CN213236475U - High-pressure rotary joint - Google Patents
High-pressure rotary joint Download PDFInfo
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- CN213236475U CN213236475U CN202021634031.XU CN202021634031U CN213236475U CN 213236475 U CN213236475 U CN 213236475U CN 202021634031 U CN202021634031 U CN 202021634031U CN 213236475 U CN213236475 U CN 213236475U
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- joint body
- positioning
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- top cap
- sealing
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Abstract
The utility model discloses a high-pressure rotary joint, which comprises a joint body A and a joint body B, wherein a positioning steel ball is arranged between the joint body A and the joint body B; the end part of the joint body A is arranged in the joint body B and is provided with a positioning step which is abutted against the positioning steel ball, at least one sealing ring is arranged between the end part of the joint body A and the joint body B, the sealing ring is positioned on the side surface of the positioning step opposite to the positioning steel ball, an internal thread is arranged in the joint body B and is screwed with a positioning top cap, the positioning top cap and the sealing ring form sealing abutting against and simultaneously also enable the sealing ring and the positioning step to form sealing abutting against, and the abutting force among the positioning steel ball, the positioning step and the sealing ring can be adjusted by rotating the positioning top cap positively or anticlockwise. The utility model discloses when better assurance rotary joint high-pressure seal, can not influence its self rotation function again, sealed effect further improves, and structural design is simpler, use reliably.
Description
Technical Field
The utility model belongs to the technical field of connect, concretely relates to high-pressure rotary joint.
Background
Joint connections are required on both pneumatic and hydraulic tools to connect external equipment providing high pressure power to the tool for operational use. During operation and use, the pneumatic and hydraulic tools often rotate left and right along with an operator, and pipelines connecting a connector connecting piece on the tool and external high-pressure power equipment are also twisted along with the rotation of the operation tool, so that resistance is generated for a user, and the operation and use are difficult; the connecting line connection piece is thus provided as a rotatable joint which makes it possible to protect the connecting line from the rotational effects of the pneumatic and hydraulic tool operation.
The rotary joint mainly comprises a joint body which can be connected with the two parts in a relatively rotating manner, and the rotary joint needs to transmit high-pressure power, so that the sealing property of the connection between the two parts is particularly important; the existing rotary sealing joint is mostly provided with a plurality of sealing rings at the joint of two joint bodies to realize the sealing performance of the connection, but the connection structure can bear limited pressure, and the sealing rings are easy to damage when in connection and use, so that the service life is short; a relatively complex sealing structure is adopted, so that although the sealing reliability is improved to a certain extent, the use cost is high; therefore, it is necessary to develop a rotary joint with reliable sealing performance and pressure bearing performance and low use cost.
SUMMERY OF THE UTILITY MODEL
The object of the utility model is to solve the problem that provides in the above-mentioned background art, provide a high pressure rotary joint.
In order to achieve the above purpose, the technical scheme of the utility model is that: a high-pressure rotary joint comprises a joint body A and a joint body B, wherein a positioning steel ball is arranged between the joint body A and the joint body B; the end part of the joint body A is arranged in the joint body B and is provided with a positioning step which is abutted against the positioning steel ball, at least one sealing ring is arranged between the end part of the joint body A and the joint body B, the sealing ring is positioned on the side surface of the positioning step opposite to the positioning steel ball, an internal thread is arranged in the joint body B and is screwed with a positioning top cap, the positioning top cap and the sealing ring form sealing abutting against and simultaneously also enable the sealing ring and the positioning step to form sealing abutting against, and the abutting force among the positioning steel ball, the positioning step and the sealing ring can be adjusted by rotating the positioning top cap positively or anticlockwise.
In the high-pressure rotary joint, a sealing ring which is in sealing and abutting connection with the end face of the positioning top cap is arranged in the joint body B.
In the above-mentioned high-pressure rotary joint, the number of sealing rings is two, and the connection terminal surface that two adjacent sealing rings leaned on each other is located and connects between body A tip and the joint body B, and one of them sealing ring terminal surface that is close to the location hood is located outside joint body A.
In the above high-pressure rotary joint, an elastic positioning ring is arranged between the sealing ring and the positioning top cap.
In the above high-pressure rotary joint, a polygonal twisting hole is provided in the positioning top cap.
In the above-mentioned high-pressure rotary joint, the sealing ring is made of teflon.
