CN104084915B - Top stationary adjustable wrench - Google Patents

Abstract

The invention discloses top stationary universal screw wrench, it comprises fixed wrench jaw (3) and adjustable wrench jaw (1), fixed wrench jaw is provided with T-shaped chute (4), low groove (12) is provided with in contiguous block, described adjustable wrench jaw is provided with the T-shaped slide block (10) that can slide in T-shaped chute, T-shaped slide block is provided with the upper groove (15) corresponding with low groove position, contiguous block is provided with the solid plate (6) in top, solid plate upper end, top has the round and smooth curved section be connected to form of three sections, left, center, right involute, solid plate lower end, top is connected with depression bar (9) entirety, positive stop (18) is provided with in upper groove one end, the solid plate in top is provided with spacing slotted eye (14), spacer pin (11) is provided with in contiguous block, the present invention is not only simple and compact for structure, adjustable wrench thickness also can do thinner, easily manufactured, and within the scope of maximal regulated, applicable different size nut uses, improve operating efficiency, enhance practicality, be not easy simultaneously damage and stuck, durability improves, result of use is closer to back-up wrench.

Description

Top stationary adjustable wrench

Technical field

The present invention relates to a kind of flight-line maintenance, dismounting and assembly tool, especially relate to top stationary adjustable wrench.

Background technology

As everyone knows, spanner a kind ofly utilizes lever principle to screw or unscrew the hand tools having angle screw or nut.It mainly contains: adjustable wrench, back-up wrench, double offset ring spanner, combination wrenches, hook spanner, box spanner, inner hexagon spanner, torque spanner, ratchet spanner etc., and wherein the application of adjustable wrench is the most general.As its name suggests, it can regulate the openings of sizes of pulling mouth to adjustable wrench, and A/F can be regulated within the scope of certain size, to adapt to the size of nut.Tradition adjustable wrench is with a long history, is invented, and use till today always by Dutchman 16 beginning of the century.Adjustable wrench is taken turns and handle composition primarily of fixed wrench jaw, adjustable wrench jaw, adjustment Snail.During use, pull mouth clamping nut, fixed wrench jaw is upper, adjustable wrench jaw under, right hand handle, and near fixed wrench jaw, to facilitate thumb constantly to rotate worm gear, regulate the A/F size of pulling mouth to adapt to nut, thus realize screwing or unscrewing of nut within the specific limits.

But in use there are some problems in this monkey wrench: one is there is certain interval between the tooth bar in screw rod and adjustable wrench jaw, during use, adjustable wrench jaw is stressed can loosen, between adjustable wrench jaw and fixed wrench jaw, distance size has change, for comparatively big nut, because the nut length of side is longer, the impact screwing or unscrew of the general nut of this change in size is little, and for comparatively primary nut, because its length of side is shorter, during rotary spanner, spanner can skid, thus this change in size will affect screwing of nut or unscrew, the angle of nut even can be caused to damage, two is when the spanner long period does not use, if do not carry out reasonable maintaining, bolt rotary will be not too flexible, even occurs stuck, cause adjustable wrench normally not use when corrosion is serious, three when changing use between large primary nut with same spanner, with hand rotating screw bolt continually, need use and seem cumbersome, four is that traditional adjustable wrench limits its thickness by Snail wheel diameter and is difficult to do thinner, moreover traditional adjustable wrench adjustable wrench jaw beat amount is comparatively large, easily causes the adjustable wrench jaw of adjustable wrench to damage.

Summary of the invention

For the problem in above-mentioned prior art existing for adjustable wrench, the invention provides one not need screw rod just can realize adjustable wrench jaw to move fast and fixedly secure, and practical, durability good, structure is simple, it is easy to apply and adjustable wrench jaw beat amount is little top stationary adjustable wrench.

