Gas emergency cut-off valve

Abstract

The utility model discloses a gas emergency cut-off valve which comprises a cut-off valve body, the top of the cut-off valve body is provided with an electromagnetic execution coil seat and a reset handle, and the electromagnetic execution coil seat is movably sleeved with an explosion-proof shell cover which is used for covering and protecting the electromagnetic execution coil seat and the reset handle. A protection support is assembled on the stop valve body, a positioning ring is arranged on the top of the protection support, the positioning ring is connected to the explosion-proof shell cover in a sleeving mode and used for positioning and supporting the explosion-proof shell cover, the protection support comprises vertical rods vertically assembled on the stop valve body, and the four vertical rods are distributed on the periphery of the explosion-proof shell cover. The gas emergency cut-off valve has good protection performance, and the damage degree of external force collision to the cut-off valve body can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of shut-off valve technology, specifically a gas emergency shut-off valve. Background Technology

[0002] With the acceleration of urbanization, natural gas, as a clean energy source, has been widely used in homes and industries. However, improper use of natural gas or aging equipment often harbors significant safety hazards. Gas leaks can lead to fires, explosions, and other serious accidents, severely threatening people's lives and property. Therefore, effective safety measures are needed to prevent and control gas accidents.

[0003] An emergency gas shut-off valve is a valve installed at the outlet of a gas storage tank or pipeline that can quickly shut off the gas supply in an emergency. It utilizes a solenoid valve to control the valve's closure and features a simple structure, sensitive response, and reliable operation. It can quickly cut off the gas supply upon detecting a gas leak or abnormal situation, effectively preventing the escalation of the accident. Furthermore, traditional emergency gas shut-off valves also have intelligent monitoring and alarm functions, capable of monitoring gas usage in real time. Upon detecting an abnormality, an alarm is immediately issued, and users or relevant departments are notified remotely for rapid response and handling, providing safety assurance for gas use. However, in practical applications, it has been found that commercial gas supply, especially in restaurant kitchens, gas-fired thermal energy plant workshops, and gas boiler rooms, involves frequent personnel activity. During these frequent activities, the gas shut-off valve is easily rubbed and bumped against its side, causing damage to the solenoid coil and resulting in valve malfunction, posing a significant safety hazard to gas use. Therefore, this application proposes a new emergency gas shut-off valve to address this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a gas emergency shut-off valve with good protective performance, which can effectively reduce the damage to the shut-off valve body caused by external impact.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gas emergency shut-off valve includes a shut-off valve body. The top of the shut-off valve body is equipped with an electromagnetic actuator coil seat and a reset handle. An explosion-proof housing is movably sleeved on the electromagnetic actuator coil seat to protect the electromagnetic actuator coil seat and the reset handle. A protective bracket is mounted on the shut-off valve body. The top of the protective bracket has a positioning ring, which is sleeved on the explosion-proof housing to position and support the explosion-proof housing.

[0007] Preferably, the protective bracket includes vertical rods mounted on the shut-off valve body, and there are four vertical rods distributed around the explosion-proof enclosure.

[0008] Preferably, a pair of connecting arms are radially fixed on the outer wall of the positioning ring. A movable sleeve is horizontally fixed at the end of the connecting arm away from the positioning ring. The movable sleeve is distributed perpendicular to the connecting arms. A crossbar is movably inserted inside the movable sleeve. The two ends of the crossbar pass through the end of the movable sleeve and are connected to the tops of two adjacent vertical rods.

[0009] Preferably, the pair of connecting arms are distributed along the flow direction of the shut-off valve body.

[0010] Preferably, a protective plate is connected between the two vertical bars that are perpendicular to the horizontal bar.

[0011] Preferably, the bottom ends of the two vertical rods connected to the same horizontal rod are each horizontally fixed with a support rod, and a fixed sleeve is sleeved between the two support rods. The fixed sleeve is fixedly embedded in the shut-off valve body. The fixed sleeve has sliding cavities at both ends inside. One end of the support rod that extends into the fixed sleeve is provided with a stop block that slides and engages with the sliding cavity. A spring is provided between the stop block and the inner end wall of the sliding cavity.

