Anti-falling deceleration device for elevator

Abstract

The application discloses an elevator anti-falling deceleration device and belongs to the technical field of elevator equipment. The main beam frame is arranged on the two sides of the T-shaped guide rail, the rotating wheel is rotatably arranged on the main beam frame, the sliding rod is fixedly arranged on the outer beam arm, the first and second sliding members are slidably arranged on the sliding rod, the first sliding member is arranged in linkage with the sleeve roller, the pressure roller inclined block is arranged on the second sliding member, the brake assembly comprises a brake, a sliding plate, an abutting wheel and a brake pad, the brake is fixedly arranged at the end of the inner beam arm, the sliding plate is slidably arranged in the brake, one end of the sliding plate is rotatably connected with the abutting wheel, and the other end of the sliding plate is connected with the brake pad. The main beam frame and the driving wheel group arranged on the two sides of the T-shaped guide rail can drive the transmission member at one end to move through the rotation of the rotating wheel when falling at a stall speed, and the brake pad in the brake is driven to press against the T-shaped guide rail through the transmission member, so that the friction force of the brake pad is linearly increased, and the buffer stopping is realized to avoid casualties.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of elevator equipment, and particularly relates to an anti-falling deceleration device for an elevator. BACKGROUND

[0002] The brake of an elevator is an important safety protection device of the elevator, and is one of important factors for ensuring safe operation of the elevator. At present, many elevators on the market adopt a double-thrust elevator brake. The brake is used to make the brake mechanism and the rotating part of the motor separate by generating bidirectional electromagnetic thrust, and to form a friction type brake for power-off braking under the action of an external brake spring pressure, and is suitable for occasions for realizing rapid power-off braking.

[0003] However, the above elevator brake and other types of brakes on the market all have a relatively obvious problem. When the elevator car is falling, when the electric control system detects that the main braking device fails, protection is performed by starting the anti-falling brake. Since the brake pad of the anti-falling brake is instantaneously applied to one side of the elevator guide rail, the car is instantaneously decelerated and stopped when falling, which is easy to cause the people in the car to be instantaneously impacted and form casualties, and there is a certain safety risk on the basis of effective braking. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the embodiments of the present application is to provide an anti-falling deceleration device for an elevator to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] An anti-falling deceleration device for an elevator, comprising a rack member, the rack member comprising a main beam frame, an outer beam arm and an inner beam arm, the anti-falling deceleration device comprising at least two groups of main beam frames, the main beam frames being arranged on both sides of a T-shaped guide rail, and the outer beam arm and the inner beam arm being respectively assembled and connected at both ends of the main beam frame, the inner beam arm being arranged close to one side of the T-shaped guide rail;

[0007] A drive wheel set, comprising a rotating wheel, a fixed pin shaft, a sleeve roller and a guide rod, the rotating wheel being rotatably assembled on the main beam frame, one end of the rotating wheel being movably abutted with the T-shaped guide rail, the fixed pin shaft being fixedly arranged on the rotating wheel, the sleeve roller being slidably assembled on the fixed pin shaft, the guide rod being fixedly connected to one end of the sleeve roller, and the guide rod being used to limit the movement track of the sleeve roller;

[0008] A transmission member, comprising a sliding rod, a first sliding piece, a second sliding piece and a pressure roller inclined block, the sliding rod being fixedly arranged on the outer beam arm, the first sliding piece and the second sliding piece being slidably assembled on the sliding rod, the first sliding piece being linked with the sleeve roller, the second sliding piece being arranged on one side of the first sliding piece, and the pressure roller inclined block being assembled on the second sliding piece; and

[0009] The brake assembly comprises a brake, a sliding plate, an abutting wheel and a brake pad, the brake is fixedly arranged at the end of the inner beam arm, the sliding plate is slidably arranged in the brake, one end of the sliding plate is rotatably connected with the abutting wheel, the abutting wheel is arranged towards the side of the second sliding member, the other end of the sliding plate is connected with the brake pad, and the brake pad is arranged towards the side of the T-shaped guide rail.

