Turbine vacuum pump with dust filtering structure

Abstract

The utility model relates to the technical field of turbine vacuum pumps, in particular to a turbine vacuum pump with a dust filtering structure, which comprises a vacuum pump main body, an air inlet component is fixed at the top of the vacuum pump main body, an exhaust pipe is arranged on one side of the air inlet component, and a filtering component is mounted in the air inlet component. A cleaning assembly is arranged outside the air inlet assembly; the filtering assembly comprises a metal sintering net movably connected to the interior of the air inlet assembly. The cleaning assembly comprises a cleaning brush arranged at the top of the metal sintering net, the interior of the cleaning brush is connected with a transmission lead screw through a screw sleeve, the power output end of a transmission motor is fixed to the tail end of the transmission lead screw, and the air inlet assembly comprises an air inlet pipe fixed to the top of the vacuum pump body. Large-particle dust can be intercepted through the arranged metal sintering net, the dust is filtered in a classified mode, and meanwhile the metal sintering net is cleaned in cooperation with the cleaning assembly.

Description

Technical Field

[0001] This utility model relates to the field of turbine vacuum pump technology, and in particular to a turbine vacuum pump with a dust filtration structure. Background Technology

[0002] A turbine vacuum pump is a vacuum-generating device that works on the principle of turbine mechanics. It compresses and discharges the gas by using a high-speed rotating impeller or rotor to do work on the gas, thereby creating a vacuum at the pump's suction end.

[0003] When using a turbine vacuum pump, if the process gas contains dust, it needs to be filtered out through a dust filter structure to prevent dust from entering the pump body and reducing the service life of the turbine vacuum pump.

[0004] Currently, dust filtration systems use materials such as HEPA and PTFE filter membranes to intercept dust, ensuring the effectiveness of intercepting fine dust. If dust is not filtered in stages, the dust will come into direct contact with the HEPA and PTFE filter membranes, and large dust particles will easily accumulate on the filter membrane, leading to increased airflow resistance and affecting the normal operation of the turbine vacuum pump. Summary of the Invention

[0005] The purpose of this invention is to provide a turbine vacuum pump with a dust filtration structure, which can solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a turbine vacuum pump with a dust filtration structure, comprising a vacuum pump body, an air intake assembly fixed to the top of the vacuum pump body, an exhaust pipe provided on one side of the air intake assembly, a filter assembly installed inside the air intake assembly, and a cleaning assembly provided outside the air intake assembly.

[0007] The filter assembly includes a sintered metal mesh that is movably connected inside the intake assembly;

[0008] The cleaning assembly includes a cleaning brush disposed on top of a metal sintered mesh, and the inside of the cleaning brush is connected to a transmission screw through a threaded sleeve. The power output end of a transmission motor is fixed to the end of the transmission screw.

[0009] Preferably, the air intake assembly includes an air intake pipe fixed to the top of the vacuum pump body, and the inner side of the air intake pipe has a mounting slot.

[0010] Preferably, the filter assembly further includes a filter housing movably connected inside the air intake pipe, and a support frame is fixed around the filter housing and the sintered metal mesh, and a mounting block is provided at the connection between the support frame and the mounting slot.

[0011] Preferably, the surface of the air intake pipe is threaded with a fixing screw, and the fixing screw passes through the interior of the mounting block.

[0012] Preferably, a filter core is fixed inside the filter shell, and a central air inlet is provided inside the filter core, with side air inlets arranged around the central air inlet.

[0013] Preferably, a filter membrane is provided between the central air inlet and the side air inlet, and a sealing ring is fitted on the surface of the filter shell, with the sealing ring positioned between the filter shell and the air inlet pipe.

[0014] Preferably, the cleaning assembly further includes a cleaning bracket installed outside the air intake pipe, and a connecting screw is threaded to one side of the cleaning bracket. The transmission screw is installed inside the cleaning bracket, and guide rods fixed inside the cleaning bracket are provided on the left and right sides of the transmission screw.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The sintered metal mesh can intercept large dust particles and filter them in stages. At the same time, the cleaning component can clean the sintered metal mesh.

