CN200982329Y - Two position two-way plug-in valve type high and low pressure switching valve - Google Patents
Two position two-way plug-in valve type high and low pressure switching valve Download PDFInfo
- Publication number
- CN200982329Y CN200982329Y CN 200620157400 CN200620157400U CN200982329Y CN 200982329 Y CN200982329 Y CN 200982329Y CN 200620157400 CN200620157400 CN 200620157400 CN 200620157400 U CN200620157400 U CN 200620157400U CN 200982329 Y CN200982329 Y CN 200982329Y
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- mouth
- valve
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- oil
- switching valve
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Abstract
The utility model relates to a high-low change-over valve with bi-stable and bi-pass cartridge valve, comprising six cartridge valves and a directional selecting valve, the control ports of the cartridge valves V <2>, V <4>, V <6> are connected with each other and the directional selecting valve A, P of the directional selecting valve is used as a state control port of the change-over valve, the control ports of the cartridge valves V <1>, V <3>, V <5> are connected with each other and the directional selecting valve B, T of the directional selecting valve is used as an oil return port of the change-over valve, the A1 port and the A4 port of V <1> and V <4> are connected with each other used as an interface with outside, the B3 port and the B6 port of V <3> and V <6> are connected with each other used as another interface with outside, the B1 port of V <1> and the A2 port of V <2> are connected with each other used as an oil-out port of the change-over valve, the A3 port of V <3> and the B2 port of V <2> are connected with each other used as another oil-out port of the change-over valve, the B4 port of V <4> and the A5 port of V <5> are connected with each other used as an oil-out port of the change-over valve, the A6 port of V <6> and the B5 port of V <5> are connected with each other used as an oil-out port of the change-over valve, the hand handle of the directional selecting valve is used as a pilot control valve of the change-over valve. The utility model has compact and reasonable structure, and long operating life.
Description
Technical field
The utility model belongs to concrete pump with hydraulic system valve group field, is specifically related to a kind of bi-bit bi-pass cartridge valve formula high low pressure switching valve.
Background technique
At present, domestic and international most of concrete pump manufacturer satisfies user's different requirements to transmission and concrete transmission pressure and quantity delivered in practice of construction, on the master cylinder of concrete pump, all be provided with high-low voltage switching device, make the pressure oil of main oil pump enter master cylinder rod chamber---the pump machine is in the big displacement condition of low pressure at this moment; Or the pressure oil that makes main oil pump enters the rod chamber of master cylinder---the pump machine is in the little displacement condition of high pressure at this moment.Have in these devices directly that oil pipe oil inlet and outlet direction realizes by changing, the manual high low pressure handoff block of using the replaceable internal oil passages passage of artificial unloading is also arranged, also useful manually or the sliding valve style high low pressure switching valve of electric control operation, be used for seeing the deficiency that all exists separately but make from practice.Though it is simple to change the mode of oil pipe, in work progress, use inconvenience, just can carry out after needing to shut down, and easily cause the loss of hydraulic system pollution and hydraulic oil; With manual high low pressure handoff block, similar with top method, just, there is above-mentioned deficiency equally tearing oil pipe watt one-tenth rotation pinboard open to change inlet and outlet of fuel channel; With manual or automatically controlled sliding valve style high low pressure switching valve, though it is comparatively convenient, can in work progress, change the high low pressure state of pumping at any time, but owing to be sliding valve style, switch complexity, let out comparatively serious in it, easily cause the main system job failure, and its maximum hydraulic pressure flow is restricted, and flow below 500L/min, is exactly one of them through patent retrieval 98230983 mostly.
Summary of the invention
The deficiency that the purpose of this utility model is to avoid above-mentioned present technology to exist, and provide a kind of simple structure, easy to use, reliable performance, safety to be fit to jumbo concrete pump high low pressure switching operating device.
