CN2883825Y - High/low pressure cut-over valve - Google Patents
High/low pressure cut-over valve Download PDFInfo
- Publication number
- CN2883825Y CN2883825Y CN 200520109691 CN200520109691U CN2883825Y CN 2883825 Y CN2883825 Y CN 2883825Y CN 200520109691 CN200520109691 CN 200520109691 CN 200520109691 U CN200520109691 U CN 200520109691U CN 2883825 Y CN2883825 Y CN 2883825Y
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- CN
- China
- Prior art keywords
- hole
- valve body
- low pressure
- valve
- high low
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- 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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- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a high-low pressure switching valve, which is characterized in that a valve core is arranged in the valve body and an end cover is arranged at both ends of the valve body. The utility model uses an eleven-diameter shaft as the valve core; the structure of the valve body is matched with the valve core so as to utilize the size and the holes on each section of the valve core and realize the purpose of switching the high-low pressure of the oil way depending on the combination of the holes. The utility model has the advantages of being convenient for automatic control, having simple and compact structure, saving the assembling space, having convenient maintenance, enabling to achieve automatic switching of the high-low pressure without disassembling the hydraulic system and keeping the system clean without loss.
Description
Technical field
The utility model relates to a kind of fluid control elements, particularly a kind of high low pressure switching valve.
Background technique
Concrete pump uses stable, and is economical and practical, is widely used in industrial equipment foundation, and construction works such as water conservancy and hydropower, bridge, tunnel, mine, harbour, tall building have efficient, high-quality, low consumption, advantage such as safe and reliable.But it mainly adopts hydraulic system, and when realizing that high low pressure switches, prior art so just must section be opened oil circuit for changing the oil pipe Placement, make troubles to operation, and the disconnection of oil circuit, might produce leakage of oil, so just polluted environment.Also have to adopt and manually change the valve piece, operation is inconvenient like this.Also have a plurality of valve pieces of employing to move simultaneously in addition, realization is automaticallyed switch, but complex structure, cost height, poor stability.
Above-mentioned existing high low pressure selector valve, existing many shortcomings on structural design, and when using, produce trouble and inconvenience, remain in fact to be improved.
Summary of the invention
The purpose of this utility model provides a kind of selector valve, can be easy to realize automatic control, and compact structure is simple, saves installing space, is convenient to maintenance, does not tear hydraulic system open and can realize that high low pressure automaticallyes switch, and maintenance system cleaning is lossless.
For achieving the above object, the technological scheme below the utility model adopts:
A kind of high low pressure switching valve, its structure are that spool is housed in the valve body, and end cap respectively is equipped with at the valve body two ends, wherein,
Described spool is a multidiameter shaft, this multidiameter shaft has 11 sections, and wherein second section from an end is the twice of other width of every section, and other every section width is identical, in 11 sections the 4th, six, eight, ten, identical with second section diameter, all the other are identical with first section diameter; In 11 sections, second and third, have through hole on four, five, seven, eight, nine sections, wherein, second and third, four sections inside, hole communicates, the hole of the 5th, seven intersegmental parts communicates, the 8th, nine section hole communicates;
Described valve body is a square casing, and the width of valve body and formed two containing spaces of end cap is identical with the width at the two ends of spool; When first section of described valve body contacts with end cap, second and third of described valve body, five, six, seven, eight, nine, ten sections places over against valve body respectively have an oil groove, this oil groove links to each other with the through hole of the one side of valve body, and the through hole of opening on the described valve body links to each other with oil-way system.Described a kind of high low pressure switching valve, wherein, the through hole of opening on the described spool is a four-hole, six mouthfuls are waited through hole, simultaneously also have corresponding logical oil groove and through hole on the described valve body in addition.
Described a kind of high low pressure switching valve, wherein, the through hole on the described valve body can be sealed with locking device.
Described a kind of high low pressure switching valve, wherein, having on the described valve body can be with pipeline at least two through hole that link to each other.
Described a kind of high low pressure switching valve wherein, respectively has a hole in the described end cap, this hole links to each other with oil circuit, can connect a pilot valve on this oil circuit.
Described a kind of high low pressure switching valve, wherein, described pilot valve is conventional valves such as solenoid valve, pressure valve.
Described a kind of high low pressure switching valve, wherein, described spool directly connects the leader.
The utility model adopts above-mentioned method, has easy realization and controls automatically, and compact structure is simple, saves installing space, is convenient to maintenance, does not tear hydraulic system open and can realize advantages such as high low pressure automaticallyes switch, and maintenance system cleaning is lossless.
Description of drawings
Fig. 1 is a whole sectional drawing of the present utility model;
Fig. 2 is the stereogram of spool of the present utility model;
Fig. 3 is the sectional drawing of spool of the present utility model;
Fig. 4 is the stereogram of valve body of the present utility model;
Fig. 5 is the sectional drawing of valve body of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
As shown in Figure 1, a kind of high low pressure switching valve, its structure is that spool is housed in the valve body, end cap respectively is equipped with at the valve body two ends.
As shown in Figures 2 and 3, spool is a multidiameter shaft, and this multidiameter shaft has 11 sections, wherein second section from an end is the twice of other width of every section, other every section width is identical, and in 11 sections the 4th, six, eight, ten, identical with second section diameter, all the other are identical with first section diameter; In 11 sections, second and third, four, five, seven, eight, nine, have through hole on the section, wherein, second and third, four sections inside, hole communicates, the hole of the 5th, seven intersegmental parts communicates, the 8th, nine section hole communicates;
As shown in Figure 4 and Figure 5, valve body is a square casing, and the width of valve body and formed two containing spaces of end cap is identical with the width at spool two ends.When first section of valve body contacted with end cap, second and third of valve body, five, six, seven, eight, nine, ten sections places over against valve body respectively had an oil groove, and this oil groove links to each other with the through hole of the one side of valve body, and the through hole of opening on the valve body links to each other with oil-way system.
