes Figure 10 Enlarged cross-sectional view along the BB direction;

[0029] Figure 12 yes Figure 10 The left view;

[0030] In the diagram: 1-Mounting box, 2-Air inlet, 3-Air inlet end plate, 4-Support rail, 5-High-efficiency filter body, 6-Pressure mechanism, 61-Rotating component, 62-Pressure component, 63-Rock arm assembly, 630-Rock arm, 631-Handle, 632-Bolt assembly, 64-Support structure, 640-Support main board, 641-Support ear plate, 642-Mounting through hole, 643-Fixing hole, 65-Limiting component, 650-Limiting mounting hole, 651-Limiting rod, 70-Rotate clockwise 90°, 71-Rotate counterclockwise 90°, 72-Airflow direction, 8-Air outlet. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Example 1:

[0035] like Figures 1 to 12 As shown, a clamping mechanism applied to a high-efficiency filter includes a fixed support structure 64, a rotating member 61 rotatably mounted on the support structure 64, a clamping member 62 fixed on the rotating member 61, and a rocker assembly 63 connected to the rotating member 61. The clamping mechanism 63 also includes a limiting component 65, which is located on the rotation path of the clamping member 62 or the rocker assembly 63 to limit the rotation angle of the clamping member or the rocker assembly 63. Rotating the rocker assembly 63 causes the rotating member 61 and the clamping member 62 to rotate, so that the clamping member 62 presses against the high-efficiency filter body 5. In a preferred embodiment, the rotating member 61 is a cylinder, a rotating shaft, or a rotating rod, etc.

[0036] In use, the support structure 64 can be fixed to the mounting box 1 of the HEPA filter body 5 with fasteners, on the side away from the air inlet end plate 3. Because the clamping member 62 is located inside the clamping mechanism 6 in the initial state, the clamping mechanism 6 does not occupy the installation space of the HEPA filter body 5, thus facilitating the installation and removal of the HEPA filter. After the HEPA filter body 5 is placed in the mounting box 1, the rocker arm assembly 63 can be rotated to drive the rotating member 61 and the clamping member 62 to rotate. After rotation, the clamping member 62 presses on the HEPA filter body 5, so that the HEPA filter body 5 is tightly attached to the side of the air inlet end plate 3, thereby ensuring the sealing of the HEPA filter air inlet end plate.

[0037] The clamping mechanism of this utility model mainly utilizes a simple cam and rocker structure formed by a rotating component 61 and a clamping component 62, such as a cam that mimics the cross-section of a cylinder and a clamping plate. When the cam (cylinder) rotates, the protruding part of the cam (clamping plate) extends out of the clamping mechanism 6 and contacts the HEPA filter body 5 to achieve clamping. After rotation, the clamping plate returns to the clamping mechanism 6, achieving clearance and facilitating the disassembly of the HEPA filter. In other words, the clamping mechanism of this utility model uses a simple combination of a cam and a rocker to easily and effectively clamp the HEPA filter body 5 to the air inlet end plate 3, effectively solving the problems of cumbersome operation of long bolt clamping methods for HEPA filters and the complex structure and high manufacturing cost of spring locking mechanisms. Moreover, the clamping mechanism of this utility model has the advantages of simple structure, low cost, and ease of implementation.

[0038] like Figures 8 to 12 As shown, the support structure 64 of this utility model includes a main support plate 640 and support ear plates 641 disposed at both ends of the main support plate 640. The support ear plates 641 are provided with mounting through holes 642, and rotating components 61 are disposed within the mounting through holes 642. Specifically, the main support plate 640 may be provided with fixing holes 643. In this case, the main support plate 640 can be fixed to the mounting box 1 of the high-efficiency filter through fasteners and fixing holes 643. Of course, the support structure 64 is not limited to the structure listed above; it can be a support frame, as long as the support frame can support and rotate the rotating component 61.

[0039] like Figures 6 to 12 As shown, the clamping member 62 of this utility model is a clamping plate. The length direction of the clamping plate is consistent with the length direction of the rotating member 61. One side of the clamping plate is fixed to the outside of the rotating member 61, and the other side of the clamping plate is squeezed onto the high-efficiency filter body 5 after rotation. In a preferred embodiment, the clamping plate includes a vertically arranged fixing plate and a pressing plate, wherein the fixing plate is connected to the rotating member 61 and the fixing plate is arranged in parallel with the rocker arm 630.

[0040] The rocker assembly 63 includes a rocker arm 630 and a handle 631 located at one end of the rocker arm 630. The other end of the rocker arm 630 is connected to a rotating member 61. Specifically, the handle 631 can be fixed to one end of the rocker arm 630 by a bolt assembly 632, and one end of the cylinder extends out of the support ear plate 641 and is connected to the other end of the rocker arm 630.

[0041] In the initial state, after the clamping mechanism 6 is fixed on the mounting box 1, the fixing plate and the rocker arm 630 are arranged in parallel. At this time, the clamping plate is located above the cylinder, which can avoid the HEPA filter body 5, facilitating the installation of the HEPA filter body 5. When clamping is required, the rocker arm 630 is rotated 90°, which drives the cylinder to rotate 90°, causing the extrusion plate to rotate 90°. At this time, the outer side of the extrusion plate contacts the surface of the HEPA filter body 5, pressing the HEPA filter body 5 to the side of the air inlet end plate 3, tightly adhering to the air inlet end plate 3, and achieving a seal on the air inlet side.

