CN111302182A

CN111302182A - Elevator with mechanical anti-falling function

Info

Publication number: CN111302182A
Application number: CN202010263243.XA
Authority: CN
Inventors: 陶壮壮; 原野; 李涛涛
Original assignee: Individual
Current assignee: Shaanxi Zongheng Intelligent Heavy Industry Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-06-19
Anticipated expiration: 2040-04-07
Also published as: CN111302182B

Abstract

The invention discloses a lifter with a mechanical anti-falling function, which comprises a base, an upright post and an anti-falling mechanism, wherein the base is provided with a support; prevent weighing down the mechanism and include rod cover, movable rod and swinging pin, wherein the rod cover is fixed on the base, the movable rod slides and wears to establish at the rod cover, and the one end of movable rod is passed through the second haulage rope and is connected with the lift haulage rope, and the other end is fixed with first stopper, is connected with first spring between first stopper and the rod cover, the swinging pin rotates to be installed on the base and junction between them is provided with the torsional spring, sets up the draw-in groove with swinging pin looks adaptation on the stand, and the one end of swinging pin is connected with first stopper through first haulage rope. The anti-falling mechanism is composed of the rod sleeve, the movable rod, the swing pin and the like, can play an anti-falling role when the lifting traction rope is broken, and the trigger of the anti-falling mechanism is generated by pure mechanical transmission, so that the anti-falling mechanism is more reliable to use, and the running safety of equipment is improved.

Description

Elevator with mechanical anti-falling function

Technical Field

The invention relates to the field of machinery, in particular to a lifter with a mechanical anti-falling function.

Background

Lifting functional equipment exists in various industries, some equipment is used for lifting objects (such as raw materials, containers and the like), some equipment is used for lifting personnel, and in any equipment, if traction force is suddenly lost in high altitude, rapid descending can be generated, so that personal or property loss is brought.

The anti-falling mechanism is a structure applied to lifting equipment, most of the existing anti-falling mechanisms utilize monitoring of electronic elements (such as limit switches) to achieve triggering of an anti-falling function, certain use limitations are achieved, the electronic elements are prone to failure, and therefore the anti-falling mechanism fails, and safety is low.

Disclosure of Invention

The invention aims to provide an elevator with a mechanical anti-falling function, so as to solve the problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a lifter with a mechanical anti-falling function comprises a base, a stand column, an anti-falling mechanism and a lifting traction rope for drawing the base, wherein the base is connected to the stand column in a sliding manner and can move up and down; prevent weighing down the mechanism and include rod cover, movable rod and swinging pin, wherein the rod cover is fixed on the base, the movable rod slides and wears to establish at the rod cover, and the one end of movable rod is passed through the second haulage rope and is connected with the lift haulage rope, and the other end is fixed with first stopper, is connected with first spring between first stopper and the rod cover, and first spring housing is established in the periphery of movable rod, the swinging pin rotates to be installed on the base and junction between them is provided with the torsional spring, set up on the stand with the draw-in groove of swinging pin looks adaptation, and the one end of swinging pin is connected with first stopper through first haulage rope.

In a further aspect: the first traction rope and the second traction rope are made of stainless steel materials.

In a further aspect: the stand is including laminating fixed first cylinder and second cylinder, offers the spout with first cylinder looks adaptation on the base, and first cylinder slip card is established in the spout.

In a further aspect: the cross section of the sliding groove is in an inverted trapezoid shape.

In a further aspect: embedding holes are uniformly distributed in the sliding groove, and balls are arranged in the embedding holes.

In a further aspect: still include the deceleration mechanism, the deceleration mechanism includes that the activity sets up in the activity of base agrees with the piece, the fixed piece that agrees with that sets up in the stand and sets up the adjustable fender between the piece is agreed with in the activity and the fixed piece that agrees with, wherein the activity agrees with the piece and slides and insert and establish in the fixed frame that is fixed in the base, is connected with the second spring between fixed frame and the activity agrees with the piece, the fixed piece that agrees with is provided with a plurality ofly and lays along the length direction equidistance of stand, adjustable fender fixes on the crane, and crane elastic connection is in the base and can be along vertical direction round trip movement, and the top of crane is fixed with the go.

In a further aspect: the bottom of crane is fixed with the lifter, is fixed with the lifter on the base and wants the complex diaphragm, and the lifter slides and runs through the diaphragm, is connected with the third spring between diaphragm and the crane, and the periphery of lifter is located to the third spring cover, and the bottom of lifter still is fixed with the second stopper.

Compared with the prior art, the invention has the following beneficial effects:

the anti-falling mechanism composed of the rod sleeve, the movable rod, the swing pin and the like is arranged, so that the anti-falling mechanism can play an anti-falling role when the lifting traction rope is broken, and the trigger of the anti-falling mechanism is generated by pure mechanical transmission, so that the anti-falling mechanism is more reliable to use, and the running safety of equipment is improved; through setting up the speed reduction mechanism that comprises parts such as movable contract piece, fixed contract piece and adjustable fender, can utilize the continuous flexible consumption that carries out base decline potential energy of movable contract piece when the lift haulage rope breaks to play the effect of speed reduction, the cooperation prevents weighing down the setting of mechanism, makes the base can stop the tenesmus in the time as short as possible, further improves the security of equipment operation.

Drawings

Fig. 1 is a schematic front view of an elevator with a mechanical fall prevention function.

Fig. 2 is a back structure schematic diagram of the elevator with the mechanical anti-falling function.

Fig. 3 is an enlarged structural diagram of a in fig. 2.

Fig. 4 is a schematic diagram of the matching of a rod sleeve and a movable rod in the elevator with the mechanical anti-falling function.

Fig. 5 is a schematic structural diagram of a base in the elevator with mechanical fall prevention function.

Notations for reference numerals: 1-base, 11-sliding groove, 111-ball, 2-upright post, 21-first column, 22-second column, 221-clamping groove, 3-lifting traction rope, 4-anti-falling mechanism, 41-rod sleeve, 42-movable rod, 43-first limiting block, 44-first spring, 45-first traction rope, 46-swinging pin, 47-torsion spring, 48-second traction rope, 51-movable wedge, 52-fixed wedge, 53-fixed frame, 54-second spring, 551-connecting ring, 552-lifting frame, 553-lifting rod, 554-transverse plate, 555-second limiting block, 556-third spring and 56-movable baffle.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

Example 1

Referring to fig. 1 to 5, in an embodiment of the present invention, an elevator with a mechanical anti-falling function includes a base 1, a column 2, an anti-falling mechanism 4, and a lifting traction rope 3 for pulling the base 1, wherein the base 1 is slidably connected to the column 2 and can move up and down; the anti-falling mechanism 4 comprises a rod sleeve 41, a movable rod 42 and a swing pin 46, wherein the rod sleeve 41 is fixed on the base 1, the movable rod 42 is slidably arranged on the rod sleeve 41, one end of the movable rod 42 is connected with the lifting traction rope 3 through a second traction rope 48, the other end of the movable rod 42 is fixed with a first limiting block 43, a first spring 44 is connected between the first limiting block 43 and the rod sleeve 41, the first spring 44 is sleeved on the periphery of the movable rod 42, the swing pin 46 is rotatably arranged on the base 1, a torsion spring 47 is arranged at the joint of the first limiting block and the lifting traction rope, a clamping groove 221 matched with the swing pin 46 is arranged on the upright post 2, one end of the swing pin 46 is connected with the first limiting block 43 through a first traction rope 45, in the normal lifting process, under the action of the lifting traction rope 3, the first limiting block 43 is abutted against the rod sleeve 41, the first spring 44 is compressed, and meanwhile, the first limiting block 43 pulls the swing pin, the lifting traction rope is separated from the clamping groove 221, normal lifting of the base 1 cannot be influenced, when the lifting traction rope 3 is broken, the first limiting block 43 moves towards the direction far away from the rod sleeve 41, the swinging pin 46 loses traction force, and swings under the action of the torsion spring 47 to stretch into the clamping groove 221, so that falling prevention is achieved.

First haulage rope 45 and second haulage rope are stainless steel material and make, guarantee effective life.

The concrete sliding connection structure between base 1 and stand 2 does not add the restriction, and in this embodiment, stand 2 is including laminating fixed first cylinder 21 and second cylinder 22, offers the spout 11 with first cylinder 21 looks adaptation on the base 1, and first cylinder 21 slip card is established in spout 11.

Further, the cross section of the sliding groove 11 is in an inverted trapezoid shape.

Still further, the spout 11 is provided with the embedding hole in the equipartition, is provided with ball 111 in the embedding hole to can reduce the lift resistance between first cylinder 21 and the spout 11, make the lift of base 1 more smooth and easy.

In summary, in the embodiment, the falling prevention mechanism 4 composed of the rod sleeve 41, the movable rod 42, the swing pin 46 and the like is arranged, so that the falling prevention function can be achieved when the lifting traction rope 3 is broken, and the falling prevention mechanism 4 is triggered by pure mechanical transmission, so that the falling prevention mechanism is more reliable to use, and the running safety of the equipment is improved.

Example 2

The embodiment of the invention expands the functions on the basis of the embodiment 1, and specifically comprises the following steps:

the anti-falling mechanism 4 can stop the base 1 completely after being triggered, and in order to shorten the time required by the stop of the base 1, in this embodiment, the anti-falling mechanism further comprises a speed reducing mechanism, the speed reducing mechanism comprises a movable wedge 51 movably arranged on the base 1, a fixed wedge 52 fixedly arranged on the upright post 2, and a movable baffle 56 arranged between the movable wedge 51 and the fixed wedge 52, wherein the movable wedge 51 is slidably inserted into a fixed frame 53 fixed on the base 1, a second spring 54 is connected between the fixed frame 53 and the movable wedge 51, the fixed wedge 52 is provided with a plurality of blocks and equidistantly arranged along the length direction of the upright post 2, the movable baffle 56 is fixed on a 552 lifting frame, the lifting frame 552 is elastically connected to the base 1 and can move back and forth along the vertical direction, and a connecting ring 551 is fixed on the top of the lifting frame 552, the connecting ring 551 is fixed on the periphery of the lifting traction rope 3 in a sleeved mode, in the normal lifting process, due to the effect of the lifting traction rope 3, the movable baffle 56 is located at a high position, so that the movable wedge 51 is blocked, when the lifting traction rope 3 is broken, the lifting frame 552 can generate elasticity to descend, so that the movable baffle 56 is driven to move downwards to contact with the blocking of the movable wedge 51, the movable wedge 51 moves towards the direction close to the fixed wedge 52 under the effect of the second spring 54 and is in contact with the fixed wedge 52, in the descending process of the base 1, the movable wedge 51 can continuously contract, so that the descending potential energy of the base 1 is consumed, and the speed reduction effect is achieved.

The elastic connection structure between the lifting frame 552 and the base 1 is not limited, in this embodiment, a lifting rod 553 is fixed at the bottom of the lifting frame 552, a transverse plate 554 which the lifting rod 553 wants to cooperate is fixed on the base 1, the lifting rod 553 slides to penetrate through the transverse plate 554, a third spring 556 is connected between the transverse plate 554 and the lifting frame 552, the third spring 556 is sleeved on the periphery of the lifting rod 553, a second limiting block 555 is further fixed at the bottom of the lifting rod 553, and in a normal state, under the action of the lifting traction rope 3, the second limiting block 555 can be contacted with the transverse plate 554, so that a limiting effect is achieved, and the lifting rod 553 is prevented from being disengaged from the transverse plate 554.

In summary, in the present embodiment, by providing the speed reduction mechanism composed of the movable wedge 51, the fixed wedge 52, the movable baffle 56, and the like, when the elevating traction rope 3 is broken, the base 1 can be lowered by the continuous expansion and contraction of the movable wedge 51, thereby performing the speed reduction function, and the falling of the base 1 can be stopped in as short a time as possible by the provision of the fall prevention mechanism, thereby further improving the safety of the operation of the apparatus.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A lift with a mechanical anti-falling function comprises a base (1), an upright post (2), an anti-falling mechanism (4) and a lifting traction rope (3) for drawing the base (1), wherein the base (1) is connected to the upright post (2) in a sliding manner and can move up and down;

it is characterized in that the anti-falling mechanism (4) comprises a rod sleeve (41), a movable rod (42) and a swinging pin (46), wherein the rod sleeve (41) is fixed on the base (1), the movable rod (42) is slidably arranged on the rod sleeve (41), one end of the movable rod (42) is connected with the lifting traction rope (3) through a second traction rope (48), the other end is fixed with a first limiting block (43), a first spring (44) is connected between the first limiting block (43) and the rod sleeve (41), the first spring (44) is sleeved on the periphery of the movable rod (42), the swing pin (46) is rotatably installed on the base (1), a torsion spring (47) is arranged at the joint of the swing pin and the base, a clamping groove (221) matched with the swing pin (46) is formed in the upright post (2), and one end of the swing pin (46) is connected with the first limiting block (43) through a first traction rope (45).

2. The lift with mechanical fall arrest function according to claim 1, characterized in that the first traction rope (45) and the second traction rope are made of stainless steel material.

3. The elevator with the mechanical anti-falling function according to claim 1, wherein the upright column (2) comprises a first column body (21) and a second column body (22) which are fixedly attached to each other, a sliding groove (11) matched with the first column body (21) is formed in the base (1), and the first column body (21) is slidably clamped in the sliding groove (11).

4. The lift with mechanical fall arrest function according to claim 3, characterized in that the chute (11) has an inverted trapezoidal cross-section.

5. The elevator with the mechanical anti-falling function according to claim 4, characterized in that the sliding groove (11) is provided with embedding holes, and the embedding holes are provided with balls (111).

6. The elevator with the mechanical anti-falling function according to any one of claims 1 to 5, further comprising a speed reducing mechanism, wherein the speed reducing mechanism comprises a movable wedge (51) movably arranged on the base (1), a fixed wedge (52) fixedly arranged on the upright post (2), and a movable baffle (56) arranged between the movable wedge (51) and the fixed wedge (52), wherein the movable wedge (51) is slidably inserted into a fixed frame (53) fixed on the base (1), a second spring (54) is connected between the fixed frame (53) and the movable wedge (51), the fixed wedge (52) is provided with a plurality of blocks and arranged at equal intervals along the length direction of the upright post (2), the movable baffle (56) is fixed on a lifting frame (552), and the lifting frame (552) is elastically connected to the base (1) and can move back and forth along the vertical direction, the top of the lifting frame (552) is fixed with a connecting ring (551), and the connecting ring (551) is sleeved and fixed on the periphery of the lifting traction rope (3).

7. The elevator with the mechanical anti-falling function according to claim 6, wherein a lifting rod (553) is fixed at the bottom of the lifting frame (552), a cross plate (554) which is matched with the lifting rod (553) is fixed on the base (1), the lifting rod (553) slides and penetrates through the cross plate (554), a third spring (556) is connected between the cross plate (554) and the lifting frame (552), the third spring (556) is sleeved on the periphery of the lifting rod (553), and a second limiting block (555) is further fixed at the bottom of the lifting rod (553).