Long-acting filtering absorber

Abstract

The long-acting filtering absorber comprises a shell and two inlet and outlet pipes arranged at the two ends of the shell, the ends, opposite to the shell, of the two inlet and outlet pipes are fixedly connected with sealing chambers, and the sides, opposite to the inlet and outlet pipes, of the two sealing chambers are fixedly connected with connecting pipes. Blocking assemblies for sealing the inlet and outlet pipes are arranged in the two sealing chambers; the blocking assembly comprises a sealing plate movably connected between the inlet and outlet pipe and the connecting pipe, a sealing gasket fixedly connected to the side, close to the inlet and outlet pipe, of the sealing plate, and two moving assemblies symmetrically arranged in the sealing chamber and located between the sealing plate and the connecting pipe. The moving assembly is connected with the sealing plate and can drive the sealing plate to horizontally move in the sealing chamber so as to cover or separate from the end of the inlet and outlet pipe. Through the structure, the joint of the inlet and outlet pipe and the sealing chamber can be sealed, so that a filter element in the filtering absorber is prevented from being affected with damp and losing efficacy when the filtering absorber is not used, and the long-term, efficient and stable filtering effect of the filtering absorber is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filter absorbers, in particular to a long-acting filter absorber. Background Art

[0002] The filter absorber is a device used to filter the air. It is mainly used in the drug-related ventilation system of civil air defense projects. It can effectively filter out harmful substances such as toxic smoke, toxic mist, bioaerosols, radioactive dust, persistent toxic agent vapor, etc. in the contaminated air, and provide filtered clean air to personnel in civil air defense projects.

[0003] The filter absorber installed on the ventilation duct must close the valves before and after the filter absorber when not in use to prevent it from becoming ineffective due to moisture. The existing filter absorber adopts a conventional valve structure. When not in use, the valves at both ends of the filter absorber need to be closed in sequence. Similarly, when the filter absorber needs to be used, the valves at both ends need to be opened in sequence. This method is cumbersome and time-consuming to operate. When encountering an emergency, the use state of the filter absorber cannot be switched in time, which poses a safety hazard. Therefore, those skilled in the art provide a long-lasting filter absorber to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a long-acting filter absorber, in which a sealing plate and a sealing gasket are arranged inside a sealed chamber and at the connection between an inlet and outlet pipe and the sealed chamber. The sealing plate can be driven to move to the inlet and outlet pipe by a moving assembly, and the connection between the inlet and outlet pipe and the sealed chamber can be sealed by the sealing plate to prevent the filter element inside the filter absorber from becoming damp and failing when not in use for a long time, thereby ensuring the long-term, efficient and stable filtering effect of the filter absorber, realizing rapid communication or sealing operation between the inside of the shell and the external environment, and having simple operation and convenient use.

[0005] To achieve the above object, a long-term filtering absorber is provided, comprising a shell and two inlet and outlet pipes arranged at both ends of the shell, wherein the ends of the two inlet and outlet pipes opposite to the shell are fixedly connected to a sealing chamber, the sides of the two sealing chambers opposite to the inlet and outlet pipes are fixedly connected to a connecting pipe, and the insides of the two sealing chambers are provided with a sealing assembly for sealing the inlet and outlet pipes;

[0006] The sealing assembly includes a sealing plate movably connected between the inlet and outlet pipes and the connecting pipe, a sealing gasket fixedly connected to the sealing plate on one side close to the inlet and outlet pipes, and two movable assemblies symmetrically arranged inside the sealing chamber and located between the sealing plate and the connecting pipe. The movable assembly is connected to the sealing plate and can drive the sealing plate to move horizontally inside the sealing chamber to achieve covering or separation with the ends of the inlet and outlet pipes.

