High-temperature cut-off valve equipment

Abstract

The utility model discloses high-temperature cut-off valve equipment which comprises a valve body, a valve element used for opening or closing the valve body is arranged in the valve body, a channel on the valve element extends outwards to form a connecting channel, a high-temperature cut-off device is arranged in the connecting channel, and the high-temperature cut-off device is used for cutting off the connecting channel when the outside temperature is high. The connecting channel is formed in the channel of the valve element and can contain the high-temperature cutter, after high temperature is generated outside the valve body and reaches a certain temperature, the alloy connecting rod is melted due to the high temperature, the spring pushes the first moving end and the second moving end to move towards the two sides of the connecting channel, the connecting channel is blocked, and the wall of the connecting channel shields the connecting opening; when the valve element is in the open state, the gas enters the connecting channel through the channel of the valve element and is communicated through the connecting port, the valve element is arranged to be detachable, the high-temperature cutter can be conveniently taken out and replaced, use convenience is improved, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and specifically to a high-temperature cut-off valve device. Background Art

[0002] At present, gas as a fuel has penetrated into thousands of households. Especially in large and medium-sized cities, pipeline gas has been installed in kitchens. Among them, the gas valve is a very important component, and the opening and closing of the gas valve are used to open or block the gas pipeline. The structure of the traditional gas valve is relatively simple and requires user operation to achieve opening and closing, and it does not have the function of automatic closing. However, it is found in daily life that when the cooking time is relatively long, users often leave the kitchen to handle other things in order to save time. If there is a fire in the room or the external environment temperature where the gas valve is located is too high at this time, the temperature of the gas valve will gradually rise. If the user cannot detect and close the gas valve in time, there will be a safety hazard such as an explosion. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a high-temperature cut-off valve device to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A high-temperature cut-off valve device, including a valve body, a valve core for opening or closing the valve body is arranged in the valve body, a connection channel extends outward from the channel of the valve core, and a high-temperature cut-off device is arranged in the connection channel to cut off the connection channel at high external temperature.

[0005] Preferably, the high-temperature cut-off device includes a first moving end and a second moving end. The first moving end and the second moving end are slidably arranged in the connection channel. An alloy connecting rod that can melt is arranged between the first moving end and the second moving end. A spring is arranged between the first moving end and the second moving end. After the alloy connecting rod melts, the first moving end and the second moving end block the connection channel under the action of the spring. Connection ports are arranged on the outer sides of the first moving end and the second moving end for gas to flow through the connection ports when the valve body is open.

[0006] Preferably, the connection between the connection channel and the channel of the valve core is an inclined surface, and the outer ends of the first moving end and the second moving end match the inclined surface. When the first moving end and the second moving end block the connection channel, the connection ports correspond to the inclined surface and are not communicated with the channel of the valve core.

[0007] Preferably, the valve core includes a first valve core and a second valve core, and the first valve core and the second valve core are screwed together for the removal of the high-temperature cut-off device.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: A high-temperature cut-off valve device, by providing a connection channel inside the channel of the valve core, enables it to accommodate a high-temperature cut-off device. When high temperature is generated outside the valve body and reaches a certain temperature, the high temperature causes the alloy connecting rod to melt, and the spring pushes the first moving end and the second moving end to move towards both sides of the connection channel, blocking the connection channel. The connection channel wall blocks the connection port, thereby cutting off the gas. When the valve core is in the open state, the gas enters the connection channel through the channel of the valve core and is connected through the connection port. By making the valve core detachable, it is convenient to take out and replace the high-temperature cut-off device, increasing the convenience of use and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a cross-sectional view of the internal structure of the valve body of the present utility model;

[0010] Figure 2 is an exploded view of the internal structure of the valve core of the present utility model;

[0011] Figure 3 is a cross-sectional view of the internal structure of the valve core of the present utility model;

[0012] Figure 4 is an exploded view of the structure of the high-temperature cut-off device of the present utility model.

[0013] In the figure: 1-valve body, 2-valve core, 21-first valve core, 22-second valve core, 3-connection channel, 4-high-temperature cut-off device, 41-first moving end, 42-second moving end, 43-alloy connecting rod, 44-spring, 45-connection port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] Please refer to Figures 1-4 , the present utility model provides a technical solution: A high-temperature cut-off valve device, including a valve body 1, a valve core 2 for opening or closing the valve body 1 is provided inside the valve body 1, a connection channel 3 extends outward from the channel on the valve core 2, and a high-temperature cut-off device 4 is provided inside the connection channel 3 for cutting off the connection channel 3 in case of external high temperature.

[0016] The valve core 2 in the valve body 1 can be detached from its interior, which is prior art and will not be elaborated here.

[0017] The high-temperature cut-off device includes a first moving end 41 and a second moving end 42. The first moving end 41 and the second moving end 42 are slidably arranged in the connecting channel 3. A fusible alloy connecting rod 43 is arranged between the first moving end 41 and the second moving end 42. A spring 44 is arranged between the first moving end 41 and the second moving end 42. After the alloy connecting rod 43 melts, the first moving end 41 and the second moving end 42 block the connecting channel 3 under the action of the spring 44. Connecting ports 45 are arranged on the outer sides of the first moving end 41 and the second moving end 42 for gas to flow through the connecting ports 45 when the valve body 1 is open.

[0018] The connection between the connecting channel 3 and the channel on the valve core 2 is an inclined surface. The outer ends of the first moving end 41 and the second moving end 42 match the inclined surface. When the first moving end 41 and the second moving end 42 block the connecting channel 3, the connecting port 45 corresponds to the inclined surface and is not communicated with the channel on the valve core 2.

[0019] The valve core 2 includes a first valve core 21 and a second valve core 22. The first valve core 21 and the second valve core 22 are screwed together for the removal of the high-temperature cut-off device 4.

[0020] Working principle: When the present utility model is in use, the channel of the valve core 2 is communicated with the pipeline connected to the valve body 1. When high temperature appears outside the valve body 1 and reaches a certain temperature, the alloy connecting rod 43 melts, and the first moving end 41 and the second moving end 42 move towards both sides in the connecting channel 3 under the pushing force of the spring 44 until the first moving end 41 and the second moving end 42 respectively fit with the two side ends of the connecting channel 3. At this time, the connecting port 45 fits with the inclined surface of the connecting channel 3 wall and blocks it. The connecting port 45 is not communicated with the channel of the valve core 2 at this time, thereby completing the cutting of the gas. When it is necessary to replace the high-temperature cut-off device 4, the valve core 2 is disassembled from the valve body 1, then the first valve core 21 and the second valve core 22 are separated to open the connecting channel 3, then the high-temperature cut-off device 4 is taken out, the unused high-temperature cut-off device 4 is placed in the connecting channel 3, then the first valve core 21 and the second valve core 22 are connected, and then the valve core 2 is installed in the valve body 1 to be used again.

[0021] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature cut-off valve device, comprising a valve body (1), wherein a valve core (2) is arranged in the valve body (1) for opening or closing the valve body (1), characterized in that: The channel on the valve core (2) extends outward to form a connecting channel (3), and a high-temperature cut-off device (4) is provided in the connecting channel (3) for cutting off the connecting channel (3) when the external temperature is high; The high temperature cut-off device comprises a first movable end (41) and a second movable end (42), the first movable end (41) and the second movable end (42) being slidably arranged in a connecting channel (3), a fusible alloy connecting rod (43) being arranged between the first movable end (41) and the second movable end (42), a spring (44) being arranged between the first movable end (41) and the second movable end (42), after the alloy connecting rod (43) is melted, the first movable end (41) and the second movable end (42) block the connecting channel (3) under the action of the spring (44), and connecting ports (45) are arranged on the outer sides of the first movable end (41) and the second movable end (42) for gas to flow through the connecting ports (45) when the valve body (1) is open.

2. The high temperature cut-off valve device according to claim 1, characterized in that: The connection portion between the connecting channel (3) and the channel on the valve core (2) is in the form of an inclined surface, and the outer ends of the first movable end (41) and the second movable end (42) match the inclined surface. When the first movable end (41) and the second movable end (42) block the connecting channel (3), the connecting port (45) corresponds to the inclined surface and is not in communication with the channel on the valve core (2).

3. The high temperature cut-off valve device according to claim 1, characterized in that: The valve core (2) comprises a first valve core (21) and a second valve core (22); the first valve core (21) and the second valve core (22) are threadedly connected and are used for removing the high-temperature cut-off device (4).

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