CN205889076U

CN205889076U - Electricity movable sleeve spanner

Info

Publication number: CN205889076U
Application number: CN201620880826.6U
Authority: CN
Inventors: 唐国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2017-01-18
Anticipated expiration: 2026-08-12

Abstract

The utility model discloses an electricity movable sleeve spanner, be annular shell, be in rather than fixed connection's sleeve pipe and fixed connection including the cross section the handle of sleeve pipe lower extreme, be equipped with first gear, second gear in the shell, first gear with shell axial direction is the same, a gear center is equipped with and is used for installing telescopic counter bore, a second gear and a gear engagement to form diaxon vertically drive gear group, the intraductal transfer line that is equipped with of cover, the transfer line with the second gear is coaxial, the bottom of transfer line extends to in the handle, be equipped with the motor in the handle, the motor with the transfer line is connected. The utility model discloses use diaxon vertically drive gear group structure transmission power, be applicable to the operation of narrow space, simple structure can conveniently change the sleeve of different models, electronic and manual can freely the switching is applicable to different operation environment.

Description

A kind of electric socket wrench

Technical field

This utility model is related to a kind of instrument screwing or unclamping screw or nut, and more particularly, to a kind of electric sleeve barrel is pulled Handss.

Background technology

Box spanner is that by multiple sleeves with hexagon ring or 12 corner apertures and be furnished with the multiple accessories group such as handle, extension bar Become, be particularly well-suited to twist that status is very narrow and small or the bolt of depression very deep or nut.In order to laborsaving and improve work efficiency, Also have, in prior art, the box spanner using motorized motions, but because its volume is larger, sleeve and drive shaft are in same straight line On, cause the driving structure perpendicular to bolt or nut longer, be only suitable for using in more spacious space, but in narrow space Place cannot use.

Utility model content

This utility model devises a kind of electric socket wrench for the deficiencies in the prior art it is therefore an objective to provide a kind of structure Simple it is adaptable to the electric socket wrench that uses of narrow space.

This utility model is to realize object above, using following scheme: a kind of electric socket wrench, is ring including cross section The shell of shape, be secured to the sleeve pipe that connects and the handle that is fixedly connected on described sleeve pipe lower end it is characterised in that: described shell Inside it is provided with first gear, second gear, described first gear is identical with described shell axial direction, and described first gear center sets There is the counterbore for installation set cylinder, described second gear is engaged with described first gear, and form the vertical travelling gear of two axles Group, is provided with drive link in described sleeve pipe, and described drive link is coaxial with described second gear, and the bottom of described drive link extends to institute State in handle, in described handle, be provided with motor, described motor is connected with described drive link.

As further improvement of the utility model, described first gear is worm gear, and described second gear is worm screw.

Preferably, described drive link axle is respectively equipped with thrust bearing on the position at described worm screw two ends, is used for holding By the axial force of described worm screw, limit the axial displacement of described worm screw.

Preferably, the lead angle of described worm screw is less than the equivalent friction angle of engagement wheel between cog, so that worm and gear group is realized certainly Lock function, that is, worm screw can drive worm gear wheel, and worm gear cannot drive worm screw rotate, realize no external power supply when use manually The function of this instrument.

As another kind of improvement of the present utility model, described first gear is basin tooth, and described second gear is cone tooth.

Preferably, described counterbore cross section is regular hexagon, for coordinating corresponding sleeve to install.

Preferably, described counterbore inwall is provided with positioning bead, and the pothole cooperation of sleeve outer wall, for fixes sleeve.

This utility model contrast prior art can achieve following beneficial effect: using the driving gear set structure that two axles are vertical Transfer motion power, is applicable to narrow space operation；Structure is simple, the sleeve of conveniently replaced different model；Electronic and manually may be used Free switching is it is adaptable to different operating environment.

Brief description

Fig. 1 is the first embodiment structural representation of this utility model；

Fig. 2 is this utility model second embodiment structural representation；

Fig. 3 is this utility model matching used sleeve schematic diagram.