[0007] According to the long-lasting filtering absorber described, the moving component includes a first guide rod fixedly connected to the inside of the sealing chamber, two elastic components arranged on the outside of the first guide rod, a first connecting plate and a guide component, the elastic component includes a first movable plate slidably connected to the outside of the first guide rod, a first connecting rod slidably connected to the inside of the first movable plate and located below the first guide rod, a fixed plate fixedly connected to the outside of the first connecting rod and a spring sleeved on the outside of the first connecting rod and located between the first movable plate and the fixed plate, one end of the first connecting rod close to the fixed plate is fixedly connected to the sealing plate, the ends of the two first connecting rods opposite to the sealing plate are commonly fixedly connected to the first connecting plate, and the guide component is connected to the first connecting plate.

[0008] According to the long-lasting filtering absorber described, the guide assembly includes a second guide rod fixedly connected to the inside of the sealing chamber and located on one side of the first connecting plate, a second movable plate, a raised plate fixedly connected to the outside of the second guide rod and away from the first connecting plate, a guide plate fixedly connected to the raised plate at one end close to the second movable plate, a second slide groove opened in the second movable plate and a control assembly for driving the second movable plate to move, the second movable plate is fixedly connected to the first connecting plate, the second guide rod is inserted into the second slide groove, and the horizontal lateral length of the second slide groove is greater than the total horizontal lateral length of the second guide rod and the raised plate.

[0009] According to the long-lasting filter absorber, the control component includes a first slide groove opened inside the second movable plate and located above the second guide rod, a second connecting rod inserted into the first slide groove, and two limit plates arranged on both sides of the first slide groove, one of the limit plates is fixedly connected to the end of the second connecting rod, the other end of the second connecting rod extends to the outside of the sealing chamber, and the other limit plate is fixedly connected to the outside of the second connecting rod.

[0010] According to the long-lasting filtering absorber, one end of each two adjacent second connecting rods located in the sealing chamber is commonly and fixedly connected to a second connecting plate.

[0011] According to the long-lasting filter absorber, an operating plate is fixedly connected between the two second connecting plates.

[0012] The utility model has the following beneficial effects:

[0013] 1. Compared with the prior art, this long-lasting filter absorber is provided with a sealing plate and a sealing gasket inside the sealed chamber and at the connection between the inlet and outlet pipes and the sealed chamber. The sealing plate can be driven to move to the inlet and outlet pipes by a moving assembly, and the connection between the inlet and outlet pipes and the sealed chamber can be sealed by the sealing plate to prevent the filter element inside the filter absorber from becoming damp and failing when not in use for a long time, thereby ensuring the long-term, efficient and stable filtering effect of the filter absorber, realizing the rapid communication or sealing operation between the inside of the shell and the external environment, and having simple operation and convenient use.

[0014] 2. Compared with the prior art, this long-lasting filter absorber, by setting a moving component to drive the sealing plate to move on one side of the inlet and outlet pipes, the sealing plate can be separated and moved from the inner wall of the sealing chamber to prevent the sealing gasket from rubbing against the inner wall of the sealing chamber for a long time when the sealing plate moves, thereby affecting the service life, which is beneficial to ensure a good sealing effect inside the shell.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of a long-acting filter absorber of the utility model;

[0018] Figure 2 This is a schematic diagram of the first internal cross-sectional structure of a sealed chamber of a long-acting filter absorber of the utility model;

[0019] Figure 3 This is a schematic diagram of the second internal cross-sectional structure of a sealed chamber of a long-acting filter absorber of the utility model;

[0020] Figure 4 The utility model is a long-acting filter absorber Figure 2 Enlarged structural diagram at A in the middle.

[0021] Legend:

[0022] 1. Shell; 2. Inlet and outlet pipes; 3. Sealing chamber; 4. Connecting pipe; 5. First guide rod; 6. First movable plate; 7. First connecting rod; 8. Fixed plate; 9. Spring; 10. Sealing plate; 11. Sealing pad; 12. Second guide rod; 13. First connecting plate; 14. Second connecting rod; 15. Second connecting plate; 16. Operating plate; 17. Raised plate; 18. Second movable plate; 19. Guide plate; 20. First slide groove; 21. Limiting plate; 22. Second slide groove. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1 , Figure 2 and Figure 3 The utility model embodiment is a long-lasting filtering absorber, which includes a shell 1 and two inlet and outlet pipes 2 arranged at both ends of the shell 1, the two inlet and outlet pipes 2 are fixedly connected to the ends opposite to the shell 1 with a sealing chamber 3, the two sealing chambers 3 are fixedly connected to the sides opposite to the inlet and outlet pipes 2 with a connecting pipe 4, and the two sealing chambers 3 are provided with sealing components for sealing the inlet and outlet pipes 2; the sealing components include a sealing plate 10 movably connected between the inlet and outlet pipes 2 and the connecting pipe 4, a sealing gasket 11 fixedly connected to the sealing plate 10 on the side close to the inlet and outlet pipes 2, and two moving components symmetrically arranged inside the sealing chamber 3 and located between the sealing plate 10 and the connecting pipe 4, the moving components are connected to the sealing plate 10 and can drive the sealing plate 10 to move horizontally inside the sealing chamber 3 to achieve covering or separation with the ends of the inlet and outlet pipes 2;

[0025] Specifically, the connecting pipe 4 can be connected to the external inlet and outlet pipes, so that a closed flow space can be formed between the connecting pipe 4, the sealed chamber 3 and the shell 1. When the filter absorber needs to be used, the sealing plate 10 can be driven to move to one side of the inlet and outlet pipes 2 under the action of the moving assembly, so that the connecting pipe 4 and the inlet and outlet pipes 2 can achieve gas circulation. When the filter absorber is not in use, a sealing plate 10 and a sealing gasket 11 are arranged inside the sealed chamber 3 and at the connection between the inlet and outlet pipes 2 and the sealed chamber 3. The sealing plate 10 can be driven to move to the inlet and outlet pipes 2 by the moving assembly, and the connection between the inlet and outlet pipes 2 and the sealed chamber 3 can be sealed by the sealing plate 10 to prevent the internal filter element of the filter absorber from becoming damp and failing when not in use for a long time. The shell 1 can be quickly connected or closed with the external environment, and the operation is simple and convenient.

[0026] Reference Figure 2 and Figure 3, the moving assembly includes a first guide rod 5 fixedly connected to the inside of the sealing chamber 3, two elastic assemblies arranged on the outside of the first guide rod 5, a first connecting plate 13 and a guide assembly, the elastic assembly includes a first movable plate 6 slidably connected to the outside of the first guide rod 5, a first connecting rod 7 slidably connected to the inside of the first movable plate 6 and located below the first guide rod 5, a fixed plate 8 fixedly connected to the outside of the first connecting rod 7 and a spring 9 sleeved on the outside of the first connecting rod 7 and located between the first movable plate 6 and the fixed plate 8, one end of the first connecting rod 7 close to the fixed plate 8 is fixedly connected to the sealing plate 10, the ends of the two first connecting rods 7 opposite to the sealing plate 10 are fixedly connected to the first connecting plate 13, and the guide assembly is connected to the first connecting plate 13;

[0027] Specifically, the first connecting plate 13 can move forward and backward inside the sealing chamber 3 under the action of the guide assembly. When the first connecting plate 13 moves, it drives the first movable plate 6 to move outside the first guide rod 5, thereby better driving the sealing plate 10 to move forward and backward inside the sealing chamber 3. The sealing plate 10 moving backward can move to the side of the inlet and outlet pipe 2 to seal the inlet and outlet pipe 2, and the sealing plate 10 moving forward can be separated from the inlet and outlet pipe 2 to ensure the connection between the connecting pipe 4 and the inlet and outlet pipe 2. The first connecting plate 13 can be moved left and right under the action of the guide assembly. When the first connecting plate 13 moves toward the front side, it also moves to the side away from the inlet and outlet pipes 2, so that the sealing plate 10 is separated from the inner wall of the sealing chamber 3 to prevent the sealing gasket 11 from rubbing against the inner wall of the sealing chamber 3 and affecting the use when the sealing plate 10 moves. When the first connecting plate 13 moves toward the rear side, it also moves to the side close to the inlet and outlet pipes 2. Under the action of the spring 9, the sealing plate 10 can be better pushed to fit the inner wall of the sealing chamber 3, so that the inlet and outlet pipes 2 can be well sealed through the sealing plate 10, ensuring that the closure of the shell 1 can prevent the internal filter element from becoming damp and failing, thereby ensuring the long-term, efficient and stable filtering effect of the filter absorber.

[0028] Reference Figure 2 , Figure 3 and Figure 4 The guide assembly includes a second guide rod 12 fixedly connected to the inside of the sealed chamber 3 and located on one side of the first connecting plate 13, a second movable plate 18, a protruding plate 17 fixedly connected to the outside of the second guide rod 12 and away from the first connecting plate 13, a guide plate 19 fixedly connected to the protruding plate 17 at one end close to the second movable plate 18, a second slide groove 22 opened in the second movable plate 18, and a control assembly for driving the second movable plate 18 to move, the second movable plate 18 is fixedly connected to the first connecting plate 13, the second guide rod 12 is inserted in the second slide groove 22, and the horizontal transverse length of the second slide groove 22 is greater than the total horizontal transverse length of the second guide rod 12 and the protruding plate 17;

[0029] Specifically, the second movable plate 18 can move forward and backward on the outside of the second guide rod 12, and the moving second movable plate 18 can better drive the first connecting plate 13 to move forward and backward. When the second movable plate 18 moves toward the side of the protruding plate 17, the second movable plate 18 can be moved onto the protruding plate 17 under the action of the guide plate 19 with an inclined structure. Moving the second movable plate 18 toward the side of the protruding plate 17 can better drive the first connecting plate 13 to move toward the side away from the inlet and outlet pipe 2, thereby facilitating the separation of the sealing plate 10 from the inner wall of the sealing chamber 3 through the moving first connecting plate 13.

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The control assembly includes a first slide groove 20 opened inside the second movable plate 18 and located above the second guide rod 12, a second connecting rod 14 inserted inside the first slide groove 20, and two limit plates 21 arranged on both sides of the first slide groove 20, one of the limit plates 21 is fixedly connected to the end of the second connecting rod 14, the other end of the second connecting rod 14 extends to the outside of the sealing chamber 3, and the other limit plate 21 is fixedly connected to the outside of the second connecting rod 14;

[0031] Specifically, the forward and backward movement of the second movable plate 18 can be achieved by operating the second connecting rod 14. The moving second movable plate 18 can better drive the second movable plate 18 to move outside the second guide rod 12, and the lateral length of the first sliding groove 20 is greater than the diameter of the second connecting rod 14, thereby ensuring the normal left and right movement operation of the second movable plate 18, and under the action of the limiting plate 21, the stable connection between the second connecting rod 14 and the second movable plate 18 is guaranteed.

[0032] Reference Figure 1 , Figure 2 and Figure 3 Every two adjacent second connecting rods 14 are fixedly connected to one end of the sealing chamber 3 with a second connecting plate 15. Operating the second connecting plate 15 can synchronously drive the two second connecting rods 14 to move. An operating plate 16 is fixedly connected between the two second connecting plates 15. By moving the operating plate 16, the synchronous movement operation of the two second connecting plates 15 can be achieved.

[0033] Working principle: When the filter absorber is not in use, the moving operation plate 16 drives the second connecting plate 15 to move, and the moving second connecting plate 15 can drive the second connecting rod 14 to move toward the rear side of the housing 1, so that the second movable plate 18 slides outside the second guide rod 12. The moving second movable plate 18 can drive the first connecting plate 13 to move toward the inlet and outlet pipe 2, and the moving first connecting plate 13 can synchronously drive the sealing plate 10 to move toward the inlet and outlet pipe 2 under the action of the first connecting rod 7;

