Door and window aluminum material sand blasting device

Abstract

The utility model relates to the technical field of door and window aluminum material processing, and discloses a door and window aluminum material sand blasting device which comprises a sand blasting box and further comprises an aluminum material body located in the sand blasting box. The fixing assembly is arranged in the sand blasting box; the adjusting assemblies are symmetrically arranged at the bottom of the sand blasting box; and the overturning assembly is arranged in the sand blasting box. The aluminum material body can be effectively fixed through the arranged fixing assemblies, the distance between the fixing assemblies can be effectively adjusted through the arranged adjusting assembly, the aluminum material body can be effectively overturned through the arranged overturning assembly, and therefore the aluminum material body can be effectively overturned. According to the sand blasting device for the aluminum material body, the sand blasting efficiency and effect of the aluminum material body can be effectively improved, dust generated in the sand blasting process of the aluminum material body can be effectively adsorbed and purified through the arranged purification assembly, and therefore the environment and the body health of workers can be effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of aluminum material processing technology for doors and windows, and more specifically, to a sandblasting device for aluminum materials for doors and windows. Background Technology

[0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, mullions, and sashes. In order to obtain a certain degree of cleanliness and different roughness on the surface of aluminum alloy doors and windows and improve their mechanical properties, sandblasting is generally performed on the surface of aluminum alloy doors and windows. When sandblasting aluminum materials for doors and windows, a door and window aluminum material sandblasting device is required.

[0003] Existing sandblasting devices cannot effectively adsorb and purify the dust generated during the sandblasting process on aluminum. Sandblasting aluminum produces a large amount of dust, including fine particles such as metal, quartz sand, and granulated sand. If this dust is not effectively adsorbed and purified and is directly discharged, it will endanger the health of workers. Furthermore, this dust may cause an explosion. Because these fine particles have a large surface area, they can explode upon contact with oxygen in the air with just a single ignition source. This not only reduces the overall practicality of the sandblasting device but also lowers its safety factor during use.

[0004] Compared with Chinese Patent Publication No. CN219113792U, this utility model discloses a sandblasting device for aluminum profiles for doors and windows. The device includes a bracket with a slidably mounted fixing block. A rotating rod is rotatably mounted on the fixing block, extending at least partially beyond the fixing block and connected to a gear. A rack is mounted on the bracket, and a locking assembly is mounted on the rotating rod. The locking assembly fixes the aluminum profile to the rotating rod. When the fixing block moves to the rack, the gear engages with the rack, causing the aluminum profile to flip. This causes a belt to move the aluminum profile on the fixing block into a protective cover. When the aluminum profile is inside the protective cover, the gear on the fixing block engages with the rack, causing the aluminum profile to flip. This simple structure allows each end face of the aluminum profile to be sandblasted, eliminating the need for secondary sandblasting.

[0005] The above solution can effectively flip the aluminum material, thereby enabling comprehensive sandblasting. However, the solution still lacks a structure that can effectively adsorb and purify dust, and fails to solve the problems mentioned in the background art.

[0006] Therefore, those skilled in the art have provided a sandblasting device for aluminum profiles for doors and windows to solve the problems mentioned in the background art. Utility Model Content

[0007] The purpose of this utility model is to provide a sandblasting device for aluminum profiles for doors and windows, including a sandblasting box, and further comprising:

[0008] The aluminum body is located inside the sandblasting box;

[0009] A fixing component is disposed inside the sandblasting box;

[0010] Adjustment components are symmetrically arranged at the bottom of the sandblasting box;

[0011] The flip-over assembly is located inside the sandblasting chamber;

[0012] A sandblasting device is fixedly connected to the upper surface of the sandblasting box. The sandblasting box has a movable plate inside, and the movable plate has symmetrical mounting holes for installing sandblasting heads. The sand outlet end of the sandblasting device is connected to the interior of two sandblasting heads through a pipe.

[0013] The rear plate is fixedly connected to the rear end surface of the sandblasting box;

[0014] A purification component is disposed on the upper surface of the rear panel.

[0015] As a further improvement to this technical solution, the fixing assembly includes multiple fixing plates disposed inside the sandblasting box. The bottom of the inner side of the fixing plate is rotatably connected to a first bidirectional threaded rod. The other end of the first bidirectional threaded rod extends to the outside of the fixing plate and is fixedly connected to a knob. The outside of the first bidirectional threaded rod is symmetrically provided with abutment clamps. The outside of the fixing plate is provided with guide grooves for the abutment clamps to move.

