Car stopping device for preventing car from sliding down in inclined drift

Abstract

The utility model provides a car stopping device for preventing a car from sliding down in an inclined roadway, which belongs to the technical field of car stopping devices and comprises a car stopping beam, an air control box, an air cylinder, an air path system and an elastic buffer structure. The air control box is connected with the air cylinder through the air path system and used for controlling the air cylinder to act, and the air cylinder is connected with the car stopping beam and drives the car stopping beam to ascend and descend. The elastic buffering structure is installed on the surface of the side, facing the coming direction of the inclined drift sliding car, of the car stopping beam, a manual operation valve is arranged on the air control box and used for manually controlling connection and disconnection of the air path system so as to drive the air cylinder to act, the elastic buffering structure comprises a plurality of elastic buffering blocks and a spring, one end of the spring is fixedly connected with the car stopping beam, and the other end of the spring is fixedly connected with the air control box. A plurality of installation grooves are formed in the surface of the side, facing the coming direction of the inclined drift sliding-down car, of the car stopping beam, the problems that a traditional inclined drift sliding-down preventing car stopping device is prone to driving faults, and the structure lacks buffering are solved, and the reliability of the car stopping device is improved.

Description

A vehicle blocking device for preventing runaway vehicles in inclined tunnels Technical Field

[0001] This utility model belongs to the technical field of vehicle blocking devices, specifically, it relates to a vehicle blocking device for preventing runaway vehicles in inclined tunnels. Background Technology

[0002] In underground coal mining operations, inclined shaft hoisting and transportation are crucial links in the transportation of coal and equipment. The importance of runaway mine cars, particularly the car-stopping device, as a core piece of equipment ensuring the safety of inclined shaft transportation, is self-evident. Car-stopping devices are typically installed inside the inclined shaft and mainly consist of a barrier, a drive mechanism, and a control device. The barrier, generally made of high-strength metal, directly blocks runaway mine cars, skips, and other transportation equipment. The drive mechanism, which can be electric, pneumatic, or hydraulic, controls the raising, lowering, or opening and closing of the barrier. The control device operates and manages the drive mechanism, ensuring that the car-stopping device activates and functions at the appropriate time. When an accident occurs in the hoisting equipment in the inclined shaft, such as a broken wire rope or a failure of the connecting device leading to a runaway mine car, the car-stopping device can quickly activate, lowering the barrier to the intercepting position to prevent the runaway transportation equipment from rapidly sliding down the inclined shaft track, avoiding violent collisions with personnel, equipment, or other vehicles below. This effectively reduces casualties and property damage caused by accidents, making it a vital line of defense for safe coal mine production.

[0003] However, traditional anti-runaway car-stopping devices in inclined shafts currently have many drawbacks. From a drive perspective, some electric car-stopping devices rely on complex electrical control systems. In the harsh environment of underground mining, characterized by dampness and dust, these control components are prone to short circuits and poor contact, causing the device to malfunction. Furthermore, once an electric drive system fails, repairs are difficult and time-consuming, severely impacting the normal production schedule of the coal mine. While hydraulically driven car-stopping devices offer greater driving force, the hydraulic system carries the risk of oil leakage, which not only pollutes the underground environment but also leads to insufficient hydraulic pressure, affecting the reliability of the device. Simultaneously, the maintenance cost of hydraulic systems is high, requiring regular replacement of hydraulic oil and seals, increasing the operating costs of coal mining enterprises. In terms of structural design, traditional car-stopping devices often use fixed or simple lifting structures for the guardrails, lacking effective cushioning measures. When a runaway car impacts the guardrail, the enormous impact force acts directly on the guardrail and related connecting components, easily causing deformation and breakage of the guardrail, or even damaging the entire car-stopping device, shortening its service life. Moreover, a rigid impact could cause the vehicle to bounce back, triggering a secondary accident and posing a greater threat to the safety of personnel and equipment underground. In addition, traditional vehicle-stopping devices have poor installation flexibility and are difficult to adapt to inclined roadways with different slopes and cross-sectional dimensions. In some special roadway environments, they cannot play a good protective role. Summary of the Invention

