Linkage control device applied to automatic fire extinguishing equipment

By designing an automatic linkage control device, the safety risks of fires in the gas-start engines of mining transport vehicles were resolved, and automatic gas shut-off and fire extinguishing were achieved, improving fire extinguishing efficiency and safety.

CN224056546UActive Publication Date: 2026-03-31李震
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

When used underground in mining transport vehicles, existing fire extinguishing devices require manual intervention to extinguish the fire in the event of a fire in the gas-starting engine, which increases the safety risk to operators and affects the fire extinguishing effect.

Method used

Design a linkage control device to automatically control the gas cut-off and shutdown of a gas-starting engine through a control component, including a fire extinguisher bottle, a control component, and a fire extinguishing nozzle, and use the pressure difference to push the valve core to achieve automatic engine shutdown.

Benefits of technology

It enables automatic engine shutdown in the event of an engine fire, avoiding the safety risks associated with manual operation and improving fire extinguishing efficiency and effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of fire extinguishing equipment, and particularly relates to a linkage control device applied to automatic fire extinguishing equipment, which comprises a fire extinguisher bottle, a control component and a fire extinguishing nozzle, a bottle valve body is arranged at the top of the fire extinguisher bottle, a medicament release end is arranged on one side of the bottle valve body, and the medicament release end is connected with the fire extinguishing nozzle through a conveying pipeline. An agent release bypass end is arranged on one side of the agent release end, the agent release bypass end is connected with a control assembly through a connecting pipeline, the control assembly is installed on an air supply pipeline of the air starting engine, and on-off control over the air supply pipeline is achieved. When the engine is on fire, automatic linkage can be achieved while fire extinguishing equipment is started, and the engine is controlled to stop. And the engine flameout is controlled automatically instead of manually, so that the risk that an operator is injured is avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of fire extinguishing equipment technology, specifically a linkage control device applied to automatic fire extinguishing equipment. Background Technology

[0002] Mining transport vehicles used in mines must comply with relevant national safety standards and regulations. This is especially true for vehicles used underground, whose engines generally have two starting methods: electric start and pneumatic start. Pneumatic start engines are more reliable, easier to maintain, and more adaptable than electric start engines.

[0003] In practical applications, if a fire occurs in an air-start engine, while the fire extinguishing device automatically activates, personnel must manually operate the engine shutdown device on-site to ensure optimal fire suppression and minimize property damage. This operation not only significantly increases the safety risks for the operator, but also, if the reaction time is insufficient or too long, it can affect the fire suppression effect and lead to unpredictable consequences. Utility Model Content

[0004] The purpose of this utility model is to provide a linkage control device for automatic fire extinguishing equipment, which can automatically link with the fire extinguishing equipment and control the engine to shut down when the engine catches fire.

[0005] To address the aforementioned technical problems, this utility model provides a linkage control device for automatic fire extinguishing equipment, used to control the gas cut-off and flameout of a gas-starting engine. The device includes a fire extinguisher bottle, a control component, and a fire extinguishing nozzle. The top of the fire extinguisher bottle is equipped with a valve body, and one side of the valve body is provided with a chemical release end. The chemical release end is connected to the fire extinguishing nozzle via a delivery pipeline. One side of the chemical release end is provided with a chemical release bypass end, which is connected to the control component via a connecting pipeline. The control component is installed in the gas supply pipeline of the gas-starting engine to achieve on / off control of the gas supply pipeline.

[0006] Preferably, the control component includes a control valve body, the left end of which is provided with a connecting pipe mounting hole for installing a connecting pipe, the right end of which is provided with a cavity, the cavity being connected to the connecting pipe mounting hole through a round hole, a valve core being placed inside the cavity, a mounting base being fixed to the right end face of the control valve body, the mounting base being provided with a reset button facing the valve core, the top of the control valve body being provided with a gas output mounting hole communicating with the cavity, and the bottom of the control valve body being provided with a gas input mounting hole communicating with the cavity.

[0007] Preferably, the reset button includes a push rod, one end of which passes through the mounting base and extends into the cavity, facing the valve core, and the other end of the push rod is provided with a button cap. The push rod is fitted with a spring, which abuts against the button cap and the mounting base.

[0008] Preferably, the bottom side of the control valve body is provided with an exhaust port that communicates with the cavity, and the exhaust port is equipped with a silencer plug.

[0009] Preferably, the outer peripheral surface of the valve core is provided with multiple stops that adapt to the inner contour of the cavity.

[0010] Preferably, the gas output mounting hole, the connecting pipe mounting hole, and the gas input mounting hole are all equipped with quick connectors.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are:

[0012] When an engine catches fire, the engine is automatically shut down via a control system while the fire extinguishing equipment is activated. This automatic shutdown replaces manual control, thus avoiding the risk of injury to the operator. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the control components installation.

[0016] Figure 3 This is a cross-sectional view of the control valve in the venting state;

[0017] Figure 4 This is a cross-sectional view of the control valve in the gas cut-off state.

[0018] Explanation of reference numerals in the attached drawings: 1. Fire extinguisher bottle; 2. Bottle valve body; 201. Agent release end; 202. Agent release bypass end; 3. Connecting pipeline; 301. Quick connector; 4. Control component; 401. Control valve body; 4011. Gas output mounting hole; 4012. Connecting pipeline mounting hole; 4013. Round hole; 4014. Gas input mounting hole; 4015. Exhaust port; 4016. Cavity; 4017. Valve core; 4018. Stop block; 402. Mounting base; 5. Gas input end; 6. Gas output end; 7. Reset button; 701. Push rod; 703. Spring; 704. Button cap; 8. Silencing plug. Detailed Implementation

[0019] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. Those skilled in the art will recognize that this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it.

[0020] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figures 1 to 4 As shown, this utility model provides a linkage control device for automatic fire extinguishing equipment, used to automatically control the gas cut-off and flameout of a gas-starting engine. It includes a fire extinguisher bottle 1, a control component 4, and a fire extinguishing nozzle. The fire extinguishing nozzle is installed at the location of the gas-starting engine so that it can promptly extinguish flames in and around the gas-starting engine in the event of a fire.

[0022] The fire extinguisher cylinder 1 has a cylinder valve body 2 on its top, and a chemical release end 201 on one side of the cylinder valve body 2. The chemical release end 201 is connected to the fire extinguishing nozzle through a delivery pipeline, and a chemical release bypass end 202 is provided on one side of the chemical release end 201. The chemical release bypass end 202 is connected to the control component 4 through a connecting pipeline 3. The control component 4 is installed in the air supply pipeline of the air-start engine to realize the on / off control of the air supply pipeline.

[0023] The control assembly 4 includes a control valve body 401, with a cavity 4016 at its right end. A connecting pipe mounting hole 4012 is provided at the left end of the control valve body 401, with a circular hole 4013 connecting to the cavity 4016. An exhaust port 4015, connecting to the cavity 4016, is provided on one side of the bottom of the control valve body 401, and a silencer plug 8 is installed in the exhaust port 4015. A gas output mounting hole 4011, connecting to the cavity 4016, is provided at the top of the control valve body 401, and a gas input mounting hole 4014, also connecting to the cavity 4016, is provided at the bottom of the control valve body 401. Quick connectors 301 are installed in the gas output mounting hole 4011, the connecting pipe mounting hole 4012, and the gas input mounting hole 4014, with one end of the connecting pipe 3 connected to the quick connector 301 in the connecting pipe mounting hole 4012.

[0024] The air supply line of the air-start engine is disconnected in the middle, with the two ends being the gas inlet 5 and the gas outlet 6, respectively. The gas outlet 6 is connected to the quick connector 301 of the gas outlet mounting hole 4011, and the gas inlet 5 is connected to the quick connector 301 of the gas inlet mounting hole 4014.

[0025] A valve core 4017 is placed inside the cavity 4016, and multiple stops 4018 adapted to the inner contour of the cavity 4016 are provided on the outer peripheral surface of the valve core 4017. A mounting base 402 is fixed to the right end face of the control valve body 401, and a reset button 7 facing the valve core 4017 is installed on the mounting base 402.

[0026] The reset button 7 includes a push rod 701. One end of the push rod 701 passes through the mounting base 402 and extends into the cavity 4016, facing the valve core 4017. The other end of the push rod 701 is provided with a button cap 704. A spring 703 is sleeved on the push rod 701, and the spring 703 abuts against the button cap 704 and the mounting base 402.

[0027] When the air-start engine catches fire, it is detected by the detector attached to the fire extinguishing nozzle. The cylinder valve 2 opens, releasing the agent inside. One stream of agent is delivered to the fire extinguishing nozzle via the delivery pipeline for fire suppression. The other stream is released from the agent release bypass end 202 and enters the control valve body 401 via the connecting pipeline 3. Due to the pressure difference, the valve core 4017 moves within the cavity 4016 (under normal conditions, the gas inlet end 5 and the gas outlet end 6 are connected, ensuring the normal operation of the air-start engine). When the valve core 4017 moves from one end to the other, the gas is blocked by the stop block 4018, stopping the engine from running. Once the fire source is controlled, the reset button 7 returns the valve core 4017 to its original position, allowing the engine to start normally again later.

[0028] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A linkage control device for use in an automatic fire extinguishing system for controlling the interruption of gas to a gas powered engine for extinguishing the engine, characterised in that: The application relates to a fire extinguishing device, which comprises a fire extinguisher bottle (1), a control assembly (4) and a fire extinguishing nozzle, the top of the fire extinguisher bottle (1) is provided with a bottle valve body (2), one side of the bottle valve body (2) is provided with a medicament releasing end (201), the medicament releasing end (201) is connected with the fire extinguishing nozzle through a conveying pipeline, one side of the medicament releasing end (201) is provided with a medicament releasing bypass end (202), the medicament releasing bypass end (202) is connected with the control assembly (4) through a connecting pipeline (3), and the control assembly (4) is installed on a gas supply pipeline of a gas starting engine to realize on-off control of the gas supply pipeline.

2. The linkage control device for automatic fire extinguishing equipment according to claim 1, characterized in that: The control assembly (4) comprises a control valve body (401), the left end of the control valve body (401) is provided with a connecting pipeline mounting hole (4012) for mounting the connecting pipeline (3), the right end of the control valve body (401) is provided with a cavity (4016), the cavity (4016) is communicated with the connecting pipeline mounting hole (4012) through a round hole (4013), a valve core (4017) is arranged in the cavity (4016), the right end face of the control valve body (401) is fixedly provided with a mounting seat (402), the mounting seat (402) is mounted with a reset button (7) which is opposite to the valve core (4017), the top of the control valve body (401) is provided with a gas output mounting hole (4011) which is communicated with the cavity (4016), and the bottom of the control valve body (401) is provided with a gas input mounting hole (4014) which is communicated with the cavity (4016).

3. The linkage control device for automatic fire extinguishing equipment according to claim 2, characterized in that: The reset button (7) comprises a push rod (701), one end of the push rod (701) penetrates through the mounting seat (402) and extends into the cavity (4016) and is opposite to the valve core (4017), the other end of the push rod (701) is provided with a button cap (704), the push rod (701) is sleeved with a spring (703), and the spring (703) abuts between the button cap (704) and the mounting seat (402).

4. The linkage control device for automatic fire extinguishing equipment according to claim 3, characterized in that: The bottom of the control valve body (401) is provided with an exhaust hole (4015) which is communicated with the cavity (4016) and is mounted with a soundproof plug (8).

5. The linkage control device for automatic fire extinguishing equipment according to claim 2, characterized in that: The outer circumferential surface of the valve core (4017) is provided with a plurality of stop blocks (4018) which are matched with the inner contour of the cavity (4016).

6. The interlock control device for automatic fire extinguishing equipment according to claim 2, wherein: The gas output mounting hole (4011), the connecting pipeline mounting hole (4012) and the gas input mounting hole (4014) are all mounted with quick couplings (301).