Filter element bubble point test clamping device

Abstract

The utility model discloses a clamping device for a bubble point test of a filter element, and relates to the technical field of filter elements. The device comprises a test groove, a frame, a cross beam, a clamping assembly and an air pipe, the U-shaped inverted frame is clamped above the test groove, the cross beam is arranged in the frame, supports are fixed at two ends of the bottom of the cross beam, an arc plate with a major arc-shaped cross section is fixed at the bottom end of each support, and the clamping assembly is rotatably connected in the arc plate; a filter element main body is jointly clamped and fixed in the two clamping assemblies, an air pipe is inserted into the filter element main body, each clamping assembly comprises an annular frame rotationally arranged in the arc plate, clamping plates which are symmetrically distributed are arranged in the annular frame, and base blocks which are symmetrically distributed are fixed to the two end faces of the annular frame. Through the arrangement of the clamping assembly, the cross beam, the frame, the testing groove and the pulley, the problems that a stable and horizontal clamping device is lacked in the filter element testing process, the filter element cannot rotate after being clamped, and bubbles are inconvenient to observe are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to filter elements, and particularly relates to a clamping device for testing the bubble point of a filter element. Background Technique

[0002] A filter element is a professional term with a filtering and purifying function. It is a simple device for purifying the resources of the original fluid and separating resources. It mainly has forms such as gas-liquid separation, solid-liquid separation, exhaust dust filtration, and environmental protection. The filter element separates solid particles in a liquid or gas, or enables different substance components to come into full contact to accelerate the reaction time, which can protect the normal operation of equipment or the cleanliness of the air. When the fluid enters the filter element, its impurities are blocked by the filter material, and the clean fluid flows out through the filter element. The filtering performance of the filter element is mostly determined by the filter material. Before the filter element leaves the factory, certain tests are usually required to ensure the qualification of the product. Under normal conditions, the bubble test method is mostly used to observe the permeability of the filter material, but there are some disadvantages in the actual test process as follows:

[0003] To ensure the uniform passing degree of the filter material, the bubble method is usually used for testing, that is, air is introduced into the filter element, the filter element is placed in a liquid, and it is observed whether the bubbles emerging are uniform and whether there is a phenomenon of locally too large bubbles. If so, the pores of the filter material at the bubble point are too large, and it is an unqualified product; however, this method requires the entire filter element to be inserted into the liquid. To ensure that the gas can pass through the filter element smoothly and uniformly to generate bubbles, it is necessary to ensure that the gas injection amount at each position is the same, so the filter element cannot be placed vertically, and at the same time, the filter element cannot be immersed too deep in the liquid to avoid excessive water pressure. This requires a horizontal and stable clamping device to assist in the test.

[0004] Secondly, when people observe, they usually can only observe one surface and cannot observe the bubble generation situation at each position of the filter element without moving in place. Therefore, it is necessary for the filter element to be able to change a certain position while being clamped. Content of the Utility Model

[0005] The purpose of the utility model is to provide a clamping device for testing the bubble point of a filter element, which solves the problems of lacking a stable and horizontal clamping device during the filter element test and being unable to rotate after clamping, which is inconvenient for observing bubbles by setting a clamping assembly, a cross beam, a frame, a test tank, and a pulley.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a clamping device for testing the bubble point of a filter element, which comprises a test tank, a frame, a cross beam, a clamping assembly and an air pipe. An inverted U-shaped frame is clamped above the test tank. A cross beam is arranged inside the frame. Supports are fixed at both ends of the bottom of the cross beam. An arc plate with a superior arc-shaped cross section is fixed at the bottom end of each support. A clamping assembly is rotatably connected inside the arc plate;

[0008] A filter element body is jointly clamped and fixed inside the two clamping assemblies, and an air pipe is inserted into the filter element body. A plurality of groups of air holes distributed in an annular array are arranged on the outer periphery of the air pipe;

[0009] The clamping assembly includes a ring frame rotatable inside the arc plate. Symmetrically distributed clamping plates are arranged inside the ring frame. Symmetrically distributed base blocks are fixed on both end faces of the ring frame. A plug rod is vertically inserted through each base block. One ends of the two plug rods on the same horizontal line outside both ends of the ring frame, which are close to the center of the ring frame, are fixed to the outer arc surfaces of the clamping plates close to them. Springs are fixed between the opposite faces of the base blocks and the clamping plates.

[0010] Further, clamping grooves are opened at the bottom ends of the vertical parts of the frame. The frame is clamped on both side edges at the upper end of the test tank through the clamping grooves. A cylinder is fixed at the upper end of the horizontal part of the frame. The piston rod at the telescopic end of the cylinder is fixedly connected to the upper end of the cross beam.

[0011] Further, the distance between the two clamping assemblies and the length of the cross beam are both smaller than the length of the test tank, and the clamping assemblies and the cross beam are both located above the test tank.

[0012] Further, pulleys are rotatably connected to both ends of the cross beam. A handle is fixed at one end of the pulley away from the cross beam. A wire groove is opened on the outer periphery of the ring frame. A transmission belt is jointly sleeved in the pulley groove and the wire groove outside the ring frame below it.

[0013] Further, a sliding groove is opened at the center of the outer periphery of the ring frame. Limiting pieces are symmetrically fixed on the inner arc surface of the arc plate, and the limiting pieces and the center of the arc plate are on the same horizontal line. The limiting pieces are placed in the sliding groove and are slidably connected to the ring frame. The cross-sectional dimensions of the limiting pieces and the sliding groove are the same.

[0014] Further, a hook is fixed at one end of the plug rod away from the center of the ring frame. Both ends of the clamping plate extend outside the ring frame. The base blocks and the clamping plates are both arc-shaped structures.

[0015] Further, a sealing cover is fixed at one end of the air pipe. A hose is fixed at one end of the sealing cover away from the air pipe. The sealing cover covers the opening of the filter element body.

[0016] The utility model has the following beneficial effects:

[0017] The utility model solves the problem of the lack of a stable and horizontal clamping device during the filter element test by setting a clamping assembly, a cross beam, a frame, and a test slot. First, two clamping assemblies are used to stably clamp and position the end caps of the filter element body, and the filter media in the middle of the filter element are completely exposed, realizing horizontal clamping in a horizontal position, which is convenient for subsequent test observation. Subsequently, the cylinder on the frame works to lower the cross beam and the structures below it until the filter element body enters the test slot. The air source is connected through a hose, and compressed air is input into the air pipe and evenly ejected from the air holes, so that the air flow distribution inside the filter element body is uniform. The whole process is placed horizontally, and there will be no problem of different pressures, thus starting the bubble point test.

[0018] The utility model solves the problem that during the clamping test of the filter element, the conventional clamping device cannot change its position after clamping and lacks the function of rotation after clamping, which is inconvenient for observation, by setting a clamping assembly, a pulley, and a cross beam. After the filter element body enters the liquid in the test slot, the pulley can be rotated by turning the handle. Under the action of the transmission belt, the linkage ring frame rotates inside the arc plate, thereby forcing the filter element body to rotate, so that the bubble point conditions of all positions of the entire filter element can be observed at the same position. The test slot is made of a transparent material.

[0019] The utility model sets a clamping assembly, and the elastic force of the spring is used to force the clamping plate to clamp the end cap of the filter element body. It has a certain clamping space and can be used to clamp filter element bodies with a variety of different inner diameters. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below.

[0021] Figure 1 It is a three-dimensional view of a clamping device for the bubble point test of a filter element;

[0022] Figure 2 It is a structural connection diagram of the frame and the cross beam;

[0023] Figure 3 It is a structural diagram of the cross beam and the clamping assembly after the frame is sectioned;

[0024] Figure 4 It is a connection structural diagram of the clamping assembly and the bracket;

[0025] Figure 5 It is a structural diagram of the clamping assembly;

[0026] Figure 6 It is a cross-sectional view of the ring frame;

[0027] Figure 7 It is a structural diagram of the arc plate;

[0028] Figure 8It is an exploded view of the filter element and the air pipe.

[0029] Reference numerals:

[0030] 1. Test slot; 2. Frame; 201. Cylinder; 202. Card slot; 3. Cross beam; 301. Bracket; 302. Arc plate; 3021. Limiting member; 303. Pulley; 3031. Handle; 4. Clamping assembly; 401. Ring frame; 4011. Chute; 4012. Wire groove; 402. Base block; 403. Plug rod; 4031. Hook; 404. Clamping plate; 405. Spring; 406. Transmission belt; 5. Filter element body; 6. Air pipe; 601. Cover; 602. Hose; 603. Air hole. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Please refer to Figure 1-8 As shown, the present invention is a clamping device for testing the bubble point of a filter element, including a test slot 1, a frame 2, a cross beam 3, a clamping assembly 4 and an air pipe 6. The frame 2 in an inverted U shape is clamped above the test slot 1. A cross beam 3 is arranged inside the frame 2. At both ends of the bottom of the cross beam 3, brackets 301 are fixed. At the bottom end of each bracket 301, an arc plate 302 with a superior arc cross section is fixed. A clamping assembly 4 is rotatably connected inside the arc plate 302;

[0033] The two clamping assemblies 4 jointly clamp and fix a filter element body 5, and an air pipe 6 is inserted into the filter element body 5. A plurality of groups of air holes 603 distributed in an annular array are formed on the outer circumference of the air pipe 6;

[0034] The end caps of the filter element body 5 are clamped and fixed by the two clamping assemblies 4, and the clamping assembly 4 can rotate inside the inner side of the arc plate 302. When the cylinder 201 on the frame 2 drives the cross beam 3 to descend, the fixed filter element body 5 can be driven to descend, so that the filter element body 5 enters the test slot 1 and is immersed in the liquid in the test slot 1. Compressed air is input into the air pipe 6 and evenly ejected from the air holes 603, so that the air flow distribution inside the filter element body 5 is uniform, and the generation of bubble points is observed;

[0035] The clamping assembly 4 includes a ring frame 401 rotatably arranged inside the arc plate 302. Symmetrically distributed clamping plates 404 are arranged inside the ring frame 401. Base blocks 402 symmetrically distributed are fixed on both end faces of the ring frame 401. Plug rods 403 are vertically inserted through each base block 402. One ends of the two plug rods 403 on the same horizontal line outside the two ends of the ring frame 401 close to the center of the ring frame 401 are fixed to the outer arc surfaces of the clamping plates 404 close to them. Springs 405 are fixed between the opposite faces of the base blocks 402 and the clamping plates 404;

[0036] Use the insertion rod 403 to pull the clamping plate 404 away from the center of the ring frame 401, place the end cap of the filter element body 5 between the two clamping plates 404, then release the insertion rod 403. Under the action of the spring 405, the two clamping plates 404 move closer to each other to clamp and limit the end cap of the filter element body 5 to achieve stable clamping; the end cap of the filter element body 5 is located within the ring frame 401.

[0037] Slots 202 are provided at the bottom ends of the vertical parts of the frame 2. The frame 2 is clamped to the upper sides of both sides of the test slot 1 through the slots 202. A cylinder 201 is fixed to the upper end of the horizontal part of the frame 2. The piston rod at the telescopic end of the cylinder 201 is fixedly connected to the upper end of the cross beam 3; the slots 202 are used to assist in the stability of the connection between the frame 2 and the test slot 1, maintain stable centering, and the operation of the cylinder 201 can drive the lifting of the cross beam 3.

[0038] The distance between the two clamping assemblies 4 and the length of the cross beam 3 are both smaller than the length of the test slot 1, and the clamping assemblies 4 and the cross beam 3 are both located above the test slot 1.

[0039] Pulley 303 is rotatably connected to both ends of the cross beam 3. A handle 3031 is fixed to the end of the pulley 303 away from the cross beam 3. A wire groove 4012 is provided on the outer circumference of the ring frame 401. A transmission belt 406 is jointly sleeved in the groove of the pulley 303 and the wire groove 4012 outside the ring frame 401 below it;

[0040] Rotate the pulley 303 by turning the handle 3031. Under the action of the transmission belt 406, the ring frame 401 is linked to rotate inside the arc plate 302, thereby forcing the filter element body 5 to rotate.

[0041] A chute 4011 is provided at the center of the outer circumference of the ring frame 401. Limiting members 3021 are symmetrically fixed on the inner arc surface of the arc plate 302, and the limiting members 3021 and the center of the arc plate 302 are on the same horizontal line. The limiting members 3021 are placed in the chute 4011 and are slidably connected to the ring frame 401. The cross-sectional dimensions of the limiting members 3021 and the chute 4011 are the same;

[0042] When the ring frame 401 rotates, since the limiting members 3021 are in the chute 4011, the ring frame 401 will rotate along the inner arc surface of the arc plate 302 and will not deviate from its position.

[0043] A hook 4031 is fixed to the end of the insertion rod 403 away from the center of the ring frame 401. Both ends of the clamping plate 404 extend outside the ring frame 401. The base block 402 and the clamping plate 404 are both arc-shaped structures;

[0044] When pulling the insertion rod 403, for convenient operation, a rope can be connected to all the hooks 4031 below or a straight rod can be lapped. By directly pulling down the rope or pressing down the straight rod, the clamping plate 404 below can be synchronously lowered, and the end cover of the filter element body 5 can be quickly placed into the clamping plate 404 to achieve rapid clamping operation.

[0045] One end of the air pipe 6 is fixed with a sealing cover 601. The end of the sealing cover 601 far from the air pipe 6 is fixed with a hose 602. The sealing cover 601 is arranged on the opening of the filter element body 5; the hose 602 is connected to an external air source (such as an air compressor) and has a certain length, and can still carry out air transmission operation after the filter element body 5 rotates one circle. The sealing cover 601 is used to seal the end cover opening of the filter element body 5 to avoid leakage.

[0046] The specific working principle of the present utility model is as follows: First, pull the insertion rod 403. A rope can be connected to all the hooks 4031 below. By directly pulling down the rope, all the hooks 4031 below move downward, all the insertion rods 403 below move downward, driving the lower clamping plate 404 to move downward. At this time, the end cover of the filter element body 5 is placed between the two clamping plates 404 of the two clamping assemblies 4, and then the insertion rod 403 is released. Under the action of the spring 405, the two clamping plates 404 approach each other to clamp and limit the end cover of the filter element body 5 to achieve stable clamping;

[0047] Subsequently, insert the air pipe 6 into the filter element body 5. The sealing cover 601 seals the opening of the end cover of the filter element body 5. Use the cylinder 201 on the frame 2 to work, so that the cross beam 3 and the structure below it descend until the filter element body 5 enters the test tank 1. Connect the air source through the hose 602, input compressed air into the air pipe 6, and uniformly spray it from the air holes 603 to make the air flow distribution in the filter element body 5 uniform, and observe the bubble distribution around the filter element body 5 in the test tank 1;

[0048] Finally, rotate the pulley 303 by turning the handle 3031. Under the action of the transmission belt 406, the ring frame 401 below it rotates inside the arc plate 302, thereby forcing the filter element body 5 to rotate, so that the bubble points of all positions of the entire filter element can be observed at the same position.

[0049] The above is only the preferred embodiment of the present utility model, which does not limit the present utility model. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made all fall within the protection scope of the present utility model.

Claims

1. A filter element bubble point test clamping device, comprising a test slot (1), a frame (2), a crossbeam (3), a clamping assembly (4) and an air pipe (6), characterized in that: An inverted U-shaped frame (2) is clamped above the test slot (1), a crossbeam (3) is arranged inside the frame (2), brackets (301) are fixed at both ends of the bottom of the crossbeam (3), an arc plate (302) with an arc-shaped cross section is fixed at the bottom end of each bracket (301), and a clamping assembly (4) is rotatably connected inside the arc plate (302); A filter element body (5) is clamped and fixed in the two clamping assemblies (4), and an air pipe (6) is inserted into the filter element body (5), and a plurality of groups of air holes (603) distributed in a circular array are provided on the outer circumference of the air pipe (6); The clamping assembly (4) comprises an annular frame (401) that rotates inside an arc plate (302), the annular frame (401) being provided with symmetrically distributed clamping plates (404), both end surfaces of the annular frame (401) being fixed with symmetrically distributed base blocks (402), each base block (402) being vertically penetrated and inserted with an insertion rod (403), two insertion rods (403) located on the same horizontal line outside the two ends of the annular frame (401) being fixed at one end close to the center of the annular frame (401) to the outer arc surface of the clamping plate (404) close thereto, and a spring (405) being fixed between the opposing surfaces of the base block (402) and the clamping plate (404).

2. A filter element bubble point test clamping device according to claim 1, characterized in that: The bottom ends of the vertical parts of the frame (2) are provided with slots (202), and the frame (2) is connected to the two side edges of the upper end of the test slot (1) through the slots (202). The upper end of the horizontal part of the frame (2) is fixed with a cylinder (201), and the piston rod at the telescopic end of the cylinder (201) is fixedly connected to the upper end of the crossbeam (3).

3. A filter element bubble point test clamping device according to claim 1, characterized in that: The distance between the two clamping components (4) and the length of the crossbeam (3) are both smaller than the length of the test slot (1), and the clamping components (4) and the crossbeam (3) are both located above the test slot (1).

4. A filter element bubble point test clamping device according to claim 1, characterized in that: Both ends of the crossbeam (3) are rotatably connected to pulleys (303); a handle (3031) is fixed to one end of the pulley (303) away from the crossbeam (3); a wire groove (4012) is provided on the outer periphery of the ring frame (401); a transmission belt (406) is sleeved in the wheel groove of the pulley (303) and the wire groove (4012) outside the ring frame (401) below the pulley (303).

5. A filter element bubble point test clamping device according to claim 1, characterized in that: A sliding groove (4011) is provided at the center of the outer periphery of the ring frame (401); a limiting member (3021) is symmetrically fixed on the inner arc surface of the arc plate (302); the limiting member (3021) and the center of the arc plate (302) are on the same horizontal line; the limiting member (3021) is placed in the sliding groove (4011) and is slidably connected to the ring frame (401); and the cross-sectional dimensions of the limiting member (3021) and the sliding groove (4011) are the same.

6. A filter element bubble point test clamping device according to claim 1, characterized in that: A hook (4031) is fixed to one end of the insertion rod (403) away from the center of the ring frame (401), and both ends of the clamping plate (404) extend out of the ring frame (401). Both the base block (402) and the clamping plate (404) are arc-shaped structures.

7. A filter element bubble point test clamping device according to claim 1, characterized in that: A sealing cover (601) is fixed to one end of the air pipe (6), a hose (602) is fixed to the end of the sealing cover (601) away from the air pipe (6), and the sealing cover (601) is arranged to cover the opening of the filter element body (5).

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