CN2875714Y

CN2875714Y - Dismountal tool for screw

Info

Publication number: CN2875714Y
Application number: CN 200620056026
Authority: CN
Inventors: 周伟; 王新明
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-03-06
Filing date: 2006-03-06
Publication date: 2007-03-07
Anticipated expiration: 2016-03-06

Abstract

The utility model relates to a bolt disassembly tool, which comprises a gripe and a pole connected to the gripe, a die head of processing outer screw thread arranged at the end of the pole. The utility model can disassemble the broken bolt on the operation trough expediently without destroying the structure of joint piece; the invention is simple in structure and can be operated conveniently.

Description

A kind of screw disassembling tool

Technical field

The utility model relates to a kind of hardware ﹠ tools, more particularly, relates to a kind of screw disassembling tool.

Background technology

Screw is widely used union piece, can easily connected piece be linked together, and for convenience detach.But owing to reasons such as not matching of the countertorque of screw quality, connected piece and screw operation tool, the operating groove (cross recess or flat recess) that head of screw takes place is sometimes beaten colored, can't dismantle by rotating screw, causes the dismounting situation of difficult.

For example, as shown in Figure 1 and Figure 2, in the most plate versions that adopt of communication apparatus, have spanner 2 on the veneer 1,, after spanner 2 is pulled and put in place during installation, also need use screw 3 fastening in order to satisfy the requirement of electromagnetic shielding.And because spatial constraints needs to adopt less screw.Under the normal condition, the installing/dismounting of screw 3 is no problem, but a few cases is arranged, because misoperation or instrument do not match, head of screw can be beaten flower, this screw 3 can't use existing screwdriver to dismantle when this piece veneer 1 has fault to pull out or to change this moment in the normal destroyed distortion of head of screw operating groove 31 (shown in Figure 3) (among Fig. 4 shown in 32).

The utility model content

The technical problems to be solved in the utility model is, a kind of screw disassembling tool is provided, and head is provided with threading die, by producing dismounting force moment, the ruined screw of a knockout screw operating groove in the tapping of head of screw cylindrical.

The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of screw disassembling tool, comprise handle and the bar that is connected on the handle, it is characterized in that: the die-head that also comprises the threading that is arranged on described boom end.

In screw disassembling tool described in the utility model, the screw die hand of spiral of described die-head is right-hand screw direction or left-hand screw direction.

In screw disassembling tool described in the utility model, the described screw die edge of a knife is a wedge angle at the front end of its hand of spiral.

In screw disassembling tool described in the utility model, described die-head is along uniform two groups, three groups of its inner peripherys or four groups of screw die.

In screw disassembling tool described in the utility model, described handle is cylindrical, and described bar is connected this cylindrical handle end.

In screw disassembling tool described in the utility model, described handle is a T shape or L shaped, and described bar is connected an end of this T shape or L shaped handle.

In screw disassembling tool described in the utility model, described bar is connected to described handle: described bar is inserted for the movable sleeve that can transmit moment of torsion with described handle with the fixedly connected or described bar of described handle and is connected.

Implement screw disassembling tool of the present utility model, its beneficial effect is:

1. can not destroy the connected piece structure and the ruined screw of disassembling section groove easily.

2. simple in structure, easy to use.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the structural representation of communication equipment cabinet.

Fig. 2 is the partial enlarged drawing of communication equipment cabinet.

Fig. 3 is the normal running groove schematic diagram of screw.

Fig. 4 is the destroyed operating groove schematic diagram of screw.

Fig. 5 is a kind of example structure schematic diagram of the utility model screw disassembling tool.

Fig. 6 is the A portion enlarged drawing of Fig. 5.

Fig. 7 is the front view of screw die port.

Fig. 8 is to use the schematic diagram of the utility model screw disassembling tool knockout screw.

The specific embodiment

Fig. 5 shows a kind of embodiment of the utility model screw disassembling tool.As shown in Figure 5, this screw disassembling tool comprises handle 5 and the bar 4 that is connected on the handle 5, and the die-head 6 (as shown in Figure 6) of threading is set in the end of bar 4.

As shown in Figure 6, die-head 6 is provided with the screw die structure of threading commonly used, and the hand of spiral of this screw die 61 can adopt right-hand screw direction (dismounting left-hand screw screw), also can adopt left-hand screw direction (dismounting right-hand screw screw).

As shown in Figure 7, for the benefit of screw die 61 is stung tightly with the cylindrical of screw, at the front end of its hand of spiral wedge angle 62 is set at the edge of a knife of screw die 61.

As shown in Figure 7, in the present embodiment, uniform on the die-head inner periphery four groups of screw die are set.In other embodiments, two groups or three groups of screw die also can uniformly be set.

In the present embodiment, handle 5 adopts cylindrical structural, and bar 4 is connected an end of this cylindrical handle 5.In other embodiments, handle 5 also can adopt T shape or L shaped, and bar 4 is connected an end of this T shape or L shaped handle.Certainly, handle 5 can also adopt other to be convenient to operate and can to produce the version of dismounting force moment.

In the present embodiment, bar 4 is fixedlyed connected with handle 5, in other embodiments, can adopt the movable sleeve that can transmit moment of torsion to insert syndeton, for example:

1, on the link of bar 4 key is set, the hole with corresponding keyway is set in handle 5 ends, both movable sleeves are inserted and are connected;

2 or the hole of band keyway is set on the link of bar 4, in the end of handle 5 corresponding fit key is set, both movable sleeves insert to connect;

3 or the link with bar 4 on be set to non-circular (as triangle, quadrangle, polygon or semicircle etc.), the hole of corresponding matching is set in handle 5 ends, both movable sleeves insert to connect or the like.

As shown in Figure 8, during use, die-head 6 is entangled the cylindrical of screw 3, and on handle 5, apply pressure (shown in the arrow B) slightly to screw 3 directions, simultaneously, along the direction rotation (shown in the arrow C) that screw 3 is got loose, die-head 6 promptly carries out mantle fiber on the head cylindrical of screw 3, produces the moment of knockout screw 3, if this moment is less than the needed moment of knockout screw, continue rotation and will produce bigger moment, can loosen a screw, disassemble up to this moment.

Claims

1, a kind of screw disassembling tool comprises handle and the bar that is connected on the handle, it is characterized in that: the die-head that also comprises the threading that is arranged on described boom end.

2, screw disassembling tool according to claim 1 is characterized in that: the screw die hand of spiral of described die-head is right-hand screw direction or left-hand screw direction.

3, screw disassembling tool according to claim 2 is characterized in that: the described screw die edge of a knife is a wedge angle at the front end of its hand of spiral.

4, screw disassembling tool according to claim 3 is characterized in that: described die-head is along uniform two groups, three groups of its inner peripherys or four groups of screw die.

5, according to the described screw disassembling tool of one of claim 1 to 4, it is characterized in that: described handle is cylindrical, and described bar is connected this cylindrical handle end.

6, according to the described screw disassembling tool of one of claim 1 to 4, it is characterized in that: described handle is a T shape or L shaped, and described bar is connected an end of this T shape or L shaped handle.

7, screw disassembling tool according to claim 5 is characterized in that: described bar is connected to described handle: described bar is inserted for the movable sleeve that can transmit moment of torsion with described handle with the fixedly connected or described bar of described handle and is connected.

8, screw disassembling tool according to claim 6 is characterized in that: described bar is connected to described handle: described bar is inserted for the movable sleeve that can transmit moment of torsion with described handle with the fixedly connected or described bar of described handle and is connected.