[0034] When the second movable plate 18 moves to the side of the guide plate 19, the second movable plate 18 is separated from the protruding plate 17 and the guide plate 19, so that the sealing plate 10 can be pushed to move to the side of the inlet and outlet pipe 2 under the action of the spring 9. The sealing plate 10 covers the connection between the inlet and outlet pipe 2 and the sealing chamber 3, and the connection between the inlet and outlet pipe 2 and the sealing chamber 3 can be sealed to prevent the internal filter element of the filter absorber from becoming damp and failing when not in use for a long time, thereby ensuring the long-term, efficient and stable filtering effect of the filter absorber, and realizing the rapid communication or sealing operation between the inside of the shell 1 and the external environment, which is simple to operate and easy to use.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A long-term filter absorber, comprising a housing (1) and two inlet and outlet pipes (2) arranged at both ends of the housing (1), characterized in that: The ends of the two inlet and outlet pipes (2) opposite to the shell (1) are fixedly connected to a sealing chamber (3), the sides of the two sealing chambers (3) opposite to the inlet and outlet pipes (2) are fixedly connected to a connecting pipe (4), and the insides of the two sealing chambers (3) are provided with a sealing assembly for sealing the inlet and outlet pipes (2); The blocking assembly comprises a sealing plate (10) movably connected between the inlet and outlet pipes (2) and the connecting pipe (4), a sealing gasket (11) fixedly connected to the sealing plate (10) on the side close to the inlet and outlet pipes (2), and two movable assemblies symmetrically arranged inside the sealing chamber (3) and located between the sealing plate (10) and the connecting pipe (4), wherein the movable assemblies are connected to the sealing plate (10) and can drive the sealing plate (10) to move horizontally inside the sealing chamber (3) to achieve closing or separation with the end of the inlet and outlet pipes (2).

2. A long-lasting filter absorber according to claim 1, characterized in that: The moving assembly comprises a first guide rod (5) fixedly connected to the inside of the sealing chamber (3), two elastic assemblies arranged on the outside of the first guide rod (5), a first connecting plate (13) and a guide assembly; the elastic assembly comprises a first movable plate (6) slidably connected to the outside of the first guide rod (5), a first connecting rod (7) slidably connected to the inside of the first movable plate (6) and located below the first guide rod (5), a fixed plate (8) fixedly connected to the outside of the first connecting rod (7) and a spring (9) sleeved on the outside of the first connecting rod (7) and located between the first movable plate (6) and the fixed plate (8); one end of the first connecting rod (7) close to the fixed plate (8) is fixedly connected to the sealing plate (10); one end of the two first connecting rods (7) opposite to the sealing plate (10) is fixedly connected to the first connecting plate (13); and the guide assembly is connected to the first connecting plate (13).

3. A long-lasting filter absorber according to claim 2, characterized in that: The guide assembly comprises a second guide rod (12) fixedly connected to the inside of the sealing chamber (3) and located on one side of the first connecting plate (13), a second movable plate (18), a protruding plate (17) fixedly connected to the outside of the second guide rod (12) and away from the first connecting plate (13), a guide plate (19) fixedly connected to one end of the protruding plate (17) close to the second movable plate (18), a second slide groove (22) opened in the second movable plate (18) and a control assembly for driving the second movable plate (18) to move, wherein the second movable plate (18) is fixedly connected to the first connecting plate (13), the second guide rod (12) is inserted into the second slide groove (22), and the horizontal transverse length of the second slide groove (22) is greater than the total horizontal transverse length of the second guide rod (12) and the protruding plate (17).

4. A long-lasting filter absorber according to claim 3, characterized in that: The control assembly comprises a first slide groove (20) opened inside the second movable plate (18) and located above the second guide rod (12), a second connecting rod (14) inserted into the first slide groove (20), and two limit plates (21) arranged on both sides of the first slide groove (20), one of the limit plates (21) is fixedly connected to the end of the second connecting rod (14), the other end of the second connecting rod (14) extends to the outside of the sealing chamber (3), and the other limit plate (21) is fixedly connected to the outside of the second connecting rod (14).

5. A long-lasting filter absorber according to claim 4, characterized in that: Each two adjacent second connecting rods (14) are fixedly connected to a second connecting plate (15) at one end located in the sealed chamber (3).

6. A long-lasting filter absorber according to claim 5, characterized in that: An operating plate (16) is fixedly connected between the two second connecting plates (15).

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