CN111098880B - Integrated normally closed unhooking air pipe connector - Google Patents
Integrated normally closed unhooking air pipe connector Download PDFInfo
- Publication number
- CN111098880B CN111098880B CN201811267556.1A CN201811267556A CN111098880B CN 111098880 B CN111098880 B CN 111098880B CN 201811267556 A CN201811267556 A CN 201811267556A CN 111098880 B CN111098880 B CN 111098880B
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- valve rod
- valve body
- sealing
- valve
- air pipe
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- 238000007789 sealing Methods 0.000 claims abstract description 78
- 238000000034 method Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/10—Mounting of the couplings on the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Valve Housings (AREA)
Abstract
The invention provides an integrated normally-closed unhooking air pipe connector which comprises a sealing ring, a valve body, a valve rod, a sealing bolt, a sealing gasket and a spring part, wherein the sealing ring, the valve body, the valve rod, the sealing bolt, the sealing gasket and the spring part are integrated with a main air pipe connector and then are arranged on a hook body. The sealing ring is arranged at the front part of the valve rod, the sealing gasket is arranged in the sealing bolt, the valve rod is arranged inside the valve body and can slide inside the valve body after being pressed, the sealing bolt is connected with the rear part of the valve rod through threads, the sealing bolt and the valve rod are propped against the valve body together with the sealing gasket under the action of the spring, and the spring is arranged between the sealing bolt and the main air pipe connector. According to the scheme, the valve body, the hook body and the positioning holes of the main air pipe connector are installed, and the installation positioning precision of the unhooked air pipe connector is improved through hole shaft matching; meanwhile, the length of the guide section of the valve body and the valve rod is prolonged through the rear-mounted spring, and the stability of the valve rod is further improved.
Description
Technical Field
The invention relates to a uncoupling air duct connector, in particular to an integrated normally-closed uncoupling air duct connector, and belongs to the technical field of automatic couplers of railway vehicles.
Background
The uncoupling duct connector can realize the uncoupling duct communication of two mutually connected coupler hooks. In order to realize the automatic unhooking function of the automatic car coupler of the rail transit car, when a unhooking instruction of one motor train unit is sent, the car body supplies air to the unhooking air pipes, the unhooking air pipes are respectively connected with the unhooking air pipe connectors and the unhooking air cylinders, compressed air respectively enters the unhooking air cylinders and the unhooking air pipe connectors through the unhooking air pipes, and then enters the unhooking air cylinders of the other motor train unit through the unhooking air pipe connectors, and the unhooking air cylinders of the two motor train units act simultaneously under the action of compressed air to realize automatic unhooking.
The normally closed uncoupling duct connector has two general types, namely normally closed type and straight type, and is widely applied to rail transit automatic couplers of motor train units and the like because the normally closed uncoupling duct connector has an automatic locking function.
The normally closed unhooking air pipe connector in the prior art is an independent unhooking air pipe connector, consists of a sealing ring, a valve rod, a spring, a sealing bolt, a sealing gasket, a valve body and the like, and is connected with a hook body through threads on the valve body. When the two automatic couplers are connected, the sealing ring and the valve rod are extruded, the spring is compressed, the bolt drives the sealing gasket to be separated from the valve body, and the uncoupling air passage conduction of the two automatic couplers is realized; when the automatic coupler is unhooked, the sealing ring and the valve rod are not pressed, and the bolt drives the sealing gasket to contact with the valve body under the action of the ring spring, so that the automatic locking of the unhooked air path is realized. In the practical application process, because the threaded connection between the valve body and the hook body can not be accurately positioned, the contact guiding section of the valve rod and the valve body is shorter, the clamping stagnation condition between the valve rod and the hook body and between the valve rod and the valve body often occurs, and the valve rod can not be ejected after unhooking. Therefore, the prior art has the defect that the valve rod is easy to clamp.
Disclosure of Invention
Aiming at the technical problems, the invention provides the integrated normally-closed unhooking air pipe connector, which has high reliability, no clamping stagnation and simpler assembly method and more convenient maintenance compared with the prior art through improving the structure of the connector.
