CN209957171U - Anti-falling device applied to vertical lifting elevator - Google Patents
Anti-falling device applied to vertical lifting elevator Download PDFInfo
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- CN209957171U CN209957171U CN201920295353.7U CN201920295353U CN209957171U CN 209957171 U CN209957171 U CN 209957171U CN 201920295353 U CN201920295353 U CN 201920295353U CN 209957171 U CN209957171 U CN 209957171U
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- damping
- box body
- wheel
- lifting frame
- stopping
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Abstract
The utility model discloses a falling-proof device applied to a vertical lifting elevator; which includes a track and a stopper slide box. Wherein, two corresponding clamping plates are arranged on the track; the stop sliding box comprises a box body, a differential lifting frame, damping wheels and stop wheels, wherein the differential lifting frame is positioned in the box body and is elastically connected with the top wall of the inner side of the box body; when the downward moving speed of the damping wheel relative to the clamping plate is higher than the normal running speed, the differential lifting frame moves upwards relative to the box body and enables the damping wheel to be matched with the stopping wheel to realize the stopping of the damping wheel; the utility model has the advantages of reasonable design, can be safe effectual realization elevator more and prevent the purpose of falling.
Description
Technical Field
The utility model relates to a falling-proof device, concretely relates to use falling-proof device on vertical lift elevator.
Background
At present, one of the potential safety hazards of the vertical lift elevator is that the elevator falls due to the breakage of the traction rope of the elevator. The anti-falling device with a pure mechanical structure in the prior art has the problems of unreasonable structural design and poor safety in use, and cannot achieve the aim of more safe and effective anti-falling; for example, patent document "CN 201710331942.1" entitled "a fall-preventing self-locking device for vertical lift elevator" is a fall-preventing device for vertical lift elevator, which is formed by a mechanical structure, when the elevator falls to the position of the rack bar 5, the extended ball-head cylindrical bar 622 and the strip-shaped plate 52 form a self-locking included angle, the elevator is clamped by self-locking, and the falling is stopped; the problem that the position of the ball head cylindrical rod 622 after extending is relatively fixed and can not retract, the car can not move up and down after being clamped, and the subsequent maintenance difficulty is high, so that the structural design is unreasonable; meanwhile, the extension of the ball-end cylindrical rod 622 is thrown out by means of inertia effect, whether the ball-end cylindrical rod 622 can be effectively thrown out is greatly influenced by uncertain factors, for example, the resistance action is increased due to the influence of factors such as damp corrosion or dust entering between the cylindrical pin and/or the ball-end cylindrical rod 622 and the blind hole 621, the situation that the individual ball-end cylindrical rod 622 cannot be thrown out in time can be caused, the elevator cannot be effectively clamped, and the safety effect is poor. For example, patent document "CN 201820509116.1" entitled "elevator anti-falling safety device", which is anti-falling through a mechanical structure, passes through the elevator anti-falling safety device when the car 1 rapidly falls, the ram vertically collides with the colliding head, the whole stopping arm obtains large kinetic energy, drives the stopping head to move circularly to approach the car, crosses a critical position, the stopping rod stops at the side edge of the limiting brick, the stopping head touches the side wall of the car, and is adsorbed on the side wall of the car under the action of the permanent magnet piece until encountering the stopping block, and the car stops moving under the support of the limiting brick; the elevator shaft clamping device has the problems that the whole clamping arm is not beneficial to arrangement in the elevator shaft, and the structural design is unreasonable; simultaneously, the clamping head and the clamping block are in instantaneous rigid contact, the impact effect is large, the buffering can not be carried out through the friction effect, and the safety and the stability of the lift car are not facilitated.
Disclosure of Invention
The utility model aims to provide a falling-proof device applied to a vertical lifting elevator aiming at the defects in the prior art; the elevator anti-falling device is reasonable in structural design, and can achieve the purpose of preventing the elevator from falling more safely and effectively.
In order to achieve the purpose, the invention adopts the technical scheme that:
a fall arrest device for use on a vertical lift elevator, comprising:
the rail is provided with two corresponding clamping plates;
the stop sliding box comprises a box body, a differential lifting frame, damping wheels and stop wheels, wherein the differential lifting frame is positioned in the box body and is elastically connected with the top wall of the inner side of the box body;
when the downward moving speed of the damping wheel relative to the clamping plate is higher than the normal running speed, the differential lifting frame moves upwards relative to the box body and enables the damping wheel to be matched with the stopping wheel to stop the damping wheel.
