Air filter shield

Abstract

The utility model discloses an air filter protective cover, which belongs to the field of protective covers and comprises an upper cover, a lower cover, a filter element and an outer net protective cover, an arranged connecting mechanism is matched with the outer net protective cover for use, and after the outer net protective cover is placed on the top surface of the lower cover, C-shaped buckles positioned below side plates on two sides of the outer net protective cover are pulled and turned over, so that the outer net protective cover is fixed. The C-shaped buckles are buckled on the L-shaped fixing plates installed on the outer wall of the lower cover, the lower cover and the outer net protective cover can be connected and fixed together, then the filter element is placed in the outer net protective cover, the bottom end of the filter element is embedded into the embedding groove in the top face of the lower cover, then the upper cover is placed on the top face of the outer net protective cover, and the filter element is fixed to the outer net protective cover. The upper end of the filter element is embedded into the embedding groove in the bottom face of the upper cover, and finally, the C-shaped buckle on the upper portion is pulled and overturned to be buckled to the L-shaped fixing plates on the two sides of the upper cover, so that installation of the air filter can be completed, the outer net protective cover can be conveniently disassembled and assembled between the upper cover and the lower cover, and the filter element can be conveniently disassembled, cleaned or replaced.

Description

Technical Field

[0001] The utility model relates to the field of protective covers, in particular to an air filter protective cover. Background Art

[0002] The air filter element is a kind of filter, also called air filter cartridge, air filter, style, etc. It is mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operating rooms and various precision operating rooms.

[0003] The engine needs to inhale a large amount of air during operation. If the air is not filtered, the dust suspended in the air will be sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Large particles entering between the piston and the cylinder will cause serious "cylinder pulling", which is particularly serious in dry and sandy working environments. The air filter is installed in front of the carburetor or the intake pipe to filter out dust and sand in the air to ensure that sufficient and clean air enters the cylinder.

[0004] In the prior art, during the use of the air filter, an outer mesh shield is usually used to protect the internal filter element, which not only plays the role of air intake and coarse filtration, but also prevents the filter element from being damaged. However, the outer mesh shield of the current cylindrical air filter is mostly integrated with the upper cover and the lower cover, resulting in that when the filter element needs to be cleaned or replaced after a long period of use, it is difficult to remove the filter element from the inside for cleaning and replacement due to the inconvenience of removing the outer mesh shield. Utility Model Content

[0005] The main purpose of the utility model is to provide an air filter shield, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An air filter shield comprises an upper cover, a lower cover, a filter element and an outer mesh shield, wherein the outer mesh shield is fixedly connected between the upper cover and the lower cover by connecting mechanisms on both sides, and the connecting mechanisms comprise side plates, a fixing rod, a tension spring, a movable block and a C-shaped buckle, the side plates are fixedly connected to both sides of the outer wall of the outer mesh shield, and the inside of the side plates is fixedly connected with symmetrical fixing rods, the tension spring is sleeved on the fixing rod, and the movable block is fixedly connected to the outer end of the tension spring and movably connected to the fixing rod through a connecting hole on the top surface, and the C-shaped buckle is movably connected to the movable block through rotating blocks on both sides of the inner wall.

[0008] Preferably, an air outlet is fixedly mounted on the top surface of the upper cover, and embedding grooves are respectively provided on the bottom surfaces of the upper cover and the lower cover, and the upper and lower ends of the filter element are respectively embedded in the embedding grooves.

[0009] Preferably, a group of symmetrical L-shaped fixing plates are fixedly mounted on the outer walls of the upper cover and the lower cover respectively.

[0010] Preferably, a group of symmetrical side panels are fixedly mounted on the outer wall of the outer net shield, and a group of vertically symmetrical movable openings are opened on the side walls of the side panels, and sliding openings are respectively opened on the inner side walls of the movable openings.

[0011] Preferably, the fixed rod is fixedly installed inside the movable opening, and the tension spring is sleeved on the rod body of the fixed rod, the inner end of the tension spring is fixedly installed on the inner end wall of the movable opening, and a movable block is fixedly installed on the outer end of the tension spring, sliding blocks are fixedly installed on the left and right side walls of the movable block, and the sliding block is movably installed in the sliding opening, a connecting hole is provided on the top surface of the movable block, and the movable block is movably installed together with the fixed rod through the connecting hole, and rotation grooves are also provided on the front and rear side walls of the movable block.

