Assembly fixture for end caps of sintered mesh filter elements

The multi-point clamping and positioning assembly fixture solves the problem of poor end cap positioning in existing technologies, and achieves stable clamping and rapid bonding of end caps with different inner diameters, thereby improving assembly efficiency and accuracy.

CN224425435UActive Publication Date: 2026-06-30HENAN ZHONGLU NEW MATERIAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN ZHONGLU NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-08-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing sintered mesh filter element end cap assembly fixture cannot fit well with end caps of different inner diameters when adjusting the spacing, resulting in poor positioning effect and making it difficult to apply to the assembly of various inner diameters.

Method used

The assembly fixture employs multi-point clamping and positioning. Through the first elastic mechanism and the separation mechanism, it achieves stable clamping and quick release of end caps with different inner diameters. Combined with the second elastic mechanism, it ensures accurate alignment and firm adhesion between the filter material and the end cap.

Benefits of technology

It achieves stable clamping and positioning of end caps with different inner diameters, improves assembly efficiency, and ensures rapid bonding and disassembly of filter media and end caps, thereby enhancing assembly efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224425435U_ABST
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Abstract

This utility model relates to an assembly fixture for end caps of sintered mesh filter elements, including a base. The surface of the base has multiple sets of through slots arranged in a circular array, with each set containing multiple through slots distributed in a circular array. L-shaped clamping rods are installed inside the through slots via a first elastic mechanism. A through groove is provided on the surface of the base next to each set of through slots, and a pressure rod is inserted inside the through groove. A separation mechanism is provided between the bottom of the pressure rod and the multiple L-shaped clamping rods, used to move the multiple L-shaped clamping rods away from each other when the pressure rod is pressed. A column is installed at the center of the upper surface of the base, and multiple pressure plates are installed on the outer surface of the column via a second elastic mechanism. The first elastic mechanism allows the end cap to be clamped between the multiple L-shaped clamping rods. This multi-point clamping positioning method enables the assembly and use of end caps with different inner diameters and facilitates the quick removal of the assembled filter element, improving assembly efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of filter element technology, specifically to an assembly tooling for a sintered mesh filter element end cap. Background Technology

[0002] The main function of the end caps on sintered mesh filter cartridges is to seal both ends of the cartridge to prevent leakage of the filter media, while also providing structural support for the cartridge, facilitating its installation and use in the filtration system. In existing technologies, end caps are mostly installed using adhesive bonding, requiring the application of adhesive to the end cap before bonding it to the filter media.

[0003] Chinese patent CN222060170U discloses a filter element end cap assembly fixture. This fixture can change the position of the movable strip by rotating the screw, thereby changing the distance between the fixed strip and the movable strip, thus changing the distance between two symmetrical assembly components outside the same fixed block, so as to adapt to end caps with different inner diameters for clamping and limiting, so as to facilitate assembly.

[0004] However, because the inner wall curvature of the lower arc plate is fixed, when the distance between the two lower arc plates is adjusted, it cannot fit well with the end cap, resulting in poor positioning effect and making it difficult to be well applied to the assembly and use of end caps with different inner diameters. Utility Model Content

[0005] The purpose of this invention is to provide an assembly fixture for the end cap of a sintered mesh filter element, which effectively solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] An assembly fixture for a sintered mesh filter element end cap includes a base. The surface of the base has multiple sets of through slots arranged in a circular array, with each set containing multiple through slots distributed in a circular array. L-shaped clamping rods are installed inside the through slots via a first elastic mechanism. A through groove is provided on the surface of the base next to each set of through slots, and a pressure rod is inserted inside the through groove. A separation mechanism is provided between the bottom of the pressure rod and the multiple L-shaped clamping rods, used to move the multiple L-shaped clamping rods away from each other when the pressure rod is pressed. A column is installed at the center of the upper surface of the base. Multiple pressure plates are installed on the outer surface of the column via a second elastic mechanism, and each pressure plate corresponds to a position directly above the multiple sets of through slots.