Further, the differential crane includes U-shaped board, slider, first spring and second spring, U-shaped board opening is down, be equipped with the spout of transversely laying on two corresponding curb plates of U-shaped board, the top of spout is equipped with the track hole of rectangular shape on two corresponding curb plates of U-shaped board, slider and spout looks adaptation, the slider sets up two and passes through first spring coupling on every U-shaped board curb plate, the damping wheel is connected with the slider, second spring one end is connected with the inboard roof of box, the other end is connected with the bottom plate of U-shaped board.
Further, a cylindrical friction plate is fixed on the outer circumference of the damping wheel.
Further, a connecting ring is arranged at the top of the box body.
The invention has the beneficial effects that:
when the utility model is used, the two rails are fixed at the two sides of the elevator shaft, the stop sliding box moves on the rails, and the cage is clamped between the two rails and is connected with the stop sliding box; in the conventional lifting and moving process of the car, the damping wheel can roll on the clamping plate, when the traction rope is broken, the car can rapidly move downwards, the rotating speed of the damping wheel is increased, the torque is improved, the damping effect is enhanced, and the downward movement speed of the damping wheel lags the descending speed of the box body, at the moment, the damping wheel drives the differential lifting frame to compress the second spring to move upwards relative to the box body and contact with the stopping wheel, the stopping wheel and the damping wheel generate friction effect to stop the damping wheel, the damping wheel and the clamping plate generate friction to realize falling prevention by using the friction resistance, meanwhile, the stopping wheel also enables the damping wheel to transversely move outwards relative to the box body, the extrusion acting force between the damping wheel and the clamping plate is increased, the friction resistance is increased, and the fixation of the sliding stopping box relative to the rail can be safely and effectively realized, so; after the traction rope is replaced, the lift car can be pulled to move upwards, the lift car drives the box body to move upwards, the differential lifting frame can gradually reset relative to the box body under the action of the second spring, the damping wheel is quickly separated from the stopping wheel, the first spring can adapt to the transverse displacement change of the damping wheel, and the smooth up-and-down movement of the lift car can be realized at the moment. The stopping sliding box and the rail are favorable for arrangement in an elevator shaft on the structural characteristics, the anti-falling purpose can be realized on the structural design, and meanwhile, the automatic unlocking can be realized by moving the elevator car upwards after the stopping sliding box and the rail are locked when the elevator falls on the structural design, so that the maintenance after the elevator falls off is facilitated; when the elevator car falls, the stopping wheel can be used for stopping the damping wheel, and the damping wheel is also promoted to move outwards transversely to increase the frictional resistance between the damping wheel and the rail, so that the stopping effect is better, and the elevator falling can be prevented more safely and effectively.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the box body of the present invention after being cut;
FIG. 3 is a schematic structural view of the box body of the present invention after the damping wheel and the stop wheel are removed;
fig. 4 is a schematic side view of the present invention;
fig. 5 is a schematic view of the usage state of the utility model after being connected with the car.
Wherein: 1-a track; 2-clamping the plate; 3, a box body; 4-differential lifting frame; 5-a damping wheel; 6-a stop wheel; 7-U-shaped plate; 8-a slide block; 9-a first spring; 10-a second spring; 11-a chute; 12-a track hole; 13-annular friction plate; 14-connecting ring.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings:
as shown in fig. 1 to 5, a fall preventing device applied to a vertical lift elevator; it comprises a rail 1 and a stop slide box.
Wherein:
the rail 1 is provided with two corresponding clamping plates 2; the track 1 can be made of channel steel, wherein two wing plates of the channel steel form a clamping plate 2; the track 1 can also be formed by two combined channel steels, the openings of the channel steels correspond to and clamp the locking sliding box, and the bottom plates of the channel steels form a clamping plate 2; the track 1 can also adopt a structural component similar to the channel steel; the tracks 1 can be fixedly connected with an elevator shaft through connecting pieces, and the tracks 1 are symmetrically arranged in the elevator shaft.