[0010] As a further scheme of the present application, the rotating wheel rolls against the T-shaped guide rail.

[0011] As a further scheme of the present application, the rack member further comprises a connecting column, the connecting column is arranged on one side of the inner beam arm, and the main beam frame is fixedly connected with the elevator through the connecting column.

[0012] As a further scheme of the present application, the driving wheel set further comprises a guide sleeve, the guide sleeve is fixedly arranged on the main beam frame and slidably connected with the guide rod, and is used for limiting the movement track of the guide rod.

[0013] As a further scheme of the present application, the driving wheel set further comprises a connecting arm, the connecting arm is movably arranged between the sleeve roller and the first sliding member, one end of the connecting arm is rotatably connected with the sleeve roller, and the other end of the connecting arm is movably connected with the first sliding member.

[0014] As a further scheme of the present application, the transmission member further comprises an elastic member, the elastic member is arranged between the second sliding member and the outer beam arm, and is used for driving the elastic reset of the second sliding member.

[0015] As a further scheme of the present application, the brake assembly further comprises a one-way tooth groove and a buckle groove, the one-way tooth groove is arranged on the inner wall of the brake, the buckle groove is arranged on the outer wall of the sliding plate, and the one-way tooth groove is used for limiting the movement direction of the buckle groove.

[0016] Compared with the prior art, the embodiment of the present application has the following beneficial effects:

[0017] The main beam frame and the driving wheel set arranged on both sides of the T-shaped guide rail can drive the movement of the transmission member at one end through the rotation of the rotating wheel when falling at a stall speed, and the brake pad in the brake is driven to press towards the T-shaped guide rail through the transmission member, so that the friction force of the brake pad is linearly increased, and the buffer stopping is realized to avoid casualties. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure shows the three-dimensional structure of the elevator anti-falling deceleration device.

[0019] Figure 2A front structure schematic view of the elevator anti-falling deceleration device provided in an embodiment of the present application.

[0020] Figure 3 A structure schematic view of the elevator anti-falling deceleration device provided in an embodiment of the present application.

[0021] Figure 4 A structure schematic view of the elevator anti-falling deceleration device provided in an embodiment of the present application.

[0022] Figure 5 A side structure schematic view of the elevator anti-falling deceleration device provided in an embodiment of the present application.

[0023] Reference signs: 1 - frame member, 101 - main beam frame, 102 - outer beam arm, 103 - inner beam arm, 104 - attachment column, 2 - drive wheel set, 201 - rotating wheel, 202 - fixed pin shaft, 203 - sleeve roller, 204 - guide rod, 205 - guide sleeve, 206 - connecting arm, 3 - transmission member, 301 - sliding rod, 302 - first sliding piece, 303 - second sliding piece, 304 - elastic piece, 305 - pressure roller inclined block, 4 - brake assembly, 401 - brake, 402 - sliding plate, 403 - abutting wheel, 404 - brake pad, 405 - one-way tooth groove, 406 - buckle groove, 5 - T-shaped guide rail. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the structural features and effects of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0025] Please refer to Figures 1-5The elevator anti-falling deceleration device in one embodiment of the present application comprises a rack member 1, which comprises a main beam frame 101, an outer beam arm 102 and an inner beam arm 103. The elevator anti-falling deceleration device comprises at least two groups of main beam frames 101, which are arranged on both sides of a T-shaped guide rail 5, and the outer beam arm 102 and the inner beam arm 103 are respectively assembled and connected at both ends of the main beam frame 101, and the inner beam arm 103 is arranged close to one side of the T-shaped guide rail 5. A drive wheel set 2 comprises a rotating wheel 201, a fixed pin shaft 202, a sleeve roller 203 and a guide rod 204. The rotating wheel 201 is rotatably assembled on the main beam frame 101, one end of which is in movable abutment with the T-shaped guide rail 5. The fixed pin shaft 202 is fixedly arranged on the rotating wheel 201, and the sleeve roller 203 is slidably assembled on the fixed pin shaft 202. One end of the sleeve roller 203 is fixedly connected with the guide rod 204, which is used to limit the movement track of the sleeve roller 203. A transmission member 3 comprises a sliding rod 301, a first sliding piece 302, a second sliding piece 303 and a pressure roller inclined block 305. The sliding rod 301 is fixedly arranged on the outer beam arm 102, and the first sliding piece 302 and the second sliding piece 303 are slidably assembled on the sliding rod 301. The first sliding piece 302 is arranged in linkage with the sleeve roller 203, and the second sliding piece 303 is arranged on one side of the first sliding piece 302, and the pressure roller inclined block 305 is assembled on the second sliding piece 303. A brake assembly 4 comprises a brake 401, a sliding plate 402, an abutment wheel 403 and a brake pad 404. The brake 401 is fixedly assembled at the end of the inner beam arm 103, and the sliding plate 402 is slidably assembled in the brake 401. One end of the sliding plate 402 is rotatably connected with the abutment wheel 403, which is arranged towards one side of the pressure roller inclined block 305. The other end of the sliding plate 402 is connected with the brake pad 404, which is arranged towards one side of the T-shaped guide rail 5.

