CN2892382Y

CN2892382Y - Adjustable spanner with one-way moving function

Info

Publication number: CN2892382Y
Application number: CN 200620056037
Authority: CN
Inventors: 李逸民
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-07
Filing date: 2006-03-07
Publication date: 2007-04-25
Anticipated expiration: 2016-03-07

Abstract

The utility model discloses a single acting adjustable wrench, in particular a adjustable wrench with simple structure and easy operation. The inner surface of the fixed jaw of the adjustable wrench holder is a concave surface, which is provided with a via sliding hole, and a self-returning movable jaw rod is arranged in the sliding hole. The movable jaw rod is provided with a clamping surface opposite to the clamping surface of the movable jaw, and the two clamping surfaces are used to clamp the parallel sides of screw workpieces. When the adjustable wrench is inversely rotated, the movable jaw rod is pushed inward by the screw workpiece, and will not drive the screw workpiece to rotate inversely. Such design realizes single acting, and the utility model can be used to unidirectionally clamp screw workpieces and be withdrawn back with the workpiece released. Operation speed and convenience are both improved.

Description

The monkey wrench of tool movement in one direction function

Technical field

The utility model is subordinate to a kind of technical field of monkey wrench, refers to a kind of monkey wrench of tool movement in one direction function especially.

Background technology

The spiral shell spare of general bolt or nut and so on mainly be with all kinds of spanners as the instrument that screws or loosen, for example ratchet spanner, box spanner, open-end wrench, double offset ring spanner and monkey wrench etc.No matter and since spiral shell spare degree of tightness mainly be to finish by spinning movement, when running into to carry out the occasion of wholecircle Zhou Xuanzhuan the time, usually need advance behind the segment distance, separate counter-rotating again, progressively to reach the purpose that screws or loosen, because such mode of operation is inconvenience very, but therefore the development of the Wrench of single effect such as ratchet spanner is arranged, thereby promoted ease of use.On the other hand, use the more occasion of spiral shell spare specification when running into, when needing constantly to change the running-on of different size, monkey wrench that can the section of nothing adjusting opening specification can overcome this problem.

And existing monkey wrench is also developed various structures for movement in one direction, as No. 395311 it " improvement of monkey wrench check configuration " of TaiWan, China patent, No. 453253 it " adjustable ratchet wrench " and No. 566273 preceding case of it patents such as " the monkey wrench structural improvements of unidirectional ratchet ".The monkey wrench of aforementioned tool one-way function has two large problems: one is that the overall structure of this monkey wrench is too complicated, and not only part is many, and manufacturing is difficult, moreover also raising relatively of assembly cost, does not have economic benefit; It two is that spacing property is not good, and the phenomenon of slippage takes place easily, causes the inconvenience in the use.

Via above-mentioned explanation, the monkey wrench that is understood that existing tool ratcher function is not because structural design is attained perfectly, and ubiquity has " complex structure ", " cost height " reach shortcomings and inconvenience such as " using inconvenience ", and remains further to be improved.

The utility model content

The purpose of this utility model is to provide the monkey wrench of the good tool movement in one direction function of a kind of spacing property, with the convenience that promote to use, and further simplified structure, and can effectively reduce manufacturing and assembly cost.

For achieving the above object, technical solution of the present utility model is: a kind of monkey wrench of tool movement in one direction function, it has the handle bar of an elongated rod shape, a this handle bar wherein end is formed with a fixed jaw, and be provided with a worm screw in the handle bar, this worm screw drives a movable jaw relative fixed jaw and closes or separate; Described fixed jaw is provided with a folder rotation structure, and this folder rotation structure forms one for the direct rotating inner concave of spiral shell spare in the fixed jaw medial surface, moreover is formed with a slide opening on the fixed jaw, and this slide opening is formed with the openend of a tool limiting section at corresponding inner concave; In addition, be provided with the automatically reset mobile jaw rod that to make progress in this slide opening, this mobile jaw rod top is formed with the support surface that can paste to the slide opening limiting section, the corresponding movable jaw of this mobile jaw rod side is formed with an oblique surface in the adjacent top end place again, and mobile jaw rod is formed with the clamping surface of a relative movable jaw clamping surface in the periphery of contiguous oblique surface, and this clamping surface compresses below the central point of the corresponding parallel edges of spiral shell spare.

The slide opening other end of described fixed jaw is formed with an internal thread segment, and this internal thread segment lock is established a bolt of stopping payment for the spacing usefulness of mobile jaw rod.

Described mobile jaw rod bottom and stopping payment is provided with an elastic parts that can upwards reset automatically for mobile jaw rod between bolt.

Described mobile jaw rod is formed with an open-work in the clamping surface below, described movable jaw front end has protruded out a push rod, this push rod bottom surface is formed with an oblique surface, when movable jaw when folder is pulled small-sized spiral shell spare, push rod penetrates open-work, its oblique surface presses down mobile jaw rod, and the clamping surface of mobile jaw rod is pressed against below the central point of the corresponding parallel edges of small-sized spiral shell spare.

After adopting such scheme, because the utility model is when monkey wrench reverses, mobile jaw rod can inwardly be passed by the effect of spiral shell spare, thereby the counter-rotating of unlikely drive spiral shell spare can reach the purpose of movement in one direction like this, monkey wrench can unidirectional folder be pulled drive spiral shell spare, and can oppositely dally and return, thereby promote the convenience of operation, and can simplify its structure, reduce cost, and can promote its surcharge.

Description of drawings

Fig. 1 is the perspective exploded view of the utility model monkey wrench, and it discloses the assembly and the relativeness thereof of the utility model monkey wrench;

Fig. 2 is the three-dimensional appearance schematic diagram of the utility model monkey wrench;

Fig. 3 is partly cut-away's schematic diagram of the utility model monkey wrench;

Fig. 4 is the action schematic diagram of the utility model practice, makes the state and the relevant position thereof of spiral shell spare in order to explanation monkey wrench folder stopper;

Fig. 5 is another action schematic diagram of the utility model practice, state and relevant position thereof when further specifying monkey wrench and returning;

Fig. 6 is the action schematic diagram of the utility model practice in small-sized spiral shell spare.

The primary clustering symbol description

10 handle bars, 11 fixed jaws, 12 worm screws

13 embedding slide openings, 15 movable jaws, 16 tooth-strip parts

17 push rods, 18 oblique surfaces, 20 folder rotation structures

21 inner concaves, 22 slide openings, 220 openends

221 limiting sections, 222 internal thread segment 23 are stopped payment bolt

24 elastic parts, 25 mobile jaw rods, 250 embedding holes

251 support surfaces, 252 oblique surfaces, 253 clamping surfaces

26 open-works

The specific embodiment

The utility model is a kind of monkey wrench of tool movement in one direction function, please cooperate Fig. 1, shown in 2, this monkey wrench has the handle bar 10 of an elongated rod shape, this handle bar 10 a wherein end is formed with a fixed jaw 11, and handle bar 10 apical margins differ from fixed jaw 11 1 side bottom surfaces and are formed with an embedding slide opening 13, this embedding slide opening 13 can be sliding for movable jaw 15 embeddings of the corresponding tooth-strip part 16 of a tool, be provided with a worm screw 12 in the handle bar 10 in addition, this worm screw 12 is meshed with the tooth-strip part 16 of movable jaw 15, allow movable jaw 15 can be subjected to worm screw 12 effect relative fixed jaws 11 move left and right, wherein fixed jaw 11 is provided with a folder rotation structure 20 again, clamps spiral shell spare or idle running relatively with corresponding movable jaw 15.

Most preferred embodiment as for the utility model feature structure, then please be simultaneously referring to shown in Fig. 1,2,3, described folder rotation structure 20 then forms the inner concave 21 of a recess in fixed jaw 11 medial surfaces, to provide spiral shell spare direct rotating space, moreover be formed with a slide opening 22 on the fixed jaw 11, this slide opening 22 is formed with an openend 220 in corresponding inner concave 21, openend 220 is formed with a limiting section that does not run through 221 in corresponding wall place, and slide opening 22 other ends are formed with an internal thread segment 222, stop payment bolt 23 locks for one and establish;

Utilizing elastic parts 24 to stop payment bolt 23 relatively in the described slide opening 22 shores a mobile jaw rod 25 is arranged, the bottom of this mobile jaw rod 25 is formed with an embedding hole 250 for ccontaining elastic parts 24, these mobile jaw rod 25 tops are formed with the support surface 251 that can paste to slide opening 22 limiting sections 221 in addition, what make that mobile jaw rod 25 can be in slide opening 22 stops

payment bolt

23 and 221 slippages of limiting section, these mobile jaw rod 25 tops are formed with an oblique surface 252 in addition again, allow spiral shell spare can push against this mobile jaw rod 25 (as shown in Figure 5) smoothly when reversing for monkey wrench, moreover mobile jaw rod 25 is formed with a clamping surface 253 in the periphery of contiguous oblique surface 252, when mobile jaw rod 25 is limited in slide opening 22 tops, this clamping surface 253 can compress the central point below of the corresponding parallel edges of spiral shell spare, in addition, this mobile jaw rod 25 is formed with an open-work 26 in clamping surface 253 belows, for movable jaw 15 actions, when cooperating small-sized spiral shell spare, make clamping surface 253 still can be pressed against the central point below (as shown in Figure 6) of the corresponding parallel edges of small-sized spiral shell spare;

Tooth-strip part 16 front ends of above-mentioned movable jaw 15 have protruded out a push rod 17, these push rod 17 bottom surfaces are formed with an oblique surface 18, allow movable jaw 15 when folder is pulled small-sized spiral shell spare, push rod 17 can penetrate the open-work 26 of mobile jaw rod 25, and utilize oblique surface 18 to press down mobile jaw rod 25, make the clamping surface 253 of mobile jaw rod 25 still can be pressed against the central point below (as shown in Figure 6) of the corresponding parallel edges of small-sized spiral shell spare, so that reverse;

Whereby, group constitutes the monkey wrench of a simple in structure and tool movement in one direction function that spacing property is good.

As for practice of the present utility model, then shown in Fig. 4,5, when the user turns to monkey wrench when differing from mobile jaw rod 25 1 sides, mobile jaw rod 25 can utilize clamping surface 253 to compress the parallel edges of spiral shell spare, the parallel edges of spiral shell spare opposite side then can be resisted against the clamping surface of movable jaw 15, allow monkey wrench can utilize the mobile jaw rod 25 and the clamping surface 253 of movable jaw 15 to clamp spiral shell spare, and then drive the rotation of spiral shell spare.

Otherwise, when the user returns monkey wrench, spiral shell spare can corresponding enter in the inner concave 21 of fixed jaw 11, and the oblique surface 252 of further ejection mobile jaw rod 25, make and move elasticity of compression assembly 24 in the mobile jaw rod 25, so promptly reach the idle running purpose that does not drive spiral shell spare, and after crossing the parallel edges of spiral shell spare, can utilize elastic parts 24 that mobile jaw rod 25 is released, in order to the operation of next circulation.

Moreover, when running into small-sized spiral shell spare, then as shown in Figure 6, movable jaw 15 is moved to fixed jaw 11, the push rod 17 of movable jaw 15 tooth-strip parts 16 front ends can be penetrated in the open-work 26 of mobile jaw rod 25, and utilize oblique surface 18 to press down mobile jaw rod 25, make the clamping surface 253 of mobile jaw rod 25 still can be pressed against the central point below (as shown in Figure 6) of the corresponding parallel edges of small-sized spiral shell spare, so it also can apply on the revolution demand of small-sized spiral shell spare.

Via above-mentioned explanation as can be known, but the utility model is compared to the monkey wrench of existing movement in one direction, really the effect that has simplified structure, and can save the manufacturing and the inventory cost of part, be easy to assembling simultaneously, moreover its folder polarization of pulling is good, the phenomenon of slippage takes place in effectively preventing to rotate, and can apply on the small-sized spiral shell spare, not only have the effect that promotes ease of use, more can increase its surcharge.

Claims

1, a kind of monkey wrench of tool movement in one direction function, it has the handle bar of an elongated rod shape, and this a handle bar wherein end is formed with a fixed jaw, and is provided with a worm screw in the handle bar, and this worm screw drives a movable jaw relative fixed jaw and closes or separate; It is characterized in that:

Described fixed jaw is provided with a folder rotation structure, and this folder rotation structure forms one for the direct rotating inner concave of spiral shell spare in the fixed jaw medial surface, moreover is formed with a slide opening on the fixed jaw, and this slide opening is formed with the openend of a tool limiting section at corresponding inner concave;

In addition, be provided with the automatically reset mobile jaw rod that to make progress in this slide opening, this mobile jaw rod top is formed with the support surface that can paste to the slide opening limiting section, the corresponding movable jaw of this mobile jaw rod side is formed with an oblique surface in the adjacent top end place again, and mobile jaw rod is formed with the clamping surface of a relative movable jaw clamping surface in the periphery of contiguous oblique surface, and this clamping surface compresses below the central point of the corresponding parallel edges of spiral shell spare.

2, have the monkey wrench of movement in one direction function according to claim 1, it is characterized in that: the slide opening other end of described fixed jaw is formed with an internal thread segment, and this internal thread segment lock is established a bolt of stopping payment for the spacing usefulness of mobile jaw rod.

3, have the monkey wrench of movement in one direction function as claimed in claim 1 or 2, it is characterized in that: described mobile jaw rod bottom and stopping payment is provided with an elastic parts that can upwards reset automatically for mobile jaw rod between bolt.

4, have the monkey wrench of movement in one direction function according to claim 1, it is characterized in that: described mobile jaw rod is formed with an open-work in the clamping surface below, described movable jaw front end has protruded out a push rod, this push rod bottom surface is formed with an oblique surface, when movable jaw when folder is pulled small-sized spiral shell spare, push rod penetrates open-work, and its oblique surface presses down mobile jaw rod, and the clamping surface of mobile jaw rod is pressed against below the central point of the corresponding parallel edges of small-sized spiral shell spare.