CN102862913A

CN102862913A - Automatic opening and closing fixture

Info

Publication number: CN102862913A
Application number: CN2012103756473A
Authority: CN
Inventors: 董富祥; 潘云峰; 郭永良
Original assignee: Zhejiang Rongfeng Lifting Machinery Manufacturing Co ltd
Current assignee: Zhejiang Rongfeng Lifting Machinery Manufacturing Co ltd
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2013-01-09

Abstract

The invention belongs to the field of crane equipment machinery and particularly relates to an automatic opening and closing fixture. The automatic opening and closing fixture comprises a caliper, a shell-shaped sleeve, a hanging plate and a connecting rod. The caliper is arranged in a crossing manner, the caliper and the shell-shaped sleeve are integrally hinged by a first pin, one end of the connecting rod is hinged to the caliper by a third pin, and the other end of the connecting rod is hinged to the hanging plate through another third pin. A guide rod is vertically fixed to the top of the shell-shaped sleeve, a trapezoidal column is fixed onto the guide rod, and a sliding sleeve which can move up and down freely is sleeved on the guide rod between the trapezoidal column and the shell-shaped sleeve. A bushing is fixed on the lower portion of the hanging plate, ear plates are welded to two sides of the bushing, a pair of hook-type sliders is hinged to the ear plates through second pins, and the guide rod is mounted in the bushing and can move up and down in the bushing. The whole fixture opens and closes without being driven by external force.

Description

A kind of automatic shutter anchor clamps

Technical field

The invention belongs to the crane assemblies mechanical field, be specifically related to a kind of automatic shutter anchor clamps.

Background technology

Hoisting crane belongs to a kind of of elevator machinery, be a kind ofly circulate, the machinery of intermittent moment.A working cycle comprises: load-engaging device is mentioned article from getting thing ground, then is moved horizontally to the appointed place and falls article, then carries out counter motion, makes the load-engaging device reposition, in order to circulate next time.

Anchor clamps are to obtain and fixed object as hoisting crane important composition parts, and whole anchor clamps are suspended on the crane hook, can finish the gripping of object along with the lifting of suspension hook.The anchor clamps of prior art, when the gripping object, the folding of anchor clamps clamp will use external force to drive, and the cost of manufacture or the expense that so increase equipment are artificial.

In view of this, the inventor invents a kind of automatic shutter anchor clamps, and this case produces thus.

Summary of the invention

The object of the present invention is to provide a kind of automatic shutter anchor clamps, make whole anchor clamps can automatically finish after hanging the gripping of getting object, laying ground and automatically open anchor clamps along with the lifting of suspension hook, need not external force and drive.

In order to solve the problems of the technologies described above, the invention provides following technical scheme:

A kind of automatic shutter anchor clamps, comprise clamp, shellfish jacket, boatswain chair and connecting rod, described clamp are intersection setting, and with the first bearing pin clamp and shellfish jacket are articulated in one, described connecting rod one end is hinged by the 3rd bearing pin and clamp, and the other end is hinged by another the 3rd bearing pin and boatswain chair; Described shellfish jacket top vertically is fixed with a guide rod, is fixed with trapezoidal column on the guide rod, and the guide rod between trapezoidal column and shellfish jacket is overlapping a slip cap that can only easy on and off slides; Described boatswain chair bottom is fixed with sleeve pipe, and the sleeve pipe both sides are welded with otic placode, and otic placode is hinged with a pair of hook slide block by the second bearing pin, is equipped with described guide rod in the sleeve pipe, and described guide rod can move up and down in sleeve pipe.

Further, described trapezoidal column lower plane diminishes along with diameter and is inclined upwardly.

Further, described slip cap is the folded buckle structure of laterally zygomorphic basin type, and the lower plane of middle flange portion becomes large along with diameter and is inclined upwardly.

Automatic shutter anchor clamps of the present invention have the following advantages:

One, the on-off action of whole anchor clamps is to drive without external force, need not motor drive mechanism or hydraulic gear or artificial help.

Two, anchor clamps are safe and reliable, and cost of manufacture is cheap, easy for installation, easy maintenance.

Below in conjunction with drawings and the specific embodiments invention is done and to be described in further detail.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is lateral plan of the present invention.