Bi-bit bi-pass cartridge valve formula high low pressure switching valve of the present utility model comprises valve body, spool, filler opening, return opening, control mouth, and its spool combines cartridge valve V by six cartridge valves and a selector valve
2, V
4, V
6The control mouth connect and be connected with the outlet A of selector valve, the pressure port P of selector valve is as the high low pressure State Control mouth of switching valve; Cartridge valve V
1, V
3, V
5The control mouth connect and be connected with the outlet B of selector valve, the oil return inlet T of selector valve is as the high low pressure State Control return opening of switching valve; V
1, V
4A1, A4 mouth be connected to the C mouth, the C mouth as with the interface of extraneous master cylinder selector valve oil outlet; V
3, V
6B3, B6 mouth be connected to the D mouth, the D mouth also as with another interface of extraneous master cylinder selector valve oil outlet; V
1B1 mouth and V
2The A2 mouth be connected to the C1 mouth, the C1 mouth is as the oil outlet of switching valve; V
3A3 mouth and V
2The B2 mouth be connected to the D1 mouth, the D1 mouth is as another oil outlet of switching valve; V
4B4 mouth and V
5The A5 mouth connect, as the oil outlet C2 of switching valve; V
6A6 mouth and V
5The B5 mouth connect, as the oil outlet D2 of switching valve; The operating grip S of selector valve is as the pilot-actuated valve of switching valve state transformation; Mouth and V
2The A2 mouth link to each other b mouth and V with the C1 mouth
5The A5 mouth link to each other with the C2 mouth, as the hydraulic fluid port that is connected with extraneous two stroke control valves.
Advantage of the present utility model is that compact structure is reasonable, and is easy to use, quick when control concrete pump machine high low pressure state, need not to dismantle any oil pipe, and can be by the manual or automatically controlled pumping state of changing at any time in the practice of construction process; Owing to adopted the bi-bit bi-pass plug-in type one-way valve of standard, make the high low pressure switching valve in practical work process, almost not have internal leakage in addition, and peak rate of flow do not have any restriction, but 5500L/min, and working pressure can reach 35MPa; Reliable performance, safe, long service life.
Description of drawings
Fig. 1 is a hydraulic schematic diagram of the present utility model.
Fig. 2 is a main TV structure schematic representation of the present utility model.
Fig. 3 is a plan structure schematic representation of the present utility model.
Fig. 4 is a backsight structural representation of the present utility model.
Fig. 5 is the structural representation of looking up of the present utility model.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, cartridge valve V
2, V
4, V
6The control mouth connect and be connected with the outlet A of selector valve, the pressure port P of selector valve is as the high low pressure State Control mouth of switching valve; Cartridge valve V
1, V3, V
5The control mouth connect and be connected with the outlet B of selector valve, the oil return inlet T of selector valve is as the high low pressure State Control return opening of switching valve; V
1, V
4A1, A4 mouth be connected to the C mouth, the C mouth as with the interface of extraneous master cylinder selector valve oil outlet; V
3, V
6B3, B6 mouth be connected to the D mouth, the D mouth also as with another interface of extraneous master cylinder selector valve oil outlet; V
1B1 mouth and V
2The A2 mouth be connected to the C1 mouth, the C1 mouth is as the oil outlet of switching valve; V
3A3 mouth and V
2The B2 mouth be connected to the D1 mouth, the D1 mouth is as another oil outlet of switching valve; V
4B4 mouth and V
5The A5 mouth connect, as the oil outlet C2 of switching valve; V
6A6 mouth and V
5The B5 mouth connect, as the oil outlet D2 of switching valve; The operating grip S of selector valve is as the pilot-actuated valve of switching valve state transformation; Mouth and V
2The A2 mouth link to each other b mouth and V with the C1 mouth
5The A5 mouth link to each other with the C2 mouth, as the hydraulic fluid port that is connected with extraneous two stroke control valves.Fig. 2-Fig. 5 is a mechanical structure schematic representation of the present utility model, has provided topology layout.
Its working principle is as follows:
C, D two hydraulic fluid ports are two oil outlets that connect the master cylinder selector valve, and for example now the C hydraulic fluid port is the pressure hydraulic fluid port, because cartridge valve V
2, V
4, V
6Control chamber (big chamber) connects pressure oil, so this three valve is in closed condition, and cartridge valve V
1, V
3, V
5Control chamber (big chamber) what connect is fuel tank, so this three valve is in opening state.C hydraulic fluid port pressure oil enters cartridge valve V
1Enter right master cylinder rod chamber, promote right master cylinder retraction, the oil of right master cylinder rodless cavity advances V
5Cartridge valve goes into left master cylinder and promotes left master cylinder to stretch out, and left master cylinder rod chamber oil is through cartridge valve V
3Flow back to fuel tank.After stroke puts in place, the commutation of master cylinder selector valve, the D hydraulic fluid port is the pressure hydraulic fluid port, D hydraulic fluid port pressure oil is through cartridge valve V
3Enter left master cylinder rod chamber and make left master cylinder retraction, the oil of left master cylinder rodless cavity is through cartridge valve V simultaneously
5Enter right master cylinder rodless cavity and promote right master cylinder and stretch out, this moment, the pump machine was the big displacement condition of low pressure.Operation (manual or automatically controlled) selector valve V
7Commutation, then cartridge valve V
1, V
3, V
5Big chamber connect pressure oil, this three valve is in closed condition, cartridge valve V
2, V
4, V
6Big chamber connected tank, this three valve is in opening state.
