A mobile vacuum suction machine

By designing an electric telescopic rod, threaded rod, and rotating rod in conjunction with a brush strip to rotate and clean the filter screen in the vacuum feeder, the problem of powder material clogging the filter holes is solved, achieving stable operation of the equipment and extending the life of the filter screen. The device also has the functions of movement and height adjustment.

CN224449480UActive Publication Date: 2026-07-03PINGTAN COMPREHENSIVE EXPERIMENTAL ZONE ZHAOFENG PLASTIC TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PINGTAN COMPREHENSIVE EXPERIMENTAL ZONE ZHAOFENG PLASTIC TECHNOLOGY CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-03

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Abstract

The utility model relates to material conveying equipment technical field especially relates to a mobile vacuum suction machine, including the bunker, the upper side of bunker is equipped with vacuum pump, the round plate is rotatably installed in the bunker, the filter screen is fixedly embedded in the installation mouth, the sidewall fixed mounting of bunker has the suction pipe, the symmetrical rotatory installation of the bunker has the rotating rod, the surface fixed mounting of rotating rod has many brush strips, one end of rotating rod passes out the bunker, and is provided with the thread groove, the thread groove is screw thread installed with the threaded rod, the surface fixed mounting of bunker has the electric telescopic link, the drive shaft of electric telescopic link is fixedly installed with the moving plate through the connecting rod, the surface of moving plate is fixedly connected with the end of two threaded rods, through the cooperation between electric telescopic link, threaded rod and rotating rod, can control many brush strips and rotate, reach the effect that clean filter screen, avoid the powder impurity and attach on the surface of filter screen and affect the ventilation of filter screen.
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Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to a mobile vacuum material feeding machine. Background Technology

[0002] Vacuum feeders, as modern material handling equipment, rely on the pressure difference between vacuum and the outside environment to drive airflow in a closed pipe, achieving efficient conveying of granular or powdered materials. This dust-free conveying method not only effectively isolates dust leakage and creates a clean working environment, but also reduces the risk of material contamination from the outside environment and improves product cleanliness.

[0003] In actual operation, the vacuum pump applies negative pressure to the hopper of the feeder, and the material is sucked into it through the hose. The built-in filter screen is responsible for intercepting the material and protecting the vacuum pump. However, during the feeding process, fine powder that falls off the surface of powder or granules will adhere to the filter screen under the airflow, clogging the filter holes, causing the equipment's suction to decrease and the feeding to be obstructed. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: during the material suction process, fine powder that falls off the surface of powder materials or granules will adhere to the filter screen under the airflow, clogging the filter holes, resulting in a decrease in the suction power of the equipment and obstruction of material suction. Therefore, a mobile vacuum material suction machine is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mobile vacuum feeder includes a hopper, a vacuum pump connected to its interior is provided above the hopper, a circular plate is rotatably installed inside the hopper, mounting openings are symmetrically opened on the surface of the circular plate, a filter screen is fixedly embedded in the mounting opening, a suction pipe is fixedly installed on the side wall of the hopper, the suction pipe is located below the filter screen, and the hopper is moved by a moving component.

[0007] A rotating rod is symmetrically and rotatably installed inside the hopper. Multiple brush strips are fixedly installed on the surface of the rotating rod. The rotating rod is located above the filter screen. One end of the rotating rod extends out of the hopper and has a threaded groove. A threaded rod is threadedly installed in the threaded groove. An electric telescopic rod is fixedly installed on the surface of the hopper. A movable plate is fixedly installed on the drive shaft of the electric telescopic rod through a connecting rod. The surface of the movable plate is fixedly connected to the ends of the two threaded rods.

[0008] Preferably, the moving component includes a mounting plate, a lifting cylinder fixedly mounted on the upper surface of the mounting plate, and a top plate fixedly connected to the drive shaft of the lifting cylinder. The top plate is fixedly connected to the hopper, and a plurality of casters with self-locking structures are fixedly mounted on the lower surface of the mounting plate.

[0009] Preferably, the hopper is equipped with a transmission component, which is used to control the reciprocating rotation of the circular plate.

[0010] Preferably, the transmission component includes a moving rod, a cam, and a hinge rod. A fixed rod is fixedly installed at the center of the upper surface of the circular plate. The fixed rod is fixedly connected to the cam. A sliding opening is provided on the surface of the hopper. The moving rod is horizontally slidably inserted into the sliding opening. A rotating opening is provided at one end of both the moving rod and the cam. A rotating shaft is vertically rotatably installed in the rotating opening. The two ends of the hinge rod are respectively rotatably sleeved on the two rotating shafts. The end of the moving rod located on the outside is fixedly connected to the surface of the moving plate.

[0011] Preferably, multiple brush strips are arranged at equal intervals on the surface of the rotating rod, and the brush strips are made of polypropylene.

