CN112660958A - Anti-falling emergency protection device used in elevator shaft - Google Patents
Anti-falling emergency protection device used in elevator shaft Download PDFInfo
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- CN112660958A CN112660958A CN202011587845.7A CN202011587845A CN112660958A CN 112660958 A CN112660958 A CN 112660958A CN 202011587845 A CN202011587845 A CN 202011587845A CN 112660958 A CN112660958 A CN 112660958A
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- 230000003139 buffering effect Effects 0.000 description 8
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- 230000007246 mechanism Effects 0.000 description 3
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Abstract
The invention discloses an anti-falling emergency protection device used in an elevator shaft, which comprises an elevator shaft and a car, wherein stopping blocks are fixedly arranged on two sides of the top of the car, an arc-shaped clamping groove is formed in the bottom of each stopping block, a stopping plate is fixedly arranged outside a connecting rod, arc-shaped limiting strips are fixedly arranged on two ends of the top of each stopping plate, anti-falling plates are fixedly arranged on two sides of each arc-shaped limiting strip, limiting grooves are formed in two ends of each stopping plate, a first buffer spring is sleeved outside each buffer rod, and a buffer plate is fixedly arranged on the top of each supporting plate. Through setting up the cut-off board and ending the piece, when wire rope fracture made the car fall, the car descends fast, and the piece that ends at this moment fails to counterpoint with the restriction groove in the cut-off board, has just fallen on the top of cut-off board by the piece, and along with the continuation rotation of hauler, the arc draw-in groove that ends the piece bottom just is located the outside of arc spacing completely, owing to the effect of the board of preventing falling, the spacing card of arc is in the bottom of cut-off piece, makes the car unable continuation descend.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to an anti-falling emergency protection device used in an elevator shaft.
Background
An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. The vertical lift elevator has a car that runs between at least two vertical rows of rigid guide rails or guide rails with an angle of inclination of less than 15 °. The size and the structural form of the car are convenient for passengers to access or load and unload goods.
With the advance of urbanization, more and more people migrate to cities, the buildings have to be covered higher and higher in the limited land of the cities in order to accommodate the huge number of people, elevators serving as vehicles for vertical transportation in high-rise buildings have been developed for hundreds of years, the safety protection of the elevator is improved day by day, however, due to various reasons, the elevator falling and bottom-squatting accidents still happen sometimes, once the bottom-squatting accidents happen, the passengers are greatly injured, even the life safety is threatened, such as the one disclosed in chinese patent No. CN111204633A, the arrangement of the speed reducing mechanism reduces the falling speed of the elevator, so that a better buffering effect on the falling of the elevator is achieved, and the arrangement of the first buffering mechanism and the second buffering mechanism prevents the buffering device from generating larger resilience force to cause impact injury to passengers after the buffering device is subjected to impact force; however, the invention only has the function of buffering the lift car, the lift car cannot be locked in time when falling, and the impact force can be reduced only by buffering the lift car through the buffer device at the bottom, so that the safety of carrying passengers in the lift car is not facilitated.
Disclosure of Invention
The invention aims at providing a falling-prevention emergency protection device used in an elevator shaft, which solves the safety problem that the existing elevator shaft car buffer device can not lock a car in time when the car falls due to the function of buffering the car in the use process in the background technology, and the car can only buffer through a buffer device at the bottom to reduce the impact force, so that the safety problem that the interior of the car is not beneficial to carrying passengers is caused.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-falling emergency protection device used in an elevator shaft comprises an elevator shaft and a car, wherein both sides of the top of the car are fixedly provided with a stopping block, the bottom of the stopping block is provided with an arc-shaped clamping groove, both ends inside the elevator shaft are fixedly provided with a connecting rod, the outside of the connecting rod is fixedly provided with a stopping plate, both ends of the top of the stopping plate are fixedly provided with arc-shaped limiting strips, both sides of the arc-shaped limiting strips are fixedly provided with anti-falling plates, both ends of the stopping plate are provided with limiting grooves, the top of the connecting rod is fixedly provided with a driving gear, the top of the elevator shaft is fixedly provided with an operating box, both sides of the inner wall of the operating box are fixedly provided with a transmission rod, the outside of the transmission rod is fixedly provided with a threaded transmission block, the outside of the transmission rod is fixedly provided with a driven rotating, the outside winding of bobbin has wire rope, the equal fixed mounting in both ends of bobbin has initiative runner, one side fixed mounting of bobbin has the hauler, the bottom fixed mounting of elevartor shaft inner wall has a fixed cylinder, the buffer beam has been cup jointed at the top of fixed cylinder, first buffer spring has been cup jointed to the outside of buffer beam, the top fixed mounting of buffer beam has the backup pad, the top fixed mounting of backup pad has the buffer board.
