Elevator balance rescue system and elevator

Abstract

The present invention relates to the technical field of elevators, and provides an elevator balance rescue system and an elevator, which mainly include a locking guide device and a pushing device, wherein a guide plate of the locking guide device is arranged on a frame and located beside a guide rail, a magnetic part is arranged on the guide plate, and an electromagnetic component is arranged between the guide plate and the magnetic part, and the magnetic part can move to abut against the guide rail under the action of the electromagnetic component; the pushing device includes a pushing rod connected to the car. The present invention allows rescuers to destroy the weight balance between the car and the counterweight through electrical control outside the elevator without entering the shaft or the top of the car, thereby improving the rescue speed and simplifying the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator balancing rescue system and an elevator. Background Art

[0002] With the rapid development of the country's economy and urban construction, high-rise buildings have sprung up, and the demand for elevators has also increased rapidly. As one of the current mainstream elevators, machine room-less elevators have an increasing market share. Although elevator technology is improving day by day, making the safety performance of elevators fully guaranteed, elevator failures still occur due to long-term use of elevators and improper operation by users. For machine room-less elevators, the main engine is installed in the shaft. When the elevator fails and people are trapped and need rescue, the trapped people cannot be rescued by turning the car to rescue, especially when the weight of the car and the counterweight is just balanced, and rescue cannot be carried out by releasing the brake and sliding the car.

[0003] Therefore, usually the only way to achieve the purpose of rescue is to add heavy objects on the top of the car or apply external force to destroy the balance state, such as entering the pit to pull the compensation chain, to destroy the balance state between the car and the center weight, so that the car can move. However, these methods are relatively complicated to operate, and rescue personnel need to arrive at the scene and jump into the shaft or reach the top of the car to carry out rescue. There are certain limitations, which affects the rescue efficiency. Summary of the invention

[0004] The object of the present invention is to solve the above technical problems and to provide an elevator balance rescue system and an elevator, so that when the elevator car and the counterweight are in a balanced state, the balance state can be easily and quickly broken, thereby facilitating timely rescue.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An elevator balance rescue system comprises a locking guide device and a pushing device, wherein the locking guide device is arranged on the pushing device and can slide on a guide rail, and the pushing device is arranged between the locking guide device and the car;

[0007] The locking guide device comprises a frame, a guide plate, a magnetic part and an electromagnetic component;

[0008] The guide plate is arranged on the frame and is located beside the guide rail, the magnetic member is arranged on the guide plate and can slide relative to the guide plate, the electromagnetic component is arranged between the guide plate and the magnetic member, and the magnetic member can move to abut against the guide rail under the action of the electromagnetic component;

[0009] The pushing device comprises a pushing rod which is connected to the car.

[0010] Preferably, an elastic reset member is further provided between the guide plate and the magnetic member, a limit plate is provided on the frame, the limit plate is arranged opposite to the guide plate, and the magnetic member is arranged between the guide plate and the limit plate.

[0011] Preferably, the magnetic part comprises a contact portion and a sliding portion, the electromagnetic component is arranged between the guide plate and the contact portion, and the guide plate is provided with a plurality of guide holes for the sliding portion to pass through.

[0012] Preferably, the sliding part includes a first sliding part and a second sliding part which are arranged parallel to each other, and the first sliding part and the second sliding part are arranged along the length direction of the guide rail;

[0013] The elastic reset member is arranged between the first sliding part and the second sliding part, and the electromagnetic component is arranged outside the first sliding part and the second sliding part; or the electromagnetic component is arranged between the first sliding part and the second sliding part, and the elastic reset member is arranged outside the first sliding part and the second sliding part.

[0014] Preferably, the guide plates are symmetrically arranged on both sides of the guide rail.

[0015] Preferably, the pushing device further comprises a housing and a motor, one end of the pushing rod is accommodated in the housing, and the other end is connected to the car, and the motor is arranged on the housing and is transmission-connected to the pushing rod.

[0016] Preferably, an anti-wear shoe lining for guiding during the lifting and lowering of the car is arranged on the side of the guide plate facing the guide rail.

[0017] Preferably, a guide pulley group is further provided on the frame corresponding to the guide rail, and the guide pulley group includes at least two guide wheels, and the wheel surfaces of the guide wheels are in rolling contact with the guide rail.

[0018] Preferably, the guide rail comprises a first guide rail and a second guide rail arranged on different sides of the car, and the locking guide device and the pushing device are arranged on the first guide rail and the second guide rail.