[0008] Furthermore, the first elastic mechanism includes two fixed blocks installed at the bottom of the base and located on both sides of the through groove along its length. A first slide rod is connected between the two fixed blocks, and an L-shaped clamp rod is slidably installed on the first slide rod. A first spring is sleeved on the outer surface of the first slide rod, and the two ends of the first spring abut against the fixed blocks and the L-shaped clamp rod, respectively.

[0009] Furthermore, the separation mechanism includes a second slide rod mounted on the bottom of the base and located at the center of multiple through slots. A sliding sleeve is slidably mounted on the outer surface of the second slide rod, and the sliding sleeve is connected to the bottom of the pressure rod via a connecting plate. Multiple hinge plates are hingedly mounted on the outer surface of the sliding sleeve, and the ends of the hinge plates are hingedly connected to an L-shaped clamping rod.

[0010] Furthermore, the second elastic mechanism includes a groove formed on the outer surface of the column, a third slide rod installed inside the groove, an extension plate slidably mounted on the outer surface of the third slide rod, and a pressure plate disposed at the end of the extension plate. A second spring is sleeved on the outer surface of the third slide rod, with both ends of the second spring abutting against the top wall of the groove and the upper surface of the extension plate, respectively.

[0011] Furthermore, ball bearings are provided on the inner wall of the through groove and the outer surface of the extension plate.

[0012] Furthermore, a support column is installed at the bottom of the base, and the length of the support column is greater than the length of the second sliding rod.

[0013] Furthermore, a pressure block is installed on the top of the pressure bar.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0015] This invention, through the setting of the first elastic mechanism, can clamp the end cap between multiple L-shaped clamping rods. Through multi-point clamping and positioning, it can realize the assembly and use of end caps with different inner diameters. Furthermore, through the setting of the separation mechanism, when the pressure rod is pressed down, it can drive the multiple L-shaped clamping rods to move away from each other, which can quickly release the fixation of the end cap, making it easy to quickly remove the assembled filter element and improve assembly efficiency. Attached Figure Description

[0016] Figure 1 This is one of the three-dimensional schematic diagrams of the overall structure of this utility model;

[0017] Figure 2 This is the second three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first elastic mechanism and the separation mechanism in this utility model;

[0019] Figure 4 This is a partial cross-sectional structural diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the second elastic mechanism in this utility model.

[0021] In the diagram: 1. Base; 101. Through slot; 102. L-shaped clamping rod; 103. Through groove; 104. Pressure rod; 105. Column; 106. Pressure plate; 107. Support column; 108. Pressure block; 2. First elastic mechanism; 201. Fixing block; 202. First sliding rod; 203. First spring; 3. Separation mechanism; 301. Second sliding rod; 302. Sliding sleeve; 303. Connecting plate; 304. Hinge plate; 4. Second elastic mechanism; 401. Groove; 402. Third sliding rod; 403. Extension plate; 404. Second spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides an assembly fixture for a sintered mesh filter element end cap, comprising a base 1. The surface of the base 1 has multiple sets of through slots 101 arranged in a circular array, with each set containing multiple through slots 101 distributed in a circular array. L-shaped clamping rods 102 are installed inside each through slot 101 via a first elastic mechanism 2. A through groove 103 is provided on the surface of the base 1 beside each set of through slots 101. A pressure rod 104 is inserted inside the through groove 103. A separation mechanism 3 is provided between the bottom of the pressure rod 104 and the multiple L-shaped clamping rods 102, used to move the multiple L-shaped clamping rods 102 away from each other when the pressure rod 104 is pressed. A column 105 is installed at the center of the upper surface of the base 1. Multiple pressure plates 106 are installed on the outer surface of the column 105 via a second elastic mechanism 4, and the multiple pressure plates 106 are respectively positioned directly above the multiple sets of through slots 101.

[0024] In use, first press down the lever 104. Under the action of the separation mechanism 3, multiple L-shaped clamps 102 will move away from each other. Then, place the end cap between the multiple L-shaped clamps 102 and release the lever 104. Under the action of the first elastic mechanism 2, the multiple L-shaped clamps 102 will move closer to each other and press against the outside of the end cap, achieving multi-point positioning. Next, insert the filter material between the multiple L-shaped clamps 102 and bond it to the end cap. The lower part of the L-shaped clamps 102 can position the end cap, and the upper part can position the filter material, thus ensuring accurate alignment of the filter material and the end cap. Then, use the second elastic mechanism 4 to drive the pressure plate 106 to press firmly on the top of the filter material, so that the lower end of the filter material is firmly bonded to the end cap. After the glue solidifies, step down the lever 104 and lift the pressure plate 106 upwards. The assembled filter element can then be quickly removed from between the multiple L-shaped clamps 102, resulting in high assembly efficiency.

[0025] Preferably, the first elastic mechanism 2 includes two fixing blocks 201 installed at the bottom of the base 1 and located on both sides of the through groove 101 along its length. A first sliding rod 202 is connected between the two fixing blocks 201, and an L-shaped clamping rod 102 is slidably installed on the first sliding rod 202. A first spring 203 is sleeved on the outer surface of the first sliding rod 202, and the two ends of the first spring 203 abut against the fixing blocks 201 and the L-shaped clamping rod 102, respectively.

[0026] The through groove 101 and the first slide bar 202 together limit the L-shaped clamping rod 102, so that the L-shaped clamping rod 102 can only move along the length direction of the through groove 101. Therefore, under the elastic force of the first spring 203, multiple L-shaped clamping rods 102 can clamp and position end caps with different inner diameters.

[0027] The number of L-shaped clamps 102 is at least three to ensure multi-point positioning.

[0028] Preferably, the separation mechanism 3 includes a second slide rod 301 installed at the bottom of the base 1 and located at the center of multiple through slots 101. A sliding sleeve 302 is slidably mounted on the outer surface of the second slide rod 301, and the sliding sleeve 302 is connected to the bottom of the pressure rod 104 through a connecting plate 303. Multiple hinge plates 304 are hingedly mounted on the outer surface of the sliding sleeve 302, and the ends of the hinge plates 304 are hingedly connected to the L-shaped clamping rod 102.

[0029] When the pressure rod 104 is pressed down, the sliding sleeve 302 can slide on the second sliding rod 301. When the sliding sleeve 302 slides down, the hinge plate 304 pushes the L-shaped clamp 102 outward, so that multiple L-shaped clamps 102 move away at the same time. Since the L-shaped clamp 102 will compress the first spring 203 when it slides on the first sliding rod 202, when the pressure rod 104 is released, the sliding sleeve 302 can drive the pressure rod 104 to return to its original position.

[0030] Preferably, the second elastic mechanism 4 includes a groove 401 formed on the outer surface of the column 105, a third slide rod 402 installed inside the groove 401, an extension plate 403 slidably mounted on the outer surface of the third slide rod 402, and a pressure plate 106 disposed at the end of the extension plate 403. A second spring 404 is sleeved on the outer surface of the third slide rod 402, and the two ends of the second spring 404 abut against the top wall of the groove 401 and the upper surface of the extension plate 403, respectively.

[0031] When inserting the filter media between multiple L-shaped clamps 102 and assembling it with the end cap, first push the pressure plate 106 upward so that the extension plate 403 slides on the third slide bar 402 and compresses the second spring 404, thereby making enough space to place the filter media. After the filter media is placed, release the pressure plate 106. Under the elastic force of the second spring 404, the pressure plate 106 can be pressed tightly against the top of the filter media, so that the lower end of the filter media is firmly bonded to the end cap.

[0032] Preferably, the inner wall of the through groove 103 and the outer surface of the extension plate 403 are provided with ball bearings.

