CN203384536U - Quick-change connector - Google Patents
Quick-change connector Download PDFInfo
- Publication number
- CN203384536U CN203384536U CN201320440278.1U CN201320440278U CN203384536U CN 203384536 U CN203384536 U CN 203384536U CN 201320440278 U CN201320440278 U CN 201320440278U CN 203384536 U CN203384536 U CN 203384536U
- Authority
- CN
- China
- Prior art keywords
- joint pin
- tool joint
- supporting piece
- spring supporting
- valve core
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a quick-change connector which comprises a male connector, a female connector, a spring support block and a T-shaped valve core, wherein the spring support block is mounted in the inner cavity of the male connector; the T-shaped valve core is mounted in the inner cavity of the female connector and comprises a valve seat and a valve rod; the valve rod is sleeved with a return spring; the top end of the valve rod is inserted in the center hole of the spring support block; communicating gaps are formed in the circumference of the end, adjacent to the male connector, of the valve seat. When the spring support block is damaged, the return spring and the spring support block are carried away by liquid, the T-shaped valve core moves to the male connector, and the inner cavity of the male connector can be still communicated with that of the female connector through the communicating gaps after the T-shaped valve core is stopped by the inner wall of the male connector. The quick-change connector has a simple structure and reliable functions, avoids the phenomenon that a failure is caused because the quick-change connector is blocked and cannot return or fill oil after the spring support block is damaged. Furthermore, the strength of the spring support block is increased so as to prolong the service life of the spring support block.
Description
Technical field
The utility model relates to a kind of joint structure of quick mounting, is mainly used in being connected between flexible pipe and flexible pipe, or being connected between flexible pipe and hydraulic block.
Background technique
Quick release coupling as shown in Figure 1 and Figure 2, be comprised of tool joint pin 1, female joint 2, spring supporting piece 3, T-valve core 4, return spring 5, seal ring 6.Tool joint pin 1 is together by a threaded connection with female joint 2, and spring supporting piece 3 is arranged in the inner chamber of tool joint pin 1, and spacing by the limited step 1a of tool joint pin 1 inwall, to prevent tool joint pin 1, towards the direction away from female joint 2, moves.T-valve core 4 is arranged in the inner chamber of female joint 2, T-valve core 4 consists of valve seat 4a and valve rod 4b, valve seat 4a and female joint 2 are slidably connected and pass through seal ring 6 sealings, are set with return spring 5 on valve rod 4b, and the top of valve rod 4b is inserted in the center hole of spring supporting piece 3.The periphery of the center hole of spring supporting piece 3 is provided with liquid via hole 3a, and liquid via hole 3a is fan shaped borehole, and totally three and be circumference uniform distribution, between each fan shaped borehole 3a, by rib, connect, the width L of rib is 3mm, the root diameter (RD) φ of rib is 11mm.
As shown in Figure 1, when normal turn-off, return spring 5 is in Pre strained state, and the valve seat 4a outer wall of T-valve core 4 and the inwall of female joint 2 fit together, and seal ring 6 just in time is arranged on the faying surface of female joint 2 and valve seat 4a.As shown in Figure 3, when normal the use, T-valve core 4 moves down, and compression retracteding position spring 5, and liquid flows in the inner chamber of female joint 2 from top to bottom, then flows in the inner chamber of tool joint pin 1 through the fan shaped borehole 3a that is circumference uniform distribution on spring supporting piece 3.
Due to the rib insufficient strength between each fan shaped borehole 3a on spring supporting piece 3, in using process, be easy to damage; In the situation that spring supporting piece 3 damages, return spring 5 and spring supporting piece 3 are washed away by liquid, as shown in Figure 4, T-valve core 4 moves towards the direction of tool joint pin 1, and after being blocked by the inwall of tool joint pin 1, the inner chamber of the inner chamber of tool joint pin 1 and female joint 2 is because the valve seat 4a of T-valve core 4 blocks, and can't oil return or oiling, thus initiating failure.
The model utility content
The utility model is intended to solve the spring supporting piece damage after, quick release coupling is blocked and can't oil return, thus the problem of initiating failure.
