Corrosion-resistant dry vacuum pump

Abstract

The utility model discloses a corrosion-resistant dry vacuum pump which comprises a shell, a vacuumizing mechanism is arranged in the shell, an air outlet pipe and an air inlet pipe are fixedly connected to the two ends of the top of the shell respectively, a first fixing frame is movably connected to one end of the air inlet pipe, and a first limiting block is fixedly connected to one end of the first fixing frame. A filter plate is movably connected into the first fixing frame, a connecting rod is fixedly connected to one side of the filter plate, one end of the connecting rod penetrates through the center of the first limiting block and is fixedly connected with a second limiting block, and when the filter plate is blocked, the filter plate can be taken out, the second limiting block is pressed, so that the filter plate slides out for cleaning, and the filter plate is reset under the action of a spring after cleaning; the problems that most of existing corrosion-resistant dry vacuum pumps do not have the filtering function, dust, impurities and the like in air are easily sucked into a pump cavity in the vacuumizing process and are inconvenient to clean, the vacuum pump can be jammed in severe cases, and the service life of the vacuum pump is shortened to a certain extent are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, and particularly relates to a corrosion-resistant dry vacuum pump. Background Technique

[0002] A dry vacuum pump is a mechanical vacuum pump that can start pumping air from atmospheric pressure, can directly discharge the pumped gas into the atmosphere, has no oil or other working media in the pump cavity, and the ultimate pressure of the pump is of the same order of magnitude as or close to that of an oil-sealed vacuum pump.

[0003] Most of the existing corrosion-resistant dry vacuum pumps do not have a filtering function. During the vacuum pumping process, dust, sundries, etc. in the air are easily sucked into the pump cavity, which is inconvenient to clean. In severe cases, it will even cause the vacuum pump to get stuck, reducing the service life of the vacuum pump to a certain extent. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in the existing corrosion-resistant dry vacuum pumps, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a corrosion-resistant dry vacuum pump. During use, the air outlet pipe and the air inlet pipe are connected to an external air pipe through external threads for vacuum pumping operations. Under the action of a filter plate, the air is filtered. When the filter plate is blocked, the filter plate can be taken out, and the second limit block is pressed to make the filter plate slide out for cleaning. After cleaning, the filter plate is reset under the action of a spring, solving the problem that most of the existing corrosion-resistant dry vacuum pumps do not have a filtering function. During the vacuum pumping process, dust, sundries, etc. in the air are easily sucked into the pump cavity, which is inconvenient to clean. In severe cases, it will even cause the vacuum pump to get stuck, reducing the service life of the vacuum pump to a certain extent.

[0007] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0008] A corrosion-resistant dry vacuum pump, comprising:

[0009] A housing, a vacuum pumping mechanism is arranged inside the housing. At both ends of the top of the housing, an air outlet pipe and an air inlet pipe are respectively fixedly connected. One end of the air inlet pipe is movably connected to a first fixing frame. One end of the first fixing frame is fixedly connected to a first limiting block. A filter plate is movably connected inside the first fixing frame. One side of the filter plate is fixedly connected to a connecting rod. One end of the connecting rod penetrates through the center of the first limiting block and is fixedly connected to a second limiting block. A spring is arranged between one side of the second limiting block and one side of the first limiting block. The filter plate is provided with a plurality of first through holes.

[0010] As a preferred scheme of a corrosion-resistant dry vacuum pump described in the present invention, wherein, a first boss is arranged at one end of the first fixing frame. A plurality of third limiting blocks are arranged on one side of the first boss. A groove is arranged at one end of the air inlet pipe. A plurality of limiting grooves are arranged on one side of the groove. The third limiting blocks are located in the limiting grooves, and the first boss is located in the groove.

[0011] As a preferred scheme of a corrosion-resistant dry vacuum pump described in the present invention, wherein, external threads are arranged at one ends of the air outlet pipe and the air inlet pipe, and fourth limiting blocks are arranged at one ends of the air outlet pipe and the air inlet pipe.

[0012] As a preferred scheme of a corrosion-resistant dry vacuum pump described in the present invention, wherein, the vacuum pumping mechanism includes a second fixing frame. A driving motor is fixedly connected to one side of the second fixing frame. The power output end of the driving motor penetrates through the second fixing frame and is fixedly connected to a first gear. A second gear is movably connected to one side of the housing. The first gear meshes with the second gear. One ends of the first gear and the second gear penetrate through one side of the housing and are respectively fixedly connected to a first threaded rotor and a second threaded rotor. The first threaded rotor meshes with the second threaded rotor. The first threaded rotor and the second threaded rotor are both coated with corrosion-resistant paint.