The technical scheme for solving the technical problems is as follows: the integrated normally closed unhooking air pipe connector comprises a sealing ring, a valve body, a valve rod, a sealing bolt, a sealing gasket and a spring; the valve body is arranged on the main air pipe connector, the valve body is provided with a cavity with two ends communicated in the length direction, and a port, connected with the hook body, of the valve body is inserted into the valve rod;
the valve rod is provided with a valve rod cavity arranged along the length direction, an opening is formed in the end part of the valve rod, which is positioned outside the valve body, and is communicated with the valve rod cavity, a through hole is formed in the side wall of the other end of the valve rod, and the through hole is communicated with the valve rod cavity;
The sealing ring is embedded in the opening of the end part of the valve rod, which is positioned at the outer side of the valve body, the sealing gasket is arranged at the end part of the valve rod inserted in the valve body through the sealing bolt, and the outer side of the sealing bolt is propped against a spring limiting boss arranged on the inner wall of the valve body extending connection cavity through the spring;
the other end of the valve body, which is opposite to the mounting valve rod, is connected with a compressed air pipeline through an extension connecting cavity and a threaded joint.
According to the integrated normally-closed unhooking air pipe connector, the end face of the valve body, which is in contact with the sealing gasket, is an arc transition face, so that the sealing performance of the sealing gasket and the valve body is improved.
In the integrated normally-closed unhooking air pipe connector, the end part of the valve rod, which is arranged in the valve body, is provided with a sealing bolt mounting hole, the sealing bolt is arranged in the sealing bolt mounting hole, and the sealing bolt is embedded with the sealing gasket to prop against the arc-shaped transition surface on the end face of the valve body.
In the integrated normally-closed unhooking air pipe connector, the diameter from the through hole of the side wall of the valve rod to the section of the valve rod at the end part of the valve rod, on which the sealing bolt is arranged, is smaller than the diameter of other positions of the valve rod.
In the integrated normally-closed unhooking air pipe connector, the O-shaped ring groove is formed in the inner wall of the valve body, and the valve body is in sealing fit with the valve rod through the O-shaped ring in the O-shaped ring groove.
Further, in the integrated normally closed unhooking air pipe connector, in order to improve the air flux of the valve rod, the through holes are perpendicular to the cavity of the valve rod, and two cross perpendicular through holes are formed in the valve rod.
The integrated normally-closed unhooking air pipe connector has the advantages that the valve rod is inserted into the cavity of the valve body by adopting clearance fit, so that the valve rod can be ensured to normally stretch in the valve body, the diameter of the inner cavity of the valve body is prevented from being too small, and the resistance to the valve rod is increased.
The integrated normally-closed unhooking air pipe connector is characterized in that the valve body is connected with the extension connecting cavity through the splicing fixing structure, and an O-shaped sealing ring is arranged between the valve body and the extension connecting cavity.
According to the integrated normally-closed unhooking air pipe connector, the length of the valve body is 6-8 times of the telescopic length of the valve rod, and the stability of the valve rod action is further improved by increasing the length of the guide section of the valve body to the valve rod.
A coupler comprises a coupler body, a main air pipe connector and an integrated normally closed uncoupling air pipe connector, wherein the main air pipe connector and the integrated normally closed uncoupling air pipe connector are arranged on the coupler body.
According to the application, through improvement of the structural scheme, the unhooking air pipe connector has a locking function, and the traditional unhooking air pipe connector does not have the locking function; compared with the main air duct connector in the prior art, the air duct connector has the functions of connecting and locking an air duct, but the functional requirements can be met by arranging a group of springs in the unhooking air duct connector, the complex performance of the structure is reduced, the structure is simple and compact, and the reliability is higher. The connecting part sealing device and the locking part sealing device of the scheme of the application are arranged on two parts which are fixedly connected, while the connecting part sealing device and the locking part sealing device of the scheme of the main air pipe connector of the prior art are arranged on two parts which are not related to each other; the scheme of the application has the advantages of better action consistency of the connecting part and the locking part, simple structure and good reliability. In addition, compared with the unhooking air pipe connector in the prior art, the unhooking air pipe connector is provided with the valve body, and the valve body is matched with the hook body and the main air pipe connector through hole shafts, so that the alignment of the unhooking air pipe connector mounting hole on the main air pipe connector and the unhooking air pipe connector mounting hole on the hook body can be ensured, and the valve rod is prevented from being blocked in the moving process. The prior art scheme does not have the structural design, and the valve rod is easy to be blocked, so that the normal use of the hook body is influenced.
