CN213576121U - Sealing structure for fluid joint - Google Patents
Sealing structure for fluid joint Download PDFInfo
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- CN213576121U CN213576121U CN202022101223.0U CN202022101223U CN213576121U CN 213576121 U CN213576121 U CN 213576121U CN 202022101223 U CN202022101223 U CN 202022101223U CN 213576121 U CN213576121 U CN 213576121U
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- copper pipe
- connecting copper
- section
- outer sleeve
- sealing structure
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Abstract
The utility model discloses a sealing structure for a fluid joint, which comprises a joint upper assembly, a joint lower assembly and an outer sleeve for connecting the joint upper assembly and the joint lower assembly; the joint upper assembly comprises a first connecting copper pipe and a first O-shaped ring sleeved on the first connecting copper pipe, and the joint lower assembly comprises a second connecting copper pipe and a second O-shaped ring positioned on the second connecting copper pipe; one end of the first connecting copper pipe is inserted into the second connecting copper pipe, and a sealing structure is formed by the first O-shaped ring and the second O-shaped ring. The utility model provides a O type circle one is in the state of deformation between insertion section and step hole wall, reaches the sealed effect of circumference, and simultaneously, O type circle two produces the deformation back between big footpath section and salient section terminal surface, has formed the secondary end face seal after that, consequently, utilizes O type circle whole to reach the dual effect of circumference seal and terminal surface density.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a seal structure for fluid coupling.
Background
The adapter of the existing cold coil in the magnetic field stimulator in the market comprises a socket and a plug, wherein the front end part of the plug is sleeved with an annular connecting piece which can move back and forth and is provided with internal threads, the outer circumferential surface of the socket is provided with corresponding internal threads, and the purpose of fastening the adapter is achieved by utilizing the matching of the threads between the socket and the internal threads, so that a circulation channel of a cooling medium is formed.
The prior art has two problems: 1. the sealing performance is unstable and is greatly influenced by processing errors and tightening force; 2. the screwed length of the joint is greatly influenced by the strength of an operator, the problem of over-tightness or poor sealing is easy to occur, the cooling medium introduced into the joint is fluid, leakage can be caused if the fluid joint is not sealed tightly, the service life of parts can be reduced due to over-tightness, and the leakage risk is increased.
Disclosure of Invention
The utility model discloses a solve the fluid coupling that is used for cold coil in the magnetic field stimulator among the prior art and appear tension easily or sealed not tight problem, provided a seal structure for fluid coupling, the axial seal through O type circle reaches sealed effect, guarantees fluid coupling connection's stability and reliability, reduces and reveals the risk.
In order to realize the purpose, the technical scheme of the utility model is that:
a sealing structure for a fluid joint, comprising an upper joint assembly and a lower joint assembly and an outer sleeve connecting the upper joint assembly and the lower joint assembly;
the joint upper assembly comprises a first connecting copper pipe and a first O-shaped ring sleeved on the first connecting copper pipe, and the joint lower assembly comprises a second connecting copper pipe and a second O-shaped ring positioned on the second connecting copper pipe;
one end of the first connecting copper pipe is inserted into the second connecting copper pipe, and a sealing structure is formed by the first O-shaped ring and the second O-shaped ring.
Furthermore, the first connecting copper pipe is of a three-section structure with a hollow inner part, and is sequentially provided with an insertion section, a protruding section and a connecting section, wherein the insertion section is provided with a first annular groove along the circumferential direction.
Furthermore, the second connecting copper pipe is a second-order stepped shaft and comprises a large-diameter section and a small-diameter section, an annular groove II is formed in the end face of the large-diameter section, and the O-shaped ring II is located in the annular groove II of the large-diameter section and abuts against the end face of the protruding section of the first connecting copper pipe;
a step hole is formed in the center of the second connecting copper pipe, and the insertion section of the first connecting copper pipe is inserted into the large-diameter section of the second connecting copper pipe from the inlet of the step hole;
the O-shaped ring is positioned in the first insertion section annular groove and abuts against the inner wall surface of the step hole of the second connecting copper pipe.
Furthermore, the outer sleeve is divided into a front-section outer sleeve fixed relative to the connecting copper pipe and a rear-section outer sleeve fixed relative to the connecting copper pipe, and the front-section outer sleeve and the rear-section outer sleeve are connected and fixed into a whole through threads;
the outer wall surface of the rear-section outer sleeve is provided with scales.
Furthermore, the connecting section of the first connecting copper pipe and the small-diameter section of the second connecting copper pipe are communicated with pipelines.
The utility model has the advantages that:
the utility model provides a O type circle one is in the state of deformation between insertion section and step hole wall, reach the sealed effect of circumference, and simultaneously, O type circle two produces the deformation back between big footpath section and bulge section terminal surface, formed the secondary end face seal after that, so, utilize O type circle ingeniously to reach the dual effect of circumference seal and terminal surface density, the sealed effect of fluid coupling has further been guaranteed, and close the degree of depth soon through the control thread, reduced because of processing and the influence of human operation factor to sealed effect.
Drawings
Fig. 1 is a schematic view of a sealing structure for a fluid connector according to the present invention.
Fig. 2 is a schematic diagram of a seal structure for a fluid connector according to the present invention in the direction P in fig. 1.
Fig. 3 is a schematic view of a sealing structure for a fluid connector according to the present invention, in which an upper connector assembly and a lower connector assembly are separated from each other.
Fig. 4 is a schematic view of a first connecting copper pipe in a sealing structure for a fluid connector according to the present invention.
Fig. 5 is a schematic view of a second copper pipe connected to the sealing structure of the fluid connector according to the present invention.
The reference numbers in the drawings are as follows:
1 is for connecting copper pipe one, 101 is the insertion section, 102 is the bulge section, 103 is the linkage segment, 2 is O type circle one, 3 is connecting copper pipe two, 301 is the major diameter section, 302 is the minor diameter section, 4 is O type circle two, 5 is the anterior segment outer tube, 6 is the back end outer tube, 7 is the pipeline.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 5, a sealing structure for a fluid coupling includes a coupling upper assembly and a coupling lower assembly and an outer sleeve connecting the coupling upper assembly and the coupling lower assembly;
the joint upper assembly comprises a first connecting copper pipe 1 and a first O-shaped ring 2 sleeved on the first connecting copper pipe 1, and the joint lower assembly comprises a second connecting copper pipe 3 and a second O-shaped ring 4 positioned on the second connecting copper pipe 3;
one end of the first connecting copper pipe 1 is inserted into the second connecting copper pipe 3, and a sealing structure is formed by the first O-shaped ring 2 and the second O-shaped ring 4.
In this embodiment, the first connecting copper pipe 1 is a three-section structure with a hollow interior, and includes an insertion section 101, a protruding section 102, and a connecting section 103 in sequence, and the insertion section 101 is provided with a first annular groove along the circumferential direction.
In the embodiment, the second connecting copper pipe 3 is a second-order stepped shaft and comprises a large-diameter section 301 and a small-diameter section 302, an annular groove II is formed in the end surface of the large-diameter section 301, and the O-shaped ring II 4 is positioned in the annular groove II of the large-diameter section 301 and abuts against the end surface of the protruding section 102 of the first connecting copper pipe 1;
a step hole is formed in the center of the second connecting copper pipe 3, and the insertion section 101 of the first connecting copper pipe 1 is inserted into the large-diameter section 301 of the second connecting copper pipe 3 from the inlet of the step hole;
the O-shaped ring I2 is positioned in the first annular groove of the insertion section 101 and abuts against the inner wall surface of the step hole of the second connecting copper pipe 3.
In the embodiment, the outer sleeve is divided into a front-section outer sleeve 5 fixed relative to the first connecting copper pipe 1 and a rear-section outer sleeve 6 fixed relative to the second connecting copper pipe 3, and the front-section outer sleeve 5 and the rear-section outer sleeve 6 are connected and fixed into a whole through threads; in addition, the outer wall surface of the rear-section outer sleeve 6 is provided with scales, so that an operator can observe the scales from the outside conveniently and judge whether the screws are fixed in place or not according to the scale prompt.
In this embodiment, the connecting section 103 of the first connecting copper pipe 1 and the small diameter section 302 of the second connecting copper pipe 3 are both communicated with a pipeline 7 for receiving a cooling medium.