[0026] In actual application, when the anti-falling deceleration device protects the elevator, in the process of falling after the elevator failure, the speed of the elevator increases, so that the rotating angular velocity of the rotating wheel 201, which is arranged in the T-shaped guide rail 5, also increases. At this time, the sleeve roller 203 is movably assembled at one end of the rotating wheel 201 through the fixed pin shaft 202, and the guide rod 204 on one side of the sleeve roller 203 limits the direction of one-way sliding. When the rotating wheel 201 rotates, the sleeve roller 203 on one side of the rotating wheel 201 reciprocates transversely through the fixed pin shaft 202 movably connected with the rotating wheel 201, and in the process of movement, the first sliding piece 302 is driven to move, so that the first sliding piece 302 periodically slides on the slide rod 301 following the sleeve roller 203. When the rotating speed of the rotating wheel 201 increases during falling, the transverse reciprocating speed of the sleeve roller 203 increases, so that the torque acting on one side of the first sliding piece 302 increases, so that the first sliding piece 302 drives the second sliding piece 303 to synchronously slide on the slide rod 301. When the first sliding piece 302 moves to the limit position, the second sliding piece 303 can continue to drive the pressing roller inclined block 305 on one side to move towards the abutting wheel 403 side due to inertia, and in the process of abutting with the abutting wheel 403, the sliding plate 402 is driven to slide in the brake 401, and the brake pad 404 at the end of the sliding plate 402 abuts on the T-shaped guide rail 5, so as to realize the deceleration of the elevator. In this process, since the rotating speed of the rotating wheel 201 gradually increases during falling, the reciprocating speed of the sleeve roller 203 also gradually increases, so that the reciprocating sliding speed of the first sliding piece 302 gradually increases in the process of linkage with the sleeve roller 203, so that the distance of the second sliding piece 303 moving towards the pressing roller inclined block 305 side increases linearly under the action of inertia, so as to drive the sliding plate 402 to linearly slide in the brake 401 towards the T-shaped guide rail 5 side, so that the friction between the brake pad 404 and the T-shaped guide rail 5 continuously increases, so that the device realizes the linearly increasing deceleration effect. Compared with the direct stopping mode of the traditional brake structure, the device has better buffering effect. In the moment of failure, the brake pad 404 is indirectly pressed on the elevator guide rail through the rotating wheel 201, so as to realize the buffering and deceleration, and the accidental falling injury of the personnel in the elevator caused by direct stopping can be avoided.

[0027] In one case of the embodiment, when the elevator moves at a normal running speed, the rotating wheel 201 rotates at a constant speed, and when the first sliding piece 302 drives the second sliding piece 303 to move, the limit position of the second sliding piece 303 does not contact the abutting wheel 403, so that the brake assembly 4 is in a non-working condition.

[0028] Please see Figure 1 In a preferred embodiment of the invention, the rotary wheel 201 rolls against the T-shaped guide rail 5.

