Mine double-car operation elevator shaft structure
By installing safety passages and ventilation systems in the elevator shafts, the problem of the lack of pedestrian access in mine elevator shafts has been solved, enabling safe worker transfers, improving production efficiency, and enhancing mine safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
The existing double-car elevator shafts in mines lack pedestrian access, which affects production efficiency and poses safety hazards when the elevators malfunction.
Safety passages are set up in the elevator shaft structure, including the first passage, the second passage, the third passage and the fourth passage. Each passage is equipped with a ladder, a ventilation system and a safety monitoring unit. The ventilation system exhausts harmful gases through ventilation pipes and ventilation fans, and fireproof isolation curtains isolate the gases to ensure the safety of workers' escape routes.
In the event of elevator malfunction or mine accident, it provides safe evacuation routes for workers, reduces safety risks, improves production efficiency, and ensures worker safety and ventilation.
Smart Images
Figure CN224076872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator shaft structure technology, and in particular to a shaft structure for a mine double-car elevator. Background Technology
[0002] An elevator shaft, serving as the passageway for elevator operation, is a vertical architectural structure. Its primary function is to provide the space for the elevator car and related equipment, such as guide rails, counterweights, and buffers, ensuring the safe and stable operation of the elevator. In mining environments, elevator shafts are crucial transportation channels connecting different mining depths to the surface, bearing the heavy responsibility of transporting personnel and materials.
[0003] Currently, most existing double-car elevator shafts use the following technologies to achieve their effect;
[0004] Intelligent control: Advanced algorithms are used to collect and analyze elevator call signals, and various factors are comprehensively considered to calculate the operating costs of each car, select the optimal responding car, and improve dispatching efficiency;
[0005] Sensor monitoring: Sensors are installed in the hoistway and car to monitor the car's position and speed in real time. When the distance between them is too small, the operating speed and direction are adjusted in time to ensure a safe distance.
[0006] Independent traction and counterweight: Each car has an independent traction system and counterweight, which provides power and balances the weight of the car, reducing energy consumption and ensuring smooth operation.
[0007] Special suspension: The upper car is connected to the top of the car with steel cables, while the lower car is routed around the sides and bottom of the hoistway with pulleys to avoid interference.
[0008] Lighting and ventilation: The car lighting meets the intensity standards and has emergency lighting; the ventilation system changes air at least 6 times per hour to ensure air quality and is dustproof, moisture-proof and low-noise.
[0009] Currently, existing double-car elevator shafts have been found to have at least the following technical problems in actual use;
[0010] Most existing elevator shafts only have passageways for elevator operation, but no pedestrian passageways. In mines, space is very limited, and it is costly to build a pedestrian passageway next to the elevator shaft. Therefore, the lack of pedestrian passageways in existing elevator shafts means that when the elevator is damaged, workers cannot move up and down, which will delay construction, affect production efficiency, and also pose certain safety problems, potentially causing workers to be trapped underground. Utility Model Content
[0011] To address the shortcomings of existing technologies, this utility model provides a shaft structure for a mine double-car elevator, solving the problem that existing elevator shafts lack pedestrian access, affecting production efficiency and posing certain safety hazards.
[0012] To achieve the above objectives, this utility model provides the following technical solution:
[0013] A mine double-car elevator shaft structure includes a shaft body and an external PLC controller. A safety passage is connected to the surface of the shaft body. A ventilation mechanism is fixedly connected to the safety passage. An isolation mechanism is installed inside the safety passage. The safety passage includes a first passage, a second passage, a third passage, and a fourth passage. The ventilation mechanism includes a first ventilation pipe, a second ventilation pipe, and a ventilation fan. The isolation mechanism includes a fireproof isolation curtain.
[0014] Preferably, an inlet is provided on the side of the first channel near the shaft body, and a through slot is also provided on the shaft body near the inlet.
[0015] Preferably, there is a connecting channel between the upper half of the first channel and the bottom of the second channel, a connecting channel between the upper half of the second channel and the bottom of the third channel, and a connecting channel between the upper half of the third channel and the bottom of the fourth channel, for a total of three connecting channels.
[0016] Preferably, each of the three connecting channels is equipped with three layers of fireproof isolation curtains, for a total of nine fireproof isolation curtains, which are made of ceramic fiber cloth.
[0017] Preferably, several ladders are fixedly connected to the side of the first, second, third, and fourth channels away from the shaft body. A safety monitoring unit is fixedly installed in the middle section of the first, second, third, and fourth channels. The safety monitoring unit includes a mounting bracket, a combustible gas sensor, a toxic gas sensor, and an LED light. The safety monitoring unit is electrically connected to an external PLC controller.
[0018] Preferably, the tops of the first, second, and third channels are all arc-shaped, the first ventilation pipe is connected to the tops of the first and third channels via a connecting pipe, and the second ventilation pipe is connected to the top of the second channel via a connecting pipe.
[0019] Preferably, the connecting pipes between the first and second ventilation pipes and the first, second, and third channels are all inclined from bottom to top, which facilitates the passage of dense smoke and also facilitates ventilation.
[0020] Preferably, there are two ventilation fans, which are installed on the top of the first ventilation duct and the second ventilation duct, respectively.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] I. The shaft body of this application is used to install a double-car elevator. When the elevator is damaged, the workers at the bottom of the mine can enter the safety passage through the entrance and climb the ladder to the top of the safety passage to transfer to the outside. This ensures that the workers still have a way to transfer to the outside when the elevator is damaged, which solves the problem that the existing elevator shaft lacks a pedestrian passage, affects production efficiency, and poses certain safety hazards.
[0023] II. In this application, when a fire or toxic gas leak occurs at the bottom of the mine, taking the elevator is obviously very dangerous. At this time, workers can be transferred through the safety passage. This application is equipped with a safety monitoring unit. When the safety monitoring unit detects toxic and flammable gases, two ventilation fans start simultaneously, and the gas in the safety passage is discharged to the outside through the first ventilation pipe and the second ventilation pipe. When workers escape, the safety monitoring unit provides lighting, and each fireproof isolation curtain simply isolates the gas to prevent the gas from filling the entire safety passage. Since the first, second, and third passages are all located with arched domes, dense smoke and other harmful gases will collect at the top of the first, second, and third passages and be easily discharged by the first and second ventilation pipes. Most of the harmful gases will be isolated and discharged in the first passage section, which greatly increases the safety of workers and makes this application highly safe. Attached Figure Description
[0024] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 This is a structural diagram of the safety passage of this utility model;
[0027] Figure 3 This is a cross-sectional structural diagram of the safety passage of this utility model;
[0028] Figure 4 This is a structural diagram of the first ventilation pipe and ventilation fan of this utility model.
[0029] Legend: 1. Shaft body; 2. Safety passage; 3. First ventilation pipe; 4. Second ventilation pipe; 5. Ventilation fan; 6. Ladder; 7. Safety monitoring unit; 8. Fireproof isolation curtain; 201. First passage; 202. Second passage; 203. Third passage; 204. Fourth passage; 205. Connecting passage; 206. Entrance. Detailed Implementation
[0030] This application provides a mine double-car elevator shaft structure, which effectively solves the problem that existing elevator shafts lack pedestrian access, affecting production efficiency and posing certain safety hazards.
[0031] Example
[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this embodiment effectively solves the technical problem that the lack of pedestrian access in existing elevator shafts affects production efficiency and poses certain safety hazards. The overall approach is as follows:
[0033] To address the problems existing in the prior art, this utility model provides a shaft structure for a mine double-car elevator, including a shaft body 1 and an external PLC controller. A safety passage 2 is connected to the surface of the shaft body 1. A ventilation mechanism is fixedly connected to the safety passage 2. An isolation mechanism is installed inside the safety passage 2. The safety passage 2 includes a first passage 201, a second passage 202, a third passage 203, and a fourth passage 204. The ventilation mechanism includes a first ventilation pipe 3, a second ventilation pipe 4, and a ventilation fan 5. The isolation mechanism includes a fireproof isolation curtain 8.
[0034] The first channel 201 has an inlet 206 on the side near the shaft body 1, and the shaft body 1 also has a through slot at a position close to the inlet 206.
[0035] A connecting channel 205 connects the upper half of the first channel 201 to the bottom of the second channel 202, a connecting channel 205 connects the upper half of the second channel 202 to the bottom of the third channel 203, and a connecting channel 205 connects the upper half of the third channel 203 to the bottom of the fourth channel 204. There are a total of three connecting channels 205.
[0036] Each of the three connecting channels 205 is equipped with three layers of fireproof isolation curtains 8, for a total of nine fireproof isolation curtains 8, which are made of ceramic fiber cloth.
[0037] Several ladders 6 are fixedly connected to the side of the first channel 201, the second channel 202, the third channel 203, and the fourth channel 204 away from the shaft body 1. A safety monitoring unit 7 is fixedly installed in the middle section of the first channel 201, the second channel 202, the third channel 203, and the fourth channel 204. The safety monitoring unit 7 includes a mounting bracket, a combustible gas sensor, a toxic gas sensor, and an LED light. The safety monitoring unit 7 is electrically connected to an external PLC controller.
[0038] The tops of the first channel 201, the second channel 202, and the third channel 203 are all arc-shaped. The first ventilation pipe 3 is connected to the tops of the first channel 201 and the third channel 203 through a connecting pipe, and the second ventilation pipe 4 is connected to the top of the second channel 202 through a connecting pipe.
[0039] The connecting pipes between the first ventilation pipe 3 and the second ventilation pipe 4 and the first channel 201, the second channel 202 and the third channel 203 are all inclined from bottom to top, which facilitates the passage of dense smoke and also facilitates ventilation.
[0040] There are two ventilation fans 5, which are installed on the top of the first ventilation duct 3 and the second ventilation duct 4 respectively.
[0041] The shaft body 1 is used to install a double-car elevator, providing installation space for the elevator.
[0042] Safety passage 2 is a passage for workers to move to the outside in case of dangerous situations such as elevator malfunction, fire at the bottom of the mine, or toxic gas leak.
[0043] The first ventilation duct 3 is connected to the top of the first channel 201 and the third channel 203 via a connecting pipe. In conjunction with the ventilation fan 5, it exhausts the gas in the safety channel 2 to the outside and can also introduce fresh air from the outside into the safety channel 2.
[0044] The second ventilation duct 4 is connected to the top of the second channel 202 via a connecting pipe. In conjunction with the ventilation fan 5, it exhausts the gas in the safety channel 2 to the outside and can also introduce fresh air from the outside into the safety channel 2.
[0045] There are two ventilation fans 5, which are installed on the top of the first ventilation duct 3 and the second ventilation duct 4 respectively. When started, they exhaust the gas in the safety passage 2 to the outside, and can also introduce fresh air from the outside into the safety passage 2.
[0046] The ladder 6 is fixedly connected to the side of the first passage 201, the second passage 202, the third passage 203 and the fourth passage 204 away from the shaft body 1, so that workers can climb in the safety passage 2 to transfer to the outside.
[0047] The safety monitoring unit 7 is fixedly installed in the middle section of the first channel 201, the second channel 202, the third channel 203 and the fourth channel 204. It includes a mounting bracket, a combustible gas sensor, a toxic gas sensor and an LED light. It is electrically connected to an external PLC controller to detect toxic and combustible gases and provide lighting.
[0048] The fireproof isolation curtain 8 is made of ceramic fiber cloth and is installed in three connecting channels 205, for a total of nine. It can simply isolate the gas and prevent the gas from filling the entire safety channel 2.
[0049] The first passage 201 has an entrance 206 on the side near the shaft body 1, allowing workers to enter the safety passage 2. Its top is set in an arc shape to facilitate the collection and discharge of harmful gases such as dense smoke.
[0050] The second channel 202 is connected to the first channel 201 and the third channel 203 via the connecting channel 205. The top is set in an arc shape to facilitate the collection and discharge of harmful gases such as dense smoke.
[0051] The third channel 203 is connected to the second channel 202 and the fourth channel 204 via the connecting channel 205. The top is set in an arc shape to facilitate the collection and discharge of harmful gases such as dense smoke.
[0052] The fourth passage 204 is connected to the third passage 203 via the connecting passage 205, allowing workers to climb and transfer to the outside.
[0053] There are three connecting channels 205, which connect the first channel 201, the second channel 202, the third channel 203 and the fourth channel 204, and are equipped with fireproof isolation curtains 8 inside.
[0054] The entrance 206 is located on the side of the first passage 201 near the shaft body 1, corresponding to the through slot of the shaft body 1, allowing workers to enter the safety passage 2 from the shaft body 1.
[0055] Working principle:
[0056] The first step is that the shaft body 1 of this application is used to install a double-car elevator. When the elevator is damaged, the workers at the bottom of the mine can enter the safety passage 2 through the entrance 206 (most elevators in the mine are relatively simple, with only a bottom plate and a guardrail made of steel pipes in the car), and climb to the top of the safety passage 2 via the ladder 6 to transfer to the outside, so that the workers still have a way to transfer to the outside when the elevator is damaged.
[0057] The second step involves the use of elevators in case of fire or toxic gas leaks at the bottom of the mine. Workers can evacuate via safety passage 2. This application incorporates a safety monitoring unit 7. When the monitoring unit 7 detects toxic or flammable gases (dense smoke, methane, etc.), two ventilation fans 5 activate simultaneously, expelling the gas from safety passage 2 to the outside through the first ventilation pipe 3 and the second ventilation pipe 4 (normally, they slowly introduce fresh air into safety passage 2). During evacuation, the safety monitoring unit 7 provides lighting, and fireproof curtains 8 simply isolate the gas, preventing it from filling the entire safety passage 2. Since the first passage 201, second passage 202, and third passage 203 all have arched domes, dense smoke and other harmful gases will accumulate at the top of these passages, facilitating their removal by the first ventilation pipe 3 and the second ventilation pipe 4. Most of the harmful gases are isolated and removed in the first passage 201 section, greatly increasing worker safety.
[0058] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A shaft structure for a mine double-car elevator, comprising a shaft body (1) and an external PLC controller, characterized in that, The surface of the shaft body (1) is connected to a safety passage (2), the safety passage (2) is fixedly connected to a ventilation mechanism, and an isolation mechanism is provided inside the safety passage (2); The safety passage (2) includes a first passage (201), a second passage (202), a third passage (203), and a fourth passage (204); The ventilation system includes a first ventilation duct (3), a second ventilation duct (4), and a ventilation fan (5); The isolation mechanism includes a fireproof isolation curtain (8).
2. The shaft structure of a mine double-car elevator as described in claim 1, characterized in that: The first channel (201) has an inlet (206) on the side near the shaft body (1), and the shaft body (1) also has a through slot at a position close to the inlet (206).
3. The shaft structure of a mine double-car elevator as described in claim 2, characterized in that: A connecting channel (205) connects the upper half of the first channel (201) to the bottom of the second channel (202), a connecting channel (205) connects the upper half of the second channel (202) to the bottom of the third channel (203), and a connecting channel (205) connects the upper half of the third channel (203) to the bottom of the fourth channel (204). There are a total of three connecting channels (205).
4. The shaft structure of a mine double-car elevator as described in claim 3, characterized in that: Each of the three connecting channels (205) is equipped with a three-layer fireproof isolation curtain (8).
5. The shaft structure of a mine double-car elevator as described in claim 4, characterized in that: Ladders (6) are fixedly connected to the side of the first channel (201), the second channel (202), the third channel (203) and the fourth channel (204) away from the shaft body (1), and safety monitoring units (7) are fixedly installed in the middle section of the first channel (201), the second channel (202), the third channel (203) and the fourth channel (204).
6. The shaft structure of a mine double-car elevator as described in claim 5, characterized in that: The tops of the first channel (201), the second channel (202) and the third channel (203) are all arc-shaped. The first ventilation pipe (3) is connected to the tops of the first channel (201) and the third channel (203) through a connecting pipe. The second ventilation pipe (4) is connected to the top of the second channel (202) through a connecting pipe.
7. The shaft structure of a mine double-car elevator as described in claim 6, characterized in that: The connecting pipes between the first ventilation pipe (3) and the second ventilation pipe (4) and the first channel (201), the second channel (202) and the third channel (203) are all inclined from bottom to top.
8. The shaft structure of a mine double-car elevator as described in claim 7, characterized in that: The number of ventilation fans (5) is two, and the two ventilation fans (5) are respectively installed on the top of the first ventilation pipe (3) and the second ventilation pipe (4).