Vertical shaft lifting safety system
By connecting the hydraulic control device and the hinged drive cylinder flap design in series in the vertical shaft lifting safety system, the problem of synchronous operation of the vehicle-blocking device and the safety door is solved, safe and efficient operation and rapid fault handling are achieved, and the staff are ensured. Safety.
Patent Information
- Application Number
- CN202420428555.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-05
AI Technical Summary
In the existing vertical shaft lift safety system, the vehicle blocking device and safety door cannot be opened and closed at the same time, the operation time is long, and the safety of staff is threatened during maintenance.
A vertical shaft lift safety system is designed, and the safety door and the vehicle-resisting device are connected in series through hydraulic control devices, and the hinge setting of the driving cylinder and the flap is adopted, so that the vehicle-resisting device and the safety door can run simultaneously, ensuring that the flap is in the maintenance period. Proceed on the ground to avoid personnel danger.
The synchronous operation of the vehicle-blocking device and the safety door is achieved, the operating time is shortened, the safety production efficiency is improved, and the emergency stop locking mechanism is used to stop working in a timely manner in the event of a failure to ensure the safety of personnel and devices.
Smart Images
Figure CN222138435U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of underground electromechanical equipment in coal mines, in particular to a vertical shaft hoisting safety system. Background Art
[0002] According to the "Safety Regulations for Coal Mines", a car-blocking device should be installed in front of the safety door of the vertical shaft hoisting safety system. At the same time, during the first-level safety production standardization acceptance process of Selian No. 2 Mine, relevant experts proposed to complete the car-blocking device within a limited time. The existing car-blocking device and safety door use two sets of reversing valves and two sets of oil pipes, which are not only complicated to install, costly, and have a long construction period, but the car-blocking device and the safety door cannot be opened or closed at the same time. The entire operation process takes a long time, which is not conducive to safe production.
[0003] For example, the announcement number is CN214569983 U's comparative document discloses a hydraulic control device for a mine safety door and a car blocker, comprising: a hydraulic station, comprising a hydraulic pump, a first reversing valve, a second reversing valve and an oil tank, wherein the first hydraulic cylinder is connected to the safety door, and the locking and opening of the safety door are controlled by the extension and contraction of the piston rod; the second hydraulic cylinder is connected to the car blocker, and the locking and opening of the car blocker are controlled by the extension and contraction of the piston rod, and the first hydraulic cylinder and the second hydraulic cylinder are both connected to an oil return branch pipe, and when the safety door and the car blocker are locked, after the hydraulic station stops running, when the oil pressure is higher than the second oil pressure limit, the hydraulic oil is pressure-relieved back to the oil tank through the oil return branch pipe; the device is provided with two reversing valves, so that the first hydraulic cylinder and the second hydraulic cylinder are arranged in parallel, so that the car blocker is slowly opened after the safety door is opened, or the car blocker is slowly closed after the safety door is closed, and the whole operation process takes a long time; and the car blocker of the device runs back and forth straight up and down, and when the car blocker cannot be moved up and needs to be repaired, the staff needs to go underground to operate, which is not conducive to the personal safety of the staff. Utility Model Content
[0004] The technical problem to be solved by the utility model is how to make the vehicle blocking device and the safety door operate synchronously.
[0005] The utility model solves the above technical problems through the following technical means:
[0006] A vertical shaft hoisting safety system comprises a safety door (2), a vehicle blocking device (3), and a hydraulic control device (4); the safety door (2) and the vehicle blocking device (3) are connected in series via the hydraulic control device (4); the vehicle blocking device (3) comprises a driving cylinder (31) and a flap (32); the driving cylinder (31) is fixed below the ground; the output end of the driving cylinder (31) extends out of the ground and is rotatably connected to the flap (32); both sides of the flap (32) are hinged on the ground; the driving cylinder (31) can drive the flap (32) to rotate with the ground as the horizontal line; the vehicle blocking device (3) also comprises a plurality of connecting pins (33); the driving cylinder (31) is fixed below the ground via the connecting pins (33); the output end of the driving cylinder (31) extends out of the ground and is fixed to the flap (32) via the connecting pins (33); both sides of the flap (32) are fixed to the ground via the connecting pins (33).
