Elevator with safety lock

Abstract

The utility model discloses an elevator with a safety lock, comprising a main body limit column, a deceleration unit, a sliding deceleration unit and a locking unit; a plurality of latch holes are provided at the left and right ends of the main body limit column; the deceleration unit comprises a fixed frame, a hydraulic press and a friction clamping block, the outer side of the elevator car is fixedly connected with the fixed frame, the inner front end of the fixed frame is fixedly connected with the hydraulic press, and the rear end of the hydraulic press is fixedly connected with the friction clamping block; the sliding deceleration unit is installed on the elevator car; the locking unit is installed on the elevator car, and when the elevator car falls, the friction clamping block is pushed by the hydraulic press inside the fixed frame to decelerate the elevator car through the friction between the friction clamping block and the elevator, so as to prevent the elevator from descending. The elevator with a safety lock can decelerate the elevator, and can decelerate and lock the elevator more effectively.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator with a safety lock. Background Art

[0002] Elevators are widely used in modern buildings, and their safety has always been valued by people. When an elevator encounters an accident such as a broken wire rope or an earthquake, causing the car to fall sharply, it should be able to respond in time and take necessary protective measures before the car reaches the bottom of the shaft to ensure the safety of people in the car;

[0003] Among them, the prior art discloses an elevator with a safety lock with the authorization announcement number CN106241548B, wherein the safety lock comprises a sub-buckle and a mother-buckle which cooperate with each other, the mother-buckle is provided with a locking mechanism for fixing the sub-buckle, the locking mechanism comprises a speed sensor, a gravity locking mechanism, a claw and a claw safety lock, the claw is used to cooperate with the sub-buckle, and when it is closed, it fastens the sub-buckle; when it is opened, it releases the sub-buckle; when the car speed detected by the speed sensor is less than a predetermined value, the claw safety lock locks the claw when it is powered on, and releases the claw when the car speed detected by the speed sensor is greater than a predetermined value; when the claw safety lock is powered off, the claw is automatically released; the gravity locking mechanism is used to open or close the claw according to the current vertical acceleration of the car;

[0004] The prior art cannot decelerate the elevator. When the elevator descends at high speed, it is locked directly without decelerating, which will damage the locking device. The elevator cannot be decelerated and locked more effectively. Therefore, we propose an elevator with a safety lock. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an elevator with a safety lock, which can slow down the elevator, can more effectively slow down and lock the elevator, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator with a safety lock, comprising a main body limit column, a deceleration unit, a sliding deceleration unit and a locking unit;

[0007] Main body limit column: multiple pin holes are opened at the left and right ends;

[0008] The deceleration unit comprises a fixed frame 1, a hydraulic press 1 and a friction clamping block. The outer side of the elevator car is fixedly connected with the fixed frame 1, the inner front end of the fixed frame 1 is fixedly connected with the hydraulic press 1, and the rear end of the hydraulic press 1 is fixedly connected with the friction clamping block;

[0009] Sliding reduction unit: installed on the elevator car;

[0010] Locking unit: installed on the elevator car.

[0011] When the elevator car falls, the hydraulic press inside the fixed frame pushes the friction clamping block to decelerate the elevator car through the friction between the friction clamping block and the elevator, thereby preventing the elevator from falling.

[0012] Furthermore, the sliding deceleration unit comprises a limit bar, a sliding wheel and a rectangular hole, the rear end of the fixed frame 1 is provided with a rectangular hole, the inner side of the rectangular hole is slidably connected to the limit bar, and the sliding wheel is rotatably connected between the two limit bars. The sliding wheel and the limit bar enable the limit function to be performed during operation.

