CN211419252U - Damping device at bottom of hypervelocity elevator sedan-chair - Google Patents

Abstract

The utility model belongs to the technical field of elevator shock absorption, in particular to a shock absorption device at the bottom of an ultra-high-speed elevator car, which comprises an elevator car, a bottom plate is welded at the bottom of the elevator cage, three loop bars are welded at the bottom of the bottom plate, a damping plate is nested at the bottom of the loop bars, a telescopic rod is clamped in an inner cavity of each loop bar, the telescopic rod penetrates through the damping plate, the safety airbag is arranged at the bottom of the safety airbag, when the speed limiter is started, the gas generator is driven to work, so that the safety air bag is quickly popped up, moreover, the elliptical safety air bag is designed, so that the problem of laceration and air leakage caused by direct contact of four corners with sharp surfaces on four sides of the elevator shaft is avoided, thereby realize that air bag and four side walls rub the speed reduction, cooperate integrative first reset spring to cushion the shock attenuation, reduce the problem emergence probability that the sudden violent shake that causes and then the potential safety hazard that leads to.

Description

Damping device at bottom of hypervelocity elevator sedan-chair

Technical Field

The utility model relates to an elevator shock attenuation technical field specifically is a damping device at bottom of hypervelocity elevator sedan-chair.

Background

At present, in order to meet the transportation requirement, an ultra-high-speed elevator is adopted for daily use, but in the using process of the elevator, most attention is paid to safety problems, when the force cannot be normally maintained due to the accidental breakage of a steel cable, the elevator has a risk of one section of accelerated descending, most of the existing elevators are additionally provided with a speed limiter and a safety tongs, but in the braking process, due to the inertia problem and the emergency, the positions of necks and the like of users are easily influenced, potential safety hazards easily occur, so that a car bottom damping device capable of improving the damping effect in the period is needed, and the elevator car bottom damping device with the existing application number of CN201821104200.1 is adopted, most of the elevator car bottom damping devices are normal buffer devices, face to emergency accidents, a safety airbag in the technical document is positioned on the upper side of a damping bottom plate and is easily influenced by devices such as a fixing frame when being popped up, resulting in insufficient deployment, which acts like and adds a spring that does not assist in the deceleration of the lift car itself, and so needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a damping device at bottom of hypervelocity elevator sedan-chair to how to make the elevator that provides in solving above-mentioned background art improve the shock attenuation effect meeting accident in this section of time to emergency braking, avoid the problem to people's potential safety hazard in the elevator.

In order to achieve the above object, the utility model provides a following technical scheme: a damping device at the bottom of an ultrahigh-speed elevator car comprises an elevator car body, wherein a bottom plate is welded at the bottom of the elevator car body, three loop bars are welded at the bottom of the bottom plate, a damping plate is nested at the bottom of each loop bar, a telescopic rod is clamped in an inner cavity of each loop bar and penetrates through the damping plate, a rubber plate is welded at the bottom of each telescopic rod, an airbag is clamped at the top of each rubber plate and is adhered to the bottom of the damping plate, two gas generators are fixed at the top of each damping plate through bolts and are connected with the airbags through guide pipes, a limiting block is welded at the top of each telescopic rod, a disc spring is sleeved at the top of each limiting block, a first restoring spring is nested on the outer wall of each telescopic rod and is located in the inner cavity of each loop bar, connecting columns are uniformly installed at the bottom of the inner cavity of the elevator car body, and a second restoring spring is sleeved on the outer wall of the connecting column, the top of the connecting column is connected with a supporting plate, a rubber buffer plate is bonded at the bottom of the supporting plate, a speed limiter is installed on the elevator cage, and the speed limiter is connected with a gas generator through a lead.

Preferably, air bag is oval-shaped air bag, just evenly bond on air bag's the outer wall has the rubber pad, just the top of rubber slab is seted up with air bag assorted draw-in groove, the air bag joint is in the draw-in groove, just the rubber slab bonds in the downside of shock attenuation board.

Preferably, the limiting block is a T-shaped limiting block, and the disc spring is sleeved on the outer ring at the top of the limiting block.

Preferably, the inner wall of the elevator cage is integrally formed with a limiting bulge matched with the supporting plate, and the supporting plate is clamped at the bottom of the limiting bulge.

