Elevator shaft level buffering equipment with anti-falling function

Abstract

The utility model discloses an elevator shaft level buffering device with an anti-falling function, and particularly relates to the field of elevator buffering, the elevator shaft level buffering device comprises an elevator shaft body, fixed connecting frames are arranged on the inner wall of the elevator shaft body layer by layer, and through grooves are formed in the inner walls of the fixed connecting frames; buffering top blocks are embedded in the multiple sets of through grooves correspondingly, the ends, away from openings of the through grooves, of the buffering top blocks are connected with connecting plates, and high-elasticity springs are arranged on one sides of the connecting plates correspondingly. After a falling elevator is in contact with the buffering top block, the buffering top block is extruded through the buffering inclined surface, so that the buffering top block is pressed to contract towards the interior of the through groove, and the falling elevator is buffered to a certain extent through the fact that the high-elasticity spring is pressed to contract; each time the elevator passes through one set of fixed connecting frames, the elevator is buffered to a certain degree to achieve layer-by-layer buffering of the elevator, the buffering mode can effectively disperse impact force, and damage to the elevator structure and passengers is reduced.

Description

Technical Field

[0001] The utility model relates to the field of elevator buffering, and more specifically, to an elevator shaft level buffering device for preventing falling. Background Art

[0002] Vertical lifts are widely used as construction equipment in people's daily lives. During actual use, elevator maintenance personnel or passengers may accidentally fall into the elevator shaft, resulting in a very high casualty rate.

[0003] After searching, the existing patent (publication number: CN110329873A) discloses a car buffer device for an elevator shaft, including a first mounting plate, the bottom ends of the first mounting plate are movably connected to the top ends of telescopic rods welded to the upper and lower ends of the deep shaft near the middle, the middle part of the upper end of the first mounting plate is threadedly connected to a mounting frame through a connecting rod, the middle section of the top of the mounting frame is connected to a first thrust plate through a vertical rod, the middle part of the upper end of the second mounting plate is threadedly connected to a shock absorber frame, the middle part of the lower end of the shock absorber frame is provided with a shell, and the upper end of the shell is movably connected to a piston rod, and extends into the oil chamber provided in the middle of the shell, the upper end of the piston rod is fixedly connected to the second thrust plate, and the outer part of the piston rod is sleeved with a shock absorber spring. This invention has the advantages of improving the buffering performance of the car body and facilitating maintenance by providing a first infrared distance sensor, a second infrared distance sensor, a buffer spring, a shock absorber spring, an oil chamber, a piston rod and a telescopic rod structure. In the process of realizing the present invention, the inventor found that the existing technology has the following problems:

[0004] At present, the buffer equipment of elevator shafts is often equipped with buffers at the bottom of the elevator shaft. When the elevator stalls on a higher floor, the acceleration of the elevator falling is high, and the buffering effect of the buffer device at the bottom of the elevator shaft is limited. At the same time, the bottom buffer device does not have a secondary buffering function.

[0005] Therefore, in order to solve the above problems, an elevator shaft level buffer device with anti-fall function is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an elevator shaft level buffer device with anti-fall function to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an elevator shaft layer buffer device with anti-fall function, comprising an elevator shaft body, wherein fixed connecting frames are arranged layer by layer on the inner wall of the elevator shaft body, and through grooves are arranged on the inner wall of the fixed connecting frames, and buffer top blocks are embedded in multiple groups of the through grooves, and the end of the buffer top block away from the through groove opening is connected to a connecting plate, and high-elasticity springs are arranged on one side of the connecting plate, and the two ends of the high-elasticity spring are respectively connected to the buffer top block and the inner wall of the through groove, and a limiting cavity is provided on one side of the through groove, and the end of the connecting plate away from the buffer top block extends through the through groove to the limiting cavity and is connected A limiting plate, a damping slide is provided on the inner wall of the bottom end of the through slot, a damping strip is arranged and connected to the bottom end of the buffer top block, a telescopic electromagnetic lock is provided on the top side of the limiting cavity, the lock tongue of the telescopic electromagnetic lock extends into the limiting cavity and abuts against the limiting plate, a speed sensor probe is provided on the top side of the fixed connecting frame, a linkage controller is provided on one side of the telescopic electromagnetic lock, the linkage controller is connected to the speed sensor probe and the telescopic electromagnetic lock by electric wires, an independent power supply is provided at the bottom of the limiting cavity, a buffer slope is provided on the upper side of one end of the buffer top block close to the opening of the through slot, and the horizontal inclination angles of multiple groups of buffer slopes decrease layer by layer.

