Movable vacuum pump trolley with self-cleaning structure

Abstract

The present application relates to the technical field of vacuum pump trolley, in particular to a mobile vacuum pump trolley with self-cleaning structure.The present application can reduce the rate of dust accumulation in the cavity by filtering the gas entering the pump body first to reduce the dust entrained, and can automatically control the electric telescopic rod to start by electrically detecting the dust in the cavity with the dust detection sensor and the detection result, so that the dust on the surface of the blade is treated by the scraper and the raised strips on the outer wall of the scraper, the dust on the outer wall is cleaned away, the wear of the parts inside the pump body is reduced, the service life of the pump body is improved, the automation of the cleaning process is improved, and the scraper can treat the surfaces on both sides of the blade, greatly improving the cleanliness, and the falling dust is collected and treated by the dust collecting plate, which can avoid secondary pollution of the blade and can concentrate the dust for treatment, facilitating operation and improving practicality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum pump trolley, in particular to a mobile vacuum pump trolley with self-cleaning structure. BACKGROUND

[0002] The vacuum pump is a device or equipment that uses mechanical, physical, chemical or physical and chemical methods to pump the container to obtain vacuum. In a broad sense, the vacuum pump is a device that improves, generates and maintains vacuum in a closed space. In order to facilitate movement, the existing vacuum pump is placed on a flat cart to improve the convenience of moving the vacuum pump.

[0003] The main reason restricting the service life of the vacuum pump is that the main transmission part is easy to wear, especially in an environment with a lot of fine dust. Because a large amount of dust is sucked into the vacuum pump and stays in the transmission part, the dust accumulates for a long time, which accelerates the wear of the vacuum pump and greatly reduces the service life of the vacuum pump. SUMMARY

[0004] The purpose of the present application is to provide a mobile vacuum pump trolley with self-cleaning structure to solve the problems in the background art.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a mobile vacuum pump trolley with self-cleaning structure, comprising a mobile trolley, characterized in that: a pump body is arranged inside the mobile trolley, one end of the pump body is provided with a connecting pipe, the connecting pipe is in communication with a filter assembly, an air cavity is arranged inside the pump body, an impeller and an impeller sleeve are arranged inside the air cavity, the impeller and the impeller sleeve are coaxial, the impeller sleeve and the impeller are connected through a limiting assembly, the impeller and the impeller sleeve rotate coaxially, and the impeller sleeve can be axially displaced, a driving assembly is arranged inside the air cavity to drive the displacement of the impeller sleeve, a plurality of connecting strips are equidistantly arranged on the outer wall of the impeller, one end of each connecting strip extends to the outside of the impeller sleeve and is provided with a blade, a plurality of scraping blades are equidistantly arranged on the outer wall of the impeller sleeve, the blades and the scraping blades are alternately distributed, and the blades and the scraping blades are the same in shape and size, a plurality of protruding strips are symmetrically arranged on the outer wall of the scraping blade, the protruding strips scrape the dust accumulated on the outer wall of the blade when they are displaced, and a discharge assembly is arranged at the bottom of the pump body to discharge the scraped dust outside the pump body.

[0006] The limiting assembly comprises a protruding block, the protruding block is arranged on the outer wall of the impeller, an arc-shaped groove matched with the protruding block is arranged on the inner side wall of the impeller sleeve, the length of the arc-shaped groove is the same as the length of the protruding block, and the curvature of the arc-shaped groove is the same as the curvature between adjacent two blades.

[0007] Further, the driving assembly comprises a connecting disc, the impeller sleeve is arranged on the outer wall of the connecting disc, an electric telescopic rod is arranged in the cavity, the telescopic end of the electric telescopic rod is fixedly connected with the connecting disc, one end of the electric telescopic rod is fixedly connected with the inner wall of the cavity through a connecting plate two, and a dust detection sensor is arranged on the connecting plate two.

[0008] Further, the outer wall of one end of the impeller sleeve connected with the connecting disc is provided with a ratchet wheel, and the connecting disc is provided with a pawl matched with the ratchet wheel, which is used for controlling the one-way rotation of the impeller sleeve.