For this reason, the technological scheme that the utility model adopts is: a kind of quick release coupling, comprise tool joint pin, female joint, spring supporting piece and T-valve core, described tool joint pin and female joint are together by a threaded connection, described spring supporting piece is arranged in the inner chamber of tool joint pin, and spacing by the limited step of tool joint pin inwall, to prevent tool joint pin, towards the direction away from female joint, move, described T-valve core is arranged in the inner chamber of female joint, the T-valve core consists of valve seat and valve rod, described valve seat and female joint are slidably connected and seal by seal ring, be set with return spring on described valve rod, the top of valve rod is inserted in the center hole of spring supporting piece, periphery at the center hole of spring supporting piece is provided with the liquid via hole, key is: described valve seat has the conducting breach near the periphery of the first end of public access, in the situation that the spring supporting piece damages, return spring and spring supporting piece are washed away by liquid, and the T-valve core moves towards the direction of tool joint pin, and, after being blocked by the inwall of tool joint pin, the inner chamber of tool joint pin and the inner chamber of female joint still can be by the conductings of described conducting breach.
Totally 3-5 of described conducting breach, and be the periphery of circumference uniform distribution at the close first end of public access of described valve seat.
Liquid via hole on described spring supporting piece is fan shaped borehole, and totally three and be circumference uniform distribution, the rib width L between each liquid via hole is 4mm, and the root diameter (RD) φ of rib is 13mm.
Beneficial effect: the utility model is simple in structure, reliable in function, in the situation that the spring supporting piece damages, the inner chamber of tool joint pin and the inner chamber of female joint still can be by the conductings of conducting breach, avoided after the spring supporting piece damages, quick release coupling is blocked and can't oil return or oiling, thus initiating failure; Further, by increasing the intensity of spring supporting piece, extended the working life of spring supporting piece.
The accompanying drawing explanation
Fig. 1 is the state of quick release coupling when normally closing before improving.
The worm's eye view that Fig. 2 is Fig. 1.
Fig. 3 is the state of the quick release coupling before improving when normally using.
The state that Fig. 4 is blocked without spring supporting piece and return spring the time for the quick release coupling before improving.
Fig. 5 is the state of quick release coupling when normally closing after improving.
The worm's eye view that Fig. 6 is Fig. 5.
Fig. 7 is the state of the quick release coupling still conducting without spring supporting piece and return spring time the after improving.
The structural representation that Fig. 8 is T-valve core in Fig. 5.
The worm's eye view that Fig. 9 is Fig. 8.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Quick release coupling shown in Fig. 5, Fig. 6, be comprised of tool joint pin 1, female joint 2, spring supporting piece 3, T-valve core 4, return spring 5 and seal ring 6.Tool joint pin 1 is together by a threaded connection with female joint 2, and the other end of tool joint pin 1 is provided with internal thread 1b.Spring supporting piece 3 is arranged in the inner chamber of tool joint pin 1, and spacing by the limited step 1a of tool joint pin 1 inwall, to prevent tool joint pin 1, towards the direction away from female joint 2, moves.T-valve core 4 is arranged in the inner chamber of female joint 2, T-valve core 4 consists of valve seat 4a and valve rod 4b, valve seat 4a and female joint 2 are slidably connected and pass through seal ring 6 sealings, be set with return spring 5 on valve rod 4b, the top of valve rod 4b is inserted in the center hole of spring supporting piece 3, in the periphery of the center hole of spring supporting piece 3, is provided with liquid via hole 3a.Be provided with limited step 4c on the valve seat 4a of T-valve core 4, to prevent that T-valve core 4 is towards skid off the inner chamber of female joint 2 away from the direction of tool joint pin 1, also can on the inwall of female joint 2, limited step be set, on the valve seat 4a of T-valve core 4, limited step is not set, plays equally and prevent that T-valve core 4 is towards skid off the effect of the inner chamber of female joint 2 away from the direction of tool joint pin 1.The above is identical with the structure before improvement, does not repeat them here, and difference is:
In conjunction with Fig. 7---shown in Fig. 9, at valve seat 4a, near the periphery of tool joint pin 1 one ends, have conducting breach A; At valve seat 4a, away from the periphery of tool joint pin 1 one ends, be complete rounded face, to guarantee that quick fixation structure is when normally closing, valve seat 4a still can fit together with the inwall of female joint 2 fully away from the periphery of an end of tool joint pin 1, to guarantee the reliability of sealing.In the situation that spring supporting piece 3 damages, return spring 5 and spring supporting piece 3 are washed away by liquid, as shown in Figure 7, there is no return spring 5 and spring supporting piece 3 in the fast-assembling interface.Now, T-valve core 4 moves towards the direction of tool joint pin 1, and, after being blocked by the inwall of tool joint pin 1, the inner chamber of the inner chamber of tool joint pin 1 and female joint 2 still can be by conducting breach A conducting.