[0016] As a further improvement to this technical solution, the adjustment assembly includes adjustment plates symmetrically arranged at the bottom of the sandblasting box. A second bidirectional threaded rod is rotatably connected to the inner side wall of the adjustment plate. The other end of the second bidirectional threaded rod extends to the outside of the adjustment plate and is fixedly connected to a limit plate. A first motor is fixedly connected to the outside of one of the adjustment plates. The output shaft of the first motor is fixedly connected to one end of one of the second bidirectional threaded rods through a coupling. The two second bidirectional threaded rods are connected by a synchronous belt and a pulley. Threaded plates are symmetrically arranged on the outside of the second bidirectional threaded rods. Guide grooves for the movement of the threaded plates are opened on the contact surfaces of the adjustment plates and the sandblasting box. Mounting plates are fixedly connected to the upper surfaces of the multiple threaded plates.

[0017] As a further improvement to this technical solution, the flipping assembly includes rotating rods rotatably connected to the outside of multiple mounting plates. The other ends of the multiple rotating rods are respectively fixedly connected to the outside of multiple fixed plates. A second motor is fixedly connected to the outside of one of the mounting plates. The output shaft of the second motor is fixedly connected to one end of one of the rotating rods through a coupling. The two rotating rods are connected by a synchronous belt and a pulley for transmission.

[0018] As a further improvement to this technical solution, a transmission plate is fixedly connected to the top of the inside of the sandblasting box, and a third motor is fixedly connected to the outside of the sandblasting box. The output shaft of the third motor is fixedly connected to a lead screw through a coupling. The other end of the lead screw is rotatably connected to the inner side wall of the transmission plate. A threaded block is threadedly connected to the outside of the lead screw. A guide groove for the threaded block to move is opened at the bottom of the transmission plate. The bottom of the threaded block is fixedly connected to the upper surface of the moving plate.

[0019] As a further improvement to this technical solution, the purification assembly includes a filter box and an air pump respectively disposed on the upper surface of the rear plate. Mounting holes for installing air intake heads are provided through both sides of the outer wall of the sandblasting box. Each of the two air intake heads has an internal intercepting mesh. The air intake end of the air pump is connected to the interior of the two air intake heads via a pipe, and the air outlet end of the air pump is connected to the interior of the filter box via a pipe. Filter screens are symmetrically arranged inside the filter box. A top plate is fixedly connected to the upper surface of the filter screen, and insert blocks are symmetrically arranged at the bottom of the top plate. The filter box has symmetrical fixed frames on both sides of its outer wall. A fixed sleeve is fixedly connected to the outside of the fixed frame. A fixed rod is provided inside the fixed sleeve. A pull plate is fixedly connected to one end of the fixed rod. An abutment plate is fixedly connected to the outside of the fixed rod. A return spring is sleeved on the outside of the fixed rod. The return spring abuts between the abutment plate and the fixed sleeve. The contact surfaces of the fixed sleeve and the fixed frame are provided with guide grooves for the movement of the fixed rod. The insert block is provided with guide grooves for the movement of the fixed rod. An exhaust pipe is connected to the outside of the filter box.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In this type of aluminum profile sandblasting device for doors and windows, through the inclusion of a fixing component, an adjusting component, a tilting component, and a cleaning component, when sandblasting of the aluminum profile is required, the distance between the fixing components is first adjusted according to the length of the aluminum profile. The adjusting component then operates, effectively adjusting the distance between the fixing components. After the distance between the fixing components is adjusted, the aluminum profile is fixed in place. Once the aluminum profile is fixed, the sandblasting equipment begins operation. The sandblasting equipment and the sandblasting head work together to effectively sandblast the aluminum profile. During the operation of the sandblasting equipment, the tilting component also operates synchronously. At this time, the flipping component will drive the fixing component to rotate synchronously, and the fixing component will then drive the aluminum body to rotate synchronously. This allows the aluminum body to be flipped, enabling the sandblasting equipment and sandblasting head to perform comprehensive and uniform sandblasting on the aluminum body, effectively improving the sandblasting efficiency and effect. During the sandblasting process, a large amount of dust will be generated. At this time, the purification component will start to operate, effectively adsorbing and purifying the dust, thereby preventing the dust from being emitted into the external environment. This not only effectively protects the health of the staff, but also effectively improves the overall safety factor of the device during use, saving time and effort. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0024] Figure 3 This is a cross-sectional three-dimensional structural diagram of the fixing plate and the transmission plate in this utility model;