[0017] 2. The filter shell and sintered metal mesh can be separated from each other by the mounting blocks and mounting slots on the support frame, making it easy to replace the filter shell and sintered metal mesh. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the air intake pipe of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the filter shell of this utility model;

[0022] Figure 4 This is a half-sectional structural diagram of the filter core of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Vacuum pump body; 2. Exhaust pipe; 3. Inlet assembly; 301. Inlet pipe; 302. Mounting slot; 303. Fixing screw; 4. Cleaning assembly; 401. Cleaning brush; 402. Cleaning bracket; 403. Drive motor; 404. Drive screw; 405. Guide rod; 406. Connecting screw; 5. Filter assembly; 501. Sintered metal mesh; 502. Filter housing; 503. Sealing ring; 504. Filter inner core; 505. Mounting block; 506. Support frame; 507. Central air inlet; 508. Side air inlet; 509. Filter membrane. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A turbine vacuum pump with a dust filtration structure includes a vacuum pump body 1, an air intake assembly 3 fixed on the top of the vacuum pump body 1, an exhaust pipe 2 provided on one side of the air intake assembly 3, a filter assembly 5 installed inside the air intake assembly 3, and a cleaning assembly 4 provided on the outside of the air intake assembly 3.

[0028] The filter assembly 5 includes a sintered metal mesh 501 that is movably connected inside the intake assembly 3;

[0029] The cleaning assembly 4 includes a cleaning brush 401 disposed on top of the metal sintered mesh 501, and the inside of the cleaning brush 401 is connected to a transmission screw 404 through a threaded sleeve. The power output end of the transmission motor 403 is fixed at the end of the transmission screw 404.

[0030] The cleaning assembly 4 also includes a cleaning bracket 402 installed outside the air intake pipe 301, and a connecting screw 406 is threaded on one side of the cleaning bracket 402. A transmission screw 404 is installed inside the cleaning bracket 402, and guide rods 405 fixed inside the cleaning bracket 402 are provided on the left and right sides of the transmission screw 404.

[0031] By adopting the above technical solution, when the gas enters the vacuum pump body 1 through the air intake component 3, it is first filtered by the metal sintered mesh 501. The metal sintered mesh 501 can intercept large dust particles, thereby performing graded filtration of the dust and preventing large dust particles from re-entering the filter component 5. At the same time, the drive motor 403 is started. The power output end of the drive motor 403 can drive the drive screw 404 to rotate. The drive screw 404 can drive the cleaning brush 401 to move on the top of the metal sintered mesh 501 through the screw sleeve, cleaning the large dust particles on the surface of the metal sintered mesh 501. The metal sintered mesh 501 can intercept large dust particles and perform graded filtration of the dust. At the same time, it works with the cleaning component 4 to clean the metal sintered mesh 501.

[0032] Specifically, such as Figure 4 As shown, the air intake assembly 3 includes an air intake pipe 301 fixed to the top of the vacuum pump body 1. An installation slot 302 is provided on the inner side of the air intake pipe 301. The filter assembly 5 also includes a filter shell 502 movably connected inside the air intake pipe 301. A support frame 506 is fixed around the filter shell 502 and the metal sintered mesh 501. An installation block 505 is provided at the connection between the support frame 506 and the installation slot 302. A fixing screw 303 is threadedly connected to the surface of the air intake pipe 301, and the fixing screw 303 passes through the interior of the installation block 505.

[0033] The filter housing 502 has a filter core 504 fixed inside, and the filter core 504 has a central air inlet 507 inside. The central air inlet 507 is surrounded by side air inlets 508. A filter membrane 509 is disposed between the central air inlet 507 and the side air inlets 508. A sealing ring 503 is fitted on the surface of the filter housing 502, and the sealing ring 503 is disposed between the filter housing 502 and the air inlet pipe 301.