Specific embodiment

A kind of electric socket wrench as shown in Figure 1, is annular shell 11, is secured to the set of connection including cross section Pipe 12 and the handle 13 being fixedly connected on described sleeve pipe 12 lower end, are provided with first gear, second gear, this reality in described shell 11 Apply in mode, described first gear is worm gear 21, described second gear is worm screw 31, described worm gear 21 is with described shell 11 axially Direction is identical, and described worm gear 21 center is provided with the counterbore 41 for installing sleeve, and described counterbore 41 cross section is regular hexagon, uses In coordinating corresponding sleeve to install, described counterbore 41 inwall is provided with positioning bead 42, and the pothole cooperation of sleeve outer wall, for solid Determine sleeve.Described worm gear 21 is engaged with described worm screw 31, and forms the vertical driving gear set of two axles, is provided with described sleeve pipe 12 Drive link 5, described drive link 5 is coaxial with described worm screw 31, and the bottom of described drive link 5 extends in described handle 13, described It is provided with motor 6, described motor 6 is connected with described drive link 5 in handle 13.Near 31 liang of described worm screw on described drive link 5 axle It is respectively equipped with thrust bearing 51,52 on the position at end, for bearing the axial force of described worm screw 31, limit the axle of described worm screw 31 To displacement.The lead angle of described worm screw 31 is less than the equivalent friction angle of engagement wheel between cog, makes worm and gear group realize auto-lock function, I.e. worm screw 31 can drive worm gear 21 to rotate, and worm gear 21 cannot drive worm screw 31 to rotate, realize no external power supply when make manually Function with this instrument.

It is illustrated in figure 2 another embodiment of the present utility model, its structure is pulled with a kind of electric sleeve barrel shown in Fig. 1 Handss are essentially identical, and its difference is that described first gear, second gear replace with basin tooth 22, cone tooth 32, the enforcement with Fig. 1 Mode is compared, there is provided different transmissions when moment of torsion, chooses according to demand, can adapt to the needs to torsion and rotating speed.

It is illustrated in figure 3 matching used sleeve schematic diagram.Described sleeve 7 outer wall is provided with circular pothole 71, will during use Have pothole 71 in the face of accurate described counterbore 41 have positioning bead 42 inwall face, then sleeve 7 is inserted described counterbore 41, Until described positioning bead 42 snaps in described pothole 71.The sleeve of different model can be changed according to the concrete model of bolt and nut.

The above is only preferred implementation of the present utility model it is noted that common skill for the art For art personnel, on the premise of without departing from this utility model know-why, some improvement and modification can also be made, these change Enter and also should be regarded as protection domain of the present utility model with modification.

Claims

1. a kind of electric socket wrench, is annular shell (11), is secured to the sleeve pipe (12) of connection and solid including cross section Surely be connected to the handle (13) of described sleeve pipe (12) lower end it is characterised in that: be provided with described shell (11) first gear, second Gear, described first gear is identical with described shell (11) axial direction, and described first gear center is provided with for installing sleeve Counterbore (41), described second gear is engaged with described first gear, and forms the vertical driving gear set of two axles, described sleeve pipe (12) it is provided with drive link (5) in, described drive link (5) is coaxial with described second gear, and the bottom of described drive link (5) extends to In described handle (13), it is provided with motor (6) in described handle (13), described motor (6) is connected with described drive link (5).

2. as claimed in claim 1 a kind of electric socket wrench it is characterised in that: described first gear be worm gear (21), institute Stating second gear is worm screw (31).

3. as claimed in claim 2 a kind of electric socket wrench it is characterised in that: near described on described drive link (5) axle Thrust bearing (51,52) is respectively equipped with the position at worm screw (31) two ends.

4. as claimed in claim 2 a kind of electric socket wrench it is characterised in that: the lead angle of described worm screw (31) be less than nibble Close the equivalent friction angle of wheel between cog.

5. as claimed in claim 1 a kind of electric socket wrench it is characterised in that: described first gear be basin tooth (22), institute Stating second gear is cone tooth (32).

6. as claimed in claim 1 a kind of electric socket wrench it is characterised in that: described counterbore (41) cross section be positive six sides Shape.

7. as claimed in claim 6 a kind of electric socket wrench it is characterised in that: described counterbore (41) inwall is provided with positioning Pearl (42).