Spool directly connects the leader, just can promote spool by handle like this, reaches the effect of manually having changed oil circuit.
Respectively have a hole at the two end cap place, this hole links to each other with oil circuit, can connect a pilot valve on this oil circuit.Pilot valve can be conventional valves such as solenoid valve, pressure valve.Pilot valve communicates with oil circuit, and oil pressure reaches the pressure that pilot valve is set by the time, the pilot valve transposition, stay into oil from the hole of end caps, strength promotion spool by oil pressure moves, thereby makes the through hole that has on the spool form new path, realizes from the effect of having moved oil circuit.
The through hole of opening on the spool of the present utility model can be the through hole of four-hole, also is called cross-hole, and certainly, the utility model also can have six mouthfuls and wait through hole.The utility model is when having the four-hole through hole, and other two sides also has corresponding through hole on the valve body.The valve body four sides all has the hole that links to each other with oil circuit like this, makes things convenient for the user to connect.If do not need, can, the same through hole form a through hole to the oil circuit turnover for being connected with pipeline for the through hole on some valve body.Also can seal the no through hole on the valve body with locking device.
The above; only be one of preferable feasible embodiment of the utility model; can not therefore promptly limit to interest field of the present utility model; concerning being familiar with those of ordinary skill in the art; such as use the technical solution of the utility model and technical conceive to make other various corresponding changes and distortion, and all these changes and distortion all should belong within the protection domain of the utility model claim.
Claims (7)
1, a kind of high low pressure switching valve, its structure are that spool is housed in the valve body, and end cap respectively is equipped with at the valve body two ends, it is characterized in that,
Described spool is a multidiameter shaft, this multidiameter shaft has 11 sections, and wherein second of an end section is the twice of other width of every section, and other every section width is identical, in 11 sections the 4th, six, eight, ten, identical with second section diameter, all the other are identical with first section diameter; In 11 sections, second and third, have through hole on four, five, seven, eight, nine sections, wherein, second and third, four sections inside, hole communicates, the hole of the 5th, seven intersegmental parts communicates, the 8th, nine section hole communicates;
Described valve body is a square casing, and the width of valve body and formed two containing spaces of end cap is identical with the width at the two ends of spool; When first section of described valve body contacts with end cap, second and third of described valve body, five, six, seven, eight, nine, ten sections places over against valve body respectively have an oil groove, this oil groove links to each other with the through hole of the one side of valve body, and the through hole of opening on the described valve body links to each other with oil-way system.
2, a kind of high low pressure switching valve according to claim 1 is characterized in that, the through hole of opening on the described spool is a four-hole, and six mouthfuls of through holes simultaneously also have corresponding logical oil groove and through hole in addition on the described valve body.
3, a kind of high low pressure switching valve according to claim 2 is characterized in that the through hole on the described valve body can be sealed with locking device.
4, a kind of high low pressure switching valve according to claim 1 and 2 is characterized in that, having on the described valve body can be with pipeline at least two through hole that link to each other.
5, a kind of high low pressure switching valve according to claim 1 and 2 is characterized in that, respectively has a hole in the described end cap, and this hole links to each other with oil circuit, can connect a pilot valve on this oil circuit.
6, a kind of high low pressure switching valve according to claim 5 is characterized in that, described pilot valve is the conventional valve of solenoid valve, pressure valve.
7, a kind of high low pressure switching valve according to claim 1 and 2 is characterized in that described spool directly connects the leader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109691 CN2883825Y (en) | 2005-06-10 | 2005-06-10 | High/low pressure cut-over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109691 CN2883825Y (en) | 2005-06-10 | 2005-06-10 | High/low pressure cut-over valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883825Y true CN2883825Y (en) | 2007-03-28 |
Family
ID=37956886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520109691 Expired - Fee Related CN2883825Y (en) | 2005-06-10 | 2005-06-10 | High/low pressure cut-over valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883825Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838377A (en) * | 2017-03-07 | 2017-06-13 | 中国科学技术大学 | A kind of adjustable pipeline fluid switching switch of switch speed |
| CN108999997A (en) * | 2018-11-08 | 2018-12-14 | 烟台佳友电子机械科技有限公司 | A kind of automatic recuperation valve of flat seal |
| CN110630805A (en) * | 2019-09-26 | 2019-12-31 | 长安大学 | Rapid solenoid valve system of aircraft engine and control method thereof |
-
2005
- 2005-06-10 CN CN 200520109691 patent/CN2883825Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838377A (en) * | 2017-03-07 | 2017-06-13 | 中国科学技术大学 | A kind of adjustable pipeline fluid switching switch of switch speed |
| CN106838377B (en) * | 2017-03-07 | 2019-07-23 | 中国科学技术大学 | A kind of adjustable pipeline fluid switching switch of switch speed |
| CN108999997A (en) * | 2018-11-08 | 2018-12-14 | 烟台佳友电子机械科技有限公司 | A kind of automatic recuperation valve of flat seal |
| CN110630805A (en) * | 2019-09-26 | 2019-12-31 | 长安大学 | Rapid solenoid valve system of aircraft engine and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |