CN222503006U - A secondary locking device for quick connector - Google Patents
A secondary locking device for quick connector Download PDFInfo
- Publication number
- CN222503006U CN222503006U CN202420020816.XU CN202420020816U CN222503006U CN 222503006 U CN222503006 U CN 222503006U CN 202420020816 U CN202420020816 U CN 202420020816U CN 222503006 U CN222503006 U CN 222503006U
- Authority
- CN
- China
- Prior art keywords
- locking
- quick connector
- sleeve
- sealing
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 88
- 210000004907 gland Anatomy 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
本申请公开了一种快速接头二次锁紧装置，包括：锁紧螺母和密封组件；密封组件一端插入快速接头内，另一端插入锁紧螺母内，密封组件包括密封套和锁紧套；锁紧螺母扣接在密封组件背向快速接头的一端，且与快速接头螺纹连接；密封套插入锁紧套内一端伸出锁紧套，并沿着径向方向向外延伸；向外延伸的部分一侧抵压在快速接头内，另一侧与锁紧套抵接；锁紧套的一端插入快速接头内，另一端插入所述锁紧螺母内，锁紧套包括沿着轴向设置的连接部和锁紧部。本申请通过密封组件实现其密封性能，锁紧螺母进行第一次锁紧，密封套伸出锁紧套的一端与快速接头的内壁抵接，实现密封性能，锁紧套通过锁紧螺母抵压在密封套外，实现密封性能的同时进行第二次锁紧。
The present application discloses a secondary locking device for a quick connector, comprising: a locking nut and a sealing assembly; one end of the sealing assembly is inserted into the quick connector, and the other end is inserted into the locking nut, the sealing assembly comprises a sealing sleeve and a locking sleeve; the locking nut is buckled at the end of the sealing assembly facing away from the quick connector, and is threadedly connected to the quick connector; the sealing sleeve is inserted into the locking sleeve, one end of which extends out of the locking sleeve and extends outward in the radial direction; one side of the outwardly extending part presses against the quick connector, and the other side abuts against the locking sleeve; one end of the locking sleeve is inserted into the quick connector, and the other end is inserted into the locking nut, and the locking sleeve comprises a connecting portion and a locking portion arranged along the axial direction. The present application realizes its sealing performance through the sealing assembly, the locking nut performs the first locking, one end of the sealing sleeve extends out of the locking sleeve and abuts against the inner wall of the quick connector to achieve the sealing performance, and the locking sleeve is pressed against the outside of the sealing sleeve through the locking nut to achieve the sealing performance while performing the second locking.
Description
Technical Field
The application relates to a secondary locking device of a quick connector, and belongs to the technical field of quick connectors.
Background
Existing quick connectors typically use ferrules to form a leak-proof seal. When the nut of the fitting is tightened, the ferrule is compressed between the nut and the receiving fitting. Due to this compression, the ferrule effectively bites into the tube, forming a firm grip and tight seal.
However, this sealing method has the disadvantage that any vibration, pulsation, thermal shock or side load on the fitting may cause the lock nut to loosen after a long period of use, thereby resulting in a loss of sealing performance of the ferrule and reducing the service life of the quick connector.
Disclosure of utility model
According to one aspect of the application, a secondary locking device of a quick connector is provided, which is used for solving the problem that the prior quick connector is easy to loosen when used for a long time, so that the sealing function is lost, and the service life of the quick connector is shortened. The specific scheme is as follows:
a quick connector secondary locking device comprises a locking nut and a sealing component;
One end of the sealing component is inserted into the quick connector, the other end of the sealing component is inserted into the locking nut, and the sealing component comprises a sealing sleeve and a locking sleeve;
the locking nut is buckled at one end of the sealing component, which is opposite to the quick connector, and is in threaded connection with the quick connector;
The sealing sleeve is inserted into the locking sleeve, one end of the sealing sleeve extends out of the locking sleeve and extends outwards along the radial direction, one side of the outwards extending part of the sealing sleeve is propped against the inner wall of the quick connector, and the other side of the outwards extending part of the sealing sleeve is propped against the locking sleeve;
One end of the locking sleeve is inserted into the quick connector, the other end of the locking sleeve is inserted into the locking nut, and the locking sleeve comprises a connecting part and a locking part which are arranged along the axial direction;
One end of the connecting part faces the quick connector, and the other end of the connecting part is connected with a locking part;
The locking part extends outwards along the radial direction of the connecting part, one end of the locking part and one end of the connecting part are lapped at the end part of one end of the quick connector, which faces the locking nut, and the locking part is propped against the inner side of the locking nut.
Preferably, the sealing sleeve and the locking sleeve are elastic sealing elements.