[0009] Further, the discharging assembly comprises a pullable dust collecting box, a dust discharging groove is arranged above the dust collecting box on the bottom of the pump body, connecting plates one are arranged at two ends of the dust discharging groove on the bottom of the pump body, a connecting shaft is rotatably arranged between the two connecting plates one, a plurality of dust collecting plates are equidistantly arranged on the outer wall of the connecting shaft, and the maximum distance between adjacent two dust collecting plates is greater than the width of the dust discharging groove.

[0010] Further, one end of the dust collecting box extends to the outside of the moving trolley, a groove matched with the dust collecting box is arranged on the side wall of the moving trolley, and the dust collecting box can be pulled out of the groove.

[0011] Further, one end of the dust collecting box extending to the outside of the moving trolley is provided with a pull handle, and the pull handle can be connected with the moving trolley through a fastening screw.

[0012] Further, the height of the dust collecting plate is less than the distance between the connecting shaft and the outer wall of the pump body, the outer wall of the dust collecting plate is wrapped with a rubber layer, the height of the dust collecting plate plus the thickness of the rubber layer is greater than the distance between the connecting shaft and the outer wall of the pump body, and the rubber layer of the outer wall of the dust collecting plate on the side closest to the dust discharging groove is attached to the outer wall of the pump body, so that the dust collecting plate and the pump body are sealed.

[0013] Further, the filter assembly comprises a filter pipeline and a filter core, the filter core is embedded in the filter pipeline, and one end of the filter pipeline is penetrated with the connecting pipe.

[0014] Further, the filter assembly comprises a filter pipeline and a filter core, the filter core is embedded in the filter pipeline, and one end of the filter pipeline is penetrated with the connecting pipe, so that the gas entering the pump body is first filtered, and the dust entering the cavity can be reduced.

[0015] Further, the moving trolley comprises a trolley plate and a trolley frame, the trolley frame is arranged on the top of the trolley plate, the pump body is arranged in the trolley frame, a plurality of universal wheels are arranged on the bottom of the trolley plate, a push handle is arranged on one side of the top of the trolley plate, and the pump body is convenient to move.

[0016] Compared with the prior art, the present application has the advantages of:

[0017] The present application can reduce the rate of dust accumulation in the cavity by filtering the gas entering the pump body first to reduce the dust entrained, and can automatically control the electric telescopic rod to start by electrically detecting the dust in the cavity with the dust detection sensor, so that the raised strips on the outer wall of the scraper and the outer wall of the blade can process the dust on the surface of the blade and clean the dust on the outer wall, reducing the wear of the internal parts of the pump body, improving the service life of the pump body, improving the automation of the cleaning process, and the scraper can process both sides of the blade, greatly improving the cleanliness, and the falling dust is collected and processed by the dust collecting plate, which can avoid secondary pollution of the blade and can concentrate the dust for easy operation and improve the practicality. When the dust in the dust collecting box accumulates, the dust collecting box can be pulled out for processing the dust inside when the operator has time to operate, which is simple to operate, and the dust collecting plate and the pump body are tightly connected when the dust collecting box is pulled out, with a rubber layer to improve the sealing performance, without affecting the normal work of the pump body. When performing vacuum work, the scraper blocks most of the resistance of the blade, so the wear of the blade is reduced and the service life of the blade is increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0019] Figure 1 is a structural schematic diagram of the cavity inside the present application;

[0020] Figure 2 is a structural schematic diagram of the cavity inside the present application;

[0021] Figure 3 is a structural schematic diagram of the cavity inside the present application;

[0022] Figure 4 is a structural schematic diagram of the cavity inside the present application from another angle;

[0023] Figure 5 is a structural schematic diagram of the blade of the present application;

[0024] Figure 6 is a structural schematic diagram of the blade of the present application from another angle;

[0025] Figure 7 is a structural schematic diagram of the guide block of the present application;