The stopping sliding box comprises a box body 3, a differential lifting frame 4, a damping wheel 5 and a stopping wheel 6; the box 3 is wholly hollow cube type, and the installation box 3 of other parts can adopt two symmetrical half boxes to pass through bolted connection to constitute for being convenient for, and the car that is convenient for locking sideslip case and elevator is connected, is equipped with go-between 14 on the box 3, and accessible cooperation is inserted and is realized being connected of box 3 and car with car fixed connection's roof beam. The differential lifting frame 4 is positioned in the box body 3 and is elastically connected with the top wall of the inner side of the box body 3, and specifically, the differential lifting frame 4 comprises a U-shaped plate 7, a sliding block 8, a first spring 9 and a second spring 10; the opening of the U-shaped plate 7 faces downwards, sliding grooves 11 which are transversely distributed are formed in the inner side plate surfaces of two corresponding side plates of the U-shaped plate 7, and strip-shaped track holes 12 which can be used for connecting the stop wheel 6 with the box body 3 are formed above the sliding grooves 11 in the two corresponding side plates of the U-shaped plate 7; the sliding block 8 is matched with the sliding groove 11, the sliding block 8 can freely slide in the sliding groove 11, and lubricating oil can be added between the sliding block 8 and the sliding groove 11 to promote the sliding action; the two sliding blocks 8 are arranged on the side plate of each U-shaped plate 7 and are connected through a first spring 9, and the first springs 9 can be embedded into the sliding grooves 11 but do not generate friction; the damping wheel 5 is connected with the sliding block 8, a connecting shaft is arranged at two ends of the specific damping wheel 5 and is fixedly connected with the sliding block 8, the damping wheel 5 can rotate slowly around the connecting shaft, the damping wheel 5 generates a beneficial friction action with the clamping plate 2 and the stopping wheel 6 in the falling prevention process, in order to further enhance the friction action, a cylindrical friction plate 13 is fixed on the outer circumference of the damping wheel 5, the friction plate 13 can be made of a brake pad frequently used on a vehicle, the track 1 and the stopping wheel 6 can be made of gray iron 205, or a matching surface with a plate made of gray iron 205 is arranged to be matched with the damping wheel 5; one end of the second spring 10 is connected with the top wall of the inner side of the box body 3, and the other end of the second spring is connected with the bottom plate of the U-shaped plate 7, so that the box body 3 is elastically connected with the differential lifting frame 4; the two damping wheels 5 are transversely and symmetrically arranged and are elastically connected to the differential lifting frame 4, and specifically, the damping wheels 5 and the differential lifting frame 4 are elastically connected by utilizing a slide block 8 and a first spring 9; the damping wheel 5 partially protrudes out of the box body 3, a matched notch is formed in the box body 3 and is used for achieving the characteristic that the damping wheel 5 partially protrudes out, the damping wheel 5 can achieve transverse elastic expansion relative to the differential lifting frame 4 under the action of a first spring 9, the damping wheel 5 covers the clamping plate 2 in a pressing mode, and the first spring 9 is in a compression state when the damping wheel 5 is matched with the track 1; the stop wheel 6 is positioned in the differential lifting frame 4 and connected with the box body 3, connecting shafts are arranged at two ends of the stop wheel 6, the stop wheel 6 can be fixedly connected with the connecting shafts or hinged with the connecting shafts, the connecting shafts can penetrate through the track holes 12 and then be fixedly connected with the box body 3, and the stop wheel 6 is positioned above the damping wheels 5, particularly above the middle position of the two damping wheels 5. When the downward moving speed of the damping wheel 5 relative to the clamping plate 2 is higher than the normal running speed, the differential lifting frame 4 moves upward relative to the box body 3 and enables the damping wheel 5 to be matched with the stopping wheel 6 to stop the damping wheel 5; the normal running speed of the damping wheel 5 refers to the lifting speed of the damping wheel 5 during the normal running of the elevator, and the elevator falling happens when the downward moving speed of the damping wheel 5 relative to the clamping plate 2 is higher than the normal running speed.
The utility model discloses a working process and principle:
after the traction rope is broken, the elevator car of the elevator can fall rapidly, and the falling speed of the elevator car exceeds the normal running speed; the cage falls fast to drive the box body 3 to fall fast synchronously, the box body 3 covers the differential lifting frame 4 through the second spring 10 to enable the damping wheel 5 to rotate fast, the damping wheel 5 has the characteristic that the damping effect is enhanced along with the increase of the rotating speed of the damping wheel 5, and the damping effect enables the downward moving speed of the damping wheel 5 to lag the downward moving speed of the box body 3; the damping wheels 5 can enable the differential lifting frame 4 to move upwards relative to the box body 3, the damping wheels 5 are in contact with the stopping wheels 6 in the upward movement process, the rotation directions of the two damping wheels 5 on the differential lifting frame 4 are opposite when the stopping slip box integrally moves downwards, and the characteristic of rotating towards the side of the stopping wheels 6 is achieved, after the damping wheels 5 are in contact with the stopping wheels 6, the stopping wheels 6 can have acting force moving downwards relative to the damping wheels 5, the damping wheels 5 and the stopping wheels 6 can obtain more beneficial contact action, so that the friction resistance action between the damping wheels 5 and the stopping wheels 6 is increased, the damping wheels 5 can be effectively stopped, and after the damping wheels 5 are stopped, the friction action is generated between the damping wheels 5 and the clamping plate 2 of the track 1 to realize that the stopping slip box stops relative; after the damping wheel 5 is contacted with the stopping wheel 6, the stopping wheel 6 also has the functions of preventing the damping wheel 5 from contracting and applying a transverse outward moving function to the damping wheel 5, the stopping wheel 6 can increase the acting force between the damping wheel 5 and the clamping plate 2, so that the frictional resistance is further increased, the stopping sliding box and the track 1 can be effectively locked, and the car can be safely and effectively prevented from falling. When the cage falls behind, the traction rope of the cage can be replaced to realize maintenance, and after the replacement is finished, the locking state of the stopping sliding box and the rail 1 can be released only by controlling the cage to move upwards in a small range; in the process that the car moves upwards, the car can drive the box body 3 to move upwards, the stopping wheel 6 is disengaged from the damping wheel 5, the stopping state of the damping wheel 5 is relieved, the damping wheel 5 can continuously roll on the track 1, the second spring 10 enables the differential lifting frame 4 and the damping wheel 5 to reset relative to the box body 3, and the quick unlocking operation can be realized through the structure.
