Connecting rod type mechanical electromagnetic gas emergency cut-off valve

Abstract

The utility model discloses a connecting rod type mechanical electromagnetic gas emergency cut-off valve in the technical field of gas emergency cut-off valves, which comprises a valve body of the gas emergency cut-off valve, a valve cover is mounted on one side of the valve body, a shell is mounted at one end of the valve cover, a transmission part used for driving is mounted on the inner side of the shell, a sealing part is mounted on the inner side of the valve cover, and the sealing part is mounted on the inner side of the valve cover. The transmission part is used for driving the sealing part to get close to the interior of the valve body for sealing, similarly, the transmission part can be used for driving the sealing part to be away from the inner side of the valve body for fuel gas supply flowing, the convenience and safety of the valve body for conducting emergency cut-off operation on fuel gas are improved, and the problems that the operation difficulty of opening or closing of an emergency cut-off valve is large; the emergency cut-off valve solves the problems that an existing emergency cut-off valve cannot cut off fuel gas of a fuel gas pipeline in time, the sealing effect of tight closing of the emergency cut-off valve is poor, fuel gas leaks easily in the closed state, and the sealing performance and safety of fuel gas use are affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas safety field, concretely is a connecting rod formula mechanical electromagnetic gas emergency cut -out valve. BACKGROUND

[0002] Gas pipeline is the pipeline of conveying gas, in order to prevent the accident usually need to install gas emergency cut -out valve, traditional electromagnetic type emergency cut -out valve, the magnetic force of magnet and the compression force and relaxation of spring cooperate with each other, thereby reaches the opening and closing function of this kind of product, the greater the gas pressure in gas pipeline, then the spring force that needs to be used to keep the product closed state is greater, similarly, the magnetic force that is used to keep the product opening state is greater, like this, under the condition of excessive spring force, it will be difficult to reach the opening state through manual lifting etc., therefore, the applicable working condition pipeline pressure of this kind of traditional electromagnetic type emergency cut -out valve is less than or equal to 0.2MPa,

[0003] The operation difficulty of emergency cut -out valve opening or closure is greater, can not cut off gas in time to gas pipeline, and the sealing effect of the close of emergency cut -out valve is not good, there is gas leakage under the closed state, influence the sealing property and safety of gas use, therefore need to design a connecting rod formula mechanical electromagnetic gas emergency cut -out valve to solve above problems. UTILITY MODEL CONTENTS

[0004] The utility model is provided with a connecting rod formula mechanical electromagnetic gas emergency cut -out valve to solve the problems in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a connecting rod formula mechanical electromagnetic gas emergency cut -out valve, including the valve body of gas emergency cut -out valve, the valve cover is installed on one side of the valve body, the shell is installed on one end of the valve cover, the transmission part for driving is installed on the inner side of the shell, the sealing element is installed on the inner side of the valve cover

[0006] Preferably, the transmission part includes a connector installed between the valve cover and the shell, a valve rod shaft penetrates the inner side of the connector, a first connecting rod is connected to one side of the valve rod shaft, a second connecting rod is connected to one end of the first connecting rod, a mandrel is connected to the other end of the second connecting rod, a handle rod is installed on the other end of the mandrel, the valve rod shaft is hinged to the first connecting rod, and the first connecting rod is hinged to the second connecting rod.

[0007] Preferably, the sealing element includes a valve flap block installed on one end of the valve rod shaft, a sealing gasket is installed on the other side of the valve flap block, the valve flap block and the valve rod shaft are installed through a connecting block, a spring is sleeved on the outer side of the valve rod shaft, a pad is installed on the outer side of the valve rod shaft and on one side of the valve flap block, the spring is fixedly connected to the valve cover and the pad at both ends, and the sealing gasket is embedded in the inner cavity of the valve body.

[0008] Preferably, the electromagnet is mounted on the inner side of the shell and close to one end, the valve rod shaft is provided with an adsorption disc at one end, and the shell and the electromagnet are locked and mounted by a nut.

[0009] Preferably, the valve clack block is embedded with a valve clack flat film on one side.

[0010] Preferably, the first sealing ring is embedded between the valve cover and the valve body.

[0011] Preferably, three second sealing rings are embedded between the valve cover and the shell in uniform arrangement.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The valve body is connected to the pipeline at both ends, the gas is guided through the pipeline, the sealing member is driven by the transmission member to be close to the inside of the valve body for sealing, and the sealing member is driven by the transmission member to be away from the inside of the valve body for gas supply flow, thereby improving the convenience and safety of the emergency shut-off operation of the valve body on the gas.

[0014] 2. The valve rod shaft penetrates the connector and is in sliding connection with the connector, the handle rod is hinged and rotated at one end of the first connecting rod through the second connecting rod, then the first connecting rod is hinged and rotated at one side of the valve rod shaft, so that the first connecting rod drives the valve rod shaft to slide in the connector. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the overall structure of the utility model;

[0016] Figure 2 It is a front view of the overall structure of the utility model; Figure 1

[0017] Figure 3 It is a front view of the overall structure of the utility model; Figure 2

[0018] Figure 4 It is a schematic view of the overall structure of the utility model; Figure 2

[0019] Figure 5 It is a schematic view of the overall structure of the utility model; Figure 2

[0020] Figure 6 It is a schematic view of the transmission member in the overall structure of the utility model.

[0021] ​​​​Fig. 1, valve body; 2, valve cover; 3, shell; 4, connector; 5, valve stem shaft; 6, first connecting rod; 7, second connecting rod; 8, mandrel; 9, handle rod; 10, valve block; 11, sealing washer; 12, connecting block; 13, spring; 14, pad; 15, electromagnet; 16, adsorption disc; 17, valve flap flat film; 18, first sealing ring; 19, second sealing ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Embodiment one

[0024] Please refer to Figures 1-6 The utility model provides a connecting rod type mechanical electromagnetic gas emergency cut -off valve, including the valve body 1 of gas emergency cut -off valve, the valve body 1 one side is equipped with valve cover 2, and the valve cover 2 one end is equipped with shell 3, and the inboard of shell 3 is equipped with the transmission part for driving, and the inboard of valve cover 2 is equipped with sealing element, and the valve cover 2 and shell 3 between embed three second sealing rings 19 of uniform arrangement, the inboard of shell 3 and close to one end is equipped with electromagnet 15, the valve stem shaft 5 one end is equipped with adsorption disc 16, shell 3 and electromagnet 15 are locked and are installed through nut.

[0025] Among them, electromagnet 15 includes the neodymium iron boron permanent magnet fixedly arranged in the concentric vertical center of shell 3, the concentric inner periphery of shell 3 is fixedly arranged with winding coil, the gap between shell 3, permanent magnet and winding coil is filled with epoxy resin, the enameled wire of winding coil is connected with the external cable arranged on shell 3 through shell 3 to receive electric indication signal, the both ends of valve body 1 are connected to pipeline, gas is guided through pipeline, valve body 1 and valve cover 2 are installed through multiple bolts, valve cover 2 and shell 3 are installed through multiple bolts, three second sealing rings 19 are used for multiple sealing between valve cover 2 and shell 3, transmission part is used to drive sealing element to be close to valve body 1 for sealing, and transmission part can also be used to drive sealing element to be away from the inboard of valve body 1 for gas supply flow, which improves the convenience and safety of emergency cut operation of valve body 1 on gas.

[0026] Specifically, the transmission member comprises a connector 4 installed between the valve cover 2 and the shell 3, a valve rod shaft 5 penetrating through the inside of the connector 4, a first connecting rod 6 connected to one side of the valve rod shaft 5, a second connecting rod 7 connected to one end of the first connecting rod 6, a mandrel 8 connected to the other end of the second connecting rod 7, and a handle rod 9 installed at the other end of the mandrel 8. The valve rod shaft 5 is hingedly connected to the first connecting rod 6, and the first connecting rod 6 is hingedly connected to the second connecting rod 7.

[0027] Further, the valve rod shaft 5 penetrates through the connector 4 and is slidably connected thereto. By rotating the handle rod 9 through the second connecting rod 7 at one end of the first connecting rod 6, the first connecting rod 6 is hingedly rotated at one side of the valve rod shaft 5, so that the first connecting rod 6 drives the valve rod shaft 5 to slide in the connector 4.

[0028] More specifically, the sealing member comprises a valve clack block 10 installed at one end of the valve rod shaft 5, a sealing gasket 11 installed at the other side of the valve clack block 10, a connecting block 12 installed between the valve clack block 10 and the valve rod shaft 5, a spring 13 sleeved on the outside of the valve rod shaft 5, a pad block 14 installed on the outside of the valve rod shaft 5 and at one side of the valve clack block 10, an electromagnet member 15 installed at the inside of the shell 3 and close to one end thereof, an adsorption disc 16 installed at one end of the valve rod shaft 5, a valve clack flat film 17 embedded at one side of the valve clack block 10, a first sealing ring 18 embedded between the valve cover 2 and the valve body 1, and the shell 3 and the electromagnet member 15 are tightly installed by a nut. The spring 13 is fixedly connected to the valve cover 2 and the pad block 14 at both ends thereof, and the sealing gasket 11 is embedded in the inner cavity of the valve body 1.

