Electromagnetic type gas emergency cut-off valve

Abstract

The utility model relates to an electromagnetic type gas emergency cut-off valve, and belongs to the technical field of cut-off valves. The valve cover is detachably connected to the valve body; and the executing mechanism is detachably connected to the valve cover. Due to the fact that the upper diaphragm is replaced by the valve cover, and the executing mechanism is detachably connected with the valve cover, the valve cover is still installed on the valve body after the executing mechanism is detached, and therefore the situation that the valve body leaks air is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cut-off valves, in particular to an electromagnetic gas emergency cut-off valve. BACKGROUND

[0002] In the related art, a patent with the publication number CN221075254U and the publication date of June 4, 2024 discloses an electromagnetic gas emergency cut-off valve with state detection, which comprises a valve body, an upper shell arranged on the valve body, and a dustproof cap arranged on the top of the upper shell. An air passage sealing opening is formed in the valve body. An electromagnetic coil and an iron core are arranged in the upper shell. The upper end of the iron core is connected with a reset pull rod. The top of the reset pull rod is provided with an open valve handle which extends into the dustproof cap. The top of the open valve handle is provided with a trigger device. The dustproof cap is provided with an induction device which is inductively matched with the trigger device. The induction device is connected with a signal output module. The signal output module is connected with a combustible gas alarm control system. The lower end of the iron core is connected with a diaphragm pull rod. The diaphragm pull rod is provided with a diaphragm support and an upper diaphragm for sealing the upper shell. A spring for resetting the diaphragm support upward is arranged between the upper diaphragm and the diaphragm support. The diaphragm support is provided with a lower diaphragm for covering the air passage sealing opening.

[0003] For the above-mentioned related technology, the inventors have found that since the upper diaphragm is fixed on the valve body by the pressure of the upper shell, when the upper shell needs to be replaced or disassembled due to failure, the connection between the upper diaphragm and the valve body will be unstable after disassembling the upper shell, that is, the upper diaphragm and the upper shell need to be disassembled together, thereby causing the valve body to leak. CONTENT OF THE UTILITY MODEL

[0004] In order to avoid the valve body from leaking after the upper shell (the actuator in the application) is disassembled, the application provides an electromagnetic gas emergency cut-off valve, which adopts the following technical solution:

[0005] An electromagnetic gas emergency cut-off valve comprises:

[0006] a valve body;

[0007] a valve cover which is detachably connected to the valve body;

[0008] an actuator which is detachably connected to the valve cover.

[0009] By adopting the above technical solution, since the valve cover replaces the upper diaphragm, and the actuator is detachably connected to the valve cover, after disassembling the actuator, the valve cover is still installed on the valve body, thereby avoiding the valve body from leaking.

[0010] Optionally, the gas emergency cut-off valve further comprises:

[0011] Support ring block, fixedly connected to the valve body;

[0012] Connecting ears, respectively fixedly connected to the support ring block and the two ends of the valve cover diameter;

[0013] Connecting bolts, threaded with the support ring block and the valve cover corresponding to the connecting ears.

[0014] By adopting the above technical scheme, after the connecting ears on the support ring block and the valve cover correspond, the connection of the support ring block and the valve cover can be realized through the connecting bolts, so as to facilitate the installation and disassembly of the valve cover and the valve body.

[0015] Optionally, the gas emergency shut-off valve further comprises:

[0016] Stable ring block, coaxially fixedly connected to the valve cover, coaxially arranged with the support ring block, and capable of being arranged in the valve body and abutting against the inner wall of the valve body.

[0017] By adopting the above technical scheme, the valve cover can be positioned and stabilized, and the safety of the valve cover and the valve body is facilitated.

[0018] Optionally, the gas emergency shut-off valve further comprises:

[0019] Sealing ring, the diameter of the stable ring block is smaller than the diameter of the support ring block, the inner wall of the support ring block and the outer wall of the valve body form an annular sealing groove, the sealing ring is arranged in the sealing groove, and the sealing ring can abut against the outer wall of the stable ring block.

[0020] By adopting the above technical scheme, the sealing property between the valve cover and the valve body is enhanced, and the gas leakage of the valve body is further avoided.

[0021] Optionally, the gas emergency shut-off valve further comprises:

[0022] Mounting ring block, coaxially fixedly connected to the valve cover; the actuator is provided with a mounting ring groove, the mounting ring block can be inserted into the mounting ring groove, and the actuator can abut against the end face of the valve cover.

[0023] Mounting bolts, threaded with the mounting ring block and the actuator.

[0024] By adopting the above technical scheme, after the actuator abuts against the valve cover, the mounting ring block is arranged in the actuator, the connection of the actuator and the mounting ring block is realized through the mounting bolts, so that the actuator is mounted on the valve cover.

[0025] Optionally, the gas emergency shut-off valve further comprises:

[0026] Positioning blocks are fixedly connected to the valve cover in a circumferential interval; the actuating mechanism is provided with positioning grooves in a circumferential interval, and the positioning blocks can be clamped in the positioning grooves.

[0027] By using the above technical scheme, the positioning and stability of the actuating mechanism are facilitated.

[0028] Optionally, the gas emergency cut-off valve further comprises:

[0029] Sealing ring blocks, at least two, are fixedly connected to the mounting ring blocks coaxially in an interval; the actuating mechanism is provided with sealing ring grooves in a number same as that of the sealing ring blocks, and the sealing ring blocks can be embedded in the sealing ring grooves.

[0030] By using the above technical scheme, the stability of the actuating mechanism is further improved, and the sealing performance of the actuating mechanism and the valve cover is improved.

[0031] In summary, the present application has at least the following beneficial effects:

[0032] 1. The valve cover is arranged, and the valve cover, the valve body and the actuating mechanism are arranged to be detachably connected, so that the valve cover replaces the upper diaphragm, and after the actuating mechanism is detached, the valve cover is still mounted on the valve body, thereby avoiding the gas leakage of the valve body.

[0033] 2. The sealing ring is arranged to enhance the sealing performance between the valve cover and the valve body, and further avoid the gas leakage of the valve body.

[0034] 3. The positioning block is arranged to facilitate the positioning and stability of the actuating mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a schematic diagram of the overall structure of the present application;

[0036] Figure 2 is an exploded view of the valve cover and the valve body;

[0037] Figure 3 is a schematic diagram of the structure of the valve cover;

[0038] Figure 4 is an exploded view of the actuating mechanism and the valve cover.

[0039] BRIEF DESCRIPTION OF DRAWINGS: 100, valve body; 110, support ring block; 120, sealing groove; 121, sealing ring; 200, valve cover; 210, connecting lug; 220, stabilizing ring block; 230, mounting ring block; 231, mounting block; 240, mounting bolt; 250, positioning block; 260, sealing ring block; 270, connecting bolt; 300, actuating mechanism; 310, sealing ring groove; 320, positioning groove; 330, mounting ring groove; 331, mounting groove. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the following will combine the drawings in the utility model embodiments to clearly and completely describe the technical scheme in the utility model embodiments. Figure 1 - the drawings Figure 4 It is obvious that the described embodiments are 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 the ordinary skilled in the art without creative labor fall within the scope of the utility model protection.

[0041] The utility model embodiment discloses an electromagnetic type gas emergency cut-off valve. Figure 1 The electromagnetic type gas emergency cut-off valve can include a valve body 100, a valve cover 200 and an actuator 300. Since only the external structure of the cut-off valve is optimized, and the internal structure is not involved, the normal work and working principle of the cut-off valve will not be affected. The utility model only describes the connection relationship among the valve body 100, the valve cover 200 and the actuator 300; the valve cover 200 is detachably connected to the valve body 100, and the actuator 300 is detachably connected to the valve cover 200.

[0042] Referring to Figure 2 and Figure 3 , in order to realize the detachable connection of the valve cover 200 and the valve body 100, connecting ears 210 are integrally formed at both ends of the diameter of the valve cover 200; a support ring block 110 is integrally formed on the valve body 100, and connecting ears 210 are also integrally formed at both ends of the diameter of the support ring block 110. After the connecting ears 210 of the valve body 100 and the valve cover 200 correspond, the connection of the corresponding two connecting ears 210 is realized through connecting bolts 270, so as to realize the detachable connection of the valve body 100 and the valve cover 200. The diameter of the support ring block 110 can be the same as the diameter of the valve cover 200.

[0043] A stable ring block 220 is integrally formed coaxially at one end of the valve cover 200, the stable ring block 220 is arranged coaxially with the support ring block 110, and can be arranged through the valve body 100 and abut against the inner wall of the valve body 100.

[0044] Further, the diameter of the stable ring block 220 is smaller than the diameter of the support ring block 110, an annular sealing groove 120 is formed between the inner wall of the support ring block 110 and the outer wall of the valve body 100, a sealing ring 121 is arranged in the sealing groove 120, the sealing ring 121 abuts against the outer wall of the stable ring block 220, and the sealing ring 121 is an O-shaped ring, so as to enhance the sealing property between the valve body 100 and the valve cover 200.