[0019] Another aspect of the present application further discloses an elevator, which includes the elevator balancing rescue system described in the present application.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] By adopting the above scheme, rescuers do not need to enter the shaft or the top of the car. They can destroy the weight balance of the car and counterweight through electrical control outside the elevator, and then rescue can be carried out by releasing the brake and sliding the car, which improves the speed of rescue, reduces the life risk of trapped people, and makes the rescue work of rescuers safer, more reliable and simpler to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of an elevator with an elevator balancing rescue system according to the present invention;

[0023] Figure 2 A schematic diagram of a pushing device of an elevator balance rescue system of the present invention; and

[0024] Figure 3 FIG. 1 is a schematic diagram of a locking guide device of an elevator balance rescue system of the present invention, wherein

[0025] Figure 3 A is a schematic diagram of a preferred embodiment of the locking guide device of the elevator balance rescue system of the present invention,

[0026] Figure 3 B is a schematic diagram of another preferred embodiment of the locking guide device of the elevator balance rescue system of the present invention.

[0027] Reference numerals:

[0028] 1-elevator; 2-guide rail; 21-first guide rail; 22-second guide rail; 3-car; 4-pushing device; 5-locking guide device; 6-motor; 7-housing; 8-pushing rod; 9-frame; 91-limiting plate; 10-guide plate; 101-guide hole; 11 magnetic member; 111-contact part; 112-sliding part; 112a-first sliding part; 112b-second sliding part; 12-electromagnetic member; 13-elastic reset member; 14-anti-wear shoe lining; 15-guide pulley block; 151-first guide wheel; 152-second guide wheel; 16-lower guide shoe; 161-first lower guide shoe; 162-second lower guide shoe. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. The present application can be embodied in many different forms, and those skilled in the art can make some non-essential modifications, improvements and adjustments to the present invention based on the content of the above invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the corresponding positional relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as hints or indicators of relative importance or implicitly indicating the number of technical features shown. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0032] The "pushing end point" in the present invention refers to the maximum pushing position reached by the pushing rod, and the size of this position is determined according to the pushing stroke of the pushing rod.

[0033] The "sliding initial point" in the present invention refers to the position of the magnetic member when the locking device is not electrically controlled.

[0034] Figure 1 An elevator 1 is shown, which includes an elevator balance rescue system and a guide rail 2. The guide rail 2 includes a first guide rail 21 and a second guide rail 22. The elevator balance rescue system can be arranged on the first guide rail 21 or the second guide rail 22 alone, or on the first guide rail 21 and the second guide rail 22 respectively. The elevator balance rescue system includes a pushing device 4 and a locking guide device 5.

[0035] Figure 2 The structure of the pushing device 4 of the elevator balance rescue system is shown. The pushing device 4 includes a motor 6, a housing 7, and a pushing rod 8. One end of the pushing rod is connected to the car 3, and the other end is accommodated in the housing 7. The motor 6 is arranged on the housing 7 and is in transmission connection with the pushing rod 8, so that the car 3 is driven to move through the pushing rod 8 to destroy the balance of the car and the counterweight.

[0036] Figure 3 The structure of the locking guide device 5 of the elevator balance rescue system is shown. The locking guide device 5 includes a frame 9; a guide plate 10, which is arranged on the frame 9 and located beside the guide rail 2; a magnetic member 11, which is arranged on the guide plate 10 and can slide relative to the guide plate 10; and an electromagnetic component 12, which is arranged between the guide plate 10 and the magnetic member 11; the magnetic member 11 can be adsorbed and moved to abut against the guide rail 2 under the action of the electromagnetic component 12.

[0037] In one embodiment, the magnetic member 11 includes a contact portion 111 and a sliding portion 112. The sliding portion 112 includes a first sliding portion 112a and a second sliding portion 112b, and the two sliding portions are arranged in parallel with each other and arranged along the length direction of the guide rail, presenting a π-shaped structure. A plurality of guide holes 101 are provided on the guide plate 10, so that the sliding portion 112 of the magnetic member can move under the adsorption of the electromagnetic component 12, pass through the guide hole 101 and abut against the guide rail 2. Preferably, the magnetic member 11 can be an armature.

[0038] In one example, a limiting plate 91 is disposed on the frame 9 , and the limiting plate 91 is disposed opposite to the guide plate 10 , and a magnetic member 11 is disposed between the guide plate and the limiting plate 91 .

[0039] Figure 3 It is also shown that an elastic reset member 13 is provided between the guide plate 10 and the magnetic member 11 . The elastic reset member is reset when the electromagnetic component 12 is not energized, and the magnetic member 11 abuts against the limit plate 91 .

[0040] In one embodiment, the elastic reset member 13 is disposed between the first sliding portion 112a and the second sliding portion 112b; the electromagnetic component 12 is disposed outside the first sliding portion 112a and the second sliding portion 112b. In addition, the electromagnetic component 12 may also be disposed between the first sliding portion 112a and the second sliding portion 112b, and the elastic reset member 13 may be disposed outside the first sliding portion 112a and the second sliding portion 112b. The electromagnetic component 12 may be an electromagnetic coil, and the elastic reset member 13 may be a spring.

[0041] The guide plate 10 of the present invention can be arranged alone on one side of the guide rail, or symmetrically as shown in FIG. Figure 3 As shown, the locking guide device 5 is arranged on both sides of the guide rail. Both arrangements can allow the locking guide device 5 to easily guide the movement of the car 3 on the guide rail 2 under electrical control.

[0042] Figure 3 A also shows that the locking guide device 5 of the present invention also includes an anti-wear shoe lining 14, which is arranged on the side of the guide plate 10 facing the guide rail. The anti-wear shoe lining 14 is used to reduce the friction between the locking guide device 5 and the guide rail 2, and extend the service life of the locking guide device. The anti-wear shoe lining is generally made of highly wear-resistant plastic, such as highly wear-resistant nylon material and highly wear-resistant polyurethane material. When replacement is required, only the anti-wear shoe lining needs to be disassembled and replaced. When the elevator car is working on the guide rail, since the elevator moves up and down on the guide rail, the anti-wear shoe lining 14 prevents the car from deflecting or swinging during movement, plays a role in guiding the movement, thereby making the sliding between the elevator car and the guide rail more reliable and safe.

[0043] Figure 3B shows that the locking guide device 5 of the present invention also includes a guide pulley group 15, which can replace the role of the anti-wear shoe liner 14. The guide pulley group 15 is arranged on the frame 9 corresponding to the guide rail 2. The guide pulley group 15 includes a first guide wheel 151 and a second guide wheel 152. The first and second guide wheels 151 and 152 are respectively arranged on both sides of the guide rail 2 and the wheel surface is in rolling contact with the guide rail, so as to guide the movement direction of the locking guide device and avoid the friction between the guide plate and the guide rail. In another embodiment, the guide pulley group 15 includes three guide wheels in a "pin" shape (not shown). The three guide wheels can be respectively arranged on the front, left and right sides of the guide rail and are in rolling contact with the guide rail to form a triangular clamping surface, which can prevent the car from deflecting or swinging during movement, and more stably guide the car to move up and down on the guide rail, so that the sliding between the car and the guide rail is safer and more reliable.

[0044] In a preferred example, the locking guide device 5 may include the above-mentioned anti-wear shoe lining 14 and the above-mentioned guide pulley group 15. During the lifting process of the car, the anti-wear shoe lining and the guide pulley group provide the movement between the car and the guide rail with the guiding effect of the anti-wear shoe lining and the guide rail, and the guiding effect of the guide pulley group and the guide rail. Under the dual guiding effect, even if any component of the anti-wear shoe lining and the guide pulley group is not used well during the operation of the car, it will not cause a great impact on the stability of the car movement along the guide rail. Moreover, under the dual guiding effect, the vibration and noise of the elevator can be reduced, providing better elevator comfort.

[0045] The balance rescue system also includes a lower guide shoe 16, such as Figure 1 As shown, the lower guide shoe 16 is arranged between the bottom of the car 3 and the guide rail 2. The lower guide shoe includes a first lower guide shoe 161 and a second lower guide shoe 162, which are respectively arranged on one side of the guide rail 2 and are in sliding contact with the guide rail. The function of the lower guide shoe is similar to that of the guide pulley block, and both can guide the movement of the car.

[0046] The working principle of the elevator balance rescue system of the present invention is as follows:

[0047] When the weight of the car and the counterweight is balanced, the car stops moving. At this time, the rescue personnel control the locking guide device 5 by electrical control outside the shaft. The electromagnetic component 12 generates magnetic attraction. The magnetic member 11 is adsorbed and passes through the guide plate 10 under the action of the electromagnetic component 12 to press against the guide rail 2. At the same time, the elastic reset member 13 is compressed. Then the motor 6 of the pushing device 4 is energized and activated, and the pushing rod 8 is pushed toward the car 3. Since the locking guide device 5 is pressed against the guide rail 2 at this time and the housing 7 of the pushing device is connected to the locking guide device 5, the pushing rod 8 is connected to the car 3. When the pushing rod 8 is pushed out, the car 3 will move in the direction of the pushing direction. When the push reaches the end point, the electromagnetic component 12 of the locking guide device 5 loses power, and the magnetic attraction also disappears, the magnetic part 11 is released, and the magnetic part 11 slides to the initial point of the slide under the reaction force of the elastic reset part 13, completing the locking guide device 5 and no longer pressing against the guide rail 2. Then the motor 6 of the pushing device 4 is powered again. Since the push rod 8 is connected to the car 3, the car 3 is equivalent to a fixed object when the traction main machine is unpowered. At this time, the push rod 8 of the pushing device is also regarded as a fixed part. The housing 7 of the pushing device moves toward the car together with the locking guide device 5 to realize the retraction of the push rod 8 into the housing 7, completing a rescue. If the balance state of the car and the counterweight is destroyed after a rescue is completed, the rescue of the trapped person is realized by releasing the brake and sliding the car; if after a push rescue is implemented, due to the limited pushing stroke of the pushing device, the car is pushed for a distance and still fails to destroy the balance state, then repeat the above process until the balance state of the car and the counterweight is destroyed, and then the rescue of the trapped person is realized by releasing the brake and sliding the car.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes, variations and modifications. Any modification, replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An elevator balance rescue system, characterized in that: It comprises a pushing device (4) and a locking guide device (5), wherein the locking guide device (5) is arranged on the pushing device (4) and can slide on the guide rail (2), and the pushing device (4) is arranged between the locking guide device (5) and the car (3); The locking guide device (5) comprises a frame (9), a guide plate (10), a magnetic member (11) and an electromagnetic component (12); The guide plate (10) is arranged on the frame (9) and is located beside the guide rail (2); the magnetic member (11) is arranged on the guide plate (10) and can slide relative to the guide plate (10); the electromagnetic component (12) is arranged between the guide plate (10) and the magnetic member (11); and the magnetic member (11) can move to abut against the guide rail (2) under the action of the electromagnetic component (12); The pushing device (4) comprises a pushing rod (8), and the pushing rod (8) is connected to the car (3); The pushing device further comprises a motor (6) and a housing (7); one end of the pushing rod (8) is accommodated in the housing (7) and the other end is connected to the car (3); the motor (6) is arranged on the housing (7) and is transmission-connected to the pushing rod (8); An elastic reset member (13) is also arranged between the guide plate (10) and the magnetic member (11); a limit plate (91) is arranged on the frame (9); the limit plate (91) and the guide plate (10) are arranged opposite to each other; and the magnetic member (11) is arranged between the guide plate (10) and the limit plate (91); The magnetic member (11) comprises a contact portion (111) and a sliding portion (112); the electromagnetic member (12) is arranged between the guide plate (10) and the contact portion (111); the guide plate (10) is provided with a plurality of guide holes (101) for the sliding portion (112) to pass through; The sliding part (112) comprises a first sliding part (112a) and a second sliding part (112b) which are arranged in parallel with each other, and the first sliding part (112a) and the second sliding part (112b) are arranged along the length direction of the guide rail (2); The elastic return member (13) is arranged between the first sliding part (112a) and the second sliding part (112b), and the electromagnetic component (12) is arranged outside the first sliding part (112a) and the second sliding part (112b); or, the electromagnetic component (12) is arranged between the first sliding part (112a) and the second sliding part (112b), and the elastic return member (13) is arranged outside the first sliding part (112a) and the second sliding part (112b); When the push rod (8) is pushed out, the car (3) moves in the direction of the push. When the push rod (8) is pushed to the end of the push, the electromagnetic component (12) of the locking guide device (5) loses power, and the magnetic attraction disappears. The magnetic part (11) is released, and under the reaction force of the elastic reset part (13), the magnetic part (11) slides to the initial sliding point. The locking guide device (5) no longer presses against the guide rail (2). Then, the motor (6) of the pushing device (4) is powered on again, and the shell (7) of the pushing device (4) moves together with the locking guide device (5) toward the car to retract the push rod (8) into the shell (7), completing a rescue.

2. The elevator balance rescue system according to any one of claim 1, characterized in that: The guide plates (10) are symmetrically arranged on both sides of the guide rail (2).

3. The elevator balance rescue system according to claim 1, characterized in that: An anti-wear shoe lining (14) for guiding during the lifting process of the car is arranged on the side of the guide plate (10) facing the guide rail (2).

4. The elevator balance rescue system according to claim 1 or 3, characterized in that: The frame (9) is also provided with a guide pulley group (15) corresponding to the guide rail, and the guide pulley group (15) includes at least two guide wheels for guiding during the lifting process of the car, and the wheel surface of the guide wheel is in rolling contact with the guide rail (2).

5. The elevator balance rescue system according to claim 4, characterized in that: The guide rail (2) comprises a first guide rail (21) and a second guide rail (22) arranged on different sides of the car (3), and the locking guide device (5) and the pushing device (4) are both arranged on the first guide rail (21) and the second guide rail (22).

6. An elevator, characterized in that: An elevator balancing rescue system comprising any one of claims 1-5.

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