CN103016455A - Anti-explosion valve - Google Patents
Anti-explosion valve Download PDFInfo
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- CN103016455A CN103016455A CN2012105666838A CN201210566683A CN103016455A CN 103016455 A CN103016455 A CN 103016455A CN 2012105666838 A CN2012105666838 A CN 2012105666838A CN 201210566683 A CN201210566683 A CN 201210566683A CN 103016455 A CN103016455 A CN 103016455A
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Abstract
The invention discloses an anti-explosion valve, belonging to a control valve, and aiming to provide an anti-explosion valve which is capable of automatically locking an oil path when an oil pipe at an oil inlet end or an oil outlet end bursts. The anti-explosion valve comprises a valve body, a plug and a valve core, wherein the valve body is internally provided with a valve chamber; the left end of the valve chamber is closed by the plug; the valve core is arranged in the valve chamber for separating the valve chamber into a left chamber and a right chamber; the middle part of the valve chamber is a dumbbell-shaped oil duct; the valve body is provided with a pipe connecting opening A and a pipe connecting opening B which are communicated through the oil duct; the pipe connecting opening A is communicated with the left chamber through an oil saving hole formed in the valve body; and the right chamber (16) is communicated with the pipe connecting opening B (17) through a tee joint. The anti-explosion valve is flexible in response; and with the adoption of the anti-explosion valve, the condition that vehicles overturn caused by burst of the oil pipe connected with an oil inlet or an oil outlet can be prevented.
Description
Technical field
The present invention relates to a kind of control valve, relate in particular to a kind of explosion-proof valve.
Background technique:Engineering vehicle causes the oil liquid pressure in the hanging oil cylinder to descend rapidly in the process of walking because the various reasons such as road bump, flow shakiness, pipeline problem all may cause pipelines from bursting and cause oil liquid leakage; Thereby cause hanging oil cylinder not bear weight and sink, vehicle topples.For this reason, most of engineering vehicles are usually at oil circuit filler opening end tandem explosion-proof valve.Yet traditional explosion-proof valve only has unidirectional explosion prevention function; I.e. locking oil circuit voluntarily when filler opening end oil pipe burst leaks, then helpless when the oil pipe generation explosion of oil outlet end.But in actual conditions, the situation that oil outlet end oil pipe burst leaks is not within minority, and therefore in use still there is unsafe factor in traditional explosion-proof valve.
Summary of the invention:For the defects that exists in the prior art, but equal explosion-proof valve of automatic blocking oil circuit when the present invention aims to provide a kind of no matter filler opening or oil outlet end oil pipe burst.
To achieve these goals, the present invention is by the following technical solutions: it comprise inside be provided with the valve body of valve pocket, with the plug of this valve pocket left end sealing, be located at the spool that is divided into left chamber and right chamber in the described valve pocket with this its; The valve pocket stage casing is the dumbbell shaped oil duct, has the A adapter mouth and the B that are communicated with by this oil duct to take over mouth on the described valve body, and described A takes over mouth and is communicated with described left chamber by the fuel-economizing hole that is located in the valve body; Right chamber is taken over mouth by threeway with B and is communicated with.
Between right chamber and described threeway, be provided with damping device, this damping device by the swivel nut that is fixedly connected with right chamber, be located at left spring seat and right spring seat in this swivel nut, be located at spring between described two spring seats, pass screw rod that this spring is fixedly connected with spool, between left spring seat and spool and the spacer that is enclosed within on the screw rod consist of; Between left spring seat and spool, be provided with pad; Be provided with the pressure test mouth at valve body, this pressure test mouth is communicated with A adapter mouth by the oilhole that is located in the valve body; Position corresponding to left chamber and right chamber on valve body is respectively equipped with relief hole, and there is the steel ball that is compressed by plug screw this relief hole port.
