CN208153788U - A kind of control mechanism and sliding sleeve control valve of valve - Google Patents

Abstract

The utility model discloses a valve control mechanism and a sliding sleeve control valve, wherein, the valve control mechanism is provided with a first control spool and a second control spool, and the valve has a first A valve hole and a second valve hole, the first control spool has at least a first opening position for opening the first valve hole and a first closing position for closing the first valve hole, and the second control spool has at least the first opening position for opening the first valve hole. The second opening position of the second valve hole and the second closing position of closing the second valve hole; the utility model can play the role of gas direction control, fine adjustment can be realized and the intake flow is linear.

Description

A valve control mechanism and a sliding sleeve control valve

technical field

The utility model relates to the field of control valves, in particular to a valve control mechanism and a sliding sleeve control valve.

Background technique

At present, gas directional control valves have been widely used in lifting systems, and with the widespread use of lifting systems, directional control valves have also been widely used. However, the directional control valves currently used are generally button-type. The use of common button-type control valves requires a long time to press the button, which greatly shortens the service life, and is not suitable for users to hold it for a long time. Most of the flow channels of the control valves commonly used today are densely distributed, which is not suitable for most gases and occasions. Therefore, it is an urgent problem to be solved in the industry to design and develop a switch control valve with good airtight performance, rapid air intake, and hand-holding.

Utility model content

Aiming at the technical problems existing in the prior art, the purpose of this utility model is: to provide a valve control mechanism and a sliding sleeve control valve, which can effectively control the flow direction of gas or hydraulic oil, and at the same time change the push-button control to a sliding part. It greatly improves the service life and makes the control more stable, and can be applied in flammable and explosive environments such as coal mines.

The purpose of the utility model is achieved through the following technical solutions: a valve control mechanism, the valve is provided with a first control spool and a second control spool, and the valve has a first valve hole and a second valve hole , the first control spool has at least a first opening position for opening the first valve hole and a first closing position for closing the first valve hole, and the second control spool has at least a first opening position for opening the second valve hole an open position and a second closed position closing said second valve orifice;

The control mechanism is used to control the action of the first control spool and the second control spool, the control mechanism includes a sliding part, and the sliding part is used to receive the first position switching power along the first direction to drive the first control spool. The spool is switched to the first open position while the second control spool is in the second closed position, and the sliding member is also used to receive the second position switching power in the second direction opposite to the first direction to drive the first control spool to switch to the first closed position and the second control spool is in the second open position.

Preferably, the control mechanism includes a first transmission lever that is hinged in the middle and used to transmit the switching power of the first position to the first control spool and/or a hinged middle that is used to switch the second position. The power is transmitted to the second transmission lever of the second control spool.

Preferably, both ends of the first transmission lever abut against the first control valve core and one end of the sliding member respectively;

Both ends of the second transmission lever abut against the second control valve core and the other end of the sliding member respectively.

Preferably, the first control spool and the second control spool are arranged along the first direction or the second direction, and the first control spool and the second control spool are respectively arranged on opposite sides of the valve , the first control spool and the second control spool face opposite and the control ends of the first control spool and the second control spool respectively expose the valve, and the control ends of the first control spool and the second control spool respectively It abuts against the first transmission lever and the second transmission lever.

Preferably, the control mechanism includes a guide column, the axis of the guide column is parallel to the first direction or the second direction, and the sliding member is fitted on the guide column and can slide relative to the guide column along the first direction and the second direction.

Preferably, the control mechanism includes a first elastic reset element, and the first elastic reset element exerts a force to switch the first control valve core to the first closed position after the power to switch the first position is cancelled.

Preferably, the control mechanism includes a second elastic reset element, and the second elastic reset element exerts a force to switch the second control valve core to the second closed position after the power to switch the second position is cancelled.

Preferably, the first control spool further includes a first adjustment position between the first open position and the first closed position for adjusting the opening degree of the first control spool; the second control spool Also comprising a second adjustment position for adjusting the opening degree of the second control spool between the second open position and the second closed position;

The sliding component also receives a first adjustment power along the first direction to adjust the opening of the first control spool; the sliding component also receives a second adjustment power along the second direction to adjust the opening of the second control spool.

A sliding sleeve control valve, comprising: a valve body and the control mechanism of any one of the above-mentioned valves, the valve body is provided with an actuator valve core and a pressure relief valve for depressurizing the input channel of the valve body The valve body has an output valve hole communicating with an external actuator and a pressure output valve hole for pressure relief, and the actuator spool has at least an output position for opening the output valve hole and a closing position for closing the output valve hole. stop position; the pressure relief spool has at least a pressure relief position for opening the pressure output valve hole and a pressure holding position for closing the pressure output valve hole;

The control mechanism of the valve is used to control the actions of the executive spool and pressure relief spool.

Preferably, the valve body has a pressure relief valve hole communicating with the output valve hole for releasing the pressure of the external actuator, and a plug that can block the pressure relief valve hole.

Compared with the prior art, the utility model has the following advantages and effects:

1. The utility model can play the role of controlling the direction of the gas, and can realize fine adjustment and the gas flow is linear. The utility model converts the traditional button type control into a sliding part (handle sliding sleeve type). Compared with the button type, the sliding part has a longer service life and a simpler structure. Compared with the electric control, the utility model consists of pure Mechanical control achieves a more stable control effect, and can be applied in coal mines and other environments where electrical control is not suitable, to avoid explosions caused by sparks generated by electrical control. It can be seen that the utility model has the advantage of a wide range of applications.

2. The utility model changes the positional relationship between the traditional inlet valve core and the outlet valve core. The utility model elongates the channel between the first valve hole and the second valve hole, and can be used in the first valve hole and the second valve hole. The valve hole and the main input channel are provided with multiple ventilation channels that can be directly connected to the atmosphere and are blocked by a detachable plugging part. When the valve or valve body is damaged or other problems cause the gas to not flow normally, the The blocking part is dismantled, so that the gas in the first valve hole, the second valve hole and the main input passage can be unblocked in time.

3. The utility model also has the advantages of simple structure, easy production and use, and has broad application prospects.

Description of drawings

Fig. 1 is the schematic diagram of an embodiment of the control mechanism of the utility model valve;

Fig. 2 is the schematic diagram of another embodiment of the control mechanism of the utility model valve;

Fig. 3 is the schematic diagram of another embodiment of the control mechanism of the utility model valve;

Fig. 4 is a schematic diagram of an embodiment of the sliding sleeve control valve of the present invention.

Detailed ways

The utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Fig. 1 is a schematic diagram of an embodiment of the control mechanism of the valve of the present invention. In this embodiment, the valve is provided with a first control spool 100 and a second control spool 200, the valve has a main input channel 300, a first valve hole 301 and a second valve hole 302, the first valve hole 301 and the second valve hole 302 communicate with the main input channel 300 respectively. As a preferred embodiment, the first valve hole 301 can be connected with an external actuator to provide power for the external actuator, and the second valve hole 302 can be connected to another An external actuator may be directly communicated with the atmosphere, and the gas or hydraulic oil in the main input channel 300 may be discharged when communicated with the atmosphere.

The first control spool 100 has at least a first opening position for opening the first valve hole 301 and a first closing position for closing the first valve hole 301, and the second control spool 200 has at least a function for opening the second valve hole. A second open position of the hole 302 and a second closed position closing said second valve hole 302;

The control mechanism is used to control the action of the first control spool 100 and the second control spool 200. The control mechanism includes a sliding part 400 and a guide post. The sliding part 400 is sleeved on the outer periphery of the guide post and can be The column slides axially.

The sliding part 400 is used to receive the first position switching power along the first direction 101 to drive the first control spool 100 to switch to the first open position while the second control spool 200 is located at the second closed position. The sliding part 400 is also used The second position switching power receives the second direction 201 opposite to the first direction 101 to drive the first control spool 100 to switch to the first closed position and the second control spool 200 is located at the second open position. As a preferred embodiment, the first direction 101 may correspond to the up-and-down direction in FIG. 1 , that is, the axial direction of the sliding component 400 . In practice, as shown in Figure 2, it can be placed horizontally to avoid false triggering of the second control spool 200 located below due to the self-weight of the sliding part 400 (when the second control spool 200 is located below, the same reason , when the first control spool 100 is located below, false triggering of the first control spool 100 can also be avoided).

In this embodiment, the control mechanism includes a first transmission lever 401 that is hinged in the middle and used to transmit the switching power of the first position to the first control spool 100 and/or a hinged middle that is used to transfer the first position switching power to the first control spool 100 . The second position switching power is transmitted to the second transmission lever 402 of the second control spool 200 , and the first control spool 100 and the second control spool 200 are arranged along the first direction 101 or the second direction 201 , the first control spool 100 and the second control spool 200 are respectively arranged on opposite sides of the valve, the first control spool 100 and the second control spool 200 face opposite and the first control spool 100 and the second control spool The control ends of the two control spools 200 respectively expose the valves, and the control ends of the first control spool 100 and the second control spool 200 abut against the first transmission lever 401 and the second transmission lever 402 respectively. In addition, this embodiment can also control the actions of the first control spool 100 and the second control spool 200 through means such as electronic switch and electromagnetic control. The sliding part 400 is triggered to start, for example, the first control spool 100 is controlled by the first transmission lever 401, and the second control spool 200 is started by the electronic switch triggered by the sliding part 400, which will not be repeated here.

In the above embodiment, both ends of the first transmission lever 401 abut against the first control valve core 100 and one end of the sliding member 400 respectively.

In the above embodiment, the two ends of the second transmission lever 402 abut against the second control spool 200 and the other end of the sliding member 400 respectively.

During specific operation, by sliding the sliding part 400, the sliding part 400 is slid toward the first transmission lever 401, and at this moment, one end of the first transmission lever 401 is pushed by the sliding part 400, and the other end of the first transmission lever 401 is pressed toward The control end of the first transmission lever 401, the first transmission lever 401 is switched from the first closed position to the first open position, at this time, the gas or hydraulic oil in the main input channel 300 can pass through the first control spool 100 and flow from the first A valve hole 301 is output to the external actuator, and one end of the second transmission lever 402 located at the other end moves with the sliding part 400 to make the other end of the second transmission lever 402 away from the second control spool 200 or the second transmission lever 402 stand still.

Fig. 2 is a schematic diagram of another embodiment of the control mechanism of the valve of the present invention. The control mechanism includes a bracket 403 fixedly connected to the valve and a guide column mounted on the bracket 403, the axis of the guide column is parallel to the first direction 101 or the second direction 201, the sliding part 400 is set on the guide column and can Sliding relative to the guide post along the first direction 101 and the second direction 201 .

Fig. 3 is a schematic diagram of another embodiment of the control mechanism of the valve of the present invention. In this embodiment, the control mechanism includes a first elastic return element 102, and the first elastic return element 102 exerts a force to switch the first control spool 100 to the first closed position after the power to switch the first position is cancelled. Specifically, when the sliding part 400 receives the second position switching power or when the sliding part 400 cancels the first position switching power, the first elastic return element 102 returns from the compressed state to the original state, thereby pushing the first control valve core 100, so that The first control spool 100 is closed.

In the above-mentioned embodiment, the control mechanism includes a second elastic return element 202, and the second elastic return element 202 applies a force to switch the second control spool 200 to the second closed position after the second position switching power is cancelled. Specifically, when the sliding part 400 receives the first position switching power or when the sliding part 400 cancels the second position switching power, the second elastic return element 202 returns from the compressed state to the original state, thereby pushing the second control valve core 200, so that The second control spool 200 is closed.

The above-mentioned first elastic reset element 102 and second elastic reset element 202 may be elastic elements such as springs.

In this embodiment, the first control spool 100 further includes a first adjustment position between the first open position and the first closed position for adjusting the opening degree of the first control spool 100; The second control spool 200 also includes a second adjustment position for adjusting the opening degree of the second control spool 200 between the second opening position and the second closing position;

The sliding member 400 also receives the first adjustment power along the first direction 101 to adjust the opening degree of the first control spool 100; the sliding member 400 also receives the second adjustment power along the second direction 201 to adjust the second control spool 200 of the opening.

In specific use, the movement of the sliding member 400 can be controlled according to actual needs, thereby controlling the flows of the first control spool 100 and the second control spool 200, and when the sliding member 400 is in the neutral position, the first control spool Both 100 and the second control spool 200 are in the closed state.

Fig. 4 is a schematic diagram of an embodiment of the sliding sleeve control valve of the present invention. The sliding sleeve control valve includes: a valve body 500 and the valve control mechanism 600 of the above-mentioned embodiment, the valve body is provided with an actuator valve core and a pressure relief valve for depressurizing the input channel of the valve body 500 Valve core, the valve body 500 has an output valve hole communicating with an external actuator and a pressure output valve hole for pressure relief, and the actuator spool has at least an output position for opening the output valve hole and closing the output valve hole The shutdown position; the pressure relief spool has at least a pressure relief position for opening the pressure output valve hole and a pressure holding position for closing the pressure output valve hole;

The control mechanism of the valve is used to control the action of the executive spool and the pressure relief spool, so that the executive spool switches between the output position and the shutdown position, and the pressure relief spool is between the pressure relief position and the pressure holding position Switching, in addition, can also control the opening of the executive spool and pressure relief spool, so as to control the start-up speed of the external actuator and the speed of pressure relief to the input channel of the valve body.

The sliding sleeve control valve may be a pneumatic sliding sleeve control valve or a hydraulic sliding sleeve control valve.

In this embodiment, the executive spool also includes a speed adjustment position between the output position and the shut-off position for adjusting the opening of the executive spool; the pressure relief spool also includes a The pressure relief adjustment position used to adjust the opening of the pressure relief valve core between the position and the pressure holding position;

The sliding member 400 also receives the first adjustment power along the first direction 101 to adjust the opening of the executive valve core; the sliding member 400 also receives the second adjustment power along the second direction 201 to adjust the opening of the relief valve core.

In specific use, the moving amount of the sliding part 400 can be controlled according to the actual needs, thereby controlling the flow of the actuating spool and the pressure relief spool. Disabled.

In this embodiment, the valve body 500 has a pressure relief valve hole communicating with the output valve hole for releasing the pressure of the external actuator and a plug that can block the pressure relief valve hole. When the external actuator needs to be relieved, the plug can be unscrewed from the pressure relief valve hole, so that the gas or hydraulic oil entering the external actuator enters the pressure relief valve hole through the output valve hole to realize pressure relief. When the external actuator needs to be pressurized or maintained, the plug can be blocked in the pressure relief valve hole.

The external actuator may be an air hoist or an air motor or the like.

The above-mentioned embodiment is a preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the above-mentioned embodiment, and any other changes, modifications and substitutions made without departing from the spirit and principle of the present utility model , combination, and simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present utility model.

Claims (10)

1. A control mechanism for a valve, characterized in that, the valve is provided with a first control spool and a second control spool, the valve has a first valve hole and a second valve hole, the first control spool It has at least a first opening position for opening the first valve hole and a first closing position for closing the first valve hole, and the second control spool has at least a second opening position for opening the second valve hole and a closing position for closing the first valve hole. the second closed position of the second valve hole; The control mechanism is used to control the action of the first control spool and the second control spool, the control mechanism includes a sliding part, and the sliding part is used to receive the first position switching power along the first direction to drive the first control spool. The spool is switched to the first open position while the second control spool is in the second closed position, and the sliding member is also used to receive the second position switching power in the second direction opposite to the first direction to drive the first control spool to switch to the first closed position and the second control spool is in the second open position. 2. The valve control mechanism according to claim 1, characterized in that the control mechanism comprises a first transmission lever hinged in the middle and used to transmit the switching power of the first position to the first control spool And/or the second transmission lever that is hinged in the middle and is used to transmit the switching power of the second position to the second control spool. 3. The valve control mechanism according to claim 2, characterized in that, the two ends of the first transmission lever abut against the first control spool and one end of the sliding member respectively; Both ends of the second transmission lever abut against the second control valve core and the other end of the sliding member respectively. 4. The valve control mechanism according to claim 2 or 3, characterized in that, the first control spool and the second control spool are arranged along the first or second direction, and the first control The spool and the second control spool are respectively arranged on opposite sides of the valve, the first control spool and the second control spool face opposite directions and the control ends of the first control spool and the second control spool respectively expose the In the valve, the control ends of the first control spool and the second control spool abut against the first transmission lever and the second transmission lever respectively. 5. The valve control mechanism according to claim 2 or 3, characterized in that the control mechanism comprises a guide column, the axis of the guide column is parallel to the first direction or the second direction, the sliding part is sleeved on the guide column and It can slide relative to the guide column along the first direction and the second direction. 6. The valve control mechanism according to claim 1, characterized in that, the control mechanism comprises a first elastic return element, and the first elastic return element is applied to make the first control spool Force to switch to first closed position. 7. The control mechanism of the valve according to claim 1 or 6, characterized in that, the control mechanism comprises a second elastic return element, and the second elastic return element applies the second control after the second position switching power is cancelled. The force with which the spool switches to the second closed position. 8. The control mechanism of the valve according to claim 1, wherein the first control spool further comprises a switch for adjusting the first control spool between the first open position and the first closed position. a first adjustment position of the opening degree; the second control spool further includes a second adjustment position for adjusting the opening degree of the second control spool between the second open position and the second closed position; The sliding component also receives a first adjustment power along the first direction to adjust the opening of the first control spool; the sliding component also receives a second adjustment power along the second direction to adjust the opening of the second control spool. 9. A sliding sleeve control valve, characterized in that it comprises: a valve body and the control mechanism of the valve according to any one of claims 1-8, wherein the valve body is provided with an actuator spool and a control mechanism for the valve body. The pressure relief spool that enters the channel for pressure relief, the valve body has an output valve hole that communicates with an external actuator and a pressure output valve hole for pressure relief, and the actuator spool has at least an output that opens the output valve hole position and a shutdown position for closing the output valve hole; the pressure relief spool has at least a pressure relief position for opening the pressure output valve hole and a pressure holding position for closing the pressure output valve hole; The control mechanism of the valve is used to control the actions of the executive spool and pressure relief spool. 10. The sliding sleeve control valve according to claim 9, wherein the valve body has a pressure relief valve hole communicating with the output valve hole for pressure relief of the external actuator, and the pressure relief valve hole can be blocked. Valve hole plug.