Anti-sinking device

Abstract

The utility model discloses an anti-sinking device which comprises a movable arm and a clamping seat, the movable arm is arranged on a lift car, and the movable arm is provided with a limiting part; the clamping base is arranged on the inner side wall of a well, a supporting part protruding and extending towards the direction of the movable arm is arranged on the side, facing the movable arm, of the clamping base, and the movable arm can swing towards the clamping base so that the limiting part can abut against the upper end of the supporting part. According to the utility model, through the matching between the limiting part on the movable arm and the supporting part on the clamping seat, the lift car is limited, the situation that the lift car sinks when the lift car stops is prevented, the whole structure is simple and stable, the safety is high, the production, the disassembly, the assembly and the maintenance are convenient, and the working efficiency of workers can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and particularly relates to a sinking prevention device. Background Art

[0002] Regardless of whether it is a high-rise or low-rise building, the addition of an elevator can reduce the distance of walking up the stairs, reduce physical exertion, and when carrying items with a certain weight, it can greatly reduce the use of force. However, when the elevator hovers and transports items into the car, the problem of sudden sinking of the car is likely to occur. Therefore, a sinking prevention device is set to prevent the car from sinking. However, the existing sinking prevention devices have the problems of relatively complex structures, being not conducive to production, and being inconvenient for disassembly, installation and maintenance. Content of the Utility Model

[0003] The purpose of the utility model is to provide a sinking prevention device that can solve the above problems.

[0004] To achieve the above purpose, a sinking prevention device provided by an embodiment of the utility model includes:

[0005] A movable arm, which is arranged on the car, and the movable arm is provided with a limiting part; and

[0006] A clamping seat, which is arranged on the inner side wall of the hoistway. A supporting part protruding towards the movable arm is arranged on the side of the clamping seat facing the movable arm. The movable arm can swing towards the clamping seat, so that the limiting part abuts against the upper end of the supporting part.

[0007] Optionally, the upper end of the supporting part and the lower end of the limiting part are both horizontally arranged.

[0008] Optionally, a guiding part is arranged on the side of the supporting part facing the movable arm, and a matching part corresponding to the guiding part is arranged on the limiting part. When the car drives the movable arm to move upward from below the clamping seat, the guiding part can squeeze the matching part, so that the movable arm swings away from the clamping seat.

[0009] Optionally, the guiding part is an inclined surface that is inclined upward.

[0010] Optionally, it further includes a shielding arm, which is arranged on the side of the clamping seat facing the movable arm and is inclined downward. The upper end of the shielding arm is rotatably connected to the clamping seat, and the lower end abuts against the side of the upper end of the supporting part away from the clamping seat;

[0011] When the car drives the movable arm to move downward from above the clamping seat, the shielding arm can squeeze the limiting part, so that the limiting part swings away from the clamping seat.

[0012] Optionally, a jacking arm corresponding to the shielding arm is provided on the limiting portion, and a hollow opening penetrating through the upper and lower ends of the supporting portion and corresponding to the jacking arm is provided on the supporting portion. When the car drives the movable arm to move upward from below the card seat, the jacking arm can pass through the hollow opening to jack up the jacking arm upward, so that the limiting portion can abut against the upper end of the supporting portion.

[0013] Optionally, a driving member is further included, and the driving member can drive the movable arm to swing towards the card seat.

[0014] Optionally, the driving member is a spring.

[0015] Optionally, a mounting seat is further included. The mounting seat is arranged on the car. A groove is provided on one side of the mounting seat facing the card seat. The upper and lower ends of the groove are open. The movable arm is arranged in the groove, and its lower end is rotatably connected to the groove. When the card seat corresponds to the movable arm, the card seat extends into the groove.

[0016] Optionally, an arc-shaped hole is provided on the inner side wall of the groove, and a limiting post extending into the arc-shaped hole is provided on the limiting portion.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the cooperation between the limiting portion on the movable arm and the supporting portion on the card seat, the car is limited, preventing it from sinking when docking. The overall structure is simple and stable, with high safety, and is convenient for production, disassembly, assembly, and maintenance, which can improve the work efficiency of the staff. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a top view of the present utility model.

[0020] Figure 2 It is a Figure 1 sectional view taken along line A-A in

[0021] Figure 3 It is a perspective view of the movable arm in the present utility model.

[0022] Figure 4 It is a perspective view of the connection between the mounting seat and the movable arm in the present utility model.

[0023] In the figure:

[0024] 100. Movable arm; 110. Limiting part; 111. Fitting part; 112. Limiting column; 120. Lifting arm;

[0025] 200. Card seat; 210. Support part; 211. Guiding part; 212. Hollow opening;

[0026] 300. Shielding arm;

[0027] 400. Driving part;

[0028] 500. Mounting seat; 510. Groove; 511. Arc-shaped hole. Detailed implementation mode

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as a limitation of the present invention.

[0030] In the description of the embodiments of the present invention, it should be understood that if there are directional indications involved in the embodiments of the present invention, such as upper, lower, left, right, front, back, inner, outer, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0032] In the embodiments of the present invention, unless otherwise clearly specified and limited, if there are terms such as "installation", "connection", "connection", "fixation", etc., they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0033] As shown Figures 1 to 4 in the figure, an embodiment of the present utility model provides an anti-sinking device, which includes a movable arm 100, a clamping seat 200, a shielding arm 300, a driving member 400 and a mounting seat 500. Among them, the movable arm 100 is arranged on a car (not shown in the figure), and the clamping seat 200 is arranged on the inner side wall of a hoistway (not shown in the figure). Specifically, the clamping seat 200 is arranged at a position of the hoistway close to the elevator entrance. More specifically, the mounting seat 500 is arranged on the car. A groove 510 is arranged on one side of the mounting seat 500 facing the clamping seat 200. The upper and lower ends of the groove 510 are open. Further, the movable arm 100 is arranged in the groove 510, and its lower end is rotatably connected to the groove 510 through a rotating shaft. It should be understood that when the clamping seat 200 corresponds to the movable arm 100, the clamping seat 200 extends into the groove 510 to cooperate with the movable arm 100, and the structure is more compact and stable.

[0034] Further, the movable arm 100 is provided with a limiting portion 110, and a supporting portion 210 protruding towards the movable arm 100 is arranged on one side of the clamping seat 200 facing the movable arm 100. When the car stops at the elevator landing door, the movable arm 100 can swing towards the clamping seat 200, so that the limiting portion 110 abuts against the upper end of the supporting portion 210, thereby limiting the car and preventing it from sinking when docking. The overall structure is simple and stable, with high safety, and is convenient for production, disassembly, installation and maintenance, and can improve the work efficiency of staff.

[0035] In one embodiment, the upper end of the supporting portion 210 and the lower end of the limiting portion 110 are both horizontally arranged, so as to ensure that when the limiting portion 110 abuts against the upper end of the supporting portion 210, the car can be in a horizontal state and avoid the problem of the car tilting.

[0036] In one embodiment, a guiding portion 211 is arranged on one side of the supporting portion 210 facing the movable arm 100, and a cooperating portion 111 corresponding to the guiding portion 211 is arranged on the limiting portion 110. When the car drives the movable arm 100 to move upward from below the clamping seat 200, the guiding portion 211 can squeeze the cooperating portion 111, so that the limiting portion 110 swings away from the clamping seat 200, that is, the limiting portion 110 moves from the lower end of the supporting portion 210 to the upper end of the supporting portion 210 through the cooperating portion 111 for limiting. Specifically, the guiding portion 211 is an inclined surface arranged upward. More specifically, this inclined surface is arranged upward from the lower end of the supporting portion 210. More specifically, this inclined surface can be in a straight line shape or an arc shape, etc.

[0037] In one embodiment, the shielding arm 300 is disposed on the side of the card seat 200 facing the movable arm 100 and is inclined downward. The upper end of the shielding arm 300 is rotatably connected to the card seat 200, and the lower end abuts against the side of the upper end of the support portion 210 away from the card seat 200. When the car drives the movable arm 100 to move downward from above the card seat 200, the shielding arm 300 can squeeze the limiting portion 110 so that the movable arm 100 swings away from the card seat 200 to prevent the limiting portion 110 from abutting against the upper end of the support portion 210, so that the car can move smoothly downward in the hoistway. The design is reasonable, the production cost is low, and the assembly is convenient.

[0038] In one embodiment, a jacking arm 120 corresponding to the shielding arm 300 is provided on the limiting portion 110, and a hollow opening 212 penetrating through the upper and lower ends thereof and corresponding to the jacking arm 120 is provided on the support portion 210. When the car drives the movable arm 100 to move upward from below the card seat 200, the jacking arm 120 can pass through the hollow opening 212 to jack up the jacking arm 120 upward so that the limiting portion 110 can abut against the upper end of the support portion 210. The design is reasonable and the use is stable. It should be understood that when the car ascends, the limiting portion 110 can be separated from the card seat 200 by squeezing the side of the shielding arm 300 facing the card seat 200.

[0039] In one embodiment, in order to enable the movable arm 100 to swing, a driving member 400 is further installed. The driving member 400 can drive the movable arm 100 to swing toward the card seat 200. Specifically, the driving member 400 is preferably a spring.

[0040] In one embodiment, an arc-shaped hole 511 is provided on the inner side wall of the groove 510, and a limiting post 112 extending into the arc-shaped hole 511 is provided on the limiting portion 110 to control the swinging range of the movable arm 100 and improve the stability of the movable arm 100. It should be understood that one end of the driving member 400 is hung on the limiting post 112 and the other end is hung on the mounting seat 500.

[0041] It should be understood that the long side of the card seat 200 forms a bent wall (not shown in the figure) facing the mounting seat through bending, and the support portion 210 is formed by cutting the bent wall. The upper end of the shielding arm 300 is rotatably connected to the bent wall through a rotating shaft, and the production cost is low. Of course, the card seat 200, the support portion 210, the guiding portion 211, and the hollow opening 212 can also be integrally formed.

[0042] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-sinking device, characterized in that: include: A movable arm (100), the movable arm (100) being arranged on the car, the movable arm (100) being provided with a limiting portion (110); and A holder (200) is provided on the inner wall of the well, and a support portion (210) protruding toward the movable arm (100) is provided on the side of the holder (200) facing the movable arm (100), and the movable arm (100) can swing toward the holder (200) so that the limiting portion (110) abuts against the upper end of the support portion (210).

2. The anti-sinking device according to claim 1, characterized in that: The upper end of the support portion (210) and the lower end of the limiting portion (110) are both arranged horizontally.

3. The anti-sinking device according to claim 1, characterized in that: A guide portion (211) is provided on the side of the support portion (210) facing the movable arm (100), and a matching portion (111) corresponding to the guide portion (211) is provided on the limiting portion (110); when the elevator car drives the movable arm (100) to move upward from the bottom of the card seat (200), the guide portion (211) can press the matching portion (111) to make the limiting portion (110) swing in a direction away from the card seat (200).

4. The anti-sinking device according to claim 3, characterized in that: The guide portion (211) is an inclined surface arranged to be inclined upward.

5. The anti-sinking device according to claim 1, characterized in that: Also includes: a shielding arm (300), the shielding arm (300) being arranged on a side of the card holder (200) facing the movable arm (100) and being arranged to be tilted downward, the upper end of the shielding arm (300) being rotatably connected to the card holder (200), and the lower end being against a side of the upper end of the support portion (210) away from the card holder (200); When the car drives the movable arm (100) to move downward from above the card seat (200), the shielding arm (300) can press the limiting portion (110) to make the movable arm (100) swing in a direction away from the card seat (200).

6. The anti-sinking device according to claim 5, characterized in that: The limiting portion (110) is provided with a lifting arm (120) corresponding to the shielding arm (300), and the supporting portion (210) is provided with a hollow opening (212) penetrating through the upper and lower ends thereof and corresponding to the lifting arm (120); when the elevator car drives the movable arm (100) to move upward from the bottom of the seat (200), the lifting arm (120) can pass through the hollow opening (212) to lift the lifting arm (120) upward, so that the limiting portion (110) can abut against the upper end of the supporting portion (210).

7. The anti-sinking device according to claim 1, characterized in that: Also includes: A driving member (400), wherein the driving member (400) is capable of driving the movable arm (100) to swing toward the card seat (200).

8. The anti-sinking device according to claim 7, characterized in that: The driving member (400) is a spring.

9. An anti-sinking device according to any one of claims 1 to 8, characterized in that: Also includes: A mounting seat (500) is provided on the car, a groove (510) is provided on the side of the mounting seat (500) facing the card seat (200), the upper and lower ends of the groove (510) are open, the movable arm (100) is provided in the groove (510), and the lower end of the movable arm (100) is rotatably connected to the groove (510), and when the card seat (200) corresponds to the movable arm (100), the card seat (200) extends into the groove (510).

10. The anti-sinking device according to claim 9, characterized in that: An arc-shaped hole (511) is provided on the inner side wall of the groove (510), and a limiting column (112) extending into the arc-shaped hole (511) is provided on the limiting portion (110).

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