Claims (4)
1. A fall arrest device for use on a vertical lift elevator, comprising:
the rail (1) is provided with two corresponding clamping plates (2);
the stopping sliding box comprises a box body (3), a differential lifting frame (4), two damping wheels (5) and a stopping wheel (6), wherein the differential lifting frame (4) is positioned inside the box body (3) and is elastically connected with the top wall of the inner side of the box body (3), the two damping wheels (5) are transversely and symmetrically arranged and are elastically connected to the differential lifting frame (4), part of the damping wheels (5) protrudes out of the box body (3), the damping wheels (5) can transversely and elastically stretch relative to the differential lifting frame (4), the clamping plate (2) is pressed and covered by the damping wheels (5), the stopping wheel (6) is positioned inside the differential lifting frame (4) and is connected with the box body (3), and the stopping wheel (6) is positioned above the damping wheels (5);
when the downward moving speed of the damping wheel (5) relative to the clamping plate (2) is higher than the normal running speed, the differential lifting frame (4) moves upward relative to the box body (3) and enables the damping wheel (5) to be matched with the stopping wheel (6) to stop the damping wheel (5).
2. A fall arrest device for use in a vertical lift elevator as claimed in claim 1, the differential lifting frame (4) comprises a U-shaped plate (7), a sliding block (8), a first spring (9) and a second spring (10), the U-shaped plate (7) has a downward opening, two corresponding side plates of the U-shaped plate (7) are provided with sliding chutes (11) which are transversely distributed, the upper parts of the two corresponding side plate upper chutes (11) of the U-shaped plate (7) are provided with strip-shaped track holes (12), the sliding blocks (8) are matched with the sliding grooves (11), two sliding blocks (8) are arranged on the side plate of each U-shaped plate (7) and are connected through first springs (9), the damping wheel (5) is connected with the sliding block (8), one end of the second spring (10) is connected with the top wall on the inner side of the box body (3), and the other end of the second spring is connected with the bottom plate of the U-shaped plate (7).
3. A fall arrest device for use in a vertical lift elevator according to claim 1 or 2, characterized in that a cylindrical friction plate (13) is fixed to the outer circumference of the damping wheel (5).
4. A fall arrest device for use in a vertical lift elevator, as claimed in claim 1, characterized in that the tank (3) is provided with a coupling ring (14) at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920295353.7U CN209957171U (en) | 2019-03-08 | 2019-03-08 | Anti-falling device applied to vertical lifting elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920295353.7U CN209957171U (en) | 2019-03-08 | 2019-03-08 | Anti-falling device applied to vertical lifting elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209957171U true CN209957171U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920295353.7U Expired - Fee Related CN209957171U (en) | 2019-03-08 | 2019-03-08 | Anti-falling device applied to vertical lifting elevator |
Country Status (1)
| Country | Link |
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| CN (1) | CN209957171U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320050A (en) * | 2020-04-10 | 2020-06-23 | 立达博仕电梯（苏州）有限公司 | Be used for elevator overspeed protection device that goes upward |
| CN111689331A (en) * | 2020-07-28 | 2020-09-22 | 山东省特种设备检验研究院济宁分院 | Elevator car-sliding prevention device, manufacturing method and car-sliding prevention method |
-
2019
- 2019-03-08 CN CN201920295353.7U patent/CN209957171U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320050A (en) * | 2020-04-10 | 2020-06-23 | 立达博仕电梯（苏州）有限公司 | Be used for elevator overspeed protection device that goes upward |
| CN111689331A (en) * | 2020-07-28 | 2020-09-22 | 山东省特种设备检验研究院济宁分院 | Elevator car-sliding prevention device, manufacturing method and car-sliding prevention method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 Termination date: 20210308 |