Gas emergency cut-off valve

Abstract

The utility model relates to the technical field of valves, and discloses a gas emergency cut-off valve which comprises a main valve body, a vertical pipe fixedly communicated with the main valve body, a sealing cover installed on the top of the vertical pipe and gas pipelines arranged on the two sides of the main valve body, and fixing assemblies used for fixing the pipelines are arranged on the two sides of the main valve body. The fixing assembly comprises fixing plates A fixedly connected to the two sides of the main valve body and clamping blocks arranged in the fixing plates A. A fixing plate B is fixedly connected to one side of the gas pipeline, the sealing cover and the vertical pipe are in threaded connection through bolts, a sleeve is fixedly connected to the top of the sealing cover, and a handle is fixedly connected to the top of the sleeve. According to the pipeline fixing device, the fixing assembly is arranged, the pipeline is aligned to the valve, the pull rod is loosened to clamp the pipeline, meanwhile, the insertion rod on the valve is inserted into the insertion hole in the pipeline, the pipeline and the valve are fixed, and therefore the effects that installation and maintenance are not convenient, and the pipeline can be fixed are achieved, and the stability of the pipeline is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a gas emergency cut-off valve. Background Art

[0002] A gas emergency shut-off valve is used to cut off the upstream source of hazardous materials in the event of equipment failure, corrosion damage, sealing failure, leakage, or emergency, to prevent the scope of the accident from expanding, control the impact of the accident, and reduce accident losses. When using gas, a gas valve is generally required to turn the gas on and off. Existing gas valves are generally manually controlled and can be manually operated when needed to be opened or closed.

[0003] The Chinese patent with the publication number CN213808887U discloses a main valve body, a vertical pipe is vertically connected to the middle top of the main valve body, a sealing cover is installed on the top of the vertical pipe, a sleeve is vertically installed in the middle of the top of the sealing cover, a valve stem is inserted into the sleeve, the bottom end of the valve stem extends into the interior of the vertical pipe, a main valve disc is arranged inside the valve body, an auxiliary valve disc is installed on the upper part of the main valve disc, a sealing ring is installed at the bottom of the main valve disc and the auxiliary valve disc, and a first spring is installed between the top of the auxiliary valve disc and the bottom of the sealing cover. In the gas emergency shut-off valve, when a fault occurs, the moving iron core can overcome the spring force through electromagnetic force to pull the moving iron core out of the valve stem lock groove, and the valve disc closes quickly by its own weight to cut off the gas, thereby protecting the pipeline and gas safety. When the fault is eliminated, the valve can be manually opened to restore normal gas use. It is easy to operate and convenient to use.

[0004] However, there are some shortcomings. The existing method requires aligning the valve with the flange on the pipeline, then aligning the bolts with the threaded holes on the flange, tightening the bolts, and fixing the gas emergency shut-off valve on the gas pipeline. When replacing, it is very troublesome to remove multiple bolts one by one, which wastes a lot of time, and the pipeline cannot be fixed. Therefore, a gas emergency shut-off valve that is easy to install and maintain and can fix the pipeline is needed. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a gas emergency shut-off valve, comprising a main valve body, a vertical pipe fixedly connected to the main valve body, a sealing cover installed on the top of the vertical pipe, and gas pipelines arranged on both sides of the main valve body. Both sides of the main valve body are provided with fixing components for fixing the pipelines. The fixing components include a fixing plate A fixedly connected to both sides of the main valve body and a clamping block arranged inside the fixing plate A. One side of the gas pipeline is fixedly connected with a fixing plate B.

[0007] Furthermore, the sealing cover and the vertical pipe are threadedly connected by bolts, a sleeve is fixedly connected to the top of the sealing cover, a handle is fixedly connected to the top of the sleeve, and an electromagnetic actuator is installed on one side of the sleeve.

[0008] The fixing assembly also includes a pull rod fixedly connected to one side of the clamping block. A compression spring is sleeved on the outside of the pull rod. The compression spring is located between the clamping block and the fixing plate A.

[0009] The fixing assembly also includes sockets B evenly arranged on the fixing plate B, and sockets A are arranged on both sides of the sockets B.

[0010] The fixing assembly also includes an insertion rod evenly fixedly connected to the fixing plate A, and blocks are slidably connected to both sides of the insertion rod. A spring is provided on one side of the block, and the spring is located inside the insertion rod.

[0011] The inserting rod and the inserting hole B are used in cooperation with each other, and the inserting hole A and the card block are used in cooperation with each other.