Preferably, the locking part comprises a plurality of locking teeth which are arranged at intervals;
The locking teeth are uniformly arranged at the end part of the sealing sleeve, the locking teeth are circumferentially arranged along the circumferential side of the sealing sleeve, one end of each locking tooth is fixedly connected with the connecting part, and the other end of each locking tooth faces away from the connecting part.
Preferably, the cross section of the locking tooth is in a trapezoid structure.
Preferably, the sum of the length of the connecting portion and the thickness of the portion of the sealing sleeve extending outwards is the same as the length of the quick connector towards the connecting end of the locking nut.
Preferably, the outer dimension of the portion of the sealing sleeve extending outwards is the same as the outer dimension of the connecting portion.
Preferably, the external dimension of the locking part is smaller than the internal diameter of the locking nut, and the length of the locking part is smaller than the height of the locking nut.
Preferably, the length of the sealing sleeve is greater than the length of the locking sleeve.
The application has the beneficial effects that:
The secondary locking device provided by the application comprises a sealing component and a locking nut, wherein the sealing performance of the secondary locking device is realized through the sealing component, and the first locking function of the secondary locking device is realized through the locking nut;
The locking sleeve is sealed and locked through the locking part, specifically, the locking nut rotates, the locking teeth are close to the axis of the locking sleeve in a gathering way, adjacent locking teeth are propped against each other, the aperture of an opening formed by one side of each locking tooth, which is contacted with the sealing sleeve, is reduced, the sealing sleeve is further tightly connected with a connecting pipe/connecting piece at one end of the locking nut, the sealing and locking effect is realized, and the locking teeth are clamped in the locking nut in a tooth shape towards one side of the locking nut, so that the locking function of the locking nut is further improved.
Drawings
FIG. 1 is a cross-sectional assembly view of a quick connector secondary locking device in accordance with one embodiment of the present application;
FIG. 2 is an exploded view of a secondary locking device for a quick connector according to one embodiment of the present application;
FIG. 3 is an exploded view of an exemplary embodiment of a secondary locking device for a quick connector and a quick connector according to the present application;
FIG. 4 is a schematic view of a lock nut of a secondary locking device of a quick connector according to an embodiment of the present application;
FIG. 5 is a schematic view of a locking sleeve of a secondary locking device of a quick connector according to an embodiment of the present application;
FIG. 6 is a top view of a second seal in a quick connector secondary locking device in accordance with one embodiment of the present application;
FIG. 7 is a schematic view of a first seal in a secondary locking device of a quick connector according to an embodiment of the present application;
List of parts and reference numerals:
The device comprises a 1-locking nut, a 2-locking sleeve, a 3-sealing sleeve, a 4-quick connector, 11-internal threads, a 21-connecting part, a 22-connecting ring, 23-locking teeth, 31-sealing rings and 32-connecting sleeves.
Detailed Description
The present application is described in detail below with reference to examples, but the present application is not limited to these examples.
A quick connector secondary locking device according to fig. 1-7, comprising a locking nut 1 and a sealing assembly;
The sealing component is inserted into the quick connector 4, one end of the sealing component is inserted into the quick connector 4, and the other end of the sealing component is inserted into the lock nut 1;
The locking nut 1 is buckled at one end of the sealing component far away from the quick connector and is in threaded connection with the outer side of the quick connector 4;
The sealing assembly comprises a sealing sleeve 3 and a locking sleeve 2, wherein the sealing sleeve 3 and the locking sleeve 2 are elastic sealing sleeves;
The sealing sleeve 3 is inserted into the locking sleeve 2, the sealing sleeve 3 extends out of the locking sleeve 2 towards one end of the quick connector 4, one end of the sealing sleeve 3 extending out of the locking sleeve 2 extends outwards along the radial direction, one side of the outwards extending part of the sealing sleeve 3 is abutted with the inner side of the quick connector 4, and the other side of the outwards extending part of the sealing sleeve 3 is abutted with the end part of the locking sleeve 2;
one end of the locking sleeve 2 is inserted into the quick connector 4, and the other end of the locking sleeve 2 is inserted into the locking nut 1.
