Filter structure of air circulation device of tractor

Abstract

The utility model belongs to filter technical field, specifically disclose a kind of filter structure of tractor air circulation device, including filter sleeve, the inside fixedly connected with square tube of filter sleeve, the top fixedly connected with top cover of square tube, the bottom fixedly connected with docking portion of square tube, the inside sequentially fixedly connected with primary filter layer, middle filter layer and high efficiency filter layer of square tube from top to bottom;Cleaning assembly, cleaning assembly is used to clean dust accumulated on primary filter layer, and cleaning assembly is connected with filter sleeve and square tube. By setting cleaning assembly, dust accumulated on the top of primary filter layer can be automatically removed by soft brush, and the dust cleaned is pushed into the inside of a dust collection box for collection, without manually cleaning primary filter layer by staff, avoid the situation that primary filter layer is blocked, and the normal working of air circulation device is affected.

Description

Technical Field

[0001] This utility model belongs to the field of filtration technology, and specifically relates to a filtration structure for a tractor air circulation device. Background Technology

[0002] The core principle of filtration is to separate different components in a mixture through porous media. It is mainly used for mixtures of solid particles with liquids or gases. Filtration devices generally adopt a multi-layer filtration combination design, especially in industrial and special applications. The multi-layer filtration structure can intercept particles of different sizes in stages, improve purification efficiency and extend filter life. The primary filter layer intercepts large particles, the intermediate filter layer filters out small suspended solids, and the high-efficiency filter layer removes ultrafine particles. Among them, the primary filter layer intercepts the most dust.

[0003] When tractors operate in dry and dusty environments such as fields during autumn harvest, the surface of the primary filter layer in the filtration structure needs to be cleaned every 8 to 10 hours to prevent excessive dust buildup that could clog the filter structure, preventing the tractor's air circulation system from receiving air and affecting normal operation. However, current technology typically requires workers to manually clean the surface of the primary filter layer with a soft brush, which is very inconvenient. Therefore, designing a filtration structure for the tractor's air circulation system is a problem that we need to solve. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter structure for a tractor air circulation device.

[0005] To achieve the above objectives, this utility model provides a filter structure for a tractor air circulation device, including a filter sleeve, a square tube fixedly connected inside the filter sleeve, a top cover fixedly connected to the top of the square tube, a docking part fixedly connected to the bottom of the square tube, and a primary filter layer, a secondary filter layer, and a high-efficiency filter layer fixedly connected inside the square tube from top to bottom; and a cleaning component for cleaning dust accumulated on the primary filter layer, the cleaning component being connected to the filter sleeve and the square tube.

[0006] In the above technical solution, the cleaning component further includes a traction rope inserted into the inside of the square tube. A soft brush and a connecting ball are fixedly connected to the outer wall of the traction rope. The soft brush is slidably connected inside the square tube and is disposed on the top of the primary filter layer.

[0007] In the above technical solution, further, a counterweight and a collecting soft sheet are fixedly connected to both ends of the traction rope, the counterweight is slidably connected to the outer wall of the square tube, the collecting soft sheet is slidably connected to the inside of the square tube, and the collecting soft sheet is set at the bottom of the primary filter layer.

[0008] In the above technical solution, the end of the collecting soft sheet away from the traction rope is fixedly connected to a connecting rope, and the end of the connecting rope away from the collecting soft sheet is fixedly connected to the inside of the connecting ball. The connecting rope is set inside the square tube.

[0009] In the above technical solution, a rotating plate is rotatably connected inside the square tube, and the connecting ball abuts against one side of the rotating plate. A first guide rod and a second guide rod are fixedly connected inside the filter sleeve, and the first guide rod and the second guide rod are set on the outer wall of the traction rope.

[0010] In the above technical solution, further, a connector is sleeved on the outer wall of the traction rope, the connector is slidably connected to the inside of the square tube, a piston plate is fixedly connected to the end of the connector away from the traction rope, the piston plate is set at the bottom of the square tube, and two dust collection boxes are snapped into the inside of the filter sleeve, the dust collection boxes are sleeved on the outer wall of the square tube.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting up a cleaning component, the dust accumulated on the top of the primary filter layer can be automatically removed by a soft brush, and the cleaned dust is pushed into a dust collection box for collection. This achieves the effect of automatically cleaning the dust accumulated on the primary filter layer, eliminating the need for manual cleaning by the staff. This is convenient for staff to use and avoids situations where the primary filter layer is not cleaned in time, leading to blockage and affecting the normal operation of the tractor's air circulation device.

[0013] At the same time, the collecting film can collect the dust that falls through the filter pores of the primary filter layer when the soft brush cleans the primary filter layer, preventing dust from falling onto the intermediate filter layer and affecting its normal service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0015] Figure 2 This is a cross-sectional view of the cleaning component structure proposed in this utility model;

[0016] Figure 3 This is an enlarged view of the structure of part A in the figure proposed in this utility model;

[0017] Figure 4 This is an enlarged view of a partial structure of the cleaning component proposed in this utility model.

