CN216105783U - Emergency danger avoiding device for elevator and elevator - Google Patents

Abstract

The utility model provides an elevator emergency danger avoiding device and an elevator, wherein the elevator emergency danger avoiding device comprises a brake cylinder and a rotating body connected with a rotating shaft, wherein the brake cylinder is fixed on an elevator main body; the rotor cover is located in the braking barrel to set up with braking barrel interval, and connect the pivot and link to each other with elevator traction system's power take off end, be equipped with the wedge piece on the rotor, the wedge piece can be along the radial outward movement of rotor along with the rotation of rotor, and support tightly on braking barrel, so that the rotor is static for braking barrel. The emergency danger avoiding device for the elevator can be tightly abutted against the braking cylinder body through the arranged wedge pieces along with the rotation of the rotating body when the elevator is out of control and descends, so that the rotating body is static relative to the braking cylinder body, the descending speed of the elevator is slowed down, the elevator can be emergently braked, and the use safety of the elevator is improved.

Description

Emergency danger avoiding device for elevator and elevator

Technical Field

The utility model relates to the technical field of elevator equipment, in particular to an emergency danger avoiding device for an elevator. Meanwhile, the utility model also relates to an elevator applying the elevator emergency danger avoiding device.

Background

Along with the continuous expansion of living space of people, high-rise and super high-rise buildings are increased day by day, the application of the elevator is more and more common, the requirement on the elevator is higher and higher, and especially the safety performance requirement of the elevator is stricter.

At present, in elevator equipment, when an elevator exceeds a speed limit or fails, a safety gear for emergently stopping a car is unreasonable in structural design, complex in structure, difficult to assemble, insufficient in use safety and prone to elevator failure.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to an elevator emergency danger avoiding device, so as to improve the safety performance of the elevator.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

an elevator emergency danger avoiding device is arranged at a power output end of an elevator traction system, and comprises a braking cylinder and a rotating body connected with a rotating shaft, wherein,

the brake cylinder is fixed on the elevator main body;

the rotor cover is located in the braking barrel, and with braking barrel interval sets up, just connect the pivot with the power take off end that the elevator dragged system links to each other, be equipped with the wedge piece on the rotor, the wedge piece is followed the rotation of rotor can be followed the radial outward movement of rotor, and support tightly in on the braking barrel, so that the rotor for the braking barrel is static.

Furthermore, an elastic reset piece is arranged between the rotating body and the wedge piece.

Further, the elastic reset piece comprises a coil spring with a first connecting end and a second connecting end; the first connecting end is fixedly connected to the connecting rotating shaft; the second link end is fixedly connected to the wedge.

Further, the coil springs are two and are symmetrically arranged at the end part of the rotating body.

Furthermore, a notch which is communicated along the self axial direction is arranged on the peripheral wall of the rotating body; the wedge is installed in the opening.

Furthermore, the wedge piece is provided with a first arc-shaped surface, a second arc-shaped surface and a third arc-shaped surface which are sequentially connected; the first arc-shaped surface is matched with the inner wall of the brake cylinder body.

Further, the bending direction of the second arc-shaped surface and the third arc-shaped surface faces the rotating direction of the rotating body.

Compared with the prior art, the utility model has the following advantages:

according to the elevator emergency danger avoiding device, the braking cylinder body, the rotating body connected with the rotating shaft and the wedge pieces arranged on the rotating body are arranged, so that when the elevator is out of control and descends, the wedge pieces can do centrifugal motion along with the over-fast rotation of the rotating body, namely, the wedge pieces can move outwards along the radial direction of the rotating body and are tightly abutted against the braking cylinder body, so that the rotating body can be static relative to the braking cylinder body, the descending speed of the elevator can be reduced, the elevator can be emergently braked, and the use safety of the elevator can be improved.

The elastic reset piece arranged between the rotating body and the wedge piece is beneficial to resetting the wedge piece and releasing the butt joint with the brake cylinder body. And the elastic reset piece adopts a coil spring, so that the elastic reset piece not only has better elastic force, but also has the characteristics of simple structure and convenience in assembly.

In addition, the wedge piece adopts consecutive first arcwall face, second arcwall face and third arcwall face, is favorable to the wedge piece to move outward smoothly along with the rotor under the centrifugal force effect, and does benefit to the wedge piece and supports tightly fast of braking barrel.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of an elevator emergency danger avoiding device according to an embodiment of the utility model;

fig. 2 is a structural diagram of an elevator emergency hedge device according to an embodiment of the utility model, wherein a brake cylinder is not installed;

fig. 3 is a schematic structural view of a rotating body according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of a wedge according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of an elevator according to an embodiment of the present invention

Description of reference numerals:

1. a brake cylinder;

2. a rotating body; 20. connecting the rotating shaft; 201. rotating the main body; 2011. opening the gap; 202. a wedge; 2021. a first arc-shaped surface; 2022. a second arcuate surface; 2023. a third arc-shaped surface;

3. a coil spring; 301. a first connection end; 302. a second connection end;

11. an elevator main body; 12. a traction sheave.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The embodiment relates to an emergency danger avoiding device for an elevator, which is arranged at a power output end of an elevator traction system and used for slowing down the descending speed of the elevator when the elevator is out of control and descends, and enabling the elevator to be emergently stopped, so that the use safety of the elevator is improved.

Based on the above design concept, an exemplary structure of the elevator emergency hedge device of the present embodiment is shown in fig. 1, and in this case, as mentioned in the foregoing, the elevator emergency hedge device includes a brake cylinder 1 and a rotor 2 having a rotating shaft 20 connected thereto. The braking cylinder body 1 is fixed on the elevator main body 11, the rotating body 2 is sleeved in the braking cylinder body 1 and is arranged at an interval with the braking cylinder body 1, the connecting rotating shaft 20 is connected with a power output end of an elevator traction system, the rotating body 2 is provided with a wedge piece 202, and the wedge piece 202 can move outwards along the radial direction of the rotating body 2 along with the rotation of the rotating body 2 and is abutted against the braking cylinder body 1, so that the rotating body 2 is static relative to the braking cylinder body 1.

Through the braking barrel 1 that sets up, rotor 2 along with traction system pivoted to and the wedge piece 202 of setting on rotor 2, can be when the elevator is out of control, the rotational speed of rotor 2 is too big in the twinkling of an eye, and make wedge piece 202 can follow rotor 2 radial outward under the effect of centrifugal force, and support tightly on braking barrel 1, and through the friction between wedge piece 202 and the braking barrel 1, with the speed that can slow down the elevator and descend, make the elevator can be by urgent system and stop, thereby can improve the security performance that the elevator used.

It should be noted that the elevator main body 11 and the traction system of the present embodiment can be made of existing mature products, and the power take-off of the traction system, which can be the end of the traction sheave 12 described below, is used to provide the rotating force to the rotating body 2. In addition, it should be noted that the distance between the rotating body 2 and the brake cylinder 1 can be set according to the actual use situation. In addition, in the material selection of wedge and brake cylinder 1, preferably adopt the material that has better wear resistance such as wear-resisting alloy steel, and for improving the frictional force between rotor 2 and the brake cylinder 1, can set up the friction arch on the matched terminal surface of wedge and brake cylinder 1.

In the present embodiment, as shown in fig. 1 to 4, in order to facilitate the restoration of the wedge member 202 after the wedge member 202 is moved outward, an elastic restoring member is provided between the rotating body 2 and the wedge member 202. In particular, the elastic return member comprises a coil spring 3 having a first connection 301 and a second connection 302, wherein the first connection 301 is attached to the connection shaft 20 and the second connection 302 is attached to the wedge member 202. The restoration of the wedges 202 after moving radially outward along the rotor 2 is facilitated by the coil spring 3 connected to the connecting shaft 20 and the wedges 202.

As one of the preferred embodiments of the present embodiment, the coil springs 3 in the present embodiment are two that are symmetrically disposed at the end of the rotor 2, that is, as shown in fig. 2, the coil springs 3 are provided on the connection rotation shaft 20 on the rotor 2. Therefore, the stability in the use process can be improved.

The structure of the rotating body 2 of the present embodiment is as shown in fig. 3, the rotating body 2 includes a rotating body 201, both ends of the rotating body 201 are provided with connection rotating shafts 20, and the first connection ends 301 of the aforementioned coil springs 3 are connected to the connection rotating shafts 20. Further, a slit 2011 is provided on the outer peripheral wall of the rotor 2, that is, the outer peripheral wall of the rotor body 201, so as to pass through the rotor body in the axial direction thereof, the wedge member 202 is provided in the slit 2011, and the outer contour of the wedge member 202 is provided to match the contour of the slit 2011.

The wedge 202 of the present embodiment is configured as shown in fig. 4, and has a first arc-shaped surface 2021, a second arc-shaped surface 2022 and a third arc-shaped surface 2023 connected in sequence. The first arc-shaped surface 2021 is disposed to match with the inner wall of the brake cylinder 1, so as to better abut against the inner wall of the brake cylinder 1 when the wedge 202 moves outwards in the radial direction of the rotor 2.

It should be noted that, in this embodiment, the elastic restoring member may be a spring, in addition to the coil spring 3, and the elastic restoring member may be disposed on the end surface of the notch 2011 corresponding to the wedge 202, in addition to the arrangement form described above.

As a preferred embodiment of the present embodiment, the curved directions of the second arc-shaped surface 2022 and the third arc-shaped surface 2023 are directed to the rotation direction of the rotating body 2. Thus, the wedge 202 can move outwards along the radial direction of the rotating body 2 smoothly under the action of the centrifugal force along with the rotating body 2, so that the wedge 202 and the brake cylinder 1 can be quickly abutted.

When the elevator danger avoiding device is used specifically, the brake cylinder 1 is fixed on the elevator main body 11, the rotor 2 and the wedge piece 202 penetrate through the brake cylinder 1, and the connecting rotating shaft 20 of the rotor 2 is fixed at the power output end of the traction system. In the normal use state of the elevator, the rotating body 2 can rotate in the braking cylinder body 1 under the driving of the power output end of the traction system. When the elevator is out of control and descends, the rotating body 2 rotates too fast, so that the wedge pieces 202 move outwards along the radial direction of the rotating body 2 under the centrifugal action and are abutted against the braking cylinder body 1, the descending speed of the elevator is reduced through the friction between the wedge pieces 202 and the braking cylinder body 1, and the elevator can be braked emergently.

The elevator of this embodiment keeps away dangerous device through the braking barrel 1 that sets up and rotor 2 along with traction system pivoted to and the wedge piece 202 and the elasticity that set up reset, can be when the elevator descends out of control, can be better slow down the descending speed of elevator, and can make the elevator can be by emergency braking, thereby can improve the security performance that the elevator used. The elevator danger avoiding device of the embodiment is compact in structure, facilitates assembly with various elevators, and has good universality and use effects.

In addition, the embodiment also relates to an elevator, as shown in fig. 5, the elevator comprises an elevator main body 11, and the elevator emergency danger avoiding device is arranged on the elevator main body 11.

Specifically, the elevator traction system of the elevator main body 11 of the embodiment includes a traction sheave 12 wound with elevator ropes, and two elevator emergency evacuation devices are symmetrically disposed at the end portions of the traction sheave 12. That is, both end portions of the traction sheave 12 shown in the drawing constitute power output ends, and the connection rotating shaft 20 formed on the rotating body 2 is detachably connected and fixed to the end portion of the traction sheave 12, wherein the connection rotating shaft 20 may be specifically fixed to the traction sheave 12 by a detachable connection such as a screw connection, an insertion connection, or a snap connection in the related art, for example.

In addition, in order to prevent the car from colliding with the bottom of the shaft due to the untimely braking of the elevator, a buffering device not shown in the figure is provided at the bottom of the elevator body 11. The cushioning device may be made using techniques well known in the art.

The elevator of this embodiment can effectively brake when the elevator is out of control and descends by adopting foretell elevator emergency refuge device, and slows down the speed that the elevator descends for the elevator can brake more smoothly, thereby does benefit to the safety in utilization that improves the elevator, and has better result of use.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. An elevator emergency danger avoiding device is arranged at a power output end of an elevator traction system and is characterized by comprising a brake cylinder body (1) and a rotating body (2) with a connecting rotating shaft (20),

the brake cylinder (1) is fixed on the elevator main body (11);

rotor (2) cover is located in braking barrel (1), and with braking barrel (1) interval sets up, just connect pivot (20) with the power take off end that the elevator dragged the system links to each other, be equipped with wedge piece (202) on rotor (2), wedge piece (202) are followed the rotation of rotor (2) can be followed the radial outward movement of rotor (2), and support tightly in on the braking barrel (1), so that rotor (2) for braking barrel (1) is static.

2. The elevator emergency hedge device of claim 1,

an elastic reset piece is arranged between the rotating body (2) and the wedge piece (202).

3. The elevator emergency hedge device of claim 2,

the elastic reset piece comprises a coil spring (3) with a first connecting end (301) and a second connecting end (302);

the first connecting end (301) is fixedly connected to the connecting rotating shaft (20);

the second connecting end (302) is fixedly connected to the wedge (202).

4. The elevator emergency hedge device of claim 3,

the coil springs (3) are symmetrically arranged at two ends of the rotating body (2).

5. The elevator emergency hedge device according to any one of claims 1 to 4,

a notch (2011) which is through along the self axial direction is arranged on the peripheral wall of the rotating body (2);

the wedge (202) is arranged in the notch (2011).

6. The elevator emergency hedge device of claim 5,

the wedge piece (202) is provided with a first arc-shaped surface (2021), a second arc-shaped surface (2022) and a third arc-shaped surface (2023) which are connected in sequence;

the first arc-shaped surface (2021) is matched with the inner wall of the brake cylinder body (1).

7. The elevator emergency hedge device of claim 6,

the bending directions of the second arc-shaped surface (2022) and the third arc-shaped surface (2023) face the rotating direction of the rotating body (2).

8. Elevator, comprising an elevator body (11), characterized in that,

the elevator main body (11) is provided with the elevator emergency danger avoiding device as claimed in any one of claims 1 to 7.

9. Elevator according to claim 8,

the elevator traction system comprises a traction sheave (12) wound with elevator ropes;

the emergency danger avoiding devices of the elevator are two devices which are symmetrically arranged at the end part of the traction sheave (12).

10. Elevator according to claim 8,

the bottom of the elevator main body (11) is provided with a buffer device.

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