[0012] Preferably, a rubber ring is bonded to the inner circular surface of the positioning ring, and a rubber pad is bonded to the outer wall of the explosion-proof enclosure at a position corresponding to the positioning ring. The rubber ring and the rubber pad are interference-fitted, and a handle is provided at the top of the explosion-proof enclosure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes an explosion-proof cover fitted over the electromagnetic actuator coil seat and reset handle of the shut-off valve body to protect them from direct impact damage. A pair of fixed sleeves with support rods at both ends vertically support four vertical rods. Two horizontal rods are fixed at the top of the four vertical rods, and movable sleeves fitted onto the two horizontal rods support the positioning ring, thus limiting the position of the explosion-proof cover and preventing it from falling off. Furthermore, springs inside the fixed sleeves provide elastic support for the support rods, and a protective plate between the two vertical rods perpendicular to the horizontal rods provides elastic buffer protection on both sides of the shut-off valve body, preventing direct impact from external forces and effectively reducing the damage caused by external impacts, thereby improving the valve body's protective performance.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the structure of the shut-off valve body of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the protective bracket of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the explosion-proof enclosure of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the fixing sleeve of this utility model.

[0021] In the diagram: 1. Shut-off valve body; 2. Explosion-proof housing; 3. Protective bracket; 4. Positioning ring; 5. Protective plate; 6. Electromagnetic actuator coil seat; 7. Reset handle; 8. Fixed sleeve; 9. Support rod; 10. Vertical rod; 11. Horizontal rod; 12. Movable sleeve; 13. Rubber ring; 14. Connecting arm; 15. Rubber pad; 16. Handle; 17. Slide cavity; 18. Stop block; 19. Spring. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0023] Example

[0024] Please see Figures 1 to 4 The preferred technical solution provided by this utility model is as follows: a gas emergency shut-off valve, including a shut-off valve body 1, the top of which is equipped with an electromagnetic actuator coil seat 6 and a reset handle 7. The shut-off valve body 1 is controlled by electromagnetic control to perform the gas shut-off operation. An explosion-proof cover 2 is movably sleeved on the electromagnetic actuator coil seat 6 to protect the electromagnetic actuator coil seat 6 and the reset handle 7 and prevent them from being damaged by direct impact.

[0025] In a further embodiment, a protective bracket 3 is mounted on the shut-off valve body 1. The top of the protective bracket 3 has a positioning ring 4, which is fitted onto the explosion-proof housing 2 for positioning and support of the explosion-proof housing 2. Specifically, the protective bracket 3 includes vertical rods 10 mounted vertically on the shut-off valve body 1. There are four vertical rods 10 distributed around the explosion-proof housing 2. The four vertical rods 10 can provide protection around the explosion-proof housing 2. A pair of connecting arms 14 are radially fixed on the outer wall of the positioning ring 4. A movable sleeve 12 is horizontally fixed at the end of the connecting arm 14 away from the positioning ring 4. The movable sleeve 12 is distributed perpendicular to the connecting arm 14. A crossbar 11 is movably inserted inside the movable sleeve 12. The two ends of the crossbar 11 pass through the ends of the movable sleeve 12 and are connected to the tops of the two adjacent vertical rods 10. Using this structure, the four vertical rods 10 support the positioning ring 4.

[0026] In this embodiment, a pair of connecting arms 14 are distributed along the flow direction of the shut-off valve body 1, and a shielding plate 5 is connected between two vertical bars 10 that are perpendicular to the crossbar 11. Thus, the shielding plate 5 can be distributed on both sides of the flow direction of the shut-off valve body 1 to provide shielding protection for the shut-off valve body 1 and the electromagnetic actuator coil seat 6.

[0027] Furthermore, the bottom ends of the two vertical rods 10 connected to the same horizontal rod 11 are each horizontally fixed with a support rod 9. A fixed sleeve 8 is sleeved between the two support rods 9. The fixed sleeve 8 is fixedly embedded in the shut-off valve body 1. Sliding cavities 17 are opened at both ends inside the fixed sleeve 8. A stop block 18 is provided at one end of the support rod 9 that slides into the sliding cavity 17. A spring 19 is provided between the stop block 18 and the inner end wall of the sliding cavity 17. The elastic support of the support rod 9 by the spring 19, together with the protective plate 5 between the two vertical rods 10 in the direction perpendicular to the horizontal rod 11, can provide elastic buffer protection for both sides of the shut-off valve body 1, avoiding direct collision between external forces and the shut-off valve body 1 and the electromagnetic actuator coil seat 6, and effectively reducing the damage of external force collisions to the shut-off valve body 1 and the electromagnetic actuator coil seat 6.