[0012] The utility model has the following beneficial effects:

[0013] (1) The utility model: by setting a fixing component, aligning the pipeline with the valve, loosening the pull rod to clamp the pipeline, and inserting the plug rod on the valve into the plug hole on the pipeline, the pipeline and the valve are fixed, thereby achieving the effect of inconvenient installation and maintenance and the pipeline can be fixed, thereby improving the stability of the pipeline;

[0014] (2) The utility model provides a handle and an electromagnetic actuator. When a fault occurs, the electromagnetic actuator can automatically close the valve. When it is necessary to open the gas emergency shut-off valve, the handle can be manually pressed to open the gas emergency shut-off valve, thereby avoiding the expansion of the scope of the accident.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the first overall structure of the utility model;

[0018] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0019] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 4 This is a schematic diagram of the main valve structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the gas pipeline structure of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. main valve body; 2. sealing cover; 3. sleeve; 4. handle; 5. vertical pipe; 6. electromagnetic actuator; 7. fixing assembly; 701. fixing plate A; 702. gas pipeline; 703. fixing plate B; 704. plug rod; 705. block; 706. pull rod; 707. compression spring; 708. clamp block; 709. socket A; 710. socket B; 8. bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 As shown, the utility model is a gas emergency shut-off valve, comprising a main valve body 1, a vertical pipe 5 fixedly connected to the main valve body 1, a sealing cover 2 installed on the top of the vertical pipe 5, and a gas pipeline 702 arranged on both sides of the main valve body 1, and fixing components 7 for fixing the pipeline are arranged on both sides of the main valve body 1. The fixing component 7 includes a fixing plate A701 fixedly connected to both sides of the main valve body 1 and a clamping block 708 arranged inside the fixing plate A701, one side of the gas pipeline 702 is fixedly connected with a fixing plate B703, the sealing cover 2 and the vertical pipe 5 are threadedly connected by bolts 8, the top of the sealing cover 2 is fixedly connected with a sleeve 3, the top of the sleeve 3 is fixedly connected with a handle 4, and one side of the sleeve 3 is installed with an electromagnetic actuator 6.

[0026] The fixing component 7 also includes a pull rod 706 fixedly connected to one side of the clamping block 708, and a compression spring 707 is sleeved on the outside of the pull rod 706, and the compression spring 707 is located between the clamping block 708 and the fixing plate A701. The fixing component 7 also includes a socket B710 evenly opened on the fixing plate B703, and sockets A709 are opened on both sides of the socket B710. The fixing component 7 also includes an insertion rod 704 evenly fixedly connected to the fixing plate A701, and blocks 705 are slidably connected on both sides of the insertion rod 704. A spring is provided on one side of the block 705, and the spring is located inside the insertion rod 704. The insertion rod 704 and the socket B710 are used in conjunction with each other, and the socket A709 and the block 705 are used in conjunction with each other, so as to achieve the effect of inconvenient installation and maintenance and the pipeline can be fixed, thereby improving the stability of the pipeline.

[0027] When in use, the staff aligns the pipeline with the gas emergency shut-off valve and pulls the pull rod 706. The compression spring 707 contracts under the action of pressure, and the clamp 708 moves outward to clamp the pipeline. At the same time, the fixing plate B703 and the fixing plate A701 are brought close, the socket B710 is inserted into 704, and the plug rod 704 is inserted into the socket A709 to fix the fixing plate B703 and the fixing plate A701, and at the same time, the gas pipeline 702 and the main valve body 1 are fixed.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gas emergency shut-off valve, comprising a main valve body (1), a vertical pipe (5) fixedly connected to the main valve body (1), a sealing cover (2) installed on the top of the vertical pipe (5), and gas pipelines (702) arranged on both sides of the main valve body (1), characterized in that: A fixing assembly (7) for fixing a pipeline is arranged on both sides of the main valve body (1), the fixing assembly (7) comprising a fixing plate A (701) fixedly connected to both sides of the main valve body (1) and a clamping block (708) arranged inside the fixing plate A (701), and a fixing plate B (703) is fixedly connected to one side of the gas pipeline (702); The fixing assembly (7) further comprises a pull rod (706) fixedly connected to one side of the clamping block (708), the outer sleeve of the pull rod (706) being provided with a compression spring (707), and the compression spring (707) being located between the clamping block (708) and the fixing plate A (701); The fixing assembly (7) further comprises sockets B (710) uniformly arranged on the fixing plate B (703), and sockets A (709) are arranged on both sides of the sockets B (710); The fixing assembly (7) further comprises an insertion rod (704) evenly fixedly connected to the fixing plate A (701), and blocks (705) are slidably connected to both sides of the insertion rod (704), and a spring is provided on one side of the block (705), and the spring is located inside the insertion rod (704).

2. A gas emergency shut-off valve according to claim 1, characterized in that: The sealing cover (2) and the vertical pipe (5) are threadedly connected via bolts (8); a sleeve (3) is fixedly connected to the top of the sealing cover (2); a handle (4) is fixedly connected to the top of the sleeve (3); and an electromagnetic actuator (6) is installed on one side of the sleeve (3).

3. A gas emergency shut-off valve according to claim 1, characterized in that: The insertion rod (704) and the insertion hole B (710) are used in cooperation with each other, and the insertion hole A (709) and the clamping block (705) are used in cooperation with each other.

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