[0013] Furthermore, it also includes a connecting plate, a motor 1 and a bidirectional threaded rod, two limit bars are fixedly connected to the two ends of the connecting plate, the rear end of the fixing frame 1 is fixedly connected to the motor 1, the output shaft of the motor 1 is fixedly connected to one end of the bidirectional threaded rod, and the bidirectional threaded rod is threadedly connected to the two connecting plates. The motor 1 drives the bidirectional threaded rod to rotate, and the two connecting plates are brought closer to each other under the action of the thread, so that the limit bars are brought closer to each other so that the sliding wheel cannot rotate, and at the same time, friction is generated between the main limit columns, thereby slowing down the elevator car.

[0014] Furthermore, the locking unit comprises a second fixing frame, an insert, a mounting plate, a limit plate, a limit slide, a spring and a blocking piece. The outer side of the elevator car is fixedly connected with a second fixing frame, the front and rear ends of the second fixing frame are slidably connected with an insert, the end of the insert is fixedly connected to the mounting plate, the left end of the second fixing frame is fixedly connected to the limit slide, one end of the mounting plate is fixedly connected to the limit plate, the limit plate is slidably connected to the limit slide, the other end of the limit plate is fixedly connected to the blocking piece, and a spring is sleeved on the limit plate between the blocking piece and the limit slide. The spring and the blocking piece make the mounting plates approach each other, so that when the elevator speed decreases, the insert is inserted into the latch hole, thereby preventing the elevator from descending.

[0015] Furthermore, it also includes an electric telescopic rod and a fixing plate, the outer side of the elevator car is fixedly connected with the fixing plate, the left end of the fixing plate is fixedly connected with three electric telescopic rods, and the other end of the electric telescopic rod is slidably connected with the corresponding square hole of the mounting plate. The electric telescopic rod on the fixing plate prevents the insertion bar from being inserted into the latch hole during operation, thereby ensuring the operation and locking of the elevator.

[0016] Furthermore, the elevator car further comprises a speed measuring instrument, which is fixedly connected to the upper end of the outer side of the elevator car, and can sense the falling speed through the speed measuring instrument, thereby triggering the deceleration unit and the locking device.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the elevator with a safety lock has the following advantages:

[0018] 1. The elevator with a safety lock can decelerate the elevator, and the elevator can be decelerated quickly through the deceleration unit, so that the brake locking device can play a better role and brake more safely.

[0019] 2. The elevator with a safety lock can decelerate and lock the elevator more effectively. The braking device can quickly brake the elevator in an interlaced manner to prevent the elevator from falling quickly, and at the same time fix the elevator position to facilitate rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the left side structure of the utility model;

[0022] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] In the figure: 1 main body limit column, 2 latch hole, 3 reduction unit, 31 fixed frame 1, 32 hydraulic press 1, 33 friction clamping block, 4 sliding reduction unit, 41 limit strip, 42 sliding wheel, 43 rectangular hole, 44 connecting plate, 45 motor 1, 46 bidirectional threaded rod, 5 locking unit, 51 fixed frame 2, 52 insertion strip, 53 mounting plate, 54 limit plate, 55 limit sliding column, 56 spring, 57 blocking piece, 58 electric telescopic rod, 59 fixed plate, 6 elevator car, 7 speed measuring instrument. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See also Figure 1-3 , This embodiment provides a technical solution for an elevator with a safety lock: an elevator with a safety lock, comprising a main body limit column 1, a deceleration unit 3, a sliding deceleration unit 4 and a locking unit 5;

[0026] Main body limit column 1: multiple pin holes 2 are opened at the left and right ends;

[0027] The deceleration unit 3 comprises a fixed frame 31, a hydraulic press 32 and a friction coupling block 33. The outer side of the elevator car 6 is fixedly connected with the fixed frame 31, the inner front end of the fixed frame 31 is fixedly connected with the hydraulic press 32, and the rear end of the hydraulic press 32 is fixedly connected with the friction coupling block 33. When the elevator car 6 falls, the friction coupling block 33 is pushed by the hydraulic press 32 inside the fixed frame 31 to decelerate the elevator car 6 through the friction between the friction coupling block 33 and 1, thereby preventing the elevator from descending.