[0013] As a preferred scheme of a corrosion-resistant dry vacuum pump described in the present invention, wherein, a second boss is arranged at the top of the housing. A blower is fixedly connected to one side of the second boss. The output end of the blower is fixedly connected to an air duct. The air duct is provided with a plurality of air outlet openings, and the plurality of air outlet openings are respectively located on both sides of the housing.

[0014] As a preferred scheme of a corrosion-resistant dry vacuum pump described in the present invention, wherein, third bosses are arranged on both sides of the bottom of the housing. A plurality of second through holes are arranged on the top of the third bosses.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The air outlet pipe and the air inlet pipe are connected to the external air pipe through external threads for vacuum pumping operation. The air is filtered under the action of the filter plate. When the filter plate is blocked, the filter plate can be taken out, and the second limit block is pressed to make the filter plate slide out for cleaning. After the cleaning is completed, the filter plate is reset under the action of the spring, solving the problem that most of the existing corrosion-resistant dry vacuum pumps do not have a filtering function. During the vacuum pumping process, dust, sundries, etc. in the air are easily sucked into the pump cavity, which is inconvenient to clean. In severe cases, it will even cause the vacuum pump to be stuck, reducing the service life of the vacuum pump to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of a corrosion-resistant dry vacuum pump of the present utility model.

[0018] Figure 2 It is a side view of the overall structure of a corrosion-resistant dry vacuum pump of the present utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the air inlet pipe of a corrosion-resistant dry vacuum pump of the present utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the first fixing frame of a corrosion-resistant dry vacuum pump of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the drawings.

[0022] Please refer to Figures 1-4 , the present utility model provides a corrosion-resistant dry vacuum pump, including a housing 1. A vacuum pumping mechanism is arranged inside the housing 1. Two ends of the top of the housing 1 are respectively fixedly connected with an air outlet pipe 6 and an air inlet pipe 7. One end of the air inlet pipe 7 is movably connected with a first fixing frame 11. One end of the first fixing frame 11 is fixedly connected with a first limit block 21. A filter plate 12 is movably connected inside the first fixing frame 11. One side of the filter plate 12 is fixedly connected with a connecting rod 22. One end of the connecting rod 22 penetrates through the center of the first limit block 21 and is fixedly connected with a second limit block 23. A spring 24 is arranged between one side of the second limit block 23 and one side of the first limit block 21. The filter plate 12 is provided with a plurality of first through holes 25.

[0023] One end of the first fixing frame 11 is provided with a first boss 19. One side of the first boss 19 is provided with a plurality of third limiting blocks 20. One end of the air inlet pipe 7 is provided with a groove 17. One side of the groove 17 is provided with a plurality of limiting grooves 18. The third limiting blocks 20 are located in the limiting grooves 18, and the first boss 19 is located in the groove 17.

[0024] One end of the air outlet pipe 6 and the air inlet pipe 7 are both provided with external threads 16, and one end of the air outlet pipe 6 and the air inlet pipe 7 are both provided with fourth limiting blocks 15.

[0025] Specifically, the air outlet pipe 6 and the air inlet pipe 7 are connected to an external air pipe through the external threads 16 for vacuum pumping operation. The air is filtered under the action of the filter plate 12. When the filter plate 12 is blocked, the filter plate 12 can be taken out, and the second limiting block 23 is pressed to make the filter plate 12 slide out for cleaning. After cleaning, the filter plate 12 is reset under the action of the spring 24, solving the problem that most of the existing corrosion-resistant dry vacuum pumps do not have a filtering function, and dust, sundries, etc. in the air are easily sucked into the pump cavity during the vacuum pumping process, which is inconvenient to clean and may even cause the vacuum pump to get stuck severely, reducing the service life of the vacuum pump to a certain extent.