[0007] Beneficial effects: Through the mutual cooperation of the safety door, the vehicle blocking device and the hydraulic control device, the vehicle blocking device and the safety door can operate synchronously; through the hinged setting of the driving cylinder and the flap, the driving cylinder can drive the flap to rotate with the ground as the horizontal line. If the flap cannot be rotated, maintenance only needs to be carried out on the ground. If it is necessary to enter the underground for maintenance, the flap will not go into the underground to squeeze the maintenance personnel, which effectively ensures the safety of the maintenance personnel.
[0008] Furthermore, it also comprises a vertical shaft hoisting device (1), wherein the safety door (2) and the vehicle blocking device (3) are arranged on the periphery of the vertical shaft hoisting device (1).
[0009] Beneficial effect: By arranging the safety door and the vehicle blocking device on the periphery of the vertical shaft hoisting device, it is possible to prevent the driver of the subsequent vehicle from accidentally operating and crashing into the cage.
[0010] Furthermore, the vertical shaft hoisting device (1) comprises a winch (11), a sling (12), and a cage (13); the cage (13) is suspended on the sling (12); the cage (13) is arranged in the vertical shaft (5); the sling (12) is wound around the winch (11); and the sling (12) can drive the cage (13) to be raised or lowered.
[0011] Furthermore, a safety door (2) and a vehicle blocking device (3) are sequentially arranged on the outer ground of the vertical shaft hoisting device (1).
[0012] Furthermore, the hydraulic control device (4) comprises a hydraulic station (41), a reversing valve (42), a serial oil inlet pipe (43), and a serial oil return pipe (44); the reversing valve (42) is fixed on the hydraulic station (41); the input end of the serial oil inlet pipe (43) is connected to the reversing valve (42); the output end of the serial oil inlet pipe (43) is connected to the safety door (2) and the driving cylinder (31); the input end of the serial oil return pipe (44) is connected to the safety door (2) and the driving cylinder (31); the output end of the serial oil return pipe (44) is connected to the reversing valve (42).
[0013] Beneficial effect: Through the mutual cooperation of the hydraulic station, the reversing valve, the serial oil inlet pipe and the serial oil return pipe, the oil inlet pipe and the oil return pipe of the driving cylinder are respectively connected in series with the oil inlet pipe and the oil return pipe of the safety door cylinder, and the vehicle blocking device is locked with the safety door. When the safety door is opened, the flap turns down, and when the safety door falls, the flap turns up.
[0014] Furthermore, the hydraulic control device (4) also includes an emergency stop lock, and the reversing valve (42) is electrically connected to the emergency stop lock.
[0015] Beneficial effect: Through the setting of the emergency stop lock, when the safety door or the vehicle blocking device has a sudden failure, affecting the safety of personnel and equipment, the emergency stop lock can be pressed, and the safety door and the vehicle blocking device can stop working at the same time, ensuring the safety of personnel and equipment.
[0016] Furthermore, the series oil inlet pipe (43) comprises a main oil inlet pipe (431), a first three-way valve (432), a first auxiliary oil inlet pipe (433), and a second auxiliary oil inlet pipe (434); one end of the main oil inlet pipe (431) is connected to the reversing valve (42); the other end of the main oil inlet pipe (431) is fixed with the first three-way valve (432); the other two ends of the first three-way valve (432) are connected to the safety door (2) and the driving cylinder (31) through the first auxiliary oil inlet pipe (433) and the second auxiliary oil inlet pipe (434), respectively.