Equally, when the C hydraulic fluid port is the pressure hydraulic fluid port, C hydraulic fluid port pressure oil is through cartridge valve V
4Enter left master cylinder rodless cavity, left master cylinder stretches out, and the oil of left master cylinder rod chamber is through cartridge valve V
2Enter right master cylinder rod chamber, promote right master cylinder retraction, right master cylinder rodless cavity oil is through cartridge valve V
6Return the master cylinder selector valve.After stroke puts in place, main four-way commutation, the D hydraulic fluid port is the pressure hydraulic fluid port, D hydraulic fluid port pressure oil is through cartridge valve V
6Enter right master cylinder rodless cavity, and promote right master cylinder and stretch out, the oil of right master cylinder rod chamber is through cartridge valve V
2Enter left master cylinder rod chamber and promote left master cylinder retraction, this moment, the pump machine was the little displacement condition of high pressure.
Fig. 2 is the concrete structure schematic representation of bi-bit bi-pass cartridge valve formula high low pressure switching valve, V among the figure
2-1 is bi-bit bi-pass cartridge valve lock pin external member, and 6 cartridge valve lock pin external members are identical, and its open and close state is determining pump machine high low pressure state, V
2-2 is bi-bit bi-pass cartridge valve cover plate, and totally 6, main effect is the epicoele that the control oil of selector valve is imported lock pin, and fixing lock pin, more than the two is standard valve, 1-1 is a pinboard, mainly provides the access way of control oil, V
7Be selector valve, can be electronic or manual two kinds, this valve latus rectum 6mm is the standard latus rectum, and its effect is to change V by commutation
1, V
3, V
5And V
2, V
4, V
6Open and-shut mode, to realize the change of pump machine high low pressure state, it is the pilot valve of six bi-bit bi-pass cartridge valves switching, 1-2 is a valve body, it provides the installation cavity for six bi-bit bi-pass cartridge valves, and each cavity is interconnected, to realize preset function.
This model utility is not to have only a kind of specific standard, it can be according to the different requirements of pump machine product hydraulic flow, select the bi-bit bi-pass cartridge valve of different size, the valve body of design different size, just can develop out different size, peak rate of flow all specifications from 230L/min to 5500L/min all contain.Be 4 with the specification for example bi-bit bi-pass cartridge valve of " bi-bit bi-pass cartridge valve, peak rate of flow can reach 5500L/min, is 2 with specification ", peak rate of flow can reach 1700L/min, and is 5/8 with specification " the bi-bit bi-pass cartridge valve, peak rate of flow has only 230L/min.
Claims (1)
1, a kind of bi-bit bi-pass cartridge valve formula high low pressure switching valve comprises valve body, spool, filler opening, return opening, control mouth, it is characterized in that spool combines cartridge valve V by six cartridge valves and a selector valve
2, V
4, V
6The control mouth connect and be connected with the outlet A of selector valve, the pressure port P of selector valve is as the high low pressure State Control mouth of switching valve; Cartridge valve V
1, V
3, V
5The control mouth connect and be connected with the outlet B of selector valve, the oil return inlet T of selector valve is as the high low pressure State Control return opening of switching valve; V
1, V
4A1, A4 mouth be connected to the C mouth, the C mouth as with the interface of extraneous master cylinder selector valve oil outlet; V
3, V
6B3, B6 mouth be connected to the D mouth, the D mouth also as with another interface of extraneous master cylinder selector valve oil outlet; V
1The B1 mouth and the A2 mouth of V2 be connected to the C1 mouth, the C1 mouth is as the oil outlet of switching valve; V
3The A3 mouth and the B2 mouth of V2 be connected to the D1 mouth, the D1 mouth is as another oil outlet of switching valve; V
4B4 mouth and V
5The A5 mouth connect, as the oil outlet C2 of switching valve; V
6A6 mouth and V
55 mouthfuls of connections of B, as the oil outlet D2 of switching valve; The operating grip S of selector valve is as the pilot-actuated valve of switching valve state transformation; Mouth and V
2The A2 mouth link to each other b mouth and V with the C1 mouth
