Air filter element

Abstract

The utility model relates to an air filter element, which effectively solves the problem that the existing air filter element is easy to deform in use. Comprising an annular filter element in the vertical axial direction, end covers are arranged at the upper end and the lower end of the filter element respectively, an air outlet hole is formed in the lower end cover, a clamping hole is formed in the upper end cover, a fixing block is detachably connected into the clamping hole, and the lower end of the fixing block is slidably connected with a plurality of arc-shaped plates evenly distributed in the circumferential direction of the fixing block; the arc-shaped plate is coaxial with the filter element and can be in contact with the inner surface of the filter element, a plurality of vertical axial sliding columns are arranged at the lower end of the fixed block, a movable block is connected to the sliding columns in a sliding mode, and the arc-shaped plate is hinged to the movable block through a swing rod; the device is simple in structure, novel in conception, convenient to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration and purification, in particular to an air filter element. Background Technique

[0002] The air filter element, also known as an air filter cartridge, an air filter, etc., is mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operating rooms, and various precision operating rooms. As an important component of the filtration device, under a certain air pressure, air passes through the filter layer to intercept, capture, block, and adsorb dust, particles, and chemical substances in the air, thereby improving the gas circulation in the enclosed environment and ensuring the health and safety of operators and passengers.

[0003] Most air filter elements are composed of a filter element body and end caps at both ends. However, the existing air filter elements have the following defects in use: as the use time increases, the filter material therein will gradually accumulate dust, dirt, and other particulate matters, resulting in unsmooth air flow through the filter element. At this time, it is prone to deformation under too high air flow pressure. At the same time, when used in a high-temperature environment, the expansion of the filter element material is also likely to cause deformation. After deformation, the filter element is squeezed together due to the structure, and the filtration effect will be greatly reduced. Content of the Utility Model

[0004] In view of the above situation, in order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide an air filter element, which effectively solves the problem that the existing air filter element is prone to deformation during use.

[0005] The technical solution it adopts is that the utility model includes an axially upper and lower annular filter element, end caps are respectively arranged at the upper and lower ends of the filter element, an air outlet hole is opened on the lower end cap, a clamping hole is opened on the upper end cap, a fixing block is detachably connected in the clamping hole, a plurality of arc-shaped plates evenly distributed along its circumferential direction are slidably connected to the lower end of the fixing block, the arc-shaped plates are coaxial with the filter element and can be in contact with the inner surface of the filter element, a plurality of axially upper and lower sliding columns are arranged at the lower end of the fixing block, and a moving block is slidably connected to the plurality of sliding columns. The arc-shaped plates are hinged to the moving block through swing rods.

[0006] Compared with the prior art, the beneficial effect of the utility model is that it can realize the filtration and use of air, and at the same time, the arc-shaped plates can support and fix the filter element from the inside, preventing the deformation of the filter element caused by various reasons. At the same time, the supporting components such as the arc-shaped plates are detachable and reusable, and can be quickly replaced into a new filter element. Description of the Drawings

[0007] Figure 1 is the main view axonometric drawing of the utility model.

[0008] Figure 2 is the full-section main view axonometric drawing of the utility model.

[0009] Figure 3 is the full-section left-axis isometric view of the present utility model.

[0010] Figure 4 is the full-section top-axis isometric view of the present utility model.

[0011] Figure 5 is the present utility model Figure 2 magnified view of A therein.

[0012] Reference numerals:

[0013] 1, filter element; 2, end cap; 3, air outlet; 4, fixing block; 5, arc plate; 6, sliding column; 7, moving block; 8, swing rod; 9, stud; 10, knob; 11, chute; 12, slider; 13, tension spring; 14, limiting hole; 15, receiving groove; 16, limiting block; 17, compression spring; 18, through groove. Detailed implementation manners

[0014] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following describes the detailed implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the matrix implementation disclosed below.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0016] The following further describes the detailed implementation manners of the present utility model with reference to the accompanying drawings.

[0017] As shown by Figures 1 to 5 , it includes an axially upper and lower and annular filter element 1. End caps 2 are respectively provided at the upper and lower ends of the filter element 1. An air outlet 3 is opened on the lower end cap 2, and a clamping hole is opened on the upper end cap 2. A fixing block 4 is detachably connected in the clamping hole. A plurality of arc plates 5 evenly distributed along the circumferential direction thereof are slidably connected to the lower end of the fixing block 4. The arc plates 5 are coaxial with the filter element 1 and can contact the inner surface of the filter element 1. A plurality of axially upper and lower sliding columns 6 are provided at the lower end of the fixing block 4. A moving block 7 is slidably connected to the plurality of sliding columns 6. The arc plates 5 are hinged to the moving block 7 through swing rods 8.

[0018] In order to enable the moving block 7 to move up and down, a stud 9 that is threadedly connected to the moving block 7 is rotatably connected coaxially on the fixed block 4.

[0019] In order to facilitate the rotation of the stud 9, the upper end of the stud 9 penetrates through the fixed block 4 and a knob 10 is provided coaxially.

[0020] In order to facilitate the movement of the arc-shaped plate 5, a plurality of sliding grooves 11 corresponding one-to-one to the arc-shaped plate 5 are opened at the lower end of the fixed block 4, and a sliding block 12 located in the sliding groove 11 is provided at the upper end of the arc-shaped plate 5.

[0021] In order to facilitate the reset of the arc-shaped plate 5, the inner end of the sliding block 12 is connected to the moving block 7 through a tension spring 13.

[0022] In order to detachably connect the fixed block 4 to the end cover 2, limiting holes 14 are respectively opened on the left and right sides of the upper side end cover 2, receiving grooves 15 are respectively opened at the left and right ends of the fixed block 4, and a limiting block 16 that can be inserted into the limiting hole 14 is slidably connected in the receiving groove 15.

[0023] In order to facilitate the reset of the limiting block 16, the inner end of the limiting block 16 is connected to the fixed block 4 through a compression spring 17.

[0024] In order to prevent the filter element 1 from being blocked, a through groove 18 is opened on the arc-shaped plate 5.

[0025] When the present utility model is in use, first rotate the knob 10 clockwise. The knob 10 drives the stud 9 to rotate clockwise. The stud 9 drives the moving block 7 to move downward on the sliding column 6. At the same time, through the swing rod 8, it drives a plurality of arc-shaped plates 5 to slide outward. The plurality of arc-shaped plates 5 drive the sliding blocks 12 to slide outward in the corresponding sliding grooves 11 on the corresponding sides. After sliding outward for a certain distance, the arc-shaped plates 5 contact the inner surface of the filter element 1 and realize the support for the filter element 1, preventing the filter element 1 from collapsing inward and deforming. At this time, due to the self-locking property of the stud 9, the arc-shaped plates 5 will not move without rotating the stud 9, thereby ensuring that the arc-shaped plates 5 can continuously support and fix the filter element 1 during use. Then, the filter element 1 can be installed and used. Air enters the filter element 1 from all around and is filtered, and then the filtered air is output through the air outlet 3.

[0026] When the filter element 1 needs to be replaced after being used for a period of time, at this time, the filter element 1 and the end cover 2 are removed. Then rotate the knob 10 counterclockwise. The knob 10 drives the stud 9 to rotate counterclockwise. The stud 9 drives the moving block 7 to move upward, and releases the outward extrusion of the arc-shaped plates 5 through the swing rod 8. At this time, due to the restoring force of the tension spring 13 inward, it drives the arc-shaped plates 5 to slide inward to the initial position, releasing the support and fixation of the filter element 1. Then, press the two limiting blocks 16 outward. The limiting blocks 16 move inward. After moving inward for a certain distance, they are pulled out from the limiting holes 14, releasing the limiting fixation of the fixed block 4. At this time, the entire fixed block 4 and the arc-shaped plates 5, etc. can be pulled out from the filter element 1.

[0027] Then, insert the fixing block 4 into the new filter element 1, and then loosen the limit block 16. Due to the restoring force of the compression spring 17 acting outward, the limit block 16 is driven to move outward. After moving outward for a certain distance, it is inserted into the corresponding limit hole 14 to re - achieve fixed limitation, and at this time, it can be used again.

[0028] Compared with the prior art, the beneficial effects of the present utility model are as follows: The provided filter element, arc plate, moving block, etc. can realize the filtration of air. At the same time, the arc plate can support and fix the filter element from the inside, preventing the deformation of the filter element caused by various reasons. At the same time, the supporting components such as the arc plate are detachable and reusable, and can be quickly replaced into a new filter element. This structure is simple, novel in concept, convenient to use, and has strong practicability.

[0029] It should be noted that according to the needs of implementation, each component described in the embodiments of the present utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of the present utility model.

[0030] The above - mentioned embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. An air filter element, comprising an upper and lower axial and annular filter element (1), characterized in that: The filter element (1) is provided with end covers (2) at both ends, respectively; an air outlet hole (3) is provided on the lower end cover (2); a clamping hole is provided on the upper end cover (2); a fixing block (4) is detachably connected in the clamping hole; a plurality of arc-shaped plates (5) uniformly distributed along the circumference of the fixing block (4) are slidably connected at the lower end of the fixing block (4); the arc-shaped plates (5) are coaxial with the filter element (1) and can contact the inner surface of the filter element (1); a plurality of upper and lower axial sliding columns (6) are provided at the lower end of the fixing block (4); a moving block (7) is slidably connected to the plurality of sliding columns (6); and the arc-shaped plates (5) are hingedly connected to the moving block (7) via a swing rod (8).

2. An air filter element according to claim 1, characterized in that: The fixed block (4) is coaxially rotatably connected with a stud (9) which is threadedly connected to the movable block (7).

3. An air filter element according to claim 2, characterized in that: The upper end of the stud (9) passes through the fixing block (4) and is coaxially provided with a knob (10).

4. An air filter element according to claim 1, characterized in that: The lower end of the fixed block (4) is provided with a plurality of slide grooves (11) corresponding one to one with the arc-shaped plates (5), and the upper end of the arc-shaped plates (5) is provided with a sliding block (12) located in the slide groove (11).

5. An air filter element according to claim 4, characterized in that: The inner end of the sliding block (12) is connected to the moving block (7) via a tension spring (13).

6. An air filter element according to claim 1, characterized in that: The upper end cover (2) is provided with limit holes (14) on both sides, and the fixed block (4) is provided with receiving grooves (15) on both ends. The receiving grooves (15) are slidably connected with limit blocks (16) that can be inserted into the limit holes (14).

7. An air filter element according to claim 6, characterized in that: The inner end of the limit block (16) is connected to the fixed block (4) via a compression spring (17).

8. An air filter element according to claim 1, characterized in that: The arc-shaped plate (5) is provided with a through slot (18).

Images