[0004] In view of this, the present invention provides a car-stopping device for preventing runaway vehicles in inclined tunnels, which solves the problems of easy drive failure and lack of buffer in the structure of traditional car-stopping devices for preventing runaway vehicles in inclined tunnels, and improves the reliability of the car-stopping device.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a vehicle blocking device for preventing runaway vehicles in inclined tunnels, comprising a blocking beam, an air control box, a cylinder, an air circuit system, and an elastic buffer structure; the air control box is connected to the cylinder through the air circuit system and is used to control the cylinder's operation; the cylinder is connected to the blocking beam and drives the blocking beam to rise and fall; the elastic buffer structure is installed on the side of the blocking beam facing the direction of the runaway vehicle in the inclined tunnel; the air control box is equipped with a manual operation valve for manually controlling the on / off state of the air circuit system to drive the cylinder's operation.

[0007] The technical effects of the anti-runaway vehicle device for inclined roadways provided by this utility model are as follows: The core components and their connections are clearly defined. The coordination of the air control box, air circuit system and cylinder can accurately control the raising and lowering of the anti-runaway beam to effectively intercept runaway vehicles in inclined roadways. The elastic buffer structure is installed on the side of the anti-runaway beam facing the direction of the runaway vehicle, laying the foundation for absorbing the impact force of the runaway vehicle and ensuring the protective function of the device against the runaway vehicle. The overall structure is simple and the connection is reasonable, making it easy to install and maintain.

[0008] Based on the above technical solution, the anti-runaway vehicle device for inclined tunnels of this utility model can be further improved as follows:

[0009] The elastic buffer structure includes multiple elastic buffer blocks and springs. One end of the spring is fixedly connected to the stop beam, and the other end is fixedly connected to the elastic buffer block.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: The elastic buffer structure adopts a combination of elastic buffer block and spring. The spring has good elastic deformation capability, and the elastic buffer block can directly contact the sports car. The two work together to effectively absorb the impact force when the sports car crashes, through the compression of the spring and the deformation of the elastic buffer block, which greatly reduces the direct impact of the sports car on the stop beam, extends the service life of the stop beam, and at the same time reduces the risk of secondary injury to surrounding equipment and personnel caused by the rebound of the sports car, significantly improving the safety performance of the device.

[0011] Furthermore, the side surface of the stop beam facing the direction of the trolley is provided with multiple mounting grooves, and one end of the spring is embedded in the mounting groove and fixedly connected to the bottom of the mounting groove.

[0012] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the installation groove on the stop beam is used to fix the spring. This structural design makes the connection between the spring and the stop beam more stable, ensuring that the spring will not easily shift or fall off during the process of absorbing impact force, enhancing the reliability of the elastic buffer structure, and thus ensuring the stability and safety of the entire device when dealing with sports car collisions.

[0013] Furthermore, the elastic buffer block has a receiving groove adapted to the spring on the side near the spring, and the other end of the spring is embedded in the receiving groove and fixedly connected to the inner wall of the receiving groove.

[0014] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the elastic buffer block is provided with a receiving groove that matches the spring, which further optimizes the connection between the spring and the elastic buffer block, making the connection between the two tighter, so that they can work together better when absorbing impact force, improve the buffering effect, and at the same time prevent the spring from detaching from the elastic buffer block when under force, ensuring the integrity and effectiveness of the elastic buffer structure.

[0015] Furthermore, multiple elastic buffer blocks are arranged in a matrix on the surface of the stop beam. The elastic buffer blocks are square block structures and their surfaces are provided with anti-slip textures.

[0016] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: multiple elastic buffer blocks are distributed in a matrix on the surface of the vehicle stop beam, which can evenly disperse the impact force of the sports car, avoid excessive local stress that could damage the elastic buffer structure, improve the adaptability of the device to impacts at different angles and positions, and ensure that the entire vehicle stop beam can be effectively buffered and protected when hit by a sports car, thereby enhancing the protective performance and reliability of the device.

[0017] Furthermore, the stop beam includes multiple interconnected horizontal and vertical beams that form a frame structure, and the elastic buffer structure is installed on the side of the frame structure facing the direction of the vehicular traffic on the inclined road.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the blocking beam adopts a frame structure formed by horizontal beams and vertical beams, which has high strength and rigidity and can withstand the large impact force of the sports car; the elastic buffer structure is installed on the side of the frame structure facing the direction of the sports car, which not only ensures the structural stability of the blocking beam itself, but also gives full play to the buffering function of the elastic buffer structure, so that the device can effectively block the sports car while not being easily damaged, thus extending the overall service life of the device.

[0019] Furthermore, the pneumatic control box is installed on the side wall of the inclined tunnel, and the pneumatic system includes an air pipe, one end of which is connected to the pneumatic control box, and the other end of which passes through the side wall of the inclined tunnel and is connected to the cylinder.

[0020] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the air control box is set on the side wall of the inclined roadway, which is convenient for operators to control and operate; one end of the air pipe is connected to the air control box, and the other end passes through the side wall of the roadway and is connected to the cylinder. This layout makes the air circuit system more regular, reduces the space occupied by the air pipe in the roadway, and reduces the risk of the air pipe being hit or damaged, ensuring the normal operation of the air circuit system, thereby ensuring that the cylinder can respond to the command of the air control box in a timely manner and drive the stop beam to move.

[0021] Furthermore, the air pipe is laid along the side wall surface of the inclined tunnel and fixed to the tunnel side wall by fixing clips.

[0022] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the air pipe is laid along the side wall surface of the inclined roadway and fixed with fixing clips, which further standardizes the installation method of the air pipe, makes the air pipe installation more secure, and is not easy to loosen, shift or even fall off due to vibration or other factors in the roadway. This ensures the sealing and stability of the air circuit system, improves the gas transmission efficiency, and ensures that the cylinder can stably and reliably receive the instructions of the air control box to achieve the smooth lifting and lowering of the car stop beam.

[0023] Furthermore, one end of the cylinder is hinged to the bottom or side wall of the inclined tunnel, and the other end is hinged to the stop beam. The extension and retraction direction of the cylinder is adapted to the lifting and lowering direction of the stop beam.

[0024] The beneficial effects of adopting the above-mentioned improved scheme are as follows: one end of the cylinder is hinged to the bottom or side wall of the inclined roadway, and the other end is hinged to the stop beam. The extension and retraction direction of the cylinder is adapted to the lifting and lowering direction of the stop beam. This hinged connection method enables the cylinder to provide a stable and uniform driving force when driving the stop beam to lift and lower, ensuring that the lifting and lowering action of the stop beam is smooth and reliable, avoiding jamming or tilting. At the same time, it can also adapt to the inclined roadway environment with different angles and slopes, enhancing the installation flexibility and applicability of the device.

[0025] Furthermore, the crossbeam and the vertical beam are fixedly connected by welding or bolting.

[0026] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the crossbeams and vertical beams are fixedly connected by welding or bolting. Welded connections have high strength and stability, enabling the stop beam to form a solid whole; bolted connections facilitate installation and disassembly, making it convenient to maintain and replace parts of the stop beam. The choice between these two connection methods can be adjusted according to actual production and usage needs, improving the flexibility of stop beam manufacturing and maintenance.

[0027] Compared with the prior art, the beneficial effects of the anti-runaway vehicle device for inclined tunnels provided by this utility model are:

[0028] This utility model's elastic buffer pneumatic vehicle stop device has several significant advantages. In terms of safety, by incorporating an elastic buffer structure on the stop beam, the buffer system, composed of elastic buffer blocks and springs, effectively absorbs a large amount of impact force upon impact by utilizing the compression of the springs and the deformation of the elastic buffer blocks. Compared to traditional rigid vehicle stop devices, this greatly reduces the direct impact of the vehicle on the stop beam, lowers the risk of deformation and breakage of the stop beam, and extends the device's service life. Simultaneously, the buffering effect effectively suppresses the rebound of the vehicle, preventing secondary accidents and comprehensively ensuring the safety of personnel and equipment underground.

[0029] From an operational convenience perspective, the pneumatic drive system allows the pneumatic control box to easily control the cylinder movement, thus raising and lowering the wheel-stopping beam. Compared to the complex electronic control operation of electric drives and the precise adjustments of hydraulic drives, pneumatic operation is more intuitive and simpler. Operators do not require specialized skills training and can master the operation method through simple learning, reducing labor costs and the probability of operational errors. Moreover, the manual operation valve on the pneumatic control box allows operators to directly control the air circuit to open and close in case of malfunction of the automated control system or emergency situations, driving the cylinder to operate and ensuring that the wheel-stopping device functions normally under any circumstances, further improving operational reliability and emergency response capabilities.

[0030] Regarding the reliability and stability of the device, the stop beam adopts a frame structure composed of horizontal and vertical beams, combined with a stable connection between the springs, the stop beam, and the elastic buffer block. Features such as mounting grooves and receiving grooves ensure high structural strength and rigidity, enabling it to withstand significant impact forces from runaway vehicles. In the pneumatic system, air pipes are laid along the sidewalls of the tunnel and secured with clips. The cylinders are connected to the tunnel and the stop beam via hinges. These designs guarantee the airtightness and stability of the pneumatic system, as well as the uniform transmission of cylinder driving force, ensuring smooth and reliable lifting and lowering of the stop beam. This avoids problems such as jamming and tilting, ensuring stable operation of the device during long-term use. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.

[0032] Figure 1 is an example diagram of a vehicle blocking device for preventing runaway vehicles in inclined tunnels;

[0033] Figure 2 is a cross-sectional view of an elastic buffer structure for a vehicle blocking device used to prevent runaway vehicles in inclined tunnels;

[0034] Figure 3 shows the usage status of a vehicle blocking device for preventing runaway vehicles in inclined tunnels.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 10. Stop beam; 20. Air control box; 30. Cylinder; 40. Air circuit system; 50. Elastic buffer structure; 51. Elastic buffer block; 52. Spring. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0038] Figures 1-3 show a first embodiment of a vehicle blocking device for preventing runaway vehicles in inclined tunnels provided by this utility model. In this embodiment, it includes a vehicle blocking beam 10, an air control box 20, a cylinder 30, an air circuit system 40, and an elastic buffer structure 50. The air control box 20 is connected to the cylinder 30 through the air circuit system 40 and is used to control the action of the cylinder 30. The cylinder 30 is connected to the vehicle blocking beam 10 and drives the vehicle blocking beam 10 to rise and fall. The elastic buffer structure 50 is installed on the side surface of the vehicle blocking beam 10 facing the direction of the runaway vehicle in the inclined tunnel. The air control box 20 is provided with a manual operation valve for manually controlling the on / off state of the air circuit system 40 to drive the cylinder 30 to act.

[0039] The cylinder is cylindrical, with one end hinged to the bottom or side wall of the inclined tunnel via a hinge, and the other end also hinged to the stop beam via a hinge. The extension and retraction direction of the cylinder matches the lifting and lowering direction of the stop beam, so that when the cylinder extends or retracts, it can drive the stop beam to rise or fall smoothly.

[0040] When the inclined shaft transportation is in normal operation, the pneumatic control box 20 controls the cylinder to keep the car-stopping beam in the raised state, so as not to affect the passage of the mine car; when a runaway accident is detected, the pneumatic control box 20 controls the cylinder to act through the pneumatic circuit system, driving the car-stopping beam to quickly descend to the interception position, waiting for the runaway to hit.

[0041] In the above technical solution, the elastic buffer structure 50 includes multiple elastic buffer blocks 51 and springs 52. One end of the spring 52 is fixedly connected to the stop beam 10, and the other end is fixedly connected to the elastic buffer block 51.

[0042] When a sports car collides with a barrier beam, the elastic buffer block first comes into contact with the sports car, and then the spring is compressed to absorb and buffer the impact force of the sports car until the sports car comes to a stop.

[0043] Furthermore, in the above technical solution, the surface of the stop beam 10 facing the direction of the trolley car is provided with multiple mounting grooves, and one end of the spring 52 is embedded in the mounting groove and fixedly connected to the bottom of the mounting groove.

[0044] Furthermore, in the above technical solution, the elastic buffer block 51 is provided with a receiving groove that matches the spring 52 on the side near the spring, and the other end of the spring 52 is embedded in the receiving groove and fixedly connected to the inner wall of the receiving groove.

[0045] Furthermore, in the above technical solution, multiple elastic buffer blocks 51 are distributed in a matrix on the surface of the stop beam 10. The elastic buffer blocks 51 are square block structures and their surfaces are provided with anti-slip textures.

[0046] Furthermore, in the above technical solution, the stop beam 10 includes multiple interconnected horizontal beams and vertical beams, which form a frame structure, and the elastic buffer structure 50 is installed on the side of the frame structure facing the direction of the inclined roadway vehicle.

[0047] Furthermore, in the above technical solution, the pneumatic control box 20 is installed on the side wall of the inclined tunnel, and the pneumatic system 40 includes an air pipe, one end of which is connected to the pneumatic control box 20, and the other end passes through the side wall of the inclined tunnel and is connected to the cylinder 3.

[0048] The operator operates the air control box on the side wall of the tunnel. The air control box transmits gas to the cylinder through the air pipe. The cylinder performs corresponding actions according to the changes in gas pressure, driving the car stop beam to rise and fall.

[0049] Furthermore, in the above technical solution, the air pipe is laid along the side wall surface of the inclined tunnel and fixed to the tunnel side wall by fixing clips.

[0050] The pneumatic system mainly consists of air pipes. These pipes are long, flexible tubes, one end connected to the pneumatic control box, and the other end passing through the side wall of the inclined tunnel and connecting to the cylinder. The air pipes are laid along the surface of the inclined tunnel side wall and are secured to the side wall at regular intervals using fasteners to ensure a firm installation and prevent shaking or displacement. The fasteners are U-shaped, holding the air pipe in place, and then bolted to the side wall of the tunnel.

[0051] Furthermore, in the above technical solution, one end of the cylinder 3 is hinged to the bottom or side wall of the inclined tunnel, and the other end is hinged to the stop beam 10. The extension and retraction direction of the cylinder 3 is adapted to the lifting and lowering direction of the stop beam 10.

[0052] The pneumatic control box controls the extension and retraction of the cylinder. Due to the articulated structure, the extension and retraction force of the cylinder is smoothly transmitted to the blocking beam, causing the blocking beam to rise and fall smoothly in the predetermined direction to complete the interception or release operation.

[0053] Furthermore, in the above technical solution, the crossbeam and the vertical beam are fixedly connected by welding or bolting.

[0054] Specifically, the principle of this utility model is as follows:

[0055] The technical principle of this utility model's elastic buffer pneumatic stop device is based on the synergistic effect of pneumatic drive and elastic buffer. In terms of pneumatic drive, the air control box serves as the core control of the entire pneumatic system, managing the air circuit system through internal gas control valves. When the stop beam needs to be raised, the operator operates the air control box to open the corresponding valve, and compressed gas is transmitted to the cylinder through the air pipe. The air pipe is laid along the side wall of the inclined tunnel and fixed with fasteners. This layout ensures the sealing and stability of the gas during transmission, reduces the risk of gas leakage, and ensures that the compressed gas reaches the cylinder at a stable pressure and flow rate.

[0056] One end of the cylinder is hinged to the bottom or sidewall of the inclined tunnel, and the other end is hinged to the stop beam. The extension and retraction direction of the cylinder matches the lifting and lowering direction of the stop beam. When compressed gas enters the cylinder, it pushes the piston. Due to the hinged structure, the extension and retraction force of the cylinder can be smoothly and evenly transmitted to the stop beam, causing the stop beam to slowly rise in the predetermined direction, providing space for the normal passage of the mine car. When a runaway accident is detected, the operator operates the pneumatic control box again, switching the valve to release the gas in the cylinder. Under the action of gravity and the cylinder return mechanism, the stop beam quickly descends to the interception position, waiting for the runaway car to hit it.

[0057] For elastic cushioning, an elastic cushioning structure is installed on the side of the stop beam facing the oncoming vehicle on the inclined road. This structure consists of multiple elastic buffer blocks and springs. One end of the spring is fixed to the stop beam via a mounting groove, and the other end is embedded in a receiving groove within an elastic buffer block. When the vehicle impacts the stop beam, it first contacts the elastic buffer block, which is made of highly elastic rubber material. This block possesses excellent elasticity and toughness, allowing it to deform upon impact and absorb some of the impact force. Simultaneously, the spring is compressed, further absorbing and cushioning the impact force of the vehicle through its own elastic deformation.

Claims

1. A vehicle blocking device for preventing runaway vehicles in inclined tunnels, characterized in that, It includes a stop beam, an air control box, a cylinder, an air circuit system, and an elastic buffer structure; the air control box is connected to the cylinder through the air circuit system and is used to control the cylinder's movement; the cylinder is connected to the stop beam and drives the stop beam to rise and fall; the elastic buffer structure is installed on the side of the stop beam facing the direction of the oncoming vehicle in the inclined tunnel; the air control box is equipped with a manual operating valve for manually controlling the on / off state of the air circuit system to drive the cylinder's movement.

2. The anti-runaway vehicle device for inclined tunnels according to claim 1, characterized in that, The elastic buffer structure includes multiple elastic buffer blocks and springs. One end of the spring is fixedly connected to the stop beam, and the other end is fixedly connected to the elastic buffer block.

3. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 2, characterized in that, The side of the stop beam facing the direction of the trolley has multiple mounting grooves, and one end of the spring is embedded in the mounting groove and fixedly connected to the bottom of the mounting groove.

4. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 3, characterized in that, The elastic buffer block has a receiving groove adapted to the spring on the side near the spring, and the other end of the spring is embedded in the receiving groove and fixedly connected to the inner wall of the receiving groove.

5. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 4, characterized in that, Multiple elastic buffer blocks are arranged in a matrix on the surface of the vehicle stop beam. The elastic buffer blocks are square block structures and their surfaces are provided with anti-slip textures.

6. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 5, characterized in that, The stop beam includes multiple interconnected horizontal and vertical beams that form a frame structure. The elastic buffer structure is installed on the side of the frame structure facing the direction of the vehicular traffic on the inclined road.

7. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 6, characterized in that, The pneumatic control box is installed on the side wall of the inclined tunnel. The pneumatic system includes an air pipe, one end of which is connected to the pneumatic control box, and the other end of which passes through the side wall of the inclined tunnel and is connected to the cylinder.

8. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 7, characterized in that, The air pipe is laid along the side wall surface of the inclined tunnel and fixed to the tunnel side wall by fixing clips.

9. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 8, characterized in that, One end of the cylinder is hinged to the bottom or side wall of the inclined tunnel, and the other end is hinged to the stop beam. The extension and retraction direction of the cylinder is adapted to the lifting and lowering direction of the stop beam.

10. A vehicle blocking device for preventing runaway vehicles in inclined tunnels according to claim 9, characterized in that, The horizontal beams and vertical beams are fixedly connected by welding or bolts.

Images