Gas alarm linkage electromagnetic stop valve

Abstract

The utility model discloses a gas alarm linkage electromagnetic cut-off valve, which belongs to the technical field of electromagnetic cut-off valves and comprises a valve body, a gas inlet pipe is arranged at one end of the valve body, a filter component is arranged in the middle of the gas inlet pipe, a gas outlet pipe is arranged at the other end of the valve body, and a component convenient to disassemble and assemble is arranged above the valve body. According to the electromagnetic cut-off valve, the filtering assembly is arranged, gas entering the electromagnetic cut-off valve can be conveniently filtered, impurities are prevented from entering the electromagnetic cut-off valve, use of the electromagnetic cut-off valve is not affected, when the structure is used, a filtering net can be rapidly disassembled and assembled, and the electromagnetic cut-off valve is convenient to use. The valve cover can be rapidly opened and closed through the arrangement of the assembly convenient to disassemble and assemble, internal parts can be overhauled and maintained, and the valve cover can be rapidly opened and closed through the structure.

Description

Technical Field

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

[0002] At present, gas shut-off valves are widely used in the safety protection of flammable and explosive medium pipelines in cities or factories, aerospace, shipbuilding heavy industry, petrochemical industry, power equipment, industrial furnaces, boilers, gas pipelines, gas treatment plants, gas filling stations, gas leak alarm systems, safety protection systems, fire alarm systems. When potential accidents are found, they can be quickly cut off to prevent serious accidents from happening.

[0003] Chinese patent application No. 201721045852.8 discloses a gas emergency shut-off solenoid valve, including a valve body, a valve cover and a power supply cable, characterized in that: a matching support sleeve is threadedly connected to the top of the valve cover, and a matching protective cover is also threadedly connected to the top of the support sleeve, and an armature is slidably matched with the support sleeve and the center hole of the valve cover, and a permanent magnet and a coil are wrapped around the armature, and the permanent magnet is located at the lower part of the coil, and the permanent magnet and the coil are both located in the support sleeve. The design is reasonable and can be perfectly remotely operated. Under normal circumstances, the valve body is in a normally open state, and the hydraulic device presses against the horizontal part of the L-shaped support rod to lift the armature, and then to a certain position, the permanent magnet sucks the armature and fixes it, and the hydraulic rod is retracted. When an emergency occurs, the coil is energized, the permanent magnet takes effect, and the armature is no longer sucked in. Accompanied by the force of the compression spring and gravity, the valve body is quickly closed.

[0004] The above-mentioned patent has the following problems: 1. It is inconvenient to filter the gas entering the solenoid valve during use. The entry of impurities may cause the internal part of the solenoid valve to become stuck, thus affecting its use; 2. When in use, the valve cover is fixed by bolts, and the valve cover cannot be quickly disassembled and installed for internal inspection and maintenance. Utility Model Content

[0005] To solve the problems raised in the above background technology, the utility model provides a gas alarm linkage electromagnetic shut-off valve, which is convenient for filtering the gas entering the electromagnetic shut-off valve to prevent impurities from entering, can quickly open and close the valve cover, and perform internal inspection and maintenance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas alarm-linked electromagnetic shut-off valve, comprising a valve body, an air inlet pipe is arranged at one end of the valve body, a filter assembly is arranged in the middle of the air inlet pipe, an air outlet pipe is arranged at the other end of the valve body, a convenient disassembly and assembly assembly is arranged above the valve body, a valve cover is arranged above the convenient disassembly and assembly assembly, and a control assembly is arranged above the valve cover.

[0007] Preferably, the filter assembly includes a filter seat, a positioning seat, a filter screen, a sealing cover and a handle, wherein the filter seat is arranged in the middle of the air inlet pipe, a positioning seat is arranged inside the filter seat, a filter screen is arranged above the positioning seat, a sealing cover is abutted above the filter screen, and a handle is arranged at one end of the sealing cover.

[0008] Preferably, a fixing seat is provided on one side of the sealing cover, a fixing rod is provided inside the fixing seat, a fixing slide block is provided below the fixing rod, and a fixing spring is provided on one side of the fixing slide block.

[0009] Preferably, a fixing hole matching the fixing rod is opened on one side of the sealing cover, and one end of the fixing slide block is slidably connected to a stabilizing slide bar.

[0010] Preferably, the convenient disassembly and assembly component includes a clamping seat, a clamping block, a pull rod, a clamping slide and a clamping spring, wherein the clamping seat is arranged above the valve body, a pull rod is arranged inside the clamping seat, a clamping block is arranged at one end of the pull rod, a clamping slide is arranged below the pull rod, and a clamping spring is arranged on one side of the clamping slide.

[0011] Preferably, a guide sliding opening is provided at one end of the clamping block, and a sealing gasket is provided under the valve cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a filter assembly to facilitate filtering of the gas entering the electromagnetic shut-off valve, thereby preventing impurities from entering and affecting the use of the electromagnetic shut-off valve. When the structure is in use, the filter screen can be quickly disassembled and assembled, thereby cleaning or replacing the filter screen.