[0017] Furthermore, the series oil return pipe (44) includes a main oil return pipe (441), a second three-way valve (442), a first auxiliary oil return pipe (443), and a second auxiliary oil return pipe (444); one end of the main oil return pipe (441) is connected to the reversing valve (42); the other end of the main oil return pipe (441) is fixed with a second three-way valve (442); the other two ends of the second three-way valve (442) are connected to the safety door (2) and the driving cylinder (31) through the first auxiliary oil return pipe (443) and the second auxiliary oil return pipe (444), respectively.
[0018] The advantages of the utility model are:
[0019] The utility model enables the vehicle blocking device and the safety door to operate synchronously through the mutual cooperation of the safety door, the vehicle blocking device and the hydraulic control device.
[0020] The utility model can prevent the driver of the following vehicle from colliding with the cage due to misoperation by arranging the safety door and the vehicle blocking device on the periphery of the vertical shaft lifting device.
[0021] The utility model drives the oil cylinder and the flap to be hingedly arranged, so that the driving cylinder can drive the flap to rotate with the ground as the horizontal line. If the flap cannot be rotated, maintenance only needs to be carried out on the ground. If maintenance needs to be carried out underground, the flap will not go into the underground and squeeze the maintenance personnel, thereby effectively ensuring the safety of the maintenance personnel.
[0022] The utility model realizes mutual cooperation among a hydraulic station, a reversing valve, a series oil inlet pipe and a series oil return pipe, wherein the oil inlet pipe and the oil return pipe of the driving oil cylinder are respectively connected in series with the oil inlet pipe and the oil return pipe of the safety door oil cylinder, so that the vehicle blocking device and the safety door are locked. When the safety door is opened, the flap is rotated down, and when the safety door is dropped, the flap is rotated up.
[0023] The utility model provides an emergency stop lock. When a sudden failure occurs in the safety door or the vehicle blocking device, which affects the safety of personnel and the device, the emergency stop lock can be pressed, and the safety door and the vehicle blocking device can stop working at the same time, thereby ensuring the safety of personnel and the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of a vertical shaft hoisting safety system according to a first embodiment of the utility model;
[0025] Figure 2 This is a schematic diagram of the assembly of a hydraulic control device in a vertical shaft hoisting safety system in Embodiment 1 of the utility model;
[0026] Figure 3 It is a right view of the vehicle blocking device in the vertical shaft hoisting safety system of Example 1 of the utility model. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Embodiment 1
[0029] like Figure 1 , Figure 2As shown, this embodiment provides a vertical shaft hoisting safety system, including a vertical shaft hoisting device 1, a safety door 2, a vehicle blocking device 3, and a hydraulic control device 4.
[0030] like Figure 1 , Figure 2 As shown, the vertical shaft hoisting device 1 includes a winch 11, a sling 12, and a cage 13. The cage 13 is suspended in the vertical shaft 5 by the sling 12. The sling 12 is wound around the winch 11, and the lifting of the cage 13 is achieved by the sling 12. A safety door 2 and a car blocking device 3 are sequentially arranged on the outer ground of the vertical shaft 5, and the safety door 2 and the car blocking device 3 are linked by a hydraulic control device 4.
[0031] like Figure 1 , Figure 3 As shown, the vehicle blocking device 3 includes a driving cylinder 31, a flap 32, and a plurality of connecting pins 33. The driving cylinder 31 is fixed below the ground through the connecting pins 33. The output end of the driving cylinder 31 extends out of the ground and is fixed with a flap 32 through the connecting pins 33. Both sides of the flap 32 are fixed to the ground through the connecting pins 33. The driving cylinder 31 can drive the flap 32 to rotate with the ground as the horizontal line. If the flap 32 cannot rotate, maintenance only needs to be carried out on the ground. If maintenance needs to be carried out underground, the flap 32 will not go underground to squeeze the maintenance personnel, thereby effectively ensuring the safety of the maintenance personnel.
[0032] like Figure 1 , Figure 2 , Figure 3As shown, the hydraulic control device 4 includes a hydraulic station 41, a reversing valve 42, a serial oil inlet pipe 43, a serial oil return pipe 44, and an emergency stop lock (not shown). The reversing valve 42 is fixed on the hydraulic station 41. The input end of the serial oil inlet pipe 43 is connected to the reversing valve 42. The output end of the serial oil inlet pipe 43 is connected to the safety door 2 and the driving cylinder 31. The input end of the serial oil return pipe 44 is connected to the safety door 2 and the driving cylinder 31. The output end of the oil pipe 44 is connected to the reversing valve 42, and the oil inlet pipe and the oil return pipe of the driving oil cylinder 31 are connected in series with the oil inlet pipe and the oil return pipe of the safety door 2 oil cylinder respectively, and the vehicle blocking device 3 is locked with the safety door 2. When the safety door 2 is opened, the flap 32 rotates down, and when the safety door 2 falls, the flap 32 rotates up; the series oil inlet pipe 43 includes a main oil inlet pipe 431, a first three-way valve 432, a first auxiliary oil inlet pipe 433, and a second auxiliary oil inlet pipe 434. One end is connected to the reversing valve 42, and the other end of the main oil inlet pipe 431 is fixed with a first three-way valve 432. The other two ends of the first three-way valve 432 are connected to the safety door 2 and the driving cylinder 31 through the first auxiliary oil inlet pipe 433 and the second auxiliary oil inlet pipe 434 respectively. The reversing valve 42 controls the oil to enter the safety door 2. The safety door 2 opens and enters the driving cylinder 31 at the same time. The driving cylinder 31 drives the flap 32 to rotate close to the ground; the series return oil pipe 44 includes the main return oil pipe 441, the second auxiliary oil inlet pipe 433, and the second auxiliary oil inlet pipe 434. Three-way valve 442, first auxiliary oil return pipe 443, second auxiliary oil return pipe 444, one end of main oil return pipe 441 is connected to reversing valve 42, the other end of main oil return pipe 441 is fixed with second three-way valve 442, the other two ends of second three-way valve 442 are connected to safety door 2 and driving cylinder 31 through first auxiliary oil return pipe 443 and second auxiliary oil return pipe 444 respectively, reversing valve 42 controls oil return, safety door 2 is closed, and driving cylinder 31 drives flap 32 to rotate away from the ground at the same time;
[0033] like Figure 1 , Figure 2 As shown, the reversing valve 42 is electrically connected to an emergency stop lock. When a sudden failure occurs in the safety door 2 or the vehicle blocking device 3, affecting the safety of personnel and equipment, the emergency stop lock is pressed, and the safety door 2 and the vehicle blocking device 3 can stop working at the same time, ensuring the safety of personnel and equipment.
[0034] like Figure 1 As shown, the car-blocking device 3 is equipped with a rising position sensor (not shown) and a descending position sensor (not shown), and the rising position sensor and the descending position sensor are electrically connected to the winch 11. If the car-blocking device 3 is not opened or closed, the signal of the winch 11 cannot be sent and the cage 13 cannot operate, thereby ensuring the safety of personnel and equipment.
[0035] When in use, the reversing valve 42 controls the oil to enter the safety door 2, the safety door 2 opens, and the driving cylinder 31 enters the driving cylinder 31 at the same time. The driving cylinder 31 drives the flap 32 to rotate close to the ground. After rotating to be flush with the ground, the cage 13 also reaches the ground. The first vehicle moves from right to left and passes through the flap 32 and the safety door 2 in sequence to enter the cage 13, and the cage 13 drives the vehicle to move down to the underground. At this time, in order to prevent the driver of the second vehicle from accidentally operating and hitting the cage 13, the reversing valve 42 controls the return oil, the safety door 2 is closed, and the driving cylinder 31 drives the flap 32 to rotate away from the ground to block the second vehicle. When the second vehicle needs to enter the cage 13, the above operation can be performed. When a sudden failure occurs in the safety door 2 or the vehicle blocking device 3, affecting the safety of personnel and equipment, the emergency stop lock is pressed, and the safety door 2 and the vehicle blocking device 3 can stop working at the same time.