Compared with the prior art, the present invention is owing to adopted technique scheme, therefore can realize two-way pipeline explosion self-locking and can manually remove self-locking state: when taking over mouthful pipelines from bursting that is connected and cause left chamber rapid decompression with A, hydraulic oil in the right chamber promotes spool and is moved to the left and the dumbbell shaped oil duct is closed, thereby guarantee that taking over mouthful oil duct of the oil cylinder that is connected with B is lockable, vehicle can not topple because of this chamber rapid decompression; After fault was got rid of, the plug screw pressure release on the right chamber relief hole of outwarding winding also can make valve core reset by spring, and system resumes work.In like manner, cause right chamber rapid decompression when taking over a mouthful pipelines from bursting that is connected with B, hydraulic oil promotion spool in the left chamber moves right and the dumbbell shaped oil duct is closed, thereby guarantees that taking over mouthful oil duct of the oil cylinder that is connected with A is lockable, and vehicle can not topple because of this chamber rapid decompression; After fault was got rid of, the plug screw pressure release on the left chamber relief hole of outwarding winding also can make valve core reset by spring, and system resumes work.In addition, spring also has buffering and does usefulness, can avoid spool to clash into damage because of high-speed mobile.The present invention is quick on the draw, and can prevent from causing vehicle to topple because of any side oil pipe burst.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view among Fig. 1.
Among the figure: plug 1 valve body 2 fuel-economizing holes, 3 A take over mouthful 4 spools, 5 oilholes, 6 spacers, 7 pressure test mouths, 8 pads, 9 left spring seats, 10 swivel nuts, 11 springs, 12 right spring seat 13 screw rods 14 internal threads 15 right chamber 16 B and take over mouthful 17 left chamber 18 plug screws, 19 steel balls 20
Embodiment:The invention will be further described below in conjunction with accompanying drawing and specific embodiment:
Shown in Fig. 1～2, be provided with valve pocket in the valve body 2, the stage casing of this valve pocket is the oil duct of dumbbell shaped structure; The A adapter mouth 4 and the B that are located on the valve body 2 take over mouth 17 by this oil duct connection.At the left end of described valve pocket plug 1 with its sealing is arranged, in valve pocket, be provided with the dumbbell shaped spool 5 that this valve pocket is divided into left chamber 18 and right chamber 16; Left chamber 18 is communicated with A adapter mouth 4 by the fuel-economizing hole 3 that is located in the valve body 2, and right chamber 16 is taken over mouth 17 by the threeway (not shown) with B and is communicated with.
In order to prevent that spool 5 from clashing into damage because of high-speed mobile, also reset for the ease of spool 5 simultaneously, between right chamber 16 and described threeway, be provided with damping device.This damping device by the swivel nut 11 that is fixedly connected with right chamber 16 by screw thread, be located at left spring seat 10 and right spring seat 13 in this swivel nut, be located at spring 12 between described two spring seats, pass screw rod 14 that this spring and spool 5 be connected, between left spring seat 10 and spool 5 and the spacer 7 that is enclosed within on the screw rod 14 consist of.For the ease of being connected with threeway, be provided with internal thread 15 at swivel nut 11 right-hand members.
Move to left for fear of restriction left spring seat 10, between left spring seat 10 and spool 5, be provided with pad 9.
Pressure for the ease of the test system energy is provided with pressure test mouth 8 at valve body 2, and this pressure test mouth is communicated with A adapter mouth 4 by the oilholes 6 that are located in the valve body 2.
Reset for the ease of spool 5, the position corresponding to left chamber 18 and right chamber 16 on valve body 2 is respectively equipped with relief hole, and there is the steel ball 20 that is compressed by plug screw 19 this relief hole port.
