An emergency stop device for an elevator

Abstract

The utility model relates to the technical field of elevator emergency braking, specifically an emergency stop device for elevators, including an elevator shaft wall and a ladder box, a plurality of blocking baffles are preset on the inner walls on both sides of the elevator shaft wall, a rubber buffer structure is fixedly fitted on the lower end of the ladder box structure, and an elevator braking structure is fixedly arranged on the upper end of the ladder box structure, with the beneficial effects as follows: an emergency stop device for elevators proposed by the utility model is an emergency stop device that can be controlled by a car, a set of emergency braking devices for which the movement of a buffer blocking mechanism is triggered by a speed sensor is added above the upper beam of the elevator car, and a recovery device is provided in the car, when the elevator car falls while riding the elevator, the speed sensor detects that the elevator speed is abnormal and will emergency brake the car to a stop state, thereby serving as a protective measure to prevent the elevator from falling.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator emergency braking, in particular to an emergency stopping device for an elevator. Background Art

[0002] With the rapid development of the economy, elevators have become an indispensable means of transportation in residential areas, shopping malls, hotels, airports, various stations, commercial office buildings and other places. At present, the incidence of elevator accidents is getting higher and higher. Once an accident occurs, it is easy to cause casualties to the people riding the elevator, and the safety performance is not high.

[0003] The existing elevator emergency stop device usually has a retractable sliding block in the car that abuts against the buffer baffle of the elevator shaft wall to brake the elevator. Due to the weight and inertia of the elevator itself, direct hard collision and obstruction often cause secondary injuries to the members in the elevator. At the same time, the current elevator braking device is often difficult to recover after use or often requires manpower to manually recover after use, which to a certain extent increases the subsequent maintenance and repair problems of the elevator emergency brake structure. Utility Model Content

[0004] The purpose of the utility model is to provide an emergency stop device for an elevator to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An emergency stop device for an elevator, suitable for emergency braking during the movement of an elevator, comprises an elevator shaft wall and a ladder box, a plurality of blocking baffles are arranged on the inner walls on both sides of the elevator shaft wall, a rubber buffer structure is fixedly fitted on the lower end of the ladder box, an elevator braking structure is installed on the upper end of the ladder box, and a buffer blocking mechanism is movably connected to the inner side of the elevator braking structure;

[0007] The elevator braking structure includes two groups of brake frames arranged in parallel up and down and two groups of structural vertical plates arranged in parallel left and right, the two ends of the structural vertical plates are respectively fixedly connected to the inner surface of the brake frame, the elevator braking structure includes a driving unit and a release unit, the driving unit is placed inside the parallel structural vertical plates, the release unit is placed inside the brake frame, a fixing plate is fixedly installed at the rear end of the inner side of the structural vertical plate, an electric telescopic device is fixedly installed on the inner top surface of the brake frame, and a limiting slide groove for auxiliary limiting is opened on the inner side of the brake frame;

[0008] The buffer blocking mechanism comprises a buffer unit and an anti-slip blocking unit, and the anti-slip blocking unit is fixedly connected to the bottom end of the buffer unit.

[0009] Preferably, the driving unit includes a driving skateboard and a driving motor. The driving skateboard can move left and right in a sliding groove. The driving motor is fixedly mounted on the inner surface of the fixed plate to facilitate subsequent direct driving of the driving skateboard. The driving skateboard is slidably mounted in a sliding groove opened on the inner wall of the structural vertical plate.

[0010] Preferably, a toothed groove and a limit groove are provided on the driving skateboard, and a driving gear is fixedly connected to the output shaft of the driving motor. The toothed grooves are evenly arranged in a tooth shape at one end of the driving skateboard, and the outer surface of the driving gear meshes and rotates with the outer surface of the toothed groove. The limit groove is embedded in the electric telescopic device in the initial state, so as to prevent the buffer blocking mechanism of the ladder box from accidentally extending to both sides during the movement.

[0011] Preferably, the release unit includes a first spring, an electric telescopic device and a first telescopic cylinder. Under the action of the first spring pressure, the buffer blocking mechanism can be quickly extended to both sides. One end of the first spring is fixedly connected to the inner outer surface of the vertical plate of the structure, and the other end of the first spring is fixedly connected to the inner outer surface of the blocking push plate. The first telescopic cylinder is placed inside the first spring. The first spring is arranged at the end of the driving slide away from the sliding groove and is fixedly connected to one end of the driving slide, so that the mechanism is more compact, reliable and durable.

[0012] Preferably, the buffer unit includes a blocking push plate and a reinforcing rib, the two ends of the reinforcing rib are respectively fixedly connected to the inner surface of the blocking push plate, and the overall connection is a fixed structure to facilitate subsequent emergency braking. The blocking push plate is slidably installed on the limiting slide groove, and one end of the blocking push plate is fixedly connected to the driving slide plate and the end of the first spring away from the sliding groove, which plays a limiting role while the blocking push plate moves.

[0013] Preferably, the anti-skid blocking unit includes a blocking pad, a second spring, a second telescopic cylinder, and an anti-skid pad. The second springs are provided with four groups in total, which are arranged in groups of two on the inner side of one end of the blocking push plate. The combined use of multiple groups of springs can avoid secondary injuries during emergency braking. The second telescopic cylinder is arranged inside the second spring, and one end of the second telescopic cylinder is fixedly connected to the inner surface of the upper end of the blocking push plate. The upper end of the blocking pad is fixedly connected to the lower ends of the second telescopic cylinder and the second spring. Anti-skid pads are evenly arranged on the bottom of the blocking pad, and sliding can be avoided when the anti-skid pad and the blocking baffle are fitted.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model proposes an emergency stop device for an elevator. The device is an emergency stop device that can be controlled by a car. A set of emergency brake devices that are triggered by a speed sensor to move a buffer blocking mechanism is installed above the upper beam of the elevator car, and a one-touch recovery button is provided in the car. When the elevator car falls while riding the elevator, the speed sensor detects that the elevator speed is abnormal and the car will be emergency braked to stop, which is a protective measure for preventing the elevator from falling.

[0016] 2. The utility model is provided with a recovery device in the car, and the drive motor drives the retractable slide plate, so that the buffer blocking mechanisms on both sides can be retracted into the base when needed, thereby reducing the waste of human resources and further improving the integrity and usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the brake structure of the elevator of the utility model;

[0019] Figure 3 This is a front view of the brake structure of the elevator of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the driving slide plate of the utility model;

[0021] Figure 5 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0022] Figure 6 For this utility model Figure 1 A schematic diagram of the enlarged structure at B;

[0023] In the figure: 1. elevator shaft wall; 11. blocking baffle; 2. ladder box; 21. rubber buffer structure; 3. elevator brake structure; 31. brake frame; 32. driving slide plate; 33. first spring; 34. electric telescopic device; 35. limiting slide groove; 36. first telescopic cylinder; 37. sliding groove; 311. structural vertical plate; 312. fixed plate; 321. toothed groove; 322. limiting groove; 323. driving gear; 324. driving motor; 4. buffer blocking mechanism; 41. blocking pad; 42. second spring; 43. second telescopic cylinder; 44. blocking push plate; 45. anti-slip pad; 46. reinforcing ribs. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit 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.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 6 The utility model provides a technical solution: it includes an elevator shaft wall 1 and a ladder box structure 2. A plurality of blocking baffles 11 are arranged on the inner walls on both sides of the elevator shaft wall 1 to block the elevator car in an emergency. A rubber buffer structure 21 is fixedly arranged at the lower end of the ladder box 2 to prevent secondary injuries to the passengers inside when the car falls. An elevator braking structure 3 is installed at the upper end of the ladder box 2. A buffer blocking mechanism 4 is movably connected to the inner side of the elevator braking structure 3. The elevator braking structure 3 includes two groups of brake frames 31 arranged in parallel up and down and two groups of structural vertical plates 311 arranged in parallel left and right. The two ends of the structural vertical plates 311 are fixedly connected to the inner side surfaces of the brake frames 31 respectively. The elevator braking structure 3 includes a driving unit and a releasing unit. The driving unit is arranged inside the parallel structural vertical plates 311, and the releasing unit is arranged inside the brake frame 31. The driving unit is mainly used for the subsequent recovery of the buffer blocking mechanisms on both sides. The work can save manpower and material resources while further improving efficiency. The buffer blocking mechanism 4 includes a buffer unit and an anti-skid blocking unit. The anti-skid blocking unit is fixedly connected to the bottom end of the buffer unit. The anti-skid unit plays an anti-skid fixing role in the braking process of the elevator. The driving unit includes a driving slide 32 and a driving motor 324. The driving motor 324 is fixedly installed on the inner surface of the fixed plate 312. The driving slide 32 is slidably installed in the sliding groove 37 opened on the inner wall of the structural vertical plate 311. By controlling the driving motor 324 to be turned on, its output shaft rotates as the hub of power transmission, thereby providing power output for the rotation of the driving gear driving gear 323. Under the action of the meshing rotational force, the outer surface of the driving gear driving gear 323 is meshed with the outer surface of the toothed groove 321, so that the driving slide 32 drives the buffer blocking mechanism 4 to rotate synchronously, thereby realizing the automatic storage of the buffer blocking mechanism 4.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, a toothed groove 321 and a limit groove 322 are provided on the driving slide 32, and a driving gear 323 is fixedly connected to the output shaft of the driving motor 324. The toothed groove 321 is arranged in a toothed shape at one end of the driving slide 32, and the outer surface of the driving gear 323 meshes and rotates with the outer surface of the toothed groove 321. The limit groove 322 is embedded in the electric telescopic device 34 in the initial state. At this time, the elevator as a whole is in a brake untriggered state. The release unit includes a first spring 33, an electric telescopic device 34 and a first telescopic cylinder 36. One end of the first spring 33 is fixedly connected to the inner outer surface of the structural vertical plate 311 On, and the other end of the first spring 33 is fixedly connected to the inner outer surface of the blocking push plate 44. During braking, the electric telescopic device contracts and releases the driving slide 32, and the driving slide 32 further releases the buffer blocking mechanism 4, so as to achieve the purpose of emergency braking. The other end of the first spring 33 is fixedly connected to the inner outer surface of the blocking push plate 44. Under the pressure of the spring, the buffer blocking mechanism can be popped out more quickly and efficiently when it is released. The first telescopic cylinder 36 is placed inside the first spring 33. The first spring 33 is arranged at one end of the driving slide 32 away from the sliding groove 37 and is fixedly connected to one end of the driving slide 32.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, the buffer unit includes a blocking push plate 44 and a reinforcing rib 46. The two ends of the reinforcing rib 46 are fixedly connected to the inner surface of the blocking push plate 44 respectively. The blocking push plate 44 is slidably installed on the limiting slide groove 35 to ensure that the position during the movement does not exceed the limit requirement. One end of the blocking push plate 44 is fixedly connected to the driving slide plate 32 and the end of the first spring 33 away from the sliding groove 37. The overall structure is more concise while also ensuring the strength required for use. The anti-slip blocking unit includes a blocking pad 41, a second spring 4 2. The second telescopic cylinder 43, the anti-skid pad 45, and the second spring 42 are provided with four groups in total, which are arranged in groups of two on the inner side of one end of the blocking push plate 44. The second telescopic cylinder 43 is arranged inside the second spring 42, and one end of the second telescopic cylinder 43 is fixedly connected to the inner surface of the upper end of the blocking push plate 44. The upper end of the blocking pad 41 is fixedly connected to the second telescopic cylinder 43 and the lower end of the second spring 42. The anti-skid pads 45 are evenly arranged on the bottom of the blocking pad 41. The anti-skid pads 45 can play a role of anti-skid and stabilization when contacting the blocking baffle 11.

[0031] In actual use, in the initial state, the electric telescopic device 34 is in the extended state and clamps the limit groove 322, ensuring that the buffer blocking mechanisms on both sides will not extend outward under normal operating conditions. When the speed sensor detects that the movement speed of the elevator car is abnormal during the operation of the elevator, the electric telescopic device 34 is triggered to retract inward and release the driving slide 32 at the same time. The driving slide 32 quickly extends to both sides under the pressure of the spring 33. When the end of the driving slide 32 touches the structural vertical plate 311, the driving slide 32 stops moving. After being pushed out by the driving slide 32, the buffer blocking mechanism 4 is combined with the blocking baffle 11 fixedly arranged on the elevator shaft wall 1 during the falling process of the car. , and the ladder box 2 is blocked and protected under the buffering action of the buffer blocking mechanism 4. When the buffer blocking mechanisms 4 on both sides need to be stored, it is only necessary to start the recovery device in the ladder box structure 2. At this time, the driving motor 324 is controlled to be turned on, so that its output shaft rotates as the hub of power transmission, thereby providing power output for the rotation of the driving gear 323. Under the action of the meshing rotational force, the outer surface of the driving gear 323 and the outer surface of the toothed groove 321 are meshed with each other, so that the driving slide 32 drives the buffer blocking mechanism 4 to rotate synchronously, and at the same time, the buffer blocking mechanism 4 also drives the slide 32 to move inward to achieve the effect of automatic storage.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency stop device for an elevator, suitable for emergency braking during the movement of the elevator, comprising an elevator shaft wall (1) and an elevator car (2), characterized in that: A plurality of blocking baffles (11) are arranged on the inner walls on both sides of the elevator shaft wall (1); a rubber buffer structure (21) is fixedly arranged at the lower end of the elevator box (2); an elevator braking structure (3) is installed at the upper end of the elevator box (2); and a buffer blocking mechanism (4) is movably connected to the inner side of the elevator braking structure (3); The elevator braking structure (3) comprises two groups of braking frames (31) arranged in parallel up and down and two groups of structural vertical plates (311) arranged in parallel left and right, the two ends of the structural vertical plates (311) are respectively fixedly connected to the inner surface of the braking frame (31), the elevator braking structure (3) comprises a driving unit and a releasing unit, the driving unit is arranged inside the parallel structural vertical plates (311), the releasing unit is arranged inside the braking frame (31), a fixing plate (312) is fixedly installed at the rear end of the inner side of the structural vertical plates (311), an electric telescopic device (34) is fixedly installed on the inner top surface of the braking frame (31), and a limiting slide groove (35) for auxiliary limiting is opened on the inner side of the braking frame (31); The buffer blocking mechanism (4) comprises a buffer unit and an anti-slip blocking unit, and the anti-slip blocking unit is fixedly connected to the bottom end of the buffer unit.

2. An emergency stop device for an elevator according to claim 1, characterized in that: The driving unit comprises a driving slide plate (32) and a driving motor (324); the driving motor (324) is fixedly mounted on the inner surface of the fixing plate (312); and the driving slide plate (32) is slidably mounted in a sliding groove (37) provided on the inner wall of the structural vertical plate (311).

3. An emergency stop device for an elevator according to claim 2, characterized in that: The driving slide plate (32) is provided with a toothed groove (321) and a limiting groove (322); a driving gear (323) is fixedly connected to the output shaft of the driving motor (324); the toothed groove (321) is arranged in a toothed shape at one end of the driving slide plate (32); and the outer surface of the driving gear (323) meshes with the outer surface of the toothed groove (321) for rotation; and the limiting groove (322) is embedded in the electric telescopic device (34) in an initial state.

4. An emergency stop device for an elevator according to claim 1, characterized in that: The release unit includes a first spring (33), an electric telescopic device (34) and a first telescopic cylinder (36), one end of the first spring (33) is fixedly connected to the inner outer surface of the structural vertical plate (311), and the other end of the first spring (33) is fixedly connected to the inner outer surface of the blocking push plate (44), the first telescopic cylinder (36) is placed inside the first spring (33), and the first spring (33) is arranged at one end of the driving slide plate (32) away from the sliding groove (37) and is fixedly connected to one end of the driving slide plate (32).

5. An emergency stop device for an elevator according to claim 1, characterized in that: The buffer unit includes a blocking push plate (44) and a reinforcing rib (46), the two ends of the reinforcing rib (46) are respectively fixedly connected to the inner surface of the blocking push plate (44), the blocking push plate (44) is slidably installed on the limiting sliding groove (35), and one end of the blocking push plate (44) is fixedly connected to the driving slide plate (32) and the end of the first spring (33) away from the sliding groove (37).

6. An emergency stop device for an elevator according to claim 1, characterized in that: The anti-skid blocking unit comprises a blocking pad (41), a second spring (42), a second telescopic cylinder (43), and an anti-skid pad (45). The second spring (42) is provided with four groups, which are arranged in pairs on the inner side of one end of the blocking push plate (44). The second telescopic cylinder (43) is arranged inside the second spring (42), and one end of the second telescopic cylinder (43) is fixedly connected to the inner surface of the upper end of the blocking push plate (44). The upper end of the blocking pad (41) is fixedly connected to the lower end of the second telescopic cylinder (43) and the second spring (42), and the anti-skid pads (45) are evenly arranged on the bottom of the blocking pad (41).

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