[0018] In the diagram: 1. Connecting part; 2. Filter sleeve; 3. Square tube; 4. Top cover; 5. Primary filter layer; 6. Intermediate filter layer; 7. High-efficiency filter layer; 8. Traction rope; 9. Soft brush; 10. Connecting ball; 11. Counterweight; 12. Collection plate; 13. Connecting rope; 14. Rotating plate; 15. First cable guide rod; 16. Second cable guide rod; 17. Connector; 18. Piston plate; 19. Dust collection box. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 3 The filter structure of a tractor air circulation device shown includes a filter sleeve 2, a square tube 3 fixedly connected inside the filter sleeve 2, a top cover 4 fixedly connected to the top of the square tube 3, and a docking part 1 fixedly connected to the bottom of the square tube 3. The docking part 1 is the connecting component between the tractor air circulation device and the square tube 3. A primary filter layer 5, a secondary filter layer 6, and a high-efficiency filter layer 7 are fixedly connected inside the square tube 3 from top to bottom. A cleaning component is used to clean the dust accumulated on the primary filter layer 5. The cleaning component is connected to the filter sleeve 2 and the square tube 3.

[0021] like Figures 2 to 4As shown, the cleaning assembly includes a traction rope 8 inserted inside the square tube 3. A soft brush 9 and a connecting ball 10 are fixedly connected to the outer wall of the traction rope 8. The soft brush 9 is slidably connected inside the square tube 3 and is located on top of the primary filter layer 5. A counterweight 11 and a collecting soft sheet 12 are fixedly connected to both ends of the traction rope 8, respectively. Multiple support rods are equidistantly arranged inside the collecting soft sheet 12 to strengthen the collecting soft sheet 12 and prevent it from falling and failing to separate the square tube 3, thus preventing dust falling from the primary filter layer 5 from falling onto the intermediate filter layer 6. The counterweight 11 is slidably connected to the outer wall of the square tube 3, and the collecting soft sheet 12 is slidably connected to the outer wall of the square tube 3. The filter sleeve 2 is movably connected inside the square tube 3. A collecting soft sheet 12 is positioned at the bottom of the primary filter layer 5. A connecting rope 13 is fixedly connected to the end of the collecting soft sheet 12 away from the traction rope 8. The end of the connecting rope 13 away from the collecting soft sheet 12 is fixedly connected to the inside of the connecting ball 10. The connecting rope 13 is positioned inside the square tube 3. A rotating plate 14 is rotatably connected inside the square tube 3. The rotating plate 14 is positioned along the path through which the collecting soft sheet 12 slides inside the square tube 3, allowing the collecting soft sheet 12 to push the rotating plate 14 open. The connecting ball 10 rests against one side of the rotating plate 14. A first guide rod 15 and a second guide rod 16 are fixedly connected inside the filter sleeve 2. The first guide rod... Line rod 15 and second line guide rod 16 are installed on the outer wall of the traction rope 8. The first line guide rod 15 and the second line guide rod 16 are used to limit the arrangement of the traction rope 8. When the counterweight 11 pulls the traction rope 8, the traction rope 8 will first pull the connecting rope 13 through the connecting ball 10 under the action of the first line guide rod 15 and the second line guide rod 16. The connecting rope 13 will then pull the collecting soft sheet 12 to slide along the inside of the square tube 3. Only when the traction rope 8 between the connecting ball 10 and the second line guide rod 16 is pulled to a vertical state will the traction rope 8 pull the soft brush 9 to slide along the inside of the square tube 3 to clean the dust accumulated on the surface of the primary filter layer 5. During the sweeping process, the collecting soft sheet 12 is pulled first, and it will block the part of the primary filter layer 5 that is being swept by the soft brush 9 from the bottom, preventing dust from drifting through the filter holes of the primary filter layer 5 to the intermediate filter layer 6 below, thus reducing the service life of the intermediate filter layer 6. The outer wall of the traction rope 8 is fitted with a connector 17, which is slidably connected to the inside of the square tube 3. The end of the connector 17 away from the traction rope 8 is fixedly connected to a piston plate 18, which is located at the bottom of the square tube 3. The outer contour of the piston plate 18 is adapted to the inner contour of the square tube 3. Two dust collection boxes 19 are snapped into the inside of the filter sleeve 2, and the dust collection boxes 19 are fitted onto the outer wall of the square tube 3.

