CN2312107Y

CN2312107Y - Adjustable jaw wrench with ratchet locking means

Info

Publication number: CN2312107Y
Application number: CN 98201480
Authority: CN
Inventors: 赵幼仪
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-02
Filing date: 1998-03-02
Publication date: 1999-03-31
Anticipated expiration: 2008-03-02

Abstract

The utility model relates to an adjustable spanner for a ratchet lock switch, which is composed of spanner bodies, a special worm wheel, and a ratchet lock switch. The spanner bodies comprise a fixed spanner body and a movable spanner body. A slideway is arranged on the fixed spanner body, and a sliding key and a rack bar are arranged on the movable spanner body. The sliding key moves in the slideway. A spanner opening parallel opens and closes. The worm wheel is engaged with the rack bar. A gear wheel for the worm wheel is driven by the switch through a gear wheel for the switch in order to open and close the spanner opening. The position of the spanner opening can be locked through a lock knife. The utility model has the advantages of simple structure, easy manufacture, and outstanding performance. The utility model can be opened and closed in a flash and the position can be locked. The great breakthrough can be obtained technically.

Description

Ratchet lock-switch adjustable wrench

The utility model relates to a kind of high-speed switch adjustable wrench that has the ratchet lock.

Recent decades, domestic have countless versions monkey wrench reform scheme, but the winner is very few.My patented technology 96120250.5 is important breakthrough on the adjustable wrench acquisition of technology, but its manufacturing technique requirent is higher, is worth expensive.

The purpose of this utility model will provide a kind of manufacturing easy, cheap exactly, but function can compare beautiful high-speed switch type adjustable wrench with 96120260.5 technology.

The purpose of this utility model is achieved in that whole spanners form by pulling body, extraordinary worm gear and ratchet lock-switch, pull the body branch and pull body and the moving body of pulling surely, be provided with slide rail on the body pulling surely, be provided with feather key and tooth bar on the body moving pulling, feather key moves in slide rail, pull a mouthful parallel folding, the worm gear of extraordinary worm gear and tooth bar engagement, the ratchet lock-switch drives the rotation of extraordinary worm gear by switch gear, thereby a mouthful folding is pulled in control, and locks the position of pulling mouth by the lock cutter.Extraordinary worm gear is made up of worm gear and worm-gear toothing, and both are connected as a single entity and for coaxial wheels, use a wheel shaft jointly.The ratchet lock-switch is made up of switch gear, shift bar, release knob, lock cutter, snap, lock knife rest, switch gear and worm-gear toothing engagement, shift bar is that gear shaft passes and pulls body, external side is being pulled in the end, load onto release knob, the lock cutter is fixed on the lock knife rest with lock shaft, and the elastic force of snap should make lock point of a knife end be pressed on the switch gear downwards, switch gear can only just be changeed forward clockwise, and can not reverse backward counterclockwise.

Compared with prior art, the utility model is only set up worm-gear toothing on the worm gear of former conventional spanner, and install switch gear additional and lock the ratchet lock-switch that cutter is formed, just make adjustable wrench in the also locking of moment quickly opening and closing, simple in structure, easy to manufacture, but realized quick and convenient and overcome conventional spanner pulling a mouthful easily loosening difficult problem, made the promptly convenient use of spanner not fragile again.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is a ratchet lock-switch monkey wrench overall appearance schematic diagram.

The optimum implementation structural representation that Fig. 2 provides for the utility model.

As shown in Figure 1, (1) for pulling body, (2) are extraordinary worm gear, and (3) are the ratchet lock-switch.

As shown in Figure 2, (1.1) for pulling body surely, (1.2) are the moving body of pulling.Be provided with slide rail (1.1A) on the body pulling surely, be provided with feather key (1.2A) and tooth bar (1.2B) on the body moving pulling, feather key moves in slide rail, pulls the parallel folding of a mouthful E, F.(2.1) be worm gear, (2.2) are worm-gear toothing, and both are connected as a single entity and are coaxial wheels, a shared wheel shaft (2.3).Worm-gear toothing is meshed with the tooth bar of top, and (3.1) are switch gear, and (3.2) are shift bar, and (3.3) are release knob, and (3.4) are the lock cutter, and (3.5) are that lock shaft, (3.6) are snap, and (3.7) are the lock knife rest.The engagement of switch gear and worm-gear toothing, shift bar are that gear shaft passes and pulls body, and the external release knob that installs additional is being pulled in the end, and the rotating switch button because the rotation of switch gear drives the rotation of worm-gear toothing, thereby drives the tooth bar motion, and the folding of mouth is pulled in control.Snap makes the perk of lock cutter afterbody, pointed end is pressed on the switch gear, switch gear combines with the lock cutter and forms the ratchet lock like this, switch gear can only clockwise rotate forward, and can not rotate counterclockwise backward, and when switch gear clockwise rotates forward, pull a mouthful closure to tighten up, must make workpiece clamp locking position, pull mouthful difficult becoming flexible.

Claims

1. ratchet lock-switch adjustable wrench, it is characterized in that whole spanners form by pulling body (1), extraordinary worm gear (2), ratchet lock-switch (3), pull the body branch and pull body (1.1) and the moving body (1.2) of pulling surely, be provided with slide rail (1.1A) on the body pulling surely, moving pulling feather key (1.2A) and tooth bar (1.2B) are arranged on the body, feather key moves in slide rail, pulls the parallel folding of a mouthful E, F; The ratchet lock-switch drives the rotation of extraordinary worm gear by switch gear, thereby a mouthful folding is pulled in control, and pulls a mouthful position by the locking of lock cutter.

2. ratchet lock-switch adjustable wrench as claimed in claim 1 is characterized in that extraordinary worm gear is made up of worm gear (2.1) and worm-gear toothing (2.2), and both are connected as a single entity and are coaxial wheels, use a wheel shaft (2.3) jointly.

3. ratchet lock-switch adjustable wrench as claimed in claim 1 is characterized in that the ratchet lock-switch is made up of switch gear (3.1), shift bar (3.2), release knob (3.3), lock cutter (3.4), lock shaft (3.5), snap (3.6), lock knife rest (3.7):

(A) switch gear and worm-gear toothing engagement, shift bar are that gear shaft passes and pulls body, and the end is being pulled externally, installs release knob additional;

(B) the lock cutter is fixed on the lock knife rest with lock shaft, and the elastic force of snap should make the pointed end of lock cutter be pressed on the switch gear, switch gear can only just be changeed forward clockwise, and can not reverse backward counterclockwise.