Vacuum pump front dust removal device

Abstract

The utility model discloses a front dust removal device of a vacuum pump, which belongs to the field of dust removal and comprises a vacuum pump and a dust removal device, a vacuum one-way valve is arranged on one side of an air inlet of the vacuum pump, and the dust removal device comprises a dust removal shell and a plurality of layers of filter screens positioned in the dust removal shell. The vacuum one-way valve is connected with an air outlet of the dust removal shell through a vacuum pipeline, and the dust removal shell is a single-opening shell. Compared with the prior art, the dust removal device has the advantages that the single-opening dust removal shell is sealed by adopting a buckle structure, so that the multiple layers of filter screens in the dust removal shell can be freely detached, and the filter screens can be automatically popped out through springs of the automatic pop-up device after the shell covers of the filter screens are opened, so that the filter screens can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the field of dust removal, in particular to a vacuum pump pre-dust removal device. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. When evacuating a container, the vacuum pump is often damaged by the dust inside the container, which greatly shortens the service life of the vacuum pump. In order to avoid damage to the vacuum pump due to dust, people will install a vacuum pump pre-dust removal device between the container and the vacuum pump.

[0003] The dust removal device is installed between the vacuum pump and the container to be pumped, a vacuum check valve is installed at the air inlet of the vacuum pump, and the air outlet of the dust removal device and the air inlet of the vacuum check valve are connected and fixed by a vacuum pipeline.

[0004] This type of dust removal device usually installs several layers of filters inside the dust removal shell to filter the inhaled air. However, since the dust removal shell is usually an integrated structure, it is extremely difficult to replace the filters. When cleaning, it is usually done by opening the side door and aligning the water pipe nozzle for flushing. Since the filter is a multi-layer structure, a large amount of dust will remain on the bottom filter when it is flushed, thereby affecting the subsequent use efficiency of the filter. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the filter screen of the existing vacuum pump pre-dust removal device is difficult to clean.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a vacuum pump pre-dust removal device comprises a vacuum pump and a dust removal device, a vacuum one-way valve is arranged on one side of the vacuum pump air inlet, the dust removal device comprises a dust removal shell and several layers of filter screens located inside the dust removal shell, the vacuum one-way valve is connected to the air outlet of the dust removal shell through a vacuum pipe, the dust removal shell is a single open shell, an automatic pop-up device is arranged inside the dust removal shell, a storage slot for storing the automatic pop-up device is arranged inside the cavity of the dust removal shell, the filter screen is a detachable filter screen, the automatic pop-up device comprises several springs located on the bottom surface of the storage slot and a support plate for supporting the filter screen, a sealing frame is arranged around the filter screen, the sealing frame passes through the inner wall of the storage slot, the open end of the dust removal shell is provided with a corresponding shell cover, a dustproof plate is arranged on one side of the air inlet of the dust removal shell, and the dustproof plate is connected to the air inlet of the dust removal shell through the dustproof plate cover.

[0007] As an improvement, the dust removal shell is sealed and connected to the open end of the dust removal shell via a compression-type sealing frame, the compression-type sealing frame passes through the shell cover, and the dust removal shell is fixedly connected to the shell cover via a snap-fit ​​structure.

[0008] As an improvement, the compression type sealing frame is connected to the compression type sealing frame groove inside the shell cover by means of sealant.

[0009] As an improvement, the dustproof plate passes through a dustproof plate cover, and the dustproof plate cover is connected to the air inlet of the dust removal shell through a thread.

[0010] As an improvement, the inner wall of the storage tank and the outer wall of the filter screen are both connected to the sealing frame through body contact.

[0011] As an improvement, the air outlet of the dust removal shell and the vacuum one-way valve are both connected through the open ports at both ends of the body contacting the vacuum pipeline.

[0012] The advantages of the utility model compared with the prior art are: the device adopts a snap-fit ​​structure to close the single-open dust removal shell, so that the multi-layer filter screen inside the dust removal shell can be freely disassembled, and the spring of the automatic pop-up device makes the filter screen automatically pop out after the shell cover is opened, so as to facilitate the removal of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a general structural diagram of a vacuum pump front dust removal device.