Top of the present invention stationary universal screw wrench comprises fixed wrench jaw and adjustable wrench jaw, described fixed wrench jaw comprises the handle and contiguous block that entirety makes, described fixed wrench jaw is provided with T-shaped chute, low groove is provided with in described contiguous block, described adjustable wrench jaw is provided with the T-shaped slide block that can slide in T-shaped chute, described T-shaped slide block is provided with the upper groove corresponding with low groove position, described contiguous block is provided with the solid plate in the top can rotated in upper groove and low groove, solid plate upper end, top has the round and smooth curved section be connected to form of three sections, left, center, right involute, solid plate lower end, top is connected with depression bar entirety, upper groove is provided with positive stop in one end, the solid plate in top is provided with spacing slotted eye, the spacer pin running through spacing slotted eye is provided with in described contiguous block, when described depression bar turns left, adjustable wrench jaw can move in fixed wrench jaw, when depression bar turns right, adjustable wrench jaw can hold out against in fixed wrench jaw under the solid plate effect in top.

When the present invention uses, due to the effect of spacer pin, depression bar turns left low-angle, at this moment, solid plate upper end, top does not contact with the upper groove on T-shaped slide block, adjustable wrench jaw can movement fast in fixed wrench jaw, adjustable wrench clamping screw imperial mother, when depression bar being turned right to handle parallel position, solid plate upper end, top withstands on in the upper groove of T-shaped slide block, thus adjustable wrench jaw is held out against fixing, because adjustable wrench jaw and fixed wrench jaw distance can not change, thus do not need to regulate and just can screw the nut of same specification or unscrew, improve operating efficiency; The present invention also due to adjustable wrench jaw can be made to fix carrying out adjustment with fixed wrench jaw in larger distance, thus not only can be used for the larger nut of specification and uses, also the applicable nut compared with small dimension or unscrew, and enhances practicality; Simultaneously due to without threaded engagement, even if adjustable wrench long period not use and maintenance, also there will not be stuck phenomenon, improve the durability of adjustable wrench.

The present invention is compared with traditional adjustable wrench, not only simple and compact for structure, adjustable wrench thickness also can do thinner, easily manufactured, and within the scope of maximal regulated, applicable different size nut uses, improve operating efficiency, enhance practicality, be not easy simultaneously damage and stuck, durability is improved, during use to the quality effect of nut closer to back-up wrench.

Accompanying drawing explanation

Fig. 1 is main sectional structure schematic diagram of the present invention,

Fig. 2 is the A-A sectional structure enlarged diagram of Fig. 1,

Fig. 3 is the B-B sectional structure enlarged diagram of Fig. 1,

Fig. 4 is the C-C sectional structure enlarged diagram of Fig. 1,

Fig. 5 is the D-D sectional structure enlarged diagram of Fig. 1,

Fig. 6 is the solid plate contour structures enlarged diagram in top of the present invention,

Fig. 7 is the E-E sectional structure enlarged diagram of 6,

Fig. 8 is the I-I structure for amplifying schematic diagram of Fig. 1.

In figure, 1, adjustable wrench jaw 2, net grid 3, fixed wrench jaw 4, T-shaped chute 5, bearing pin 6, top solid plate 7, contiguous block 8, handle 9, depression bar 10, T-shaped slide block 11, spacer pin 12, low groove 13, left involute curve section 14, spacing slotted eye 15, upper groove 16, middle involute curve section 17, right involute curve section 18, positive stop.