[0028] In a further embodiment, a rubber ring 13 is bonded to the inner circular surface of the positioning ring 4, and a rubber pad 15 is bonded to the outer wall of the explosion-proof housing 2 at a position corresponding to the positioning ring 4. The rubber ring 13 and the rubber pad 15 are interference-fitted to allow the positioning ring 4 to be tightly fitted to the explosion-proof housing 2. A handle 16 is provided at the top of the explosion-proof housing 2 for pulling the explosion-proof housing 2 away from the positioning ring 4.

[0029] In use, the explosion-proof cover 2 fitted onto the electromagnetic actuator coil seat 6 and reset handle 7 of the shut-off valve body 1 provides protection for them, preventing direct impact damage. The four vertical rods 10 are vertically supported by support rods 9 passing through both ends of a pair of fixed sleeves 8. Two horizontal rods 11 are fixed horizontally at the top of the four vertical rods 10, and movable sleeves 12 fitted onto the two horizontal rods 11 support the positioning ring 4. This design limits the position of the explosion-proof cover 2, preventing the positioning ring 4 from falling off. Furthermore, the springs 19 inside the fixed sleeves 8 provide elastic support for the support rods 9, and the protective plate 5 between the two vertical rods 10 perpendicular to the horizontal rods 11 provides elastic buffer protection for both sides of the shut-off valve body 1. This effectively reduces damage from external impacts to the shut-off valve body 1 and improves its protective performance.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Detachable installation methods are varied, such as through plug-in and snap-fit ​​connections, or through bolt connections, etc.

[0031] The foregoing, in conjunction with the embodiments and accompanying drawings, has clearly and completely described the concept, specific structure, and technical effects of this utility model, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions.

[0032] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A gas emergency shut-off valve, comprising a shut-off valve body (1), wherein the top of the shut-off valve body (1) shall be equipped with an electromagnetic actuator coil seat (6) and a reset handle (7), characterized in that: An explosion-proof cover (2) is movably sleeved on the electromagnetic actuator coil base (6) to protect the electromagnetic actuator coil base (6) and the reset handle (7); The shut-off valve body (1) is equipped with a protective bracket (3), and the top of the protective bracket (3) has a positioning ring (4). The positioning ring (4) is fitted onto the explosion-proof enclosure (2) and is used to position and support the explosion-proof enclosure (2).

2. A gas emergency shut-off valve according to claim 1, characterized in that: The protective bracket (3) includes vertical rods (10) mounted vertically on the shut-off valve body (1), and there are four vertical rods (10) distributed around the explosion-proof enclosure (2).

3. A gas emergency shut-off valve according to claim 2, characterized in that: A pair of connecting arms (14) are radially fixed on the outer wall of the positioning ring (4). A movable sleeve (12) is horizontally fixed at one end of the connecting arm (14) away from the positioning ring (4). The movable sleeve (12) is distributed perpendicular to the connecting arm (14). A crossbar (11) is movably inserted inside the movable sleeve (12). The two ends of the crossbar (11) pass through the ends of the movable sleeve (12) and are connected to the tops of two adjacent vertical rods (10).

4. A gas emergency shut-off valve according to claim 3, characterized in that: The pair of connecting arms (14) are distributed along the flow direction of the shut-off valve body (1).

5. A gas emergency shut-off valve according to claim 4, characterized in that: A shielding plate (5) is connected between two vertical bars (10) that are perpendicular to the horizontal bar (11).

6. A gas emergency shut-off valve according to claim 3, characterized in that: The bottom ends of the two vertical rods (10) connected to the same horizontal rod (11) are each fixed with a support rod (9). A fixed sleeve (8) is sleeved between the two support rods (9). The fixed sleeve (8) is fixedly embedded in the shut-off valve body (1). The fixed sleeve (8) has sliding cavities (17) at both ends inside. A stop block (18) that slides into the sliding cavity (17) is provided at one end of the support rod (9) that extends into the fixed sleeve (8). A spring (19) is provided between the stop block (18) and the inner end wall of the sliding cavity (17).

7. A gas emergency shut-off valve according to claim 1, characterized in that: A rubber ring (13) is bonded to the inner circular surface of the positioning ring (4), and a rubber pad (15) is bonded to the outer wall of the explosion-proof cover (2) at the position corresponding to the positioning ring (4). The rubber ring (13) and the rubber pad (15) are fitted together with an interference fit. A handle (16) is provided at the top of the explosion-proof cover (2).

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