[0034] By adopting the above technical solution, after intercepting large dust particles, the gas enters the filter core 504 inside the filter housing 502. The gas enters the filter core 504 through the central air inlet 507 and the side air inlet 508. After being filtered by the filter membrane 509, it can enter the vacuum pump body 1, thus avoiding dust affecting the use of the vacuum pump body 1. At the same time, the filter housing 502 and the metal sintered mesh 501 can be separated from each other by the mounting clip 505 on the support frame 506 and the mounting slot 302. When disassembling the filter housing 502 and the metal sintered mesh 501, the cleaning bracket 402 is first disassembled by turning the connecting screw 406. The entire cleaning assembly 4 is then disassembled. The bottom of the cleaning brush 401 has soft bristles and comes into contact with the surface of the metal sintered mesh 501. The metal sintered mesh 501 is cleaned by moving the cleaning brush 401.

[0035] Working principle: When gas enters the vacuum pump body 1 through the air intake assembly 3, it is first filtered by the sintered metal mesh 501. The sintered metal mesh 501 can intercept large dust particles, thereby performing graded filtration of dust and preventing large dust particles from re-entering the filter assembly 5. At the same time, the drive motor 403 is started. The power output end of the drive motor 403 can drive the drive screw 404 to rotate. The drive screw 404 can drive the cleaning brush 401 to move on the top of the sintered metal mesh 501 through the screw sleeve to clean the large dust particles on the surface of the sintered metal mesh 501. After the large dust particles are intercepted, the gas enters the filter core 504 in the filter shell 502. The gas enters the filter core 504 through the central air intake hole 507 and the side air intake hole 508. After being filtered by the filter membrane 509, it can enter the vacuum pump body 1 to prevent dust from affecting the use of the vacuum pump body 1. The filter membrane 509 can be a HEPA or PTFE membrane to filter and intercept fine dust particles.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A turbine vacuum pump with a dust filtration structure, comprising a vacuum pump body (1), characterized in that: The top of the vacuum pump body (1) is fixed with an air intake assembly (3), and an exhaust pipe (2) is provided on one side of the air intake assembly (3). A filter assembly (5) is installed inside the air intake assembly (3), and a cleaning assembly (4) is provided outside the air intake assembly (3). The filter assembly (5) includes a sintered metal mesh (501) that is movably connected inside the intake assembly (3). The cleaning assembly (4) includes a cleaning brush (401) disposed on top of the metal sintered mesh (501), and the inside of the cleaning brush (401) is connected to a transmission screw (404) through a threaded sleeve. The power output end of the transmission motor (403) is fixed at the end of the transmission screw (404).

2. A turbine vacuum pump with a dust filtration structure according to claim 1, characterized in that: The air intake assembly (3) includes an air intake pipe (301) fixed to the top of the vacuum pump body (1), and an installation slot (302) is provided on the inner side of the air intake pipe (301).

3. A turbine vacuum pump with a dust filtration structure according to claim 2, characterized in that: The filter assembly (5) also includes a filter housing (502) movably connected inside the air intake pipe (301). A support frame (506) is fixed around the filter housing (502) and the metal sintered mesh (501), and an installation block (505) is provided at the connection between the support frame (506) and the mounting slot (302).

4. A turbine vacuum pump with a dust filtration structure according to claim 3, characterized in that: The surface of the air intake pipe (301) is threaded with a fixing screw (303), and the fixing screw (303) passes through the interior of the mounting block (505).

5. A turbine vacuum pump with a dust filtration structure according to claim 4, characterized in that: The filter housing (502) has a filter core (504) fixed inside, and the filter core (504) has a central air inlet (507) inside, and side air inlets (508) are provided around the central air inlet (507).

6. A turbine vacuum pump with a dust filtration structure according to claim 5, characterized in that: A filter membrane (509) is provided between the central air inlet (507) and the side air inlet (508). A sealing ring (503) is fitted on the surface of the filter shell (502), and the sealing ring (503) is located between the filter shell (502) and the air inlet pipe (301).

7. A turbine vacuum pump with a dust filtration structure according to claim 6, characterized in that: The cleaning assembly (4) also includes a cleaning bracket (402) installed outside the air intake pipe (301), and a connecting screw (406) is threaded on one side of the cleaning bracket (402). The transmission screw (404) is installed inside the cleaning bracket (402), and guide rods (405) fixed inside the cleaning bracket (402) are provided on the left and right sides of the transmission screw (404).

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