[0012] Preferably, rotating blocks are fixedly mounted on both sides of the inner wall of the opening of the C-shaped buckle, and the rotating blocks are movably mounted in the rotating groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the connection mechanism is used in conjunction with the upper outer net guard. After the outer net guard is placed on the top surface of the lower cover, the C-shaped buckles below the side plates on both sides of the outer net guard are pulled and flipped, so that the C-shaped buckles are buckled on the L-shaped fixing plates installed on the outer wall of the lower cover, so that the lower cover and the outer net guard are connected and fixed together. After the filter element is placed in the outer net guard, the bottom end of the filter element is embedded in the embedding groove on the top surface of the lower cover, and then the upper cover is placed on the top surface of the outer net guard so that the upper end of the filter element is embedded in the embedding groove on the bottom surface of the upper cover. Finally, the C-shaped buckles on the upper side are pulled and flipped to be buckled on the L-shaped fixing plates on both sides of the upper cover, so that the installation of the air filter can be completed. Since the outer net guard is connected and fixed between the upper cover and the lower cover through the connection mechanism, when the filter element needs to be cleaned and replaced, the upper cover or the lower cover can be removed from the outer net guard to remove the filter element, thereby facilitating the disassembly and assembly between the outer net guard and the upper cover and the lower cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of the lower cover of the utility model;

[0018] Figure 4 It is a schematic diagram of the structural disassembly of the connecting mechanism of the utility model.

[0019] In the figure: 1. upper cover; 2. lower cover; 3. filter element; 4. outer mesh shield; 5. air outlet; 6. connecting mechanism; 7. embedding groove; 8. L-shaped fixing plate; 9. side plate; 10. movable opening; 11. sliding opening; 12. fixing rod; 13. tension spring; 14. movable block; 15. sliding block; 16. connecting hole; 17. rotating groove; 18. C-shaped buckle; 19. rotating block. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 - Figure 4 As shown, an air filter shield comprises an upper cover 1, a lower cover 2, a filter element 3 and an outer mesh shield 4, the outer mesh shield 4 is fixedly connected between the upper cover 1 and the lower cover 2 by connecting mechanisms 6 on both sides, and the connecting mechanisms 6 comprise side plates 9, a fixing rod 12, a tension spring 13, a movable block 14 and a C-shaped buckle 18, the side plates 9 are fixedly connected to both sides of the outer wall of the outer mesh shield 4, and the inside of the side plates 9 is fixedly connected with symmetrical fixing rods 12, the tension spring 13 is sleeved on the fixing rod 12, and the movable block 14 is fixedly connected to the outer end of the tension spring 13 and is movably connected to the fixing rod 12 through a connecting hole 16 on the top surface, and the C-shaped buckle 18 is movably connected to the movable block 14 through rotating blocks 19 on both sides of the inner wall.

[0022] like Figure 1 - Figure 4As shown, in this embodiment, in order to connect and fix the outer net shield 4 between the upper cover 1 and the lower cover 2 through the connecting mechanism 6, so as to facilitate the subsequent disassembly, cleaning and replacement of the filter element 3, an air outlet 5 is fixedly installed on the top surface of the upper cover 1, and the bottom surface of the upper cover 1 and the bottom surface of the lower cover 2 are respectively provided with an embedding groove 7, and the upper and lower ends of the filter element 3 are respectively embedded and installed in the grooves of the embedding groove 7, and a group of symmetrical L-shaped fixing plates 8 are also fixedly installed on the outer walls of the upper cover 1 and the lower cover 2, and a group of symmetrical side plates 9 are fixedly installed on the outer wall of the outer net shield 4, and a group of upper and lower symmetrical movable openings 10 are opened on the side walls of the side plates 9, and sliding openings 11 are also opened on the inner side walls of the movable openings 10, and the fixing rods 12 are fixedly installed on the outer wall of the outer net shield 4. Inside the movable opening 10, the tension spring 13 is sleeved on the rod body of the fixed rod 12, the inner end of the tension spring 13 is fixedly installed on the inner end wall of the movable opening 10, and the outer end of the tension spring 13 is fixedly installed with a movable block 14, the left and right side walls of the movable block 14 are respectively fixedly installed with sliding blocks 15, and the sliding block 15 is movably installed in the sliding opening 11, the top surface of the movable block 14 is provided with a connecting hole 16, and the movable block 14 is movably installed with the fixed rod 12 through the connecting hole 16, and the front and rear side walls of the movable block 14 are also respectively provided with a rotating groove 17, and the inner walls of the opening of the C-shaped buckle 18 are respectively fixedly installed with rotating blocks 19, and the rotating block 19 is movably installed in the rotating groove 17;