Preferably, the equal fixed mounting in both sides of car has the link, one side fixed mounting that the link is kept away from the car has the connecting gear, the equal fixed mounting in both sides of elevartor shaft has the rack, connecting gear and rack mesh mutually.
Preferably, a protection plate is fixedly installed at the bottom of the elevator shaft.
Preferably, wire rope's bottom and car fixed connection, mesh between drive gear and the screw drive piece mutually, be connected through the belt between initiative runner and the driven runner.
Preferably, the stop block has four, and equally divide two sets of symmetries to install in the both sides of car, the connecting rod has four, and equally divide two sets of symmetries fixed mounting in the inside of elevartor shaft.
Preferably, arc-shaped mounting grooves are formed in two sides of the inner wall of the elevator shaft, and the arc-shaped mounting grooves are matched with the specification and the size of the stop plate.
Preferably, both sides of backup pad all articulate there is the carriage release lever, one side that the backup pad was kept away from to the carriage release lever articulates there is the sliding block, the slide bar has been cup jointed to the inside of sliding block, the outside of slide bar has cup jointed second buffer spring.
Preferably, there are two moving rods, the two sliding blocks are respectively located at the top and the bottom of the sliding rod, and the second buffer spring is located between the two sliding blocks.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up the cut-off board and ending the piece, when wire rope fracture made the car fall, the car descends fast, and the piece that ends at this moment fails to counterpoint with the restriction groove in the cut-off board, has just fallen on the top of cut-off board by the piece, and along with the continuation rotation of hauler, the arc draw-in groove that ends the piece bottom just is located the outside of arc spacing completely, owing to the effect of the board of preventing falling, the spacing card of arc is in the bottom of cut-off piece, makes the car unable continuation descend.
2. Through first buffer spring and second buffer spring to be provided with the guard plate in the bottom of car, fall when the car, guard plate and buffer board contact, and produce the cushion effect under first buffer spring and second buffer spring's effect, reduced the car and fallen the impact force that produces to the buffer board top, protect the inside passenger carrying of car.
3. Through setting up the connection gear and the rack of meshing mutually, when the car reciprocated, make the connection gear remove on the rack, strengthened being connected between car and the elevartor shaft, make the car can stabilize and go up and down in vertical direction.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a partial perspective view of the present invention;
FIG. 3 is a schematic perspective view of a stop block according to the present invention;
FIG. 4 is a schematic perspective view of a cut-off plate according to the present invention;
FIG. 5 is a partial perspective view of the present invention;
FIG. 6 is a schematic perspective view of the inside of the operation box of the present invention;
fig. 7 is a partial front view of the present invention.
In the figure: 1. an elevator shaft; 2. a car; 3. a connecting frame; 4. a connecting gear; 5. a rack; 6. a stop block; 7. an arc-shaped clamping groove; 8. a protection plate; 9. a connecting rod; 10. a cut-off plate; 11. an arc-shaped limiting strip; 12. a falling prevention plate; 13. a limiting groove; 14. an arc-shaped mounting groove; 15. a drive gear; 16. an operation box; 17. a transmission rod; 18. a threaded transmission block; 19. a driven runner; 20. a bobbin; 21. a wire rope; 22. a driving runner; 23. a traction machine; 24. a fixed cylinder; 25. a buffer rod; 26. a first buffer spring; 27. a support plate; 28. a buffer plate; 29. a travel bar; 30. a slider; 31. a slide bar; 32. a second buffer spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 7, the present invention provides a technical solution: an anti-falling emergency protection device used in an elevator shaft comprises an elevator shaft 1 and an elevator car 2, wherein both sides of the top of the elevator car 2 are fixedly provided with a stopping block 6, the bottom of the stopping block 6 is provided with an arc-shaped clamping groove 7, both ends inside the elevator shaft 1 are fixedly provided with a connecting rod 9, the outside of the connecting rod 9 is fixedly provided with a stopping plate 10, both ends of the top of the stopping plate 10 are fixedly provided with arc-shaped limiting strips 11, both sides of the arc-shaped limiting strips 11 are fixedly provided with anti-falling plates 12, both ends of the stopping plate 10 are provided with limiting grooves 13, the top of the connecting rod 9 is fixedly provided with a driving gear 15, the top of the elevator shaft 1 is fixedly provided with an operating box 16, both sides of the inner wall of the operating box 16 are fixedly provided with a transmission rod 17, the outside of the transmission rod 17 is fixedly provided with a threaded transmission block 18, operation box 16's top fixed mounting has bobbin 20, bobbin 20's outside winding has wire rope 21, wire rope 21's bottom and car 2 fixed connection, the equal fixed mounting in both ends of bobbin 20 has initiative runner 22, be connected through the belt between initiative runner 22 and the driven runner 19, one side fixed mounting of bobbin 20 has hauler 23, the bottom fixed mounting of elevartor shaft 1 inner wall has a fixed cylinder 24, buffer beam 25 has been cup jointed at the top of fixed cylinder 24, first buffer spring 26 has been cup jointed to the outside of buffer beam 25, the top fixed mounting of buffer beam 25 has backup pad 27, the top fixed mounting of backup pad 27 has buffer board 28.
