CN217356003U - High-sealing flange for vacuum pump - Google Patents
High-sealing flange for vacuum pump Download PDFInfo
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- CN217356003U CN217356003U CN202221052154.1U CN202221052154U CN217356003U CN 217356003 U CN217356003 U CN 217356003U CN 202221052154 U CN202221052154 U CN 202221052154U CN 217356003 U CN217356003 U CN 217356003U
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- sealing
- seal
- vacuum pump
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- flange
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Abstract
The utility model relates to a vacuum pump is with high leakproofness flange, its characterized in that: the sealing device comprises a second sealing piece, a first sealing piece, a plate body and a convex part arranged on the plate body; the first seal is disposed on the plate body around the protrusion; the second seal is disposed around the boss. The problem of among the current scheme flange installation back and vacuum pump between form the gap, and wear and tear seriously between vacuum pump and the flange, lead to the relatively poor sealing performance of flange is solved.
Description
Technical Field
The utility model relates to a sealing flange field especially relates to a high leakproofness flange for vacuum pump.
Background
The vacuum pump refers to a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method. Vacuum pumps are devices that use various methods to improve, create and maintain a vacuum in an enclosed space. With the development of vacuum applications, a variety of vacuum pumps have been developed, with pumping speeds ranging from a few tenths of liters per second to hundreds of thousands or millions of liters per second. With the wider and wider requirements of the vacuum technology on the application pressure range in the production and scientific research fields, most of the vacuum technology needs a vacuum pumping system consisting of several vacuum pumps to jointly pump air so as to meet the requirements of the production and scientific research processes.
The vacuum pump has high requirements on sealing performance, and the sealing flange is one of components of the vacuum pump. A gap is formed between the flange and a vacuum pump after the existing flange is installed, and the vacuum pump and the flange are seriously abraded, so that the sealing performance of the flange is poor. How to solve this problem becomes crucial.
Disclosure of Invention
To the shortcoming of above-mentioned prior art, the utility model aims at providing a vacuum pump is with high leakproofness flange to form the gap between flange mounting back and the vacuum pump among the solution prior art, and wearing and tearing are serious between vacuum pump and the flange, lead to the relatively poor problem of sealing performance of flange.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a high-sealing flange for a vacuum pump;
the sealing device comprises a second sealing piece, a first sealing piece, a plate body and a convex part arranged on the plate body; the first seal is disposed on the plate body around the boss; the second seal is disposed around the boss; a first sealing groove is formed in the plate body around the convex part; a first sealing block is arranged along the first sealing groove; the first seal block is embedded in the first seal; the first sealing element comprises a connecting piece and sealing rings arranged at intervals; the connecting piece is connected between the adjacent sealing rings at a position close to the first sealing block; the first sealing block abuts against and bends the connecting piece.
The further technical scheme is as follows: lubricating grease is stored between the sealing rings; the connecting piece bends towards the direction of the lubricating grease.
The further technical scheme is as follows: a second sealing groove is arranged around the convex part at intervals; the second seal is disposed within the second seal groove.
The further technical scheme is as follows: a communication groove is formed between the adjacent second seal grooves in the convex part in parallel; a support piece is arranged in the communication groove; the support abuts adjacent the second seal.
The further technical scheme is as follows: openings are oppositely formed in the two sides of the communication groove; the supporting piece comprises a sealing strip, a supporting block abutting against the second sealing piece and second sealing blocks oppositely arranged on two sides of the sealing strip; the supporting block is arranged at one end, close to the second sealing element, of the sealing strip; the sealing strip is arranged in the communicating groove; the second seal block is disposed within the opening.
The further technical scheme is as follows: a bearing part and a fixing block for fixing the bearing part are arranged in the convex part; the convex part is provided with an installation groove around the bearing piece; the fixed block is embedded into the mounting groove; the fixed block compresses the bearing piece tightly.
The further technical scheme is as follows: a fixing piece penetrates through the fixing block; the fixing member is screwed into the convex portion.
The further technical scheme is as follows: one end of the fixed block, which is tightly pressed against the bearing piece, is provided with a positioning part; the positioning part is embedded in the vacuum pump.
Compared with the prior art, the utility model discloses a beneficial technological effect as follows: (1) the sealing block abuts against the sealing ring, so that the structural strength of the first sealing element is improved, and the lubricating grease is pushed after the connecting piece is bent, so that the position of the first sealing element can be lubricated by the lubricating grease, and the sealing effect of the first sealing element is ensured; (2) the rotating position of the rotating shaft along the through hole is sealed through the second sealing element, the sealing block is arranged in the opening to support the sealing strip, the sealing strip has a sealing effect on the rotating shaft, and the sealing effect of the supporting element and the second sealing element is improved; (3) the supporting block supports the second sealing element by abutting against the second sealing element, so that the second sealing element is prevented from deforming and displacing, and the second sealing element still has good sealing property after being used for a long time; (4) location portion sets up in the upper end of fixed block, and when the flange mounting was on the vacuum pump, location portion embedding vacuum pump accomplished the location installation of flange for the rotation axis can steadily rotate, avoids rotation axis wearing and tearing support piece and second sealing member, has guaranteed the sealed effect of support piece and second sealing member.
Drawings
Fig. 1 shows a schematic structural diagram of a high-sealing flange for a vacuum pump according to a first embodiment of the present invention.
Fig. 2 shows an enlarged structural view at a in fig. 1.
Fig. 3 shows a left side view structural diagram at B in fig. 1.
Fig. 4 shows a schematic structural diagram of a high-sealing flange for a vacuum pump according to a second embodiment of the present invention.
In the drawings, the reference numbers: 1. a plate body; 11. a first seal groove; 12. a first seal block; 2. a convex portion; 21. a second seal groove; 22. a communicating groove; 23. an opening; 3. a first seal member; 31. a seal ring; 32. connecting sheets; 33. lubricating grease; 4. a second seal member; 5. a support member; 51. a sealing strip; 52. a support block; 53. a second seal block; 6. a bearing member; 61. a fixed block; 62. mounting grooves; 63. a fixing member; 64. a positioning part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following detailed description of the device according to the present invention is made with reference to the accompanying drawings and the detailed description of the present invention. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.
Fig. 1 shows a schematic structural diagram of a high-tightness flange for a vacuum pump according to a first embodiment of the present invention. Fig. 2 shows an enlarged structural view at a in fig. 1. Fig. 3 shows a left side view structural diagram at B in fig. 1. With reference to fig. 1, 2 and 3, the present invention discloses a high-sealing flange for a vacuum pump.
The high-sealability flange for a vacuum pump comprises a second sealing member 4, a first sealing member 3, a plate body 1 and a convex portion 2 provided on the plate body 1. The first seal 3 is provided on the plate body 1 around the convex portion 2. A second seal 4 is arranged around the protrusion 2.
The plate body 1 is arranged in the horizontal direction. The convex portion 2 is provided on the upper surface of the plate body 1. The first sealing member 3 is provided on the upper surface of the plate body 1 and the lower surface of the plate body 1. Two groups of through holes which are communicated up and down are arranged in the convex part 2. The second seal 4 is arranged around the inner surface of the through hole.
The plate body 1 is provided with a first sealing groove 11 around the convex part 2. A first seal block 12 is disposed along the first seal groove 11. The first seal block 12 is embedded in the first seal 3.
Preferably, the first sealing member 3 is a rubber sealing ring. First seal grooves 11 are formed in the upper surface of plate body 1 and the lower surface of plate body 1, respectively. The first seal block 12 is disposed in the first seal groove 11 in the vertical direction. When the first sealing member 3 is disposed in the first sealing groove 11, the upper end of the first sealing block 12 is inserted into the lower end of the first sealing member 3.
The first seal 3 comprises a web 32 and spaced sealing rings 31. The connecting piece 32 is connected between adjacent seal rings 31 at a position close to the first seal block 12. The first seal block 12 abuts and bends the connecting piece 32.
Preferably, there are two sets of seal rings 31. One set of sealing rings 31 is outside the other sealing ring 31. The two ends of the connecting piece 32 are respectively connected with the sealing ring 31.
When the first sealing element 3 is placed in the first sealing groove 11, the upper end of the first sealing block 12 abuts against the lower surface of the connecting piece 32, and the connecting piece 32 is bent upwards by the first sealing block 12.
Lean on sealing washer 31 through first seal block 12, improved the structural strength of first sealing member 3 to promote grease 33 after buckling through connection piece 32, make grease 33 can lubricate the position of first sealing member 3, guaranteed the sealed effect of first sealing member 3.
Second seal grooves 21 are formed around the convex portion 2 at intervals. The second seal 4 is disposed in the second seal groove 21.
The second seal groove 21 is provided at intervals in the through hole of the boss 2.
The adjacent second seal grooves 21 in the convex portion 2 are provided with communication grooves 22 in parallel. The communication groove 22 is provided with a support 5 therein. The support 5 abuts against the adjacent second seal 4.
The communication groove 22 is formed in the through hole of the projection 2 in the vertical direction. The upper and lower ends of the communication groove 22 communicate with the adjacent second seal grooves 21, respectively. The support member 5 is vertically disposed in the communication groove 22. The upper and lower ends of the support 5 abut against the adjacent second sealing member 4.
The communicating groove 22 is provided with openings 23 at opposite sides thereof. The support 5 comprises a sealing strip 51, a support block 52 abutting against the second sealing element 4 and second sealing blocks 53 arranged opposite on both sides of the sealing strip 51. A support block 52 is provided at one end of the sealing strip 51 adjacent the second seal 4. The weather strip 51 is placed in the communication groove 22. The second seal block 53 is disposed within the opening 23.
Preferably, the seal strip 51 is a rubber seal strip. Support blocks 52 are respectively provided at upper and lower ends of the weather strip 51.
A rotating shaft is arranged in the through hole of the convex part 2 in a penetrating mode, and when the vacuum pump works, the rotating shaft rotates along the through hole of the convex part 2.
