CN215830677U - Special joint for air pumping port of vacuum pump - Google Patents
Special joint for air pumping port of vacuum pump Download PDFInfo
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- CN215830677U CN215830677U CN202121998029.5U CN202121998029U CN215830677U CN 215830677 U CN215830677 U CN 215830677U CN 202121998029 U CN202121998029 U CN 202121998029U CN 215830677 U CN215830677 U CN 215830677U
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- joint
- connecting plate
- positioning
- vacuum pump
- vacuum system
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Abstract
The utility model discloses a special joint for a vacuum pump extraction opening in the technical field of vacuum equipment, which comprises a joint body, wherein the bottom of the joint body is provided with an external thread matched with an internal thread of a vacuum system pipeline joint; compared with the prior art, the double-seal structure has the advantages that the double-seal effect is better through the threads and the seal ring, the positioning is more accurate during the assembling process through the flange, the strength is higher, the service life is longer, the structure is simple, and the manufacture is convenient.
Description
Technical Field
The utility model relates to the technical field of vacuum equipment, in particular to a special joint for an air suction port of a vacuum pump.
Background
In an electric industrial vacuum system, a vacuum pump is required to provide a vacuum source for the vacuum system. Usually, a vacuum system pipeline is connected with a vacuum pump extraction opening, an internal thread is arranged on a vacuum system pipeline joint, an external thread matched with the internal thread on the vacuum system pipeline is arranged on a threaded pipe, and the threaded pipe is connected with the vacuum system pipeline in a matched mode through the internal thread and the external thread.
The main disadvantages of this method are: 1. the traditional vacuum system pipeline joint is connected with an air pump pumping port through threads, sealing glue needs to be coated when the threads are connected with a pipe, the pipe cannot be well positioned, is easy to loosen, and has high requirements on assembly processes. 2. The traditional vacuum system pipeline joint is connected with an air pump pumping port through threads, the strength of a threaded pipe is poor, and the threaded pipe is easy to break when the industrial and mining conditions are poor.
In summary, the applicant proposes a special connector for an air suction port of a vacuum pump.
SUMMERY OF THE UTILITY MODEL
The special joint for the air pumping hole of the vacuum pump solves the problems that the joint of the air pumping hole of the vacuum pump in the prior art is not tightly sealed and is easy to loosen.
In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:
the special joint for the vacuum pump extraction opening comprises a joint body, wherein the bottom of the joint body is provided with an external thread matched with an internal thread on a vacuum system pipeline joint, the joint body is detachably connected with a positioning connecting plate, the lower surface of the positioning connecting plate and the top of the external thread are positioned on the same horizontal line, the lower surface of the positioning connecting plate is also provided with a sealing groove, a sealing ring is arranged in the sealing groove, the positioning connecting plate is also provided with a plurality of positioning holes, the positions of the vacuum system pipeline joint, which correspond to the positioning holes, are provided with mounting holes, and the mounting holes are threaded holes; with the internal thread connection on external screw thread and the vacuum system pipe joint, then through locating hole on the positioning connection board and the mounting hole on the vacuum system pipe joint, the bottom surface that twists the bolt with the positioning connection board in locating hole and mounting hole closely laminates with the terminal surface that the vacuum system pipe connects, carries out double seal through external screw thread and sealing washer, and sealed effect is better, and the positioning connection board can further strengthen the intensity that connects the body, and life is longer.
Further limiting, a circle of limiting bosses are further annularly arranged on the circumferential surface of the connector body, limiting grooves matched with the limiting bosses are formed in the lower surface of the positioning connecting plate, and the lower surface of the positioning connecting plate and the tops of the external threads are located on the same horizontal line in the matching state of the limiting grooves and the limiting bosses; set up spacing boss and spacing recess like this and establish the location connecting plate card on connecting the body, make it can not down fall, compress tightly on the vacuum system pipeline through the location connecting plate with connecting the body, more firm.
Compared with the prior art, the double-seal structure has the advantages that the double-seal effect is better through the threads and the seal ring, the positioning is more accurate during the assembling process through the flange, the strength is higher, the service life is longer, the structure is simple, and the manufacture is convenient.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic diagram of the utility model in conjunction with a vacuum system pipe fitting.
The designations in the figures correspond respectively to: 1-joint body, 11-limiting boss, 2-external thread, 3-positioning connecting plate, 31-sealing groove, 32-limiting groove, 33-positioning hole, 4-sealing ring, 5-vacuum system pipeline joint and 51-mounting hole.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
Example (b):
as shown in fig. 1-3, the vacuum system pipeline is connected with a vacuum pump extraction opening, the vacuum pump extraction opening special joint comprises a joint body, the bottom of the joint body 1 is provided with an external thread 2 matched with an internal thread on a vacuum system pipeline joint 5, the joint body 1 is detachably connected with a positioning connecting plate 3, the circumferential surface of the joint body 1 is also provided with a circle of limiting bosses 11 in a surrounding manner, the lower surface of the positioning connecting plate 3 is provided with limiting grooves 32 matched with the limiting bosses 11, and the lower surface of the positioning connecting plate 3 and the tops of the external threads 2 are positioned on the same horizontal line under the matching state of the limiting grooves 32 and the limiting bosses 11; the lower surface of the positioning connecting plate 3 is further provided with a sealing groove 31, a sealing ring 4 is arranged in the sealing groove 31, the positioning connecting plate 3 is further provided with a plurality of positioning holes 33, the positions of the vacuum system pipeline joints 5 corresponding to the positioning holes 33 are provided with mounting holes 51, and the mounting holes 51 are threaded holes.
The external thread 2 is connected with the internal thread on the vacuum system pipeline joint 5, then the positioning hole 33 on the positioning connecting plate 3 and the mounting hole 51 on the vacuum system pipeline joint 5 are used, the bolt is screwed into the positioning hole 33 and the mounting hole 51 to enable the bottom surface of the positioning connecting plate 3 to be tightly attached to the end surface of the vacuum system pipeline joint 5, double sealing is carried out through the external thread 2 and the sealing ring 31, the sealing effect is better, the strength of the joint body 1 can be further enhanced through the positioning connecting plate 3, and the service life is longer; set up spacing boss 11 and spacing recess 32 like this and establish the location connecting plate 3 card on connecting body 1, make it can not down fall, compress tightly on the vacuum system pipeline through location connecting plate 3 with connecting body 1, more firm.
When the connector is installed, the positioning connecting plate 3 needs to be sleeved in from the upper part of the connector body 1 and then slides downwards to enable the limiting groove 32 to be matched with the limiting boss 11.
Compared with the prior art, the double-seal structure has the advantages that the double-seal effect is better through the threads and the seal ring, the positioning is more accurate during the assembling process through the flange, the strength is higher, the service life is longer, the structure is simple, and the manufacture is convenient.
The special joint for the pumping hole of the vacuum pump provided by the utility model is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the utility model and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (2)
1. Vacuum pump extraction opening special joint, including connecting the body, its characterized in that: the vacuum pipe joint is characterized in that an external thread matched with an internal thread on a vacuum system pipe joint is formed in the bottom of the joint body, a positioning connecting plate is detachably connected to the joint body, the lower surface of the positioning connecting plate and the top of the external thread are located on the same horizontal line, a sealing groove is further formed in the lower surface of the positioning connecting plate, a sealing ring is arranged in the sealing groove, a plurality of positioning holes are further formed in the positioning connecting plate, a mounting hole is formed in the position, corresponding to the positioning hole, on the vacuum system pipe joint, and the mounting hole is a threaded hole.
2. The special joint for the extraction opening of the vacuum pump according to claim 1, wherein: the connector is characterized in that a circle of limiting boss is further annularly arranged on the circumferential surface of the connector body, a limiting groove matched with the limiting boss is formed in the lower surface of the positioning connecting plate, and the lower surface of the positioning connecting plate and the tops of the external threads are located on the same horizontal line under the matching state of the limiting groove and the limiting boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121998029.5U CN215830677U (en) | 2021-08-24 | 2021-08-24 | Special joint for air pumping port of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121998029.5U CN215830677U (en) | 2021-08-24 | 2021-08-24 | Special joint for air pumping port of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215830677U true CN215830677U (en) | 2022-02-15 |
Family
ID=80196635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121998029.5U Active CN215830677U (en) | 2021-08-24 | 2021-08-24 | Special joint for air pumping port of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215830677U (en) |
-
2021
- 2021-08-24 CN CN202121998029.5U patent/CN215830677U/en active Active
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