Vacuum pipeline filtering device

Abstract

The utility model discloses a vacuum pipeline filtering device which comprises a vacuum pipeline, one end of the vacuum pipeline is fixedly connected with a flange, the other end of the vacuum pipeline is provided with a filtering pipeline, the filtering pipeline is U-shaped, the arc-shaped part of the filtering pipeline is provided with a sealing cover, and the end, connected with the vacuum pipeline, of the filtering pipeline is fixedly connected with a connecting pipe. An annular building block, a first sealing groove and an annular groove are arranged on the outer side of the connecting pipe, a sealing ring is sleeved with the first sealing groove, a filtering ring is arranged in the connecting pipe, clamping blocks are fixedly connected to the two sides of the filtering ring, clamping grooves are formed in the positions, located on the two sides of the clamping blocks, of the connecting pipe, and a groove is formed in the end, close to the filtering pipe, of the vacuum pipe. A limiting block is slidably connected into the groove, a spring is fixedly connected to the rear end of the limiting block, a second sealing groove is formed in the vacuum pipeline located on the outer side of the annular building block, a sealing gasket is arranged in the second sealing groove, and the limiting block is slidably connected with the annular groove. Through the structure, the problem that the filter screen is inconvenient to maintain, clean and replace daily is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pipelines, in particular to a vacuum pipeline filtering device. Background Technique

[0002] As a tool for transporting liquids, vacuum pipelines are used in many fields. They can be used to transport liquids and gases, but existing vacuum pipelines still have some disadvantages.

[0003] When applying for a patent, it was found through retrieval that the Chinese patent with the application number CN202323294265.0: A vacuum pipeline filtering device, including a high-vacuum pipeline interconnected with a vacuum unit, two groups of the high-vacuum pipelines are fixedly connected through the cooperation of flanges with a filtering pipeline, and a filtering device is arranged inside the filtering pipeline; the filtering device includes a fixing ring, a fixing bottom plate is fixedly connected to the rear end face of the fixing ring, a plurality of filtering plates are movably opened and closed inside the fixing ring, the lowermost filtering plate movably abuts against the fixing bottom plate, a fixing groove is opened on the front end face of the fixing ring, a fixing block is fixedly connected to the outer peripheral end face of the uppermost filtering plate, and the fixing block is movably inserted into the inside of the fixing groove. The filtering device of the utility model has a simple structure, is easy to install, has a good sealing effect, and is not prone to leakage during the use of the vacuum pipeline; when maintaining and cleaning the pipeline, the filtering pipeline needs to be disassembled, and at the same time, the filtering pipeline and the vacuum pipeline are fixed by bolts, which is not convenient for daily cleaning of the filter, and it is also inconvenient when the filter screen needs to be replaced after long-term use. Therefore, improvement is needed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a vacuum pipeline filtering device, which solves the problems of inconvenient daily maintenance, cleaning and replacement of the filter screen.

[0005] The utility model also provides a vacuum pipeline filtering device having the above, including: a vacuum pipeline, one end of the vacuum pipeline is fixedly connected with a flange, and a filtering pipeline is installed at the other end. The filtering pipeline is U-shaped, and a sealing cover is provided at the arc portion. One end of the filtering pipeline connected to the vacuum pipeline is fixedly connected with a connecting pipe. An annular block, a first sealing groove and an annular groove are provided on the outer side of the connecting pipe. A sealing ring is sleeved in the first sealing groove. A filtering ring is provided inside the connecting pipe. Clamping blocks are fixedly connected to both sides of the filtering ring. Card slots are provided in the connecting pipe on both sides of the clamping blocks. A groove is provided inside one end of the vacuum pipeline close to the filtering pipeline. A limiting block is slidably connected inside the groove. A spring is fixedly connected to the rear end of the limiting block, and the other end of the spring is fixedly connected to the groove. A second sealing groove is provided inside the vacuum pipeline outside the annular block. A sealing gasket is provided in the second sealing groove. The limiting block is slidably connected to the annular groove.

[0006] According to a vacuum pipeline filtering device described above, the diameter of the connecting pipe is the same as the inner diameter of the vacuum pipeline. The annular block is located on the left side of the first sealing groove, the annular groove is located on the right side of the first sealing groove, and inclined surfaces are provided in the annular block, the first sealing groove and the annular groove.

[0007] According to a vacuum pipeline filtering device described above, the inclined surfaces on both sides of the limiting block have the same inclination angle as the inclined surfaces in the annular block, the first sealing groove and the annular groove.