The invention has the beneficial effects that: according to the scheme, the valve body, the hook body and the positioning holes of the main air pipe connector are installed, and the installation positioning precision of the unhooked air pipe connector is improved through hole shaft matching; meanwhile, the length of the guide section of the valve body and the valve rod is prolonged through the rear-mounted spring, and the stability of the valve rod is further improved. The invention overcomes the defect that the prior proposal is easy to generate clamping stagnation in the test and practical application process, and the assembly method is simpler and more convenient to maintain than the prior art.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an end view schematic of FIG. 1;
FIG. 3 is a schematic partial cross-sectional view of the present invention;
FIG. 4 is a schematic perspective view of the present invention;
FIG. 5 is a schematic view in section A-A of FIG. 2;
FIG. 6 is a schematic view of the present invention mounted on a hook body;
FIG. 7 is a schematic diagram of the coupling state of the present invention after coupling of the coupler.
Detailed Description
Example 1
The embodiment provides a coupler, which comprises a coupler body, a main air pipe connector and an integrated normally closed uncoupling air pipe connector, wherein the main air pipe connector and the integrated normally closed uncoupling air pipe connector are arranged on the coupler body 7 after being integrated with the main air pipe connector 8, the structure is as shown in fig. 1-7, and the normally closed uncoupling air pipe connector comprises a sealing ring 1, a valve body 2, a valve rod 3, a sealing bolt 4, a sealing gasket 5 and a spring 6; the valve body 2 is arranged on the main air pipe connector, the valve body 2 is provided with a cavity with two ends communicated in the length direction, and a port of the valve body 2 connected with the hook body 7 is inserted into the valve rod 3; the valve rod 3 is provided with a valve rod cavity arranged along the length direction, the end part of the valve rod 3 positioned outside the valve body 2 is provided with an opening which is communicated with the valve rod cavity, the side wall of the other end of the valve rod 3 is provided with a through hole, and the through hole is communicated with the valve rod cavity; the end opening of the valve rod 3 positioned at the outer side of the valve body 2 is embedded with a sealing ring 1, the end of the valve rod 3 inserted in the valve body 2 is provided with a sealing gasket 5 through a sealing bolt 4, and the outer side of the sealing bolt 4 is propped against a boss arranged on the inner wall of the extension connecting cavity 10 of the valve body 2 through a spring 6; the other end of the valve body 2, opposite the mounting valve stem 3, is connected to a compressed air line 9 by means of an extension connection chamber 10 and a threaded joint 11.
The end surface of the valve body 2 contacted with the sealing gasket 5 is an arc transition surface; the end part of the valve rod 3, which is arranged in the valve body 2, is provided with a sealing bolt mounting hole, a sealing bolt 4 is arranged in the sealing bolt mounting hole, and a sealing gasket 5 is embedded on the sealing bolt 4 to prop against an arc-shaped transition surface on the end surface of the valve body 2. The diameter of the section of the valve stem 3 from the through hole of the side wall of the valve stem 3 to the end of the valve stem 3 where the seal bolt 4 is mounted is smaller than the diameter of the other positions of the valve stem 3. An O-shaped ring groove is formed in the inner wall of the valve body 2, and the valve body 2 is in sealing fit with the valve rod 3 through an O-shaped ring in the O-shaped ring groove. The through holes are arranged vertically to the cavity of the valve rod 3, and two crossed and vertical through holes are arranged on the valve rod 3; the length of the valve body is 7 times of the telescopic length of the valve rod, and the stability of the valve rod action is further improved by increasing the length of the guide section of the valve body to the valve rod.