In one embodiment of the present application, the sealing sleeve 3 has a specific structure that the sealing sleeve 3 includes a sealing ring 31 and a connecting sleeve 32 that are disposed along an axial direction, one side of the sealing ring 31 is fixedly connected with one end of the connecting sleeve 32, and the other side of the sealing ring 31 abuts against the inner side of the quick connector 4, the sealing ring 31 and the connecting sleeve 32 are integrally formed, the inner diameter of the sealing ring 31 is the same as the inner diameter of the connecting sleeve 32 in size, and the outer diameter of the sealing ring 31 is larger than the outer diameter of the connecting sleeve 32;
the length of the connecting sleeve 32 and the thickness of the sealing ring 31 are the same as the connecting length of the quick connector 4 towards one end of the lock nut 1;
the length of the connecting sleeve 32 is equal to the sum of the lengths of the connecting part 21 and the locking part;
In one embodiment of the present application, the locking sleeve 2 has a specific structure that the locking sleeve 2 includes a connecting portion 21 and a locking portion disposed along an axial direction;
The connecting part 21 is in a cylindrical structure, the inner diameter size of the connecting part 21 is slightly larger than the outer diameter size of the connecting sleeve 32, the thickness of the connecting part 21 is equal to the difference between the annular width of the sealing ring 31 and the thickness of the connecting sleeve 32, and when the end part of the connecting part 21 is abutted against one side of the sealing ring 31, which is opposite to the quick connector 4, the outer side surface of the connecting part 21 and the outer side surface of the sealing ring 31 are on the same surface;
One end of the locking part is fixedly connected with the connecting part 21, the locking part is positioned on the locking nut 1 and is abutted against the locking nut 1, the whole locking part is cylindrical, the inner diameter of the locking part is the same as the inner diameter of the connecting part 21, the outer diameter of the locking part is larger than the outer diameter of the connecting part 21, so that the whole locking part protrudes outwards along the radial direction of the connecting part 21, and when the locking part is installed, the part, which protrudes outwards, of the end, which is connected with the connecting part, of the locking part is lapped at the end part of the end, which is connected with the locking nut 1, of the quick connector 4;
The thickness of the outwards protruding locking part is the same as the thickness of one end of the quick connector 4 connected with the locking nut 1, so that the threaded connection of the locking nut 1 and the quick connector 4 is not influenced while sealing is realized;
The outer diameter of the locking part is slightly smaller than the inner diameter of the locking nut 1, so that the locking part is abutted with the locking nut 1 when being arranged in the locking nut 1;
in one embodiment of the present application, the specific structure of the locking portion is:
The locking part comprises a connecting ring 22 and a plurality of locking teeth 23 which are arranged at intervals, and the locking teeth 23 are uniformly and annularly arranged along the connecting ring 22;
The cross section of the locking teeth 23 is in a trapezoid structure, wherein the upper bottom of the trapezoid structure faces the inner side of the connecting ring 22, the upper bottom dimension of the trapezoid structure is larger than the lower bottom dimension, the top view of the locking teeth 23 is shown in fig. 6, a vortex-like shape is formed, the rotation direction is consistent with the thread direction of the locking nut 1, and when the locking nut is installed, the locking nut 1 rotates to enable the locking teeth 23 to be close to each other, so that sealing is achieved;
The ring width of the connecting ring 22 is equal to the sum of the thickness of one end of the quick connector 4 connected with the lock nut 1 and the thickness of the connecting part 21;
The inner diameter of the connecting ring 22 is the same as that of the connecting part 21, and the connecting ring, the locking teeth 23 and the connecting part 21 are integrally formed;
The thickness of the cylindrical structure integrally formed with the locking teeth 23 is the same as the ring width of the connecting ring 22;
The quick connector 4 is a conventional joint for pipes, one end of the quick connector 4 is connected with a pipeline connecting piece, the other end of the quick connector 4 is connected with a connecting pipeline/connecting piece, the connecting pipeline/connecting piece is inserted into the quick connector 4, the sealing sleeve 3 is sleeved at one end of the connecting pipeline/connecting piece, which is inserted into the quick connector 4, the end part of the sealing sleeve 3 is respectively propped against the inner wall of the quick connector 4 and the end part of the locking sleeve 2, the inner wall of the sealing sleeve 3 is propped against the connecting pipeline/connecting piece, the outer wall of the sealing sleeve 3 is propped against the inner wall of the locking sleeve 2, and then the locking nut 1 penetrates through the connecting pipeline/connecting piece to be in threaded connection with the quick connector 4, so that the whole sealing assembly is fixed in the quick connector 4.
In one embodiment of the application, one end of the lock nut 1 facing the quick connector 4 is provided with an internal thread matched with the external thread of the quick connector 4, and the nominal length of the internal thread is larger than the length of the locking part, so that the lock nut 1 is fastened outside the locking part and can be in threaded connection with the quick connector 4.
While the application has been described in terms of preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the scope of the application, and it is intended that the application is not limited to the specific embodiments disclosed.
