A downhole gas detection and linked ventilation device

Abstract

The utility model relates to gas detection technical field, concretely relates to a downhole gas detection and linkage ventilation device to solve the problem that fixed detection equipment is inconvenient to remove, and the coverage is limited, signal transmission and ventilation regulation delay, and the gas concentration whether exceeds the standard usually needs manual judgment, and manually adjusts the problem of ventilator. The utility model discloses that the multi -gas detector body sends the graded control signal to electric push rod after detecting that the harmful gas concentration exceeds the standard, and electric push rod pushes lever one side, and the other side of lever is far from the push plate, makes the sliding of the toothed plate cooperation spring, and the toothed plate drives the rotation of the gear ring, and makes the knob rotation to the multi -gas detector body signal transmission, and spreads the electric signal to the wireless receiver of ventilator side portion through wireless transmitter, and makes electric air door different angle open and close, thereby speeds up the air circulation, dilutes the harmful gas, effectively solves the problem that traditional monitoring and ventilation control are disjointed, and improves the downhole operation safety and intelligent level.

Description

Technical Field

[0001] This utility model relates to the field of multi-gas detector technology, specifically to a downhole gas detection and linkage ventilation device. Background Technology

[0002] In underground working environments such as coal mines and tunnels, gas safety monitoring is a crucial aspect of ensuring the safety of workers. Traditional gas detection equipment is typically installed in a fixed location and relies on wired transmission to send detection data to a control center, where ventilators are then adjusted manually or by automated systems.

[0003] Existing gas detection equipment has shortcomings in use. Fixed detection equipment has limited coverage and cannot monitor changes in gas concentration in the area where workers are located in real time. When hazardous gases (such as CO or CH4) exceed the standard, delays in signal transmission and ventilation adjustment may lead to safety hazards. Furthermore, fixed equipment cannot move with workers and is difficult to adapt to complex underground environments. Especially in temporary work areas or ventilation dead zones, traditional equipment is ineffective. In addition, existing technologies usually require manual judgment of whether gas concentration exceeds the standard and manual adjustment of ventilators. This method is not only inefficient but also prone to accidents due to human negligence. Utility Model Content

[0004] This invention provides a downhole gas detection and linkage ventilation device to solve the problems of time-consuming, labor-intensive, and ineffective fixed detection equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A downhole gas detection and linkage ventilation device includes a multi-gas detector body and a ventilator. One side of the ventilator is equipped with an electric damper, and the other side with a fan. The device is characterized in that: a box is fixedly mounted on the side of the multi-gas detector body; a knob is rotatably mounted inside the box; a toothed plate is horizontally engaged at the bottom of the knob; a lever is movably mounted on one side of the toothed plate; an electric push rod is mounted at the bottom of the lever; and a wireless transmitter is mounted on the side wall of the multi-gas detector body, and the wireless transmitter is electrically connected to the ventilator.

[0007] Furthermore, a toothed ring is fixed to the outer edge of the knob, and the toothed ring and the toothed plate are engaged in a connection.

[0008] Furthermore, a spring is provided at the bottom of the toothed plate, and a push plate is provided on one side of the spring, and the push plate is abutting against the lever.

[0009] Furthermore, a positioning hole is provided on one side of the toothed plate, and the positioning rod and the toothed plate are slidably connected through the positioning hole.

[0010] Furthermore, the ventilator is equipped with a wireless receiver, and the wireless transmitter is electrically connected to the wireless receiver.

[0011] This invention utilizes a handheld multi-gas detector to monitor the concentration of harmful gases in underground mines. When the concentration exceeds the limit, the detector sends a tiered control signal to an electric actuator. The actuator's extension end adjusts its travel distance proportionally to the gas concentration, pushing one side of the lever while the other side moves away from the push plate. This causes the toothed plate to slide with the spring, rotating the toothed ring and thus the knob. Turning the knob transmits an electrical signal via a wireless transmitter to a wireless receiver on the side of the ventilator, opening and closing the electric damper at different angles. This accelerates airflow and dilutes harmful gases, achieving automatic damper adjustment when gas concentrations exceed limits. The invention offers significant advantages such as efficient emergency response, compact and flexible deployment, high reliability through direct mechanical connection, multi-scenario compatibility and low cost, optimized human-machine collaboration, and extended equipment lifespan. It effectively solves the problem of disconnect between traditional monitoring and ventilation control, improving the safety and intelligence of underground operations. Attached Figure Description

[0012] Figure 1 This is a front view structural diagram of the multi-gas detector body in this utility model.

[0013] Figure 2 This is a rear view structural diagram of the multi-gas detector body in this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the box in this utility model.

[0015] Figure 4 This is a front view structural diagram of the ventilator in this utility model.

[0016] Figure 5 This is a rear view structural diagram of the ventilator in this utility model.

[0017] The meanings of the reference numerals in the attached figures are as follows:

[0018] 1. Multi-gas detector body; 11. Wireless transmitter; 2. Ventilator; 21. Fan; 22. Electric damper; 23. Wireless receiver; 3. Box; 4. Knob; 5. Gear ring; 6. Gear plate; 61. Push plate; 62. Spring; 7. Lever; 8. Electric push rod; 9. Positioning rod; 10. Positioning hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-5As shown, a downhole gas detection and linkage ventilation device includes a multi-gas detector body 1 and a ventilator 2. One side of the ventilator 2 is provided with an electric damper 22, and the other side of the ventilator 2 is provided with a fan 21. The device is characterized in that: a box 3 is fixedly provided on the side of the multi-gas detector body 1, a knob 4 is rotatably provided inside the box 3, a toothed plate 6 is horizontally engaged at the bottom of the knob 4, a lever 7 is movably abutted on one side of the toothed plate 6, an electric push rod 8 is provided at the bottom of the lever 7, and a wireless transmitter 11 is provided on the side wall of the multi-gas detector body 1, and the wireless transmitter 11 is electrically connected to the ventilator 2.

[0021] A toothed ring 5 is fixedly provided on the outer edge of the knob 4, and the toothed ring 5 is engaged with the toothed plate 6.

[0022] A spring 62 is provided at the bottom of the toothed plate 6, and a push plate 61 is provided on one side of the spring 62, and the push plate 61 is abutting against the lever 7.

[0023] A positioning hole 10 is provided on one side of the toothed plate 6, and the positioning rod 9 and the toothed plate 6 are slidably connected through the positioning hole 10.

[0024] The ventilator 2 is equipped with a wireless receiver 23, and the wireless transmitter 11 is electrically connected to the wireless receiver 23.

[0025] In practical use, the multi-gas detector body 1 can control multiple ventilators 2, and the multi-gas detector body 1 can be carried down into the well, making it convenient for operators to carry and detect the concentration of gases (such as CO and CH4) down into the well.

[0026] Under normal conditions, the toothed plate 6 is in its initial position, the knob 4 is in the zero position, the spring 62 is in a compressed state, and the electric damper 22 has an opening angle of 30°. When the multi-gas detector body 1 detects excessive gas, it sends a graded control signal to the electric push rod 8. The extension end of the electric push rod 8 adjusts its movement distance proportionally according to the specific value of the gas concentration, pushing one side of the lever 7 and moving the other side of the lever 7 away from the push plate 61. The spring begins to extend, causing the toothed plate 6 to slide in conjunction with the spring 62. The toothed plate 6 drives the toothed ring 5 to rotate, causing the knob 4 to rotate. After the knob 4 is turned, the multi-gas detector body 1 transmits an electrical signal to the wireless receiver 23 on the side of the ventilator 2 through the wireless transmitter 11. The movement distance of the extension end of the electric push rod 8 is linearly proportional to the concentration of harmful gas detected by the multi-gas detector body 1, so that the opening angle of the electric damper is 30°-90°.

[0027] At this time, spring 62 extends slightly, and toothed plate 6 slides a short distance tangentially along toothed ring 5, causing knob 4 to rotate 15°-30°, gradually increasing the opening angle of electric damper 22 from the normal 30° to 40°-50°. This gradual adjustment can dilute low-concentration harmful gases by moderately increasing ventilation volume, while avoiding a sudden increase in energy consumption or turbulent airflow in the mine due to excessive damper opening.

[0028] Under normal conditions, the electric damper 22 has a small opening angle to meet basic ventilation needs while also considering energy consumption. However, when gas levels are excessive, the opening angle of the electric damper 22 increases significantly to quickly dilute harmful gases and ensure underground safety. This dynamic adjustment mechanism effectively improves the safety of underground operations and emergency response efficiency. The electric damper 22 can adjust its opening angle to regulate airflow, dynamically adjusting the ventilation volume according to the gas concentration. This not only meets energy-saving requirements under normal conditions but also allows for rapid response in emergency situations, in conjunction with the multi-gas detector 1, thus enhancing underground safety.

Claims

1. A downhole gas detection and linkage ventilation device, comprising a multi-gas detector body (1) and a ventilator (2), wherein an electric damper (22) is provided on one side of the ventilator (2) and a fan (21) is provided on the other side of the ventilator (2), characterized in that: The multi-gas detector body (1) has a box (3) fixedly installed on its side. A knob (4) is rotatably installed inside the box (3). A toothed plate (6) is horizontally engaged at the bottom of the knob (4). A lever (7) is movably abutted on one side of the toothed plate (6). An electric push rod (8) is installed at the bottom of the lever (7). A wireless transmitter (11) is installed on the side wall of the multi-gas detector body (1). The wireless transmitter (11) is electrically connected to the ventilator (2).

2. The downhole gas detection and linkage ventilation device according to claim 1, characterized in that: A toothed ring (5) is fixedly provided on the outer edge of the knob (4), and the toothed ring (5) and the toothed plate (6) are meshed together.

3. The downhole gas detection and linkage ventilation device according to claim 2, characterized in that: A spring (62) is fixedly connected to the bottom of the toothed plate (6) and the box (3). A push plate (61) is provided at the bottom of the toothed plate (6), and one end of the spring (62) is fixedly connected to the push plate (61) and the box (3). The push plate (61) is connected to the other end of the spring (62), and the push plate (61) is abutted against the lever (7).

4. The downhole gas detection and linkage ventilation device according to claim 3, characterized in that: A positioning hole (10) is provided on one side of the toothed plate (6), and a positioning rod (9) is fixedly provided on the inner side of the box body (3), and the positioning rod (9) and the toothed plate (6) are slidably connected through the positioning hole (10).

5. The downhole gas detection and linkage ventilation device according to claim 1, characterized in that: The ventilator (2) is equipped with a wireless receiver (23), and the wireless transmitter (11) is electrically connected to the wireless receiver (23).

Images