CN2470055Y

CN2470055Y - Ratchet type open end wrench

Info

Publication number: CN2470055Y
Application number: CN 01238552
Authority: CN
Inventors: 金学顺
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2001-03-29
Filing date: 2001-03-29
Publication date: 2002-01-09
Anticipated expiration: 2011-03-29

Abstract

The utility model relates to a ratchet opening wrench, comprising a handle and an opening dop. The outer side of the opening dop is arc-shaped. A tenon slot is sliding matched with a tenon of the handle. The arc-shaped outer side of the opening dop is provided with a ratchet tooth that is matched with a ratchet of a ratchet block that is elastically connected with the handle. The utility model can pull, roll and adjust a screw rod and a nut positioned by upper and lower, left and right components, particularly applicable for the rolling and adjusting of the nut on an adjustable switch operating rod on a railway signal switch machine.

Description

Ratchetable open-ended wrench

The utility model relates to a kind of open-end wrench, particularly a kind of ratchetable open-ended wrench.

Back-up wrench, adjustable wrench, box spanner etc. are arranged in the prior art, be used to pull the rotary screw nut.But for some specific occasions, owing to be subjected to the restriction of peripheral space position, these spanners often can not use.Adjustable switch operating rod as the railway signal goat, the adjustment of the nut on it, can not use box spanner because of the restriction that is subjected to lower member, be subjected to the restriction of left and right sides member again, restriction the pulling angle of pinch bar and can not use general back-up wrench and adjustable wrench.So the operating personnel will adjust this adjustable switch operating rod, all adopt hand hammer to knock nut on the adjustable switch operating rod, nut is rotated achieve the goal.This adjustment mode wastes time and energy, and very easily damages nut and adjustable switch operating rod.

The purpose of this utility model is to provide a kind of ratchetable open-ended wrench, can pull rotation adjustment to being subjected to up and down the spacing bolt and nut of member.

For achieving the above object, the utility model will be used following technical proposals:

A kind of ratchetable open-ended wrench comprises handle and opening dop, it is characterized in that the opening dop outside is circular arc, and has the tenon of tongue-and-groove and handle to be slidingly matched; The ratchet that the opening dop circular arc outside has hook tooth and an elasticity to be connected in the ratchet piece of handle mates.

The tongue-and-groove in the opening dop circular arc outside is a "T"-shaped groove and joining with the "T"-shaped tenon cunning of handle; Perhaps, the tongue-and-groove in the opening dop circular arc outside is a swallow tail shaped slot and joining with the swallow-tail form tenon cunning of handle.

The hook tooth in the opening dop circular arc outside is to fix a circular arc ratchet wheel block by the front of opening dop to constitute.

The middle part of ratchet piece is hinged by a pin and handle, the ratchet of ratchet piece one end end and opening dop outside hook tooth coupling, and an end of the fixedly connected extension spring of the other end, and the other end of extension spring is fixedlyed connected with handle.

Opening dop inboard is half hexagon or square groove shape.

The utility model compared with prior art, have following conspicuous characteristics and advantage: join movingly with the tongue-and-groove tenon between handle of the present utility model and the opening dop and mate with the ratchet ratchet, thereby can pull rotation adjustment to being subjected to up and down the spacing bolt and nut of member, be specially adapted to the rotation adjustment of the adjustable switch operating rod top nut of railway signal goat.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the structural representation of an embodiment of the utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is an A-A place profile among Fig. 1.

Fig. 4 is the structural representation of another embodiment of the utility model.

Fig. 5 is the vertical view of Fig. 4.

Fig. 6 is a B-B place profile among Fig. 4.

Embodiment one: referring to Fig. 1, Fig. 2 and Fig. 3, this ratchetable open-ended wrench includes handle 5 and opening dop 1, and opening dop 1 outside is circular arc, and has the swallow-tail form tongue-and-groove 7 and the swallow-tail form tenon 8 of handle 5 to be slidingly matched.There is the ratchet coupling of a hook tooth 2 and a ratchet piece 8 in the opening dop 1 circular arc outside, the middle part of ratchet piece 3 is hinged by a pin 4 and handle 5, one end of the fixedly connected extension spring 6 of the other end of ratchet piece 3, and the other end of extension spring 6 is fixedlyed connected with handle 5.Opening dop 1 inboard is half hexagon.

Embodiment two: referring to Fig. 4, Fig. 5 and Fig. 6, this ratchetable open-ended wrench is same as the previously described embodiments basically, and institute's difference is: opening dop 1 outside tongue-and-groove 7 is the "T"-shaped tenon 8 slip couplings of "T"-shaped tongue-and-groove with handle 5; The hook tooth 2 in the opening dop 1 circular arc outside is to fix a circular arc ratchet wheel block 9 by the front of opening dop 1 by two pins 10 to constitute.

Claims

1. a ratchetable open-ended wrench comprises handle (5) and opening dop (1), it is characterized in that opening dop (1) outside is circular arc, and has the tongue-and-groove (7) and the tenon (8) of handle (5) to be slidingly matched; Opening dop (1) the circular arc outside has hook tooth (2) and an elasticity to be connected in the ratchet coupling of the ratchet piece (3) of handle (5).

2. ratchetable open-ended wrench according to claim 1 is characterized in that the tongue-and-groove (7) in opening dop (1) the circular arc outside is "T"-shaped tenon (8) sliding join of "T"-shaped groove with handle (5); Perhaps, the tongue-and-groove (7) in opening dop (1) the circular arc outside is swallow-tail form tenon (8) sliding join of swallow tail shaped slot with handle (5).

3. ratchetable open-ended wrench according to claim 1, the hook tooth (2) that it is characterized in that opening dop (1) the circular arc outside are to fix a circular arc ratchet wheel block (9) by the front of opening dop (1) to constitute.

4. ratchetable open-ended wrench according to claim 1, the middle part that it is characterized in that ratchet piece (3) is hinged by a pin (4) and handle (5), the ratchet of ratchet piece (3) one end ends and opening dop (1) outside hook tooth (2) coupling, and an end of the fixedly connected extension spring of the other end (6), the other end of extension spring (6) is fixedlyed connected with handle (5).

5. ratchetable open-ended wrench according to claim 1 is characterized in that opening dop (1) inboard is half hexagon or square groove shape.