[0026] Please refer to Figure 1 , the vacuum pumping mechanism includes a second fixing frame 2. One side of the second fixing frame 2 is fixedly connected with a driving motor 3. The power output end of the driving motor 3 penetrates through the second fixing frame 2 and is fixedly connected with a first gear 4. One side of the outer shell 1 is movably connected with a second gear 5. The first gear 4 meshes with the second gear 5. One end of the first gear 4 and the second gear 5 both penetrate through one side of the outer shell 1 and are respectively fixedly connected with a first threaded rotor and a second threaded rotor. The first threaded rotor meshes with the second threaded rotor. The first threaded rotor and the second threaded rotor are both coated with corrosion-resistant paint.

[0027] Specifically, under the action of the driving motor 3, the first threaded rotor and the second threaded rotor are driven to rotate for vacuum pumping work. The corrosion-resistant paint prevents the water vapor in the air from corroding the first threaded rotor and the second threaded rotor to a certain extent.

[0028] Please refer to Figure 1 , a second boss 8 is provided on the top of the outer shell 1. One side of the second boss 8 is fixedly connected with a blower 9. The output end of the blower 9 is fixedly connected with an air duct 10. The air duct 10 is provided with a plurality of air outlets, and the plurality of air outlets are respectively located on both sides of the outer shell 1. The outer shell 1 is cooled under the action of the blower 9.

[0029] Further, please refer to Figure 2 , third bosses 13 are provided on both sides of the bottom of the outer shell 1. A plurality of second through holes 14 are provided on the top of the third bosses 13 to facilitate the fixing of the vacuum pump.

[0030] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way, and the reason for not exhaustively describing the situations of these combinations in this specification is only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A corrosion-resistant dry vacuum pump, characterized in that: The invention comprises a shell (1), wherein a vacuum pumping mechanism is arranged inside the shell (1), wherein two ends of the top of the shell (1) are respectively fixedly connected to an air outlet pipe (6) and an air inlet pipe (7), wherein one end of the air inlet pipe (7) is movably connected to a first fixing frame (11), wherein one end of the first fixing frame (11) is fixedly connected to a first limit block (21), wherein a filter plate (12) is movably connected inside the first fixing frame (11), wherein one side of the filter plate (12) is fixedly connected to a connecting rod (22), wherein one end of the connecting rod (22) passes through the center of the first limit block (21) and is fixedly connected to a second limit block (23), wherein a spring (24) is arranged between one side of the second limit block (23) and one side of the first limit block (21), and wherein the filter plate (12) is provided with a plurality of first through holes (25).

2. A corrosion-resistant dry vacuum pump according to claim 1, characterized in that: A first boss (19) is provided at one end of the first fixing frame (11), a plurality of third limit blocks (20) are provided on one side of the first boss (19), a groove (17) is provided at one end of the air intake pipe (7), a plurality of limit grooves (18) are provided on one side of the groove (17), the third limit blocks (20) are located in the limit grooves (18), and the first boss (19) is located in the groove (17).

3. A corrosion-resistant dry vacuum pump according to claim 2, characterized in that: One end of the air outlet pipe (6) and the air inlet pipe (7) are both provided with an external thread (16), and one end of the air outlet pipe (6) and the air inlet pipe (7) are both provided with a fourth limit block (15).

4. A corrosion-resistant dry vacuum pump according to claim 3, characterized in that: The vacuum pumping mechanism comprises a second fixing frame (2), one side of the second fixing frame (2) is fixedly connected to a driving motor (3), a power output end of the driving motor (3) passes through the second fixing frame (2) and is fixedly connected to a first gear (4), one side of the housing (1) is movably connected to a second gear (5), the first gear (4) is meshed with the second gear (5), one end of the first gear (4) and the second gear (5) both pass through one side of the housing (1) and are respectively fixedly connected to a first threaded rotor and a second threaded rotor, the first threaded rotor is meshed with the second threaded rotor, and the first threaded rotor and the second threaded rotor are both coated with corrosion-resistant paint.

5. A corrosion-resistant dry vacuum pump according to claim 4, characterized in that: A second boss (8) is provided on the top of the housing (1); a fan (9) is fixedly connected to one side of the second boss (8); an output end of the fan (9) is fixedly connected to an air duct (10); the air duct (10) is provided with a plurality of air outlets, and the plurality of air outlets are respectively located on both sides of the housing (1).

6. A corrosion-resistant dry vacuum pump according to claim 5, characterized in that: A third boss (13) is provided on both sides of the bottom of the housing (1), and a plurality of second through holes (14) is provided on the top of the third boss (13).

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