Totally 4 of conducting breach A, be preferably 3-5, and be the periphery of circumference uniform distribution at close tool joint pin 1 one ends of valve seat 4a.
Liquid via hole 3a on spring supporting piece 3 is fan shaped borehole, and totally three and be circumference uniform distribution, the rib width L between each liquid via hole 3a is 4mm, and the root diameter (RD) φ of rib is 13mm.Shape and the quantity of liquid via hole 3a are not limited to above-mentioned form, as long as in the time of guaranteeing normal the use, the inner chamber of tool joint pin 1 and female joint 2 can be communicated with and get final product.
Claims (3)
1. a quick release coupling, comprise tool joint pin (1), female joint (2), spring supporting piece (3) and T-valve core (4), described tool joint pin (1) is together by a threaded connection with female joint (2), described spring supporting piece (3) is arranged in the inner chamber of tool joint pin (1), and spacing by the limited step (1a) of tool joint pin (1) inwall, to prevent tool joint pin (1), towards the direction away from female joint (2), move, described T-valve core (4) is arranged in the inner chamber of female joint (2), T-valve core (4) consists of valve seat (4a) and valve rod (4b), described valve seat (4a) is slidably connected with female joint (2) and passes through seal ring (6) sealing, be set with return spring (5) on described valve rod (4b), the top of valve rod (4b) is inserted in the center hole of spring supporting piece (3), periphery at the center hole of spring supporting piece (3) is provided with liquid via hole (3a), it is characterized in that: described valve seat (4a) has conducting breach (A) near the periphery of tool joint pin (1) one end, in the situation that spring supporting piece (3) damages, return spring (5) and spring supporting piece (3) are washed away by liquid, T-valve core (4) moves towards the direction of tool joint pin (1), and, after being blocked by the inwall of tool joint pin (1), the inner chamber of the inner chamber of tool joint pin (1) and female joint (2) still can be by described conducting breach (A) conducting.
2. according to quick release coupling claimed in claim 1, it is characterized in that: totally 3-5 of described conducting breach (A), and be the periphery of circumference uniform distribution at close tool joint pin (1) one end of described valve seat (4a).
3. according to the described quick release coupling of claim 1 or 2, it is characterized in that: the liquid via hole (3a) on described spring supporting piece (3) is fan shaped borehole, totally three and be circumference uniform distribution, the rib width L between each liquid via hole (3a) is 4mm, and the root diameter (RD) φ of rib is 13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440278.1U CN203384536U (en) | 2013-07-23 | 2013-07-23 | Quick-change connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440278.1U CN203384536U (en) | 2013-07-23 | 2013-07-23 | Quick-change connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384536U true CN203384536U (en) | 2014-01-08 |
Family
ID=49873024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320440278.1U Expired - Fee Related CN203384536U (en) | 2013-07-23 | 2013-07-23 | Quick-change connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352185A (en) * | 2016-09-27 | 2017-01-25 | 覃盛安 | Quick joint with capacity of inserting and pulling tube under pressure |
-
2013
- 2013-07-23 CN CN201320440278.1U patent/CN203384536U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352185A (en) * | 2016-09-27 | 2017-01-25 | 覃盛安 | Quick joint with capacity of inserting and pulling tube under pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20180723 |