Claims (8)
1. The secondary locking device of the quick connector is characterized by comprising a locking nut and a sealing assembly;
One end of the sealing component is inserted into the quick connector, the other end of the sealing component is inserted into the locking nut, and the sealing component comprises a sealing sleeve and a locking sleeve;
the locking nut is buckled at one end of the sealing component, which is opposite to the quick connector, and is in threaded connection with the quick connector;
The sealing sleeve is inserted into the locking sleeve, one end of the sealing sleeve extends out of the locking sleeve and extends outwards along the radial direction, one side of the outwards extending part of the sealing sleeve is propped against the inner wall of the quick connector, and the other side of the outwards extending part of the sealing sleeve is propped against the locking sleeve;
One end of the locking sleeve is inserted into the quick connector, the other end of the locking sleeve is inserted into the locking nut, and the locking sleeve comprises a connecting part and a locking part which are arranged along the axial direction;
One end of the connecting part faces the quick connector, and the other end of the connecting part is connected with a locking part;
The locking part extends outwards along the radial direction of the connecting part, one end of the locking part and one end of the connecting part are lapped at the end part of one end of the quick connector, which faces the locking nut, and the locking part is propped against the inner side of the locking nut.
2. A quick connector secondary locking device as claimed in claim 1 wherein the sealing boot and locking boot are elastomeric seals.
3. The quick connector secondary locking device as claimed in claim 1, wherein the locking portion comprises a plurality of locking teeth arranged at intervals;
The locking teeth are uniformly arranged at the end part of the sealing sleeve, the locking teeth are circumferentially arranged along the circumferential side of the sealing sleeve, one end of each locking tooth is fixedly connected with the connecting part, and the other end of each locking tooth faces away from the connecting part.
4. A quick connector secondary locking device as claimed in claim 3, wherein,
The cross section of the locking tooth is in a trapezoid structure.
5. A quick connector secondary locking device as claimed in claim 3 wherein the sum of the length of the connecting portion and the thickness of the outwardly extending portion of the gland is the same as the length of the quick connector towards the connecting end of the locking nut.
6. A quick connector secondary locking device as claimed in claim 3, wherein,
The external dimension of the part of the sealing sleeve extending outwards is the same as the external dimension of the connecting part.
7. A quick connector secondary locking device as claimed in claim 3 wherein the locking portion has a profile dimension less than the internal diameter of the locking nut and a length less than the height of the locking nut.
8. A quick connector secondary locking device as claimed in claim 1 wherein the length of the sealing boot is greater than the length of the locking boot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420020816.XU CN222503006U (en) | 2024-01-04 | 2024-01-04 | A secondary locking device for quick connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420020816.XU CN222503006U (en) | 2024-01-04 | 2024-01-04 | A secondary locking device for quick connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222503006U true CN222503006U (en) | 2025-02-18 |
Family
ID=94540546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420020816.XU Active CN222503006U (en) | 2024-01-04 | 2024-01-04 | A secondary locking device for quick connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222503006U (en) |
-
2024
- 2024-01-04 CN CN202420020816.XU patent/CN222503006U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4906973B1 (en) | Pipe fitting | |
| US2474319A (en) | Coupling for piping | |
| KR20110031762A (en) | Spiral corrugated pipe connector | |
| JP5269178B2 (en) | How to assemble pipe fittings | |
| CN105715879A (en) | Anti-looseness connection structure for pipeline | |
| CN222503006U (en) | A secondary locking device for quick connector | |
| JP4939826B2 (en) | How to assemble pipe fittings | |
| CN210003996U (en) | quick joint | |
| CN109073121A (en) | Attachment device for connecting pipe | |
| CN205402005U (en) | Snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring | |
| JPH0319434B2 (en) | ||
| CN205261064U (en) | Compressed air pipe connects | |
| CN205402002U (en) | Snap ring friction auto -lock connection structure is pressed to metal pipeline spiral ring | |
| US11761565B2 (en) | Clamp ring type metal sealgas pipe joint | |
| CN210770796U (en) | Pipe assembly with anti-drop sealing structure | |
| CN110107760B (en) | A bellows with socket self-locking function | |
| CN220379104U (en) | Waterproof ring for pipeline clamping connection | |
| CN219655483U (en) | Sealing connection structure between pipelines | |
| CN221880539U (en) | A bite-in fitting assembled on a metal pipe | |
| TWI831232B (en) | Device for preventing pipe joint of union nut from pipe disconnection | |
| CN212080486U (en) | A fire-fighting inner thread bundle | |
| CN216201330U (en) | Fastening structure for connecting corrugated pipes | |
| CN221727865U (en) | Municipal administration threading bellows convenient to assemble | |
| CN223242290U (en) | Pipe joint | |
| CN222823922U (en) | A metal steel pipe and corrugated hose connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |