Anti-loose filter cartridge sealing device

Abstract

The utility model provides a kind of anti-loose filter core sealing device, comprising: a filter core;A connecting bracket, the connecting bracket is installed in filter core, the front end of the connecting bracket has a guide cylinder, a pull rod is movably connected in the guide cylinder, the pull rod end has a locating block, the locating block is fixed in pull rod end, the pull rod is equipped with a reset spring, the reset spring is located between guide cylinder and locating block;First sealing mechanism, the first sealing mechanism includes the sealing base fixed in the one end of connecting bracket, the sealing base is pressed on the end face of one end of filter core;Second sealing mechanism, the second sealing mechanism includes a sealing cover plate, the pull rod passes through the sealing cover plate, a pressing nut is also threadedly connected on the pull rod, the pressing nut is pressed on the sealing cover plate.The sealing device structure is simple, through the pull rod's pull effect, can keep sealing cover plate tightly pressed on filter core, avoid gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of natural gas filtration, and in particular to an anti-loosening filter element sealing device. Background Technology

[0002] In today's petrochemical industry, filter separators are a crucial piece of mechanical equipment with a wide range of applications. This equipment uses a filter element as its core component, and its main function is to filter out tiny solid particles and droplets mixed in with natural gas. When the filter element is installed in the filter cylinder via a sealed base, one end is tied together by a tie rod. In existing tie rod structures, the sealing cover plate fixedly connected to the tie rod can loosen after prolonged use, leading to a poor seal at the tie end of the filter element and causing gas leakage during filtration. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an anti-loosening filter element sealing device. This sealing device has a simple structure and, through the pulling action of the pull rod, can keep the sealing cover tightly pressed onto the filter element, preventing gas leakage.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an anti-loosening filter element sealing device, comprising:

[0005] One filter element;

[0006] A connecting bracket is installed in the filter element. The front end of the connecting bracket has a guide cylinder, and a pull rod is movably connected in the guide cylinder. The end of the pull rod has a positioning block, which is fixed to the end of the pull rod. A return spring is sleeved on the pull rod and is located between the guide cylinder and the positioning block.

[0007] The first sealing mechanism includes a sealing base fixed to one end of the connecting bracket, and the sealing base is pressed against the end face of one end of the filter element.

[0008] The second sealing mechanism includes a sealing cover plate, through which the pull rod passes, and a clamping nut is threadedly connected to the pull rod, the clamping nut being pressed against the sealing cover plate.

[0009] Furthermore, the connecting bracket is a Z-shaped bracket, with a notch at the front end of the Z-shaped bracket, and the guide cylinder is fixed in the notch.

[0010] Furthermore, a connecting hole is provided in the positioning block, and the positioning block is fixedly connected to the pull rod through the connecting hole and the connecting bolt.

[0011] Furthermore, a gasket is provided between the clamping nut and the sealing cover.

[0012] Furthermore, the sealing cover includes a plate body, the plate body having a boss, and the boss having a guide slope.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The sealing device has a simple structure. Through the pulling action of the tie rod, it can keep the sealing cover tightly pressed on the filter element, preventing the sealing cover from loosening and avoiding leakage due to poor sealing when filtering gas.

[0015] 2. The connecting bracket adopts a Z-type bracket. During the operation of the filter, the filter element will be subjected to the pressure of the fluid and other forces. The Z-type bracket can prevent the filter element from deforming or being damaged due to excessive pressure.

[0016] 3. By opening a connecting hole in the positioning block, the positioning block and the tie rod can be fixedly connected by connecting bolts, so that the tie rod can pass smoothly through the guide cylinder, and it is also more convenient to disassemble. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2 This is a connection structure diagram of the connecting bracket, tie rod, and positioning block of this utility model;

[0019] Figure 3 for Figure 1 Enlarged view of section A.

[0020] In the diagram: 1. Filter element; 2. Connecting bracket; 3. Guide cylinder; 4. Pull rod; 5. Positioning block; 6. Return spring; 7. Sealing base; 8. Sealing cover plate; 9. Compression nut; 10. Notch; 11. Connecting hole; 12. Gasket; 13. Guide slope; 14. Connecting bolt; Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-3 The anti-loosening filter element sealing device shown includes:

[0023] Filter element 1;

[0024] A connecting bracket 2 is installed in the filter element 1. The front end of the connecting bracket 2 has a guide cylinder 3. A pull rod 4 is movably connected in the guide cylinder 3. The end of the pull rod 4 has a positioning block 5. The positioning block 5 is fixed to the end of the pull rod. A return spring 6 is sleeved on the pull rod 4. The return spring 6 is located between the guide cylinder 3 and the positioning block 5.

[0025] The first sealing mechanism includes a sealing base 7 fixed to one end of the connecting bracket 2, and the sealing base 7 is pressed against the end face of one end of the filter element 1; when filtering gas, gas enters the filter element 1 through the air inlet in the sealing base.

[0026] The second sealing mechanism includes a sealing cover plate 8, through which the pull rod 4 passes. A clamping nut 9 is also threaded onto the pull rod 4, and the clamping nut 9 is pressed against the sealing cover plate 8.

[0027] The process of using this utility model is as follows: First, a connecting bracket 2 is installed in the filter element 1. The sealing base 7 fixed at one end of the connecting bracket 2 is pressed against the end face of one end of the filter element 1. At the other end of the connecting bracket 2, the pull rod 4 is first passed through the guide cylinder 3, and then the spring is sleeved on the outside of the pull rod 4. Then, the positioning block 5 is fixedly connected to the pull rod 4. The other end of the pull rod 4 passes through the sealing cover plate 8, so that the sealing cover plate 8 is pressed against the end face of the other end of the filter element 1. In this structure of the filter element 1 sealing device, the compression spring on it will continuously push the positioning block 5. Since the positioning block 5 is fixedly connected to the pull rod 4, it will continuously push the pull rod 4 to the other side. Under the action of the pull rod 4, the clamping nut 9 on the pull rod 4 will be pressed against the sealing cover plate 8, so that the sealing cover plate 8 remains sealed. After long-term use, it will not loosen and will not cause leakage of the filter element 1.

[0028] Furthermore, the connecting bracket 2 is a Z-shaped bracket, with a notch 10 at its front end, and the guide cylinder 3 is fixed in the notch 10. Specifically, the connecting bracket 2 of this utility model adopts a Z-shaped bracket. During the operation of the filter, the filter element 1 is subjected to forces such as fluid pressure. The Z-shaped bracket can support and position the filter element, preventing the filter element 1 from deforming or being damaged due to excessive pressure, thereby improving the load-bearing capacity and service life of the filter element 1.

[0029] Furthermore, a connecting hole 11 is provided in the positioning block 5, and the positioning block 5 is fixedly connected to the pull rod 4 through the connecting hole 11 and the connecting bolt 14. Specifically, in this utility model, a connecting hole 11 is provided in the positioning block 5, and the pull rod 4 is fixedly connected to the connecting hole 11 on the positioning block through the connecting bolt 14 (the pull rod 4 also has a connecting hole, and the connecting bolt 14 is tightened by a nut). In this way, it is quicker and more convenient to assemble and connect them, and it is convenient to remove the pull rod 4 after removing the positioning block 5 during later maintenance and disassembly.

[0030] Furthermore, a gasket 12 is provided between the clamping nut 9 and the sealing cover plate 8. Specifically, the present invention provides a gasket 12 between the clamping nut 9 and the sealing cover plate 8. The sealing cover plate 8 is clamped by the gasket 12, which can increase the contact area between the gasket 12 and the sealing cover plate 8 and prevent damage to the sealing cover plate 8.

[0031] Furthermore, the sealing cover 8 includes a plate body with a boss and a guide slope 13 on the boss. Specifically, the sealing cover 8 has a boss, which allows the boss to enter the filter element 1, with the outer wall of the boss contacting the inner wall of the filter element 1 to improve sealing. The guide slope 13 on the boss also acts as a guide, ensuring the boss smoothly enters the filter element 1.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A filter element sealing device for preventing loosening, characterized in that, Comprising: A filter element; A connecting bracket, the connecting bracket is installed in the filter element, the front end of the connecting bracket has a guiding cylinder, a pull rod is movably connected in the guiding cylinder, a positioning block is provided at the end of the pull rod, the positioning block is fixed at the end of the pull rod, a return spring is sleeved outside the pull rod, and the return spring is located between the guiding cylinder and the positioning block; A first sealing mechanism, the first sealing mechanism includes a sealing base fixed at one end of the connecting bracket, and the sealing base presses against the end face of one end of the filter element; A second sealing mechanism, the second sealing mechanism includes a sealing cover plate, the pull rod passes through the sealing cover plate, and a pressing nut is also threadedly connected to the pull rod, and the pressing nut presses against the sealing cover plate.

2. The anti-loosening filter element sealing device according to claim 1, characterized in that: The connecting bracket is a Z-shaped bracket, a notch is provided at the front end of the Z-shaped bracket, and the guiding cylinder is fixed in the notch.

3. The anti-loosening filter element sealing device according to claim 2, characterized in that: A connecting hole is provided in the positioning block, and the positioning block is fixedly connected to the pull rod through the connecting hole and a connecting bolt.

4. The anti-loosening filter element sealing device according to claim 3, characterized in that: A gasket is further provided between the pressing nut and the sealing cover plate.

5. The anti-loosening filter element sealing device according to claim 4, characterized in that: The sealing cover plate includes a plate body, a boss is provided on the plate body, and a guiding inclined surface is provided on the boss.

Images