CN216555610U - Emergency device for hydraulic actuator - Google Patents
Emergency device for hydraulic actuator Download PDFInfo
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- CN216555610U CN216555610U CN202123090554.XU CN202123090554U CN216555610U CN 216555610 U CN216555610 U CN 216555610U CN 202123090554 U CN202123090554 U CN 202123090554U CN 216555610 U CN216555610 U CN 216555610U
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Abstract
The utility model discloses an emergency device for a hydraulic actuator, which comprises a body, an external oil circuit interface A and an external oil circuit interface B which are positioned on the body, an actuator oil circuit interface A 'which is communicated with an oil circuit of the external oil circuit interface A and is butted with an external actuator, and an actuator oil circuit interface B' which is communicated with an oil circuit of the external oil circuit interface B and is butted with the external actuator.
Description
The technical field is as follows:
the utility model relates to a hydraulic system part, in particular to an emergency device for a hydraulic actuator.
The background art comprises the following steps:
the hydraulic actuator mainly controls the opening and closing of a valve through an actuator by external hydraulic power. The method is mainly applied to pipelines of power plants, chemical engineering, petroleum and the like. Most of the existing hydraulic actuators are controlled by an external electro-hydraulic system, and part of the actuators are not provided with emergency devices, so that when the electro-hydraulic system fails or fails, even pipelines fail, the situation that a valve is not reset or is not reset timely easily occurs, and potential safety hazards exist. The hydraulic actuator products used in the market at present are also provided with emergency devices according to requirements, two emergency devices are common at present, one emergency device is directly placed on a system oil tank, but the oil supply pipeline of the emergency device is long, so that the response time is correspondingly long; another emergency device is provided with an oil tank, so that the external dimension is overlarge, and the emergency device is difficult to install in a narrow space.
The utility model has the following contents:
the utility model provides an emergency device for a hydraulic actuator, which comprises a body, an external oil way interface A and an external oil way interface B which are positioned on the body, an actuator oil way interface A 'communicated with an oil way of the external oil way interface A and butted with an external actuator, and an actuator oil way interface B' communicated with an oil way of the external oil way interface B and butted with the external actuator.
The utility model is further characterized in that:
the oil circuit of the manual reversing valve and the actuator oil circuit interface A 'is provided with a first hydraulic control one-way valve, the oil circuit of the manual reversing valve and the actuator oil circuit interface B' is provided with a second hydraulic control one-way valve, the oil circuit of the manual reversing valve and the manual pump is provided with a one-way valve, and a pilot oil circuit is arranged between the first hydraulic control one-way valve and the second hydraulic control one-way valve.
The manual pump comprises a pressure-lifting type operating handle.
The body is also provided with an A1 oil port communicated with an oil way of an actuator oil way interface A ', and a B1 oil port communicated with an oil way of an actuator oil way interface B', and quick connectors externally connected with an oil source are arranged on the A1 oil port and the B1 oil port.
The utility model has the beneficial effects that:
the emergency device for the hydraulic actuator also comprises an oil tank arranged in the body, and a manual pump and a manual reversing valve which are sequentially connected with the oil tank through oil lines, wherein the manual reversing valve is also communicated with the oil line interface A 'of the actuator, the oil line interface B' of the actuator and the oil tank through oil lines respectively, so that the emergency device body is directly provided with the oil tank and an emergency oil line, the cost is low, the oil line is short, the space occupancy rate is small, the installation is convenient, and the emergency device can support the actuator to complete the work or be in a safe position when the system automatically runs and fails.
Description of the drawings:
FIG. 1 is a hydraulic schematic diagram of an embodiment of the present invention in actual use.
The specific implementation mode is as follows:
the utility model is further described below with reference to the accompanying drawings:
fig. 1 is a hydraulic schematic diagram of an embodiment of the present invention in practical application, and as shown in fig. 1, an emergency device for a hydraulic actuator includes a body 1, an external oil path interface a and an external oil path interface B on the body, an actuator oil path interface a 'communicated with an oil path of the external oil path interface a and butted with an external actuator 9, an actuator oil path interface B' communicated with an oil path of the external oil path interface B and butted with the external actuator 9, an oil tank 2 disposed in the body, a manual pump 3 and a manual directional valve 4 sequentially connected with the oil tank in an oil path, wherein the manual directional valve 4 is further communicated with the actuator oil path interface a ', the actuator oil path interface B', and the oil tank 2 in an oil path respectively. In this embodiment, a first hydraulic control check valve 5 is arranged on an oil path of the manual directional valve 4 and the actuator oil path interface a ', a second hydraulic control check valve 6 is arranged on an oil path of the manual directional valve 4 and the actuator oil path interface B', a check valve 7 is arranged on an oil path of the manual directional valve 4 and the manual pump 3, and a pilot oil path 8 is arranged between the first hydraulic control check valve 5 and the second hydraulic control check valve 6; the manual pump 3 comprises a pressure-raising type operating handle 301; the body is also provided with an A1 oil port communicated with an oil way of an actuator oil way interface A ', and a B1 oil port communicated with an oil way of an actuator oil way interface B', and quick connectors (not shown) externally connected with an oil source are arranged on the A1 oil port and the B1 oil port.
In the embodiment shown in fig. 1, the actuator 9 is a rotary actuator, and when oil enters from the oil passage port a 'of the actuator and exits from the oil passage port B', the actuator rotates clockwise to drive the valve to reset or to a safe position; on the contrary, oil enters the actuator oil way interface A 'from the actuator oil way interface B', the actuator rotates anticlockwise to drive the valve to reset or reach the safety position, the oil way direction is determined by the handle position of the manual reversing valve 4, an operator can adjust the handle position of the manual reversing valve 4 according to the station where the valve controlled by the actuator is located in emergency, and then continuously lift and press the lifting and pressing type operating handle 301 of the manual pump, so that the actuator 9 can be operated to reset or reach the safety position. For example:
when the electro-hydraulic system fails or the pipeline fails, the external oil source cannot control the rotation of the actuator 9 through the AB port pipeline, the handle of the manual reversing valve 3 is rotated to the corresponding position (the 'O' indicates that the valve controlled by the actuator is opened, and the 'C' indicates that the valve controlled by the actuator is closed), and at the moment, the emergency device starts to work. Lifting the pressure-lifting operating handle 301 of the manual pump 4, sucking the oil in the oil tank 2, then pressing the pressure-lifting operating handle 301 of the manual pump 4, conveying the sucked oil into the cavity of the manual reversing valve 3, and conveying the oil in the cavity of the reversing valve 3 to the execution element 9; the pressure-increasing type operating handle 301 of the manual pump is repeatedly operated until the actuator 9 finishes the resetting of the valve or reaches a safe state.
If the initial position of the valve controlled by the actuator is in an open state, the handle of the reversing valve 3 is rotated to an O position, and then the pressure-lifting type operating handle 301 of the manual pump 4 is continuously lifted and pressed, so that the valve is restored to the initial state or the safe state.
When the initial position of the valve controlled by the actuator is in a closed state, the handle of the reversing valve 3 is rotated to the 'C' position, and then the handle of the manual pump 4 is continuously lifted and pressed, so that the valve is restored to the initial state or the safe state.
In addition, the body is also provided with an A1 oil port communicated with an oil way of an actuator oil way interface A 'and a B1 oil port communicated with an oil way of an actuator oil way interface B', and the A1 oil port and the B1 oil port are both provided with quick connectors (not shown) externally connected with an oil source, so that the body can be connected with an external oil source or an oil supplementing source at any time to carry out safe operation.
The emergency device for the hydraulic actuator also comprises an oil tank arranged in the body, and a manual pump and a manual reversing valve which are sequentially connected with the oil tank through oil lines, wherein the manual reversing valve is also communicated with the oil line interface A 'of the actuator, the oil line interface B' of the actuator and the oil tank through oil lines respectively, so that the emergency device body is directly provided with the oil tank and an emergency oil line, the cost is low, the oil line is short, the space occupancy rate is small, the installation is convenient, and the emergency device can support the actuator to complete the work or be in a safe position when the system automatically runs and fails.
While the utility model has been described with respect to the foregoing technical disclosure and features, it will be understood that various changes and modifications in the above-described arrangements, including combinations of features disclosed herein either individually or as claimed, may be suggested to one skilled in the art and are to be included within the spirit and scope of the appended claims. These variations and/or combinations fall within the skill of the art to which the utility model pertains and fall within the scope of the claims that follow.
Claims (4)
1. The emergency device for hydraulic actuator includes one main body, one external oil path interface A and one external oil path interface B on the main body, one actuator oil path interface A 'communicated with the oil path of the external oil path interface A and butted with the external actuator, and one actuator oil path interface B' communicated with the oil path of the external oil path interface B and butted with the external actuator.
2. An emergency device for a hydraulic actuator according to claim 1, wherein: the oil circuit of the manual reversing valve and the actuator oil circuit interface A 'is provided with a first hydraulic control one-way valve, the oil circuit of the manual reversing valve and the actuator oil circuit interface B' is provided with a second hydraulic control one-way valve, the oil circuit of the manual reversing valve and the manual pump is provided with a one-way valve, and a pilot oil circuit is arranged between the first hydraulic control one-way valve and the second hydraulic control one-way valve.
3. An emergency device for a hydraulic actuator according to claim 1, wherein: the manual pump comprises a pressure-lifting type operating handle.
4. An emergency device for a hydraulic actuator according to any one of claims 1 to 3, wherein: the body is also provided with an A1 oil port communicated with an oil way of an actuator oil way interface A ', and a B1 oil port communicated with an oil way of an actuator oil way interface B', and quick connectors externally connected with an oil source are arranged on the A1 oil port and the B1 oil port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123090554.XU CN216555610U (en) | 2021-12-10 | 2021-12-10 | Emergency device for hydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123090554.XU CN216555610U (en) | 2021-12-10 | 2021-12-10 | Emergency device for hydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555610U true CN216555610U (en) | 2022-05-17 |
Family
ID=81541178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123090554.XU Active CN216555610U (en) | 2021-12-10 | 2021-12-10 | Emergency device for hydraulic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216555610U (en) |
-
2021
- 2021-12-10 CN CN202123090554.XU patent/CN216555610U/en active Active
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