Quick exhaust gas path structure

Abstract

The utility model discloses a quick exhaust gas circuit structure which comprises a pneumatic actuator, the pneumatic actuator is connected with a one-way valve, a pneumatic control valve and a shut-off valve, a second electromagnetic valve is arranged on the one-way valve, the one-way valve is connected with a three-way valve, and the three-way valve and the pneumatic control valve are both connected with a first electromagnetic valve and a filtering pressure reducing valve. When the air cylinder needs to be fed with air, the first electromagnetic valve is powered on, the air source passes through the first electromagnetic valve, the air control valve is controlled to be communicated with an air path, and the air source enters the filtering pressure-reducing valve to be subjected to pressure reduction, the first electromagnetic valve and the air control valve are in a closed state, and an interface 1 and an interface 2 in the three-way valve are used for ventilation, so that air cannot be fed at the moment; the first electromagnetic valve is powered on, and the air source passes through the first electromagnetic valve to control the air control valve to be communicated with the air path; an air source enters from the pneumatic control valve, the second electromagnetic valve is not powered on, and the one-way valve cannot flow back. The quick exhaust gas circuit structure is used for a single-action cylinder, realizes emergency opening and closing, and accelerates the exhaust time of the cylinder.

Description

Technical Field

[0001] This utility model relates to the field of single-acting cylinder air circuit technology, and in particular to a rapid exhaust air circuit structure. Background Technology

[0002] The exhaust gas path structure is a support structure for controlling the exhaust of the gas source. It is used in single-acting cylinders to realize emergency opening and closing, accelerate the cylinder exhaust time, and control the exhaust gas path. With the continuous development of technology, people have increasingly higher requirements for the manufacturing process of the exhaust gas path structure.

[0003] Existing exhaust circuit structures have certain drawbacks in use. Ordinary single-acting cylinders can only achieve emergency reset for one stage of opening and closing. For example, if a cylinder is closed due to a fault, it cannot achieve the emergency opening function when the cylinder circuit fails, which will cause production losses to a certain extent. Normal single-acting cylinders exhaust through only one outlet, such as the pneumatic control valve or quick exhaust valve, and the exhaust time is inevitably limited, which brings certain adverse effects to the actual use process. Therefore, we propose a rapid exhaust circuit structure. Utility Model Content

[0004] Technical problem to be solved: In view of the shortcomings of the prior art, this utility model provides a rapid exhaust air passage structure for a single-acting cylinder, which realizes emergency opening and closing and speeds up the cylinder exhaust time, and can effectively solve the problems in the background art.

[0005] Technical solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rapid exhaust air circuit structure, including a pneumatic actuator, wherein the pneumatic actuator is connected to a one-way valve, a pneumatic control valve and a shut-off valve, wherein a second solenoid valve is provided on the one-way valve, and a three-way valve is connected to the one-way valve, wherein the three-way valve and the pneumatic control valve are both connected to a first solenoid valve and a filter pressure reducing valve, and the filter pressure reducing valve is connected to the first solenoid valve.

[0006] Preferably, the three-way valve is provided with interface 1, interface 2 and interface 3.

[0007] Preferably, the air source is depressurized at the filter pressure reducing valve, the first solenoid valve and the pneumatic control valve are in the closed state, and air is allowed through ports 1 and 2 of the three-way valve, but air cannot enter at this time.

[0008] Preferably, when the cylinder needs to be filled with air, the first solenoid valve is energized, the air source passes through the first solenoid valve, controls the pneumatic control valve to open the air path, and the air source enters from the pneumatic control valve. The second solenoid valve is not energized and the one-way valve cannot reverse the flow, so the air source can only enter the pneumatic actuator to drive the shut-off valve to switch.

[0009] Preferably, when the cylinder needs to exhaust air, the first solenoid valve is de-energized, the pneumatic control valve switches to exhaust air, and at the same time the second solenoid valve is energized. The air source in the pneumatic actuator exhausts air from both the pneumatic control valve and the three-way valve simultaneously, accelerating the exhaust speed and completing the rapid switching of the shut-off valve.

[0010] Preferably, when one of the first solenoid valves and the pneumatic control valve malfunctions, and the pneumatic actuator cylinder needs to be urgently vented and reset, the spring inside the pneumatic actuator will automatically rebound to complete the venting.

[0011] Preferably, when the cylinder of the pneumatic actuator needs emergency air intake, the state of the three-way valve is switched, and interface 1 and interface 3 on the three-way valve are connected. The air source passing through the filter pressure reducing valve enters the three-way valve and the one-way valve and directly enters the pneumatic actuator to achieve emergency air intake.

[0012] Preferably, the air source enters through the filter pressure reducing valve, and the air intake is controlled by the first solenoid valve and the air control valve.

[0013] Beneficial Effects: Compared with the prior art, this utility model provides a rapid exhaust air path structure with the following beneficial effects: This rapid exhaust air path structure is used for single-acting cylinders to achieve emergency opening and closing, and accelerate cylinder exhaust time. The air source enters the filter pressure reducing valve for pressure reduction. The first solenoid valve and the pneumatic control valve are in the closed state, and the three-way valve is open to air from one port to the other. At this time, air cannot enter. When the cylinder needs air in, the first solenoid valve is energized, and the air source passes through the first solenoid valve, controlling the pneumatic control valve to open the air path. The air source enters from the pneumatic control valve. The second solenoid valve is not energized, and the one-way valve cannot reverse the flow. The air source can only enter the pneumatic actuator to drive the shut-off valve to switch. When the cylinder needs to exhaust, the first solenoid valve is de-energized, and the pneumatic control valve reverses the exhaust direction. When the second solenoid valve is energized, the air source inside the pneumatic actuator simultaneously exhausts air from both the pneumatic control valve and the three-way valve, accelerating the exhaust speed and completing the rapid switching of the shut-off valve. When one of the first solenoid valves or the pneumatic control valve malfunctions, requiring emergency exhaust and reset of the cylinder on the pneumatic actuator, the spring inside the pneumatic actuator automatically rebounds, completing the exhaust. When the cylinder on the pneumatic actuator requires emergency air intake, the state of the three-way valve is switched, connecting the interface on the three-way valve. Air from the filter pressure reducing valve enters the three-way valve and the check valve, and directly enters the pneumatic actuator, achieving emergency air intake. Air enters from the filter pressure reducing valve and is controlled by the first solenoid valve and the pneumatic control valve. The entire exhaust air path structure is simple, easy to operate, and performs better than traditional methods. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a rapid exhaust gas path structure according to the present invention.

[0015] Figure 2 This is a schematic diagram of the first solenoid valve and the pneumatic control valve in a rapid exhaust gas path structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the second solenoid valve in a rapid exhaust gas path structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the pneumatic actuator in a rapid exhaust air path structure according to this utility model.

[0018] In the diagram: 1. Filter pressure reducing valve; 2. First solenoid valve; 3. Second solenoid valve; 4. Pneumatic control valve; 5. Three-way valve; 6. Check valve; 7. Pneumatic actuator; 8. Shut-off valve. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-4 As shown, a rapid exhaust air circuit structure includes a pneumatic actuator 7, which is connected to a one-way valve 6, a pneumatic control valve 4, and a shut-off valve 8. A second solenoid valve 3 is installed on the one-way valve 6, which is connected to a three-way valve 5. Both the three-way valve 5 and the pneumatic control valve 4 are connected to a first solenoid valve 2 and a filter pressure reducing valve 1, and the filter pressure reducing valve 1 is connected to the first solenoid valve 2. This structure is used for a single-acting cylinder to realize emergency opening and closing and accelerate the cylinder exhaust time.

[0023] Furthermore, the three-way valve 5 is equipped with interface 1, interface 2 and interface 3.

[0024] Furthermore, the air source enters the filter pressure reducing valve 1 for pressure reduction, the first solenoid valve 2 and the pneumatic control valve 4 are in the closed state, and air is allowed through interface 1 and interface 2 of the three-way valve 5. At this time, air cannot enter.

[0025] Furthermore, when the cylinder needs to be energized, the first solenoid valve 2 is energized, and the air source passes through the first solenoid valve 2, controlling the pneumatic control valve 4 to open the air path. The air source enters through the pneumatic control valve 4, the second solenoid valve 3 is not energized, and the one-way valve 6 cannot flow backward. The air source can only enter the pneumatic actuator 7 to drive the shut-off valve 8 to switch.

[0026] Furthermore, when the cylinder needs to exhaust air, the first solenoid valve 2 is de-energized, the pneumatic control valve 4 switches to exhaust air, and at the same time the second solenoid valve 3 is energized. The air source in the pneumatic actuator 7 exhausts air from both the pneumatic control valve 4 and the three-way valve 5, accelerating the exhaust speed and completing the rapid switching of the shut-off valve 8.

[0027] Furthermore, when one of the first solenoid valve 2 and the pneumatic control valve 4 malfunctions, and the cylinder of the pneumatic actuator 7 needs to be urgently vented and reset, the spring inside the pneumatic actuator 7 will automatically return to complete the venting.

[0028] Furthermore, when the cylinder of the pneumatic actuator 7 needs emergency air intake, the state of the three-way valve 5 is switched, and the ports 1 and 3 on the three-way valve 5 are connected. The air source passing through the filter pressure reducing valve 1 enters the three-way valve 5 and the one-way valve 6 and directly enters the pneumatic actuator 7 to achieve emergency air intake.

[0029] Furthermore, the air source enters through the filter pressure reducing valve 1, and the air intake is controlled by the first solenoid valve 2 and the air control valve 4.

[0030] Working Principle: This utility model includes a filter pressure reducing valve 1, a first solenoid valve 2, a second solenoid valve 3, a pneumatic control valve 4, a three-way valve 5, a one-way valve 6, a pneumatic actuator 7, and a shut-off valve 8. It is used for a single-acting cylinder to achieve emergency opening and closing, and to accelerate cylinder exhaust time. Air pressure is reduced at the filter pressure reducing valve 1. The first solenoid valve 2 and the pneumatic control valve 4 are closed. Air is allowed through ports 1 and 2 of the three-way valve 5, preventing air intake. When the cylinder needs air intake, the first solenoid valve 2 is energized, and air flows through it, controlling the pneumatic control valve 4 to open the air path. Air enters through the pneumatic control valve 4. The second solenoid valve 3 is de-energized, and the one-way valve 6 cannot reverse flow. Air can only enter the pneumatic actuator 7 to drive the shut-off valve 8 for switching. When the cylinder needs exhaust, the first solenoid valve 2 is de-energized, and the first solenoid valve 2 and the second solenoid valve 3 are closed, controlling the pneumatic control valve 4 to open the air path. Air enters through the pneumatic control valve 4. The second solenoid valve 3 is de-energized, and the one-way valve 6 cannot reverse flow. Air can only enter the pneumatic actuator 7 to drive the shut-off valve 8 for switching. When the cylinder needs exhaust, the first solenoid valve 2 is de-energized, and the first solenoid valve 3 is closed, controlling the pneumatic control valve 4 to open the air path. The second solenoid valve 3 is de-energized, and the one-way valve 6 cannot reverse flow. Air can only enter the pneumatic actuator 7 to drive the shut-off valve 8 for switching. When solenoid valve 2 is de-energized, pneumatic control valve 4 reverses and exhausts air. At the same time, second solenoid valve 3 is energized, and the air source in pneumatic actuator 7 exhausts air from both pneumatic control valve 4 and three-way valve 5, accelerating the exhaust speed and completing the rapid switching of shut-off valve 8. When one of the first solenoid valve 2 and pneumatic control valve 4 malfunctions, and the upper cylinder of pneumatic actuator 7 needs emergency exhaust and reset, the spring in pneumatic actuator 7 automatically rebounds to complete the exhaust. When the upper cylinder of pneumatic actuator 7 needs emergency air intake, the state of three-way valve 5 is switched, and interface 1 and interface 3 on three-way valve 5 are connected. The air source from filter pressure reducing valve 1 enters three-way valve 5 and check valve 6 and directly enters pneumatic actuator 7 to achieve emergency air intake. The air source enters at filter pressure reducing valve 1 and is controlled by the first solenoid valve 2 and pneumatic control valve 4.

[0031] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rapid exhaust air path structure, comprising a pneumatic actuator (7), characterized in that: The pneumatic actuator (7) is connected to a check valve (6), a pneumatic control valve (4) and a shut-off valve (8). A second solenoid valve (3) is provided on the check valve (6). A three-way valve (5) is connected to the check valve (6). Both the three-way valve (5) and the pneumatic control valve (4) are connected to a first solenoid valve (2) and a filter pressure reducing valve (1). The filter pressure reducing valve (1) is connected to the first solenoid valve (2).

2. The rapid exhaust gas path structure according to claim 1, characterized in that: The three-way valve (5) is provided with interface 1, interface 2 and interface 3.

3. The rapid exhaust gas path structure according to claim 1, characterized in that: When the air source enters the filter pressure reducing valve (1) for pressure reduction, the first solenoid valve (2) and the air control valve (4) are in the closed state, and air is allowed through the port 1 and port 2 of the three-way valve (5). At this time, air cannot enter.

4. The rapid exhaust gas path structure according to claim 1, characterized in that: When the cylinder needs to be filled with air, the first solenoid valve (2) is energized, and the air source passes through the first solenoid valve (2), controlling the pneumatic control valve (4) to connect the air path. The air source enters from the pneumatic control valve (4), the second solenoid valve (3) is not energized, and the one-way valve (6) cannot flow backward. The air source can only enter the pneumatic actuator (7) to drive the shut-off valve (8) to switch.

5. The rapid exhaust gas path structure according to claim 1, characterized in that: When the cylinder needs to exhaust air, the first solenoid valve (2) is de-energized, the pneumatic control valve (4) switches to exhaust air, and at the same time the second solenoid valve (3) is energized. The air source in the pneumatic actuator (7) exhausts air from both the pneumatic control valve (4) and the three-way valve (5) to speed up the exhaust speed and complete the rapid switching of the shut-off valve (8).

6. The rapid exhaust gas path structure according to claim 1, characterized in that: When one of the first solenoid valve (2) and the pneumatic control valve (4) malfunctions, and the cylinder of the pneumatic actuator (7) needs to be urgently vented and reset, the spring inside the pneumatic actuator (7) will automatically rebound to complete the venting.

7. The rapid exhaust gas path structure according to claim 1, characterized in that: When the cylinder of the pneumatic actuator (7) is in emergency air intake, the state of the three-way valve (5) is switched, and the interface 1 and interface 3 on the three-way valve (5) are connected. The air source passing through the filter pressure reducing valve (1) enters the three-way valve (5) and the one-way valve (6) and directly enters the pneumatic actuator (7) to realize emergency air intake.

8. The rapid exhaust gas path structure according to claim 1, characterized in that: The air source enters through the filter pressure reducing valve (1) and is controlled by the first solenoid valve (2) and the air control valve (4).

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