Sealing mechanism for liquid bath type air filter

Abstract

The utility model discloses a sealing mechanism for a liquid tank type air filter, which belongs to the technical field of sealing of filters and comprises a liquid tank, a filter element is arranged in the liquid tank, a sealing cover for sealing the liquid tank is arranged on one side of the liquid tank, a sealing groove surrounding the side surface is arranged on one side, facing the sealing cover, of the liquid tank, and a moving cavity is arranged in the sealing cover. A sealing ring plate matched with the sealing groove is slidably mounted in the moving cavity, the sealing ring plate is composed of a sealing ring and a moving plate, the internal filter element can be observed through the observation window and then replaced according to needs, the sealing cover is mounted on the liquid tank, and then through the push rod, the filter element can be conveniently replaced. When the sealing cover is installed, the sealing ring plate contained in the sealing cover is pushed into the sealing groove of the liquid groove, the liquid groove with the filter element replaced is sealed, and when the sealing cover is installed, due to the fact that the sealing ring plate is arranged in the sealing cover, unnecessary friction between the sealing ring plate and the liquid groove is reduced, abrasion is reduced, and the sealing performance after the sealing ring plate is installed is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter sealing, and in particular relates to a sealing mechanism for a liquid tank type air filter. Background Art

[0002] Liquid tank air filters are widely used in the air supply of air conditioners in dust-free purification workshops in optical electronics, LCD manufacturing, biomedicine, precision instruments, beverages and food industries, and are an indispensable and important part of the field of air purification equipment. Liquid tank air filters are mainly used to capture dust particles below 0.5um and various suspended matter.

[0003] The existing liquid tank air filter needs to replace the filter element after being used for a period of time to ensure the filtering effect. The sealing door needs to be opened and closed when replacing the filter element. However, after the sealing door of the filter is opened and the filter element is replaced many times, the sealing door is disassembled many times and constantly rubs against the filter housing, causing certain wear and tear, resulting in reduced sealing of the sealing door.

[0004] Therefore, we propose a sealing mechanism for a liquid tank type air filter to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem of low sealing effect in the prior art and proposes a sealing mechanism for a liquid tank type air filter.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sealing mechanism for a liquid tank type air filter comprises a liquid tank, a filter element is arranged in the liquid tank, a sealing cover is arranged on one side of the liquid tank for sealing the liquid tank, a sealing groove surrounding the side is opened on the side of the liquid tank facing the sealing cover, a movable cavity is arranged in the sealing cover, a sealing ring plate adapted to the sealing groove is slidably installed in the movable cavity, a push rod penetrating the sealing cover is fixedly connected to the side of the sealing ring plate facing away from the liquid tank, an installation cavity communicating with the movable cavity is arranged at the bottom of the sealing cover, a locking assembly for pushing the sealing ring plate into the sealing groove for self-locking is arranged in the installation cavity, and observation windows for observing the cleanliness of the internal filter element are arranged on both sides of the liquid tank.

[0008] Preferably, the locking assembly includes a first wedge block and a second wedge block abutting against the first wedge, the first wedge block is fixedly connected to the bottom end of one side of the sealing ring plate, a telescopic rod is fixedly connected between the second wedge block and the inner wall of the installation cavity, and a second spring sleeved on the outside of the telescopic rod is fixedly connected between the second wedge block and the inner wall of the installation cavity.

[0009] Preferably, an L-shaped pressure plate is fixedly connected to the side of the second wedge block facing away from the liquid tank, a mounting groove with the same mounting cavity is opened on one side of the sealing cover, a guide rod is fixedly connected between the upper and lower bottoms of the mounting groove, the horizontal end of the L-shaped pressure plate is slidably sleeved on the guide rod, and one side of the horizontal end extends into the mounting groove.

[0010] Preferably, the inner top wall of the mounting groove is beveled.

[0011] Preferably, a connecting rod connected to the push rod is fixedly connected to one side of the sealing ring plate, and a first spring sleeved on the outside of the push rod is fixedly connected between the connecting rod and the side wall of the moving chamber.

[0012] Preferably, positioning grooves are provided at both the upper and lower ends of one side of the liquid tank, and positioning strips inserted into the positioning grooves are fixedly connected at both the upper and lower ends of the side of the sealing cover adjacent to the liquid tank.

[0013] To sum up, the technical effects and advantages of the utility model are as follows: by setting the sealing ring plate, the push rod and the sealing groove, by installing the sealing cover on the liquid tank, and then using the push rod to push the sealing ring plate received in the sealing cover into the sealing groove of the liquid tank, the liquid tank can be sealed after the filter element is replaced, and when the sealing cover is installed, since the sealing ring plate is in the sealing cover, unnecessary friction with the liquid tank is reduced, and wear is reduced. At the same time, since the sealing groove is deeper, the sealing performance of the sealing ring plate after installation is improved; through the locking assembly that is set, the sealing ring plate pushed into the sealing groove is locked to prevent the sealing ring plate from falling off and affecting the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a sealing mechanism for a liquid tank type air filter;

[0015] Figure 2 A cross-sectional view of a sealing mechanism for a liquid tank type air filter;

[0016] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 4 A schematic diagram of a sealing mechanism connection structure for a liquid tank type air filter;

[0018] Figure 5 The present invention is a back view of a sealing ring plate in a sealing mechanism for a liquid tank type air filter.