[0023] The specific use principle of the outer net shield 4 in conjunction with the upper connection mechanism 6 is as follows: after placing the outer net shield 4 on the top surface of the lower cover 2, manually pull downward in turn and flip the C-shaped buckles 18 located at the lower part of the side panels 9 installed on both sides of the outer net shield 4 in the outward direction. When the C-shaped buckle 18 is pulled, the C-shaped buckle 18 will drive the movable block 14 to move downward in the movable opening 10 opened on the side wall of the side panel 9 through the rotating block 19, and the movable block 14 will move along the fixed rod 12 installed in the movable opening 10 through the connecting hole 16 on the top surface, and the movable block 14 The sliding blocks 15 installed on both sides will slide in the sliding openings 11 opened on both sides of the inner wall of the movable opening 10, and force the tension spring 13 set on the fixed rod 12 to extend. When the C-shaped buckle 18 is flipped outward, the rotating blocks 19 installed on both sides of the opening inner wall of the C-shaped buckle 18 will rotate in the rotating grooves 17 opened on both side walls of the movable block 14 until the C-shaped buckle 18 passes over the L-shaped fixed plate 8 and then flips the C-shaped buckle 18 inward and releases the pulling force on the C-shaped buckle 18. At this time, the tension spring 13 will make a The retracting operation drives the C-shaped buckle 18 to move upward through the movable block 14, so that the C-shaped buckle 18 is stuck on the inner side of the vertical part of the L-shaped fixing plate 8, so that the lower cover 2 can be fixedly connected to the bottom end of the outer net shield 4, and then the filter element 3 is placed in the outer net shield 4, and the bottom end of the filter element 3 is embedded in the embedding groove 7 correspondingly opened on the top surface of the lower cover 2, and then the upper cover 1 is placed on the top surface of the outer net shield 4, and the upper end of the filter element 3 is embedded in the embedding groove 7 opened on the bottom surface of the upper cover 1. Similarly, pull upward and flip the upper C-shaped The buckle 18 is used to make the C-shaped buckle 18 pass over the L-shaped fixing plate 8 and then flip it inward. After the C-shaped buckle 18 is buckled on the L-shaped fixing plate 8, the upper cover 1 can be installed and fixed on the top surface of the upper cover 1, and the installation of the air filter is completed. When it is necessary to clean or replace the protected filter element 3 in the outer mesh shield 4, the upper cover 1 or the lower cover 2 can be removed from the outer mesh shield 4 by pulling it upward and flipping the C-shaped buckle 18 in the outward direction, and the outer mesh shield 4 can also be removed from between the upper cover 1 and the lower cover 2. Finally, the filter element 3 can be taken out from the inside.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced by equivalents, or some of its technical features may be replaced by equivalents without departing from the scope of the present invention. All that is within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air filter cover, comprising an upper cover (1), a lower cover (2), a filter element (3) and an outer mesh cover (4), characterized in that: The outer net shield (4) is fixedly connected between the upper cover (1) and the lower cover (2) via connecting mechanisms (6) on both sides, and the connecting mechanisms (6) include side plates (9), a fixed rod (12), a tension spring (13), a movable block (14) and a C-shaped buckle (18). The side plates (9) are fixedly connected to both sides of the outer wall of the outer net shield (4), and the inside of the side plates (9) is fixedly connected with symmetrical fixed rods (12). The tension spring (13) is sleeved on the fixed rod (12), and the movable block (14) is fixedly connected to the outer end of the tension spring (13) and is movably connected to the fixed rod (12) through a connecting hole (16) on the top surface. The C-shaped buckle (18) is movably connected to the movable block (14) through rotating blocks (19) on both sides of the inner wall.

2. An air filter cover according to claim 1, characterized in that: An air outlet (5) is fixedly mounted on the top surface of the upper cover (1), and embedding grooves (7) are respectively provided on the bottom surfaces of the upper cover (1) and the lower cover (2), and the upper and lower ends of the filter element (3) are respectively embedded in the embedding grooves (7).

3. An air filter cover according to claim 2, characterized in that: A group of symmetrical L-shaped fixing plates (8) are fixedly mounted on the outer walls of the upper cover (1) and the lower cover (2), respectively.

4. An air filter cover according to claim 3, characterized in that: A group of symmetrical side panels (9) are fixedly mounted on the outer wall of the outer net shield (4), and a group of vertically symmetrical movable openings (10) are opened on the side walls of the side panels (9), and sliding openings (11) are respectively opened on the inner side walls of the movable openings (10).

5. An air filter cover according to claim 4, characterized in that: The fixed rod (12) is fixedly mounted inside the movable opening (10), and the tension spring (13) is sleeved on the rod body of the fixed rod (12), the inner end of the tension spring (13) is fixedly mounted on the inner end wall of the movable opening (10), and a movable block (14) is fixedly mounted on the outer end of the tension spring (13), and sliding blocks (15) are fixedly mounted on the left and right side walls of the movable block (14), and the sliding block (15) is movably mounted in the sliding opening (11), a connecting hole (16) is provided on the top surface of the movable block (14), and the movable block (14) is movably mounted together with the fixed rod (12) through the connecting hole (16), and a rotating groove (17) is also provided on the front and rear side walls of the movable block (14).

6. An air filter cover according to claim 5, characterized in that: Rotating blocks (19) are fixedly mounted on both sides of the inner wall of the opening of the C-shaped buckle (18), and the rotating blocks (19) are movably mounted in the rotating groove (17).

Images