In this embodiment, the winding reel 20 is rotated by starting the traction machine 23, the winding reel 20 is wound or unwound, so as to drive the car 2 to move up and down through the steel wire rope 21, the winding reel 20 drives the driving wheels 22 at two ends of the winding reel 20 to rotate due to the rotation of the winding reel 20, the driving wheels 22 are connected with the driven wheels 19 through the belt, so the driven wheels 19 rotate and drive the transmission rod 17, the transmission rod 17 drives the thread transmission block 18 outside the transmission rod 17 to rotate, the driving gear 15 rotates due to the meshing action between the thread transmission block 18 and the driving gear 15, so as to drive the connecting rod 9 at the bottom of the driving rod to rotate, the stop plate 10 outside the connecting rod 9 rotates, when the car 2 normally goes up and down, the stop blocks 6 at two sides of the car 2 just pass through the limiting grooves 13 in the stop plate 10, when the steel wire rope 21 breaks to make the car, the car 2 moves down fast, stop block 6 at this moment can not align with limiting groove 13 in stop block 10, stop block 6 has just fallen on the top of stop block 10, along with the continuation of hauler 23 rotates, arc draw-in groove 7 of stop block 6 bottom just is located the outside of arc spacing strip 11 completely, owing to the effect of preventing falling board 12, arc spacing strip 11 card is in the bottom of stop block 6, make car 2 can't continue to descend, when car 2 falls to the bottom of elevartor shaft 1, car 2 contact buffer board 28, buffer rod 25 moves to the inside of fixed cylinder 24, first buffer spring 26 is extrudeed, produce the cushion effect under first buffer spring 26, the produced impact force in buffer board 28 top when car 2 falls has been reduced, the passenger carrying inside the car 2 is protected.
Example two:
as shown in fig. 1 to 7, on the basis of the first embodiment, the present invention provides a technical solution: the equal fixed mounting in both sides of car 2 has link 3, and one side fixed mounting that car 2 was kept away from to link 3 has connecting gear 4, and the equal fixed mounting in both sides of elevartor shaft 1 has rack 5, and connecting gear 4 meshes with rack 5 mutually.
In this embodiment, through setting up engaged with connecting gear 4 and rack 5, when car 2 reciprocated, make connecting gear 4 move on rack 5, strengthened the connection between car 2 and the elevartor shaft 1, make car 2 can stabilize and go up and down in vertical direction.
Example three:
as shown in fig. 1 to 7, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: a protective plate 8 is fixedly arranged at the bottom of the elevator shaft 1.
In this embodiment, the protection plate 8 is provided to protect the car 2.
Example four:
as shown in fig. 1 to 7, on the basis of the first embodiment, the second embodiment and the third embodiment, the present invention provides a technical solution: there are four stop blocks 6, and divide equally two sets of symmetry and install in the both sides of car 2, and connecting rod 9 has four, and divide equally two sets of symmetry fixed mounting in the inside of elevartor shaft 1.
In this embodiment, through setting up four and cutting off piece 6 and four and cutting off board 10, when car 2 falls, can be stable utilize four to cut off piece 6 and four to cut off board 10 and advance to support car 2, make car 2's atress even, be favorable to dying to the lock of car 2.
