Compact elevator safety device

Abstract

The utility model belongs to the technical field of elevators, and particularly relates to a compact elevator safety device which comprises an elevator shaft, fixing plates are fixedly installed at the two ends of the elevator shaft, a lift car is arranged in the elevator shaft, and a lifting assembly capable of enabling the lift car to move in the elevator shaft is arranged between the two fixing plates. The elevator further comprises a rescue assembly capable of lifting trapped persons, the rescue assembly is arranged on the fixing plate at the top so that the trapped persons can be separated from the top of the elevator car, the lifting assembly comprises a screw rod, and the screw rod is rotationally connected between the two sets of fixing plates through a bearing; by arranging the rescue assembly capable of lifting the trapped person, the function of enabling the trapped person to be separated from the top of the lift car is achieved, then the person can be lifted to an elevator opening, the trapped person can be conveniently rescued, and safety is improved to a certain degree.

Description

Technical Field

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

[0002] An elevator is a permanent transportation device that serves several specific floors in a building and whose car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or inclined at an angle of less than 15° to the plumb line. Among them, compact elevators are usually used in homes.

[0003] At present, compact elevators may stop due to malfunctions during operation. When the elevator is between two floors, the elevator door faces the elevator shaft, making it difficult to rescue the trapped people, increasing the difficulty of rescue. In addition, when the elevator door is halfway at the elevator entrance, the trapped people may suddenly drop their car while climbing out, posing a safety hazard. Therefore, a compact elevator safety device is invented. Utility Model Content

[0004] In view of the above problems and / or the problems existing in the existing compact elevator safety device, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a compact elevator safety device that can solve the above-mentioned existing problems.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A compact elevator safety device comprises an elevator shaft, fixing plates are fixedly installed at both ends of the elevator shaft, a car is arranged in the elevator shaft, a lifting assembly capable of moving the car in the elevator shaft is arranged between two sets of the fixing plates, and further comprises:

[0008] A rescue component capable of lifting trapped persons, and the rescue component is arranged on a fixed plate at the top, so as to enable the trapped persons to escape from the top of the car.

[0009] As a preferred solution of a compact elevator safety device described in the utility model, the lifting assembly includes:

[0010] A screw rod, the screw rod being rotatably connected between the two sets of fixed plates through a bearing;

[0011] The slider is fixedly mounted on one side of the car and is threadedly connected to the screw rod.

[0012] As a preferred solution of a compact elevator safety device described in the utility model, the lifting assembly further comprises:

[0013] A first box body, wherein the first box body is fixedly mounted on a top fixing plate;

[0014] The first servo motor is fixedly installed in the first box body, and the output shaft of the first servo motor is fixedly installed with a screw.

[0015] As a preferred solution of the compact elevator safety device described in the utility model, a guide rod is fixedly installed between the two groups of fixed plates, and the sliding block is slidably connected to the guide rod.

[0016] As a preferred solution of a compact elevator safety device described in the utility model, the rescue component includes:

[0017] Support plate, support plates are fixedly installed on both sides of the bottom of the fixing plate at the top;

[0018] A rotating shaft, the rotating shaft being rotatably connected to the support plate via a bearing;

[0019] Limiting plates, the limiting plates are fixedly installed on the opposite ends of the two groups of rotating shafts;

[0020] A roller, wherein the roller is fixedly installed between two sets of limiting plates;

[0021] A nylon rope, one end of which is fixedly mounted on a roller, and the nylon rope is wound around the roller.

[0022] As a preferred solution of a compact elevator safety device described in the utility model, the rescue component further comprises:

[0023] A through hole is provided at the top of the car;

[0024] The baffle is inserted into the baffle with interference fit, and a nylon rope is fixedly installed on the top of the baffle.

[0025] As a preferred solution of a compact elevator safety device described in the utility model, the rescue component further comprises:

[0026] A second box body, the second box body is fixedly mounted on a set of support plates;

[0027] The second servo motor is fixedly mounted in the second housing, and the output shaft of the second servo motor is fixedly mounted on the rotating shaft.

[0028] As a preferred solution of the compact elevator safety device described in the utility model, a pull rod is fixedly installed at the bottom of the baffle plate to facilitate the trapped personnel to separate the baffle plate and the through hole.

[0029] Compared with existing technologies:

[0030] By providing a rescue component that can lift the trapped person, it is possible to make the trapped person escape from the top of the car, and then lift the person to the elevator entrance, which not only makes it easier to rescue the trapped person, but also improves safety to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0032] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0033] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0034] Figure 4 It is a side view schematic diagram of the structure of the utility model;

[0035] Figure 5 It is a schematic diagram of the structure of the car of the utility model.

[0036] In the figure: elevator shaft 10, fixed plate 11, car 20, screw 31, slider 32, guide rod 33, first box 34, first servo motor 35, support plate 41, rotating shaft 42, limit plate 43, roller 44, nylon rope 45, through hole 46, baffle 47, pull rod 471, second box 48, second servo motor 49. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] This utility model provides a compact elevator safety device, please refer to Figure 1-Figure 5 , including an elevator shaft 10, with fixed plates 11 fixedly installed at both ends of the elevator shaft 10, a car 20 is arranged in the elevator shaft 10, and a lifting assembly capable of moving the car 20 in the elevator shaft 10 is arranged between the two sets of fixed plates 11;

[0039] The lifting assembly includes: a screw rod 31, a slider 32, a guide rod 33, a first box 34, and a first servo motor 35;

[0040] The screw 31 is rotatably connected between the two sets of fixed plates 11 through a bearing, the outer ring of the bearing is fixed on the fixed plate 11, the inner ring of the bearing fixes the screw 31, the slider 32 is fixedly installed on one side of the car 20, and the slider 32 is threadedly connected to the screw 31, the first box body 34 is fixedly installed on the top fixed plate 11, the first servo motor 35 is fixedly installed in the first box body 34, and the output shaft of the first servo motor 35 is fixedly installed with the screw 31, the output shaft diameter of the first servo motor 35 is less than or equal to the diameter of the screw 31, the guide rod 33 is fixedly installed between the two sets of fixed plates 11, and the slider 32 is slidably connected to the guide rod 33, and the guide rod 33 is provided to prevent the slider 32 from rotating.

[0041] It also includes: a rescue component capable of lifting the trapped person, and the rescue component is arranged on the top fixing plate 11, so as to enable the trapped person to escape from the top of the car 20;

[0042] The rescue assembly includes: a support plate 41, a rotating shaft 42, a limiting plate 43, a roller 44, a nylon rope 45, a through hole 46, a baffle 47, a pull rod 471, a second box 48, and a second servo motor 49;

[0043] The top fixed plate 11 has support plates 41 fixedly installed on both sides of the bottom, and the rotating shaft 42 is rotatably connected to the supporting plate 41 through a bearing. The outer ring of the bearing is fixed on the supporting plate 41, and the inner ring of the bearing fixes the rotating shaft 42. The opposite ends of the two sets of rotating shafts 42 are fixedly installed with limiting plates 43. The limiting plates 43 are provided to limit the position of the nylon rope 45 on the roller 44. The roller 44 is fixedly installed between the two sets of limiting plates 43. One end of the nylon rope 45 is fixedly installed on the roller 44, and the nylon rope 45 is wound around the roller 44. A through hole 46 is opened at the top of the car 20, and a baffle 47 is inserted in the baffle 4 with interference fit. 7, wherein the force of the interference fit can be set according to demand, and a nylon rope 45 is fixedly installed on the top of the baffle 47, a second box body 48 is fixedly installed on a group of support plates 41, a second servo motor 49 is fixedly installed in the second box body 48, an output shaft of the second servo motor 49 is fixedly installed on a rotating shaft 42, and a diameter of the output shaft of the second servo motor 49 is less than or equal to a diameter of the rotating shaft 42, and a pull rod 471 is fixedly installed on the bottom of the baffle 47, so that trapped persons can separate the baffle 47 and the through hole 46, wherein the length of the pull rod 471 can be set according to demand, and in addition, the pull rod 471 can also be replaced with a rope.

[0044] Working principle:

[0045] Step 1: The screw 31 is rotated by the first servo motor 35. When the screw 31 rotates, the car 20 is lifted or lowered under the action of the slider 32. During this process, the rescue component is required to adjust the length of the nylon rope 45 accordingly to prevent the through hole 46 and the baffle 47 from being separated.

[0046] Step 2: When the car 20 stops in the elevator shaft 10 due to a malfunction, the second servo motor 49 is used to drive the shaft 42 to rotate the roller 44 to release the nylon rope 45 on the roller 44. At the same time, the trapped person can pull the baffle 47 downward through the pull rod 471 until the baffle 47 and the through hole 46 are separated. After the baffle 47 is at a suitable height, the trapped person stands on the baffle 47 and holds the nylon rope 45. After that, the shaft 42 is reversed by the second servo motor 49 to lift the trapped person until the trapped person is lifted to a suitable height, so as to rescue the trapped person.

[0047] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A compact elevator safety device, comprising an elevator shaft (10), wherein fixing plates (11) are fixedly installed at both ends of the elevator shaft (10), a car (20) is arranged in the elevator shaft (10), and a lifting assembly capable of moving the car (20) in the elevator shaft (10) is arranged between two sets of the fixing plates (11), wherein: Also includes: A rescue component capable of lifting a trapped person, and the rescue component is arranged on a top fixing plate (11) so as to enable the trapped person to escape from the top of the car (20).

2. A compact elevator safety device according to claim 1, characterized in that: The lifting assembly comprises: A screw rod (31), wherein the screw rod (31) is rotatably connected between the two sets of fixed plates (11) via a bearing; A slider (32) is fixedly mounted on one side of the car (20), and the slider (32) is threadedly connected to the screw rod (31).

3. A compact elevator safety device according to claim 2, characterized in that: The lifting assembly also includes: A first box body (34), wherein the first box body (34) is fixedly mounted on the top fixing plate (11); A first servo motor (35), wherein the first servo motor (35) is fixedly mounted in the first box body (34), and an output shaft of the first servo motor (35) is fixedly mounted on the screw rod (31).

4. A compact elevator safety device according to claim 3, characterized in that: A guide rod (33) is fixedly installed between the two groups of fixed plates (11), and a sliding block (32) is slidably connected to the guide rod (33).

5. A compact elevator safety device according to claim 1, characterized in that: The rescue components include: A support plate (41), the support plates (41) are fixedly mounted on both sides of the bottom of the fixing plate (11) at the top; A rotating shaft (42), wherein the rotating shaft (42) is rotatably connected to the support plate (41) via a bearing; A limiting plate (43), the limiting plates (43) being fixedly mounted on opposite ends of the two groups of rotating shafts (42); A roller (44), wherein the roller (44) is fixedly installed between two sets of limiting plates (43); A nylon rope (45), one end of which is fixedly mounted on a roller (44), and the nylon rope (45) is wound around the roller (44).

6. A compact elevator safety device according to claim 5, characterized in that: The rescue component also includes: A through hole (46), wherein the top of the car (20) is provided with a through hole (46); The baffle (47) is inserted into the baffle (47) with interference fit, and a nylon rope (45) is fixedly installed on the top of the baffle (47).

7. A compact elevator safety device according to claim 6, characterized in that: The rescue component also includes: A second box (48), wherein the second box (48) is fixedly mounted on a set of support plates (41); A second servo motor (49), wherein the second servo motor (49) is fixedly mounted in the second housing (48), and an output shaft of the second servo motor (49) is fixedly mounted on the rotating shaft (42).

8. A compact elevator safety device according to claim 7, characterized in that: A pull rod (471) is fixedly installed at the bottom of the baffle (47) so that the trapped person can separate the baffle (47) and the through hole (46).

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