[0008] According to a vacuum pipeline filtering device described above, the clamping groove is L-shaped, and the clamping block is slidably connected to the clamping groove and is adapted to the clamping groove.

[0009] According to a vacuum pipeline filtering device described above, a filter screen is provided inside the filter ring. The filter screen has two layers, and filter paper is provided at the middle position.

[0010] According to a vacuum pipeline filtering device described above, a short connecting pipe is fixedly connected to the arc-shaped part of the filtering pipeline, and a sealing cover is threadedly connected to the outer end of the short connecting pipe.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the utility model, a connecting pipe is provided at the connection between the filtering pipeline and the vacuum pipeline. At the same time, an annular block, a first sealing groove and an annular groove are provided outside the connecting pipe. During installation, the filtering pipeline can be directly inserted into the vacuum pipeline. At this time, the annular block contacts the sealing gasket, the sealing ring contacts the inner wall of the vacuum pipeline, and the limiting block is located in the annular groove. Under the action of the sealing gasket and the sealing ring, the connection between the filtering pipeline and the vacuum pipeline is sealed. The operation is convenient, the sealing performance is good, and it is convenient for installation and disassembly.

[0013] 2. In the utility model, a sealing cover is provided at the arc-shaped part of the filtering pipeline. At the same time, a groove, a limiting block and a spring are provided inside the vacuum pipeline. Under the action of the spring, the limiting block can be located in the annular groove. At the same time, the inclined surfaces on both sides of the limiting block have the same inclination angle as the inclined surfaces in the annular block, the first sealing groove and the annular groove, which is convenient for the installation and disassembly of the filtering pipeline.

[0014] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the utility model. Description of the Drawings

[0015] The following further describes the utility model in conjunction with the drawings and embodiments;

[0016] Figure 1 It is a structural diagram of a vacuum pipeline filtering device of the utility model;

[0017] Figure 2 Structural diagram of the connecting pipe of a vacuum pipeline filtering device of the present utility model;

[0018] Figure 3 Structural diagram of the filter ring of a vacuum pipeline filtering device of the present utility model;

[0019] Figure 4 Cross-sectional view of the filter pipeline of a vacuum pipeline filtering device of the present utility model;

[0020] Figure 5 is Figure 4 Enlarged view of the structure at position A in

[0021] Legend description:

[0022] 1. Vacuum pipeline; 11. Flange; 2. Filter pipeline; 3. Connecting pipe; 31. Ring-shaped block; 311. Card slot; 32. First sealing groove; 321. Sealing ring; 33. Filter ring; 331. Clamping block; 34. Ring-shaped groove; 4. Groove; 5. Limiting block; 51. Spring; 6. Second sealing groove; 61. Sealing gasket; 7. Sealing cover. Specific implementation manners

[0023] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0024] Referring to Figures 1-5 , an embodiment of a vacuum pipeline filtering device of the present utility model includes a vacuum pipeline 1. One end of the vacuum pipeline 1 is fixedly connected with a flange 11, and the other end is provided with a filter pipeline 2. The flange 11 is provided with a through hole. The filter pipeline 2 is U-shaped, and a sealing cover 7 is provided at the arc portion. The arc portion of the filter pipeline 2 is fixedly connected with a short connecting pipe, and the outer end of the short connecting pipe is threadedly connected with the sealing cover 7. When cleaning the filter, the sealing cover 7 can be directly unscrewed, and the operation is convenient. One end of the filter pipeline 2 connected to the vacuum pipeline 1 is fixedly connected with a connecting pipe 3. The diameter of the connecting pipe 3 is the same as the inner diameter of the vacuum pipeline 1. During installation, the filter pipeline 2 can be directly inserted into the interior of the vacuum pipeline 1;

[0025] On the outer side of the connecting pipe 3, there are an annular block 31, a first sealing groove 32 and an annular groove 34. The annular block 31 is located on the left side of the first sealing groove 32, and the annular groove 34 is located on the right side of the first sealing groove 32. Inclined surfaces are provided in the annular block 31, the first sealing groove 32 and the annular groove 34. A sealing ring 321 is sleeved in the first sealing groove 32. A filter ring 33 is provided in the connecting pipe 3. A filter net is provided in the filter ring 33. The filter net has two layers, and filter paper is provided in the middle position to make the filtering effect better. On both sides of the filter ring 33, there are fixedly connected clamping blocks 331. In the connecting pipe 3 on both sides of the clamping blocks 331, there are clamping grooves 311. The clamping grooves 311 are L-shaped. The clamping blocks 331 are slidably connected to the clamping grooves 311 and are adapted to the clamping grooves 311. When the filter ring 33 needs to be replaced, rotate the filter ring 33 to rotate the clamping blocks 331 on the filter ring 33 to the opening of the clamping grooves 311, and then take it out, which is convenient for replacement;

