CN101444904B - Adjustable quick-clamp ratchet wrench - Google Patents

Abstract

An adjustable quick-clamp ratchet wrench comprises a handle, a connecting body, a shell body component, a guide plate, a jaw component, a jaw extension spring component and a jaw opening control component. The shell body component is formed by connecting a middle shell body, an upper shell body and a lower shell body, the jaw component is composed of two upper jaws and two lower jaws with symmetrical and same structures, wherein, one upper jaw and one lower jaw are fixedly connected to constitute an upper jaw, the other upper jaw and the other lower jaw are fixedly connected to constitute a lower jaw. The inner walls of the upper shell body and the lower shell body are composed of a pair of involute arc-shaped surfaces, the two upper jaws and the two lower jaws are respectively provided with bumps which are adapted with the arc-shaped surfaces and can be connected with the arc-shaped surface of the corresponding upper shell body or the lower shell body through the bumps in a sliding manner. The adjustable quick-clamp ratchet wrench has the characteristics or advantages of simple structure, adjustable jaw span, rapid adjustment speed, ability of rapidly clamping and releasing, ratchet function, etc.

Description

Adjustable quick-clamp ratchet wrench

Technical field

The present invention relates to a kind of hand-held tool that is used to screw parts such as nut, relate in particular to a kind of adjustable quick-clamp ratchet wrench.

Background technology

The adjustable spanner of prior art generally has a worm-and-wheel gear, and the motion that is used for controlling moving caliper is to reach different opening degrees, and the user needs spended time to remove to rotate worm gear; Perhaps in order to make the close easier of jaw, use the adjustable spanner of motorized, this spanner moves with the quickening caliper by battery-operated motor and regulates the opening and closing of jaw, has saved the time of regulating jaw; More than two kinds of instruments all need some Mechanical Driven or transmission to realize regulatory function

The ratchet wrench of prior art has ratcher function, but it needs the supporting use of sleeve of one group of different size.At different objects different sleeves to be installed during use, will repeat in the use to install, the pulling off sleeves head, more time-consuming, and wear a collet head that overlaps different size always.

Summary of the invention

Purpose of the present invention is exactly in order to solve the problem that above-mentioned prior art exists, a kind of adjustable quick-clamp ratchet wrench that does not need sleeve to be provided.

In order to achieve the above object, the present invention has adopted following technical scheme: a kind of adjustable quick-clamp ratchet wrench comprises:

Handle;

Connector links to each other by bearing pin is rotatable with handle;

Housing unit is cirque structure, is formed by connecting and is fixedly linked with connector by middle shell, upper shell and lower house;

Guide plate is inlaid in the middle shell and can rotates along middle shell;

The jaw assembly, form by two upper jaws and two lower jaws that symmetrical configuration is identical, two upper jaws are arranged on the top of guide plate, two lower jaws are arranged on the below of guide plate, a slice upper jaw and a slice lower jaw composition upper jaw that is fixedly linked wherein, another sheet upper jaw and another sheet lower jaw composition lower jaw that is fixedly linked;

Jaw tension spring assembly, comprise two tension springs and four connecting pins, two tension springs are separately positioned in the spring eye of guide plate both sides relative set, four connecting pins link to each other with the two ends of two tension springs respectively and pass guide plate respectively and go up lower jaws and link to each other with corresponding two, two last lower jaws that connecting pin connected at each tension spring two ends belong to same upper jaw or same lower jaw respectively, promptly two springs connect upper and lower jaw respectively, provide pulling force between upper and lower jaw;

Jaw opens Control Component, comprise push button, return spring and spring guide, the spring guide ring is located in the slotted eye of middle shell relative set, its two ends are fixedly linked with housing respectively, return spring is sleeved on the spring guide and can moves along spring guide, push button is set on the spring guide and keeps off in the outer end of return spring, and slotted eye and guide plate that middle shell is radially passed in the inner of push button are fixedly linked.

The inwall of described upper shell and lower house is made of a pair of arcwall face of gradually opening, and described two upper jaws and two lower jaws are respectively equipped with the adaptive projection of this arcwall face and slidably link to each other by the arcwall face of this projection with respective superior body or lower house.

Be respectively equipped with mounting hole at the position that four connecting pins pass on the described guide plate, four connecting pins can move in four mounting holes respectively, thereby the drive jaw opens or closes up.

Adjustable quick-clamp ratchet wrench of the present invention is simple in structure, have can regulate length between vices and governing speed fast, can clamp fast and discharge and have characteristics and an advantage such as ratcher function.

Description of drawings

Fig. 1 is the perspective view of adjustable quick-clamp ratchet wrench of the present invention;

Fig. 2 is the sectional structure schematic diagram of adjustable quick-clamp ratchet wrench of the present invention;

Fig. 3 is the decomposition texture schematic diagram of adjustable quick-clamp ratchet wrench of the present invention;

Fig. 4 is the jaw combination perspective view among the present invention;

Fig. 5 is the sectional structure schematic diagram of Fig. 4;

Fig. 6 is the closure state schematic diagram of adjustable quick-clamp ratchet wrench of the present invention;

Fig. 7 is the view that partially opens of adjustable quick-clamp ratchet wrench of the present invention;

Fig. 8 is the full open position schematic diagram of adjustable quick-clamp ratchet wrench of the present invention.

The specific embodiment

Referring to Fig. 1, cooperate referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, adjustable quick-clamp ratchet wrench of the present invention comprises that handle 1, connector 2, housing unit 3, guide plate 4, jaw assembly 5, jaw tension spring assembly 6 and jaw open Control Component 7.

Handle 1 is combined by handle main body 11 and extensible member 12, and it uses length to regulate.

Connector 2 and handle 1 be by 8 rotatable linking to each other of bearing pin, and connector is provided with a plurality of locating holes, the corresponding steel ball spring positioning component 13 that is provided with of the front end of handle 1 at the link of itself and handle 1.

Housing unit 3 is a cirque structure, be formed by connecting by middle shell 31, upper shell 32 and lower house 33, be respectively equipped with on upper shell 32 and lower house 33 and be used for the contiguous block 321,331 that links to each other with connector 2, housing unit 3 is fixedly linked with connector 2 by its contiguous block 321,331 and bearing pin 9.The inwall of upper shell 32 and lower house 33 is made of a pair of arcwall face of gradually opening.

Guide plate 4 is inlaid in the middle shell 31 and can rotates along middle shell, is respectively equipped with a radial spring hole 41 that is used for mounting spring in the both sides of guide plate 4, and is respectively equipped with two mounting holes 42 that pass the axial perforation of this spring eye 41.The end that four connecting pins pass four mounting holes respectively and are arranged on the spring 61 in the spring eye 41 links to each other and links to each other with the corresponding infragnathal plate of going up, and four connecting pins can move along four mounting holes respectively, thereby the drive jaw opens or closes up.

Jaw assembly 5 is made up of identical 51,52 and two lower jaws 53,54 of two upper jaws of symmetrical configuration, two upper jaws 51,52 are arranged on the top of guide plate 4, two lower jaws 53,54 are arranged on the below of guide plate 4, the upper jaw 51 and the lower jaw 53 composition upper jaw that is fixedly linked wherein, the upper jaw 52 and the lower jaw 54 composition lower jaw that is fixedly linked; Be respectively equipped with on 51,52 and two lower jaws 53,54 of two upper jaws with upper shell 32 and lower house 33 on the adaptive projection a of arcwall face, two upper jaws 51,52 and two lower jaws 53,54 slidably link to each other with arcwall face on respective superior body or the lower house by the projection on it respectively.51,52 and two lower jaws 53,54 of two upper jaws also can radially slide on the surface of guide plate 4 respectively.

Jaw tension spring assembly 6 comprises two tension springs 61 and four connecting pins 62, two tension springs 61 are separately positioned in the spring eye 41 of guide plate both sides relative set, four connecting pins 62 link to each other with the two ends of two tension springs respectively and pass guide plate 4 respectively and go up lower jaws and link to each other with corresponding two, two last lower jaws that connecting pin connected at each tension spring 61 two ends belong to same upper jaw or same lower jaw respectively, promptly two springs connect upper and lower jaw respectively, provide pulling force between upper and lower jaw.

Jaw opens Control Component 7 and comprises push button 71, return spring 72 and spring guide 73, spring guide 73 rings are located in the slotted eye of middle shell 31 relative set, its two ends are fixedly linked with housing respectively, return spring 72 is sleeved on the spring guide 73 and can moves along spring guide, push button 71 is set on the spring guide and keeps off in the outer end of return spring 72, and slotted eye and guide plate 4 that middle shell 31 is radially passed in the inner of push button 71 are fixedly linked.

The operation principle of adjustable quick-clamp ratchet wrench of the present invention can be described as follows in conjunction with Fig. 6, Fig. 7, Fig. 8: adjustable quick-clamp ratchet wrench is in closure state under nature, as shown in Figure 6.When clockwise rotating with hand propelled push button 71, jaw assembly 5 clockwise rotates synchronously, and it is big that the spacing between upper jaw and the lower jaw becomes, as shown in Figure 7.When continuing to clockwise rotate near the connector place with hand propelled push button 71, jaw is opened fully, and as shown in Figure 8, pack into workpiece with jaw this moment, relinquishment button then, whole jaw assembly under the reaction force acts of return spring 72 counterclockwise rotating clip live workpiece.Clockwise rotate handle this moment, promptly can tighten workpiece, and when rotating counterclockwise handle, handle is moving and workpiece is motionless, has ratcher function.

The handle of adjustable quick-clamp ratchet wrench of the present invention also can turn to different angles as required or be adjusted to different length, and is convenient in different workplace uses.

Claims (3)

1. adjustable quick-clamp ratchet wrench is characterized in that comprising:

Handle;

Connector links to each other by bearing pin is rotatable with handle;

Housing unit is cirque structure, is formed by connecting and is fixedly linked with connector by middle shell, upper shell and lower house;

Guide plate is inlaid in the middle shell and can rotates along middle shell;

The jaw assembly, form by two upper jaws and two lower jaws that symmetrical configuration is identical, two upper jaws are arranged on the top of guide plate, two lower jaws are arranged on the below of guide plate, a slice upper jaw and a slice lower jaw composition upper jaw that is fixedly linked wherein, another sheet upper jaw and another sheet lower jaw composition lower jaw that is fixedly linked;

Jaw tension spring assembly, comprise two tension springs and four connecting pins, two tension springs are separately positioned in the spring eye of guide plate both sides relative set, four connecting pins link to each other with the two ends of two tension springs respectively and pass guide plate respectively and go up lower jaws and link to each other with corresponding two, two last lower jaws that connecting pin connected at each tension spring two ends belong to same upper jaw or same lower jaw respectively, promptly two springs connect upper and lower jaw respectively, provide pulling force between upper and lower jaw;

Jaw opens Control Component, comprise push button, return spring and spring guide, the spring guide ring is located in the slotted eye of middle shell relative set, its two ends are fixedly linked with housing respectively, return spring is sleeved on the spring guide and can moves along spring guide, push button is set on the spring guide and keeps off in the outer end of return spring, and slotted eye and guide plate that middle shell is radially passed in the inner of push button are fixedly linked.

2. adjustable quick-clamp ratchet wrench according to claim 1, it is characterized in that: the inwall of described upper shell and lower house is made of a pair of arcwall face of gradually opening, and described two upper jaws and two lower jaws are respectively equipped with the adaptive projection of this arcwall face and slidably link to each other by the arcwall face of this projection with respective superior body or lower house.

3. adjustable quick-clamp ratchet wrench according to claim 1 is characterized in that: be respectively equipped with mounting hole at the position that four connecting pins pass on the described guide plate, four connecting pins can move in four mounting holes respectively, thereby the drive jaw opens or closes up.

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