Working principle: in the vehicle normal course of operation, spool 5 is in state shown in Figure 1, A adapter this moment mouth 4 is taken over mouthful 17 oil ducts by the dumbbell shaped structure with B and is kept being communicated with, and right chamber 18 and A adapter mouthful 4 pressure keep a balance, right chamber 16 to be consistent with B adapter mouth 17 pressure.When causing left chamber 18 rapid decompression when taking over mouthful 4 oil pipe line explosions that are connected with A, hydraulic oil in the right chamber 16 promotes spool 5 and is moved to the left and the dumbbell shaped oil duct is closed, thereby guarantee that the oil duct of taking over mouthful 17 oil cylinders that are connected with B is lockable, vehicle can not topple because of this chamber rapid decompression; After fault was got rid of, the plug screw 19 in the relief hole on the right chamber 16 of outwarding winding got final product pressure release, and spring 12 promotes immediately spool 5 and resets.When taking over mouthful 17 in-line explosions that are connected and cause right chamber 16 rapid decompressions with B, hydraulic oil promotion spool 5 in the left chamber 18 moves right and the dumbbell shaped oil duct is closed, thereby guarantee that the oil duct of taking over mouthful 4 oil cylinders that are connected with A is lockable, vehicle can not topple because of this chamber rapid decompression; After fault was got rid of, the plug screw 19 in the relief hole on the left chamber 18 of outwarding winding was pressure release, and spring 12 promotes immediately spool 5 and resets.
In the process that spool 5 is moved to the left, screw rod 14 can pass through right spring seat 13 Compress Springs 12, and spring force can hinder screw rod 14 to left movement, thereby can play buffering to the motion of spool 5; In like manner, in the process that spool 5 moves right, spool 5 can promote left spring seat 10 by spacer 7 and make spring 12 compressions, and spring force can hinder spool 5 and move right, thereby can avoid spool 5 to cause bump because of high-speed motion.
Claims (6)
1. explosion-proof valve, comprise inside be provided with the valve body of valve pocket, with the plug of this valve pocket left end sealing, be located at the spool that is divided into left chamber and right chamber in the described valve pocket with this its; The valve pocket stage casing is the dumbbell shaped oil duct, has the A adapter mouth and the B that are communicated with by this oil duct to take over mouth on the described valve body, and described A takes over mouth and is communicated with described left chamber by the fuel-economizing hole that is located in the valve body; It is characterized in that: right chamber (16) are taken over mouthful (17) by threeway with B and are communicated with.
2. explosion-proof valve according to claim 1, it is characterized in that: between right chamber (16) and described threeway, be provided with damping device, this damping device by the swivel nut (11) that is fixedly connected with right chamber (16), be located at left spring seat (10) and right spring seat (13) in this swivel nut, be located at spring (12) between described two spring seats, pass screw rod (14) that this spring is fixedly connected with spool (5), be positioned between left spring seat (10) and the spool (5) and the spacer (7) that is enclosed within on the screw rod (14) consists of.
3. explosion-proof valve according to claim 2 is characterized in that: be provided with pad (9) between left spring seat (10) and spool (5).
4. according to claim 1 and 2 or 3 described explosion-proof valves, it is characterized in that: be provided with pressure test mouth (8) at valve body (2), this pressure test mouth is taken over mouth (4) with A and is communicated with by being located at oilhole (6) in the valve body (2).
5. according to claim 1 and 2 or 3 described explosion-proof valves, it is characterized in that: be respectively equipped with relief hole in the upper position corresponding to left chamber (18) and right chamber (16) of valve body (2), there is the steel ball (20) by plug screw (19) compression this relief hole port.