Adopt above technical scheme, the utility model discloses following beneficial effect has:
the utility model is provided with a positioning step at the connecting end of the joint body A in the joint body B, so as to realize better positioning connection between the joint body A and the joint body B, and a sealing ring is arranged between the joint body A and the joint body B, and a positioning top cap for sealing and abutting the sealing ring is arranged in the joint body B; the positioning top cap can enable the sealing ring and the positioning step to form good abutting seal, and can rotate relative to the rotary joint body A and the joint body B while screwing the positioning top cap in the installation process, so that the influence of overlarge abutting force in installation on the rotary function of the rotary joint is avoided; thereby make the location hood realize the high-pressure seal between butt joint body A and the joint body B again, can not influence the rotary function of rotary joint self when guaranteeing the sealing ring, the sealed effect of sealing ring also effectively improves under the effect of location hood, structural design is simpler, the use is also reliable.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present invention provides a high pressure rotary joint, which includes a joint body a1 and a joint body B2, wherein a positioning steel ball 3 is disposed between the joint body a1 and the joint body B2; the end part of the joint body A1 is arranged in the joint body B2, a positioning step 4 abutting against the positioning steel ball 3 is arranged on the end part of the joint body A1, at least one sealing ring 5 is arranged between the end part of the joint body A1 and the joint body B2, the sealing ring 5 is positioned on the side surface of the positioning step 4 opposite to the positioning steel ball 3, an internal thread is arranged in the joint body B2, a positioning top cap 6 is screwed in the joint body B2, the positioning top cap 6 and the sealing ring 5 form sealing abutting, and meanwhile, the sealing ring 5 and the positioning step 4 also form sealing abutting; the sealing ring 5 is preferably made of polytetrafluoroethylene material, and the sealing ring 5 made of polytetrafluoroethylene material has good sealing performance and extremely low friction coefficient, so that when the positioning top cap 6 abuts against the plurality of sealing rings 5 and the positioning step 4 to form sealing abutting, the functional effect that the relative rotation between the joint body A1 and the joint body B2 is influenced due to overlarge friction caused by abutting sealing force is avoided; be provided with the polygon in the above-mentioned location hood 6 and twist commentaries on classics hole 9 to be convenient for twist with the instrument and change, the location hood 6 just or the anticlockwise rotation adjustable location steel ball 3, location step 4, the dynamics of leaning on between the sealing ring 5 when the assembly, thereby guarantee that sealing ring 5 supports to lean on sealed while, can not influence the function of relative rotation between joint body A1 and joint body B2 two.
Further, a sealing ring 7 which is in sealing abutting contact with the end face of the positioning top cap 6 is arranged in the joint body B2, so that the sealing performance of the threaded connection between the positioning top cap 6 and the joint body B2 is improved.
Further, the number of the sealing rings 5 is two, the connecting end surfaces of two adjacent sealing rings 5 abutting against each other are located between the end of the joint body a1 and the joint body B2, and the end surface of one sealing ring 5 close to the positioning top cap 6 is located outside the joint body a1, so that the entering high-pressure-free power forms a direct opposite-flushing path with a plurality of connecting and sealing positions of the sealing rings 5 when passing through the end of the joint body a1, and a good sealing effect is achieved.
Further, be provided with elastic positioning ring 8 between sealing ring 5 and the location hood 6, elastic positioning ring 8 has elastic deformation's function, and the dynamics of avoiding twisting location hood 6 that can be fine when too big, to between a plurality of sealing rings 5 and cause excessive the damage of leaning on between it and other parts.
The embodiment of the present invention provides a high-pressure swivel, and the principle and the implementation of the present invention are explained by applying a specific example, and the above description of the embodiment is only used to help understanding the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (6)
1. A high-pressure rotary joint comprises a joint body A and a joint body B, wherein a positioning steel ball is arranged between the joint body A and the joint body B; the method is characterized in that: the end part of the joint body A is arranged in the joint body B and is provided with a positioning step which is abutted against the positioning steel ball, at least one sealing ring is arranged between the end part of the joint body A and the joint body B, the sealing ring is positioned on the side surface of the positioning step opposite to the positioning steel ball, an internal thread is arranged in the joint body B and is screwed with a positioning top cap, the positioning top cap and the sealing ring form sealing abutting against and simultaneously also enable the sealing ring and the positioning step to form sealing abutting against, and the abutting force among the positioning steel ball, the positioning step and the sealing ring can be adjusted by rotating the positioning top cap positively or anticlockwise.
2. A high pressure swivel according to claim 1, wherein: and a sealing ring which is tightly abutted against the end face of the positioning top cap is arranged in the joint body B.
3. A high pressure swivel according to claim 1, wherein: the quantity of sealing ring is two, and the connection terminal surface that two adjacent sealing rings leaned on each other is located and connects between body A tip and the joint body B, is close to one of them sealing ring terminal surface of location hood and is in outside connecting body A.
4. A high pressure swivel according to claim 3, wherein: an elastic positioning ring is arranged between the sealing ring and the positioning top cap.
5. A high pressure swivel according to claim 1, wherein: and a polygonal twisting hole is formed in the positioning top cap.
6. A high pressure swivel according to claim 1, wherein: the sealing ring is made of polytetrafluoroethylene materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021634031.XU CN213236475U (en) | 2020-08-08 | 2020-08-08 | High-pressure rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021634031.XU CN213236475U (en) | 2020-08-08 | 2020-08-08 | High-pressure rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213236475U true CN213236475U (en) | 2021-05-18 |
Family
ID=75893873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021634031.XU Active CN213236475U (en) | 2020-08-08 | 2020-08-08 | High-pressure rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213236475U (en) |
-
2020
- 2020-08-08 CN CN202021634031.XU patent/CN213236475U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |