CN102745568A

CN102745568A - Anti-falling mechanism of elevator

Info

Publication number: CN102745568A
Application number: CN2012102476155A
Authority: CN
Inventors: 段胜国
Original assignee: SUZHOU LIUSH MACHINERY EQUIPMENT CO Ltd
Current assignee: SUZHOU LIUSH MACHINERY EQUIPMENT CO Ltd
Priority date: 2012-07-17
Filing date: 2012-07-17
Publication date: 2012-10-24
Anticipated expiration: 2032-07-17
Also published as: CN102745568B

Abstract

The invention discloses an anti-falling mechanism of an elevator. The elevator comprises an orientation assembly, a driving assembly, a traction assembly and an elevation platform, wherein the anti-falling mechanism is arranged between the traction assembly and the elevation platform; the orientation assembly comprises four vertically arranged orientation columns; the traction assembly comprises traction chains which are arranged along each orientation column respectively; the anti-falling mechanism comprises anti-falling rotary blocks which are hinged at one end of the traction chains through connecting pieces; the middle and lower parts of the rotary blocks are connected with the elevation platform; a plurality of clamping ports are distributed on the orientation columns along the length direction; the lower ends of the rotary blocks are provided with protuberance parts; and when one or more traction chains are broken, under the action of eccentric self-weights of the rotary blocks, the upper parts of the rotary blocks turn along the direction close to the elevation platform, so that protuberance parts at the lower parts are inserted into the clamping port at corresponding current positions, i.e., the elevation platform is positioned at a current position, so that the elevation platform is prevented from tipping over, and the safety of operation personnel on the elevation platform is protected.

Description

Hoist falling-proof mechanism

Technical field

the present invention relates to a kind of hoist falling-proof mechanism.

Background technology

When spray paint in the large-scale workpiece surface to online production on paint line of spraying paint; Adopt the paint spray booth that is provided with lifting table often; So that operating personal stands on this lifting table workpiece is sprayed paint; Mostly traditional lifting table is to draw up-down through the conduction chain that is separately positioned on four jiaos; When fracture suddenly takes place in one or more in these conduction chains, whole lifting table is tumbled and bring potential safety hazard, even the life of threat operating personal.

Summary of the invention

the purpose of this invention is to provide a kind of can be with the hoist falling-proof mechanism of lifting table when fracture takes place conduction chain due to current location.

For solving the problems of the technologies described above, the present invention adopts following technical scheme:

A kind of hoist falling-proof mechanism, this elevator comprises guidance set, driven unit, traction component and lifting table, this safety dropping prevent mechanism is arranged between described traction component and the described lifting table,

Described guidance set comprises that vertical projection constitutes the guidepost of four vertical directions settings of rectangle,

Described traction component comprises the conduction chain that is provided with along each described guidepost, and the top of each described guidepost is provided with corresponding one by one and each described conduction chain mating gear,

Described driven unit comprises the drive motor that drives each described gear rotation,

this safety dropping prevent mechanism comprises the swivel block that is loaded on each described conduction chain lower end through attaching parts; Be hinged between described attaching parts and the described swivel block; The middle and lower part of described swivel block is hinged on the described lifting table; The lower end of described swivel block has a protrusion; Being distributed with a plurality of bayonet sockets on along its length on each described guidepost, is the demarcation line with the straight line at two hinge-points places on the described swivel block, near the deadweight of a side of described lifting table greater than deadweight away from a side of described lifting table; When fracture takes place the described conduction chain on top, turn on one's side to one of described lifting table place then described protrusion inserted in the described bayonet socket on the corresponding current described guidepost in the top of described swivel block.

preferably, described driven unit comprises each the described drive motor that is arranged on both sides, on the output shaft of two described gears of homonymy with the described drive motor that is installed in cooresponding homonymy.

preferably; Described swivel block is triangular in shape, and the hinge-point that the hinge-point of described attaching parts and described swivel block is positioned at an one of which angle, described lifting table and described swivel block is positioned at the direction of another angle, the described lifting table of the 3rd angle and extends.

preferably, the other end of each described conduction chain is furnished with clump weight respectively.

preferably, the outer setting of described conduction chain has superposed fixed blade guard and can slide the flexible blade guard of setting with respect to described fixed blade guard.

preferably, the center of described lifting table offers the gathering hole that supplies workpiece to pass, and is provided with the protection fence around the described gathering hole.

preferably, be provided with can be along the roller of its rolling in the position of corresponding each described guidepost on the described lifting table.

beneficial effect of the present invention is: off-centre installs anti-fall swivel block additional between conduction chain and lifting table; When fracture takes place in one or a plurality of conduction chain; Thereby swivel block can insert in corresponding each bayonet socket at guidepost the lower end rotating under the effect of eccentric weight; Thereby lifting table on the current position, has been prevented effectively that promptly lifting table from tumbling, protected the personal safety of the operating personal on it.

Description of drawings

Accompanying drawing 1 is the schematic side view of elevator of the present invention;

Accompanying drawing 2 is the A place enlarged diagram (under the state of lifting table by the conduction chain traction) in the accompanying drawing 1;

Accompanying drawing 3 is through the view of swivel block in the bayonet socket of current location on the guidepost to lifting table in the accompanying drawing 2;

Accompanying drawing 4 is the schematic top plan view of elevator of the present invention;

accompanying drawing 5 is the structural representation of the swivel block in the hoist falling-proof of the present invention mechanism.

In accompanying drawing: 1, lifting table; 2, guidepost; 3, conduction chain; 4, gear; 5, drive motor; 6, attaching parts; 7, swivel block; 8, bayonet socket; 9, clump weight; 10, fixed blade guard; 11, flexible blade guard; 12, gathering hole; 13, protection fence; 14, protrusion.

The specific embodiment

Below in conjunction with embodiment shown in the drawings the present invention is made following detailed description:

shown in accompanying drawing 1 to accompanying drawing 5, a kind of hoist falling-proof mechanism, this elevator comprises guidance set, driven unit, traction component and lifting table 1; This safety dropping prevent mechanism is arranged between traction component and the lifting table 1; Guidance set comprises that vertical projection constitutes the guidepost 2 of four vertical directions settings of rectangle, and traction component comprises the conduction chain 3 that is provided with along each guidepost 2, and the top of each guidepost 2 is provided with corresponding one by one and each conduction chain 3 mating gear 4; Driven unit comprises the drive motor 5 that drives each gear 4 rotations; This safety dropping prevent mechanism comprises the swivel block 7 that is loaded on each conduction chain 3 lower ends through attaching parts 6, is hinged between attaching parts 6 and the swivel block 7, and the middle and lower part of swivel block 7 is hinged on the lifting table 1; The lower end of swivel block 7 has a protrusion 14; Being distributed with a plurality of bayonet sockets 8 on along its length on each guidepost 2, is the demarcation line with the straight line at two hinge-points places on the swivel block 7, near the deadweight of a side of lifting table 1 greater than deadweight away from a side of lifting table 1; When fracture takes place in the conduction chain 3 on top; The top of swivel block 7 is to the rollover at lifting table 1 place then make in the bayonet socket 8 that protrusion 14 inserts on the corresponding current guidepost 2, and the upper end is stuck in the limit portion of lifting table 1, and driven unit comprises each drive motor 5 that is arranged on both sides; A kind of optimal way for drive motor 5 is: on the output shaft of two gears 4 with the drive motor 5 that is installed in cooresponding homonymy of homonymy; Under the situation that satisfies the power requirement, saved cost, the energy savings of mechanism like this, the swivel block 7 that adopts in the present embodiment is triangular in shape; It also can be other shapes such as rhombus, if satisfy condition swivel block 7 can: 1., the bottom has and the suitable protrusion 14 of the bayonet socket of guidepost 28; 2., the deadweight with the straight line both sides at the hinge-point of lifting table 1 and attaching parts 6 place does not wait respectively, and near the deadweight of a side of lifting table 1 greater than deadweight away from a side of lifting table 1.The hinge-point of attaching parts 6 and swivel block 7 is positioned at the direction extension that an one of which angle, lifting table 1 and the hinge-point of swivel block 7 are positioned at another angle, the 3rd angle lifting table 1; The other end of each conduction chain 3 is furnished with clump weight 9 respectively; The outer setting of conduction chain 3 has superposed fixed blade guard 10 and can slide the flexible blade guard 11 of setting with respect to fixed blade guard 10; The center of lifting table 1 offers the gathering hole 12 that supplies workpiece to pass; Be provided with protection fence 13 around the gathering hole 12, be provided with can be along the roller of its rolling in the position of corresponding each guidepost 2 on the lifting table 1.

When use ; When one or several generation fracture suddenly in each conduction chain 3; Because the deadweight of swivel block 7 both sides is different; Change to a rollover at lifting table 1 place the upper end of swivel block 7, thereby the protrusion 14 of its lower end is inserted on the guideposts 2 in the cooresponding bayonet socket 8 of current location, has just effectively stopped the phenomenon that lifting table 1 is tumbled, protected the life security of operating personal on the lifting table 1.

the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims

1. hoist falling-proof mechanism, it is characterized in that: this elevator comprises guidance set, driven unit, traction component and lifting table, this safety dropping prevent mechanism is arranged between described traction component and the described lifting table,

Described guidance set comprises that vertical projection constitutes the guidepost of four vertical directions settings of rectangle,

Described driven unit comprises the drive motor that drives each described gear rotation,

2. hoist falling-proof according to claim 1 mechanism; It is characterized in that: described driven unit comprises each the described drive motor that is arranged on both sides, on the output shaft of two described gears of homonymy with the described drive motor that is installed in cooresponding homonymy.

3. hoist falling-proof according to claim 1 mechanism; It is characterized in that: described swivel block is triangular in shape, and the hinge-point that the hinge-point of described attaching parts and described swivel block is positioned at an one of which angle, described lifting table and described swivel block is positioned at the direction of another angle, the described lifting table of the 3rd angle and extends.

4. hoist falling-proof according to claim 1 mechanism, it is characterized in that: the other end of each described conduction chain is furnished with clump weight respectively.

5. hoist falling-proof according to claim 1 mechanism is characterized in that: the outer setting of described conduction chain has superposed fixed blade guard and can slide the flexible blade guard of setting with respect to described fixed blade guard.

6. hoist falling-proof according to claim 1 mechanism is characterized in that: the center of described lifting table offers the gathering hole that supplies workpiece to pass, and is provided with the protection fence around the described gathering hole.

7. according to any described hoist falling-proof mechanism in the claim 1 to 6, it is characterized in that: be provided with can be along the roller of its rolling in the position of corresponding each described guidepost on the described lifting table.