Explosion-proof valve achieving valve opening based on pneumatic drive and electric control drive

Abstract

The utility model discloses an explosion-proof valve capable of realizing valve opening based on pneumatic drive and electric control drive. The explosion-proof valve comprises a base, a valve, an elastic reset device and an electric control device, a vent hole is formed in the base, and the valve is movably arranged on the base to open or close the vent hole; the elastic resetting device is used for providing elastic restoring force for the valve, so that the valve is close to the vent hole, and the vent hole is in a closed state; the electric control device is used for providing pushing force for the valve so that the valve can be away from the vent hole, and then the vent hole is in an open state. According to the explosion-proof valve achieving valve opening based on pneumatic driving and electric control driving, opening of the valve is achieved in the pneumatic driving mode and the electric control driving mode, safety and stability of the whole system can be improved, and under the condition that one of the driving modes fails, the explosion-proof valve can be opened. And the other driving mode can be replaced to maintain normal work.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion -proof valve especially relates to a kind of explosion -proof valve based on gas pressure drive and electric control drive realizes the opening of valve. BACKGROUND

[0002] Traditional explosion -proof valve, either is through pure gas pressure drive (internal and external pressure difference) to realize the opening control of valve, either is through pure electric control drive (motor or cylinder etc.) to realize the opening control of valve.

[0003] How to integrate gas pressure drive and electric control drive in explosion -proof valve, realize the opening of valve by gas pressure drive and electric control drive two kinds of ways, improve the security and stability of whole system, in the case where one kind of drive mode fails, another drive mode can still be replaced to maintain normal work, it is the technical problem that needs to be solved. INVENTION CONTENTS

[0004] The utility model aims at overcoming the insufficient in prior art, provide a kind of explosion -proof valve based on gas pressure drive and electric control drive realizes the opening of valve, realize the opening of valve by gas pressure drive and electric control drive two kinds of ways, improve the security and stability of whole system, in the case where one kind of drive mode fails, another drive mode can still be replaced to maintain normal work.

[0005] The utility model aims at overcoming the insufficient in prior art, provide a kind of explosion -proof valve based on gas pressure drive and electric control drive realizes the opening of valve, realize the opening of valve by gas pressure drive and electric control drive two kinds of ways, improve the security and stability of whole system, in the case where one kind of drive mode fails, another drive mode can still be replaced to maintain normal work.

[0006] A kind of explosion -proof valve based on gas pressure drive and electric control drive realizes the opening of valve, include: pedestal, valve, elastic reset device, electric control device;

[0007] The pedestal is opened with a vent hole, the valve is movably arranged on the pedestal to realize the opening or closure of the vent hole;

[0008] The elastic reset device is used to provide elastic restoring force for the valve, so that the valve is close to the vent hole, in turn makes the vent hole be in closed state;

[0009] The electric control device is used to provide pushing force for the valve, so that the valve is away from the vent hole, in turn makes the vent hole be in open state;

[0010] The electric control device is motor drive structure, and the output end of the motor drive structure is connected with the valve by the way of abutting;Or the electric control device is cylinder drive structure, and the output end of the cylinder drive structure is connected with the valve by the way of abutting.

[0011] In one of the embodiments,

[0012] The elastic reset device comprises a guide column and a reset spring.

[0013] The base is provided with a guide hole, the guide column is movably arranged in the guide hole along the axial direction, and one end of the guide column is fixedly connected with the valve.

[0014] The reset spring is used for providing elastic restoring force for the guide column, so that the valve is close to the air hole, and the air hole is in a closed state.

[0015] In one of the embodiments,

[0016] The base is provided with a plurality of guide holes, and the guide holes are arranged in a ring array with the central axis of the base as the center.

[0017] The number of the guide columns is the same as that of the guide holes, and each guide column is correspondingly inserted into each guide hole.

[0018] Each guide column is correspondingly sleeved with a reset spring.

[0019] In one of the embodiments, one end of the guide column is screwed on the valve.

[0020] In one of the embodiments, the valve is provided with a first structure reinforcing rib, and the base is provided with a second structure reinforcing rib.

[0021] In one of the embodiments, the valve is provided with an external sealing ring.

[0022] In one of the embodiments, the base is provided with an internal sealing ring.

[0023] In one of the embodiments, the explosion-proof valve based on the air pressure driving and the electric control driving to realize the opening of the valve further comprises a sensor in electric signal connection with the electric control device.

[0024] The explosion-proof valve based on the air pressure driving and the electric control driving to realize the opening of the valve can improve the safety and stability of the whole system, and in the case that one driving mode fails, the other driving mode can still replace it to maintain normal work. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the premise of not paying creative labor.

[0026] Figure 1 Figure 1 is a structural diagram of an explosion-proof valve based on gas pressure driving and electric control driving to realize valve opening according to an embodiment of the present application;

[0027] Figure 2 Figure 2 is an exploded view of the explosion-proof valve based on gas pressure driving and electric control driving to realize valve opening according to the embodiment of the present application; Figure 1 Figure 3 is a structural diagram of the explosion-proof valve based on gas pressure driving and electric control driving to realize valve opening according to the embodiment of the present application;

[0028] Figure 3 Figure 4 is a state diagram of the explosion-proof valve based on gas pressure driving to realize valve opening according to the embodiment of the present application; Figure 1

[0029] Figure 4 Figure 5 is a state diagram of the explosion-proof valve based on electric control driving to realize valve opening according to the embodiment of the present application.

[0030] Figure 5 DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only, and are not intended to be the only embodiment.

[0033] ​​Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an", and "the" include plural references unless the context clearly dictates otherwise. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0034] As shown in Figure 1 and Figure 2 The utility model discloses an explosion -proof valve 10 based on air pressure drive and electric control drive realizes the valve opening, including: base 100, valve 200, elastic reset device 300, electric control device 400.

[0035] As shown in Figure 3 Base 100 is provided with a vent hole 110, and valve 200 is movably arranged on base 100 to realize the opening or closure of vent hole 110.

[0036] Elastic reset device 300 is used to provide elastic recovery force for valve 200, so that valve 200 is close to vent hole 110, and then vent hole 110 is in the closed state.

[0037] Electric control device 400 is used to provide a pushing force for valve 200, so that valve 200 is away from vent hole 110, and then vent hole 110 is in the open state.

[0038] Next, the working principle of the explosion -proof valve 10 based on air pressure drive and electric control drive to realize the valve opening of the above structure will be described:

[0039] The whole explosion -proof valve is installed in the vent pipe 20 (as shown in Figure 4 and Figure 5 );

[0040] As shown in Figure 1 Under normal conditions, valve 200 blocks vent hole 110 under the action of elastic reset device 300, so that vent hole 110 is in the closed state.

[0041] The opening of valve 200 can be realized by air pressure drive and electric control drive;

[0042] As shown in Figure 4 For example, when the internal pressure is greater than the external pressure, there is a pressure difference between the inside and the outside, under the action of gas pressure, valve 200 overcomes the elastic force of elastic reset device 300 and realizes natural opening (it can be understood as air pressure drive); when the internal pressure is less than or equal to the external pressure, elastic reset device 300 drives valve 200 to reset and close;

[0043] AsFigure 5 As shown, the electric control device 400 can automatically push the valve 200 to open against the elastic force of the elastic reset device 300, regardless of the changes in the internal and external pressure.

[0044] Preferably, the electric control device 400 pushes the valve 200 to open in a manner that can be achieved by installing a sensor in the entire system, which is electrically connected to the electric control device 400. When the sensor sends the relevant real-time collected data to the host board or control board through wired or wireless means, the host board or control board controls the electric control device 400 to push the valve 200 to open. The electric control device 400 retracts and no longer provides a pushing force to the valve 200, and the elastic reset device 300 is responsible for driving the valve 200 to reset. At this time, whether the valve 200 can be closed depends on the internal and external pressure difference. The above-mentioned sensor can be a pressure sensor, a temperature sensor, or a temperature sensor, which can be freely selected according to the function to be achieved.

[0045] The opening of the valve 200 can be achieved by both air pressure driving and electric control driving, which can improve the safety and stability of the entire system. In the case of failure of one driving mode, the other driving mode can still take over to maintain normal work.

[0046] As shown, Figure 3 Specifically, the elastic reset device 300 includes a guide column 310 and a reset spring 320. The base 100 is provided with a guide hole 120, the guide column 310 is movably arranged in the guide hole 120 along the axial direction, and one end of the guide column 310 is fixedly connected with the valve 200. The reset spring 320 is used to provide an elastic restoring force to the guide column 310, so that the valve 200 approaches the air hole 110, and the air hole 110 is in a closed state.

[0047] One end of the guide column 310 is fixedly connected with the valve 200, and the reset spring 320 applies an elastic restoring force to the guide column 310, thereby indirectly providing an elastic restoring force to the valve 200.

[0048] The guide column 310 is movably arranged in the guide hole 120 along the axial direction, and the guide column 310 cooperates with the guide hole 120 to realize stable extension and contraction of the guide column 310.

[0049] As shown, Figure 3As shown, in this embodiment, the base 100 is provided with a plurality of guide holes 120, which are arranged in a circular array centered on the central axis of the base 100. The number of guide posts 310 is the same as the number of guide holes 120, and each guide post 310 is inserted into each guide hole 120. A return spring 320 is correspondingly sleeved on each guide post 310. This structural arrangement can improve the stability of the valve 200 during opening or closing movements.

[0050] like Figure 3 As shown, further, one end of the guide post 310 is screwed onto the valve 200. For example, a corresponding screw hole 201 is provided on the plate surface of the valve 200, and one end of the guide post 310 is screwed into the screw hole.

[0051] In one embodiment of the present invention, the electric control device 400 is a motor drive structure, and the output end of the motor drive structure is connected to the valve 200 in a butting manner.

[0052] In another embodiment of the present invention, the electronic control device 400 is a cylinder drive structure, and the output end of the cylinder drive structure is connected to the valve 200 in a supporting manner.

[0053] like Figure 3 As shown, in the present invention, the valve 200 is provided with a first structural reinforcement rib 210. The provision of the first structural reinforcement rib 210 can improve the structural strength of the valve 200; the base 100 is provided with a second structural reinforcement rib 130. The provision of the second structural reinforcement rib 130 can improve the structural strength of the base 100.

[0054] like Figure 3 As shown, in the present invention, an external sealing ring 220 is provided on the valve 200 and an internal sealing ring 140 is provided on the base 100, thereby improving the air tightness of the product.

[0055] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An explosion-proof valve that opens based on pneumatic drive and electric control drive, characterized in that: include: Base, valve, elastic reset device, electronic control device; The base is provided with a vent hole, and the valve is movably arranged on the base to realize opening or closing of the vent hole; The elastic restoring device is used to provide an elastic restoring force for the valve, so that the valve is close to the vent hole, thereby placing the vent hole in a closed state; The electric control device is used to provide a driving force for the valve to move the valve away from the vent hole, thereby making the vent hole open; The electronic control device is a motor drive structure, and the output end of the motor drive structure is connected to the valve by abutting; or the electronic control device is a cylinder drive structure, and the output end of the cylinder drive structure is connected to the valve by abutting.

2. The explosion-proof valve for opening the valve based on air pressure drive and electric control drive according to claim 1 is characterized in that: The elastic reset device includes: a guide column and a reset spring; A guide hole is provided on the base, and the guide post is movably arranged in the guide hole along the axial direction, and one end of the guide post is fixedly connected to the valve; The return spring is used to provide an elastic restoring force for the guide column, so that the valve is close to the vent hole, thereby making the vent hole in a closed state.

3. The explosion-proof valve for opening the valve based on air pressure drive and electric control drive according to claim 2 is characterized in that: The base is provided with a plurality of guide holes, which are distributed in a circular array with the central axis of the base as the center; The number of the guide posts is the same as the number of the guide holes, and each guide post is plugged into each guide hole in a one-to-one correspondence; Each of the guide pillars is correspondingly sleeved with a return spring.

4. The explosion-proof valve for opening the valve based on air pressure drive and electric control drive according to claim 3 is characterized in that: One end of the guide column is screwed onto the valve.

5. The explosion-proof valve for opening the valve based on air pressure drive and electric control drive according to any one of claims 1 to 4, characterized in that: The valve is provided with a first structural reinforcement rib, and the base is provided with a second structural reinforcement rib.

6. The explosion-proof valve for opening the valve based on air pressure drive and electric control drive according to any one of claims 1 to 4, characterized in that: An external sealing ring is provided on the valve.

7. The explosion-proof valve for opening the valve based on air pressure drive and electric control drive according to any one of claims 1 to 4, characterized in that: A built-in sealing ring is provided on the base.

8. The explosion-proof valve for opening the valve based on air pressure drive and electric control drive according to any one of claims 1 to 4, characterized in that: The explosion-proof valve that realizes valve opening based on air pressure drive and electric control drive also includes a sensor that is electrically connected to the electric control device.

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