The position of the rotating shaft rotating along the through hole is sealed through the second sealing element 4, the second sealing block 53 is arranged in the opening 23, the sealing strip 51 is supported, the sealing strip 51 plays a role in sealing the rotating shaft, and the sealing effect of the supporting element 5 and the second sealing element 4 is improved.
The supporting block 52 supports the second sealing element 4 against the second sealing element 4, so that the second sealing element 4 is prevented from deforming and displacing, and the second sealing element 4 still has good sealing performance after being used for a long time.
The second embodiment:
fig. 4 shows a schematic structural diagram of a high-sealing flange for a vacuum pump according to a second embodiment of the present invention. As shown in fig. 1, 2, 3 and 4, the second embodiment is different from the first embodiment in that:
the convex portion 2 is provided with a bearing member 6 and a fixing block 61 that fixes the bearing member 6. The convex portion 2 has an installation groove 62 formed around the bearing 6. The fixing block 61 is fitted into the mounting groove 62. The fixing block 61 presses the bearing 6.
Preferably, the fixing block 61 has an L-shape. The bearing member 6 is horizontally disposed at the lower end inside the boss 2. The mounting groove 62 is opened on the outer side of the convex portion 2. The lower end of the fixing block 61 is inserted into the mounting groove 62. The upper end of the fixing block 61 presses the upper end of the bearing 6.
The fixing block 61 is penetrated with a fixing member 63. The fixture 63 is screwed into the boss 2.
Preferably, the fixing member 63 is a bolt. The fixing member 63 horizontally penetrates the fixing block 61. After the fixing member 63 is tightened, the fixing block 61 is fixed in the mounting groove 62, so that the fixing block 61 can be continuously pressed against the fixed bearing 6.
One end of the fixing block 61 pressing against the bearing 6 is provided with a positioning portion 64. The positioning portion 64 is embedded in the vacuum pump.
The positioning part 64 is provided at the upper end of the fixing block 61. When the flange is installed on the vacuum pump, the positioning part 64 is embedded into the vacuum pump to complete the positioning installation of the flange, so that the rotating shaft can rotate stably, the rotating shaft is prevented from wearing the support piece 5 and the second sealing piece 4, and the sealing effect of the support piece 5 and the second sealing piece 4 is ensured.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The utility model provides a high leakproofness flange for vacuum pump which characterized in that: the sealing device comprises a second sealing element, a first sealing element, a plate body and a convex part arranged on the plate body; the first seal is disposed on the plate body around the protrusion; the second seal is disposed around the boss; a first sealing groove is formed in the plate body around the convex part; a first seal block is arranged along the first seal groove; the first seal block is embedded in the first seal; the first sealing element comprises a connecting piece and sealing rings arranged at intervals; the connecting piece is connected between the adjacent sealing rings at a position close to the first sealing block; the first sealing block abuts against and bends the connecting piece.
2. The high-sealability flange for a vacuum pump according to claim 1, wherein: lubricating grease is stored between the sealing rings; the connecting piece bends towards the direction of the lubricating grease.
3. The high-sealability flange for a vacuum pump according to claim 1, wherein: a second sealing groove is arranged around the convex part at intervals; the second seal is disposed within the second seal groove.
4. The high-sealability flange for a vacuum pump according to claim 3, wherein: a communication groove is formed between the adjacent second sealing grooves in the convex part in parallel; a support piece is arranged in the communication groove; the support abuts adjacent the second seal.
5. The high-sealability flange for a vacuum pump according to claim 4, wherein: openings are oppositely formed in the two sides of the communication groove; the supporting piece comprises a sealing strip, a supporting block abutting against the second sealing element and second sealing blocks oppositely arranged on two sides of the sealing strip; the supporting block is arranged at one end, close to the second sealing element, of the sealing strip; the sealing strip is arranged in the communicating groove; the second seal block is disposed within the opening.
6. The high-sealability flange for a vacuum pump according to claim 1, wherein: a bearing part and a fixing block for fixing the bearing part are arranged in the convex part; the convex part is provided with an installation groove around the bearing piece; the fixed block is embedded into the mounting groove; the fixed block compresses the bearing piece tightly.
7. The high-sealability flange for a vacuum pump according to claim 6, wherein: a fixing piece penetrates through the fixing block; the fixing member is screwed into the convex portion.
8. The high-sealability flange for a vacuum pump according to claim 7, wherein: one end of the fixed block, which is tightly pressed against the bearing piece, is provided with a positioning part; the positioning part is embedded in the vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221052154.1U CN217356003U (en) | 2022-05-05 | 2022-05-05 | High-sealing flange for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221052154.1U CN217356003U (en) | 2022-05-05 | 2022-05-05 | High-sealing flange for vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217356003U true CN217356003U (en) | 2022-09-02 |
Family
ID=83011152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221052154.1U Active CN217356003U (en) | 2022-05-05 | 2022-05-05 | High-sealing flange for vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217356003U (en) |
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2022
- 2022-05-05 CN CN202221052154.1U patent/CN217356003U/en active Active
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