[0025] Figure 4 This is a rear-view three-dimensional structural diagram of the present invention;

[0026] Figure 5 for Figure 3 Enlarged structural diagram of region A in the middle;

[0027] Figure 6 for Figure 4 A magnified structural diagram of region B in the middle.

[0028] The meanings of the labels in the diagram are as follows:

[0029] 1. Sandblasting box; 2. Sandblasting equipment; 3. Aluminum body; 4. Adjusting plate; 5. First motor; 6. Second bidirectional threaded rod; 7. Threaded plate; 8. Mounting plate; 9. Fixing plate; 10. Limiting plate; 11. Synchronous belt; 12. Second motor; 13. Transmission plate; 14. Third motor; 15. Lead screw; 16. Threaded block; 17. Moving plate; 18. Sandblasting head; 19. Rear plate; 20. Suction head; 21. Interception net; 22. Filter box; 23. Suction pump; 24. Filter screen; 25. Top plate; 26. Insert block; 27. Fixing sleeve; 28. Exhaust pipe; 29. ​​Rotating rod; 30. First bidirectional threaded rod; 31. Knob; 32. Abutment clamp; 33. Fixing frame; 34. Fixing rod; 35. Abutment plate; 36. Return spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 - Figure 6 As shown, this embodiment provides a sandblasting device for aluminum profiles for doors and windows, including a sandblasting box 1, and further comprising:

[0032] The aluminum body 3 is located inside the sandblasting box 1;

[0033] The fixing components are located inside the sandblasting box 1;

[0034] The adjustment components are symmetrically arranged at the bottom of the sandblasting box 1;

[0035] The flip-over assembly is located inside the sandblasting chamber 1;

[0036] The sandblasting equipment 2 is fixedly connected to the upper surface of the sandblasting box 1. The sandblasting box 1 has a movable plate 17 inside. The movable plate 17 has symmetrical mounting holes for installing sandblasting heads 18 inside. The sand outlet end of the sandblasting equipment 2 is connected to the inside of the two sandblasting heads 18 through a pipe.

[0037] The rear plate 19 is fixedly connected to the rear end surface of the sandblasting box 1;

[0038] The purification component is located on the upper surface of the rear panel 19.

[0039] The working principle described above is as follows: When sandblasting is required on the aluminum body 3, the distance between the fixing components is first adjusted according to the length of the aluminum body 3. The adjusting component then starts operating, effectively adjusting the distance between the fixing components. After the distance between the fixing components is adjusted, the aluminum body 3 is then fixed using the fixing components. Once the aluminum body 3 is fixed, the sandblasting equipment 2 starts operating. At this point, the sandblasting equipment 2, in conjunction with the sandblasting head 18, effectively sandblasts the aluminum body 3. During the operation of the sandblasting equipment 2, the tilting component also starts operating simultaneously, which in turn drives the fixing components. The fixed components rotate synchronously, and the aluminum body 3 rotates synchronously, which allows the aluminum body 3 to be flipped over. This enables the sandblasting equipment 2 and the sandblasting head 18 to perform comprehensive and uniform sandblasting on the aluminum body 3, effectively improving the sandblasting efficiency and effect. During the sandblasting process, a large amount of dust is generated. At this time, the purification component starts to operate. The purification component can effectively adsorb and purify the dust, thereby preventing the dust from being emitted into the external environment. This not only effectively protects the health of the staff, but also effectively improves the overall safety factor of the device during use, saving time and effort.