[0026] Figure 8 is a structural schematic diagram of the dust collecting box of the present application;

[0027] Figure 9 is a structural schematic diagram of the dust receiving plate of the present application;

[0028] Figure 10 is a structural schematic diagram of the filter cartridge of the present application;

[0029] In the figure: 1, moving trolley; 2, pump body; 3, connecting pipe; 4, cavity; 5, impeller; 6, impeller sleeve; 7, vane; 8, scraper; 9, protruding strip; 10, protruding block; 11, arc-shaped groove; 12, connecting disc; 13, electric telescopic rod; 14, connecting strip; 15, dust discharging notch; 16, connecting plate one; 17, notch; 18, pulling handle; 19, fastening screw; 20, polygonal groove; 21, rubber layer; 22, ratchet wheel; 23, dust collecting box; 24, connecting shaft; 25, dust receiving plate; 26, pawl; 32, connecting plate two; 33, dust detection sensor; 34, filter pipeline; 35, filter cartridge; 36, trolley plate; 37, trolley frame body. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] Please refer to Figures 1-10This invention provides a technical solution: a mobile vacuum pump trolley with a self-cleaning structure, comprising a mobile trolley 1, a pump body 2 inside the mobile trolley 1, a connecting pipe 3 at one end of the pump body 2, the connecting pipe 3 communicating with a filter assembly, a cavity 4 inside the pump body 2, an impeller 5 and an impeller sleeve 6 inside the cavity 4, the impeller 5 and the impeller sleeve 6 being coaxial, the impeller sleeve 6 and the impeller 5 being connected by a limiting assembly, the impeller 5 and the impeller sleeve 6 rotating coaxially, and the impeller sleeve 6 being axially displaceable, a driving assembly for driving the displacement of the impeller sleeve 6 inside the cavity 4, and a plurality of connecting strips 14 equidistantly arranged on the outer wall of the impeller 5, one end of the connecting strip 14 extending to the outside of the impeller sleeve 6 and having a blade. The impeller sleeve 6 has several scraper blades 8 evenly spaced on its outer wall. The blades 7 and scraper blades 8 are alternately distributed and have the same shape and size. During vacuum operation, the impeller 5 drives the connecting strip 14 to rotate, and the connecting strip 14 drives the blades 7 to rotate in the forward direction. At this time, the blades 7 will move to a position that fits with the scraper blades 8, thereby driving the scraper blades 8 to rotate synchronously. Since the scraper blades 8 are located in front of the forward movement of the blades 7, the scraper blades 8 will be subject to great resistance, thereby reducing the wear of the blades 7 and increasing the service life of the blades 7. The outer wall of the scraper blades 8 has several raised strips 9 symmetrically arranged. When the raised strips 9 are displaced, they scrape off the dust accumulated on the outer wall of the blades 7. The bottom of the pump body 2 is provided with a discharge assembly for discharging the scraped dust to the outside of the pump body 2.

[0032] The limiting component includes a protrusion 10, which is disposed on the outer wall of the impeller 5. The inner side wall of the impeller sleeve 6 is provided with an arc-shaped groove 11 that matches the protrusion 10. The length of the arc-shaped groove 11 is the same as the length of the protrusion 10, and the curvature of the arc-shaped groove 11 is the same as the curvature between two adjacent blades 7. When the blade 7 rotates in the forward direction, it will drive the protrusion 10 to move to one end of the arc-shaped groove 11, thereby generating a driving force on the arc-shaped groove 11, which in turn can drive the impeller sleeve 6 to rotate synchronously, so as to achieve the purpose of synchronous rotation of the scraper 8 on its outer wall.