[0029] Among them, the first sealing ring 18 can seal between the valve cover 2 and the valve body 1, the sealing gasket 11 at one side of the valve clack block 10 driven by the valve rod shaft 5 can be closely embedded in the inside of the valve body 1, or the sealing gasket 11 at one side of the valve clack block 10 driven by the valve rod shaft 5 can be away from the inside of the valve body 1, so as to facilitate the flow of gas or emergency closure to cut off the flow of gas, the spring 13 outside the valve rod shaft 5 between the valve clack block 10 and the valve body 1 can be extruded and pushed to the valve clack block 10 through the pad block 14, the valve rod shaft 5 can drive the valve clack block 10 away from the valve body 1 while extruding the spring 13 through the pad block 14, the valve clack flat film 17 moves to the cutoff port in the valve body 1, the diastolic force of the spring 13 downwardly presses the sealing mechanism, the valve clack flat film 17 is in close contact with the cutoff port in the valve body 1, and the valve body 1 remains closed.

[0030] Working principle: through clockwise rotating handle rod 9, it drives mandrel 8 to move clockwise, through clockwise rotating mandrel 8, it drives first connecting rod 6 to rotate in the same direction, second connecting rod 7 rotates clockwise and drives first connecting rod 6 lower part to rotate in the same direction, first connecting rod 6 lower part rotates clockwise to its parallel with valve rod shaft 5, first connecting rod 6 upper part rotates and pushes valve rod shaft 5 to do vertical movement perpendicular to valve body 1, then valve rod shaft 5 drives valve flap block 10 to move, at the same time, valve rod shaft 5 lifts valve flap block 10 outside sealing washer 11 far away from valve body 1, at the same time, valve flap block 10 compresses spring 13 arranged between valve flap and valve cover 2, at the same time, adsorption disc 16 is absorbed and locked by electromagnet part 15 in shell 3, so that valve body 1 keeps in open state.

[0031] Also, after receiving electric signal, electromagnet part 15 magnetic field is neutralized, adsorption disc 16 is separated from electromagnet part 15, valve flap block 10 at one end of valve rod shaft 5 is driven by spring 13 relaxation force to move downward, then valve flap diaphragm 17 moves to the cut-off port in valve body 1, at the same time, under the relaxation force of spring 13, it is pressed tightly, at the same time, sealing washer 11 outside valve flap block 10 is tightly attached to the inside of valve body 1.

[0032] The contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A linkage type mechanical electromagnetic gas emergency shut-off valve comprising a valve body (1) of a gas emergency shut-off valve, characterized in that: The valve body (1) is provided with a valve cover (2) on one side, the valve cover (2) is provided with a shell (3) on one end, the shell (3) is provided with a transmission member for driving on the inner side, the valve cover (2) is provided with a sealing member on the inner side.

2. A linkage type mechanical electromagnetic gas emergency shut-off valve according to claim 1, characterized in that: The transmission member comprises a connector (4) installed between the valve cover (2) and the shell (3), the connector (4) is provided with a valve rod shaft (5) penetrating through the inner side, the valve rod shaft (5) is connected with a first connecting rod (6) on one side, the first connecting rod (6) is connected with a second connecting rod (7) on one end, the second connecting rod (7) is connected with a mandrel (8) on the other end, the mandrel (8) is provided with a handle rod (9) on the other end, the valve rod shaft (5) is hinged with the first connecting rod (6), and the first connecting rod (6) is hinged with the second connecting rod (7).

3. A linkage type mechanical electromagnetic gas emergency shut-off valve according to claim 2, characterized in that: The sealing member comprises a valve clack block (10) installed on one end of the valve rod shaft (5), the valve clack block (10) is provided with a sealing gasket (11) on the other side, the valve clack block (10) and the valve rod shaft (5) are installed through a connecting block (12), the valve rod shaft (5) is provided with a spring (13) on the outer side, the valve rod shaft (5) is provided with a pad block (14) on the outer side and on one side of the valve clack block (10), the spring (13) is fixedly connected with the valve cover (2) and the pad block (14) on both ends, and the sealing gasket (11) is embedded in the inner cavity of the valve body (1).

4. A linkage type mechanical electromagnetic gas emergency shut-off valve according to claim 3, characterized in that: The shell (3) is provided with an electromagnet member (15) on the inner side and close to one end, the valve rod shaft (5) is provided with an adsorption disc (16) on one end, and the shell (3) and the electromagnet member (15) are tightly installed through a nut.

5. A linkage type mechanical electromagnetic gas emergency shut-off valve according to claim 3, characterized in that: The valve clack block (10) is embedded with a valve clack flat film (17) on one side.

6. A linkage type mechanical electromagnetic gas emergency shut-off valve according to claim 1, characterized in that: The valve cover (2) and the valve body (1) are embedded with a first sealing ring (18).

7. A linkage type mechanical electromagnetic gas emergency shut-off valve according to claim 2, characterized in that: The valve cover (2) and the shell (3) are embedded with three second sealing rings (19) arranged uniformly.

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