[0040] To effectively fix the aluminum body 3, the fixing assembly includes multiple fixing plates 9 set inside the sandblasting box 1. The bottom of the fixing plate 9 is rotatably connected to a first bidirectional threaded rod 30. The other end of the first bidirectional threaded rod 30 extends to the outside of the fixing plate 9 and is fixedly connected to a knob 31. The outside of the first bidirectional threaded rod 30 is symmetrically provided with abutment clamps 32. The outside of the fixing plate 9 is provided with guide grooves for the abutment clamps 32 to move. When it is necessary to fix the aluminum body 3, simply put the aluminum body 3 on the outside of the abutment clamps 32 and then turn the knob 31. At this time, the knob 31 will drive the first bidirectional threaded rod 30 to rotate synchronously, and the abutment clamps 32 will move synchronously outside the first bidirectional threaded rod 30. When the abutment clamps 32 abut against the inner wall of the aluminum body 3, the aluminum body 3 can be effectively fixed by the abutment clamps 32.

[0041] Considering that when processing aluminum bodies 3 of different lengths, it is necessary to adjust the distance between the fixing components first, the adjusting components include adjusting plates 4 symmetrically arranged at the bottom of the sandblasting box 1. The inner side wall of the adjusting plate 4 is rotatably connected to a second bidirectional threaded rod 6. The other end of the second bidirectional threaded rod 6 extends to the outside of the adjusting plate 4 and is fixedly connected to a limit plate 10. A first motor 5 is fixedly connected to the outside of one of the adjusting plates 4. The output shaft of the first motor 5 is fixedly connected to one end of one of the second bidirectional threaded rods 6 through a coupling. The two second bidirectional threaded rods 6 are connected by a synchronous belt 11 and a pulley. Threaded plates 7 are symmetrically arranged on the outside of the second bidirectional threaded rods 6. The contact between the adjusting plate 4 and the sandblasting box 1... Each surface is provided with a guide groove for the movement of the threaded plate 7. The upper surfaces of multiple threaded plates 7 are fixedly connected with mounting plates 8. When it is necessary to adjust the distance between the fixing components, the first motor 5 starts to run. At this time, the first motor 5 will drive one of the second bidirectional threaded rods 6 to rotate synchronously. Since the two second bidirectional threaded rods 6 are connected by a synchronous belt 11 and a pulley, the two second bidirectional threaded rods 6 will rotate synchronously. The threaded plate 7 will move synchronously outside the second bidirectional threaded rod 6, driving the mounting plate 8 to move synchronously. The mounting plate 8 then drives the fixing components to move synchronously. At this time, the distance between the fixing components can be adjusted according to the different lengths of the aluminum body 3.

[0042] To effectively flip the aluminum body 3, the flipping assembly includes rotating rods 29 rotatably connected to the outside of multiple mounting plates 8. The other ends of the rotating rods 29 are respectively fixedly connected to the outside of multiple fixed plates 9. A second motor 12 is fixedly connected to the outside of one of the mounting plates 8. The output shaft of the second motor 12 is fixedly connected to one end of one of the rotating rods 29 through a coupling. The two rotating rods 29 are connected by a synchronous belt 11 and a pulley. When the aluminum body 3 needs to be flipped, the second motor 12 starts running. At this time, the second motor 12 will drive one of the rotating rods 29 to rotate synchronously. Since the two rotating rods 29 are connected by a synchronous belt 11 and a pulley, the two rotating rods 29 will rotate synchronously, driving the fixed assembly to rotate synchronously. The fixed assembly then drives the aluminum body 3 to rotate synchronously, thus flipping the aluminum body 3, thereby effectively improving the processing efficiency and effect of the aluminum body 3.

[0043] To effectively adjust the horizontal position of the sandblasting head 18, a transmission plate 13 is fixedly connected to the top of the inside of the sandblasting box 1, and a third motor 14 is fixedly connected to the outside of the sandblasting box 1. The output shaft of the third motor 14 is fixedly connected to a lead screw 15 via a coupling. The other end of the lead screw 15 is rotatably connected to the inner side wall of the transmission plate 13. A threaded block 16 is threadedly connected to the outside of the lead screw 15. A guide groove for the threaded block 16 to move is provided at the bottom of the transmission plate 13. The bottom of the threaded block 16 is fixedly connected to the upper surface of the moving plate 17. When it is necessary to adjust the horizontal position of the sandblasting head 18, the third motor 14 starts to run. At this time, the third motor 14 will drive the lead screw 15 to rotate synchronously, and the threaded block 16 will move synchronously outside the lead screw 15, driving the moving plate 17 to move synchronously. The moving plate 17 then drives the sandblasting head 18 to move synchronously. At this time, the horizontal position of the sandblasting head 18 can be adjusted, thereby effectively improving the sandblasting effect and efficiency of the sandblasting head on the aluminum body 3.