[0042] like Figure 7 , Figure 8 , Figure 10 , Figure 11 and Figure 12 As shown, the limiting component 65 of this utility model includes a limiting rod 651, which is disposed on the support structure 64. The extending direction of the limiting rod 651 is perpendicular to the rotation direction of the clamping member 62 or the rocker assembly 63. In this embodiment, the limiting rod 651 is disposed on the rotation path of the clamping plate. In a preferred embodiment, the limiting rod 651 is a limiting screw. In this case, the support ear plate 641 is provided with a limiting mounting hole 650, and the limiting screw is installed on the support ear plate 641 through a limiting nut, washer, etc.

[0043] like Figure 7 As shown, in this embodiment, the support structure 64 is provided with two sets of limiting components 65, which are respectively arranged on the rotation paths of the clamping member 62 or the rocker assembly 63 in the forward and reverse directions. This structural arrangement makes the clamping mechanism 6 more convenient to use. Two limiting rods 651 are provided on the support ear plate 641 to limit the counterclockwise and clockwise rotation angles of the clamping plate. See [reference needed]. Figure 4 .

[0044] Example 2:

[0045] like Figures 1 to 7 As shown in the figure, a high-efficiency filter includes a mounting box 1, a support rail 4 inside the mounting box 1, an air inlet plate 3 on one side of the mounting box 1, and an air inlet 2 on the outer side of the mounting box 1 on one side of the air inlet plate 3. Figure 3 The middle arrow 72 indicates the airflow direction, and the mounting box 1 is also equipped with an air outlet 8.

[0046] At least one clamping mechanism 6 as described in Embodiment 1 is provided between the high-efficiency filter body 5 and the mounting box 1 of this utility model. In a preferred embodiment, two clamping mechanisms 6 are provided on the side of the mounting box 1 away from the air inlet end plate 3, and the two clamping mechanisms 6 are arranged in a mirror image. At this time, after the high-efficiency filter body 5 is installed on the support guide rail 4, the clamping plates of the two clamping mechanisms 6 can be pressed onto the high-efficiency filter body 5 by rotating the upper rocker arm 630 counterclockwise by 90° (arrow 71) and the lower rocker arm 630 clockwise by 90° (arrow 70). At this time, the compression amount E of the clamping mechanism 6 over the high-efficiency filter body 5 is as shown in the figure. Figure 7 This allows the high-efficiency filter body 5 to fit tightly against the air inlet end plate 3, quickly completing the sealing of the high-efficiency filter and achieving a good sealing effect.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, improvements to equivalent pressing mechanisms and high-efficiency filters made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping mechanism applied to a high-efficiency filter, characterized in that, It includes a fixed support structure, a rotating component rotatably mounted on the support structure, a clamping component fixed on the rotating component, and a rocker assembly connected to the rotating component; The clamping mechanism further includes a limiting component, which is disposed on the rotation path of the clamping member or the rocker assembly to limit the rotation angle of the clamping member or the rocker assembly. Rotating the rocker assembly causes the rotating component and the clamping component to rotate, thereby pressing the clamping component against the high-efficiency filter body.

2. The clamping mechanism according to claim 1, characterized in that, The support structure includes a support main board and support ear plates at both ends of the support main board. The support ear plates are provided with mounting through holes, and the rotating component is disposed in the mounting through holes.

3. The clamping mechanism according to claim 1, characterized in that, The rotating component is a cylinder, a shaft, or a rotating rod.

4. The clamping mechanism according to claim 3, characterized in that, The clamping component is a clamping plate, the length direction of the clamping plate is consistent with the length direction of the rotating component, one side of the clamping plate is fixed to the outside of the rotating component, and the other side of the clamping plate is rotated and pressed onto the high-efficiency filter body.

5. The clamping mechanism according to claim 4, characterized in that, The rocker assembly includes a rocker arm and a handle at one end of the rocker arm, and the other end of the rocker arm is connected to the rotating component.

6. The clamping mechanism according to claim 5, characterized in that, The limiting component includes a limiting rod, which is disposed on the support structure, and the extending direction of the limiting rod is perpendicular to the rotation direction of the clamping member or the rocker assembly.

7. The clamping mechanism according to claim 6, characterized in that, The support structure is provided with two sets of limiting components, which are respectively located on the rotation paths of the clamping member or the rocker assembly in the forward and reverse directions.

8. The clamping mechanism according to claim 6, characterized in that, The clamping plate includes a vertically arranged fixed plate and a pressing plate. The fixed plate is connected to the rotating component and is arranged in parallel with the rocker arm.

9. The clamping mechanism according to claim 2, characterized in that, The support motherboard is fixed to the mounting box of the high-efficiency filter by fasteners.

10. A high-efficiency filter, characterized in that, The device includes a mounting box, in which a high-efficiency filter body is disposed, and at least one clamping mechanism as described in any one of claims 1 to 9 is disposed between the high-efficiency filter body and the mounting box.