CN2597150Y

CN2597150Y - Adjustable wrench

Info

Publication number: CN2597150Y
Application number: CNU022917446U
Authority: CN
Inventors: 胡文琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-16
Filing date: 2002-12-16
Publication date: 2004-01-07
Anticipated expiration: 2012-12-16

Abstract

The utility model belongs to a hand tool and relates to a continuously turning monkey wrench. The wrench includes a large spanning mouth articulated by a rotating shaft, a handle, a return spring arranged between the large spanning mouth and the handle, a worm shaft, a return spring of a worm member, a small spanning mouth and a worm. The utility model is characterized in that: the worm shaft is a limit shaft which is arranged in a holding hole in a sliding way; the worm and the worm member return spring are arranged on the limit shaft; a worm shaft retaining baffle is arranged on the handle at the outer side end of the limit shaft. The purpose of the utility model is to limit the worm on the worm shaft and is realized through the shift and the replacement of the worm shaft. So, the worm holding hole has small requirement; the receding angle is small and the torsion is strong; the wrench is small, light and is material-saving; furthermore, the clearance is small, and the wrench opening is hard to get large during the continuous turning process; the nut or bolt is hard to be damaged and the skid is hard to occur.

Description

The adjustable wrench of winning in succession

Technical field

The utility model belongs to hand tools, relates to a kind of adjustable wrench of winning in succession.

Background technology

The disclosed adjustable wrench of winning in succession of Chinese patent 99206967.X, be utilize the jail, worm screw locating convex block top be located on the worm screw external handle can be behind the worm screw that slides on the axle could twisting.The worm screw locating convex block must insert in the worm screw placement hole, and the advance and retreat angle is big, and the worm screw placement hole is big, and the volume of the adjustable wrench of winning in succession is also greatly necessary otherwise torsion is poor, the consumption raw material; Gap between worm screw locating convex block and worm screw is bigger, otherwise collision top jail very easily can not reset the worm screw locating convex block, can not twisting, particularly become big very easily gradually constantly pulling mouth in the process of twisting continuously, and twist bad nut or bolt, even skid.

Summary of the invention

At above problem, the purpose of this utility model provides little, the adjustable wrench of winning in succession that angle is little and torsion is strong of advancing and retreat of a kind of worm screw placement hole requirement.

A kind of adjustable wrench of winning in succession, comprise with gyroaxis hinged pull greatly mouthful and handle, establish be contained in pull greatly mouthful and handle between return spring, worm shaft, worm screw member return spring, pull mouthful and worm screw for a short time, it is characterized in that: worm shaft is a limit shaft, sliding fitting in the placement hole, worm screw and worm screw member return spring are established and are contained on the limit shaft, are provided with the worm shaft positioning baffle on the handle of limit shaft outboard end.Limit shaft is meant the axle that can play position-limiting action to worm screw, even worm screw can be limited the axle that it slides rotating on the axle on axle.

When win in succession adjustable wrench twisting nut or bolt turn round to certain angle, handle and pull greatly mouthful can be with the gyroaxis pin joint will establish be contained in pull greatly mouthful and handle between return spring stretch or compression is opened both, and drive the worm shaft positioning baffle be located on the worm shaft outboard end handle and break away from the position location, make to pull for a short time mouthful can be under the effect of nut or bolt diagonal-size to drive worm shaft and move to compress or stretch and establish the diagonal angle that the worm screw member return spring that is contained on the worm shaft opens and walk around nut or bolt by spacing worm screw on worm shaft; When returning back to the opposite side of nut or bolt, for a short time pull mouthful under the effect of worm screw member return spring along with worm shaft and spacing on worm shaft the worm screw return and reset, the worm shaft positioning baffle under the effect of return spring along with handle with folding of pulling greatly mouthful and resetting, push up firm worm shaft, the large and small mouth of pulling just can tightly clip nut or bolt, just can continue twisting.

Obviously, the purpose of this utility model is by worm screw is spacing on worm shaft, and utilizes the displacement of worm shaft and reset to drive the worm screw displacement and reset and realize continuous twisting.So the requirement of worm screw placement hole is little, the advance and retreat angle is little and torsion is strong, spanner is small and exquisite and light, saves raw material; And the gap is little, and it is not variable big to pull mouth in the process of constantly continuous twisting, is difficult for twisting bad nut or bolt, and difficult generation is skidded.

Description of drawings

Fig. 1 is a structural representation of the present utility model,

Fig. 2 be a kind of A-A of Fig. 1 to cutaway view,

Fig. 3 is that the another kind of A-A of Fig. 1 is to cutaway view.

Among the figure: (1) pulls mouth for a short time, and (2) pull mouth greatly, (3) gyroaxis, (4) worm screw, (5) worm shaft, (6) worm screw member return spring, (7) worm shaft positioning baffle, (8) return spring, (9) pull a mouthful locating convex block greatly, (10) sliding pin, (11) slot, (12) handle, (13) worm screw member return spring baffle ring, (14) snap ring.

The specific embodiment

Describe in detail below in conjunction with drawings and Examples:

Among the figure be two kinds and utilize the step axle that worm screw (4) is carried out the spacing adjustable wrench of winning in succession, promptly worm shaft (5) is the adjustable wrench of winning in succession of step axle.Its worm screw member return spring (6) and worm screw (4) are set on the size axle of step axle (5).The step axle is meant the axle of plurality of sections different-diameter, and what adopt among the figure all is two sections step axles.

In Fig. 2, be set with the worm screw member return spring baffle ring (13) that abuts on the big axial end on the little axle of step axle (5), and the spacing snap ring (14) of worm screw member return spring baffle ring is housed on the little axle of worm screw member return spring baffle ring (13) end.Worm screw (4) is to utilize the step end face of step axle and spacing the going up at step axle (5) of corresponding edge of worm screw placement hole to rotate.Worm screw member return spring (6) acts on the step axle (5) by worm screw member return spring baffle ring (13) and snap ring (14).When pulling mouth under the effect of nut or bolt diagonal-size, worm screw (4) can be under the drive of pulling mouthful (1) for a short time, utilize the step end face of step axle (5) to promote step axle (5) sliding transfer and compress worm screw member return spring (6), make and pull mouth and open and walk around nut or bolt diagonal angle; When returning back to the opposite side of nut or bolt, under the effect of worm screw member return spring (6), step axle (5) slip return, and utilize the step end face of step axle (5) to promote worm screw (4) return makes and pulls mouthful (a 1) return for a short time and clip nut or bolt.

Simple in structure for making, be convenient to install, reduce cost, Fig. 3 only establishes the dress spacing snap ring of worm screw (14) on the terminal little axle of worm screw (4), worm screw member return spring (6) can be acted directly on the worm screw (4).When pulling mouth under the effect of nut or bolt diagonal-size, the step end face of worm screw (4) ejection step axle (5) under the drive of pulling mouthful (1) for a short time makes step axle (5) sliding transfer and is shifted, and compression worm screw member return spring (6) makes and pulls mouth and open and walk around nut or bolt diagonal angle; When returning back to the opposite side of nut or bolt, worm screw member return spring (6) acts on by worm screw (4) and establishes the spacing snap ring of worm screw (14) that is contained on the terminal little axle of worm screw (4) and make step axle (5) slip return, simultaneously step axle (5) utilizes its step end face to make worm screw (4) thereupon return and return, and drives and pull mouthful (1) return for a short time and clip nut or bolt.

For making the same twisting continuously of the adjustable wrench of winning in succession with existing spanner, on the outer lower end of the projection of pulling mouthful (2) greatly, be provided with and pull a mouthful locating convex block (9) greatly, the ratio that is provided with symmetry on the recess two sides near the handle (12) of pulling a mouthful locating convex block (9) inboard is greatly pulled the slot (11) that a mouthful locating convex block (9) grows a sliding pin position at least greatly, and sliding pin (10) is housed in slot (11).

Claims

1, a kind of adjustable wrench of winning in succession, comprise with hinged the pulling mouthful (2) and a handle (12) greatly, establish and be contained in the return spring (8) pulled greatly between mouthful (2) and handle (12), worm shaft (5), worm screw member return spring (6), pull mouth (1) and a worm screw (4) for a short time of gyroaxis (3), it is characterized in that: worm shaft (5) is a limit shaft, sliding fitting in the placement hole, worm screw (4) and worm screw member return spring (6) are established and are contained on the limit shaft, are provided with worm shaft positioning baffle (7) on the handle (12) of limit shaft outboard end.

2, the adjustable wrench of winning in succession according to claim 1 is characterized in that: limit shaft is the step axle, and worm screw member return spring (6) and worm screw (4) are set on the size axle of limit shaft.

3, the adjustable wrench of winning in succession according to claim 2 is characterized in that: establish on the little axle of worm screw (4) end the spacing snap ring of worm screw (14) is housed.

4, the adjustable wrench of winning in succession according to claim 2, it is characterized in that: on the little axle of step axle, be set with the worm screw member return spring baffle ring (13) that abuts on the big axial end, and the spacing snap ring (14) of worm screw member return spring baffle ring (13) is housed on the little axle of worm screw member return spring baffle ring (13) end.

5, according to claim 1,2, the 3 or 4 described adjustable wrenches of winning in succession, it is characterized in that:: on the outer lower end of the projection of pulling mouthful (2) greatly, be provided with and pull a mouthful locating convex block (9) greatly, the ratio that is provided with symmetry on the recess two sides near the handle (12) of pulling a mouthful locating convex block (9) inboard is greatly pulled the slot (11) that a mouthful locating convex block (9) grows a sliding pin position at least greatly, and sliding pin (10) is housed in slot (11).