CN2561555Y

CN2561555Y - Flexible spanners

Info

Publication number: CN2561555Y
Application number: CN 02239762
Authority: CN
Inventors: 王清树
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-10
Filing date: 2002-07-10
Publication date: 2003-07-23
Anticipated expiration: 2012-07-10

Abstract

The utility model discloses a movable wrench, mainly comprising a fixing vice body whose front end extends and is provided with a fixing vice end and whose tail end is provided with a shaft hole, a driving gear wheel whose center extends and forms a cylinder-shaped rotating shaft which is arranged in a shaft hole with a movable shaft and whose body circumference is provided with a plurality of ring teeth at equal intervals and whose center is provided with a driving hole, a sliding vice block whose front end extends and is provided with a clamping and folding vice end and whose bottom end edge is provided with a row of teeth to be engaged with the ring teeth of the driving gear wheel and a wrench handle whose front end extends and is provided with a buckling placing end to be penetrated and fixed in the driving hole. Through the structure, when the user rotates the wrench handle, simultaneously the sliding vice block is driven to generate level moving. Further according to the dimension of a screw cap, the opening width of a vice clamp is adjusted automatically to clamp the work piece of the screw cap automatically.

Description

Monkey wrench

Technical field

The utility model relates to a kind of spanner, refers to a kind of monkey wrench that can adjust the A/F size according to the nut size automatically especially.

Background technology

At present, use the fixing mode of bolt or nut combination, be applied in various aspects such as machinery, furniture already widely, but bolt or nut component in order to use various different sizes, the user is common must to prepare several the spanners that size is different, and real is inconvenience; Therefore, industry is promptly developed the monkey wrench that can adjust A/F, feasible bolt or the nut component that is applicable to multiple size, see also shown in Figure 1, the monkey wrench structure that it is commonly used for general tradition, it mainly has one handle 1, and these handle 1 one ends extend out fixedly pincers portion 2 of formation one, should be fixedly pincers portion 2 is interior can slide embedding one active clamp block 3, this active clamp block 3 is provided with several teeth groove 4 with respect to the fixing inner edge of pincers portion 2; Wherein fixedly pincers portion 2 interior axles are provided with a screw rod 5, this screw rod 5 is meshing with each other with this teeth groove 4, the user only need turn this screw rod 5 and can control this active clamp block 3 and move, to adjust this fixedly A/F between pincers portion 2 and the active clamp block 3, make the user do suitable adjustment according to the size of nut; By this, the user only need use a monkey wrench promptly applicable to the nut of various sizes;

Yet, because the monkey wrench of commonly using utilizes this screw rod 5 and this teeth groove 4 to be meshing with each other to adjust A/F merely, can only rely on the frictional force of 4 of this screw rod 5 and this teeth groove to fix this active clamp block 3, there is no other method or but device application of force clamp is tightly made workpiece such as nut, when in case nut is difficult to rotate or the need brute force is locked, when this spanner was able to big twisting force, the monkey wrench of commonly using but can't provide enough fixedly strength, very easily causes the nut slippage impaired;

In view of this, inventor of the present utility model actively researches and develops to improve and practises the shortcoming that monkey wrench is arranged, and a kind of monkey wrench is provided, and makes it have following purpose and function.

Summary of the invention

Main purpose of the present utility model is to provide a kind of monkey wrench that can adjust size automatically, and this spanner can be in user's rotating spanner lever, adjusts the A/F of clamp automatically according to the nut size, clamps workpiece such as system nut with automatic pincers.

Another purpose of the present utility model is: in the time of user's application of force rotating spanner lever, this travelling gear can drive to this active clamp block with the strength that lever rotates, and workpiece such as synchronous application of force fishbolt or nut, make spanner of the present utility model can more step up to make the nut workpiece, make it be able to more stably drive the nut workpiece; And the reaction direction can open caliper to decontrol the nut element when pulling spanner automatically, thereby makes things convenient for the user to use and operate.

Another purpose of the present utility model is: this spanner bandle and this spanner caliper employing activity compound mode, being convenient to the user can separately collect or carry, and more increases practicality of the present utility model and convenience.

For achieving the above object, the utility model provides a kind of monkey wrench, mainly comprises:

One fixed caliper, its front end projection are provided with a fixing pincers end, and are equipped with an axis hole in the tail end of this fixed caliper;

One travelling gear, this travelling gear center projection forms a columniform rotating shaft, is located in this axis hole with movable axis; And equidistantly be provided with the ring of numbers tooth in this travelling gear body periphery; Wherein the center of this travelling gear is equipped with a drive hole;

One sliding clamp piece, front end also projection are provided with a snap end, and establish a toothrow in the bottom edge of this sliding clamp piece, to be engaged in the ring tooth of this travelling gear;

One spanner bandle, its front end projection is provided with a holding end, is fixed in this drive hole for wearing;

By said structure, in the time of user's rotating spanner lever, promptly drive this sliding clamp piece and produce translation, and then adjust the A/F of clamp automatically according to the nut size, clamp workpiece such as system nut with automatic pincers.

Below in conjunction with drawings and Examples structure of the present utility model and the advantage that produced thereof are described in more detail.

Description of drawings

Fig. 1: for commonly using the floor map of spanner.

Fig. 2: three-dimensional exploded view of the present utility model.

Fig. 3: be three-dimensional combination figure of the present utility model.

Fig. 4: be action schematic diagram of the present utility model ().

Fig. 5: be action schematic diagram of the present utility model (two).

The specific embodiment

See also Fig. 2-shown in Figure 3, it mainly comprises a kind of monkey wrench of the utility model:

One fixed caliper 10, the front end projection of this fixed caliper 10 are provided with a fixing pincers end 11; Wherein, the tail end of this fixed caliper 10 is equipped with an axis hole 12;

One travelling gear 20, these travelling gear 20 center projections form a columniform rotating shaft 21, are located in this axis hole 12 with movable axis; And these travelling gear 20 peripheries equidistantly are provided with ring of numbers tooth 22; Wherein be concaved with a C type annular groove 211 in this rotating shaft 21, be provided with a C type ring 212 and be embedded in the axis hole 12 that is fixed in this fixed caliper 10; Wherein the center of this travelling gear 20 is equipped with a drive hole 23;

One sliding clamp piece 30, these sliding clamp piece 30 front ends also projection are provided with a snap end 31, and form the toothrow 32 of a straight line in the bottom edge of this slip caliper 30, on the ring tooth 22 that is engaged in this travelling gear 20; Wherein, 31 at this fixing pincers end 11 and this snap end form a clamping space 33, for clamping nut workpiece 60;

Number slide rail set 40, it is a parallel slide rail piece 41 and the chute 42 of being provided with on the sidewall of this fixed caliper 10 mainly, and on the madial wall of this active clamp block 30 also correspondence be provided with a slide rail piece 41 ' and a chute 42 ', make these slide rail piece 41 sliding sleeves in this chute 42 ', and this slide rail piece 41 ' sliding sleeve is in this chute 42; Moreover this chute 42,42 ' central authorities offer a stopper slot 43,43 ', wear and spiral shell is located on this slide rail piece 41,41 ' for a caging bolt 431,431 ', make this fixed

caliper

10 and 30 of this sliding clamp pieces can produce spacing slip;

One spanner bandle 50, its front end projection forms a holding end 51, and the activity of being provided with is embedded in this drive hole 23;

See also Fig. 4-shown in Figure 5 again, be described in detail at operating principle of the present utility model, earlier nut workpiece 60 is placed in this clamping space 33, with this travelling gear 20 is the center of circle, promoting this spanner bandle 50 in the counterclockwise direction rotates, rotate in the counterclockwise direction to drive this travelling gear 20, and then drive this sliding clamp piece 30 toward holding 11 direction translations by fixing pincers, the A/F in this clamping space 33 is dwindled gradually, be close proximity to this nut workpiece 60 surfaces up to this snap end 31, continue to promote this spanner bandle 50 and can drive this nut workpiece 60 rotations.

By said structure, monkey wrench of the present utility model can be in user's rotating spanner lever 50, adjusts the A/F in this clamping space 33 automatically according to the nut size, clamps system nut workpiece 60 with automatic pincers.

And when user's application of force was rotated this spanner bandle 50, the strength that this travelling gear 20 can rotate this spanner bandle 50 drive to this sliding clamp piece 30, and driven in synchronism should fixing pincers end 11 and workpiece such as snap end 31 application of force fishbolts or nut; Moreover when the user rotates the strength of this spanner bandle 50 when big more, the clamp strength that this produced is also big more, makes spanner of the present utility model can more step up to make nut workpiece 60, prevents to cause 60 slippages of nut workpiece impaired because of the spanner application of force when excessive; And when user's reaction direction is pulled spanner, can open caliper automatically to decontrol nut workpiece 60, thereby make things convenient for the user to use and operate.

Moreover, of the present utility model pulling in the mode of lever 50 with this plench body portion employing activity combination, being convenient to the user can separately collect or carry, and more increases practicality of the present utility model and convenience.

In sum, the utlity model has novel structure and progressive effect, really meet the regulation of Patent Law.

Claims

1. monkey wrench is characterized in that: mainly comprise:

One fixed caliper (10), its front end projection are provided with fixing pincers ends (11), and are equipped with an axis hole (12) in the tail end of this fixed caliper (10);

One travelling gear (20), this travelling gear (20) center projection forms a columniform rotating shaft (21), is located in this axis hole (12) with movable axis; And equidistantly be provided with ring of numbers tooth (22) in this travelling gear (20) body periphery; Wherein the center of this travelling gear (20) is equipped with a drive hole (23);

One sliding clamp piece (30), front end also projection are provided with a snap end (31), and establish a toothrow (32) in the bottom edge of this sliding clamp piece (30), to be engaged in the ring tooth (22) of this travelling gear (20);

One spanner bandle (50), its front end projection are provided with a holding end (51), are fixed in this drive hole (12) for wearing.

2. a kind of monkey wrench as claimed in claim 1, it is characterized in that: on the madial wall of this fixed caliper (10) and this sliding clamp piece (30), correspondence is provided with parallel slide rail piece (41,41 ') of number and chute (42,42 '), makes this sliding clamp piece (30) go up translation gliding in this fixed caliper (10).

3. a kind of monkey wrench as claimed in claim 2 is characterized in that: this chute (42,42 ') central authorities are equipped with a stopper slot (43,43 ').

4. a kind of monkey wrench as claimed in claim 3 is characterized in that: this stopper slot (43,43 ') wears a caging bolt (431,431 ') and is located on this slide rail piece (41,41 ') with spiral shell.

5. a kind of monkey wrench as claimed in claim 1 is characterized in that: be concaved with one (C) type annular groove (211) in this rotating shaft (21), be provided with one (C) type ring (212) axle and establish and be fixed in the axis hole (12).