[0026] Inside one end of the vacuum pipe 1 close to the filter pipe 2, there is a groove 4. A limiting block 5 is slidably connected in the groove 4. The rear end of the limiting block 5 is fixedly connected with a spring 51. The other end of the spring 51 is fixedly connected to the groove 4. Inside the vacuum pipe 1 on the outer side of the annular block 31, there is a second sealing groove 6. A sealing gasket 61 is provided in the second sealing groove 6. The limiting block 5 is slidably connected to the annular groove 34. Inclined surfaces are provided on both sides of the limiting block 5. The inclined angles of the inclined surfaces on both sides of the limiting block 5 are the same as those of the inclined surfaces in the annular block 31, the first sealing groove 32 and the annular groove 34.

[0027] Working principle: During installation, the filter pipe 2 is installed at one end of the vacuum pipe 1 through the connecting pipe 3. At this time, the annular block 31 contacts the sealing gasket 61, the sealing ring 321 contacts the inner wall of the vacuum pipe 1, and the limiting block 5 is located in the annular groove 34. Under the action of the sealing gasket 61 and the sealing ring 321, the connection between the filter pipe 2 and the vacuum pipe 1 is sealed; when the inside of the filter pipe 2 needs to be cleaned, directly open the sealing cover 7, which is convenient to operate and avoids disassembling the filter pipe 2; when the filter ring 33 needs to be replaced, directly pull out the filter pipe 2 from the horizontal position in the vacuum pipe 1, then rotate the filter ring 33 to rotate the clamping blocks 331 on the filter ring 33 to the opening of the clamping grooves 311, and then take it out, which is convenient for replacement.

[0028] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A vacuum pipeline filtering device, characterized in that: include: A vacuum pipe (1), wherein one end of the vacuum pipe (1) is fixedly connected to a flange (11), and the other end is provided with a filter pipe (2), the filter pipe (2) is U-shaped, and a sealing cover (7) is provided on the arc portion, the end of the filter pipe (2) connected to the vacuum pipe (1) is fixedly connected to a connecting pipe (3), an annular block (31), a first sealing groove (32) and an annular groove (34) are provided on the outside of the connecting pipe (3), a sealing ring (321) is sleeved in the first sealing groove (32), a filter ring (33) is provided in the connecting pipe (3), and clamping blocks are fixedly connected on both sides of the filter ring (33) (331), a clamping groove (311) is provided in the connecting pipe (3) located on both sides of the clamping block (331), a groove (4) is provided inside the end of the vacuum pipe (1) close to the filtering pipe (2), a limiting block (5) is slidably connected in the groove (4), a spring (51) is fixedly connected to the rear end of the limiting block (5), and the other end of the spring (51) is fixedly connected to the groove (4), a second sealing groove (6) is provided in the vacuum pipe (1) located outside the annular building block (31), a sealing gasket (61) is provided in the second sealing groove (6), and the limiting block (5) is slidably connected to the annular groove (34).

2. A vacuum pipeline filtering device according to claim 1, characterized in that: The diameter of the connecting pipe (3) is the same as the inner diameter of the vacuum pipe (1); the annular building block (31) is located on the left side of the first sealing groove (32); the annular groove (34) is located on the right side of the first sealing groove (32); and inclined surfaces are provided in the annular building block (31), the first sealing groove (32) and the annular groove (34).

3. A vacuum pipeline filtering device according to claim 2, characterized in that: The inclined surfaces on both sides of the limit block (5) have the same inclination angle as the inclined surfaces inside the annular building block (31), the first sealing groove (32) and the annular groove (34).

4. A vacuum pipeline filtering device according to claim 3, characterized in that: The card slot (311) is L-shaped, and the card connection block (331) is slidably connected to the card slot (311) and is adapted to the card slot (311).

5. A vacuum pipeline filtering device according to claim 4, characterized in that: A filter net is arranged inside the filter ring (33), the filter net has two layers, and filter paper is arranged in the middle.

6. A vacuum pipeline filtering device according to claim 5, characterized in that: The arc-shaped portion of the filter pipe (2) is fixedly connected with a short pipe, and the outer end of the short pipe is threadedly connected to a sealing cover (7).

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