5The A5 mouth link to each other with the C2 mouth, as the hydraulic fluid port that is connected with extraneous two stroke control valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620157400 CN200982329Y (en) | 2006-11-16 | 2006-11-16 | Two position two-way plug-in valve type high and low pressure switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620157400 CN200982329Y (en) | 2006-11-16 | 2006-11-16 | Two position two-way plug-in valve type high and low pressure switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982329Y true CN200982329Y (en) | 2007-11-28 |
Family
ID=38909487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620157400 Expired - Fee Related CN200982329Y (en) | 2006-11-16 | 2006-11-16 | Two position two-way plug-in valve type high and low pressure switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982329Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425585A (en) * | 2011-12-07 | 2012-04-25 | 中联重科股份有限公司 | Closed hydraulic system for pumping device, and control method for closed hydraulic system |
| CN102478031A (en) * | 2010-11-22 | 2012-05-30 | 北汽福田汽车股份有限公司 | Switching valve and pumping system |
| CN102748338A (en) * | 2012-07-25 | 2012-10-24 | 中联重科股份有限公司 | Rotary valve and dual-cylinder pumping equipment |
| CN103062444A (en) * | 2013-01-29 | 2013-04-24 | 中国石油大学(北京) | Water pressure plug-in type three-position four-way electromagnetic directional valve |
| CN103062024A (en) * | 2012-12-26 | 2013-04-24 | 中联重科股份有限公司 | High-low-pressure switching method for double-cylinder pumping device, hydraulic control system of double-cylinder pumping device and device |
| CN103511379A (en) * | 2013-09-26 | 2014-01-15 | 徐州重型机械有限公司 | Crane, hydraulic system and change-over valve |
| CN108716494A (en) * | 2018-07-17 | 2018-10-30 | 湖南鼎峰机械有限公司 | A kind of concrete pumping equipment high-low pressure automatic switching valve and hydraulic system |
-
2006
- 2006-11-16 CN CN 200620157400 patent/CN200982329Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478031A (en) * | 2010-11-22 | 2012-05-30 | 北汽福田汽车股份有限公司 | Switching valve and pumping system |
| CN102478031B (en) * | 2010-11-22 | 2015-09-09 | 北汽福田汽车股份有限公司 | Switching valve and pumping system |
| CN102425585A (en) * | 2011-12-07 | 2012-04-25 | 中联重科股份有限公司 | Closed hydraulic system for pumping device, and control method for closed hydraulic system |
| CN102748338A (en) * | 2012-07-25 | 2012-10-24 | 中联重科股份有限公司 | Rotary valve and dual-cylinder pumping equipment |
| CN102748338B (en) * | 2012-07-25 | 2014-12-24 | 中联重科股份有限公司 | Rotary valve and dual-cylinder pumping equipment |
| CN103062024B (en) * | 2012-12-26 | 2014-12-10 | 中联重科股份有限公司 | High-low-pressure switching method for double-cylinder pumping device, hydraulic control system of double-cylinder pumping device and device |
| CN103062024A (en) * | 2012-12-26 | 2013-04-24 | 中联重科股份有限公司 | High-low-pressure switching method for double-cylinder pumping device, hydraulic control system of double-cylinder pumping device and device |
| CN103062444B (en) * | 2013-01-29 | 2014-12-10 | 中国石油大学(北京) | Water pressure plug-in type three-position four-way electromagnetic directional valve |
| CN103062444A (en) * | 2013-01-29 | 2013-04-24 | 中国石油大学(北京) | Water pressure plug-in type three-position four-way electromagnetic directional valve |
| CN103511379A (en) * | 2013-09-26 | 2014-01-15 | 徐州重型机械有限公司 | Crane, hydraulic system and change-over valve |
| CN103511379B (en) * | 2013-09-26 | 2016-08-24 | 徐州重型机械有限公司 | A kind of crane, hydraulic system and switching valve |
| CN108716494A (en) * | 2018-07-17 | 2018-10-30 | 湖南鼎峰机械有限公司 | A kind of concrete pumping equipment high-low pressure automatic switching valve and hydraulic system |
| CN108716494B (en) * | 2018-07-17 | 2023-12-01 | 湖南鼎峰机械有限公司 | High-low pressure automatic switching valve of concrete pumping equipment and hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090123 Address after: Hubei city of Wuhan Province Liu Fang East Lake development zone two East Industrial Park, zip code: 430205 Patentee after: Shantui Construction Machinery Co., Ltd. Address before: Hubei city of Wuhan Province Liu Fang East Lake development zone two East Industrial Park, zip code: 430205 Patentee before: Hubei Chutian Engineering Machinery Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANTUI CHUTIAN ENGINEERING MACHINE CO., LTD. Free format text: FORMER OWNER: HUBEI CHUTIAN ENGINEERING MACHINERY CO., LTD. Effective date: 20090123 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20101116 |