CN2868568Y

CN2868568Y - Portable adjustable wrench

Info

Publication number: CN2868568Y
Application number: CN 200620068575
Authority: CN
Inventors: 朱拥军
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-18
Filing date: 2006-01-18
Publication date: 2007-02-14
Anticipated expiration: 2016-01-18

Abstract

The utility model relates to a structural improvement of active wrench, pertains to the technique field of hardware tools. The wrench comprises a handle whose one end is fixed with hook-shaped wrench head. A worm is arranged in guiding groove which is the joint of said handle and wrench head. An active opening whose one side is set with worm teeth is arranged in the guiding groove and forms mobile auxiliary, and is engaged with the worm. The improvements are: said handle has guiding groove along direction of length. A rotating screw rod whose front end is connected with the worm through a rotating drive mechanism is arranged in the guiding groove. A pushbutton component whose lower end inserts to the threads of the screw rod is arranged in cover plate groove. When in use, as long as using finger to push the pushbutton, the utility model can drive the rotation of the screw rod so as to drive the worm to rotate through gear driving mechanism of the front end, and further drive the active opening move along the guiding groove to achieve the purpose of adjusting the size of the wrench opening. Obviously the utility model is novel and reasonable in structure, reliable and practical, and is more convenient and faster than traditional wrench to operate and without any phenomenon of jamming.

Description

The portable type adjustable wrench

Technical field

The utility model relates to a kind of spanner, and especially a kind of architecture advances of adjustable wrench belongs to the hardware ﹠ tools technical field.

Background technology

Adjustable wrench is that necessary tool is assembled, repaired, safeguards to various civil and military plant equipment, and at numerous areas such as building, automobile space flight, and even family all is widely used.

The existing hundreds of years history of tradition adjustable wrench, its structure is well-known.During use, need drive away with thumb and forefinger and change the worm gear rotation, the size of regulating the spanner opening, repeatable operation makes the people feel convenient inadequately.

Operation for convenience, people have carried out many trials in the innovation of adjustable wrench structure.For example, the someone has designed and at shank belt transmission has been installed and drives the spanner that worm gear rotates, and its obvious defects is that belt expands with heat and contract with cold can't operate as normal.And for example, the someone has innovated at shank the spanner that guiding push rod driven gear rotates has been installed, but there is following problem in this drive mechanism: 1, because two angular wheel contact precisions are difficult to guarantee that push rod promotes difficulty; 2, cover plate nonintegrated structure, poor rigidity is damaged easily.For another example, having the people to dash at the tail end of trigger piece has plum blossom to replace double offset ring spanner, but when the hand guard glove that adds is higher than the plane of handle tail, can't use.Therefore, up to now, traditional adjustable wrench is not eliminated always.

The utility model content

The purpose of this utility model is: at the shortcoming that above traditional adjustable wrench exists, propose a kind of spanner openings of sizes and regulate the very fast adjustable wrench of portable type easily.

In order to reach above purpose, portable type adjustable wrench of the present utility model comprises the handle of the fixing hook-shaped spanner of an end, in the guide groove of described handle and spanner junction worm screw is housed, the movable port that one side is shaped on wrom tooth is contained in the guide groove, form moving sets, and and worm engaging, its improvements exist: be shaped on chute along its length on the described handle, rotatable screw rod is housed in the described chute, the front end of described screw rod is connected with worm screw by rotating actuator, and the push button assembly that screw flight is inserted in the lower end is housed in the described chute.

During use,, can order about the screw rod rotation, rotate, and then drive movable port and move, reach the purpose of regulating the spanner openings of sizes along guide groove thereby the gear drive by its front end drives worm screw as long as with promoting push button before and after the finger.

Obviously, the utility model novel and reasonable structure, reliable and practical, it is more convenient more fast than conventional spanner to operate, and does not have any jam phenomenon.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the structural representation of the utility model embodiment one.

Fig. 2 is the cutaway view of Fig. 1.

Fig. 3 is the partial enlarged view of Fig. 1.

Fig. 4 is the partial enlarged view of Fig. 2.

Fig. 5 is the partial enlarged view of the utility model embodiment two.

Fig. 6 is the partial enlarged view of the utility model embodiment three.

Fig. 7 is the zoomed-in view of the covering plate structure of Fig. 1 embodiment.

The specific embodiment

Embodiment one

The portable type adjustable wrench of present embodiment as depicted in figs. 1 and 2, the corresponding label of each part is as follows among the figure: handle 1, worm screw 2, movable port 3, passive bevel gear 4, locking nut 5, the spacing card 6 of push rod, initiatively roller gear 7, buffer spring 8, stop screw 9, adjustment screw 10, tensioning spring 11, ratchet 12, plum blossom ratchet sleeve 13, ball screw 14, push button lock tube 15, half-round head screw 16, push button 17, Aluminum cover 18, fixed screw 19, sleeve 20, jump ring 21, steel ball 22.