[0012] Preferably, the filter screen is made of stainless steel, and the mesh size of the filter screen is smaller than the material size.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the cooperation of the electric telescopic rod, threaded rod and rotating rod, multiple brush strips can be controlled to rotate, so as to clean the filter screen and prevent powder impurities from adhering to the surface of the filter screen and affecting the air permeability of the filter screen;

[0015] 2. The movable component makes it easy to move the device around, and the height of the device can also be adjusted, which improves the overall practicality of the device;

[0016] 3. The transmission components can control the reciprocating rotation of the circular plate and the filter screen, making the brush bar clean the filter screen more thoroughly, while also reducing the wear of the filter screen and brush bar and extending their service life. Attached Figure Description

[0017] Figure 1 This is a frontal perspective view of a mobile vacuum feeder proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the material hopper in a mobile vacuum feeder proposed in this utility model;

[0019] Figure 3 This is a top-view three-dimensional structural diagram of the material hopper in a mobile vacuum feeder proposed in this utility model;

[0020] Figure 4 for Figure 2 Enlarged view of the structure at point A in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of the structure at point B in the middle.

[0022] In the diagram: 1. hopper, 2. vacuum pump, 3. circular plate, 4. filter screen, 5. suction pipe, 6. rotating rod, 7. brush strip, 8. threaded rod, 9. electric telescopic rod, 10. moving plate, 11. mounting plate, 12. lifting cylinder, 13. top plate, 14. caster wheel, 15. moving rod, 16. cam, 17. hinge rod, 18. fixing rod, 19. rotating shaft. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0025] Reference Figures 1-5 A mobile vacuum feeder includes a hopper 1. A vacuum pump 2 connected to the hopper 1 is located above the hopper 1. A circular plate 3 is rotatably installed inside the hopper 1. The surface of the circular plate 3 has symmetrically opened mounting ports. A filter screen 4 is fixedly embedded in the mounting ports. The filter screen 4 is made of stainless steel and the mesh size of the filter screen 4 is smaller than the size of the material. A suction pipe 5 is fixedly installed on the side wall of the hopper 1 and is located below the filter screen 4. The hopper 1 is moved by a moving component.

[0026] A rotating rod 6 is symmetrically and rotatably installed inside the hopper 1. Multiple brush strips 7 are fixedly installed on the surface of the rotating rod 6. The multiple brush strips 7 are arranged at equal intervals on the surface of the rotating rod 6, and the material of the brush strips 7 is polypropylene. The rotating rod 6 is located above the filter screen 4. One end of the rotating rod 6 extends out of the hopper 1 and has a threaded groove. A threaded rod 8 is threadedly installed in the threaded groove. An electric telescopic rod 9 is fixedly installed on the surface of the hopper 1. The drive shaft of the electric telescopic rod 9 is fixedly installed with a moving plate 10 through a connecting rod. The surface of the moving plate 10 is fixedly connected to the ends of the two threaded rods 8.

[0027] When the vacuum pump 2 is started, the material hopper 1 will be in a vacuum state. At this time, the material located outside will be drawn into the material hopper 1 from the suction pipe 5 under the action of negative pressure. The dust in the material will be adsorbed onto the surface of the filter screen 4. Then, the electric telescopic rod 9 can be started, so that the moving plate 10 moves laterally back and forth with the two threaded rods 8. During the movement, since the two threaded rods 8 cannot rotate, the two rotating rods 6 will move back and forth with the multiple brush strips 7 under the cooperation between the threads and the thread grooves on the surface of the threaded rods 8. The brush strips 7 and the surface of the filter screen 4 will generate relative movement. The bristles of the brush strips 7 will directly contact the filter screen 4, "brushing off" the powder impurities attached to the mesh of the filter screen 4, keeping the filter screen 4 permeable, and allowing air to pass through normally. This avoids the accumulation of powder impurities and blockage of the filter screen 4, ensuring that the vacuum feeder can work continuously and stably without stopping the machine to clean the filter screen 4.

[0028] The moving assembly includes a mounting plate 11, a lifting cylinder 12 fixedly mounted on the upper surface of the mounting plate 11, and a top plate 13 fixedly connected to the drive shaft of the lifting cylinder 12. The top plate 13 is fixedly connected to the hopper 1. Multiple casters 14 with self-locking structures are fixedly mounted on the lower surface of the mounting plate 11.

[0029] The casters 14 facilitate the movement of the device. Once the device is in a suitable position, the casters 14 can be locked to prevent it from moving during operation. At the same time, the lifting cylinder 12 can be activated to control the top plate 13 to move the hopper 1 vertically, thereby adjusting the height of the device.

[0030] The hopper 1 is equipped with a transmission component, which is used to control the reciprocating rotation of the circular plate 3. The transmission component includes a moving rod 15, a cam 16, and a hinge rod 17. A fixed rod 18 is fixedly installed at the center of the upper surface of the circular plate 3. The fixed rod 18 is fixedly connected to the cam 16. A sliding opening is opened on the surface of the hopper 1. The moving rod 15 is horizontally slidably inserted into the sliding opening. A rotating opening is opened at one end of the moving rod 15 and the cam 16. A rotating shaft 19 is vertically rotatably installed in the rotating opening. The two ends of the hinge rod 17 are respectively rotatably sleeved on the two rotating shafts 19. The end of the moving rod 15 located on the outside is fixedly connected to the surface of the moving plate 10.

[0031] As the moving plate 10 moves laterally back and forth, the moving rod 15 also moves. At this time, the hinge rod 17 rotates, causing the cam 16 and the circular plate 3 to rotate back and forth. As a result, the two filter screens 4 also rotate back and forth. The rotation of the filter screens 4 allows the brush strip 7 to contact different positions of the filter screens 4, avoiding the situation where the filter screens 4 are fixed and the brush strip 7 only cleans certain areas for a long time, resulting in cleaning dead corners. This ensures that all areas of the filter screens 4 are effectively cleaned, keeping the filter screens 4 clear. At the same time, if the filter screens 4 are fixed, the brush strip 7 will rub against the same trajectory for a long time, which will easily aggravate the local wear of the filter screens 4. The small-angle back and forth rotation of the filter screens 4 causes the contact point between the brush strip 7 and the filter screens 4 to change continuously, dispersing wear and extending the service life of the filter screens 4 and the brush strip 7.

[0032] In this invention, the cooperation between the electric telescopic rod 9, the threaded rod 8, and the rotating rod 6 can control the rotation of multiple brush strips 7 to achieve the effect of cleaning the filter screen 4, preventing powder impurities from adhering to the surface of the filter screen 4 and affecting the air permeability of the filter screen 4, and eliminating the need to stop the machine to clean the filter screen 4.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mobile vacuum suction machine comprising a hopper (1), characterized in that, The hopper (1) is equipped with a vacuum pump (2) connected to its interior. A circular plate (3) is rotatably installed inside the hopper (1). The surface of the circular plate (3) is symmetrically provided with installation openings. A filter screen (4) is fixedly embedded in the installation opening. A suction pipe (5) is fixedly installed on the side wall of the hopper (1). The suction pipe (5) is located below the filter screen (4). The hopper (1) is moved by a moving component. A rotating rod (6) is symmetrically and rotatably installed inside the hopper (1). Multiple brush strips (7) are fixedly installed on the surface of the rotating rod (6). The rotating rod (6) is located above the filter screen (4). One end of the rotating rod (6) extends out of the hopper (1) and has a threaded groove. A threaded rod (8) is threadedly installed in the threaded groove. An electric telescopic rod (9) is fixedly installed on the surface of the hopper (1). A moving plate (10) is fixedly installed on the drive shaft of the electric telescopic rod (9) through a connecting rod. The surface of the moving plate (10) is fixedly connected to the ends of the two threaded rods (8).

2. A mobile vacuum suction machine according to claim 1, characterized in that The moving component includes a mounting plate (11), a lifting cylinder (12) fixedly mounted on the upper surface of the mounting plate (11), and a top plate (13) fixedly connected to the drive shaft of the lifting cylinder (12). The top plate (13) is fixedly connected to the hopper (1). A plurality of casters (14) with self-locking structures are fixedly mounted on the lower surface of the mounting plate (11).

3. A mobile vacuum suction machine according to claim 1, characterized in that The hopper (1) is equipped with a transmission component, which is used to control the reciprocating rotation of the circular plate (3).

4. A mobile vacuum suction machine according to claim 3, characterized in that The transmission components include a moving rod (15), a cam (16), and a hinge rod (17). A fixed rod (18) is fixedly installed at the center of the upper surface of the circular plate (3). The fixed rod (18) is fixedly connected to the cam (16). A sliding opening is provided on the surface of the hopper (1). The moving rod (15) is horizontally slidably inserted into the sliding opening. A rotating opening is provided at one end of both the moving rod (15) and the cam (16). A rotating shaft (19) is vertically rotatably installed in the rotating opening. The two ends of the hinge rod (17) are respectively rotatably sleeved on the two rotating shafts (19). The end of the moving rod (15) located on the outside is fixedly connected to the surface of the moving plate (10).

5. A mobile vacuum suction machine according to claim 4, characterized in that Multiple brush strips (7) are arranged at equal intervals on the surface of the rotating rod (6), and the material of the brush strips (7) is polypropylene.

6. A mobile vacuum suction machine according to claim 1, characterized in that The filter screen (4) is made of stainless steel, and the mesh size of the filter screen (4) is smaller than the material size.