[0033] By using ball bearings, the friction between the pressure rod 104 and the inner wall of the through groove 103, and between the extension plate 403 and the outer surface of the third slide bar 402, can be reduced, thereby reducing wear, noise, and the force required to be applied.

[0034] Preferably, a support column 107 is installed at the bottom of the base 1, and the length of the support column 107 is greater than the length of the second slide bar 301.

[0035] The support column 107 provides stable support for the base 1 and provides installation space for structures such as the L-shaped clamp 102 and the second slide bar 301.

[0036] Preferably, a pressure block 108 is mounted on the top of the pressure rod 104.

[0037] When pressing down on the lever 104, the contact area can be increased, local pressure reduced, and comfort improved.

[0038] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An assembly fixture for end caps of sintered mesh filter elements, comprising a base (1), characterized in that: The surface of the base (1) is provided with a ring array of multiple through slots (101), and each group of through slots (101) has multiple through slots (101) distributed in a ring array. An L-shaped clamp (102) is installed inside the through slot (101) through a first elastic mechanism (2). The surface of the base (1) is provided with a through groove (103) on the side of each group of through grooves (101). A pressure rod (104) is inserted into the through groove (103). A separation mechanism (3) is provided between the bottom of the pressure rod (104) and the multiple L-shaped clamps (102) for using a mechanism to move the multiple L-shaped clamps (102) away from each other when the pressure rod (104) is pressed. A column (105) is installed at the center of the upper surface of the base (1). Multiple pressure plates (106) are installed on the outer surface of the column (105) through the second elastic mechanism (4), and the multiple pressure plates (106) are respectively located directly above the multiple sets of through slots (101).

2. The assembly fixture for the end cap of a sintered mesh filter element according to claim 1, characterized in that: The first elastic mechanism (2) includes two fixing blocks (201) installed at the bottom of the base (1) and located on both sides of the through groove (101) in the length direction. A first slide rod (202) is connected between the two fixing blocks (201), and the L-shaped clamp rod (102) is slidably installed on the first slide rod (202). A first spring (203) is sleeved on the outer surface of the first slide rod (202), and the two ends of the first spring (203) abut against the fixing block (201) and the L-shaped clamp rod (102) respectively.

3. The assembly fixture for the end cap of a sintered mesh filter element according to claim 1, characterized in that: The separation mechanism (3) includes a second slide rod (301) installed at the bottom of the base (1) and located at the center of the plurality of through slots (101). A sliding sleeve (302) is slidably installed on the outer surface of the second slide rod (301). The sliding sleeve (302) is connected to the bottom of the pressure rod (104) through a connecting plate (303). The outer surface of the sliding sleeve (302) is hinged with a plurality of hinge plates (304), and the ends of the hinge plates (304) are hinged to the L-shaped clamp (102).

4. The assembly fixture for the end cap of a sintered mesh filter element according to claim 1, characterized in that: The second elastic mechanism (4) includes a groove (401) formed on the outer surface of the column (105), a third slide rod (402) is installed inside the groove (401), an extension plate (403) is slidably installed on the outer surface of the third slide rod (402), and the pressure plate (106) is disposed at the end of the extension plate (403); The outer surface of the third slide bar (402) is fitted with a second spring (404), and the two ends of the second spring (404) abut against the top wall of the groove (401) and the upper surface of the extension plate (403), respectively.

5. The assembly fixture for the end cap of a sintered mesh filter element according to claim 4, characterized in that: Ball bearings are provided on the inner wall of the through groove (103) and the outer surface of the extension plate (403).

6. The assembly fixture for the end cap of a sintered mesh filter element according to claim 3, characterized in that: The base (1) has a support column (107) installed at its bottom, and the length of the support column (107) is greater than the length of the second slide bar (301).

7. The assembly fixture for the end cap of a sintered mesh filter element according to claim 1, characterized in that: A pressure block (108) is installed on the top of the pressure rod (104).