阅读说明：本技术 重压过下降缓冲电梯 (Buffer elevator for heavy pressure over-descending ) 是由 张昱晨 芦卯荣 于 2020-07-01 设计创作，主要内容包括：本发明公开了一种重压过下降缓冲电梯,包括设置在电梯井内的轿厢,所述轿厢的底部设置有滑动杆、滑块和缓冲杆,所述滑动杆的侧边安装有楔块,所述滑块位于滑动杆的侧边,且邻近楔块,所述滑块的滑动方向垂直于滑动杆,两根所述缓冲杆同轴铰接在轿厢的底部,两根所述缓冲杆的其中一端分别位于滑块的两侧,另外一端均设置有缓冲轮,所述电梯井的内壁上设置有缓冲块,所述缓冲块自上而下逐渐加宽,两个所述缓冲轮分别位于缓冲块的两侧。本发明通过合理的结构设计能够使电梯受到的重力越大,缓冲力度越大,进而减小电梯下降的高度,减少系统的负荷,提高了电梯的使用便捷性和寿命。(The invention discloses a heavy-load over-descending buffering elevator which comprises a car arranged in an elevator shaft, wherein the bottom of the car is provided with a sliding rod, a sliding block and buffering rods, wedge blocks are arranged on the side edges of the sliding rod, the sliding block is positioned on the side edge of the sliding rod and is adjacent to the wedge blocks, the sliding direction of the sliding block is perpendicular to the sliding rod, the two buffering rods are coaxially hinged to the bottom of the car, one end of each buffering rod is positioned on each side of the sliding block, the other end of each buffering rod is provided with a buffering wheel, a buffering block is arranged on the inner wall of the elevator shaft and gradually widened from top to bottom, and the two buffering wheels are positioned on each side of the buffering block. The elevator buffer device has the advantages that through reasonable structural design, the larger the gravity borne by the elevator is, the larger the buffer force is, the descending height of the elevator is further reduced, the load of a system is reduced, and the use convenience and the service life of the elevator are improved.)

1. The utility model provides a heavy pressure falls buffering elevator which characterized in that: including setting up the car in the elevator shaft, the bottom of car is provided with slide bar, slider and buffer lever, the voussoir is installed to the side of slide bar, the slider is located the side of slide bar, and is close to the voussoir, the slip direction perpendicular to slide bar of slider, two the coaxial bottom at the car of articulating of buffer lever, two wherein one end of buffer lever is located the both sides of slider respectively, and one end all is provided with the buffering wheel in addition, be provided with the buffer block on the inner wall of elevartor shaft, buffer block top-down widens gradually, two the buffering wheel is located the both sides of buffer block respectively.

2. The heavy over-the-counter descent buffer elevator of claim 1, wherein: the buffer block includes at least two widening amplitudes, the upper widening amplitude being smaller than the lower widening amplitude.

3. The heavy over-ride down buffer elevator of claim 2, wherein: the buffer block includes first buffering portion and second buffering portion, the contained angle of two sides of first buffering portion is 20 ~ 45, the second buffering portion continues to set up the end at first buffering portion, the contained angle of two sides of second buffering portion is 90 ~ 135.

4. The heavy over-the-counter descent buffer elevator of claim 1, wherein: buffer beam includes carousel, preceding buffer beam one, preceding buffer beam two and back buffer beam, two the coaxial bottom that articulates at the car of carousel of buffer beam, preceding buffer beam one sets up in one of them one side of carousel, and keeps away from gradually the preceding buffer beam one on two carousels, preceding buffer beam two sets up the end of buffer beam one in the front, and two preceding buffer beam two on the preceding buffer beam one are close to gradually, the back buffer beam sets up in one other side of carousel, and keeps away from gradually the back buffer beam on two carousels, the buffer wheel sets up the end at back buffer beam.

5. The heavy over-the-counter descent buffer elevator of claim 4, wherein: and an elastic part is arranged on the outer side of the second front buffer rod.

6. The heavy over-the-counter descent buffer elevator of claim 4, wherein: the slider is provided with a triangular head, and the tip part of the triangular head is positioned between the two front buffer rods II.

7. The heavy over-the-counter descent buffer elevator of claim 6, wherein: the end part of the slide block opposite to the triangular head is provided with a guide surface, and the guide surface is positioned on the coming side of the wedge block.

8. The heavy over-the-counter descent buffer elevator of claim 7, wherein: the wedge surface of the wedge block is provided with a holding surface parallel to the moving direction of the wedge block, and the holding surface is propped against the rear end of the sliding block.

9. The heavy over-the-counter descent buffer elevator of claim 1, wherein: the bottom of car is provided with mounting panel and pivot, the mounting panel cladding is in the bottom of buffer beam, the pivot is located the mounting panel, the buffer beam articulates on the car through the pivot.

10. The heavy over-the-counter descent buffer elevator of claim 1, wherein: the bottom of the car door of car is provided with the connecting plate, it has the connecting rod to articulate on the connecting plate, the other one end of connecting rod articulates the tip at the slide bar, the bottom of car is provided with the spout, the slide bar slides and sets up in the spout.

Technical Field

The invention relates to an elevator, in particular to a heavy-load over-descending buffering elevator.

Background

The elevator is a special device essential in production and life. The elevator is lifted or lowered by a motor pulling a suspension cable to raise or lower a car in the elevator shaft. A typical elevator is stabilized against the suspension ropes alone when entering or exiting people or loading or unloading goods. But because slings are typically long, more range of elasticity accumulates over such a length. When the elevator is heavily loaded, the elevator can descend for too much distance, which can cause height difference between the elevator car and the floor, if a heavy object is transported out of the elevator, the higher threshold needs to be overcome, time and labor are wasted, and potential safety hazards exist.

Disclosure of Invention

The invention aims to solve the technical problem of providing a heavy-load over-descending buffering elevator, which can ensure that the larger the gravity borne by the elevator is, the larger the buffering force is, further reduce the descending height of the elevator, reduce the load of a system, and improve the use convenience and the service life of the elevator through reasonable structural design.

In order to solve the technical problem, the invention provides a heavy-load over-descending buffering elevator which comprises a car arranged in an elevator shaft, wherein the bottom of the car is provided with a sliding rod, a sliding block and buffering rods, wedge blocks are arranged on the side edge of the sliding rod, the sliding block is positioned on the side edge of the sliding rod and is adjacent to the wedge blocks, the sliding direction of the sliding block is perpendicular to the sliding rod, the two buffering rods are coaxially hinged to the bottom of the car, one end of each buffering rod is positioned on each side of the sliding block, the other end of each buffering rod is provided with a buffering wheel, the inner wall of the elevator shaft is provided with a buffering block, the buffering blocks are gradually widened from top to bottom, and the two buffering wheels are positioned on each side of the.

In a preferred embodiment of the present invention, it is further included that the buffer block includes at least two widening steps, the widening step at the upper step being smaller than the widening step at the lower step.

In a preferred embodiment of the present invention, the buffer block further includes a first buffer portion and a second buffer portion, an included angle between two side surfaces of the first buffer portion is 20 to 45 °, the second buffer portion is continuously disposed at a terminal of the first buffer portion, and an included angle between two side surfaces of the second buffer portion is 90 to 135 °.

In a preferred embodiment of the invention, the buffer rods further comprise turntables, a first front buffer rod, a second front buffer rod and a rear buffer rod, the turntables of the two buffer rods are coaxially hinged at the bottom of the car, the first front buffer rod is arranged on one side of the turntables, the first front buffer rods on the two turntables are gradually far away, the second front buffer rod is arranged at the tail end of the first front buffer rod, the second front buffer rods on the first two front buffer rods are gradually close to each other, the rear buffer rod is arranged on the other side of the turntables, the rear buffer rods on the two turntables are gradually far away, and the buffer wheels are arranged at the tail end of the rear buffer rod.

In a preferred embodiment of the present invention, an elastic member is disposed outside the front bumper bar ii.

In a preferred embodiment of the present invention, the slide block further includes a triangular head, and a tip end portion of the triangular head is located between the two front buffer rods.

In a preferred embodiment of the present invention, the end of the slider opposite to the triangular head is provided with a guide surface, and the guide surface is located on the coming side of the wedge block.

In a preferred embodiment of the present invention, the wedge surface of the wedge is provided with a holding surface parallel to the moving direction of the wedge, and the holding surface is pressed against the rear end of the sliding block.

In a preferred embodiment of the invention, the elevator further comprises a mounting plate and a rotating shaft arranged at the bottom of the car, the mounting plate is covered at the bottom of the buffer rod, the rotating shaft is positioned in the mounting plate, and the buffer rod is hinged on the car through the rotating shaft.

In a preferred embodiment of the invention, the bottom of the car door of the car is provided with a connecting plate, the connecting plate is hinged with a connecting rod, the other end of the connecting rod is hinged with the end part of a sliding rod, the bottom of the car is provided with a sliding groove, and the sliding rod is arranged in the sliding groove in a sliding manner.

The invention has the beneficial effects that:

according to the heavy-load over-descending buffering elevator, after a car of the elevator reaches a corresponding floor, the sliding rod is moved, so that the wedge blocks are pushed against the sliding blocks; the sliding block is inserted between the two buffer rods, the two buffer rods are far away from each other at the end, and the other ends of the two buffer rods are close to each other, so that the buffer wheel is clamped on the buffer block; in the elastic range of the buffer rod, the lower the height of the lift car is, the tighter the buffer wheel is clamped, the better the buffer effect is, in the bearing range of the elevator, the over-falling of the elevator can be well avoided, the load of a sling and a driving source is reduced, and the service life of the elevator is prolonged; meanwhile, the buffer wheel and the buffer block are used, so that hard contact can be avoided, and the service life is long.

Drawings

Fig. 1 is a schematic front view of a heavy over-ride down buffer elevator in accordance with a preferred embodiment of the present invention;

fig. 2 is a schematic bottom view of a heavy over-ride down buffer elevator;

FIG. 3 is a schematic sectional view taken along line A-A;

FIG. 4 is a schematic sectional view along the direction B-B.

The reference numbers in the figures illustrate:

10-elevator shaft, 11-sliding rail, 20-elevator car, 21-elevator car door, 30-connecting plate, 31-connecting rod, 32-sliding rod, 33-sliding chute, 34-wedge block, 35-retaining surface, 40-sliding block, 41-triangular head, 42-guiding surface, 50-mounting plate, 51-rotating shaft, 52-rotating disc, 53-front buffer rod I, 54-front buffer rod II, 55-rear buffer rod, 56-buffer wheel, 57-elastic piece, 60-buffer block, 61-first buffer part and 62-second buffer part.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.