TWI711781B - Pendulum valve - Google Patents

Abstract

A pendulum valve is disclosed. The pendulum valve comprises: a valve body, a gate plate, a rotation shaft, a first drive mechanism, and a second drive mechanism. The valve body is hollow and has a first opening. The gate plate is movably located inside the valve body. The rotation shaft is connected to the gate plate. The first drive mechanism is designed to rotate the gate plate via the rotation shaft such that the position of is gate plate is shifted to aim at the first opening or be away from the first opening. The second drive mechanism is designed to raise up or down the gate plate such that the gate plate can close or open the first opening.

Description

Pendulum valve

This creation is about a kind of valve, especially a kind of pendulum valve.

Valve type devices are often used between fluid pipelines. They are mainly used for flow, pressure control, adjustment, steering, check, start or stop flow, etc. of the fluid in the pipeline. There are quite a few types of valves, and each type of valve is applicable due to different types of fluids used in water pipes, oil pressure or air pressure, or different preset functions. In terms of the structure of commonly used vacuum valves, they are mainly divided into gate valves with straight opening and closing actions, butterfly valves with rotary opening and closing actions, and pendulum valves with rocker opening and closing actions.

However, due to the heavy weight of the gate, the large pendulum valve is likely to have a poor sealing effect due to tilting and affect the air-tight effect after rotating the gate many times.

In view of the above-mentioned problems of the prior art, one purpose of this creation is to provide a pendulum valve to solve the problem of poor sealing effect caused by the tilt of the gate.

To achieve the foregoing objective, this creation proposes a pendulum valve at least including a valve body, a gate, a rotating shaft, a first driving mechanism and a second driving mechanism. The valve body is hollow and has at least a first valve port. brake The plate is movable in the valve body. The rotating shaft is connected to the gate. The first driving mechanism rotates through the driving rotating shaft to rotate the gate, so that the position of the gate corresponds to the first valve port or is far away from the first valve port. The second driving mechanism lifts and lowers the gate through the driving rotation shaft, so that the gate abuts against or away from the first valve port to close or open the first valve port.

Wherein, the first driving mechanism and/or the second driving mechanism are pneumatic cylinders.

Wherein, the second driving mechanism includes at least a first pneumatic cylinder arranged on the valve body, and the first piston plate of the first pneumatic cylinder is used to abut the rotating shaft to drive the rotating shaft and the gate in a direction away from the first valve port Longitudinal displacement.

Wherein, a wave spring is further provided between the rotating shaft and the first piston plate, and the first piston plate of the first pneumatic cylinder pushes the rotating shaft through the wave spring.

Wherein, the pendulum valve further includes at least a thrust bearing, wherein when the rotating shaft is linked with the gate plate to move longitudinally to open the first valve port and to move laterally away from the first valve port, the thrust bearing bears at least one supporting portion of the rotating shaft The push top.

Among them, the first pneumatic cylinder has a first cylinder, and the rotating shaft is used as the first piston rod of the first cylinder. When the first cylinder is inflated, the first piston plate of the first pneumatic cylinder is pushed up by the gas pressure To drive the rotating shaft and the gate to move longitudinally away from the first valve port.

Wherein, the first pneumatic cylinder has a first cylinder and a second cylinder, and the rotating shaft is used as the first piston rod of the first cylinder and the second cylinder at the same time. When the first cylinder and the second cylinder are inflated, The first piston plate in the first cylinder and the supporting part of the rotating shaft in the second cylinder are pushed up by gas pressure to cause the supporting part of the rotating shaft and the first piston plate of the first pneumatic cylinder to move longitudinally.

Wherein, the second driving mechanism includes a second air cylinder arranged on the valve body, and the second piston rod of the second air cylinder selectively pushes up the gate or leaves the moving path of the gate.

The second pneumatic cylinder further includes a return spring. When the second pneumatic cylinder is deflated, the return spring causes the second piston rod of the second pneumatic cylinder to protrude outward to push up the gate. When the second pneumatic cylinder is inflated, The second piston rod of the second pneumatic cylinder is retracted to leave the moving path of the gate.

Among them, the gate has a sealing element, and the return spring pushes the gate through the sealing element.

In summary, the pendulum valve of this creation can have one or more of the following advantages:

(1) The pendulum valve of this creation is actuated by a two-stage drive gate to open or close the valve port. When you want to close the valve port, first rotate the gate horizontally to make the position of the gate correspond to the valve port, and then vertically raise the height of the gate to close the valve port in an airtight manner.

(2) Rotate the gate and lift the gate through a single rotating shaft, which has low cost and can effectively use the accommodating groove space of the valve body.

(3) The piston rod of the pneumatic cylinder can be moved by inflation/deflation, which can drive the rotating shaft and the gate to rise and fall. Moreover, the return spring can accumulate spring compression force when the gate is away from the valve port, so that when the second pneumatic cylinder is inflated, the return spring will provide a return force (accumulated compression force), so that the gate can close the valve more tightly. mouth.

(4) Suitable for large pendulum valves.

In order to enable Junshen to have a further understanding and understanding of the technical features of this creation and the technical effects that can be achieved, I would like to provide a better embodiment and detailed explanation as follows.

10: Valve body

11: The first valve port

12: The second valve port

13: holding tank

15: The first half

17: second half

19: Piercing

20: Ram

30: The first drive mechanism

41: The first pneumatic cylinder

410: First cylinder

411: First Piston Plate

412: Wave Spring

413: Thrust bearing

413, 423, 433: air chamber

415: Thrust bearing

42: The second pneumatic cylinder

420: second cylinder

421: second piston rod

430: Third cylinder

50: rotating shaft

51: Support Department

52: limit chute

53: indicator

62: return spring

70: Extension board

80: connecting element

86: curved rod

88: clamp

L-L’: Section line

91: Outer cover

Figure 1 is a three-dimensional exploded schematic diagram of the pendulum valve created.

Figure 2 is a schematic top view of the pendulum valve created.

Figure 3 is a schematic top view of the pendulum valve created, with the outer cover removed.

Figure 4 is a schematic cross-sectional view of the pendulum valve created, in which the position of the gate corresponds to the first valve port and abuts against the first valve port (the pendulum valve is closed).

Figure 5 is a schematic cross-sectional view of the pendulum valve created, in which the position of the gate corresponds to the first valve port, but does not abut the first valve port (the pendulum valve is open).

Figure 6 is a schematic cross-sectional view of the pendulum valve of this creation, where the position of the gate does not correspond to the first valve port.

Figure 7 is a partial enlarged view of Figure 4.

Fig. 8 is a partial enlarged view of Fig. 5.

In order to help understand the technical features, content and advantages of this creation and its achievable effects, this creation is combined with the diagrams, and detailed descriptions are given in the form of embodiments as follows, and the diagrams used therein are only To illustrate and supplement the manual, it may not be the true proportions and precise configuration after the implementation of this creation. Therefore, the proportion and configuration relationship of the attached drawings should not be interpreted or limited to the scope of rights of the creation in actual implementation. In addition, in order to facilitate understanding, the same elements in the following embodiments are indicated by the same symbols. In addition, the size ratios of the components shown in the drawings are only for the convenience of explaining the components and their structures, and are not for limitation.

In addition, the terms used in the entire specification and the scope of the patent application, unless otherwise specified, usually have the usual meaning of each term used in the field, in the content disclosed here, and in the special content. Some terms used to describe this creation will be discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance on the description of this creation.

Regarding the use of "first", "second", "third", etc. in this article, it does not specifically refer to the order or sequence, nor is it used to limit the creation, but only to distinguish components described in the same technical terms Or operation only.

Secondly, if the terms "including", "including", "having", "containing", etc. are used in this article, they are all open terms, which means including but not limited to.

Please refer to Figures 1 to 8 together. Figure 1 is a three-dimensional exploded schematic diagram of the pendulum valve created; Figure 2 is a schematic top view of the pendulum valve created; Figure 3 is a schematic top view of the pendulum valve created. The outer cover has been removed; Figure 4 is a schematic cross-sectional view of the pendulum valve created, in which the position of the gate corresponds to and abuts the first valve port (the pendulum valve is closed); Figure 5 is the pendulum valve created The cross-sectional schematic diagram of the pendulum valve, where the position of the gate plate corresponds to the first valve port, but does not abut the first valve port (the pendulum valve is open); Figure 6 is a schematic cross-sectional view of the pendulum valve in this creation, where the position of the gate plate does not correspond to the first valve port A valve port; Figure 7 is a partial enlarged view of Figure 4; Figure 8 is a partial enlarged view of Figure 5. Among them, Figures 4 to 8 are schematic cross-sectional views taken along the section line L-L' in Figure 2.

The pendulum valve of this creation at least includes a valve body 10, a gate 20, a rotating shaft 50, a first driving mechanism 30 and a second driving mechanism. The valve body 10 is hollow and has an accommodation groove 13, a first valve port 11 and a second valve port 12, wherein the first valve port 11 and the second valve port 12 communicate with two opposite sides of the accommodation groove 13. Moreover, the valve body 10 may be, for example, a single structure or a combined structure. For example, the valve body 10 is formed by an airtight combination of the first half 15 and the second half 17, and the first valve port 11 and the second valve port 12 are located on the second half 17, for example. The gate 20 is movably arranged in the containing groove 13 of the valve body 10. The gate 20 of the present invention can be longitudinally displaced in the accommodating groove 13 of the valve body 10, and the position can be moved by lifting height and lateral displacement. A feature of this creation is that the gate 20 is arranged at one end of the rotating shaft 50 and is moved by the rotation of the rotating shaft 50 and the vertical (vertical) lifting of the rotating shaft 50 to achieve the purpose of opening or closing the first valve port 11. That is, the phase between the gate 20 and the rotating shaft 50 The position will not change, but the relative position of the gate 20 and the rotating shaft 50 with respect to the first valve port 11 of the valve body 20 will change.

The rotation shaft 50 of the present creation is driven by the first driving mechanism 30 to rotate, so that the gate 20 is rotated synchronously, that is, the gate 20 is moved laterally to move the position. Therefore, the first driving mechanism 30 can be used to make the position of the gate 20 correspond to the first valve port 11 or not correspond to the first valve port 11.

In addition, the rotating shaft 50 is longitudinally displaced by the driving of the second driving mechanism, so that the gate 20 is longitudinally displaced synchronously. That is, when the rotating shaft 50 is displaced in a direction close to the first valve port 11, the gate 20 will sealably abut the first valve port 11 to close the first valve port 11. When the rotating shaft 50 is displaced in a direction away from the first valve port 11, the gate 20 will be moved away from the first valve port 11 to open the first valve port 11.

The second driving mechanism of the pendulum valve of this creation includes a first pneumatic cylinder 41 and a second pneumatic cylinder 42, and the second driving mechanism is used to drive the gate 20 to move up and down via the rotating shaft 50, that is, to drive the rotating shaft 50 longitudinally. The displacement is used to drive the shutter 20 to move up and down along another plane (for example, the YZ plane). In other words, when the first valve port 11 of the pendulum valve is to be closed, the first driving mechanism 30 first drives the gate 20 to rotate via the rotating shaft 50, and makes the position of the gate 20 correspond to the first valve port 11, and then drives the second The mechanism then drives the gate 20 to move vertically via the rotating shaft 50 so that the gate 20 sealingly abuts against the valve body 10 at the first valve port 11. Conversely, when the first valve port 11 of the pendulum valve is to be opened, the second driving mechanism first drives the gate plate 20 to move vertically through the rotating shaft 50, so that the gate plate 20 is a certain distance from the valve body 10 at the first valve port 11. Then the first driving mechanism 30 drives the gate 20 to rotate via the rotating shaft 50, so that the position of the gate 20 does not correspond to the first valve port 11, and for example, makes the gate 20 move from the second half 17 to the first half 15.

In this creation, the first driving mechanism 30 drives the shutter 20 to move in a rotational manner (moving the position of the shutter 20 through rotation), that is, drives the shutter 20 to rotate on a plane (such as an XY plane). Turning over During the process, the gate 20 is constantly located between the first valve port 11 and the second valve port 12, keeping a distance from each other, that is, the gate 20 does not contact the first valve port 11 and the second valve port 12 to avoid friction loss. The direction in which the rotating shaft 50 and the gate 20 rotate is substantially perpendicular to the direction in which the rotating shaft 50 and the gate 20 rise and fall. For example, as mentioned above, the rotating shaft 50 and the shutter 20 can be rotated on the XY plane and raised and lowered on the YZ plane. The aforementioned rotating and lifting planes are only examples, and this creation is not limited to this.

Wherein, the first driving mechanism 30 and/or the second driving mechanism may be, for example, a pneumatic cylinder, but it is not limited thereto. The first driving mechanism 30 and/or the second driving mechanism may also be, for example, hydraulic cylinders or other suitable driving mechanisms. The first driving mechanism 30 of the present invention is firmly arranged on the valve body 10, and the first driving mechanism 30 of the present invention is, for example, a pneumatic cylinder whose piston rod moves linearly. The piston rod of the first driving mechanism 30 of this invention is pivotally connected to a connecting element 80, and the first driving mechanism 30 slidably clamps the shaft of the rotating shaft 50 through the connecting element 80, so the piston rod that moves in a straight line can Turn the rotating shaft 50. Moreover, the connecting element 80 slidably clamps the shaft body of the rotating shaft 50, so the rotating shaft 50 can be raised and lowered independently.

Another feature of this creation is that the rotating shaft 50 can be driven by the second driving mechanism, so that the rotating shaft 50 can be longitudinally displaced independently of the connecting element 80. That is, when the rotating shaft 50 is longitudinally displaced, the relative position of the rotating shaft 50 and the connecting element 80 will change with the degree of the longitudinal displacement of the rotating shaft 50. However, as mentioned above, when the rotating shaft 50 rotates, the relative position of the rotating shaft 50 and the connecting element 80 is fixed.

In this creation, the shutter 20 is rotated through the rotation shaft 50, wherein the shutter 20 is rotated (lateral displacement) by taking the axis of the rotation shaft 50 as the rotation axis. The shape and size of the gate 20 are determined by the shape and size of the valve body 10 and its first valve port 11, so the gate 20 of the present invention is not limited to a specific shape and size. In the pendulum valve of the present invention, the rotation shaft 50 is preferably arranged at a distance from the first valve port 11, and the rotation shaft 50 is preferably connected to the gate 20 through the through hole 19 of the valve body 10. In addition, The shutter 20 can be directly or indirectly connected to the rotating shaft 50. For example, the rotating shaft 50 can be detachably connected to the extension plate 70 through screwing, locking, snapping, or socketing, so as to connect the gate 20 through the extension plate 70. Alternatively, the shutter 20 may also be fixedly connected to the extension plate 70 by means of integral molding or welding, so that the shutter 20 is connected via the extension plate 70. The length value of the extension plate 70 is, for example, but not limited to, the same as the value of the distance between the rotating shaft 50 and the first valve port 11.

Another feature of this creation is that the gate 20 is moved up and down through the rotating shaft 50, and the second driving mechanism can raise and lower the height through the driving rotating shaft 50, thereby driving the gate 20 to abut against the receiving groove 13 of the valve body 10 Or away from the first valve port 11. Although the closing or opening of the first valve port 11 is taken as an example in this article, it should be understood that the gate 20 can also be designed to close or open the second valve port 12. In addition, a fixed indicator 53 can be selectively provided on the outer side or one side of the rotating shaft 50, such as on the housing of the first driving mechanism 30 and around the rotating shaft 50. The surface of the rotating shaft 50 can be, for example, With a marking part (such as an arrow), the first valve port 11 of the pendulum valve of the present invention can be displayed in an open or closed state by rotating the rotating shaft 50.

In detail, as shown in the figure, the shaft system of the rotating shaft 50 of the present creation penetrates the perforation 19 of the valve body 10 and extends from the outside to the accommodating groove 13 of the valve body 10 to connect the gate 20. The connecting element 80 of the present invention may include an arc-shaped rod 86 and a clamping member 88, for example. One end of the clamping member 88 of the connecting element 80 is a limit sliding groove 52 that slidably clamps the rotating shaft 50. The other end of the clamping member 88 is pivotally connected to one end of the arc-shaped rod 86, and the other end of the arc-shaped rod 86 is pivotally connected to the piston rod of the first driving mechanism 30, so through the piston rod of the first driving mechanism 30 The linear motion can drive the rotating shaft 50 to rotate, thereby linking the gate 20 to rotate (lateral displacement).

The second driving mechanism of the present invention includes a first pneumatic cylinder 41 arranged on the valve body 10. The first pneumatic cylinder 41 may, for example, have a first cylinder 410 and a first piston plate 411. Rotating shaft 50 is used as the first air pressure The first piston rod of the cylinder 41. The first cylinder body of the first pneumatic cylinder 41 has a movable first piston plate 411, and the rotating shaft 50 penetrates the first piston plate 411 of the first pneumatic cylinder 41, for example. The first piston plate 411 of the first pneumatic cylinder 41 abuts against the rotating shaft 50 to thereby move the rotating shaft 50 longitudinally. For example, when the air chamber 413 of the first pneumatic cylinder 41 is inflated, that is, when the gas is supplied below the first piston plate 411 of the first pneumatic cylinder 41, the first piston plate 411 will be pushed up by the gas pressure , Thereby pushing the rotating shaft 50 to move upward. Another feature of this creation is that a wave spring 412 is optionally provided between the rotating shaft 50 and the first piston plate 411. Therefore, the first piston plate 411 of the first pneumatic cylinder 41 can longitudinally push the rotating shaft 50 via the wave spring 412. With the assistance of the wave spring 412, not only can the rotating shaft 50 be vertically raised and lowered, but also the gate plate 20 can be prevented from being deformed due to uneven force.

Another feature of this creation is to have at least one thrust bearing 415 more selectively. The thrust bearing 415 is provided on the periphery of the perforation 19 of the gate body 10 and is located between the gate body 10 and the abutment portion 51 of the rotating shaft 50 . Therefore, when the rotating shaft 50 moves longitudinally for a certain distance, the thrust bearing 415 can bear the push of the at least one abutment portion 51 of the rotating shaft 50, thereby linking the longitudinal movement of the gate 20 to open the first valve port 11 and make the gate 20 can be maintained at this height. Moreover, when the rotating shaft 50 moves the gate 20 to move laterally so as to move away from the first valve port 11, the thrust bearing 415 also bears the push of the supporting portion 51 of the rotating shaft 50, so that the gate 20 can be held at This height.

The first pneumatic cylinder 41 of the second driving mechanism of the present invention can also optionally include a third cylinder 430, wherein the rotating shaft 50 serves as the piston rod of the first cylinder 410 and the third cylinder 430 at the same time. That is, the rotating shaft 50 penetrates the first cylinder 410 and the third cylinder 430 at the same time. The abutting portion 51 protrudes from the surface of the rotating shaft 50, and the abutting portion 51 is located in the third cylinder 430 to serve as a piston plate of the third cylinder 430. Therefore, when gas is supplied to the gas chamber 433 of the third cylinder 430, the supporting portion 51 of the rotating shaft 50 will be pushed upward by the gas pressure until it abuts the thrust bearing 415. Because the shutter 20 of this creation will be pushed by the rotating shaft 50 The first valve port 11 is moved to open, and the gate 20 will also move with the rotation of the rotating shaft 50. Therefore, the above-mentioned thrust bearing 415 can make the rotating shaft 50 perform at the same time while maintaining the top position. Rotate.

In this creation, since the position of the first pneumatic cylinder 41 will not move in the horizontal direction and the vertical direction, the position of the connecting element 80 will not move in the vertical direction, and it penetrates the first cylinder 410 and the third cylinder 430 at the same time. The rotating shaft 50 is longitudinally displaced and rotated. Therefore, another feature of the present creation is that the rotating shaft 50 has at least one limiting chute 52, and the rotating shaft 50 has at least one flat surface in the limiting chute 52 for the clamping member 88 of the connecting element 80 to slide. Clamping is used to rotate the rotating shaft 50, so that the rotating shaft 50 can not only be rotated by the first driving mechanism 30 through the connecting element 80, but can also be driven by the second driving mechanism to move longitudinally relative to the connecting element 80.

As shown in the figure, the present creation can also have seals such as gaskets or O-rings located between the rotating shaft 50 and the first pneumatic cylinder 41, and between the rotating shaft 50 and the perforation 19 of the valve body 10. For example, the area of the rotation shaft 50 outside the plane of the limit chute 52 is preferably a cylindrical body, the first pneumatic cylinder 41 is preferably ring-shaped and is preferably arranged around the rotation shaft 50, and the valve The perforation 19 of the body 10 is preferably circular. Therefore, with the above-mentioned seal, the pendulum valve of the present invention can still maintain an air-tight effect during the rotation and lifting of the rotating shaft 50.

In addition, the second driving mechanism of the present invention further includes a second pneumatic cylinder 42 arranged on the valve body 10. The second pneumatic cylinder 42 has a second cylinder 420, a second piston rod 421 and a return spring 62. The second piston rod 421 is, for example, L-shaped or T-shaped. The second pneumatic cylinder 42 is preferably annular, and is preferably arranged around the second valve port 12 of the valve body 10. When the gas in the second pneumatic cylinder 42 is discharged, the second piston rod 421 in the second pneumatic cylinder 42 will protrude outward by the restoring force of the return spring 62, by pressing against the O on the gate 20 Seals such as ring or gasket, so that the gate 20 sealingly abuts the first valve port 11 to close the first Valve port 11. In addition, the present invention can also have seals such as gaskets or O-rings located between the second piston rod 421 of the second pneumatic cylinder 42 and the second cylinder 420.

In addition, when the second pneumatic cylinder 42 is inflated (to fill the air chamber 423 of the second pneumatic cylinder 42), the second piston rod 421 will retract and leave the moving path of the gate 20 at this time, and the return spring 62 Can accumulate spring compression force. However, the setting position of the air chamber 423 and the form of the return spring 62 can be determined by the return operation of the spring, and this creation is not limited to the above examples. In addition, the air chamber 413 of the first pneumatic cylinder 41 and the air chamber 423 of the second pneumatic cylinder 42 can be filled and exhausted by, for example, a valve, a gas passage, and a gas supply source. However, for the sake of simplification of the illustration, it is not Illustrated. However, those with ordinary knowledge in the technical field to which this creation belongs should be able to understand how to set up the above structure, so I will not repeat it.

In this creation, the rotating shaft 50 is moved in a direction away from the first valve port 1 so that the gate 20 is kept at a distance from the first valve port 11 to open the first valve port 11. In detail, the rotating shaft 50 and the second piston rod 421 of the second pneumatic cylinder 42 are displaced in the same direction, so that the gate 20 is away from the first valve port 11 and opens the first valve port 11. Wherein, the rotating shaft 50 and the second piston rod 412 may rise or fall synchronously or asynchronously, for example. For example, when the first valve port 11 is to be opened, the air chamber 423 of the second pneumatic cylinder 42 can be inflated to make the second piston rod 421 move away from the first valve port 11, and then the first pneumatic cylinder The air chamber 413 of 41 is inflated so that the rotating shaft 50 moves toward the first valve port 11, thereby driving the gate 20 to rise to open the first valve port 11. Subsequently, the first driving mechanism 30 is used to drive the rotating shaft 50 to rotate, so as to drive the gate 20 to rotate so that its position is far away from the first valve port 11.

Alternatively, the air chamber 413 of the first pneumatic cylinder 41 and the air chamber 423 of the second pneumatic cylinder 42 can also be inflated synchronously, so that the rotating shaft 50 and the second piston rod 421 rise synchronously to drive the gate 20 to rise away from the first Valve port 11. Wherein, when the rotating shaft 50 moves the gate 20 in a rotating manner, the gate 20 is preferably a gap away from the second piston rod 421 of the second pneumatic cylinder 42 to avoid wear. Among them, whether it is synchronized Or asynchronous inflation, the movement distance of the second piston rod 421 is slightly greater than the movement distance of the rotating shaft 50, so that the gate 20 can be suspended between the second piston rod 421 and the first valve port 11, and maintain a certain distance .

In this creation, the number of the first driving mechanism 30 and the first pneumatic cylinder 41 may be one, for example, and the second pneumatic cylinder 42 may be one or more, but it is not limited thereto. For example, taking a single second pneumatic cylinder 42 as an example, it may have a plurality of return springs 62 evenly distributed around the first valve port 11, so that the gate 20 can be raised and lowered with equal force.

The operating mode of the pendulum valve of the present creation can be as follows: when the first valve port 11 is to be closed, the first drive mechanism 30 drives the connecting element 80 to drive the rotation shaft 50 to rotate, and the gate 20 is rotated horizontally, so that The gate 20 moves from the outside of the first valve port 11 to a position corresponding to the first valve port 11, that is, the gate 20 corresponds to the first valve port 11. In order to avoid hindering the movement of the gate 20, when the gate 20 is to be rotated, the air chamber 423 of the second pneumatic cylinder 42 is preferably in an inflated state, so that the second piston rod 421 is first retracted, and then the gate 20 The rotation makes the second piston rod 421 avoid the moving path of the gate 20, that is, the second piston rod 421 does not contact the gate 20. Then, the air chamber 413 of the first pneumatic cylinder 41 and the air chamber 423 of the second pneumatic cylinder 42 in the second driving mechanism are exhausted, and the gate 20 is moved longitudinally by the restoring force of the return spring 62 until it abuts against the first One valve port 11.

Subsequently, if the first valve port 11 is to be opened, the first pneumatic cylinder 41 can be inflated (air chamber 413 is inflated), by pushing the first piston plate and the rotating shaft 50 thereon toward the first valve port 11, The interlocking gate 20 can be moved away from the first valve port 11. In addition, at the same time, the second pneumatic cylinder 42 is inflated (the air chamber 423 is inflated), so that the return spring 62 is contracted inward (accumulated restoring force), and the second piston rod 421 is displaced inwardly away from the moving path of the gate 20. Moreover, the gate 20 can be a distance away from the valve body 10 and the second piston rod 421, that is, they are not in contact with each other, so the rotating shaft 50 only needs to rotate again to make the gate 20 move in a rotary position.

In addition, as mentioned above, due to the spring compression force accumulated by the return spring 62, the return force can be provided when the gate 20 is displaced in the direction of the first valve port 11. Therefore, the gate 20 can seal the first valve port more tightly. 11.

In this creation, airtight elements such as O-rings or washers can be selectively provided on the gate 20, the rotating shaft 50 and the second piston rod 421 to achieve a good airtight effect.

In summary, the pendulum valve of this creation can have one or more of the following advantages: (1) The pendulum valve of this creation is actuated by a two-stage drive gate to open or close the valve port. When you want to close the valve port, first rotate the gate horizontally to make the position of the gate correspond to the valve port, and then vertically raise the height of the gate to close the valve port in an airtight manner. (2) Rotate the gate and lift the gate through a single rotating shaft, which has low cost and can effectively use the accommodating groove space of the valve body. (3) The piston rod of the pneumatic cylinder can be moved by inflation/deflation, which can drive the rotating shaft and the gate to rise and fall. Moreover, the return spring can accumulate spring compression force when the gate is away from the valve port, so that when the second pneumatic cylinder is inflated, the return spring will provide a return force (accumulated compression force), so that the gate can close the valve more tightly. mouth. (4) Suitable for large pendulum valves.

The above description is only illustrative, and not restrictive. Any equivalent modifications or changes that do not depart from the spirit and scope of this creation should be included in the attached scope of patent application.

10: Valve body

11: The first valve port

12: The second valve port

13: holding tank

19: Piercing

20: Ram

30: The first drive mechanism

41: The first pneumatic cylinder

411: First Piston Plate

412: Wave Spring

413, 423, 433: air chamber

415: Thrust bearing

42: The second pneumatic cylinder

420: second cylinder

421: second piston rod

430: Third cylinder

50: rotating shaft

51: Support Department

53: indicator

62: return spring

70: Extension board

88: clamp

91: Outer cover

Claims (8)

A pendulum valve at least includes: a valve body, which is hollow and has at least a first valve port; a gate, which is movably arranged in the valve body; a rotating shaft, which is connected to the gate; A first driving mechanism rotates the gate by driving the rotation shaft to rotate, so that the position of the gate corresponds to the first valve port or away from the first valve port; and a second driving mechanism drives the gate The rotating shaft is raised and lowered to raise and lower the gate, so that the gate abuts against or away from the first valve port to close or open the first valve port, wherein the second driving mechanism includes at least a first pneumatic cylinder disposed on the valve Body, a first piston plate of the first pneumatic cylinder is used to abut the rotation shaft to drive the rotation shaft and the gate to move longitudinally away from the first valve port, wherein the rotation shaft and the A wave spring is further provided between the first piston plates, and the first piston plate of the first pneumatic cylinder pushes the rotating shaft through the wave spring. For the pendulum valve described in item 1 of the scope of patent application, the first driving mechanism and/or the second driving mechanism are pneumatic cylinders. The pendulum valve described in item 1 of the scope of patent application further includes at least one thrust bearing, wherein when the rotating shaft is linked to the longitudinal displacement of the gate to open the first valve port, and laterally displaced away from the first valve port At this time, the thrust bearing bears the push of at least one supporting part of the rotating shaft. The pendulum valve described in item 3 of the scope of patent application, wherein the first pneumatic cylinder has a first cylinder, and the rotation shaft is used as a first piston rod of the first cylinder. When inflating, the first piston plate of the first pneumatic cylinder is pushed up by gas pressure to drive the rotating shaft and the gate to move longitudinally away from the first valve port. The pendulum valve described in item 3 of the scope of patent application, wherein the first pneumatic cylinder has a first cylinder and a second cylinder, and the rotating shaft is simultaneously used as the first cylinder and the second cylinder A first piston rod. When the first cylinder and the second cylinder are inflated, the abutment portion of the first piston plate in the first cylinder and the rotation shaft in the second cylinder is Being pushed by the gas pressure causes the abutment portion of the rotating shaft and the first piston plate of the first pneumatic cylinder to move longitudinally. As for the pendulum valve described in claim 1, wherein the second drive mechanism includes a second pneumatic cylinder arranged on the valve body, and a second piston rod of the second pneumatic cylinder selectively pushes the gate The movement path of the board or leaving the gate. The pendulum valve described in item 6 of the scope of patent application, wherein the second pneumatic cylinder further includes a return spring, and when the second pneumatic cylinder is deflated, the return spring makes the second piston rod of the second pneumatic cylinder When the second pneumatic cylinder is inflated, the second piston rod of the second pneumatic cylinder is retracted to leave the moving path of the gate. For the pendulum valve described in item 7 of the scope of patent application, the gate has a sealing element, and the return spring pushes the gate through the sealing element.

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