[0008] Preferably, a fall buffer mechanism is provided at the bottom of the elevator shaft body, and the fall buffer mechanism includes a buffer base, a No. 1 hydraulic buffer, a top plate, a buffer pad, a No. 2 hydraulic buffer and a secondary support top plate.

[0009] Preferably, a No. 1 hydraulic buffer is arranged at the top edge of the buffer base, and a top plate is connected to the top of multiple groups of No. 1 hydraulic buffers.

[0010] Preferably, a buffer pad is connected to the top of the top plate, and the buffer pad is made of rubber.

[0011] Preferably, a No. 2 hydraulic buffer is arranged at the center of the buffer base, and the diameter of the No. 2 hydraulic buffer is smaller than that of the No. 1 hydraulic buffer.

[0012] Preferably, the tops of the multiple groups of the No. 2 hydraulic buffers are connected with secondary support top plates, and the secondary support top plates are matched with the top plates.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. Compared with the prior art, the elevator shaft level buffer device with anti-fall function compresses the buffer top block through the buffer inclined surface when the falling elevator contacts the buffer top block, so that the buffer top block is compressed and contracted into the through groove, thereby compressing the high-elastic spring. The high-elastic spring is compressed and contracted, thereby providing a certain buffering effect on the falling elevator. At the same time, the damping strip slides and rubs in the damping slideway to generate damping, thereby avoiding the oscillation of the spring. After the elevator is buffered, it passes through the buffer top block and the rebound of the high-performance spring causes the end of the buffer top block to press the side wall of the elevator, thereby increasing the friction of the elevator during the falling process, further buffering the elevator. Whenever the elevator passes through a set of fixed connecting frames, it is buffered to a certain extent to achieve floor-by-floor buffering of the elevator, while avoiding the increase of the acceleration of the elevator stalling and falling. Moreover, since the horizontal inclination angle of the buffer inclined surface decreases layer by layer, the force required to withstand the elevator falling will gradually increase, thereby gradually slowing down the elevator falling speed until it stops falling. This buffering method can effectively disperse the impact force and reduce damage to the elevator structure and passengers.

[0015] 2. Compared with the existing technology, this elevator shaft level buffer device with anti-fall function is that when the elevator falls to the bottom of the elevator shaft, the No. 1 hydraulic buffer is activated first to absorb most of the energy. If the No. 1 hydraulic buffer is not enough to stop the elevator completely, the No. 2 hydraulic buffer further slows down the speed of the elevator to ensure the safety of passengers. At the same time, when the No. 1 hydraulic buffer cannot work normally due to improper maintenance or damage, the No. 2 hydraulic buffer will be activated as a backup safety measure. The No. 1 hydraulic buffer cooperates with the No. 2 hydraulic buffer to form a secondary buffer function, which improves the buffering effect and reduces damage to the elevator structure and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a structural schematic diagram of the fixed connecting frame of the utility model.

[0018] Figure 3 This is a schematic diagram of the contraction structure of the buffer top block of the utility model.

[0019] Figure 4 This is a schematic diagram of the buffer ejection structure of the utility model.

[0020] Figure 5 This is a structural diagram of the fall buffer mechanism of the utility model.

[0021] The accompanying drawings are marked as follows: 1. Elevator shaft body; 2. Fixed connecting frame; 201. Through groove; 3. Buffer top block; 4. Connecting plate; 5. High elasticity spring; 6. Limiting cavity; 7. Limiting plate; 8. Damping slide; 9. Damping strip; 10. Telescopic electromagnetic lock; 11. Speed ​​sensor probe; 12. Interlocking controller; 13. Independent power supply; 14. Buffer slope; 15. Fall buffer mechanism; 16. Base; 17. Hydraulic buffer No. 1; 18. Top plate; 19. Buffer pad; 20. Hydraulic buffer No. 2; 21. Secondary support top plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] As attached Figures 1 to 4 The elevator shaft layer buffer device shown in the figure has the function of preventing falling, comprising an elevator shaft body 1, wherein fixed connecting frames 2 are arranged layer by layer on the inner wall of the elevator shaft body 1, and through grooves 201 are arranged on the inner wall of the fixed connecting frame 2, and buffer top blocks 3 are embedded in the interior of multiple groups of through grooves 201, and the end of the buffer top block 3 away from the opening of the through groove 201 is connected to a connecting plate 4, and high-elasticity springs 5 ​​are arranged on the sides of the connecting plate 4, and the two ends of the high-elasticity spring 5 are respectively connected to the buffer top block 3 and the inner wall of the through groove 201, and a limiting cavity 6 is provided on one side of the through groove 201, and the end of the connecting plate 4 away from the buffer top block 3 passes through the through groove 201 and extends to the limiting cavity 6 to connect to the limiting plate 7, and the through groove 201 A damping slide 8 is provided on the inner wall of the bottom end, a damping strip 9 is arranged and connected to the bottom end of the buffer top block 3, a telescopic electromagnetic lock 10 is provided on one side of the top of the limit cavity 6, and the lock tongue of the telescopic electromagnetic lock 10 extends into the limit cavity 6 and abuts against the limit plate 7, a speed sensor probe 11 is provided on one side of the top of the fixed connecting frame 2, and a linkage controller 12 is provided on one side of the telescopic electromagnetic lock 10. The linkage controller 12 is connected to the speed sensor probe 11 and the telescopic electromagnetic lock 10 through electric wires, and an independent power supply 13 is provided at the bottom of the limit cavity 6. A buffer slope 14 is provided on the upper side of one end of the buffer top block 3 near the opening of the through slot 201, and the horizontal inclination angles of the multiple groups of buffer slopes 14 decrease layer by layer.

[0025] Wherein: the fixed connecting frame 2 can be connected and fixed in the elevator shaft body 1 layer by layer by fixing bolts. When the elevator in the elevator shaft body 1 is operating normally, the buffer top block 3 is embedded in the through groove 201, and the high elastic spring 5 is in a compressed state. The lock tongue of the telescopic electromagnetic lock 10 abuts against the limit plate 7 so that the limit plate 7 is fixed and locked, thereby limiting and fixing the connecting plate 4 and the buffer top block 3. When the elevator in the elevator shaft body 1 stalls and falls downward, the speed sensor probe 11 detects the abnormal elevator speed, thereby transmitting the signal to the linkage controller 12. The multi-layer linkage controller 12 is synchronously linked to simultaneously control the telescopic electromagnetic lock 10 to retract upward. After the electromagnetic lock 10 retracts upward, the limit on the limit plate 7 is cancelled. After the limit is cancelled, the end of the buffer slope 14 of the buffer top block 3 can be pushed out of the fixed connecting frame 2 by the rebound force of the high elastic spring 5. After the falling elevator contacts the buffer top block 3, the buffer slope 14 squeezes the buffer top block 3 so that the buffer top block 3 is pressed toward the through groove 20 1 contracts internally, thereby squeezing the high-elasticity spring 5. The high-elasticity spring 5 is compressed and contracted, thereby providing a certain buffering effect on the falling elevator. At the same time, the damping strip 9 slides and rubs in the damping slideway 8 to generate damping, thereby avoiding the oscillation of the spring 5. After the elevator is buffered, it passes through the buffer top block 3 and the rebound of the high-performance spring 5 causes the end of the buffer top block 3 to squeeze the side wall of the elevator, thereby increasing the friction of the elevator during the falling process, further buffering the elevator. Whenever the elevator passes through a group of fixed connecting frames 2, it is buffered to a certain extent to achieve floor-by-floor buffering of the elevator, while avoiding the increase in acceleration of the elevator stalling and falling. Moreover, since the horizontal inclination angle of the buffer slope 14 decreases layer by layer, the force required to withstand the elevator falling will gradually increase, thereby gradually slowing down the elevator falling speed until it stops falling. This buffering method can effectively disperse the impact force and reduce damage to the elevator structure and passengers. At the same time, the independent power supply 13 can ensure that the device can still supply energy to ensure the stability of the device when the elevator power system fails.

[0026] Example 2

[0027] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 5 As shown, see the following description for details:

[0028] As a preferred embodiment, a fall buffer mechanism 15 is provided at the bottom of the elevator shaft body 1, and the fall buffer mechanism 15 includes a buffer base 16, a No. 1 hydraulic buffer 17, a top plate 18, a buffer pad 19, a No. 2 hydraulic buffer 20 and a secondary support top plate 21; further, the fall buffer mechanism 15 can buffer the elevator when it stalls and falls to the bottom of the elevator shaft, thereby reducing damage to the elevator structure and passengers.

