CN217108448U - Pneumatic control hydraulic reversing valve - Google Patents
Pneumatic control hydraulic reversing valve Download PDFInfo
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- CN217108448U CN217108448U CN202220082952.2U CN202220082952U CN217108448U CN 217108448 U CN217108448 U CN 217108448U CN 202220082952 U CN202220082952 U CN 202220082952U CN 217108448 U CN217108448 U CN 217108448U
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- 230000007246 mechanism Effects 0.000 description 5
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Abstract
The utility model discloses a pneumatic control hydraulic reversing valve, which relates to the technical field of hydraulic reversing valves, and aims to solve the problem that the pneumatic control hydraulic reversing valve in the prior art has higher cost for ensuring the regulation precision; the gas accuse subassembly, the gas accuse subassembly sets up the switching and the direction of switching on of control valve body on the valve body, the piston with be provided with at least a set of stop gear between the air chamber, stop gear is including the arch and the spacing groove of mutually supporting, the arch sets up on the piston, the spacing groove is seted up on the air chamber, the arch has the trend of outside motion, and after the piston slided to the protruding position that is close to the spacing groove, under the effect of elasticity, the compensation of piston running error in the certain limit can be accomplished by oneself to protruding and spacing groove interact, adopts this kind of technical scheme, when gas accuse improvement hydraulic reversing valve precision, has also restricted its cost well.
Description
Technical Field
The utility model relates to a hydraulic reversing valve's technical field specifically is a gas accuse hydraulic reversing valve.
Background
The hydraulic reversing valve is divided into the following parts according to the number of passages held by the reversing valve: two-way, three-way, four-way and five-way, etc. by applying the absolute movement of valve core error valve body, the oil circuit can be communicated, closed or changed in the oil flowing direction, so that the hydraulic pressure fulfillment element and its driving mechanism can bear, end or change the movement direction.
The hydraulic reversing valve comprises an electromagnetic driving type and a pneumatic driving type, the traditional pneumatic driving type hydraulic reversing valve needs to pay higher design and production cost for ensuring regulation and control precision, and a technical means for effectively improving the precision of the pneumatic control hydraulic reversing valve with low cost is lacked in the prior art;
the utility model aims to solve the problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, i.e. the problems of the background art, the utility model provides a pneumatic control hydraulic directional control valve, which comprises a valve body, wherein the valve body is a directional control valve;
the gas accuse subassembly, the switching and the direction that switches on of gas accuse subassembly setting control valve body on the valve body, the gas accuse subassembly includes:
the pneumatic valve comprises an air chamber, a piston and a connecting rod, wherein the air chamber is connected with a pneumatic system, the connecting rod drives a valve core of a valve body to operate, the piston is connected in the air chamber in a sliding mode, and the piston drives the connecting rod to operate;
the piston with be provided with at least a set of stop gear between the air chamber, stop gear is including the arch and the spacing groove of mutually supporting, the arch sets up on the piston, the spacing groove is seted up on the air chamber, the arch has the trend of outside motion.
The utility model discloses a further set up to: the opening angle of the limiting groove is larger than the section angle of the protrusion and the matching end of the limiting groove;
the protrusion and one side of the limiting groove automatically slide into the middle position of the limiting groove under the action of an outward movement trend.
The utility model discloses a further set up to: the pneumatic control assembly further comprises a protective cover, the protective cover is arranged on the valve body, and the air chamber is fixed on the protective cover.
The utility model discloses a further set up to: the protrusion is slidably coupled within the piston and provides a spring force through a spring.
The utility model discloses a further set up to: the protruding tip and the limiting groove are conical.
The utility model has the advantages that: the utility model discloses in, every group stop gear all corresponds the operating condition that the switching-over valve is different, and pneumatic system work makes the inside pressure of air chamber change, and the piston can slide, and the piston slides to protruding behind the position that is close to the spacing groove, under the effect of elasticity, protruding and spacing groove interact can accomplish the compensation of certain limit internal piston running error by oneself, consequently, adopts this kind of technical scheme, when improving gas accuse hydraulic pressure switching-over valve precision, has also restricted its cost well, the utility model discloses the structure is simple and easy, does benefit to popularization and popularization.
Drawings
Fig. 1 shows a schematic front view of the present invention;
fig. 2 shows a schematic front view structure of the present invention;
fig. 3 shows a schematic left-side view of the present invention;
fig. 4 shows a schematic diagram of a partial enlarged structure at a in fig. 2 according to the present invention.
Reference numerals: 1-valve body, 2-air chamber, 3-piston, 4-connecting rod, 5-limit mechanism, 51-projection, 52-limit groove, 6-protective cover and 7-spring.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Example (b):
referring to fig. 1-4, the utility model provides a pneumatic control hydraulic directional control valve, which comprises a valve body 1, wherein the valve body 1 is a directional control valve, and the directional control valve is a three-position four-way directional control valve in the embodiment;
the gas accuse subassembly, the gas accuse subassembly sets up the switching and switch on the direction of control valve body 1 on valve body 1, and the gas accuse subassembly includes:
the pneumatic valve comprises an air chamber 2, a piston 3 and a connecting rod 4, wherein the air chamber 2 is connected with a pneumatic system, the connecting rod 4 drives a valve core of a valve body 1 to operate, the piston 3 is connected in the air chamber 2 in a sliding mode, and the piston 3 drives the connecting rod 4 to operate;
the pneumatic control assembly further comprises a protective cover 6, the protective cover 6 is arranged on the valve body 1, and the air chamber 2 is fixed on the protective cover 6;
as shown in fig. 2, the piston 3 can slide left and right under the action of the pneumatic system, and the sliding drives the connecting rod 4 and the valve core to slide, so that the valve core can slide to change the conduction relation and the opening and closing state of the three-position four-way reversing valve;
at least one group of limiting mechanisms 5 are arranged between the piston 3 and the air chamber 2, each limiting mechanism 5 comprises a protrusion 51 and a limiting groove 52 which are matched with each other, the protrusion 51 is arranged on the piston 3, the limiting groove 52 is arranged on the air chamber 2, and the protrusion 51 tends to move outwards;
the feature that the projection 51 has a tendency to run outwards can be realized by the spring 7, i.e. the projection 51 is slidably connected in the piston 3 and the spring force is provided by the spring 7;
in this embodiment, in order to ensure the stability of the protrusion 51 matching with the limiting groove 52, each group of limiting mechanisms 5 has two protrusions 51 and two limiting grooves;
the cross-sectional shapes of the protrusion 51 and the stopper groove 52 are both tapered, and the shapes of the protrusion 51 and the stopper groove 52 may be both tapered.
The opening angle of the limiting groove 52 is larger than the section angle of the matching end of the protrusion 51 and the limiting groove 52;
the protrusion 51 automatically slides into the middle position of the limiting groove 52 under the action of the outward movement trend after contacting one side of the limiting groove 52, as shown in fig. 2;
in this embodiment, there are three limiting points on the air chamber 2, and each limiting point all corresponds the different operating condition of three-position four-way reversing valve, and pneumatic system work makes the inside pressure of air chamber 2 change, and piston 3 can slide, and after the piston slides to the position that protruding 51 is close to spacing groove 52, under the effect of elasticity, protruding 51 and spacing groove 52 interact can accomplish the compensation of piston running error within the certain limit by oneself.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and particularly, various features shown in the various embodiments may be combined in any combination as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.
So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (5)
1. The pneumatic control hydraulic reversing valve is characterized in that: the method comprises the following steps:
the valve body (1), the said valve body (1) is a kind of reversal valve;
the gas accuse subassembly, the gas accuse subassembly sets up the switching and the direction that switches on of control valve body (1) on valve body (1), and the gas accuse subassembly includes:
the pneumatic valve comprises an air chamber (2), a piston (3) and a connecting rod (4), wherein the air chamber (2) is connected with a pneumatic system, the connecting rod (4) drives a valve core of a valve body (1) to operate, the piston (3) is connected in the air chamber (2) in a sliding mode, and the piston (3) drives the connecting rod (4) to operate;
piston (3) with be provided with at least a set of stop gear (5) between air chamber (2), stop gear (5) are including protruding (51) and spacing groove (52) of mutually supporting, protruding (51) set up on piston (3), spacing groove (52) are seted up on air chamber (2), there is the trend of outside motion protruding (51).
2. The pneumatic control hydraulic directional valve according to claim 1, characterized in that: the opening angle of the limiting groove (52) is larger than the section angle of the protrusion (51) matched with the limiting groove (52);
the protrusion (51) and one side of the limiting groove (52) automatically slide into the middle position of the limiting groove (52) under the action of an outward movement trend.
3. The pneumatic control hydraulic directional valve according to claim 1, characterized in that: the pneumatic control assembly further comprises a protective cover (6), the protective cover (6) is arranged on the valve body (1), and the air chamber (2) is fixed on the protective cover (6).
4. The pneumatic control hydraulic directional valve according to claim 1, characterized in that: the protrusion (51) is slidably connected in the piston (3) and provides elastic force through a spring (7).
5. The pneumatic control hydraulic directional valve according to claim 2, characterized in that: the tip of the protrusion (51) and the limiting groove (52) are conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220082952.2U CN217108448U (en) | 2022-01-13 | 2022-01-13 | Pneumatic control hydraulic reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220082952.2U CN217108448U (en) | 2022-01-13 | 2022-01-13 | Pneumatic control hydraulic reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217108448U true CN217108448U (en) | 2022-08-02 |
Family
ID=82596932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220082952.2U Active CN217108448U (en) | 2022-01-13 | 2022-01-13 | Pneumatic control hydraulic reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217108448U (en) |
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2022
- 2022-01-13 CN CN202220082952.2U patent/CN217108448U/en active Active
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