[0044] In addition, in order to effectively adsorb and purify the dust generated during the sandblasting process of the aluminum body 3, the purification component includes a filter box 22 and an air pump 23 respectively installed on the upper surface of the rear plate 19. Mounting holes for installing air suction heads 20 are provided through both sides of the outer wall of the sandblasting box 1. Each air suction head 20 has an internal intercepting mesh 21. The air inlet of the air pump 23 is connected to the interior of the two air suction heads 20 via a pipe, and the air outlet of the air pump 23 is connected to the interior of the filter box 22 via a pipe. Filter screens 24 are symmetrically arranged inside the filter box 22. A top plate 25 is fixedly connected to the upper surface of the filter screens 24, and the bottom of the top plate 25 is symmetrically arranged... The filter box 22 has an insert block 26. Two fixing frames 33 are symmetrically arranged on both sides of the outer wall. A fixing sleeve 27 is fixedly connected to the outside of the fixing frame 33. A fixing rod 34 is located inside the fixing sleeve 27. A pull plate is fixedly connected to one end of the fixing rod 34. An abutment plate 35 is fixedly connected to the outside of the fixing rod 34. A return spring 36 is sleeved on the outside of the fixing rod 34, abutting between the abutment plate 35 and the fixing sleeve 27. Guide grooves for the movement of the fixing rod 34 are opened on the contact surfaces of the fixing sleeve 27 and the fixing frame 33. A guide groove for the movement of the fixing rod 34 is opened inside the insert block 26. An exhaust pipe 28 is connected to the outside of the filter box 22. (The last sentence appears to be incomplete and possibly refers to a process involving aluminum.) During the sandblasting process of the material body 3, a large amount of dust is generated. At this time, simply pull the pull plate, which will move the fixing rod 34 synchronously. The fixing rod 34 then moves the contact plate 35 synchronously. During the movement of the contact plate 35, it will compress the return spring 36. Then, insert the insertion block 26 into the interior of the fixing frame 33. Release the pull plate, and the return spring 36 will return to its original position, moving the contact plate 35 and the fixing rod 34 synchronously. When the fixing rod 34 is inserted into the guide groove inside the insertion block 26, the insertion block 26 and the fixing frame 33 are fixed together. At this point, the filter screen 24 can be fixedly installed. After the filter screen 24 is installed, the suction pump 23 starts to run. At this time, the suction pump 23 will draw the dust inside the sandblasting box 1 into the filter box 22 through the suction head 20. When the dust enters the filter box 22, the filter screen 24 can effectively filter and purify the dust. The purified gas is then discharged through the exhaust pipe 28. At this time, the dust can be effectively filtered and purified, thus effectively protecting the environment and the health of the staff. Through the setting of the interception net 21, the sand material used for sandblasting can be effectively intercepted and filtered, so that the suction pump 23 can only effectively adsorb the dust inside the sandblasting box 1.

[0045] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sand blasting device for aluminum material of doors and windows, comprising a sand blasting box (1), characterized in that, Also include: Aluminum body (3) is located in the interior of the sand blasting box (1) ; Fixed components, provided in the interior of the sand blasting box (1) ; Adjustment assembly, symmetrically arranged at the bottom of the sand blasting box (1) ; Turnover assembly, provided in the interior of the sand blasting box (1) ; Sand blasting equipment (2), fixedly connected to the upper surface of the sand blasting box (1), the interior of the sand blasting box (1) is provided with a moving plate (17), the interior of the moving plate (17) is symmetrically provided with a mounting hole for mounting a sand blasting head (18), the sand outlet end of the sand blasting equipment (2) is communicated with the interiors of two sand blasting heads (18) through a pipeline; Rear plate (19), fixedly connected to the rear end surface of the sand blasting box (1) ; Purification assembly, provided on the upper surface of the rear plate (19).

2. The sand blasting device for aluminum material of doors and windows according to claim 1, characterized in that: The fixed assembly comprises a plurality of fixed plates (9) arranged in the interior of the sand blasting box (1), the interior bottom end of the fixed plate (9) is rotatably connected with a first bidirectional threaded rod (30), the other end of the first bidirectional threaded rod (30) extends to the outside of the fixed plate (9) and is fixedly connected with a knob (31), the outside of the first bidirectional threaded rod (30) is symmetrically provided with a resisting clamp (32), and the outside of the fixed plate (9) is provided with a guide groove for the movement of the resisting clamp (32).

3. The sand blasting device for aluminum material of doors and windows according to claim 1, characterized in that: The adjustment assembly comprises adjustment plates (4) symmetrically arranged at the bottom of the sand blasting box (1), the inner side wall of the adjustment plate (4) is rotatably connected with a second bidirectional threaded rod (6), the other end of the second bidirectional threaded rod (6) extends to the outside of the adjustment plate (4) and is fixedly connected with a limiting disc (10), one of the adjustment plates (4) is fixedly connected with a first motor (5), the output shaft of the first motor (5) is fixedly connected with one end of one of the second bidirectional threaded rods (6) through a shaft coupling, the two second bidirectional threaded rods (6) are drivingly connected through a synchronous belt (11) and a belt wheel, the outside of the second bidirectional threaded rod (6) is symmetrically provided with a threaded plate (7), the contact surface of the adjustment plate (4) and the sand blasting box (1) is provided with a guide groove for the movement of the threaded plate (7), and the upper surfaces of the plurality of threaded plates (7) are fixedly connected with mounting plates (8).

4. The sand blasting device for aluminum material of doors and windows according to claim 3, characterized in that: The turnover assembly comprises rotating rods (29) rotatably connected to the outside of the mounting plates (8), the other ends of the rotating rods (29) are fixedly connected with the outside of the fixed plates (9), one of the mounting plates (8) is fixedly connected with a second motor (12), the output shaft of the second motor (12) is fixedly connected with one end of one of the rotating rods (29) through a shaft coupling, and the two rotating rods (29) are drivingly connected through a synchronous belt (11) and a belt wheel.

5. The sand blasting device for aluminum material of doors and windows according to claim 1, characterized in that: The inside top end of the sand blasting box (1) is fixedly connected with a transmission plate (13), the outside of the sand blasting box (1) is fixedly connected with a third motor (14), the output shaft of the third motor (14) is fixedly connected with a lead screw (15) through a shaft coupling, the other end of the lead screw (15) is rotatably connected with the inner side wall of the transmission plate (13), the outside of the lead screw (15) is threadedly connected with a threaded block (16), the bottom of the transmission plate (13) is provided with a guide groove for the movement of the threaded block (16), and the bottom of the threaded block (16) is fixedly connected with the upper surface of a moving plate (17).

6. The sand blasting device for aluminum material of doors and windows according to claim 1, characterized in that: The purification assembly comprises a filter box (22) and an air suction pump (23) arranged on the upper surface of the rear plate (19), respectively, the outer wall of the sand blasting box (1) is provided with mounting holes for mounting air suction heads (20) on both sides, the inside of the two air suction heads (20) is provided with intercepting nets (21), the air suction pump (23) is connected with the inside of the two air suction heads (20) through pipelines at the air inlet end, the air outlet end of the air suction pump (23) is connected with the inside of the filter box (22) through a pipeline, the inside of the filter box (22) is symmetrically provided with filter screens (24), the upper surface of the filter screen (24) is fixedly connected with a top plate (25), the bottom of the top plate (25) is symmetrically provided with plug blocks (26), the outer wall of the filter box (22) is symmetrically provided with fixed frames (33) on both sides, the outside of the fixed frame (33) is fixedly connected with a fixed sleeve (27), the inside of the fixed sleeve (27) is provided with a fixed rod (34), one end of the fixed rod (34) is fixedly connected with a pull plate, the outside of the fixed rod (34) is fixedly connected with a contact disc (35), the outside of the fixed rod (34) is sleeved with a reset spring (36), the reset spring (36) is in contact between the contact disc (35) and the fixed sleeve (27), the contact surfaces of the fixed sleeve (27) and the fixed frame (33) are provided with guide grooves for the movement of the fixed rod (34), the inside of the plug block (26) is provided with a guide groove for the movement of the fixed rod (34), and the outside of the filter box (22) is communicated with an exhaust pipe (28).

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