[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A shaft hoisting safety system, characterized in that: It comprises a safety door (2), a vehicle blocking device (3), and a hydraulic control device (4); The safety door (2) and the vehicle blocking device (3) are connected in series via a hydraulic control device (4); The vehicle blocking device (3) comprises a driving cylinder (31) and a flap (32); the driving cylinder (31) is fixed below the ground; the output end of the driving cylinder (31) extends out of the ground and is rotatably connected to the flap (32); both sides of the flap (32) are hinged on the ground; the driving cylinder (31) can drive the flap (32) to rotate with the ground as a horizontal line; the vehicle blocking device (3) also comprises a plurality of connecting pins (33); the driving cylinder (31) is fixed below the ground via the connecting pins (33); the output end of the driving cylinder (31) extends out of the ground and is fixed to the flap (32) via the connecting pins (33); both sides of the flap (32) are fixed to the ground via the connecting pins (33).
2. A shaft hoisting safety system according to claim 1, characterized in that: It also comprises a vertical shaft hoisting device (1), wherein the safety door (2) and the vehicle blocking device (3) are arranged on the periphery of the vertical shaft hoisting device (1).
3. A shaft hoisting safety system according to claim 2, characterized in that: The vertical shaft hoisting device (1) comprises a winch (11), a sling (12), and a cage (13); the cage (13) is suspended on the sling (12); the cage (13) is arranged in the vertical shaft (5); the sling (12) is wound around the winch (11); and the sling (12) can drive the cage (13) to be raised or lowered.
4. A shaft hoisting safety system according to claim 2, characterized in that: A safety door (2) and a vehicle blocking device (3) are sequentially arranged on the outer side of the vertical shaft lifting device (1).
5. A shaft hoisting safety system according to claim 1, characterized in that: The hydraulic control device (4) comprises a hydraulic station (41), a reversing valve (42), a serial oil inlet pipe (43), and a serial oil return pipe (44). The reversing valve (42) is fixed on the hydraulic station (41). The input end of the serial oil inlet pipe (43) is connected to the reversing valve (42). The output end of the serial oil inlet pipe (43) is connected to the safety door (2) and the driving cylinder (31) at the same time. The input end of the serial oil return pipe (44) is connected to the safety door (2) and the driving cylinder (31) at the same time. The output end of the serial oil return pipe (44) is connected to the reversing valve (42).
6. A shaft hoisting safety system according to claim 5, characterized in that: The hydraulic control device (4) also includes an emergency stop lock, and the reversing valve (42) is electrically connected to the emergency stop lock.
7. A shaft hoisting safety system according to claim 5, characterized in that: The serial oil inlet pipe (43) comprises a main oil inlet pipe (431), a first three-way valve (432), a first auxiliary oil inlet pipe (433), and a second auxiliary oil inlet pipe (434); one end of the main oil inlet pipe (431) is connected to the reversing valve (42); the other end of the main oil inlet pipe (431) is fixed with the first three-way valve (432); the other two ends of the first three-way valve (432) are connected to the safety door (2) and the driving cylinder (31) through the first auxiliary oil inlet pipe (433) and the second auxiliary oil inlet pipe (434), respectively.
8. A shaft hoisting safety system according to claim 5, characterized in that: The series oil return pipe (44) comprises a main oil return pipe (441), a second three-way valve (442), a first auxiliary oil return pipe (443), and a second auxiliary oil return pipe (444); one end of the main oil return pipe (441) is connected to the reversing valve (42); the other end of the main oil return pipe (441) is fixed with a second three-way valve (442); the other two ends of the second three-way valve (442) are connected to the safety door (2) and the driving cylinder (31) through the first auxiliary oil return pipe (443) and the second auxiliary oil return pipe (444), respectively.