Preferably, the damping plate is uniformly provided with through holes matched with the telescopic rods, the inner cavities of the through holes are welded with bearings, and the telescopic rods are inserted into the inner cavities of the bearings.

Preferably, the second restoring spring is a high-toughness restoring spring.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the utility model discloses a put the end installation with air bag, when the overspeed governor starts, drive gas generator work, thereby make air bag pop out fast, and through the design have oval-shaped air bag, the problem that four corners direct and four sides of elevartor shaft sharp face contact of avoiding leads to lacerating gas leakage takes place, thereby realize air bag and four sides walls rub and slow down, cooperate integrative first reset spring to cushion the shock attenuation, reduce the problem emergence probability of the potential safety hazard that acutely rocks and then lead to that suddenly causes;

2) the utility model discloses a be provided with first reset spring and dish spring, when air bag rubs, carry out the transmission of power through the rubber slab, realize that first reset spring and dish spring support the buffering of elevator railway carriage or compartment, avoid the poor problem of unsettled elevator railway carriage or compartment's bottom damping device in-service use effect to take place.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the airbag of the present invention.

In the figure: 1 elevator cage, 2 bottom plates, 3 loop bars, 4 damping plates, 5 telescopic rods, 6 limiting blocks, 7 disc springs, 8 first restoring springs, 9 safety airbags, 10 rubber plates, 11 supporting plates, 12 rubber buffer plates, 13 connecting columns, 14 second restoring springs and 15 gas generators.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a damping device for the car bottom of an ultra-high-speed elevator comprises an elevator car 1, wherein a bottom plate 2 is welded at the bottom of the elevator car 1, three loop bars 3 are welded at the bottom of the bottom plate 2, damping plates 4 are nested at the bottoms of the loop bars 3, the damping plates 4 are used for being fixed at the bottoms of the loop bars 3 in an extruding mode when rubber plates 10 are subjected to deceleration stress, so that airbags 9 are guided, extrusion on two sides is achieved in a protruding mode by matching with the elasticity of the airbags 9, further the airbags 9 are in frictional contact with walls on two sides, the buffering and damping effects are improved, telescopic rods 5 are clamped in inner cavities of the loop bars 3, the telescopic rods 5 complete recovery of the rubber plates 10 under the auxiliary action of first restoring springs 8 and disc springs 7, and the first restoring springs 8 and the disc springs 7 can normally play an auxiliary damping effect through transmission of the rubber plates 10 when the airbags 9 are subjected to stress, the telescopic rod 5 penetrates through the damping plate 4, the rubber plate 10 is welded at the bottom of the telescopic rod 5, the safety airbag 9 is clamped at the top of the rubber plate 10, the safety airbag 9 is adhered to the bottom of the damping plate 4, the safety airbag 9 is rapidly ejected out through the work of the gas generator 15 when the speed limiter works, so that the safety airbag 9 is in contact with the wall of the elevator shaft, the speed reduction and damping effects are improved, the two gas generators 15 are fixed at the top of the damping plate 4 through bolts, a large amount of gas is needed for buffering the elevator cage 1 with large load capacity, the inflation speed of the safety airbag 9 is improved through the plurality of gas generators 15, the gas generators 15 are connected with the safety airbag 9 through guide pipes, the limiting block 6 is welded at the top of the telescopic rod 5, the disc spring 7 is sleeved at the top of the limiting block 6, and is limited and fixed through the disc spring 7, the improvement is to the supporting effect of loop bar, nested first reset spring 8 that has on the outer wall of telescopic link 5, and first reset spring 8 is located the inner chamber of loop bar 3 for kick-back rubber slab 10, spliced pole 13 is evenly installed to elevator railway carriage or compartment 1's inner chamber bottom, just the second reset spring 14 has been cup jointed on spliced pole 13's the outer wall, the top of spliced pole 13 is connected with backup pad 11, just the bottom of backup pad 11 bonds and has rubber buffer board 12, and when slowing down, second reset spring 14 is in compression state always, under further overweight state, plays and offsets the effect, improves the cushioning effect. The elevator cage 1 is provided with a speed limiter, and the speed limiter is connected with a gas generator 15 through a lead.

Wherein the safety airbag 9 is an elliptical safety airbag, rubber pads are uniformly bonded on the outer wall of the safety airbag 9, a clamping groove matched with the safety airbag 9 is formed in the top of the rubber plate 10, the safety airbag 9 is clamped in the clamping groove, the rubber plate 10 is bonded on the lower side of the damping plate 4, the friction resistance is improved, and the scratch and air leakage are avoided, the limiting block 6 is a T-shaped limiting block, the disc spring 7 is sleeved on the outer ring of the top of the limiting block 6, the disc spring 7 is guided to be used, limiting protrusions matched with the supporting plate 11 are integrally formed on the inner wall of the elevator cage 1, the supporting plate 11 is clamped at the bottoms of the limiting protrusions, so that the supporting plate 11 and the second restoring spring 14 are in a compressed state and used for offsetting the force during emergency braking and facilitating damping, through holes uniformly matched with the telescopic rod 5 are formed on the damping plate 4, and the welding has the bearing in the inner chamber of through-hole, just telescopic link 5 pegs graft in the inner chamber of bearing, realizes the direction, second reset spring 14 is high tenacity reset spring, improves second reset spring 14's life.

The working principle is as follows: the utility model discloses a when the overspeed governor starts, aerify fast gasbag 9 through gas generator 15 and pop out, then with the wall contact of elevartor shaft, improve the friction dynamics, and carry out the transmission dynamics through gasbag 9, make first reset spring 8 and dish spring 7 also participate in the shock attenuation atress simultaneously, improve the shock attenuation effect, and through being provided with second reset spring 14 that is in compression state always, make under the overweight state of emergency braking, the dynamics that backup pad 11 received is offset, improve the shock attenuation effect, the impaired probability of reduction personnel takes place.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

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 (6)

1. The utility model provides a damping device at bottom of hypervelocity elevator sedan-chair, includes elevator car (1), bottom plate (2) have been welded to the bottom of elevator car (1), three loop bar (3) have been welded to the bottom of bottom plate (2), its characterized in that: the bottom of loop bar (3) is nested has shock attenuation board (4), joint has telescopic link (5) in the inner chamber of loop bar (3), just shock attenuation board (4) is run through to telescopic link (5), rubber slab (10) have been welded to the bottom of telescopic link (5), air bag (9) have been connected to the top joint of rubber slab (10), just air bag (9) bond in the bottom of shock attenuation board (4), the top of shock attenuation board (4) is fixed with two gas generator (15) through the bolt, just gas generator (15) are connected with air bag (9) through the pipe, the top welding of telescopic link (5) has stopper (6), dish spring (7) has been cup jointed at the top of stopper (6), nested first reset spring (8) have on the outer wall of telescopic link (5), and first reset spring (8) are located the inner chamber of loop bar (3), spliced pole (13) are evenly installed to the inner chamber bottom of elevator railway carriage or compartment (1), just cup jointed the second on the outer wall of spliced pole (13) and reset spring (14), the top of spliced pole (13) is connected with backup pad (11), just the bottom of backup pad (11) bonds and has rubber buffer board (12), install the overspeed governor on elevator railway carriage or compartment (1), and the overspeed governor passes through the wire and is connected with gas generator (15).

2. The ultra-high speed elevator car bottom damping device according to claim 1, characterized in that: air bag (9) are oval-shaped air bag, just evenly bond on the outer wall of air bag (9) has the rubber pad, just the top of rubber slab (10) is seted up with air bag (9) assorted draw-in groove, air bag (9) joint is in the draw-in groove, just rubber slab (10) bond the downside at shock attenuation board (4).

3. The ultra-high speed elevator car bottom damping device according to claim 1, characterized in that: the limiting block (6) is a T-shaped limiting block, and the disc spring (7) is sleeved on the outer ring at the top of the limiting block (6).

4. The ultra-high speed elevator car bottom damping device according to claim 1, characterized in that: the elevator car is characterized in that a limiting bulge matched with the supporting plate (11) is integrally formed on the inner wall of the elevator car (1), and the supporting plate (11) is clamped at the bottom of the limiting bulge.

5. The ultra-high speed elevator car bottom damping device according to claim 1, characterized in that: through holes matched with the telescopic rods (5) are uniformly formed in the damping plate (4), bearings are welded in inner cavities of the through holes, and the telescopic rods (5) are inserted into inner cavities of the bearings.

6. The ultra-high speed elevator car bottom damping device according to claim 1, characterized in that: the second restoring spring (14) is a high-toughness restoring spring.

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