[0033] The drive assembly includes a connecting disk 12, and the impeller sleeve 6 is rotatably mounted on the outer wall of the connecting disk 12. An electric telescopic rod 13 is provided inside the cavity 4. The telescopic end of the electric telescopic rod 13 is fixedly connected to the connecting disk 12. One end of the electric telescopic rod 13 is fixedly connected to the inside of the cavity 4 through a connecting plate 32. A dust detection sensor 33 is provided on the connecting plate 32. The distance that the electric telescopic rod 13 can move is the same as the distance between the outermost protrusions 9 at both ends and the ends of the blades 7. That is, when the protrusions 9 are moved, the two outermost protrusions 9 can move to the ends of the blades 7, so that the entire surface of one side of the blades 7 can be cleaned.

[0034] The outer wall of the end of the impeller sleeve 6 connected with the connecting disc 12 is provided with a ratchet wheel 22, and the connecting disc 12 is provided with a pawl 26 matched with the ratchet wheel 22, for controlling the one-way rotation of the impeller sleeve 6. When the vacuum work is carried out, the rotor drives the impeller 5 to rotate forward, at this time, the impeller sleeve 6 also drives the ratchet wheel 22 to rotate forward, at this time, the pawl 26 does not limit the ratchet wheel 22, when the dust is cleaned, the impeller 5 drives the blade 7 to rotate reversely, at this time, the pawl 26 limits the ratchet wheel 22, so that the impeller sleeve 6 cannot rotate reversely, thereby ensuring that the scraper 8 cannot move reversely synchronously with the blade 7, and further enabling the other side of the blade 7 to also move to the position abutting against the scraper 8.

[0035] The discharge assembly comprises a pullable dust collecting box 23, the bottom of the pump body 2 is provided with a dust discharging slot 15 above the dust collecting box 23, the dust discharging slot 15 is through the dust collecting box 23, the bottom of the pump body 2 is provided with a connecting plate one 16 at both ends of the dust discharging slot 15, a connecting shaft 24 is rotatably arranged between the two connecting plate ones 16, both ends of the connecting shaft 24 are respectively rotatably connected with the connecting plate ones 16, a plurality of dust collecting plates 25 are equidistantly arranged on the outer wall of the connecting shaft 24, the maximum distance between adjacent two dust collecting plates 25 is greater than the width of the dust discharging slot 15, and the space between adjacent two dust collecting plates 25 is a dust collecting grid.

[0036] One end of the dust collecting box 23 extends to the outside of the moving trolley 1, a slot 17 matched with the dust collecting box 23 is arranged on the side wall of the moving trolley 1, and the dust collecting box 23 can be pulled out from the slot 17.

[0037] One end of the dust collecting box 23 extending to the outside of the moving trolley 1 is provided with a pull handle 18, the pull handle 18 can be connected with the moving trolley 1 through a fastening screw 19, and after the dust collecting box 23 is fixed, it is completely sealed with the moving trolley 1 and the connecting plate one 26, so as to ensure the sealing performance of the inside of the pump body 2.

[0038] One end of the connecting shaft 24 extends to the outside of the moving trolley 1 after penetrating through the dust collecting box 23, and a polygonal groove 20 is arranged at the end of the one end, and a polygonal tool matched with the polygonal groove 20 can be used to control the rotation of the connecting shaft 24.

[0039] The height of the dust receiving plate 25 is less than the distance between the connecting shaft 24 and the outer wall of the pump body 2, the outer wall of the dust receiving plate 25 is wrapped with a rubber layer 21, the height of the dust receiving plate 25 plus the thickness of the rubber layer 21 is greater than the distance between the connecting shaft 25 and the outer wall of the pump body 2, the rubber layer 21 of the outer wall of the dust receiving plate 25 closest to the dust discharging slot 15 is attached to the outer wall of the pump body 2, thereby sealing the dust receiving plate 25 and the pump body 2, and when the dust receiving plate 25 rotates, the rubber layer 21 attached to the pump body 2 can be deformed, so that the dust receiving plate 25 can rotate normally.

[0040] The filter assembly comprises a filter pipe 34 and a filter core 35, the filter core 35 is embedded in the filter pipe 34, one end of the filter pipe 34 is penetrated by the connecting pipe 3, and the gas can be filtered when passing through the filter core 35, thereby reducing the dust entrained, so that the rate of dust accumulation in the cavity 4 can be reduced.

[0041] The moving trolley 1 comprises a trolley plate 36 and a trolley frame 37, the trolley frame 37 is located on the top of the trolley plate 36, the pump body 2 is located in the trolley frame 37, a plurality of universal wheels are arranged on the bottom of the trolley plate 36, and a push handle is arranged on one side of the top of the trolley plate 36, so that the moving trolley 1 can be controlled to move at will by using the push handle and the universal wheels, thereby achieving the purpose of moving the pump body 2.

[0042] The specific implementation is: when in use, the gas entering the inside of the pump body 2 will first pass through the filter assembly for filtration, reducing the accumulation of dust inside the pump body 2, when the dust detection sensor 33 detects that there is a large amount of dust inside the cavity 4, the electric telescopic rod 13 can be started to displace the connecting disc 12, the connecting disc 12 can displace the impeller sleeve 6, and the impeller sleeve 6 will displace the plurality of scrapers 8 to reciprocate, since one side of the scraper 8 is in contact with the blade at this time, the protruding strips 9 on the outer wall of the scraper 8 will rub against the blade 7 to scrape off the dust adhered to the outer wall of the blade 7, after cleaning the surface of one side of the blade 7, the rotor can be controlled to rotate in reverse to drive the impeller 5 to rotate in reverse, it should be noted that the rotor rotates in the forward direction when performing vacuum work, the impeller rotating in the reverse direction will displace the connecting strip in the reverse direction, so as to displace the blade 7 in the reverse direction, so that the other surface of the blade 7 is in contact with the protruding strips 9, so as to clean the other surface of the blade 7 to scrape off all the dust on the outer wall of the blade 7, the falling dust will accumulate between the two dust collecting plates 25, when the dust accumulates to a certain amount, a tool can be inserted into the polygonal groove to drive the connecting shaft 24 to rotate, so as to displace the dust collecting plate 25 by sixty degrees, so that the current dust collecting plate moves to the side, and the accumulated dust will fall into the dust collecting box along the inclined angle of the dust collecting plate, the dust collecting plate 25 collecting dust is cleaned to ensure that the dust collecting plate 25 can be reused, when the dust collecting box accumulates dust and the operator has time to operate, the dust collecting box can be pulled out to clean the collected dust, and the cleaned dust collecting box is inserted again and fixed by the fastening screw, so that the dust cleaning is completed.

[0043] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A mobile vacuum pump trolley with self-cleaning structure, comprising a mobile trolley (1), characterized in that: The mobile trolley (1) is internally provided with a pump body (2), one end of the pump body (2) is provided with a connecting pipe (3), the connecting pipe (3) is communicated with a filtering assembly, the pump body (2) is internally provided with a cavity (4), the cavity (4) is internally provided with an impeller (5) and an impeller sleeve (6), the impeller (5) and the impeller sleeve (6) are coaxial, the impeller sleeve (6) and the impeller (5) are connected through a limiting assembly, the impeller (5) and the impeller sleeve (6) rotate coaxially, and the impeller sleeve (6) can be axially displaced, the cavity (4) is internally provided with a driving assembly for driving the displacement of the impeller sleeve (6), the outer wall of the impeller (5) is equally provided with a plurality of connecting strips (14), one end of the connecting strip (14) extending to the outside of the impeller sleeve (6) is provided with a blade (7), the outer wall of the impeller sleeve (6) is equally provided with a plurality of scraping blades (8), the blade (7) and the scraping blade (8) are alternately distributed, and the blade (7) and the scraping blade (8) are the same in shape and size, the outer wall of the scraping blade (8) is symmetrically provided with a plurality of protruding strips (9), when the protruding strip (9) is displaced, the dust accumulated on the outer wall of the blade (7) is scraped, and the bottom of the pump body (2) is provided with a discharging assembly for discharging the scraped dust outside the pump body (2); The limiting assembly comprises a protruding block (10), the protruding block (10) is arranged on the outer wall of the impeller (5), an arc-shaped groove (11) matched with the protruding block (10) is arranged on the inner side wall of the impeller sleeve (6), the length of the arc-shaped groove (11) is the same as the length of the protruding block (10), and the curvature of the arc-shaped groove (11) is the same as the curvature between adjacent two blades (7); the driving assembly comprises a connecting disc (12), the impeller sleeve (6) is rotatably arranged on the outer wall of the connecting disc (12), an electric telescopic rod (13) is arranged in the cavity (4), the telescopic end of the electric telescopic rod (13) is fixedly connected with the connecting disc (12), one end of the electric telescopic rod (13) is fixedly connected with the inside of the cavity (4) through a connecting plate two (32), and a dust detection sensor (33) is arranged on the connecting plate two (32); a ratchet wheel (22) is arranged on the outer wall of one end of the connecting disc (12) connected with the impeller sleeve (6), and a ratchet pawl (26) matched with the ratchet wheel (22) is arranged on the connecting disc (12), so as to control the one-way rotation of the impeller sleeve (6).