[0014] 2. The utility model is capable of quickly opening and closing the valve cover and inspecting and maintaining the internal components by arranging a convenient disassembly and assembly component. The structure can quickly open and close the valve cover. When opening, the valve cover can be removed by directly pulling the pull rod. When closing, the valve cover is placed in the clamping seat, and then can be directly clamped and fixed under the action of the guide slide. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the structure of the utility model cut from the front view;

[0017] Figure 3 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the enlarged position A in the filter assembly of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the convenient disassembly and assembly components of the utility model.

[0020] In the figure: 1. valve body; 2. air inlet pipe; 3. filter assembly; 31. filter seat; 32. positioning seat; 33. filter screen; 34. sealing cover; 35. handle; 341. fixing seat; 342. fixing rod; 343. fixing slide block; 344. fixing spring; 4. air outlet pipe; 5. convenient disassembly and assembly assembly; 51. clamping seat; 52. clamping block; 53. pull rod; 54. clamping slide block; 55. clamping spring; 6. valve cover; 7. control assembly. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1

[0023] See also Figure 1-5 The utility model provides the following technical solutions: a gas alarm linkage electromagnetic shut-off valve, comprising a valve body 1, an air inlet pipe 2 is arranged at one end of the valve body 1, a filter assembly 3 is arranged in the middle of the air inlet pipe 2, an air outlet pipe 4 is arranged at the other end of the valve body 1, a convenient disassembly assembly 5 is arranged above the valve body 1, a valve cover 6 is arranged above the convenient disassembly assembly 5, and a control assembly 7 is arranged above the valve cover 6.

[0024] Specifically, the filter assembly 3 includes a filter seat 31, a positioning seat 32, a filter screen 33, a sealing cover 34 and a handle 35, wherein the filter seat 31 is arranged in the middle of the intake pipe 2, the positioning seat 32 is arranged inside the filter seat 31, the filter screen 33 is arranged above the positioning seat 32, the sealing cover 34 is abutted above the filter screen 33, and a handle 35 is arranged at one end of the sealing cover 34.

[0025] By adopting the above technical solution, the gas enters the filter seat 31 and passes through the filter net 33 to prevent impurities from entering. When the device is in use, it is easy to filter the gas entering the electromagnetic shut-off valve to prevent impurities from entering and affecting the use of the electromagnetic shut-off valve, thereby improving the practicality of use.

[0026] Specifically, a fixing seat 341 is disposed on one side of the sealing cover 34 , a fixing rod 342 is disposed inside the fixing seat 341 , a fixing slider 343 is disposed below the fixing rod 342 , and a fixing spring 344 is disposed on one side of the fixing slider 343 .

[0027] By adopting the above technical solution, when the filter 33 needs to be cleaned or replaced, the fixing rod 342 is pulled, and the fixing rod 342 drives the fixing slider 343 to move and compress the fixing spring 344, so that the fixing rod 342 is disengaged from the fixing hole, and then the sealing cover 34 can be removed, thereby taking out the filter 33 for cleaning or replacement.

[0028] Specifically, a fixing hole matching the fixing rod 342 is opened on one side of the sealing cover 34 , and one end of the fixing slide block 343 is slidably connected to a stabilizing slide block.

[0029] By adopting the above technical solution, the fixing hole facilitates the insertion of the fixing rod 342 to fix the sealing cover 34, and the stabilizing slide bar facilitates the stable sliding of the fixing slide block 343.

[0030] When the present embodiment is in use, gas enters the filter seat 31 and passes through the filter screen 33 to prevent impurities from entering. When the filter screen 33 needs to be cleaned or replaced, the fixing rod 342 is pulled, and the fixing rod 342 drives the fixing slider 343 to move and compress the fixing spring 344, so that the fixing rod 342 is disengaged from the fixing hole. Then the sealing cover 34 can be removed, thereby taking out the filter screen 33 for cleaning or replacement. When the device is in use, it is convenient to filter the gas entering the electromagnetic shut-off valve to prevent impurities from entering and affecting the use of the electromagnetic shut-off valve, thereby improving the practicality of use.

[0031] Example 2

[0032] The present embodiment is different from the embodiment 1 in that: specifically, the convenient disassembly and assembly component 5 includes a clamping seat 51, a clamping block 52, a pull rod 53, a clamping slider 54 and a clamping spring 55, wherein the clamping seat 51 is arranged above the valve body 1, a pull rod 53 is arranged inside the clamping seat 51, a clamping block 52 is arranged at one end of the pull rod 53, a clamping slider 54 is arranged below the pull rod 53, and a clamping spring 55 is arranged on one side of the clamping slider 54.

[0033] By adopting the above technical solution, the pull rod 53 is pulled, and the pull rod 53 drives the clamping slider 54 to move and compress the clamping spring 55 until the clamping block 52 is disengaged from the clamping hole. Then the valve cover 6 can be removed to inspect and maintain the device. When the device is in use, the valve cover 6 can be quickly opened and closed, and the internal components can be inspected and maintained, which improves the convenience of use.

[0034] Specifically, a guide sliding opening is provided at one end of the clamping block 52 , and a sealing gasket is provided below the valve cover 6 .

[0035] By adopting the above technical solution, the guide slide is convenient for the valve cover 6 to abut against the clamping block 52 when it is installed, and can drive the clamping block 52 to move to one side, so that the sealing gasket can seal between the valve cover 6 and the device.

[0036] When this embodiment is in use: pull the pull rod 53, the pull rod 53 drives the clamping slider 54 to move and compress the clamping spring 55 until the clamping block 52 is disengaged from the clamping hole, and then the valve cover 6 can be removed to inspect and maintain the device, so that when the device is in use, the valve cover 6 can be quickly opened and closed, and the internal components can be inspected and maintained, which improves the convenience of use.

[0037] The structure and use principle of the valve body 1 and the control component 7 in the utility model have been disclosed in a gas emergency shut-off solenoid valve disclosed in Chinese patent application No. 201721045852.8. Its working principle is that the hydraulic rod of the hydraulic device operated by the controller directly presses against the horizontal part of the L-shaped support rod to lift the armature, and the compression spring is also compressed at this time. Then, when it reaches a certain position, the permanent magnet sucks the armature and fixes it, and the valve body 1 is in a normally open state. Then the hydraulic rod is recovered. When an emergency occurs, the coil is energized, the permanent magnet takes effect, and the armature is no longer sucked in. With the action force of the compression spring and its own gravity, the valve body 1 falls down quickly and closes. When everything is processed, the hydraulic device can be remotely and directly operated by the controller to lift the armature again, so that the valve body 1 is opened. The entire process can be fully remotely operated.

[0038] Working principle and use process of the utility model: When the utility model is in use, the gas is filtered through the filter assembly 3 to prevent impurities from entering. When the valve cover 6 needs to be opened for internal inspection and maintenance, the valve cover 6 can be quickly opened and closed through the convenient disassembly assembly 5. When an emergency occurs, the coil is energized, the permanent magnet takes effect, and the armature is no longer sucked in. Accompanied by the force of the compression spring and its own gravity, the valve body 1 falls down and closes quickly. When the filter assembly 3 is in use, the gas enters the filter seat 31 and passes through the filter screen 33 to prevent impurities from entering. When the filter screen 33 needs to be cleaned or replaced, the fixing rod 342 is pulled, and the fixing rod 342 drives the fixed slider 343 to move and compress the fixed spring Spring 344 makes the fixing rod 342 disengage from the fixing hole, and then the sealing cover 34 can be removed, so that the filter screen 33 can be taken out for cleaning or replacement, so that when the device is in use, it is convenient to filter the gas entering the electromagnetic shut-off valve to prevent impurities from entering and affecting the use of the electromagnetic shut-off valve, thereby improving the practicality of use, and conveniently disassembling and assembling the component 5, pulling the pull rod 53, the pull rod 53 drives the clamping slider 54 to move and compress the clamping spring 55, until the clamping block 52 disengages from the clamping hole, and then the valve cover 6 can be removed, so as to inspect and maintain the device, so that when the device is in use, the valve cover 6 can be quickly opened and closed, and the internal components can be inspected and maintained, thereby improving the convenience of use.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas alarm linkage electromagnetic shut-off valve, comprising a valve body, characterized in that: An air inlet pipe is arranged at one end of the valve body, a filter assembly is arranged in the middle of the air inlet pipe, an air outlet pipe is arranged at the other end of the valve body, a convenient disassembly assembly assembly is arranged above the valve body, a valve cover is arranged above the convenient disassembly assembly assembly, and a control assembly is arranged above the valve cover; The filter assembly comprises a filter seat, a positioning seat, a filter screen, a sealing cover and a handle, wherein the filter seat is arranged in the middle of the air inlet pipe, a positioning seat is arranged inside the filter seat, a filter screen is arranged above the positioning seat, a sealing cover is abutted above the filter screen, and a handle is arranged at one end of the sealing cover; The convenient disassembly and assembly component includes a clamping seat, a clamping block, a pull rod, a clamping slide and a clamping spring, wherein the clamping seat is arranged above the valve body, a pull rod is arranged inside the clamping seat, a clamping block is arranged at one end of the pull rod, a clamping slide is arranged below the pull rod, and a clamping spring is arranged on one side of the clamping slide.

2. A gas alarm linkage electromagnetic shut-off valve according to claim 1, characterized in that: A fixing seat is arranged on one side of the sealing cover, a fixing rod is arranged inside the fixing seat, a fixing slide block is arranged below the fixing rod, and a fixing spring is arranged on one side of the fixing slide block.

3. A gas alarm linkage electromagnetic shut-off valve according to claim 2, characterized in that: A fixing hole matching the fixing rod is provided on one side of the sealing cover, and one end of the fixing slide block is slidably connected with the stabilizing slide bar.

4. A gas alarm linkage electromagnetic shut-off valve according to claim 1, characterized in that: A guide sliding opening is provided at one end of the clamping block, and a sealing gasket is arranged under the valve cover.

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