[0045] Referring to Figure 3 and Figure 4In order to realize detachable connection of the actuator 300 and the valve cover 200, the mounting ring block 230 is coaxially integrally formed on the valve cover 200, the mounting ring block 230 is integrally formed with the mounting blocks 231 at two ends in diameter, the actuator 300 is provided with the mounting ring groove 330 and the mounting groove 331, the mounting groove 331 is communicated with the mounting ring groove 330, the mounting ring block 230 is inserted into the mounting ring groove 330, the mounting blocks 231 are inserted into the mounting groove 331, and the end surfaces of the actuator 300 and the valve cover 200 abut. The mounting blocks 231 are connected with the actuator 300 through the mounting bolts 240. The mounting bolts 240 and the connecting bolts 270 can be internal hexagonal bolts.

[0046] Further, the positioning blocks 250 are fixedly connected in the circumferential direction of the valve cover 200, the positioning blocks 250 can be uniformly distributed, and four positioning blocks 250 are uniformly arranged in the application. Four positioning grooves 320 are uniformly arranged in the circumferential direction of the actuator 300, and the positioning blocks 250 are clamped in the positioning grooves 320.

[0047] In addition, at least two sealing ring blocks 260 are coaxially fixedly connected on the mounting ring block 230, two sealing ring blocks 260 can be arranged, and the two sealing ring blocks 260 are arranged at intervals. Two sealing ring grooves 310 are arranged on the actuator 300, and the sealing ring blocks 260 are embedded in the corresponding sealing ring grooves 310.

[0048] The implementation principle of the embodiment is as follows:

[0049] After the actuator 300 fails, the mounting bolts 240 can be unscrewed to realize separation of the actuator 300 and the valve cover 200, at this time, the valve cover 200 is still sealingly connected with the valve body 100, so that air leakage of the valve body 100 is avoided.

[0050] The above are preferred embodiments of the application, and do not limit the protection scope of the application in sequence, any feature disclosed in the specification (including the abstract and the drawings) can be replaced by other equivalent or similar features or substituted features with similar purposes, unless specifically described. That is, each feature is only an example of a series of equivalent or similar features, unless specifically described.

Claims

1. An electromagnetic gas emergency shut-off valve, characterized in that: include: Valve body (100); a valve cover (200) detachably connected to the valve body (100); an actuator (300) detachably connected to the valve cover (200); A supporting ring block (110) is fixedly connected to the valve body (100); Connecting ears (210) are fixedly connected to the supporting ring block (110) and the two ends of the diameter of the valve cover (200); A connecting bolt (270) is threadedly connected to the supporting ring block (110) and the corresponding connecting ear (210) on the valve cover (200); A stabilizing ring block (220) is coaxially fixedly connected to the valve cover (200), is coaxially arranged with the supporting ring block (110), and can be passed through the valve body (100) and abut against the inner wall of the valve body (100); The sealing ring (121) has a diameter that is smaller than the diameter of the supporting ring block (110), and the inner wall of the supporting ring block (110) and the outer wall of the valve body (100) form an annular sealing groove (120). The sealing ring (121) is placed in the sealing groove (120), and the sealing ring (121) can abut against the outer wall of the stabilizing ring block (220).

2. The electromagnetic gas emergency shut-off valve according to claim 1, characterized in that: The gas emergency shut-off valve also includes: The mounting ring block (230) is coaxially fixedly connected to the valve cover (200); the actuator (300) is provided with a mounting ring groove (330), the mounting ring block (230) can be inserted into the mounting ring groove (330), and the actuator (300) can abut against the end surface of the valve cover (200); The mounting bolt (240) is threadedly connected to the mounting ring block (230) and the actuator (300).

3. The electromagnetic gas emergency shut-off valve according to claim 1, characterized in that: The gas emergency shut-off valve also includes: The positioning blocks (250) are fixedly connected to the valve cover (200) at intervals along the circumference of the valve cover (200); the actuator (300) is provided with positioning grooves (320) at intervals along the circumference, and the positioning blocks (250) can be snapped into the positioning grooves (320).

4. The electromagnetic gas emergency shut-off valve according to claim 2, characterized in that: The gas emergency shut-off valve also includes: There are at least two sealing ring blocks (260), which are coaxially spaced and fixedly connected to the mounting ring block (230); the actuator (300) is provided with the same number of sealing ring grooves (310) as the sealing ring blocks (260), and the sealing ring blocks (260) can be embedded in the sealing ring grooves (310).

Images