[0014] Figure 2 The utility model is a cross-sectional view of a dust removal device of a vacuum pump front dust removal device.

[0015] Figure 3 It is an exploded view of a dust removal device of a vacuum pump front dust removal device of the utility model.

[0016] Figure 4 The utility model discloses a dust removal shell structure diagram of a vacuum pump front dust removal device.

[0017] Figure 5 The utility model is a shell cover structure diagram of a vacuum pump front dust removal device.

[0018] As shown in the figure: 1. Vacuum pump; 2. Dust removal device; 21. Dust removal shell; 211. Shell cover; 212. Compression sealing frame; 22. Filter; 23. Automatic pop-up device; 231. Spring; 232. Support plate; 24. Storage slot; 25. Sealing frame; 26. Dustproof plate; 261. Dustproof plate cover; 3. Vacuum one-way valve. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] As the instruction manual Figure 1As shown, it includes a vacuum pump 1 and a dust removal device 2, a vacuum one-way valve 3 is provided on one side of the air inlet of the vacuum pump 1, the dust removal device 2 includes a dust removal shell 21 and several layers of filter screens 22 located inside the dust removal shell 21, the vacuum one-way valve 3 is connected to the air outlet of the dust removal shell 21 through a vacuum pipe, the air outlet of the dust removal shell 21 and the vacuum one-way valve 3 are both connected through the open ends of the vacuum pipe that contact the main body, and the vacuum one-way valve 3 can effectively prevent the air inlet of the vacuum pump 1 from being dust-proofed after disassembly.

[0021] As the instruction manual Figure 2 , 3 As shown in Figures 4 and 5, the dust removal shell 21 is a single open shell, an automatic pop-up device 23 is provided inside the dust removal shell 21, a storage slot 24 for storing the automatic pop-up device 23 is provided inside the cavity of the dust removal shell 21, the filter 22 is a detachable filter, the automatic pop-up device 23 includes a plurality of springs 231 located at the bottom of the storage slot 24 and a support plate 232 for supporting the filter 22, a sealing frame 25 is provided around the filter 22, the sealing frame 25 passes through the inner wall of the storage slot 24, the inner wall of the storage slot 24 and the outer wall of the filter 22 are connected with the sealing frame 25 through body contact, the sealing frame 25 is popped out of the storage slot 24 by the spring 231, so that the operator can more conveniently take out the filter 22 when cleaning.

[0022] The open end of the dust removal shell 21 is provided with a corresponding shell cover 211, and the dust removal shell 21 is sealed with the open end of the dust removal shell 21 through a compression sealing frame 212. The compression sealing frame 212 passes through the shell cover 211, and the dust removal shell 21 is fixedly connected with the shell cover 211 through a snap-fit ​​structure. The compression sealing frame 212 is connected to the compression sealing frame groove inside the shell cover 211 through sealant. After the shell cover 211 is closed by the snap-fit ​​structure, the compression sealing frame 212 located between the shell cover 211 and the opening of the dust removal shell 21 receives pressure from the two to seal the dust removal shell 21.

[0023] A dustproof plate 26 is provided on one side of the air inlet of the dust removing shell 21, and the dustproof plate 26 is connected to the air inlet of the dust removing shell 21 through a dustproof plate cover 261. The dustproof plate 26 passes through the dustproof plate cover 261, and the dustproof plate cover 261 is connected to the air inlet of the dust removing shell 21 through a thread. The dustproof plate 26 is fixed to the air inlet of the dust removing shell 21 through the dustproof plate cover 261, thereby preventing large impurities from entering the dust removing device 2 when the vacuum pump 1 is evacuated.