Example five:
as shown in fig. 1 to 7, on the basis of the first embodiment, the second embodiment, the third embodiment and the fourth embodiment, the present invention provides a technical solution: arc mounting groove 14 has all been seted up to the both sides of elevartor shaft 1 inner wall, and arc mounting groove 14 and the specification and dimension looks adaptation of cutting board 10.
In this embodiment, the arc-shaped mounting groove 14 is provided to provide a moving position for the rotating cut-off plate 10, so that the cut-off plate 10 can normally rotate without being affected by the elevator shaft 1.
Example six:
as shown in fig. 1 to 7, on the basis of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment and the fifth embodiment, the present invention provides a technical solution: two sides of the supporting plate 27 are hinged with moving rods 29, one side, away from the supporting plate 27, of each moving rod 29 is hinged with a sliding block 30, a sliding rod 31 is sleeved inside each sliding block 30, a second buffer spring 32 is sleeved outside each sliding rod 31, the moving rods 29 are two, the two sliding blocks 30 are located at the top and the bottom of each sliding rod 31 respectively, and the second buffer springs 32 are located between the two sliding blocks 30.
In this embodiment, when the car 2 falls and applies a force to the supporting plate 27, under the action of the second buffer spring 32, the moving rods 29 on both sides of the supporting plate 27 move accordingly, and the first buffer spring 32 and the second buffer spring 26 are used in cooperation, so that the impact force generated when the car 2 falls to the top of the buffer plate 28 is reduced, and passengers in the car 2 are protected.
The working principle and the using process of the invention are as follows: the winding reel 20 is rotated by starting the traction machine 23, the winding reel 20 is wound or unwound, so that the cage 2 is driven by the steel wire rope 21 to move up and down, the connecting gear 4 moves on the rack 5 while the cage 2 moves up and down, the winding reel 20 drives the driving rotating wheels 22 at two ends of the winding reel 20 to rotate due to the rotation of the winding reel 20, the driving rotating wheels 22 and the driven rotating wheels 19 are connected through a belt, so that the driven rotating wheels 19 rotate and drive the transmission rod 17, the transmission rod 17 drives the threaded transmission block 18 outside the transmission rod 17 to rotate, the drive gear 15 rotates due to the meshing action between the threaded transmission block 18 and the drive gear 15, so that the connecting rod 9 at the bottom of the transmission rod 9 is driven to rotate, the stop plate 10 outside the connecting rod 9 rotates, and when the cage 2 normally goes up and down, the stop blocks 6 at two sides of the cage 2 just pass through the, when the steel wire rope 21 is broken to cause the car 2 to fall, the car 2 moves downwards rapidly, the stop block 6 cannot be aligned with the limiting groove 13 in the stop plate 10, the stop block 6 falls on the top of the stop plate 10, the arc-shaped clamping groove 7 at the bottom of the stop block 6 is completely positioned outside the arc-shaped limiting strip 11 along with the continuous rotation of the tractor 23, due to the action of the falling-preventing plate 12, the arc-shaped limiting strip 11 is clamped at the bottom of the stop block 6, so that the car 2 cannot descend continuously, when the car 2 falls to the bottom of the elevator shaft 1, the car 2 contacts the buffer plate 28, the buffer rod 25 moves towards the inside of the fixed barrel 24, the first buffer spring 26 is extruded, force is generated under the action of the first buffer spring 26, when the car 2 falls to bear force on the support plate 27, under the action of the second buffer spring 32, the buffer rods 29 at two sides of the support plate 27 move along with the second buffer spring 32, and the first buffer spring 26 and the second buffer spring 32 are matched for, the impact force generated when the car 2 falls to the top of the buffer plate 28 is reduced, and passengers in the car 2 are protected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A fall protection emergency protection device for use in a hoistway, comprising a hoistway (1) and a car (2), characterized in that: the elevator shaft comprises an elevator shaft (2), wherein a stopping block (6) is fixedly mounted on two sides of the top of the elevator shaft (2), an arc-shaped clamping groove (7) is formed in the bottom of the stopping block (6), a connecting rod (9) is fixedly mounted at two ends of the inside of the elevator shaft (1), a stopping plate (10) is fixedly mounted on the outside of the connecting rod (9), arc-shaped limiting strips (11) are fixedly mounted at two ends of the top of the stopping plate (10), anti-falling plates (12) are fixedly mounted on two sides of the arc-shaped limiting strips (11), limiting grooves (13) are formed in two ends of the stopping plate (10), a driving gear (15) is fixedly mounted at the top of the connecting rod (9), an operation box (16) is fixedly mounted at the top of the elevator shaft (1), transmission rods (17) are fixedly mounted on two sides of the inner wall of the operation box (16), and a threaded transmission block (, the elevator shaft is characterized in that a driven rotating wheel (19) is fixedly mounted on the outer portion of the transmission rod (17), a bobbin (20) is fixedly mounted at the top of the operation box (16), a steel wire rope (21) is wound on the outer portion of the bobbin (20), driving rotating wheels (22) are fixedly mounted at the two ends of the bobbin (20), a tractor (23) is fixedly mounted on one side of the bobbin (20), a fixed cylinder (24) is fixedly mounted at the bottom of the inner wall of the elevator shaft (1), a buffer rod (25) is sleeved at the top of the fixed cylinder (24), a first buffer spring (26) is sleeved on the outer portion of the buffer rod (25), a support plate (27) is fixedly mounted at the top of the buffer rod (25), and a buffer plate (28) is fixedly mounted at the top of the support plate (27.
2. A fall arrest emergency protection device for use in a hoistway according to claim 1, characterized in that: the equal fixed mounting in both sides of car (2) has link (3), one side fixed mounting that car (2) were kept away from in link (3) has connecting gear (4), the equal fixed mounting in both sides of elevartor shaft (1) has rack (5), connecting gear (4) and rack (5) mesh mutually.
3. A fall arrest emergency protection device for use in a hoistway according to claim 1, characterized in that: the bottom of the elevator shaft (1) is fixedly provided with a protection plate (8).
4. A fall arrest emergency protection device for use in a hoistway according to claim 1, characterized in that: the bottom and car (2) fixed connection of wire rope (21), mesh between drive gear (15) and screw drive piece (18), be connected through the belt between initiative runner (22) and driven runner (19).
5. A fall arrest emergency protection device for use in a hoistway according to claim 1, characterized in that: stop block (6) have four, and equally divide two sets of symmetries to install in the both sides of car (2), connecting rod (9) have four, and equally divide two sets of symmetries fixed mounting in the inside of elevartor shaft (1).
6. A fall arrest emergency protection device for use in a hoistway according to claim 1, characterized in that: arc-shaped mounting grooves (14) are formed in the two sides of the inner wall of the elevator shaft (1), and the arc-shaped mounting grooves (14) are matched with the specification and the size of the stop plate (10).
7. A fall arrest emergency protection device for use in a hoistway according to claim 1, characterized in that: the both sides of backup pad (27) all articulate there are carriage release lever (29), one side that backup pad (27) were kept away from in carriage release lever (29) articulates there is sliding block (30), slide bar (31) have been cup jointed to the inside of sliding block (30), second buffer spring (32) have been cup jointed to the outside of slide bar (31).
8. A fall arrest emergency protection device for use in a hoistway according to claim 7, wherein: the moving rods (29) are two, the two sliding blocks (30) are respectively positioned at the top and the bottom of the sliding rod (31), and the second buffer spring (32) is positioned between the two sliding blocks (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587845.7A CN112660958A (en) | 2020-12-29 | 2020-12-29 | Anti-falling emergency protection device used in elevator shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587845.7A CN112660958A (en) | 2020-12-29 | 2020-12-29 | Anti-falling emergency protection device used in elevator shaft |
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| CN112660958A true CN112660958A (en) | 2021-04-16 |
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| CN202011587845.7A Pending CN112660958A (en) | 2020-12-29 | 2020-12-29 | Anti-falling emergency protection device used in elevator shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084770A (en) * | 2021-11-23 | 2022-02-25 | 拉弗莱防坠落系统科技(苏州)有限公司 | Elevator car anti-falling device capable of avoiding falling stall |
-
2020
- 2020-12-29 CN CN202011587845.7A patent/CN112660958A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084770A (en) * | 2021-11-23 | 2022-02-25 | 拉弗莱防坠落系统科技(苏州)有限公司 | Elevator car anti-falling device capable of avoiding falling stall |
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Application publication date: 20210416 |
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