[0022] Working principle: When the air circulation device on the tractor is working, it draws gas from inside the square tube 3 through the docking part 1. This causes the square tube 3 to draw in outside gas through the mesh opening at its connection with the top cover 4. The blades (crop fragments from autumn harvest) in the outside gas are blocked by the mesh at the connection between the square tube 3 and the top cover 4. The gas then enters the interior of the square tube 3 and is filtered sequentially through the primary filter layer 5, the intermediate filter layer 6, and the high-efficiency filter layer 7 before being discharged into the air circulation device through the docking part 1. When the air circulation device draws gas from inside the square tube 3 through the docking part 1, the piston plate 18 inside the square tube 3 is subjected to negative pressure. Adsorption begins as the piston plate 18 slides down the inside of the square tube 3 until it disengages from the square tube 3 and enters the air intake pipe of the air circulation device. At this point, the piston plate 18 stops sealing the square tube 3, allowing gas to flow normally. During this process, the piston plate 18 pulls the traction rope 8 through the connector 17, causing the traction rope 8 to move the soft brush 9 and the collecting soft plate 12. This causes the traction rope 8 to pull the counterweight 11 upward, and the connecting rope 13 to pull the connecting ball 10 against the outer wall of the rotating plate 14, preventing the rotating plate 14 from rotating and opening. This continues until the piston plate 18 stops sealing the square tube 3, at which point the cleaning assembly becomes as follows. Figure 3 In the state shown, when the air circulation device stops working and no longer draws in outside air, the piston plate 18 loses power, causing the counterweight 11 to reset. This, in turn, causes the counterweight 11 to pull the soft brush 9 and the collecting plate 12 along the inside of the square tube 3 via the traction rope 8, connecting ball 10, and connecting rope 13. The soft brush 9 removes the dust accumulated on the top of the primary filter layer 5 and pushes the cleaned dust into a dust collection box 19 for collection. The collecting plate 12 collects the dust that falls through the filter holes after being cleaned by the soft brush 9, thus achieving the effect of automatically cleaning the dust accumulated on the primary filter layer 5 without the need for manual cleaning. The primary filter layer 5 is manually cleaned by the staff for convenience and to prevent clogging caused by failure to clean it in time, which could affect the normal operation of the tractor's air circulation device. At the same time, the collecting plate 12 can collect the dust that falls through the filter holes of the primary filter layer 5 when the soft brush 9 cleans it, preventing the dust from falling onto the intermediate filter layer 6 and affecting its normal service life. It should be noted that when the piston plate 18 pulls the collecting plate 12 through the connector 17 and the traction rope 8, the dust collected on the collecting plate 12 will fall into the interior of another dust collection box 19.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A filter structure for a tractor air circulation device, comprising a filter sleeve (2), characterized in that, The filter sleeve (2) is fixedly connected to a square tube (3), the top of the square tube (3) is fixedly connected to a top cover (4), the bottom of the square tube (3) is fixedly connected to a docking part (1), and the inside of the square tube (3) is fixedly connected to a primary filter layer (5), a secondary filter layer (6) and a high-efficiency filter layer (7) from top to bottom. A cleaning assembly is used to clean the dust accumulated on the primary filter layer (5), and the cleaning assembly is connected to the filter sleeve (2) and the square tube (3); The cleaning assembly includes a traction rope (8) inserted inside the square tube (3). A soft brush (9) and a connecting ball (10) are fixedly connected to the outer wall of the traction rope (8). The soft brush (9) is slidably connected inside the square tube (3) and is located on top of the primary filter layer (5).

2. The filter structure of a tractor air circulation device according to claim 1, characterized in that, The two ends of the traction rope (8) are respectively fixedly connected to a counterweight (11) and a collecting soft sheet (12). The counterweight (11) is slidably connected to the outer wall of the square tube (3), and the collecting soft sheet (12) is slidably connected to the inside of the square tube (3). The collecting soft sheet (12) is set at the bottom of the primary filter layer (5).

3. The filter structure of a tractor air circulation device according to claim 2, characterized in that, The end of the collecting soft sheet (12) away from the traction rope (8) is fixedly connected to a connecting rope (13). The end of the connecting rope (13) away from the collecting soft sheet (12) is fixedly connected to the inside of the connecting ball (10). The connecting rope (13) is set inside the square tube (3).

4. The filter structure of a tractor air circulation device according to claim 3, characterized in that, The inside of the square tube (3) is rotatably connected to a rotating plate (14), and the connecting ball (10) abuts against one side of the rotating plate (14). The inside of the filter sleeve (2) is fixedly connected to a first guide rod (15) and a second guide rod (16), and the first guide rod (15) and the second guide rod (16) are set on the outer wall of the traction rope (8).

5. The filter structure of a tractor air circulation device according to claim 4, characterized in that, The outer wall of the traction rope (8) is fitted with a connector (17), which is slidably connected to the inside of the square tube (3). A piston plate (18) is fixedly connected to the end of the connector (17) away from the traction rope (8). The piston plate (18) is located at the bottom of the square tube (3). Two dust collection boxes (19) are snapped into the inside of the filter sleeve (2), which are fitted onto the outer wall of the square tube (3).

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