Elevator limiting device and elevator

Abstract

The present invention discloses an elevator limiting device and an elevator, wherein the elevator limiting device comprises: a limiting component, which is arranged on the side of the elevator car, comprising a first component and a second component fixedly connected and arranged at an angle, the first component is formed with a first pushing part capable of abutting against the side of the elevator car, and the second component is formed with a second pushing part that abuts against the side of the elevator car when the elevator is running; a trigger component, which is arranged on the wall at the bottom of the elevator shaft; a buffer, which is arranged at the bottom of the elevator shaft, below the limiting component; when the elevator car falls to the bottom of the elevator shaft, the front end of the first component touches the trigger component, so that the limiting component rotates, the first pushing part fits against the side of the elevator car, and the second component is pressed on the buffer. The buffer is arranged below the limiting component to avoid the buffer occupying the space at the bottom of the elevator shaft, which is conducive to space arrangement.

Description

Technical Field

[0001] The invention belongs to the technical field of elevator braking, and relates to an elevator limiting device and an elevator using the elevator limiting device. Background Art

[0002] At present, the design of elevators basically includes an elevator car, an elevator shaft, a pit and an elevator car buffer arranged inside the pit. Among them, the buffer is the final device to provide safety protection for the elevator. It is located directly below the elevator car. When the elevator car exceeds the lowest floor due to accidents such as wire rope breakage during the downward movement of the elevator car, the elevator car is buffered to prevent the elevator car from directly hitting the bottom of the elevator shaft, thereby protecting the safety of passengers.

[0003] However, in the existing elevator, please refer to Figure 1 , it is necessary to design a special bottom space for the buffer. At the same time, the buffer distance and the height of the buffer itself need to be considered, so that the buffer occupies more bottom space, which leads to the use of other spaces being affected by the normal design of the elevator using the existing method. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention provides an elevator limiting device and an elevator using the elevator limiting device, which can reduce the depth of the elevator bottom pit without affecting the use of other spaces on the elevator bottom floor.

[0005] In order to solve the above problems, the present invention provides an elevator limiting device, comprising:

[0006] A limiting component, which is arranged on the side of the elevator car, comprises a first member and a second member which are fixedly connected at an angle, the first member is formed with a first pushing portion which can push against the side of the elevator car, the second member is formed with a second pushing portion which pushes against the side of the elevator car when the elevator is running, and the limiting component can rotate relative to the side of the elevator car through the connection between the first member and the second member;

[0007] A trigger component, which is arranged on the shaft wall at the bottom of the elevator shaft, and the distance between the end of the trigger component close to one end of the elevator car and the side of the elevator car is less than the length of the first component;

[0008] A buffer, which is arranged at the bottom of the elevator shaft and below the limiting component;

[0009] Among them, when the elevator car falls to the bottom of the elevator shaft, the front end of the first component touches the trigger component and is subjected to force, causing the limiting component to rotate, so that the first pushing portion fits against the side of the elevator car and the second component is pressed against the buffer.

[0010] In some embodiments of the present invention, a safety distance exists between the trigger component and the top end surface of the buffer, and the safety distance is greater than the length of the second member.

[0011] In some embodiments of the present invention, a guide block is provided at the front end of the second member so that when the front end of the second member abuts against the upper end surface of the buffer, the second member rotates toward the trigger component.

[0012] In some embodiments of the present invention, at least a portion of the first pushing portion is made of magnetic material, and a first magnet for attracting the first pushing portion is provided on the side of the elevator car at a first position capable of contacting the first pushing portion.

[0013] In some embodiments of the present invention, the first magnet is an electromagnet and is electrically connected to a first trigger switch arranged on the side of the elevator car, wherein the first trigger switch is triggered when the first component moves toward the side of the elevator car and the angle between the first component and the side of the elevator car is less than a first angle.

[0014] In some embodiments of the present invention, at least a portion of the second pushing portion is made of magnetic material, and a second magnet for attracting the second pushing portion is provided on the side of the elevator car at a second position capable of contacting the second pushing portion.

[0015] In some embodiments of the present invention, the second magnet is an electromagnet and is electrically connected to a second trigger switch arranged on the side of the elevator car, wherein the second trigger switch is triggered when the second component moves toward the side of the elevator car and the angle between the second component and the side of the elevator car is less than a second angle.

[0016] In some embodiments of the present invention, the trigger component is provided with a first elastic block at a position capable of contacting the first member, and is provided with a second elastic block at a position capable of contacting the second member.

[0017] In some embodiments of the present invention, a reinforcing rib is provided between the first component and the second component.

[0018] An embodiment of the present invention further provides an elevator, comprising:

[0019] Elevator car;

[0020] A driving mechanism for driving the elevator car;

[0021] As described above, the elevator limiting device, the limiting component of the elevator limiting device is arranged on the side of the elevator car, the triggering component of the elevator limiting device is arranged on the side wall at the bottom of the elevator shaft of the elevator, the buffer of the elevator limiting device is arranged at the bottom of the elevator shaft of the elevator, and the elevator limiting device is used to buffer the elevator car.

[0022] Compared with the prior art, the elevator limiting device and the elevator provided by the embodiment of the present invention have the beneficial effect that: by arranging the limiting component on the side of the elevator car and combining the trigger component arranged on the shaft wall at the bottom of the elevator shaft, the buffer can be arranged at the position corresponding to the limiting component at the bottom of the elevator shaft, that is, below the limiting component, thereby avoiding the buffer from further occupying the space at the bottom of the elevator shaft, and at the same time reducing the influence of setting a special space at the bottom to place the buffer on the normal use of other spaces, especially on a ship, when the next layer of space at the bottom of the elevator needs to be used normally, it is avoided that the next layer of space on the ship cannot be designed as a conventional cabin due to the excessive depth of the pit of the elevator shaft. That is, the above-mentioned elevator limiting device saves the bottom space of the elevator shaft, so that the lower layer height of the bottom layer of the elevator shaft can be guaranteed at a conventional height, which is conducive to space layout. In addition, it can also adjust the buffer distance of the elevator car by changing the installation position of the limiting component and the trigger component, avoiding the situation in the prior art where it is difficult to change the buffer distance due to the fixed setting of the pit depth of the elevator shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of an elevator limit device in the prior art

[0024] Figure 2 It is a structural schematic diagram of an elevator limiting device according to an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the structure of a limiting component of an elevator limiting device according to an embodiment of the present invention;

[0026] Figure 4 Another structural schematic diagram of the limiting component of the elevator limiting device according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. a limiting component; 11. a first member; 111. a first pushing portion;

[0029] 12. second member; 121. second abutting portion; 2. triggering component;

[0030] 21. first elastic block; 22. second elastic block; 3. buffer;

[0031] 4. Elevator car. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0034] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0035] It should also be understood that, although the present application has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0036] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0037] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to determine the true intent based on the user's historical operations and to avoid unnecessary or redundant details that make the present application unclear. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but are merely used as the basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0038] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0039] The embodiment of the present invention provides an elevator limit device, such as Figures 2 to 4As shown, it includes: a limiting component 1, a trigger component 2 and a buffer 3, the limiting component 1 is arranged on the side of the elevator car 4, and includes a first component 11 and a second component 12 fixedly connected at an angle, the first component 11 is formed with a first push portion 111 that can be pushed against the side of the elevator car 4, and the second component 12 is formed with a second push portion 121 that pushes against the side of the elevator car 4 when the elevator is running, and the limiting component 1 can rotate relative to the side of the elevator car 4 through the connection between the first component 11 and the second component 12; the trigger component 2 Arranged on the shaft wall at the bottom of the elevator shaft, the distance between the end of the trigger component 2 close to the elevator car 4 and the side of the elevator car 4 is less than the length of the first component 11; the buffer 3 is arranged at the bottom of the elevator shaft and below the limiting component 1; wherein, when the elevator car 4 falls to the bottom of the elevator shaft, the front end of the first component 11 touches the trigger component 2 and is subjected to force, so that the limiting component 1 rotates, so that the first pushing portion 111 is in contact with the side of the elevator car 4, and the second component 12 is pressed on the buffer 3.

[0040] It can be seen from the above-mentioned elevator limiting device that, by setting a limiting component 1 on the side of the elevator car 4 and combining with the trigger component 2 set on the shaft wall at the bottom of the elevator shaft, it can set the buffer 3 at the position corresponding to the limiting component 1 at the bottom of the elevator shaft, that is, below the limiting component 1, thereby avoiding the buffer 3 from further occupying the space at the bottom of the elevator shaft, and also reducing the influence of setting a special space at the bottom to place the buffer 3 on the normal use of other spaces, especially on a ship, when the next layer of the elevator bottom needs to be used normally, it is avoided that the next layer of the ship cannot be designed as a conventional cabin due to the excessive depth of the pit of the elevator shaft. That is, the above-mentioned elevator limiting device saves the bottom space of the elevator shaft, so that the lower layer height of the bottom layer of the elevator shaft can be guaranteed at a conventional height, which is conducive to space layout. In addition, it can also adjust the buffer distance of the elevator car 4 by changing the installation position of the limiting component 1 and the trigger component 2, avoiding the situation in the prior art where it is difficult to change the buffer distance due to the fixed setting of the pit depth of the elevator shaft.

[0041] In order to ensure that the second member 12 can be pressed on the buffer 3 after the front end of the first member 11 touches the trigger component 2 and is subjected to force, in some embodiments of the present invention, such as Figure 2 As shown, there is a safety distance between the trigger component 2 and the top surface of the buffer 3 , and the safety distance is greater than the length of the second component 12 , thereby ensuring that the second component 12 is not blocked by the buffer 3 .

[0042] Specifically, in order to enable the front end of the second member 12 to be rotated from one end of the buffer 3 close to the elevator car 4 to the other side of the buffer 3 after the second member 12 rotates relative to the side of the elevator car 4, in the present embodiment, a guide block is provided at the front end of the second member 12, so that when the second member 12 rotates, if the front end of the second member 12 can abut against the upper end surface of the buffer 3, then as the elevator car 4 further descends, the buffer 3 can push against the guide block provided at the front end of the second member 12, so that the second member 12 rotates toward the side of the trigger component 2.

[0043] In some embodiments of the present invention, at least a portion of the first pushing portion 111 is made of magnetic material, and a first magnet for attracting the first pushing portion 111 is provided on the side of the elevator car 4 at a first position that can contact the first pushing portion 111. When the elevator car 4 falls, the front end of the first component 11 touches the trigger component 2 and is subjected to force, so that the limiting component 1 rotates, and the first pushing portion 111 moves toward the side of the elevator car 4. The first magnet can attract the first pushing portion 111, so that the first pushing portion 111 can be stably fitted with the side of the elevator car 4, thereby ensuring that the second component 12 can rotate at a sufficient angle relative to the side of the elevator car 4, so that the second component 12 can be pressed on the buffer 3 to buffer the elevator car 4.

[0044] In the present embodiment, in order to enable the first magnet to generate suction to the first pushing portion 111 more accurately and effectively, the first magnet can be an electromagnet and is electrically connected to a first trigger switch arranged on the side of the elevator car 4, wherein the first trigger switch is triggered when the first component 11 moves toward the side of the elevator car 4 and the angle between the first component 11 and the side of the elevator car 4 is less than a first angle. Specifically, after the first component 11 touches the trigger component 2, it will rotate toward the side of the elevator car 4 under the action of the trigger component 2, and finally adhere to the side of the elevator car 4, and when it moves toward the elevator When the side of the car 4 rotates, if the angle formed between it and the side of the elevator car 4 is 40 degrees, the first trigger switch is triggered. At this time, the first magnet is energized to generate magnetic force, and generates suction on the first push portion 111, and attracts the first member 11 to fit the side of the elevator car 4. Of course, the first angle can also be set to 45 degrees, 50 degrees, 60 degrees or 30 degrees, etc., which can be set according to actual use needs. In addition, the first trigger switch can be set at a position with a certain distance from the connection between the first member 11 and the second member 12 to ensure that the first trigger switch can be easily triggered.

[0045] In some embodiments of the present invention, at least a portion of the second push portion 121 is made of magnetic material, and a second magnet for attracting the second push portion 121 is provided on the side of the elevator car 4 at a second position that can contact the second push portion 121, so that when the elevator car 4 is normally ascending or descending, the second member 12 can be attached to the side of the elevator car 4 under the action of the suction force of the second magnet. Of course, after the elevator car 4 falls and is repaired, the front end of the second member 12 will touch the trigger component during the process of the elevator car 4 rising. 2, and then under the action of the trigger component 2, the limiting component 1 is rotated, so that the second pushing portion 121 moves toward the side of the elevator car 4. At this time, the attraction of the second magnet to the second pushing portion 121 can ensure that the second pushing portion 121 can stably fit with the side of the elevator car 4, thereby ensuring that the first component 11 can rotate at a sufficient angle relative to the side of the elevator car 4, so that the first component 11 can return to the position where the elevator is normally operating, so that the elevator resumes normal operation.

[0046] In the present embodiment, in order to enable the second magnet to generate suction to the second pushing portion 121 more accurately and effectively, the second magnet may also be an electromagnet, and is electrically connected to a second trigger switch arranged on the side of the elevator car 4, wherein the second trigger switch is triggered when the second member 12 moves toward the side of the elevator car 4 and the angle between the second member 12 and the side of the elevator car 4 is less than a second angle. Specifically, after the second member 12 touches the trigger component 2, it will also rotate toward the side of the elevator car 4 under the action of the trigger component 2, and finally adhere to the side of the elevator car 4 to restore its state during normal operation of the elevator, and when it When it rotates toward the side of the elevator car 4, if the angle formed between it and the side of the elevator car 4 is 45 degrees, the second trigger switch is triggered. At this time, the second magnet is energized to generate magnetic force, and generates suction on the second push-button portion 121, and attracts the second member 12 to fit the side of the elevator car 4. Of course, the second angle can also be set to 50 degrees, 60 degrees or 70 degrees, etc., which can be set according to actual use needs, and the second angle is not less than the first angle. In addition, the second trigger switch can be set at a position with a certain distance from the connection between the first member 11 and the second member 12 to ensure that the second trigger switch can be easily triggered.

[0047] In some embodiments of the present invention, Figure 2 As shown, the trigger component 2 is provided with a first elastic block 21 at a position where it can contact the first member 11, so that when the first member 11 touches the trigger component 2, the noise and impact force generated by the touch can be reduced. Similarly, the trigger component 2 is provided with a second elastic block 22 at a position where it can contact the second member 12, so that when the second member 12 touches the trigger component 2, the noise and impact force generated by the touch can be reduced. Of course, elastic blocks that can reduce noise and impact force can also be set at the position where the first member 11 can touch the trigger component 2 and / or the position where the second member 12 can touch the trigger component 2.

[0048] In some embodiments of the present invention, Figure 4 As shown, in order to ensure a relatively stable connection strength between the first component 11 and the second component 12, reinforcing ribs are provided between the first component 11 and the second component 12, so that when the first component 11 touches the trigger component 2 or the second component 12 touches the trigger component 2, the stability of the connection between the first component 11 and the second component 12 and the firmness of the overall structure are ensured.

[0049] The embodiment of the present invention further provides an elevator, such as Figure 2 As shown, it includes: an elevator car 4; a driving mechanism for driving the elevator car 4; and the elevator limiting device as described above, wherein the limiting component 1 of the elevator limiting device is arranged on the side of the elevator car 4, the triggering component 2 of the elevator limiting device is arranged on the side wall at the bottom of the elevator shaft of the elevator, the buffer 3 of the elevator limiting device is arranged at the bottom of the elevator shaft of the elevator, and the elevator limiting device is used to buffer the elevator car 4, wherein, when the lateral interface of the elevator car 4 is rectangular, the electric limiting device can be respectively arranged at the corresponding positions of the two opposite sides of the elevator car 4, or correspondingly arranged on the four sides of the elevator car 4; if the cross-section of the elevator car 4 is circular, the elevator limiting device can be evenly distributed on the side of the elevator car 4. Of course, in actual use, it can be set according to actual use needs to ensure good buffering of the elevator car 4. Of course, the above-mentioned elevator adopts the above-mentioned elevator limiting device, which has all the effective effects of the above-mentioned elevator limiting device, that is, it adopts to set the buffer 3 at the position corresponding to the limiting component 1 at the bottom of the elevator shaft, that is, below the limiting component 1, thereby avoiding the buffer 3 from further occupying the space at the bottom of the elevator shaft, and at the same time reducing the influence of setting a special space at the bottom to place the buffer 3 on the normal use of other spaces, especially on a ship, when the next layer of space on the bottom of the elevator needs to be used normally, it is avoided that the depth of the pit of the elevator shaft is too large, which affects the situation that the next layer of space on the ship cannot be designed as a conventional cabin. That is, the above-mentioned elevator saves the bottom space of the elevator shaft, so that the lower floor height of the bottom floor of the elevator shaft can be guaranteed at a conventional height, which is conducive to space layout. In addition, it can also adjust the buffer distance of the elevator car 4 by changing the installation position of the limiting component 1 and the trigger component 2, avoiding the situation in the prior art where it is difficult to change the buffer distance due to the fixed setting of the pit depth of the elevator shaft.

[0050] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An elevator limit device, characterized in that: include: A limiting component, which is arranged on the side of the elevator car, comprises a first member and a second member which are fixedly connected at an angle, the first member is formed with a first pushing portion which can push against the side of the elevator car, the second member is formed with a second pushing portion which pushes against the side of the elevator car when the elevator is running, and the limiting component can rotate relative to the side of the elevator car through the connection between the first member and the second member; A trigger component, which is arranged on the shaft wall at the bottom of the elevator shaft, and the distance between the end of the trigger component close to one end of the elevator car and the side of the elevator car is less than the length of the first component; A buffer, which is arranged at the bottom of the elevator shaft and below the limiting component; When the elevator car falls to the bottom of the elevator shaft, the front end of the first member touches the trigger component and is subjected to force, so that the limiting component rotates, so that the first push portion fits the side of the elevator car, and the second member is pressed on the buffer; A safety distance is provided between the trigger component and the top end surface of the buffer, and the safety distance is greater than the length of the second component. A reinforcing rib is provided between the first component and the second component.

2. The elevator limiting device according to claim 1, characterized in that: A guide block is provided at the front end of the second component, so that when the front end of the second component abuts against the upper end surface of the buffer, the second component is rotated toward the trigger component.

3. The elevator limiting device according to claim 1, characterized in that: At least a portion of the first pushing portion is made of magnetic material, and a first magnet for attracting the first pushing portion is provided on the side surface of the elevator car at a first position capable of contacting the first pushing portion.

4. The elevator limiting device according to claim 3, characterized in that: The first magnet is an electromagnet and is electrically connected to a first trigger switch arranged on the side of the elevator car, wherein the first trigger switch is triggered when the first component moves toward the side of the elevator car and the angle between the first component and the side of the elevator car is less than a first angle.

5. The elevator limiting device according to claim 1, characterized in that: At least a portion of the second pushing portion is made of magnetic material, and a second magnet for attracting the second pushing portion is provided on the side surface of the elevator car at a second position capable of contacting the second pushing portion.

6. The elevator limiting device according to claim 5, characterized in that: The second magnet is an electromagnet and is electrically connected to a second trigger switch arranged on the side of the elevator car, wherein the second trigger switch is triggered when the second component moves toward the side of the elevator car and the angle between the second component and the side of the elevator car is less than a second angle.

7. The elevator limiting device according to claim 1, characterized in that: The trigger component is provided with a first elastic block at a position capable of contacting the first member, and is provided with a second elastic block at a position capable of contacting the second member.

8. An elevator, characterized in that: include: Elevator car; A driving mechanism for driving the elevator car; The elevator limiting device as described in any one of claims 1 to 7, wherein the limiting component of the elevator limiting device is arranged on the side of the elevator car, the triggering component of the elevator limiting device is arranged on the side wall at the bottom of the elevator shaft of the elevator, the buffer of the elevator limiting device is arranged at the bottom of the elevator shaft of the elevator, and the elevator limiting device is used to buffer the elevator car.

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