[0029] In practical application, the rotary wheel 201 always rolls against the T-shaped guide rail 5, so that the speed change of the elevator during the descent can be intuitively displayed through the rotation speed of the rotary wheel 201, and the speed change can be transmitted through the rotary wheel 201, thereby achieving buffering and deceleration of the elevator.

[0030] Please see Figure 2 In a preferred embodiment of the invention, the frame component 1 further includes mounting columns 104, which are arrayed on one side of the inner beam arm 103, and the main beam frame 101 is fixedly connected to the elevator via the mounting columns 104.

[0031] In practical application, the main beam frame 101 is fixedly connected to the elevator via the mounting column 104, and the main beam frame 101 is pressed against one side of the T-shaped guide rail 5 while being assembled and connected to the elevator, so that the slewing wheel 201 is always in rolling contact with the T-shaped guide rail 5.

[0032] Please see Figure 3 In a preferred embodiment of this embodiment, the drive wheel assembly 2 further includes a guide sleeve 205, which is fixedly mounted on the main beam frame 101 and slidably connected with the guide rod 204 to limit the movement trajectory of the guide rod 204.

[0033] In practical application, the guide sleeve 205 is fixedly mounted on the main beam frame 101 and slidably connected with the guide rod 204. During the rotation of the rotary wheel 201, the guide rod 204 at one end of the roller 203 slides in the guide sleeve 205, causing the guide rod 204 on one side of the roller 203 to reciprocate synchronously in the guide sleeve 205 when the fixed pin 202 rotates circumferentially, thereby limiting the movement trajectory of the guide rod 204.

[0034] Please see Figure 3 In a preferred embodiment of the invention, the drive wheel assembly 2 further includes a connecting arm 206, which is movably disposed between the sleeve roller 203 and the first sliding member 302. One end of the connecting arm 206 is rotatably connected to the sleeve roller 203, and the other end is movably connected to the first sliding member 302.

[0035] In practical application, the connecting arm 206 is rotatably connected to the sleeve roller 203 and the first sliding member 302, so that the slide rod 301 drives the first sliding member 302 to slide back and forth on the slide rod 301 through the connecting arm 206 during the transverse reciprocating motion. The sleeve roller 203 is preferably assembled and connected to the first sliding member 302 through a connecting rod, so that it can directly act on the first sliding member 302 during the transmission process, reducing the lag of the transmission structure and ensuring that the brake assembly 4 can be driven to move through the transmission structure at the moment of falling.

[0036] Please see Figure 4 In a preferred embodiment of the invention, the transmission component 3 further includes an elastic element 304, which is assembled between the second sliding member 303 and the outer beam arm 102 to drive the second sliding member 303 to elastically reset.

[0037] In practical application, the elastic element 304 is elastically assembled between the second sliding element 303 and the outer beam arm 102 to drive the elastic reset of the second sliding element 303, so that the second sliding element 303 always moves elastically toward the first sliding element 302, so as to drive the second sliding element 303 to slide synchronously on the slide rod 301 through the movement of the first sliding element 302.

[0038] In one embodiment, when the elevator is falling, the rapid movement of the roller 203 can drive the first sliding member 302 to synchronously press the second sliding member 303, and cause the second sliding member 303 to move towards the abutting wheel 403 on the slide rod 301 against the elastic force of the elastic member 304, and cause the friction between the device and the T-shaped guide rail 5 to increase linearly, thereby achieving buffer braking.

[0039] Please see Figure 4 In a preferred embodiment of the invention, the brake assembly 4 further includes a one-way toothed groove 405 and a snap-fit ​​groove 406. The one-way toothed groove 405 is disposed on the inner wall of the brake 401, and the snap-fit ​​groove 406 is disposed on the outer wall of the sliding plate 402. The one-way toothed groove 405 is used to limit the movement direction of the snap-fit ​​groove 406.

[0040] In practical application, when the second sliding member 303 drives the pressure roller inclined block 305 to press towards the abutting wheel 403, the abutting wheel 403 presses the sliding plate 402 to slide directionally in the brake 401 during the process of abutting with the pressure roller inclined block 305. When the sliding plate 402 drives the brake pad 404 to slide towards the T-shaped guide rail 5, the snap-fit ​​groove 406 on the outer wall of the sliding plate 402 is locked onto the one-way toothed groove 405 on the inner wall of the sliding plate 402 during the sliding process, so that the sliding plate 402 moves unidirectionally in the brake 401, so that the brake pad 404 at the end of the sliding plate 402 is limited to abutting against the T-shaped guide rail 5, thereby stopping the elevator.

[0041] The above embodiments of the present invention provide an elevator anti-fall deceleration device. Through the main beam frame 101 and drive wheel set 2 arranged on both sides of the T-shaped guide rail 5, when the elevator stalls and falls, the rotation of the rotary wheel 201 drives the transmission component 3 at one end to move. The transmission component 3 drives the brake pad 404 in the brake 401 to press towards the T-shaped guide rail 5, so that the friction of the brake pad 404 increases linearly, thereby achieving buffer braking and avoiding injury or death.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fall prevention and deceleration device for elevators, characterized in that, The elevator anti-fall and deceleration device includes: The elevator frame components include a main beam frame, an outer beam arm, and an inner beam arm. The elevator anti-fall deceleration device includes at least two sets of main beam frames. The main beam frames are arranged on both sides of the T-shaped guide rail, and the outer beam arm and the inner beam arm are respectively assembled and connected at both ends of the main beam frame. The inner beam arm is located on the side closer to the T-shaped guide rail. The drive wheel assembly includes a rotary wheel, a fixed pin, a sleeve roller, and a guide rod. The rotary wheel is rotatably mounted on the main beam frame, with one end of it movably abutting against a T-shaped guide rail. A fixed pin is fixedly arranged on the rotary wheel, and a sleeve roller is slidably mounted on the fixed pin. A guide rod is fixedly connected to one end of the sleeve roller, and the guide rod is used to limit the movement trajectory of the sleeve roller. A transmission component, comprising a slide rod, a first sliding member, a second sliding member, and a pressure roller inclined block, wherein the slide rod is fixedly mounted on the outer beam arm, and the first and second sliding members are slidably mounted on the slide rod; the first sliding member is linked to the sleeve roller; the second sliding member is located on one side of the first sliding member, and a pressure roller inclined block is mounted thereon; and The brake assembly includes a brake, a sliding plate, an abutment wheel, and a brake pad. The brake is fixedly mounted on the end of the inner beam arm, and a sliding plate is slidably mounted inside it. One end of the sliding plate is rotatably connected to an abutment wheel, which is positioned facing the side of the second sliding member. The other end of the sliding plate is connected to a brake pad, which is positioned facing the side of the T-shaped guide rail.

2. The elevator anti-fall deceleration device according to claim 1, characterized in that, The rotary wheel rolls against the T-shaped guide rail.

3. The elevator anti-fall deceleration device according to claim 1, characterized in that, The frame components also include mounting columns, which are arranged in an array on one side of the inner beam arm. The main beam frame is fixedly connected to the elevator via the mounting columns.

4. The elevator anti-fall deceleration device according to claim 1, characterized in that, The drive wheel assembly also includes a guide sleeve, which is fixedly mounted on the main beam frame and slidably connected with the guide rod to limit the movement trajectory of the guide rod.

5. The elevator anti-fall deceleration device according to claim 1, characterized in that, The drive wheel assembly also includes a connecting arm, which is movably disposed between the sleeve roller and the first sliding member. One end of the connecting arm is rotatably connected to the sleeve roller, and the other end is movably connected to the first sliding member.

6. The elevator anti-fall deceleration device according to claim 1, characterized in that, The transmission component also includes an elastic element, which is assembled between the second sliding member and the outer beam arm to drive the second sliding member to elastically reset.

7. The elevator anti-fall deceleration device according to claim 1, characterized in that, The brake assembly further includes a one-way toothed groove and a snap-fit ​​groove. The one-way toothed groove is arranged on the inner wall of the brake, and the snap-fit ​​groove is arranged on the outer wall of the sliding plate. The one-way toothed groove is used to limit the movement direction of the snap-fit ​​groove.

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