CN2794757Y

CN2794757Y - Pulling device

Info

Publication number: CN2794757Y
Application number: CN 200520025759
Authority: CN
Inventors: 胡治国
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-08
Filing date: 2005-05-08
Publication date: 2006-07-12
Anticipated expiration: 2015-05-08

Abstract

The utility model relates to a pulling device. The utility model is formed by that a connecting seat is provided with an auxiliary connecting arm which is matched with one connecting arm of connecting arms of the connecting seat; a spiral seat is provided with an auxiliary fixing arm which is matched with one connecting arm of connecting arms of the spiral seat; one hooking claw of hooking claws is dismountable and is assembled with the auxiliary connecting arm and the auxiliary fixing arm respectively; through rotation shaped screw caps, the connecting seat is linked to drag the auxiliary connecting arm and the connecting arms which are corresponding to the auxiliary connecting arm so that the connected hooking claws are respectively linked to carry out pivoting pendulum, and the circumference of a workpiece is fetched through hooking; the workpiece is butted by a supporting stop part. Consequently, when the workpiece is installed at a position with small space and no easy operation, the utility model has the advantages of real-time disassembly and replacement and convenient operation of disassembly or assembly of workpieces according to a user's desired environment.

Description

Drawbench

Technical field

The utility model relates to a kind of drawbench, relates in particular to a kind of workpiece that makes as being installed in small space and not during easy-operating position, can doing the real-time action that changes, and make things convenient for the user to carry out the drawbench of workpiece removal or assembly operation according to the situation of needs.

Background technology

As shown in Figure 5, be existing drawbench, its be applied to that general workpiece changes or assembling operation in, in order to take out the workpiece that is provided with because of tight fit, and the outer peripheral edges of workpiece are fixed, with the pushing tow axle workpiece is taken out.

Its structure mainly comprises a pedestal 7, this pedestal 7 wears a screw rod 8 by the center, this pedestal 7 is established three fixed arms 71 by the center to overhanging, and the below correspondence that is positioned at this pedestal 7 is provided with a Connection Block 9, these Connection Block 9 corresponding each fixed arms 71 are stretched respectively and are provided with three linking arms 91, and each linking arm 91 end is respectively equipped with a hook 92.This screw rod 8 is a sheathed spring 82 above this pedestal 7, and these spring 82 top spiral shells are provided with a knob 81, when this knob 81 of turn with this spring 82 of pushing tow, make this each hook 92 of pedestal 7 interlocks hook up workpiece.

During operation, pull hook 92 gripping workpiece earlier, and adjust this knob 81, so that the strength that clips of three hooks 92 to be provided, and replace out the axle of workpiece with complete operation with this screw rod 8 to the appropriate location.

Yet aforesaid drawbench is in narrow space as running into the location of workpiece, then must cause three hooks 92 to collude simultaneously to workpiece, or wherein a hook 92 is pind down by near the structure of workpiece, and can't normally clip, therefore must change the drawbench that another has two hooks 92 at once, the operation when being engaged in small space.The drawbench of at this moment essential three hooks of first removal, and be replaced by the drawbench of two hooks 92, but time-consuming really and trouble in the middle of the process of changing, moreover the user is for for a rainy day, also need to add simultaneously the drawbench of three hooks 92 and the drawbench of two hooks 92, this has often taken many accommodation spaces, also improves the purchase cost of instrument simultaneously greatly.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the defective that existing drawbench exists, and provide a kind of drawbench, it makes workpiece as being installed in small space and not during easy-operating position, can do the real-time action that changes, and make things convenient for the user to carry out workpiece removal or assembly operation according to the situation of needs.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of drawbench comprises: a screw rod, a driving mechanism, an actuating mechanism; It is characterized in that: an end of described screw rod has an operate portions and away from a top part of this operate portions; Described driving mechanism comprises a body and a special-shaped nut, several adjutages that this body has a head and extends in the same way away from this head, the head of this body connects one and wears groove, this abnormity nut is to be located at this to wear groove, and should be located at contiguous this operate portions position of this screw rod by abnormity nut spiral shell, this screw rod stretches through simultaneously, and this wears groove is replaced workpiece for the top part of this screw rod axle center; Described actuating mechanism comprises an a connecting seat and a spiral shell seat, this Connection Block is this top part position of vicinity that is arranged in this screw rod, and this Connection Block is terminal affixed with each adjutage respectively, and this Connection Block is provided with several linking arms away from outside the stretching at interval in center, one of them of each linking arm that cooperates this Connection Block, and be provided with an auxiliary linking arm at this Connection Block; Described spiral shell seat spiral shell is located at the position between the head of this body and this Connection Block of this screw rod, and this spiral shell seat cooperates each linking arm, be provided with several fixed arms and outwards at interval stretch away from the center, cooperate one of them of each fixed arm of this spiral shell seat, this spiral shell seat is provided with an auxiliary fixed arm; Each fixed arm length of this spiral shell seat is each the linking arm length greater than this Connection Block, and wherein one of them of aforementioned each hook is detachable, and reaches this auxiliary mutual winding of fixed arm with this auxiliary linking arm respectively; Each fixed arm end of described spiral shell seat interconnects for a hook respectively, and the stage casing of each hook is provided with a movement arm, and each movement arm is that each linking arm with this Connection Block interconnects.

Aforesaid drawbench, wherein each hook has a hook portion away from the end in addition of each fixed arm.

Aforesaid drawbench, wherein movement arm is made up of two lamellar bodies.

Aforesaid drawbench is wherein worn groove and is provided with a C shape clasp for being pivoted described special-shaped nut.

The utility model should the abnormity nut by turn, and this Connection Block of interlock draws this auxiliary linking arm and to assisting the linking arm of linking arm, and the hook pivot pendulum that interlock connected respectively to be colluding the periphery of getting workpiece, and replaces the axle center of workpiece with this top part.

The utility model makes workpiece as being installed in small space and not during easy-operating position, can doing the real-time action that changes, and make things convenient for the user to carry out workpiece removal or assembly operation according to the situation of needs.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the combining structure schematic diagram of first embodiment of the present utility model

Fig. 2 is that the jaw of first embodiment of the present utility model hooks up schematic diagram

Fig. 3 is the three-dimensional appearance schematic diagram of second embodiment of the present utility model

Fig. 4 is that the jaw of second embodiment of the present utility model hooks up schematic diagram

Fig. 5 is the combining structure schematic diagram of existing drawbench

The specific embodiment

Seeing also Fig. 1, is the selected example structure of the utility model shown in the figure.

Present embodiment comprises:

One screw rod 1, one end have the top part 12 that an operate portions 11 reaches away from this operate portions 11;

One driving mechanism 2, comprise a body 21 and a special-shaped nut 22, this body 21 has a head 211 and away from this head 211 and three adjutages 23 extending in the same way, wherein the head 211 of this body 21 connects one and wears groove 212, this is worn groove 212 upper limbs and is provided with the annular groove (not shown), for a C shape clasp 221 inlay cards, wear in the groove 212 and make this abnormity nut 22 be located at this, and should be located at this screw rod 1 contiguous these operate portions 11 positions by abnormity nut 22 spiral shells, this screw rod 1 stretches through simultaneously, and this wears groove 212 is replaced workpiece for the top part 12 of this screw rod 1 axle center;

One actuating mechanism 3 comprises an a connecting seat 31 and a spiral shell seat 32;

This Connection Block 31 is these top part 12 positions of vicinity that are arranged in this screw rod 1, and this Connection Block 31 terminal affixed with each adjutage 23 respectively, and this Connection Block 31 is outwards stretched at interval away from the center and is provided with three linking arms 311,312,313;

These spiral shell seat 32 spiral shells are located on this screw rod 1, and position between the head 211 of this body 21 and this Connection Block 31, this spiral shell seat 32 cooperates each linking arm 311,312,313, and being provided with three fixed arms 321,322,323 away from outside the stretching at interval in center, each fixed arm 321,322,323 length of this spiral shell seat 32 are each linking arm 311,312,313 length greater than this Connection Block 31;

Each fixed arm 321,322,323 end of this spiral shell seat 32 interconnect for an end of a hook 4 respectively, each hook 4 has a hook portion 41 away from the end in addition of each fixed arm 321,322,323, and be provided with a movement arm 42 in the stage casing of each hook 4, wherein this movement arm 42 is made up of two lamellar bodies, and the in addition end of each movement arm 42 is that each linking arm 311,312,313 with this Connection Block 31 interconnects;

A wherein linking arm 312 that cooperates this Connection Block 31, and be provided with an auxiliary linking arm 314 at this Connection Block 31; A wherein fixed arm 322 that cooperates this spiral shell seat 32, and be provided with an auxiliary fixed arm 324 at this spiral shell seat 32, wherein one of them of each hook 4 is detachable, and reaches this auxiliary fixed arm 324 mutual windings with this auxiliary linking arm 314 respectively.

When operation clips workpiece, see also Fig. 1 and Fig. 2, turn should abnormity nut 22, and this Connection Block 31 of interlock is relative close with this spiral shell seat 32, and then the hook portion 41 pivots pendulum that draws each hook 4 to be colluding the periphery of getting workpiece 5, and replaces workpiece with the top part 12 of this screw rod 1, again the operate portions 11 of this screw rod 1 of turn, and then push against the axle that this top part 12 is butted on workpiece 5, and take out workpiece 5.

Therefore, the utility model hooks up workpiece 5 applicable to the drawbench with three hooks 4, with certain taking-up workpiece 5.

Certainly, also can to run into workpiece 5 set spaces on the implementation equally be narrow and small to the utility model or other mechanism's resistance shelves are arranged.See also Fig. 3 and Fig. 4, it is second embodiment of the present utility model, wherein the user finds that the space that workpiece is installed is narrow and small, or find and to be suitable for after the drawbench comparison through installing three hooks 4, then can be with wherein two hook 4 removals in these three hooks 4, a hook 4 reaches this auxiliary linking arm 314 windings with this auxiliary fixed arm 324 respectively and select for use wherein.

Should abnormity nut 22 by turn, and this spiral shell seat 32 of interlock and this Connection Block 31 relatively near and draw this auxiliary linking arm 314 and linking arm 312 to assisting linking arm 314, hook 4 pivots that interlock connected are respectively put and are colluded the periphery of getting workpiece 5 with the hook portion 41 of hook 4, and this operate portions 11 of turn is replaced the axle center of workpiece 5 to promote this top part 12.

Therefore when the user in that to run into the operating space narrow and small, or use when being equiped with the drawbench of three hooks 4, can be replaced with drawbench immediately with two hooks 4, not only lowered the equipment purchasing cost, and dwindle outside the benefit that takes up room, also allow the user can be, at once at the situation of required use with the maximum working efficiency of minimum time performance, and select three hooks 4 for use, or two hooks 4 carry out work.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

In sum, the utility model is on structural design, use practicality and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicality, the regulation that meets relevant novel patent requirement is so mention application in accordance with the law.

Claims

1, a kind of drawbench comprises: a screw rod, a driving mechanism, an actuating mechanism;

It is characterized in that:

One end of described screw rod has an operate portions and away from a top part of this operate portions;

Described driving mechanism comprises a body and a special-shaped nut, several adjutages that this body has a head and extends in the same way away from this head, the head of this body connects one and wears groove, this abnormity nut is to be located at this to wear groove, and should be located at contiguous this operate portions position of this screw rod by abnormity nut spiral shell, this screw rod stretches through simultaneously, and this wears groove is replaced workpiece for the top part of this screw rod axle center;

Described actuating mechanism comprises an a connecting seat and a spiral shell seat, this Connection Block is this top part position of vicinity that is arranged in this screw rod, and this Connection Block is terminal affixed with each adjutage respectively, and this Connection Block is provided with several linking arms away from outside the stretching at interval in center, one of them of each linking arm that cooperates this Connection Block, and be provided with an auxiliary linking arm at this Connection Block;

Described spiral shell seat spiral shell is located at the position between the head of this body and this Connection Block of this screw rod, and this spiral shell seat cooperates each linking arm, be provided with several fixed arms and outwards at interval stretch away from the center, cooperate one of them of each fixed arm of this spiral shell seat, this spiral shell seat is provided with an auxiliary fixed arm; Each fixed arm length of this spiral shell seat is each the linking arm length greater than this Connection Block, and wherein one of them of aforementioned each hook is detachable, and reaches this auxiliary mutual winding of fixed arm with this auxiliary linking arm respectively;

Each fixed arm end of described spiral shell seat interconnects for a hook respectively, and the stage casing of each hook is provided with a movement arm, and each movement arm is that each linking arm with this Connection Block interconnects.

2, drawbench according to claim 1 is characterized in that described each hook has a hook portion away from the end in addition of each fixed arm.

3, drawbench according to claim 1 is characterized in that described movement arm is made up of two lamellar bodies.

4, drawbench according to claim 1 is characterized in that the described groove of wearing is provided with a C shape clasp for being pivoted described special-shaped nut.