2. The mobile vacuum pump trolley with self-cleaning structure according to claim 1, characterized in that: The discharging assembly comprises a pullable dust collecting box (23), a dust discharging groove (15) is formed above the dust collecting box (23) at the bottom of the pump body (2), connecting plates one (16) are arranged at both ends of the dust discharging groove (15) at the bottom of the pump body (2), a connecting shaft (24) is rotatably arranged between the two connecting plates one (16), a plurality of dust collecting plates (25) are equally arranged on the outer wall of the connecting shaft (24), and the maximum distance between adjacent two dust collecting plates (25) is greater than the width of the dust discharging groove (15).

3. The mobile vacuum pump trolley with self-cleaning structure according to claim 2, characterized in that: The ash collecting box (23) extends to one end outside the moving trolley (1), the side wall of the moving trolley (1) is provided with a first slot (17) matched with the ash collecting box (23), and the ash collecting box (23) can be pulled out from the first slot (17).

4. The mobile vacuum pump trolley with self-cleaning structure according to claim 3, characterized in that: The end of the ash collecting box (23) extending to the outside of the moving trolley (1) is provided with a pull handle (18), and the pull handle (18) is connected with the moving trolley (1) through a fastening screw (19).

5. The mobile vacuum pump trolley with self-cleaning structure according to claim 2, characterized in that: One end of the connecting shaft (24) extends to the outside of the moving trolley (1) through the ash collecting box (23), and a polygonal groove (20) is formed at the end of the connecting shaft (24) for controlling the rotation of the connecting shaft (24).

6. The mobile vacuum pump trolley with self-cleaning structure according to claim 2, characterized in that: The height of the ash collecting plate (25) is less than the distance between the connecting shaft (24) and the outer wall of the pump body (2), the outer wall of the ash collecting plate (25) is wrapped with a rubber layer (21), the height of the ash collecting plate (25) plus the thickness of the rubber layer (21) is greater than the distance between the connecting shaft (24) and the outer wall of the pump body (2), and the rubber layer (21) of the outer wall of the ash collecting plate (25) on the two sides of the ash discharging slot (15) is attached to the outer wall of the pump body (2), so as to seal the ash collecting plate (25) and the pump body (2).

7. The mobile vacuum pump trolley with self-cleaning structure according to claim 1, characterized in that: The filter assembly comprises a filter pipe (34) and a filter core (35), the filter core (35) is embedded in the filter pipe (34), and one end of the filter pipe (34) is penetrated with the connecting pipe (3).

8. The mobile vacuum pump trolley with self-cleaning structure according to claim 1, characterized in that: The moving trolley (1) comprises a trolley plate (36) and a trolley frame (37), the trolley frame (37) is located on the top of the trolley plate (36), the pump body (2) is located in the trolley frame (37), a plurality of universal wheels are arranged on the bottom of the trolley plate (36), and a push handle is arranged on one side of the top of the trolley plate (36).

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