[0029] As a preferred embodiment, a No. 1 hydraulic buffer 17 is arranged at the top edge of the buffer base 16, and the tops of multiple groups of No. 1 hydraulic buffers 17 are connected with a top plate 18; further, the No. 1 hydraulic buffer 17 is a prior art that uses hydraulic damping to buffer the elevator, which can effectively absorb the kinetic energy of the elevator, reduce the impact force, and prevent or reduce the elevator from directly hitting the bottom or top of the shaft, thereby protecting the safety of passengers and the elevator structure. The top plate 18 plays a connecting role so that multiple groups of No. 1 hydraulic buffers 17 can perform buffering synchronously.

[0030] As a preferred embodiment, a buffer pad 19 is connected to the top of the top plate 18, and the buffer pad 19 is made of rubber; further, the buffer pad 19 also plays a buffering role.

[0031] As a preferred embodiment, a No. 2 hydraulic buffer 20 is arranged at the center of the buffer base 16. The diameter of the No. 2 hydraulic buffer 20 is smaller than that of the No. 1 hydraulic buffer 17. Furthermore, the No. 2 hydraulic buffer 20 is an additional buffering measure added to the No. 1 hydraulic buffer 17 to provide a smoother and safer deceleration process. The No. 1 hydraulic buffer 17 is started first to absorb most of the energy. If the No. 1 hydraulic buffer 17 is not enough to stop the elevator completely, the No. 2 hydraulic buffer 20 further slows down the speed of the elevator to ensure the safety of the passengers. At the same time, when the No. 1 hydraulic buffer 17 cannot work normally due to improper maintenance or damage, the No. 2 hydraulic buffer 20 will be activated as a backup safety measure. The No. 1 hydraulic buffer 17 cooperates with the No. 2 hydraulic buffer 20 to form a secondary buffering function, thereby improving the buffering effect and reducing damage to the elevator structure and passengers.

[0032] As a preferred embodiment, the tops of multiple groups of No. 2 hydraulic buffers 20 are connected with secondary support top plates 21, which match the top plates 18; further, the secondary support top plates 21 play a role in equalizing pressure so that multiple groups of No. 2 hydraulic buffers 20 can work synchronously.

[0033] The working process of the utility model is as follows: first, the fixed connecting frame 2 can be connected and fixed in the elevator shaft body 1 layer by layer by fixing bolts. When the elevator in the elevator shaft body 1 is operating normally, the buffer top block 3 is embedded in the through groove 201, and the high elastic spring 5 is in a compressed state. The lock tongue of the telescopic electromagnetic lock 10 abuts against the limit plate 7 so that the limit plate 7 is fixed and locked, thereby limiting and fixing the connecting plate 4 and the buffer top block 3. When the elevator in the elevator shaft body 1 stalls and falls downward, the speed sensor probe 11 detects that the elevator speed is abnormal, thereby transmitting the signal to the linkage controller 12, and the multi-layer linkage controllers 12 are synchronously linked to simultaneously control the telescopic electromagnetic lock 10 to move upward Contraction, after the electromagnetic lock 10 contracts upward, the limit on the limit plate 7 is cancelled. After the limit is cancelled, the end of the buffer slope 14 of the buffer top block 3 can be pushed out of the fixed connecting frame 2 by the rebound force of the high elastic spring 5. After the falling elevator contacts the buffer top block 3, the buffer top block 3 is squeezed by the buffer slope 14 so that the buffer top block 3 is compressed to shrink toward the inside of the through groove 201, thereby squeezing the high elastic spring 5. The high elastic spring 5 is compressed and contracted to provide a certain buffering effect on the falling elevator. At the same time, the damping strip 9 slides and rubs in the damping slide 8 to generate damping, thereby avoiding the vibration of the spring 5. After the elevator buffers, it passes through the buffer top block 3 and the rebound of the high-performance spring 5 makes the end of the buffer top block 3 touch the side wall of the elevator. The elevator is squeezed, thereby increasing the friction of the elevator during the falling process, further buffering the elevator. Every time the elevator passes a set of fixed connecting frames 2, it is buffered to a certain extent. Since the horizontal inclination angle of the buffer slope 14 decreases layer by layer, the force required for the elevator to fall will gradually increase, thereby gradually slowing down the elevator's falling speed until it stops falling. This buffering method can effectively disperse the impact force and reduce damage to the elevator structure and passengers. At the same time, the independent power supply 13 can ensure that the device can still supply energy to ensure the stability of the device when the elevator power system fails. The fall buffer mechanism 15 allows the elevator to be buffered when it stalls and falls to the bottom of the elevator shaft, reducing damage to the elevator structure and passengers. When the elevator falls to the bottom of the elevator shaft 1, the No. 1 hydraulic buffer 17 is activated first to absorb most of the energy. If the No. 1 hydraulic buffer 17 is not enough to stop the elevator completely, the No. 2 hydraulic buffer 20 will further slow down the speed of the elevator to ensure the safety of the passengers. At the same time, when the No. 1 hydraulic buffer 17 cannot work normally due to improper maintenance or damage, the No. 2 hydraulic buffer 20 will be activated as a backup safety measure. The No. 1 hydraulic buffer 17 cooperates with the No. 2 hydraulic buffer 20 to form a secondary buffering function, which improves the buffering effect and reduces damage to the elevator structure and passengers. The above is the working principle of the elevator shaft level buffer device with anti-fall function.

Claims

1. An elevator shaft level buffer device for preventing falling, comprising an elevator shaft body (1), characterized in that: The inner wall of the elevator shaft body (1) is provided with fixed connecting frames (2) arranged layer by layer, and the inner wall of the fixed connecting frame (2) is provided with through grooves (201) arranged thereon, and a plurality of groups of through grooves (201) are embedded with buffer top blocks (3) inside, and one end of the buffer top block (3) away from the opening of the through groove (201) is connected to a connecting plate (4), and one side of the connecting plate (4) is provided with a high elasticity spring (5), and the two ends of the high elasticity spring (5) are respectively connected to the buffer top block (3) and the inner wall of the through groove (201), and a limiting cavity (6) is provided on one side of the through groove (201), and the end of the connecting plate (4) away from the buffer top block (3) passes through the through groove (201) and extends into the limiting cavity (6) to connect with the limiting plate (7), and a damping slideway (8) is provided on the inner wall of the bottom end of the through groove (201). ), the bottom end of the buffer top block (3) is connected with a damping strip (9), a telescopic electromagnetic lock (10) is provided on one side of the top of the limiting cavity (6), the lock tongue of the telescopic electromagnetic lock (10) extends into the limiting cavity (6) and abuts against the limiting plate (7), a speed sensor probe (11) is provided on one side of the top of the fixed connecting frame (2), a linkage controller (12) is provided on one side of the telescopic electromagnetic lock (10), the linkage controller (12) is connected to the speed sensor probe (11) and the telescopic electromagnetic lock (10) through an electric wire, an independent power supply (13) is provided at the bottom of the limiting cavity (6), a buffer slope (14) is provided on the upper side of one end of the buffer top block (3) near the opening of the through slot (201), and the horizontal inclination angles of the multiple groups of the buffer slopes (14) decrease layer by layer.

2. The elevator shaft level buffer device for preventing falling according to claim 1, characterized in that: A fall buffer mechanism (15) is provided at the bottom of the elevator shaft body (1), and the fall buffer mechanism (15) comprises a buffer base (16), a No. 1 hydraulic buffer (17), a top plate (18), a buffer pad (19), a No. 2 hydraulic buffer (20) and a secondary support top plate (21).

3. The elevator shaft level buffer device for preventing falling according to claim 2, characterized in that: A No. 1 hydraulic buffer (17) is arranged at the top edge of the buffer base (16), and a top plate (18) is connected to the top of multiple groups of No. 1 hydraulic buffers (17).

4. The elevator shaft level buffer device for preventing falling according to claim 3, characterized in that: The top of the top plate (18) is connected with a buffer pad (19), and the buffer pad (19) is made of rubber.

5. The elevator shaft level buffer device for preventing falling according to claim 4, characterized in that: A No. 2 hydraulic buffer (20) is arranged at the center of the buffer base (16), and the diameter of the No. 2 hydraulic buffer (20) is smaller than that of the No. 1 hydraulic buffer (17).

6. The elevator shaft level buffer device for preventing falling according to claim 5, characterized in that: The tops of the plurality of groups of the second hydraulic buffers (20) are connected with a secondary support top plate (21), and the secondary support top plate (21) matches the top plate (18).

Images