Detailed description of the invention

At Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, in Fig. 7 and Fig. 8, Fig. 1 is adjustable wrench jaw and the structural representation of fixed wrench jaw when maximum, described top stationary universal screw wrench comprises the fixed wrench jaw 3 and adjustable wrench jaw 1 made with metal integral, adjustable wrench jaw and fixed wrench jaw face are provided with net grid 2(for increasing the frictional force of nut and its surface), described fixed wrench jaw comprises the handle 8 and contiguous block 7 that entirety makes, described fixed wrench jaw is provided with T-shaped chute 4(T shape slide block coordinate with the sliding mechanical of the T-shaped chute rectangle part of fixed wrench jaw also can be designed to circle or oval sliding mechanical coordinates), described adjustable wrench jaw is provided with the T-shaped slide block 10 that can slide in T-shaped chute, T-shaped slide block four right angle chamfering, comparatively small―gap suture is kept to coordinate between T-shaped slide block with T-shaped chute, gap length is to touch dynamic T-shaped slide block and T-shaped slide block can be made can be as the criterion at T-shaped slide with have gentle hands, low groove 12 is provided with in described contiguous block, described T-shaped slide block is provided with the upper groove 15 corresponding with low groove position, lower notches width is identical, with the solid plate 6 in top that bearing pin 5 can rotate for turning cylinder connects in upper groove and low groove on described contiguous block, solid plate upper end, top has the curved section that three sections, left, center, right involute is smoothly connected composition, solid plate lower end, top is connected with depression bar 9 entirety metal and makes, described curved section is by left involute curve section 13, middle involute curve section 16 and right involute curve section 17 are formed, left involute curve section curve comparatively rises suddenly, middle involute curve section curve is comparatively slow to be risen, right involute curve section circular arc is comparatively slow to fall, the solid plate thickness in top is slightly less than low groove and upper groove, the i.e. solid plate in top and upper, low groove leaves free gap between two sides, gap length should meet the solid plate in top can upper, freely rotate in low groove, positive stop 18 is provided with in described upper groove one end, positive stop height is not less than 1/2nd of upper groove height, positive stop effect carries out spacing when moving to maximum to adjustable wrench jaw, to slide out T-shaped chute and cause adjustable wrench jaw to drop to prevent continuation, the solid plate in described top is provided with spacing slotted eye 14, the spacer pin 11 running through spacing slotted eye is provided with in described contiguous block, space size in described contiguous block should not hinder effective rotation of the solid plate in top, before adjustable wrench uses, (the middle involute curve section now on the solid plate in top does not contact with low groove, adjustable wrench jaw is removable, but due to the effect of spacer pin, the depression bar angle that turns left is restricted, its rotational angle is less, middle involute curve section on the solid plate in top remains higher than positive stop, when adjustable wrench jaw and fixed wrench jaw are when maximum, due to the stop of positive stop, adjustable wrench jaw would not skid off from fixed wrench jaw, when described depression bar turns left, be separated with upper groove near middle involute curve section peak, adjustable wrench jaw can be upper mobile in fixed wrench jaw (T-shaped chute), when depression bar turns right, start and upper groove contact near middle involute curve section peak, to peak, groove top power is reached maximum, adjustable wrench jaw holds out against and is fixed in fixed wrench jaw (T-shaped chute) under the solid plate effect in top.Turn right an a small amount of again, and now contact point is at the initiating terminal of right involute, although power of at this moment pushing up reduces an a small amount of than maximum, can obtain a stable state, also can not flick left even if now unclamp hand pressure handle.When adjustable wrench jaw will be taken out, extract spacer pin, the solid plate in top is turned left, and (now, involute curve section is lower than positive stop for wide-angle, positive stop is inoperative), middle involute curve fragment position on the solid plate in top is reduced, and left involute right-hand member also decreases, and left involute left end is in extreme lower position when starting, though now slightly rise but still lower than positive stop, adjustable wrench jaw just can be taken out easily.Certainly in order to make adjustable wrench jaw not landing, the stopping means of other structure also can be set, as arranged the version of spacing slotted eye and spacer pin on T-shaped slide block.

Claims (1)

1. push up stationary universal screw wrench, it comprises fixed wrench jaw (3) and adjustable wrench jaw (1), described fixed wrench jaw comprises the handle (8) and contiguous block (7) that entirety makes, it is characterized in that: described fixed wrench jaw is provided with T-shaped chute (4), low groove (12) is provided with in described contiguous block, described adjustable wrench jaw is provided with the T-shaped slide block (10) that can slide in T-shaped chute, described T-shaped slide block is provided with the upper groove (15) corresponding with low groove position, described contiguous block is provided with the solid plate (6) in the top can rotated in upper groove and low groove, solid plate upper end, top has the round and smooth curved section be connected to form of three sections, left, center, right involute, solid plate lower end, top is connected with depression bar (9) entirety, positive stop (18) is provided with in upper groove one end, the solid plate in top is provided with spacing slotted eye (14), the spacer pin (11) running through spacing slotted eye is provided with in described contiguous block, when described depression bar turns left, adjustable wrench jaw can move in fixed wrench jaw, when depression bar turns right, adjustable wrench jaw can hold out against in fixed wrench jaw under the solid plate effect in top.