Label declaration:

Hook slide block 1 trapezoidal column 2 slip caps 3 connecting rods 4

Clamp 5 first bearing pins 6 shellfish jackets 7 guide rods 8

The second bearing pin 9 otic placodes 10 sleeve pipes 11 the 3rd bearing pin 12

Boatswain chair 13 suspension hooks 14

Specific embodiment

As shown in Figure 1, 2, what the present invention disclosed is a kind of automatic shutter anchor clamps, comprise clamp 5, shellfish jacket 7, boatswain chair 13 and connecting rod 4, described clamp 5 are forked type and are arranged in shellfish jacket 7 inboards, and with the first bearing pin 6 with clamp 5 and shellfish jacket 7 hinged one, clamp 5 ends are hinged with connecting rod 4 by the 3rd bearing pin 12, and boatswain chair 13 adopts the 3rd bearing pin 12 hinged with connecting rod 4; The plane is fixed with a guide rod 8 on the described shellfish jacket 7, is fixed with trapezoidal column 2 on the guide rod 8, and the guide rod between trapezoidal column 2 and shellfish jacket 7 is overlapping a slip cap 3 that can only easy on and off slides; Described boatswain chair 13 bottoms are fixed with sleeve pipe 11, and sleeve pipe 11 both sides are welded with otic placode 10, and otic placode 10 is hinged with a pair of hook slide block 1 by the second bearing pin 9, are equipped with described guide rod 8 in the sleeve pipe 11, and it can move up and down in sleeve pipe 11.

Further, described trapezoidal column 2 lower planes diminish along with diameter and are inclined upwardly.Described slip cap 3 is the folded buckle structure of laterally zygomorphic basin type, and the lower plane of middle flange portion becomes large along with diameter and is inclined upwardly.

Next in conjunction with shown in Figure 1, specifically narrate the principle of automatic shutter anchor clamps:

One, suspension hook 14 descends, and gets on the object until clamp 5 bottoms are supported in to hang, and clamp 5 were subject to upwards thrust when suspension hook 14 continued to descend again, and hook slide block 1 hook end moves down and slips into the conical surface under slip cap 3 flanges, and the aperture that this moment, clamp 5 opened is maximum.

Two, suspension hook 14 rises, hook slide block 1 hook end promotes to move on to ladder type post 2 on the slip cap 3 to be close to, originally the clamp 5 that were locked in certain aperture position unlock, when suspension hook 14 continued to rise, hook slide block 1 hook end conical surface under slip cap 3 flanges skidded off, and hook slide block 1 hook end is no longer hooked by ladder type post 2, putting in clamp 5 tops this moment causes lower jaw closed, until clamp object, this moment, weight can translation or aerial lifting, and slip cap slides into planimetric position on the shellfish jacket 73 times simultaneously.

Three, when clamp 5 are put into weight on the ground, along with suspension hook 14 descends, hook slide block 1 also descends simultaneously, the hook end slips into the interstitial site between hook slide block 1 and the slip cap 3, hang 14 hooks this moment and rise, the hook end hook of hook slide block 1 is lived trapezoidal column 2, and clamp 5 just are locked in the state of originally opening.

Four, suspension hook 14 continues to descend, and then repeats first step, enters next cycle event.

Above-described embodiment and graphic and non-limiting the present invention, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present invention to its suitable variation of doing.

Claims

1. automatic shutter anchor clamps, it is characterized in that: comprise clamp, shellfish jacket, boatswain chair and connecting rod, described clamp are intersection setting, and with the first bearing pin clamp and shellfish jacket are articulated in one, described connecting rod one end is hinged by the 3rd bearing pin and clamp, and the other end is hinged by another the 3rd bearing pin and boatswain chair; Described shellfish jacket top vertically is fixed with a guide rod, is fixed with trapezoidal column on the guide rod, and the guide rod between trapezoidal column and shellfish jacket is overlapping a slip cap that can only easy on and off slides; Described boatswain chair bottom is fixed with sleeve pipe, and the sleeve pipe both sides are welded with otic placode, and otic placode is hinged with a pair of hook slide block by the second bearing pin, is equipped with described guide rod in the sleeve pipe, and described guide rod can move up and down in sleeve pipe.

2. automatic shutter anchor clamps according to claim 1, it is characterized in that: described trapezoidal column lower plane diminishes along with diameter and is inclined upwardly.

3. automatic shutter anchor clamps according to claim 1 and 2 is characterized in that: described slip cap is the folded buckle structure of laterally zygomorphic basin type, and the lower plane of middle flange portion becomes large along with diameter and is inclined upwardly.