CN2282480Y

CN2282480Y - Unidirectional forcing wrench or adjustable wrench

Info

Publication number: CN2282480Y
Application number: CN 96221489
Authority: CN
Inventors: 林炳学
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-06
Filing date: 1996-09-06
Publication date: 1998-05-27
Anticipated expiration: 2006-09-06

Abstract

The utility model relates to a unidirectional forcing wrench or movable wrench. A jaw is made to be a fastener, such as a hexagon head bolt, etc. when the jaw is tightened or loosened, force can be applied only when the hexagon head bolt rotates along the required direction. The jaw is formed on the clamping part which is formed one end of a handle. A clamping surface is formed on the both sides of the clamping part or in the movable wrench. A movable clamping claw is arranged on one side of the clamping part, so the jaw is made into a movable type. A wrench just can apply force in one direction. In other words, a cutting concave opening is formed on a part of the fixed clamping wall of the clamping part and a clamping surface is remained. The head of a hexagonal bolt can be clamped through a short clamping surface, a long clamping surface, a contact surface, and the clamping surface of the movable clamping claw.

Description

Only apply the spanner or the monkey wrench of power in a direction

The present invention relates to a kind of spanner or monkey wrench that applies power in one direction, jaw should be made when tightening or unscrewing one for example during the such securing member of hexagon-headed bolt or hex nut in this spanner, as long as it is apply a power on the direction of rotating along needs, thereby easy to use.

Usually, tightening or unscrewing one and will use spanner or monkey wrench during such as the such securing member of hexagon-headed bolt or hex nut, but because the size of clamping claw is made fixing, when in securing member insertion clamping claw, rotating, jaw should at first rotate a predetermined rotational angle, takes out and turn back to the origin-location then, securing member is inserted make repeated rotation again, therefore there is a shortcoming in this operation, promptly it be inconvenient and service speed slow.

The present invention has found the way that solves this inconvenience, the object of the present invention is to provide a kind of spanner or monkey wrench, and jaw is made especially and made securing member can insert jaw and only rotate along direction in this spanner, thereby reaches purpose easy to use.

Be a kind of spanner of realizing that above-mentioned purpose of the present utility model proposes, wherein jaw forms in the formed clamping part of an end of handle 1, clamping surface forms in its both sides, perhaps a kind of monkey wrench, wherein movable jaw is arranged on a side of the formed clamping part of an end of handle, this jaw is formed into movable pattern thus, it is characterized in that: this spanner or monkey wrench are made into to apply a power in one direction, promptly on the part that fixes to clamp wall of this clamping part, form one and cut out recess and surplus next clamping surface, the head of hex nut or hex bolts can pass through a short clamping surface, a long clamping surface, clamping surface of contact surface and this movable jaw and clamped, thereby have only when spanner and just can apply a power when rightabout that cuts out recess rotates to being formed with.

Fig. 1 is the perspective view of the embodiment of spanner of the present invention;

Fig. 2 is the zoomed-in view of the jaw of spanner among Fig. 1;

Fig. 3 is the demonstration view of the embodiment of monkey wrench of the present invention; And

Fig. 4 is the zoomed-in view of the jaw of spanner among Fig. 3.

Below with reference to accompanying drawings the present invention is elaborated.

At Fig. 1 the structure of spanner of the present invention and monkey wrench has been shown in Fig. 4.

Also say so, spanner of the present invention has the structure shown in Fig. 1 and Fig. 2, jaw 4 forms on the formed clamping part 2 of an end of handle 1, clamping surface 201,205 are formed on its both sides, form one and cut out recess 203 and surplus next clamping surface 202 on the part of this jaw, hex nut 6 or hexagon-headed bolt are just clamped by the clamping surface 205 of a short clamping surface 202 and opposite side whereby, thereby spanner can be rotated to the direction that does not cut out recess 203.Simultaneously, monkey wrench of the present invention has the structure as shown in Fig. 3 and Fig. 4, movable jaw 3 is arranged on the side of the clamping part 2 that an end place of handle 1 forms, clamp 4 mouthfuls thus and just be made for mobilizable pattern, on the part that fixes to clamp wall 201 of clamping part 2, be formed with one and cut out recess 203 and surplus next clamping surface 202, hex nut or hexagon-headed bolt can be by this short clamping surfaces 202, the clamping surface 301 of contact surface 204 and mobile claw 3 is clamped in the jaw 4, and when monkey wrench when being formed with the rightabout that cuts out recess 203 and rotating, the securing member that is clamped by this jaw just can be rotated.

According to this structure of the present invention, when hex nut 6 inserts in the jaw 4 of spanners and makes when protruding wedge angle 601 and remaining on the center of contact surface 204, since the clamping surface 602 of hex nut 6 be clamped surperficial 205 and another clamping surface 202 clamp as shown in Figure 2, thereby when clockwise rotating, spanner just is applied with a power, and when the spanner inhour is rotated, the protrusion wedge angle 602 of hex nut 6 enters and cuts out in the recess 203, make spanner be in idling conditions, thereby short clamping surface 202 is contacted with next clamping surface 602, therefore when spanner clockwise rotated, this nut just can rotate continuously.Situation about monkey wrench, when hex nut 6 inserts in the movable jaws 3 and adjusts clamping distance so that the protrusion wedge angle 601 of nut 6 when remaining on the center of contact surface, the clamping surface 602 of hex nut 6 just is clamped between the clamping surface 202 of the clamping surface 301 of movable jaw 3 and clamping part 2 as shown in Figure 4, therefore can clockwise rotate nut 6 continuously, but when spanner when its rightabout rotates, the protrusion wedge angle 601 of hex nut 6 enters and cuts out in the recess 203, thereby spanner is in idling conditions.

Therefore, under the situation that hex nut 6 inserts in the jaw 4, when having only the rightabout that cuts out recess 203 to formation when this monkey wrench to rotate, thereby just being applied with this hex nut of power just can be tightened, when needs are unscrewed this nut, rotate this clamped monkey wrench again by the first clamping part that overturns this monkey wrench and this hex nut can be unscrewed.

Therefore, if anyone has monkey wrench of the present invention, because nut is clamped at work In the jaw of wrench and can only rotate in one direction that this monkey wrench can be tightened or Unscrew this nut, thereby operation becomes not only fast but also convenient. According to monkey wrench of the present invention, one The very good novel adjustable spanner of kind of result of use only need to be made one fixing to clamp wall Cut out the so simple change of recess and just can create, this spanner is easily manufactured and can not Increase production cost, so this product has the advantage of practicality and good economy performance.

Claims

1. spanner, wherein jaw 4 forms in the formed clamping part 2 of an end of handle 1, clamping surface 201,205 in its both sides formation, perhaps a kind of monkey wrench, wherein movable jaw 3 is arranged on a side of the formed clamping part 2 of an end of handle 1, this jaw is formed into movable pattern thus, it is characterized in that: this spanner or monkey wrench are made into to apply a power in one direction, promptly on the part that fixes to clamp wall 201 of this clamping part 2, form one and cut out recess 203 and surplus next clamping surface 202, the head of hex nut or hex bolts can pass through a short clamping surface 202, a long clamping surface 205, clamping surface 301 of contact surface 204 and this movable jaw 3 and clamped, thereby have only when spanner and just can apply a power when rightabout that cuts out recess 203 rotates to being formed with.