[0024] In the specific implementation of the utility model, the vacuum check valve 3 is sleeved on the air inlet of the vacuum pump 1, the vacuum pipe is sleeved on one end of the vacuum check valve 3 and the air outlet of the dust removal device 2, the spring 231 is placed on the bottom surface of the storage groove 24 inside the dust removal shell 21, the support plate 232 is placed on the spring 231 (the thickness of the automatic pop-up device 23 is less than the depth of the bottom surface of the storage groove 24), the sealing frame 25 is sleeved on the outer wall of each filter screen 22, and the sealing frame 25 is removed from the dust removal shell 21 according to the size of the filter hole of the filter screen 22. The air inlets of the shell 21 are arranged in sequence and slide into the storage slot 24; the outer wall of the compression sealing frame 212 is coated with sealant, and the compression sealing frame 212 is snapped into the slot inside the shell cover 211; the dustproof plate 26 is snapped into the interior of the dustproof plate cover 261, and it is screwed onto the thread of the air inlet of the dust removal shell 21 through the threaded holes on the side of the dustproof plate cover 261; the compression sealing frame 212 is placed into the opening of the dust removal shell 21, the shell cover 211 is pressed down, and it is fixed to the open end of the dust removal shell 21 with a snap to seal it.

[0025] When in use, the vacuum pump 1 is turned on, and the air is vacuumed under the action of the suction force of the air inlet of the vacuum pump 1. The debris in the air is isolated by the dustproof plate 26 to prevent the debris from entering the dust removal device 2, thereby preventing the air inlet of the dust removal shell 21 from being blocked. The dust in the air is then filtered through the multi-layer filter screen 22 inside the dust removal shell 21 to ensure the purity of the internal structure of the vacuum pump 1. When cleaning the dust removal device 2 again, it is only necessary to open the buckle and remove the shell cover 211. The sealing frame 25 can pop out the dust removal shell 21 under the action of the automatic pop-up device 23, which is convenient for the cleaning personnel to take and put, so that the cleaning personnel can clean each layer of the filter screen 22 separately, thereby avoiding incomplete cleaning of the filter screen 22, thereby affecting the service life of the dust removal device 2.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A vacuum pump pre-dust removal device, comprising a vacuum pump (1) and a dust removal device (2), wherein a vacuum check valve (3) is provided on one side of an air inlet of the vacuum pump (1), the dust removal device (2) comprises a dust removal shell (21) and a plurality of filter screens (22) located inside the dust removal shell (21), the vacuum check valve (3) is connected to an air outlet of the dust removal shell (21) through a vacuum pipe, and is characterized in that: The dust removal shell (21) is a single open shell, an automatic pop-up device (23) is provided inside the dust removal shell (21), a storage slot (24) for storing the automatic pop-up device (23) is provided inside the mold cavity of the dust removal shell (21), the filter screen (22) is a detachable filter screen, the automatic pop-up device (23) comprises a plurality of springs (231) located at the bottom surface of the storage slot (24) and a support plate (232) for supporting the filter screen (22), a sealing frame (25) is provided around the filter screen (22), the sealing frame (25) passes through the inner wall of the storage slot (24), a corresponding shell cover (211) is provided at the open end of the dust removal shell (21), a dustproof plate (26) is provided on one side of the air inlet of the dust removal shell (21), and the dustproof plate (26) is connected to the air inlet of the dust removal shell (21) through a dustproof plate cover (261).

2. A vacuum pump pre-dust removal device according to claim 1, characterized in that: The dust removal shell (21) is sealedly connected to the open end of the dust removal shell (21) via a compression-type sealing frame (212); the compression-type sealing frame (212) passes through the shell cover (211); and the dust removal shell (21) is fixedly connected to the shell cover (211) via a snap-fit ​​structure.

3. A vacuum pump pre-dust removal device according to claim 2, characterized in that: The compression type sealing frame (212) is connected to the compression type sealing frame groove inside the shell cover (211) via a sealant.

4. A vacuum pump pre-dust removal device according to claim 1, characterized in that: The dustproof plate (26) passes through the dustproof plate cover (261), and the dustproof plate cover (261) is connected to the air inlet of the dust removal shell (21) through threads.

5. A vacuum pump pre-dust removal device according to claim 1, characterized in that: The inner wall of the storage tank (24) and the outer wall of the filter screen (22) are both connected to the sealing frame (25) through body contact.

6. A vacuum pump pre-dust removal device according to claim 1, characterized in that: The air outlet of the dust removal shell (21) and the vacuum one-way valve (3) are both connected through the openings at both ends of the body contacting the vacuum pipeline.

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