[0028] Sliding deceleration unit 4: installed on the elevator car 6; the sliding deceleration unit 4 comprises a limit bar 41, a sliding wheel 42 and a rectangular hole 43. The rear end of the fixed frame 31 is provided with a rectangular hole 43. The inner side of the rectangular hole 43 is slidably connected to the limit bar 41. The sliding wheel 42 is rotatably connected between the two limit bars 41. The sliding wheel 42 and the limit bar 41 enable the limit function to be performed during operation.

[0029] It also includes a connecting plate 44, a motor 45 and a bidirectional threaded rod 46. Two limit bars 41 are fixedly connected to both ends of the connecting plate 44. The rear end of the fixed frame 31 is fixedly connected to a motor 45. The output shaft of the motor 45 is fixedly connected to one end of the bidirectional threaded rod 46. The bidirectional threaded rod 46 is threadedly connected to the two connecting plates 44. The motor 45 drives the bidirectional threaded rod 46 to rotate, and the two connecting plates 44 are brought closer to each other under the action of the thread, so that the limit bars 41 are brought closer to each other so that the sliding wheel 42 cannot rotate, and at the same time, the friction between the main limit columns 1 is performed, so as to decelerate the elevator car 6.

[0030] Locking unit 5: Installed on the elevator car 6, the locking unit 5 comprises a fixing frame 2 51, an inserting strip 52, a mounting plate 53, a limiting plate 54, a limiting sliding column 55, a spring 56 and a blocking piece 57. The outer side of the elevator car 6 is fixedly connected with a fixing frame 2 51, the front and rear ends of the fixing frame 2 51 are slidably connected with the inserting strip 52, the end of the inserting strip 52 is fixedly connected with the mounting plate 53, the left end of the fixing frame 2 51 is fixedly connected with the limiting sliding column 55, one end of the mounting plate 53 is fixedly connected with the limiting plate 54, the limiting plate 54 is slidably connected with the limiting sliding column 55, the other end of the limiting plate 54 is fixedly connected with the blocking piece 57, and a spring 56 is sleeved on the limiting plate 54 between the blocking piece 57 and the limiting sliding column 55. The spring 56 and the blocking piece 57 make the mounting plates 53 approach each other, so that when the elevator speed decreases, the inserting strip 52 is inserted into the latch hole 2, thereby preventing the elevator from descending.

[0031] It also includes an electric telescopic rod 58 and a fixing plate 59. The fixing plate 59 is fixedly connected to the outside of the elevator car 6. Three electric telescopic rods 58 are fixedly connected to the left end of the fixing plate 59. The other end of the electric telescopic rod 58 is slidably connected to the corresponding square hole of the mounting plate 53. The electric telescopic rod 58 on the fixing plate 59 prevents the insertion strip 52 from being inserted into the latch hole 2 during operation, thereby ensuring the operation and locking of the elevator.

[0032] It also includes a speed measuring instrument 7, and the upper end of the outer side of the elevator car 6 is fixedly connected with the speed measuring instrument 7. The speed measuring instrument 7 can sense the falling speed, thereby triggering the deceleration unit and the locking device.

[0033] The working principle of an elevator with a safety lock provided by the utility model is as follows: when the elevator car 6 falls, the friction block 33 is pushed by the hydraulic press 32 inside the fixed frame 31 to decelerate the elevator car 6 through the friction between the friction block 33 and 1, so as to prevent the elevator from falling. The sliding wheel 42 and the limit bar 41 are used to limit the position during operation. The two-way threaded rod 46 is driven to rotate by the motor 45, and the two connecting plates 44 are brought close to each other under the action of the thread, so that the limit bars 41 are brought close to each other so that the sliding wheel 42 cannot rotate, and at the same time, the friction between the main limit columns 1 is carried out, so as to decelerate the elevator car 6. The mounting plates 53 are brought close to each other by the spring 56 and the blocking sheet 57, so that the insertion bar 52 is inserted into the latch hole 2 when the elevator speed decreases, thereby preventing the elevator from falling. The electric telescopic rod 58 on the fixed plate 59 prevents the insertion bar 52 from being inserted into the latch hole 2 during operation, thereby ensuring the operation and locking of the elevator. The falling speed can be sensed by the speed measuring instrument 7, thereby triggering the deceleration unit and the locking device.

[0034] It is worth noting that the input end of the motor 45 disclosed in the above embodiment is electrically connected to the output end of the external power supply through an external PLC controller, and both motors 45 and 46 use servo motors. The external PLC controller controls the operation of motors 45 and 46 using methods commonly used in the prior art.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An elevator with a safety lock, characterized in that: It comprises a main body limiting column (1), a deceleration unit (3), a sliding deceleration unit (4), a locking unit (5) and an elevator car (6); The main body limit column (1) has a plurality of pin holes (2) at both ends. The deceleration unit (3) comprises a fixed frame (31), a hydraulic press (32) and a friction clamping block (33), wherein the outer side of the elevator car (6) is fixedly connected to the fixed frame (31), the inner front end of the fixed frame (31) is fixedly connected to the hydraulic press (32), and the rear end of the hydraulic press (32) is fixedly connected to the friction clamping block (33); Sliding deceleration unit (4): installed on the elevator car (6); Locking unit (5): installed on the elevator car (6).

2. An elevator with a safety lock according to claim 1, characterized in that: The sliding deceleration unit (4) comprises a limit strip (41), a sliding wheel (42) and a rectangular hole (43); the rear end of the fixed frame (31) is provided with a rectangular hole (43); the inner side of the rectangular hole (43) is slidably connected to the limit strip (41); and the sliding wheel (42) is rotatably connected between the two limit strips (41).

3. An elevator with a safety lock according to claim 2, characterized in that: It also comprises a connecting plate (44), a motor (45) and a bidirectional threaded rod (46); two limit bars (41) are fixedly connected to two ends of the connecting plate (44); the rear end of the fixing frame (31) is fixedly connected to the motor (45); the output shaft of the motor (45) is fixedly connected to one end of the bidirectional threaded rod (46); and the bidirectional threaded rod (46) is threadedly connected to the two connecting plates (44).

4. An elevator with a safety lock according to claim 1, characterized in that: The locking unit (5) comprises a second fixing frame (51), an inserting strip (52), a mounting plate (53), a limiting plate (54), a limiting sliding column (55), a spring (56) and a blocking sheet (57). The outer side of the elevator car (6) is fixedly connected with the second fixing frame (51). The front and rear ends of the second fixing frame (51) are slidably connected with the inserting strip (52). The end of the inserting strip (52) is fixedly connected with the mounting plate (53). The left end of the second fixing frame (51) is fixedly connected with the limiting sliding column (55). One end of the mounting plate (53) is fixedly connected with the limiting plate (54). The limiting plate (54) is slidably connected with the limiting sliding column (55). The other end of the limiting plate (54) is fixedly connected with the blocking sheet (57). A spring (56) is sleeved on the limiting plate (54) between the blocking sheet (57) and the limiting sliding column (55).

5. An elevator with a safety lock according to claim 4, characterized in that: It also comprises an electric telescopic rod (58) and a fixing plate (59), wherein the outer side of the elevator car (6) is fixedly connected with the fixing plate (59), the left end of the fixing plate (59) is fixedly connected with three electric telescopic rods (58), and the other end of the electric telescopic rod (58) is slidably connected with a square hole corresponding to the mounting plate (53).

6. An elevator with a safety lock according to claim 1, characterized in that: It also comprises a speed measuring instrument (7), and the speed measuring instrument (7) is fixedly connected to the upper end of the outer side of the elevator car (6).

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