Referring to fig. 3 again, in the initial state, the O-ring 2 of the present invention is located in the first annular groove of the insertion section 101, when the upper assembly of the connector is inserted into the lower assembly of the connector, referring to fig. 1 again, the O-ring 2 is pressed against the inner wall surface of the stepped hole and extends into the stepped hole after being pressed by the stepped hole of the connecting copper tube two 3, and meanwhile, the O-ring 4 located in the second annular groove of the large diameter section 301 is pressed by the end surfaces of the large diameter section 301 and the protruding section 102 along with the screwing action of the screw thread between the front section outer sleeve 5 and the rear section outer sleeve 6, on one hand, the O-ring 2 is in a deformed state between the insertion section 101 and the wall surface of the stepped hole to achieve the effect of circumferential sealing, and on the other hand, after the O-ring two 4 starts to deform between the end surfaces of the large diameter section 301 and the protruding section 102, a secondary end surface sealing, the two parts form a sealing structure of the fluid joint together, so that the sealing effect is ensured; it should be noted that the O-ring is an O-ring commonly used in industry, and the external force required for elastic deformation is small, and when the screw thread between the front section outer sleeve 5 and the rear section outer sleeve 6 is screwed, according to the pre-designed scale on the outer wall surface of the rear section outer sleeve 6, the O-ring can be prevented from being damaged due to over-tightening, and the stability of sealing connection and the reliability of operation are ensured.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, so that equivalent changes and modifications made according to the structure, characteristics and principles of the present invention are all included in the scope of the present invention.
Claims (5)
1. A sealing structure for a fluid coupling comprising an upper coupling assembly and a lower coupling assembly and an outer sleeve connecting the upper coupling assembly and the lower coupling assembly;
the upper joint component comprises a first connecting copper pipe (1) and a first O-shaped ring (2) sleeved on the first connecting copper pipe (1), and the lower joint component comprises a second connecting copper pipe (3) and a second O-shaped ring (4) positioned on the second connecting copper pipe (3);
one end of the first connecting copper pipe (1) is inserted into the second connecting copper pipe (3) and forms a sealing structure together through the first O-shaped ring (2) and the second O-shaped ring (4).
2. The sealing structure for the fluid joint according to claim 1, wherein the first connecting copper pipe (1) is of a three-section structure with a hollow inner part, and is sequentially provided with an insertion section (101), a protruding section (102) and a connecting section (103), and the insertion section (101) is provided with a first annular groove along the circumferential direction.
3. The sealing structure for the fluid joint according to claim 2, wherein the second connecting copper pipe (3) is a two-step stepped shaft and comprises a large-diameter section (301) and a small-diameter section (302), an annular groove II is formed in the end surface of the large-diameter section (301), and the O-ring II (4) is positioned in the annular groove II of the large-diameter section (301) and abuts against the end surface of the protruding section (102) of the first connecting copper pipe (1);
a step hole is formed in the center of the second connecting copper pipe (3), and the insertion section (101) of the first connecting copper pipe (1) is inserted into the large-diameter section (301) of the second connecting copper pipe (3) from the inlet of the step hole;
the O-shaped ring I (2) is positioned in the annular groove I of the insertion section (101) and abuts against the inner wall surface of the step hole of the connecting copper pipe II (3).
4. The sealing structure for the fluid connector according to claim 1, wherein the outer sleeve is divided into a front section outer sleeve (5) fixed relative to the first connecting copper pipe (1) and a rear section outer sleeve (6) fixed relative to the second connecting copper pipe (3), and the front section outer sleeve (5) and the rear section outer sleeve (6) are connected and fixed into a whole through threads;
the outer wall surface of the rear-section outer sleeve (6) is provided with scales.
5. A sealing structure for fluid joints according to claim 1, wherein the connecting section (103) of the first connecting copper pipe (1) and the small diameter section (302) of the second connecting copper pipe (3) are communicated with a pipeline (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022101223.0U CN213576121U (en) | 2020-09-23 | 2020-09-23 | Sealing structure for fluid joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022101223.0U CN213576121U (en) | 2020-09-23 | 2020-09-23 | Sealing structure for fluid joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213576121U true CN213576121U (en) | 2021-06-29 |
Family
ID=76576949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022101223.0U Active CN213576121U (en) | 2020-09-23 | 2020-09-23 | Sealing structure for fluid joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213576121U (en) |
-
2020
- 2020-09-23 CN CN202022101223.0U patent/CN213576121U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 455000 Second Floor of No.6 Building of Torch Pioneer Park, West Section of Yangtze River Avenue, Anyang High-tech Zone, Henan Province Patentee after: Sidic health care industry development Co.,Ltd. Address before: 455000 Second Floor of No.6 Building of Torch Pioneer Park, West Section of Yangtze River Avenue, Anyang High-tech Zone, Henan Province Patentee before: Henan Huibo Shenfang Intelligent Rehabilitation Equipment Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |