CN215059926U

CN215059926U - Quick-opening actuating mechanism control system and quick-opening valve

Info

Publication number: CN215059926U
Application number: CN202120988391.8U
Authority: CN
Inventors: 张其清; 潘建达; 郝文明; 王奕彤
Original assignee: Founder Valve Group Co ltd
Current assignee: Founder Valve Group Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-12-07
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses a quick-open actuating mechanism control system and quick-open valve, including the pressure air supply, the filter assembly, control valve I, fast row's subassembly and cylinder, the pressure air supply links to each other with the filter assembly, be provided with first pipeline between filter assembly and the cylinder, control valve I, fast row's subassembly sets gradually on first pipeline to the cylinder direction from the filter assembly, fast row's subassembly includes the exhaust shuttle valve, still be provided with the second pipeline between filter assembly and the cylinder, the second pipeline has set gradually control valve II and one-way choke valve to the cylinder direction along the filter assembly, the one-way choke valve is normal when the fluid direction is the direction of filter assembly to the cylinder and is the direction of cylinder to filter assembly return air and the velocity of flow is adjustable for the throttle; the utility model discloses opening time is fast, valve two-stage opening time is adjustable, and the buffering effect is obvious, improve life.

Description

Quick-opening actuating mechanism control system and quick-opening valve

Technical Field

The utility model relates to a valve control technical field, concretely relates to quick-open actuating mechanism control system and a quick-open valve.

Background

The quick-opening actuator control system for controlling the opening and closing of the quick-opening valve in the market at present comprises a pressure air source a and a pneumatic actuator e, wherein a pipeline is arranged between the pressure air source a and the pneumatic actuator e, a filter assembly b, a control valve c and an exhaust shuttle valve d are sequentially arranged on the pipeline from the pressure air source a to the pneumatic actuator e, when a controller f opens the control valve c, the control valve c enables the pressure air source a to supply air to the pneumatic actuator e through the pipeline, and when the controller f closes the control valve c, the pneumatic actuator e exhausts air through the exhaust shuttle valve d.

The general quick-opening butterfly valve adopts a three-eccentric center butterfly valve as a body structure; meanwhile, a spring is adopted for a general quick-opening valve to open quickly, the quick-opening buffer section is about the last 5 degrees, the end adjusting mechanism of the oil cylinder or the air cylinder is used for adjusting the final valve-opening time, the end structure of the air cylinder or the oil cylinder is complex, meanwhile, small-angle buffering is adopted, impact on the valve rod, the oil cylinder or the air cylinder is large, the service life of the valve rod, the oil cylinder or the air cylinder is influenced, and then the buffering time and the quick-opening angle are not adjustable. The opening time of 75 degrees before the conventional pneumatic quick-opening butterfly valve is more than 0.5S.

Disclosure of Invention

The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a quick-open actuating mechanism control system and quick-open valve.

In order to achieve the above purpose, the utility model provides a following technical scheme: a quick-opening actuating mechanism control system comprises a pressure air source, a filtering assembly, a first control valve, a quick-opening assembly and an air cylinder, wherein a rack rod, a gear and a compression spring are arranged in the air cylinder, the gear is installed in the air cylinder in a rotating mode, the rack rod is located in the transmission direction of a piston and is meshed with the gear to form linkage, the compression spring is located at one end, far away from the piston, of the rack rod, the pressure air source is connected with the filtering assembly, a first pipeline is arranged between the filtering assembly and the air cylinder, the first control valve and the quick-opening assembly are sequentially arranged on the first pipeline from the filtering assembly to the air cylinder direction, the quick-opening assembly comprises an exhaust shuttle valve, when the first control valve is closed, the quick-opening assembly is in an exhaust state, when the first control valve is opened, the quick-opening assembly is in a closed state, a second pipeline is further arranged between the filtering assembly and the air cylinder, and a second control valve and a one-way throttle valve are sequentially arranged on the second pipeline along the filtering assembly to the air cylinder direction, the control valve II has a first state that a pressure air source enters the air cylinder through a second pipeline and a second state that the air cylinder exhausts through the control valve II, the one-way throttle valve is normally conducted when the fluid direction is the direction from the filtering component to the air cylinder, and the one-way throttle valve is throttled and adjustable in flow rate when the fluid direction is the direction from the air cylinder to the filtering component.

As an optimized technical scheme of the utility model, the cylinder on be provided with the stroke feedback ware.

As a preferred technical scheme of the utility model, the second pipeline is located and is connected with the third pipeline between one-way throttle valve and the cylinder, be provided with control valve three on the third pipeline, control valve three has closed condition and makes the cylinder pass through the carminative open mode of control valve three.

As the utility model discloses a preferred technical scheme, the fast subassembly of arranging still including setting up check valve and the choke valve one on first pipeline, check valve and choke valve one are located between exhaust shuttle valve and the cylinder.

As an optimized technical scheme of the utility model, the fast subassembly of arranging is gas accuse check valve.

As an optimized technical scheme of the utility model, the second pipeline is provided with choke valve two on being located the pipeline between filter assembly and the control valve two.

As an optimized technical scheme of the utility model, filtering component is air supply two allies oneself with piece or air supply trigeminy piece.

As the utility model discloses a preferred technical scheme still includes the controller, the controller is connected with control valve one, control valve two, stroke feedback ware, the break-make of controller control valve one, control valve two and receive the stroke signal of stroke feedback ware feedback:

when the controller receives a quick opening instruction, the controller closes the first control valve and the second control valve, the first pipeline, the second pipeline and the cylinder where the first control valve and the second control valve are located are in an exhaust state, when a stroke signal fed back by the stroke feedback device is 70-80 degrees of valve opening, the controller opens the first pipeline of the first control valve, the first control valve and the cylinder belong to an air inlet state, the rest of gas media in the cylinder are emptied through the one-way throttle valve and the second control valve, and the valve is in a slow opening stage.

As a preferred technical scheme of the utility model, still include the controller, the controller is connected with control valve three, stroke feedback ware, the break-make of controller steerable control valve three and the stroke signal of receiving the feedback of stroke feedback ware:

when the controller receives the quick opening signal, the controller closes the third control valve, the third pipeline where the third control valve is located and the cylinder are in an exhaust state, when the stroke signal fed back by the stroke feedback device is 70-80 degrees of valve opening, the controller opens the third control valve, the third control valve is in an exhaust closing state, the rest of gas media in the cylinder are exhausted through the one-way throttle valve and the second control valve, and the valves are in a slow opening stage.

The utility model also provides a be equipped with as above open actuating mechanism control system's quick-open valve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up the first pipeline, the second pipeline, the third pipeline improves the opening and closing time of valve, it does not throttle to set up one-way throttle valve simultaneously, the displacement can be adjusted to the return air, when the first pipeline, when the third pipeline closes the exhaust, through the exhaust of second pipeline through one-way throttle valve regulation displacement, the buffering effect is obvious, it can adjust the switching of opening valve angle and two stages of quick adjustment valve opening to set up the stroke feedback ware, compare original small-angle buffering, to the valve rod, the impact of hydro-cylinder or cylinder is smaller, increase of service life. The valve opening position feedback adjustment is simple and convenient, the positioning is accurate, and the two-stage opening time is adjustable.

2. The quick-exhaust assembly adopts the cooperation of the exhaust shuttle valve, the one-way valve and the throttle valve, is suitable for the occasions with large cylinder volume, and has more stable exhaust.

3. The quick-discharging component adopts a pneumatic control one-way valve, and can be suitable for occasions with small cylinder volume.

Drawings

Fig. 1 is a schematic diagram of a conventional control system of a quick-opening actuator.

Fig. 2 is a schematic diagram of an embodiment of the present invention.

Reference numerals: 1. a pressurized gas source; 2. a filter assembly; 3. a cylinder; 31. a trip feedback device; 32. a rack bar; 33. a gear; 34. a compression spring; 4. a first pipeline; 41. a first control valve; 42. a fast row assembly; 421. an exhaust shuttle valve; 422. a one-way valve; 423. a first throttling valve; 5. a second pipeline; 51. a second control valve; 52. a one-way throttle valve; 53. a second throttle valve; 6. a third pipeline; 61. a third control valve; 7. and a controller.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 2, the control system of the quick-opening actuator includes a pressure air source 1, a filter assembly 2, a first control valve 41, a quick-release assembly 42 and a cylinder 3, the filter assembly 2 is an air source two-way connection or an air source three-way connection, the cylinder 3 is provided with a stroke feedback device 31, the cylinder 3 is provided with a rack bar 32, a gear 33 and a compression spring 34, the cylinder 3 is rotatably provided with the gear 33, the rack bar 32 is located in a transmission direction of a piston and is engaged with the gear 33 to form linkage, the compression spring 34 is located at an end of the rack bar 32 far away from the piston, the pressure air source 1 is connected with the filter assembly 2, a first pipeline 4 is provided between the filter assembly 2 and the cylinder 3, the first control valve 41 and the quick-release assembly 42 are sequentially arranged on the first pipeline 4 from the filter assembly 2 to the cylinder 3, the quick-release assembly 42 includes an exhaust shuttle valve 421, when the first control valve 41 is closed, the quick-release assembly 42 is in an exhaust state, when the first control valve 41 is opened, the quick-discharge assembly 42 is in a closed state.

A second pipeline 5 is further arranged between the filter assembly 2 and the cylinder 3, a second throttle valve 53 is arranged on a pipeline between the filter assembly 2 and the second control valve 51 of the second pipeline 5, the open time of the second throttle valve 53 can be adjusted, the second pipeline 5 is sequentially provided with a second control valve 51 and a one-way throttle valve 52 along the direction from the filter assembly 2 to the cylinder 3, the second control valve 51 has a first state that the pressure air source 1 is enabled to intake air to the cylinder 3 through the second pipeline 5 and a second state that the cylinder 3 is enabled to exhaust air through the second control valve 51, the one-way throttle valve 52 is normally conducted when the fluid direction is the direction from the filter assembly 2 to the cylinder 3 and is throttled and adjustable in the fluid direction from the cylinder 3 to the filter assembly 2.

The quick-opening actuator control system further comprises a controller 7, the controller 7 is connected with the first control valve 41, the second control valve 51 and the stroke feedback device 31, the controller 7 controls the first control valve 41 and the second control valve 51 to be switched on and off and receives stroke signals fed back by the stroke feedback device 31: when the controller 7 receives the quick opening instruction, the controller 7 closes the first control valve 41 and the second control valve 51, the first pipeline 4, the second pipeline 5 and the cylinder 3 where the first control valve 41 and the second control valve 51 are located are in an exhaust state, when the stroke signal fed back by the stroke feedback device 31 is 70-80 degrees, the valve opening degree is 75 degrees in the embodiment, the controller 7 opens the first pipeline 4 of the first control valve 41, the first control valve 41 and the cylinder 3 belong to an intake state, the rest of the gas medium in the cylinder 3 is exhausted through the one-way throttle valve 52 and the second control valve 51, and the valve is in a slow opening stage.

The second pipeline 5 is connected with a third pipeline 6 between the one-way throttle valve 52 and the cylinder 3, the third pipeline 6 is provided with a third control valve 61, the third control valve 61 has a closed state and an open state enabling the cylinder 3 to exhaust through the third control valve 61, and the closed state is a closed state enabling the cylinder 3 not to exhaust through the third control valve 61.

The quick-opening actuating mechanism control system further comprises a controller 7, the controller 7 is connected with the third control valve 61 and the stroke feedback device 31, and the controller 7 can control the on-off of the third control valve 61 and receive a stroke signal fed back by the stroke feedback device 31: when the controller 7 receives the quick opening signal, the controller 7 closes the third control valve 61, the third pipeline 6 where the third control valve 61 is located and the cylinder 3 are in an exhaust state, when the stroke signal fed back by the stroke feedback device 31 is 70-80 degrees of valve opening, the controller 7 opens the third control valve 61, the third control valve 61 is in an exhaust closing state, the rest of the gas medium in the cylinder 3 is exhausted through the one-way throttle valve 52 and the second control valve 51, and the valves are in a slow opening stage.

The quick exhaust assembly 42 further comprises a check valve 422 and a first throttle valve 423 which are arranged on the first pipeline 4, the check valve 422 and the first throttle valve 423 are located between the exhaust shuttle valve 421 and the cylinder 3, and the exhaust shuttle valve 421, the check valve 422 and the first throttle valve 423 are matched, so that the quick exhaust assembly is suitable for occasions with large volume of the cylinder 3, and exhaust is more stable. Meanwhile, the quick exhaust assembly 42 can also adopt a pneumatic control one-way valve so as to be suitable for occasions with small volume of the cylinder 3.

The quick-opening actuator controls the quick-opening valve of the system as described above.

The working principle is as follows: valve closing action: the circuit system is supplied with pressurized air 1, and the pressurized air passes through the filter assembly 42, preferably an air supply triplet in this embodiment 42, and enters the air inlet of the control valve two 51 through the throttle valve two 53. At the moment, the control valve III 61 is de-energized, and the channel of the control valve III 61 is cut off; the first control valve 41 is de-energized, P is communicated with A, pressure gas enters the quick exhaust assembly 42, and the quick exhaust assembly 42 cuts off an external leakage loop to keep a closed state; meanwhile, the second control valve 51 is de-energized, the P and A are communicated, pressure air enters the cylinder 3 through the one-way throttle valve 52 to push the piston to drive the rack rod 32 to move towards the valve closing direction, and the compression spring 34 compresses for energy storage and drives the gear 33 to move simultaneously, so that the valve is closed.

Opening action of the valve: the circuit system is supplied with pressurized air 1, and the pressurized air passes through the filter assembly 42, preferably an air supply triplet in this embodiment 42, and enters the air inlet of the control valve two 51 through the throttle valve two 53. At the moment, the first control valve 41 is de-energized, the P and the A are communicated, pressure gas enters the quick exhaust assembly 42, and the quick exhaust assembly 42 cuts off an external leakage loop to keep a closed state; meanwhile, the second control valve 51 is electrified, the P and the B are communicated, the pressure gas cuts off the discharge loop, the A and the T are communicated, and the gas in the cylinder 3 is exhausted through the one-way throttle valve 52 and the second control valve 51; and the third control valve 61 is electrified, the P is communicated with the A, the gas in the cylinder 3 is exhausted through the third control valve 61, the compression spring 34 is compressed and can release and push the rack rod 32 and the piston to move towards the valve opening direction, and simultaneously, the gear 33 is driven to move, so that the valve is opened slowly.

Quick opening action of the valve: the circuit system is supplied with pressurized air 1, and the pressurized air passes through the filter assembly 42, preferably an air supply triplet in this embodiment 42, and enters the air inlet of the control valve two 51 through the throttle valve two 53. At the moment, the second control valve 51 is electrified, the P and the B are communicated, the pressure gas cuts off the discharge loop, the A and the T are communicated, and the gas in the cylinder 3 is exhausted through the one-way throttle valve 52 and the second control valve 51; the third control valve 61 is electrified, the P is communicated with the A, and the gas in the cylinder 3 is exhausted through the third control valve 61; meanwhile, the first control valve 41 is electrified, the T is communicated with the A, the quick exhaust assembly 42 is quickly opened, and gas in the cylinder 3 is quickly exhausted through the quick exhaust assembly 42; the compression of the spring can release and push the rack bar 32 and the piston to move towards the valve opening direction, and simultaneously drives the gear 33 to move, so that the valve is quickly opened. When the valve is opened to 75 degrees of opening, the stroke position feedback device feeds back to the electric control system, so that the first control valve 41 is de-energized, and the quick discharge assembly 42 cuts off the leakage loop to keep a closed state; the third control valve 61 is de-energized, and the third control valve 61 channel is cut off; the rest gas medium in the cylinder 3 is exhausted through the one-way throttle valve 52 and the control valve II 51, the executing device enters a buffering action, the valve is in a slow opening stage, and the buffering closing time can be adjusted by adjusting the one-way throttle plug of the one-way throttle valve 52.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications fall within the scope of the present invention, which is defined by the appended claims and their equivalents.

Claims

1. A quick-opening actuating mechanism control system comprises a pressure air source (1), a filter assembly (2), a first control valve (41), a quick-opening assembly (42) and a cylinder (3), wherein a rack rod (32), a gear (33) and a compression spring (34) are arranged in the cylinder (3), the gear (33) is installed in the cylinder (3) in a rotating mode, the rack rod (32) is located in the transmission direction of a piston and is meshed with the gear (33) to form linkage, the compression spring (34) is located at one end, away from the piston, of the rack rod (32), the pressure air source (1) is connected with the filter assembly (2), a first pipeline (4) is arranged between the filter assembly (2) and the cylinder (3), the first control valve (41) and the quick-opening assembly (42) are sequentially arranged on the first pipeline (4) from the filter assembly (2) to the cylinder (3), the quick exhaust assembly (42) comprises an exhaust shuttle valve (421), when the first control valve (41) is closed, the quick exhaust assembly (42) is in an exhaust state, and when the first control valve (41) is opened, the quick exhaust assembly (42) is in a closed state, and the quick exhaust assembly is characterized in that: still be provided with second pipeline (5) between filter assembly (2) and cylinder (3), second pipeline (5) have set gradually control valve two (51) and one-way throttle valve (52) to cylinder (3) direction along filter assembly (2), control valve two (51) have make pressure air supply (1) through second pipeline (5) to the first state that cylinder (3) admitted air and cylinder (3) through the carminative second state of control valve two (51), one-way throttle valve (52) are normally switched on and are throttle and adjustable for the direction of cylinder (3) to filter assembly (2) return air at the fluid direction when filter assembly (2) is the direction of cylinder (3) in the fluid direction.

2. The quick-open actuator control system of claim 1, wherein: and a stroke feedback device (31) is arranged on the cylinder (3).

3. The quick-open actuator control system of claim 2, wherein: and a third pipeline (6) is connected between the one-way throttle valve (52) and the cylinder (3) of the second pipeline (5), a third control valve (61) is arranged on the third pipeline (6), and the third control valve (61) has a closing state and an opening state which enables the cylinder (3) to exhaust through the third control valve (61).

4. The quick-open actuator control system of claim 1, wherein: the quick exhaust assembly (42) further comprises a one-way valve (422) and a first throttle valve (423) which are arranged on the first pipeline (4), and the one-way valve (422) and the first throttle valve (423) are located between the exhaust shuttle valve (421) and the cylinder (3).

5. The quick-open actuator control system of claim 1, wherein: the quick-discharge assembly (42) is a pneumatic control one-way valve.

6. The quick-open actuator control system of claim 1, wherein: and a second throttle valve (53) is arranged on the pipeline of the second pipeline (5) between the filter assembly (2) and the second control valve (51).

7. The quick-open actuator control system of claim 1, wherein: the filtering component (2) is an air source two-connection component or an air source three-connection component.

8. The quick-opening actuator control system according to claim 2, further comprising a controller (7), wherein the controller (7) is connected with the first control valve (41), the second control valve (51) and the stroke feedback device (31), the controller (7) controls the first control valve (41) and the second control valve (51) to be switched on and off and receives a stroke signal fed back by the stroke feedback device (31):

when the controller (7) receives a quick opening instruction, the controller (7) closes the first control valve (41) and the second control valve (51), the first pipeline (4), the second pipeline (5) and the cylinder (3) where the first control valve (41) and the second control valve (51) are located are in an exhaust state, when the stroke signal fed back by the stroke feedback device (31) is 70-80 degrees of valve opening, the controller (7) opens the first pipeline (4) of the first control valve (41), the first control valve (41) and the cylinder (3) belong to an air inlet state, the rest of gas media in the cylinder (3) are exhausted through the one-way throttle valve (52) and the second control valve (51), and the valves are in a slow opening stage.

9. The quick-open actuator control system of claim 8, wherein: the stroke control device is characterized by further comprising a controller (7), wherein the controller (7) is connected with the third control valve (61) and the stroke feedback device (31), the controller (7) can control the on-off of the third control valve (61) and receive a stroke signal fed back by the stroke feedback device (31):

when the controller (7) receives the quick opening signal, the controller (7) closes the third control valve (61), the third pipeline (6) where the third control valve (61) is located and the cylinder (3) are in an exhaust state, when the stroke signal fed back by the stroke feedback device (31) is 70-80 degrees of valve opening, the controller (7) opens the third control valve (61), the third control valve (61) is in an exhaust closing state, the rest of gas media in the cylinder (3) are exhausted through the one-way throttle valve (52) and the second control valve (51), and the valves are in a slow opening stage.

10. Quick-opening valve provided with a quick-opening actuator control system according to any one of claims 1-9.