6. explosion-proof valve according to claim 4 is characterized in that: be respectively equipped with relief hole in the upper position corresponding to left chamber (18) and right chamber (16) of valve body (2), there is the steel ball (20) by plug screw (19) compression this relief hole port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105666838A CN103016455A (en) | 2012-12-24 | 2012-12-24 | Anti-explosion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105666838A CN103016455A (en) | 2012-12-24 | 2012-12-24 | Anti-explosion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103016455A true CN103016455A (en) | 2013-04-03 |
Family
ID=47965423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105666838A Pending CN103016455A (en) | 2012-12-24 | 2012-12-24 | Anti-explosion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016455A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762917A (en) * | 2017-03-10 | 2017-05-31 | 湖南鸿辉科技有限公司 | A kind of big flow explosion-proof valve and method of work |
| CN106969007A (en) * | 2017-05-21 | 2017-07-21 | 新乡市新倍增自动化设备有限公司 | Explosion-proof emergent Releasing loop |
| CN108679027A (en) * | 2018-08-03 | 2018-10-19 | 中船绿洲镇江船舶辅机有限公司 | A kind of overflow type hydraulic explosion-proof valve |
| CN116085336A (en) * | 2023-02-08 | 2023-05-09 | 韶关市伟光液压油缸有限公司 | Hydraulic pressure safety explosion-proof valve of self-adaptation regulation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210710A (en) * | 1998-01-26 | 1999-08-03 | Shin Caterpillar Mitsubishi Ltd | Oil pressure control circuit of operating machine |
| JPH11230375A (en) * | 1998-02-18 | 1999-08-27 | Hitachi Constr Mach Co Ltd | Directional control valve having restoration circuit |
| CN2748679Y (en) * | 2004-12-09 | 2005-12-28 | 中日合资上海太平洋机电制造有限公司 | Explosion-proof device for hydraulic cylinder |
| CN201568404U (en) * | 2009-12-07 | 2010-09-01 | 湖北三江航天万山特种车辆有限公司 | Hydraulic pipeline two-way anti-explosion valve |
| CN201646610U (en) * | 2010-05-06 | 2010-11-24 | 中通汽车工业集团有限责任公司 | Automatic protection device of dump truck hydraulic pipeline |
| CN201696395U (en) * | 2010-07-09 | 2011-01-05 | 上海朝田实业有限公司 | Anti-explosion valve capable of verifying anti-explosion effect for hydraulic pump station |
| CN203051278U (en) * | 2012-12-24 | 2013-07-10 | 贵州枫阳液压有限责任公司 | Anti-explosion valve |
-
2012
- 2012-12-24 CN CN2012105666838A patent/CN103016455A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210710A (en) * | 1998-01-26 | 1999-08-03 | Shin Caterpillar Mitsubishi Ltd | Oil pressure control circuit of operating machine |
| JPH11230375A (en) * | 1998-02-18 | 1999-08-27 | Hitachi Constr Mach Co Ltd | Directional control valve having restoration circuit |
| CN2748679Y (en) * | 2004-12-09 | 2005-12-28 | 中日合资上海太平洋机电制造有限公司 | Explosion-proof device for hydraulic cylinder |
| CN201568404U (en) * | 2009-12-07 | 2010-09-01 | 湖北三江航天万山特种车辆有限公司 | Hydraulic pipeline two-way anti-explosion valve |
| CN201646610U (en) * | 2010-05-06 | 2010-11-24 | 中通汽车工业集团有限责任公司 | Automatic protection device of dump truck hydraulic pipeline |
| CN201696395U (en) * | 2010-07-09 | 2011-01-05 | 上海朝田实业有限公司 | Anti-explosion valve capable of verifying anti-explosion effect for hydraulic pump station |
| CN203051278U (en) * | 2012-12-24 | 2013-07-10 | 贵州枫阳液压有限责任公司 | Anti-explosion valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762917A (en) * | 2017-03-10 | 2017-05-31 | 湖南鸿辉科技有限公司 | A kind of big flow explosion-proof valve and method of work |
| CN106762917B (en) * | 2017-03-10 | 2018-09-18 | 湖南鸿辉科技有限公司 | A kind of big flow explosion-proof valve and working method |
| CN106969007A (en) * | 2017-05-21 | 2017-07-21 | 新乡市新倍增自动化设备有限公司 | Explosion-proof emergent Releasing loop |
| CN108679027A (en) * | 2018-08-03 | 2018-10-19 | 中船绿洲镇江船舶辅机有限公司 | A kind of overflow type hydraulic explosion-proof valve |
| CN116085336A (en) * | 2023-02-08 | 2023-05-09 | 韶关市伟光液压油缸有限公司 | Hydraulic pressure safety explosion-proof valve of self-adaptation regulation |
| CN116085336B (en) * | 2023-02-08 | 2023-09-01 | 韶关市伟光液压油缸有限公司 | Hydraulic pressure safety explosion-proof valve of self-adaptation regulation |
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Application publication date: 20130403 |