As seen from the figure, an end and the hook-shaped spanner of handle 1 are connected as a single entity, and handle 1 is shaped on guide groove with the junction of spanner, and rotatable worm screw 2 wherein is housed.One side of movable port 3 is shaped on wrom tooth, is contained in and forms moving sets in the guide groove, and mesh with worm screw 2.Lower end of worm screw 2 and passive bevel gear 4 are connected, and by locking nut 5 axial lockings, stop screw 9 can be eliminated axial motion.Have caulking groove along its length on the handle 1, the fluting Aluminum cover 18 (referring to Fig. 7) that integral die-cast is shaped is housed in this caulking groove, and rotatable ball screw 14 is housed by the front and back feet of this cover plate 18, the front end of this ball screw is connected with active roller gear 7, and in the middle of a feet of cover plate the spacing card 6 of push rod is housed.This is roller gear 7 and passive bevel gear 4 engagements initiatively, thereby ball screw 14 is connected with worm screw 2 by gear drive.What deserves to be mentioned is, as adopting conventional two bevel gears (being conical gear) transmission, be easy to because of axially loaded play clamping stagnation, present embodiment adopts roller gear and bevel gear transmission herein, simply and cleverly solved the clamping stagnation problem, made that the adjusting of pulling mouth is very smooth.Fixedly have the Aluminum cover of chute on the caulking groove by fixed screw 19, the push button 17 (referring to Fig. 4) of slip is housed in this chute, the half-round head screw 16 of precession push button lock tube 15 is housed in the mider hole of this push button, and the semicircle concave crown of this screw lower end firmly inserts the steel ball 22 of ball screw screw thread.

Therefore, as long as with promoting push button 17 before and after the finger, can order about ball screw 14 rotations by the steel ball 22 of half-round head screw 16 and lower end thereof, thereby the gear drive by its front end drives worm screw 2 rotations, and then drive movable port 3 and move along guide groove, reach the purpose of regulating the spanner openings of sizes, it is convenient fast to operate, and does not have any jam phenomenon.

In addition, rotatable plum blossom ratchet sleeve 13 (referring to Fig. 3) by jump ring 21 axial limitings is housed in the circular hole of handle 1 tail end of present embodiment, the ratchet 12 with ratchet engaged is equipped with in the outside of this ratchet sleeve 13, one end of this ratchet is against on the tensioning spring 11, and the outer end of tensioning spring 11 is conditioned screw 10 location.Therefore, except spanner can use, the handle tail end of present embodiment can also be as double offset ring spanner with ratchet, (was commonly called as and held little dead angle degree under the arm) in narrow and small operating space and also can use, thereby make the adjustable wrench of present embodiment have multi-functional.

Embodiment two

The portable type adjustable wrench basic structure of present embodiment is identical with embodiment one, difference as shown in Figure 5, it is the latch 16 of bulb that the lower end is housed in the mider hole of push button 17, its bulb inserts in the screw thread of ball screw 14.Like this, the structure of push button assembly is more simple.

Embodiment three

The portable type adjustable wrench basic structure of present embodiment is also identical with embodiment one, difference as shown in Figure 6, the half-round head screw 16 of precession push button locking plate 15 is housed in the mider hole of push button 17, and this screw lower end so also can make structure obtain simplifying for inserting the bulb of ball screw 14 screw threads.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. portable type adjustable wrench, the handle that comprises the fixing hook-shaped spanner of an end, in the guide groove of described handle and spanner junction worm screw is housed, the movable port that one side is shaped on wrom tooth is contained in the guide groove, forms moving sets, and and worm engaging, it is characterized in that: be shaped on chute along its length on the described handle, rotatable screw rod is housed in the described chute, and the front end of described screw rod is connected with worm screw by rotating actuator, and the push button assembly that screw flight is inserted in the lower end is housed in the described chute.

2. according to the described portable type adjustable wrench of claim 1, it is characterized in that: rotatable plum blossom ratchet sleeve is housed in the circular hole of described handle tail end, and the ratchet with ratchet engaged is equipped with in the outside of described ratchet sleeve.

3. according to claim 1 or 2 described portable type adjustable wrench, it is characterized in that: lower end of described worm screw and passive bevel gear are connected, the front end of described screw rod is connected with the active roller gear, described active roller gear and the engagement of passive bevel gear, described screw rod is connected with worm screw by gear drive.

4. according to the described portable type adjustable wrench of claim 3, it is characterized in that: have caulking groove along its length on the described handle, be fixed with the cover plate that the integral die-cast shaping has chute on the described caulking groove, and rotatable ball screw is housed by the front and back feet of described cover plate, the push button of slip is housed in the described chute, the screw of precession push button lock tube is housed in the mider hole of described push button, and the semicircle concave crown of described screw lower end firmly inserts the steel ball of described ball screw screw thread.

5. according to the described portable type adjustable wrench of claim 3, it is characterized in that: the latch that the lower end is a bulb is housed in the mider hole of described push button, and described bulb inserts in the described screw flight.

6. according to the described portable type adjustable wrench of claim 3, it is characterized in that: the screw of precession push button locking plate is housed in the mider hole of described push button, and described screw lower end is for inserting the bulb of described screw flight.