When the coupler is not connected, the sealing bolt 4 and the sealing gasket 5 are in contact with the valve body 2 under the action of the spring 6, so that the uncoupling compressed air cannot pass through the uncoupling air pipe connector, and the uncoupling air pipe connector is locked. After the coupler is connected, the sealing ring 1 and the valve rod 3 are pressed to drive the sealing bolt 4 and the sealing gasket 5 to move backwards, and the sealing bolt is separated from the valve body 2, so that the uncoupling air pipe connector is unlocked; when the car body supplies air to the uncoupling air pipe, compressed air can enter the uncoupling air cylinder of another motor car unit through the uncoupling air pipe connector, so that the car coupler can be automatically uncocked.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (7)
1. An integrated normally closed unhooking air pipe connector comprises a sealing ring (1), a valve body (2), a valve rod (3), a sealing bolt (4), a sealing gasket (5) and a spring (6); the method is characterized in that:
the valve body (2) is arranged on the main air pipe connector, the valve body (2) is provided with a cavity with two ends communicated in the length direction, and a port, connected with the hook body (7), of the valve body (2) is inserted into the valve rod (3);
The valve rod (3) is provided with a valve rod cavity arranged along the length direction, an opening is formed in the end part of the valve rod (3) positioned outside the valve body (2) and communicated with the valve rod cavity, a through hole is formed in the side wall of the other end of the valve rod (3), and the through hole is communicated with the valve rod cavity;
The sealing gasket is characterized in that the sealing ring (1) is embedded in an opening at the end part of the valve rod (3) positioned at the outer side of the valve body (2), the sealing gasket (5) is arranged at the end part of the valve rod (3) inserted in the valve body (2) through the sealing bolt (4), and the outer side of the sealing bolt (4) is abutted against a boss arranged on the inner wall of the extension connecting cavity (10) of the valve body (2) through the spring (6);
the other end of the valve body (2) opposite to the mounting valve rod (3) is connected with a compressed air pipeline (9) through an extension connecting cavity (10) and a threaded joint (11).
2. The integrated normally closed unhooking air duct connector of claim 1, wherein: the end face of the valve body (2) contacted with the sealing gasket (5) is an arc transition face.
3. The integrated normally closed unhooking air duct connector of claim 2, wherein: the end part of the valve rod (3) arranged in the valve body (2) is provided with a sealing bolt mounting hole, the sealing bolt (4) is arranged in the sealing bolt mounting hole, and the sealing gasket (5) is embedded on the sealing bolt (4) to prop against an arc transition surface on the end face of the valve body (2).
4. The integrated normally closed unhooking air duct connector of claim 1, wherein: the diameter of the section of the valve rod (3) from the through hole of the side wall of the valve rod (3) to the end part of the valve rod (3) where the sealing bolt (4) is arranged is smaller than the diameter of other positions of the valve rod (3).
5. The integrated normally closed unhooking air duct connector of claim 1, wherein: an O-shaped ring groove is formed in the inner wall of the valve body (2), and the valve body (2) is in sealing fit with the valve rod (3) through an O-shaped ring in the O-shaped ring groove.
6. The integrated normally closed unhooking air duct connector of claim 1, wherein: the through holes are perpendicular to the cavity of the valve rod (3), and two cross perpendicular through holes are formed in the valve rod (3).