[0019] In the figure: 1. liquid tank; 2. sealing cover; 3. observation window; 4. push rod; 5. installation groove; 6. filter element; 7. sealing ring plate; 8. connecting rod; 9. first spring; 10. moving cavity; 11. positioning strip; 12. positioning groove; 13. sealing groove; 14. first wedge block; 15. second wedge block; 16. telescopic rod; 17. second spring; 18. guide rod; 19. L-shaped pressure plate; 20. installation cavity. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Reference Figure 1-Figure 3 A sealing mechanism for a liquid tank type air filter comprises a liquid tank 1, a filter element 6 is arranged in the liquid tank 1, a sealing cover 2 is arranged on one side of the liquid tank 1 to seal the liquid tank 1, a sealing groove 13 surrounding the side of the liquid tank 1 facing the sealing cover 2 is opened, a movable cavity 10 is arranged in the sealing cover 2, a sealing ring plate 7 adapted to the sealing groove 13 is slidably installed in the movable cavity 10, the sealing ring plate 7 is composed of a sealing ring and a movable plate, a push rod 4 penetrating the sealing cover 2 is fixedly connected to the side of the sealing ring plate 7 facing away from the liquid tank 1, the sealing ring plate 7 is pushed out of the sealing cover 2 by the push of the push rod 4, an installation cavity 20 communicating with the movable cavity 10 is arranged in the installation cavity 20 There is a locking assembly for pushing the sealing ring plate 7 into the sealing groove 13 for self-locking. Both sides of the liquid tank 1 are provided with observation windows 3 for observing the cleanliness of the internal filter element 6. The internal filter element 6 can be observed through the observation window 3 and then replaced as needed. By installing the sealing cover 2 on the liquid tank 1, and then using the push rod 4 to push the sealing ring plate 7 received in the sealing cover 2 into the sealing groove 13 of the liquid tank 1, the liquid tank 1 after the filter element 6 is replaced is sealed. When the sealing cover 2 is installed, since the sealing ring plate 7 is in the sealing cover 2, unnecessary friction with the liquid tank 1 is reduced, and wear is reduced. At the same time, since the sealing groove 13 is deeper, the sealing performance of the sealing ring plate 7 after installation is improved.

[0023] Reference Figure 3The locking assembly includes a first wedge block 14 and a second wedge block 15 that abuts against the first wedge. The first wedge block 14 is fixedly connected to the bottom end of one side of the sealing ring plate 7, and the first wedge block 14 extends into the installation cavity 20. A telescopic rod 16 is fixedly connected between the second wedge block 15 and the inner wall of the installation cavity 20, and a second spring 17 that is sleeved on the outer side of the telescopic rod 16 is fixedly connected between the second wedge block 15 and the inner wall of the installation cavity 20. The sealing ring plate 7 is pushed by the push rod 4 so that the sealing ring on the sealing ring plate 7 is embedded in the sealing groove 13 of the liquid tank 1. At the same time, the first wedge block 14 at the bottom of the sealing ring plate 7 will squeeze the second wedge block 15 to compress the telescopic rod 16 and the second spring 17. When the first wedge block 14 abuts against the second wedge block 15, the sealing ring plate 7 is completely installed in the sealing groove 13. Since the second wedge block 15 abuts against the first wedge block 14, the sealing performance of the sealing ring plate 7 after installation is improved.

[0024] Reference Figure 3 The second wedge block 15 is fixedly connected with an L-shaped pressing plate 19 on the side facing away from the liquid tank 1. A mounting groove 5 having the same mounting cavity 20 is opened on one side of the sealing cover 2. A guide rod 18 is fixedly connected between the upper and lower bottoms of the mounting groove 5. The horizontal end of the L-shaped pressing plate 19 is slidably sleeved on the guide rod 18. When the L-shaped pressing rod is pressed down, the guide rod 18 improves the stability of the downward pressure, and one side of the horizontal end extends into the mounting groove 5. When the filter element 6 needs to be replaced, first pass through the mounting groove 5 and press down one end of the L-shaped pressing plate 19. When the L-shaped pressing plate 19 descends, the second wedge block 15 is descended, and the sealing ring plate 7 is taken out of the sealing groove 13 of the liquid tank 1.

[0025] Reference Figure 3 The inner top wall of the mounting groove 5 is an oblique opening, which facilitates pressing down the L-shaped pressing plate 19.

[0026] Reference Figure 5 A connecting rod 8 connected to the push rod 4 is fixedly connected to one side of the sealing ring plate 7. The connecting rod 8 has two components of different lengths. The sealing ring plate 7 is pushed by the push rod 4, and the stability of the sealing ring plate 7 is improved by the connecting rod 8. A first spring 9 sleeved on the outside of the push rod 4 is fixedly connected between the connecting rod 8 and the side wall of the moving chamber 10. When the first wedge block 14 is pushed by the sealing ring plate 7, it is abutted against the second wedge block 15. When the second wedge block 15 moves downward, the first spring 9 will pull the sealing ring plate 7 back into the sealing cover 2, and the push rod 4 will be pushed out of the sealing cover 2, which is convenient for the next push and use.

[0027] Reference Figure 4 A positioning groove 12 is provided at both the upper and lower ends of one side of the liquid tank 1, and a positioning strip 11 inserted into the positioning groove 12 is fixedly connected at the upper and lower ends of the side of the sealing cover 2 adjacent to the liquid tank 1. The positioning strip 11 on the sealing cover 2 is first connected to the positioning groove 12 of the liquid tank 1 to achieve the installation of the sealing cover 2 and the liquid tank 1.

[0028] Working principle:

[0029] Replace the filter element 6 in the liquid tank 1, then connect the positioning strip 11 on the sealing cover 2 with the positioning groove 12 of the liquid tank 1 to install the sealing cover 2 and the liquid tank 1, and then push the sealing ring plate 7 through the push rod 4 to embed the sealing ring on the sealing ring plate 7 into the sealing groove 13 of the liquid tank 1. At the same time, the first wedge block 14 at the bottom of the sealing ring plate 7 will squeeze the second wedge block 15 to compress the telescopic rod 16 and the second spring 17. When the first wedge block 14 and the second wedge block 15 are against each other, the sealing ring plate 7 is completely installed in the sealing groove 13. Since the second wedge block 15 and the first wedge block 14 are against each other, the sealing performance of the sealing ring plate 7 after installation is improved.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sealing mechanism for a liquid tank type air filter, comprising a liquid tank (1), characterized in that: A filter element (6) is arranged in the liquid tank (1), a sealing cover (2) for sealing the liquid tank (1) is arranged on one side of the liquid tank (1), a sealing groove (13) surrounding the side of the liquid tank (1) facing the sealing cover (2) is provided, a movable cavity (10) is arranged in the sealing cover (2), a sealing ring plate (7) matching the sealing groove (13) is slidably installed in the movable cavity (10), a push rod (4) penetrating the sealing cover (2) is fixedly connected to the side of the sealing ring plate (7) facing away from the liquid tank (1), a mounting cavity (20) communicating with the movable cavity (10) is arranged at the bottom of the sealing cover (2), a locking assembly for pushing the sealing ring plate (7) into the sealing groove (13) for self-locking is arranged in the mounting cavity (20), and observation windows (3) for observing the cleanliness of the internal filter element (6) are arranged on both sides of the liquid tank (1).

2. A sealing mechanism for a liquid tank type air filter according to claim 1, characterized in that: The locking assembly comprises a first wedge block (14) and a second wedge block (15) abutting against the first wedge, the first wedge block (14) being fixedly connected to the bottom end of one side of the sealing ring plate (7), a telescopic rod (16) being fixedly connected between the second wedge block (15) and the inner wall of the installation cavity (20), and a second spring (17) sleeved on the outer side of the telescopic rod (16) being fixedly connected between the second wedge block (15) and the inner wall of the installation cavity (20).

3. A sealing mechanism for a liquid tank type air filter according to claim 2, characterized in that: An L-shaped pressing plate (19) is fixedly connected to the side of the second wedge-shaped block (15) facing away from the liquid tank (1), a mounting groove (5) identical to the mounting cavity (20) is provided on one side of the sealing cover (2), a guide rod (18) is fixedly connected between the upper and lower bottoms of the mounting groove (5), a horizontal end of the L-shaped pressing plate (19) is slidably sleeved on the guide rod (18), and one side of the horizontal end extends into the mounting groove (5).

4. A sealing mechanism for a liquid tank type air filter according to claim 3, characterized in that: The inner top wall of the installation groove (5) is an oblique opening.

5. A sealing mechanism for a liquid tank type air filter according to claim 1, characterized in that: A connecting rod (8) connected to the push rod (4) is fixedly connected to one side of the sealing ring plate (7), and a first spring (9) sleeved on the outside of the push rod (4) is fixedly connected between the connecting rod (8) and the side wall of the moving chamber (10).

6. A sealing mechanism for a liquid tank type air filter according to claim 1, characterized in that: Positioning grooves (12) are provided at both the upper and lower ends of one side of the liquid tank (1), and positioning strips (11) inserted into the positioning grooves (12) are fixedly connected at both the upper and lower ends of the side of the sealing cover (2) adjacent to the liquid tank (1).

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