7. A coupler, characterized in that: comprising a coupling body, a main air duct connector mounted on said coupling body and an integrated normally closed uncoupling air duct connector according to any of the preceding claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267556.1A CN111098880B (en) | 2018-10-29 | 2018-10-29 | Integrated normally closed unhooking air pipe connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267556.1A CN111098880B (en) | 2018-10-29 | 2018-10-29 | Integrated normally closed unhooking air pipe connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111098880A CN111098880A (en) | 2020-05-05 |
| CN111098880B true CN111098880B (en) | 2024-05-24 |
Family
ID=70419703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811267556.1A Active CN111098880B (en) | 2018-10-29 | 2018-10-29 | Integrated normally closed unhooking air pipe connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111098880B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86202396U (en) * | 1986-04-01 | 1986-12-10 | 曲洪信 | Automatic airpipe-connecting device for train |
| JP2012183974A (en) * | 2011-03-08 | 2012-09-27 | Kobelco Logistics Ltd | Yard rail carriage parking brake device |
| CN104358953A (en) * | 2014-11-04 | 2015-02-18 | 南车戚墅堰机车车辆工艺研究所有限公司 | Air hose connector for tight-lock coupler |
| CN204284743U (en) * | 2014-11-04 | 2015-04-22 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of tight lock couplers air hose coupling |
| CN105015573A (en) * | 2015-07-24 | 2015-11-04 | 北京铁路局丰台车辆段 | Railway freight car wind path automatic picking off and coupling up device |
| CN204978691U (en) * | 2015-07-24 | 2016-01-20 | 北京铁路局丰台车辆段 | Automatic device of seting out of railway freight car |
| CN206691127U (en) * | 2016-12-22 | 2017-12-01 | 四川汇智众创科技有限公司 | Railway wagon brake flexible pipe connects extension and plucks solution device automatically |
| JP3214456U (en) * | 2017-10-30 | 2018-01-18 | 有限会社小澤空調機器製作所 | Ventilation device |
| CN108216292A (en) * | 2016-12-22 | 2018-06-29 | 四川汇智众创科技有限公司 | Railway wagon brake hose connects extension and plucks solution device automatically |
| CN209064105U (en) * | 2018-10-29 | 2019-07-05 | 常州中车铁马科技实业有限公司 | The normally closed uncoupling air hose coupling of integrated form and its hitch |
-
2018
- 2018-10-29 CN CN201811267556.1A patent/CN111098880B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86202396U (en) * | 1986-04-01 | 1986-12-10 | 曲洪信 | Automatic airpipe-connecting device for train |
| JP2012183974A (en) * | 2011-03-08 | 2012-09-27 | Kobelco Logistics Ltd | Yard rail carriage parking brake device |
| CN104358953A (en) * | 2014-11-04 | 2015-02-18 | 南车戚墅堰机车车辆工艺研究所有限公司 | Air hose connector for tight-lock coupler |
| CN204284743U (en) * | 2014-11-04 | 2015-04-22 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of tight lock couplers air hose coupling |
| CN105015573A (en) * | 2015-07-24 | 2015-11-04 | 北京铁路局丰台车辆段 | Railway freight car wind path automatic picking off and coupling up device |
| CN204978691U (en) * | 2015-07-24 | 2016-01-20 | 北京铁路局丰台车辆段 | Automatic device of seting out of railway freight car |
| CN206691127U (en) * | 2016-12-22 | 2017-12-01 | 四川汇智众创科技有限公司 | Railway wagon brake flexible pipe connects extension and plucks solution device automatically |
| CN108216292A (en) * | 2016-12-22 | 2018-06-29 | 四川汇智众创科技有限公司 | Railway wagon brake hose connects extension and plucks solution device automatically |
| JP3214456U (en) * | 2017-10-30 | 2018-01-18 | 有限会社小澤空調機器製作所 | Ventilation device |
| CN209064105U (en) * | 2018-10-29 | 2019-07-05 | 常州中车铁马科技实业有限公司 | The normally closed uncoupling air hose coupling of integrated form and its hitch |
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| CN111098880A (en) | 2020-05-05 |
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Effective date of registration: 20220507 Address after: 266111 South Side of Xinye Road and West Side of Herong Road, Qingdao Hi-tech Industrial Development Zone, Shandong Province Applicant after: CRRC Brake System Co.,Ltd. Address before: 213000 No.19 Shunyuan Road, Xuejia Town, Xinbei District, Changzhou City, Jiangsu Province Applicant before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Applicant before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
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