CN2698524Y

CN2698524Y - Combined wrench

Info

Publication number: CN2698524Y
Application number: CN 200420026913
Authority: CN
Inventors: 孙奎洲
Original assignee: Jiangsu University of Technology
Current assignee: Jiangsu University of Technology
Priority date: 2004-05-04
Filing date: 2004-05-04
Publication date: 2005-05-11
Anticipated expiration: 2014-05-04

Abstract

The utility model relates to a combined spanner, comprising a spanner, a push rod seat and a push rod. The spanner is composed of a bush and a hollow handle connected with the rear part of the bush, a cutter head aperture is arranged on the wall of the connecting part of the bush and the hollow handle, and the push rod seat is screwed on the rear end of the hollow handle of the spanner. The push rod is arranged in a public cavity formed by the cavity of the hollow handle and the cavity of the push rod seat, a cutter head arranged on the front end of the push rod can be inserted into the bush through the cutter head on the bush, and the rear end of the push rod can abut against the bottom of the push rod seat. The utility model can easily disasseble the worn bolts or nuts under the condition that the cutter head of the push rod tightly abut against the head of the worn bolts or nuts, and the worn bolts and nuts can be disassemled by rotating the spanner; besides, the spanner can be used for assemble and disassemble normal bolts and nuts.

Description

Combination wrench

Technical field

The utility model relates to a kind of combination wrench.

Background technology

Spanner is used for tightening or dismantles hexagon, square screw and various nut, is a kind of modal hand tools.Common wrench is skidded when the dismounting screw that is worn of corner angle or nut easily, even can't turn.

The utility model content

The purpose of this utility model is to propose a kind of screw of dismounting wearing and tearing or combination wrench of nut of being applicable to.

For achieving the above object, the utility model is taked following technical scheme:

The utility model comprises spanner, tip-lever support and push rod; Described spanner is made up of sleeve and the hollow handle body that is connected the sleeve rear portion, and the wall that sleeve is connected with the hollow handle body is provided with the cutter head hole; Tip-lever support is threaded in the rear end of the hollow handle body of spanner; Push rod is arranged in the system chamber that the chamber by the chamber of hollow handle body and tip-lever support forms, and the front end of push rod is a cutter head, and cutter head can stretch into sleeve by the cutter head hole on the sleeve, and the rear end of push rod can be supported and the tip-lever support bottom.

The sleeve of above-mentioned spanner is interior Hexagonal jacket.

The bottom of above-mentioned tip-lever support is provided with through hole, and the rear portion of push rod is provided with the extension rod of one with it, and extension rod can stretch out tip-lever support by the through hole of tip-lever support.

The combinations thereof spanner also is equipped with the outer-hexagonal shape inner sleeve in the interior Hexagonal jacket that can place spanner, and a side of outer-hexagonal shape inner sleeve is provided with the cutter head hole that the cutter head that can hold push rod passes through.

Described push rod is made up of the preceding push rod of front portion and the back push rod at rear portion, and the cutter head of above-mentioned push rod front end promptly becomes the cutter head of sinciput bar front end, and the extension rod of push rod rear end promptly becomes the extension rod of push rod rear end, back.

The utlity model has following good effect:

1, the utility model tightly props up by the cutter head by push rod on the screw head or nut of wearing and tearing, with screw or nut dismounting, the screw or the nut of dismounting wearing and tearing are become easily, and spanner can be used for the loading and unloading of normal screw or nut by rotating spanner.

2, the utility model is provided with outer-hexagonal shape inner sleeve in the interior hexagon sleeve of spanner, makes the utility model can adapt to the dismounting of the screw or the nut of plurality of specifications.

3, the push rod rear end has extension rod, can the cutter head of push rod be embedded on the head or nut of screw with hammer hammering extension rod, makes things convenient for the dismounting for the screw or the nut of heavy wear.

4, push rod is made up of preceding push rod and back push rod, and push rod and back push rod reduce use cost before can changing respectively.

Description of drawings

Fig. 1 is embodiment 1 configuration diagram;

Fig. 2 is embodiment 2 configuration diagram;

Fig. 3 is embodiment 3 configuration diagram.

The specific embodiment

Embodiment 1 shown in Figure 1 comprises spanner 1, (spanner 1 and tip-lever support 2 among the figure all adopt perspective cut away view for tip-lever support 2 and push rod 3, omitted second half), the hollow handle body 1-2 at spanner 1 Hexagonal jacket 1-1 rear portion by interior Hexagonal jacket 1-1 with in being connected forms, the wall that sleeve 1-1 is connected with hollow handle body 1-2 is provided with cutter head hole 1-11, tip-lever support 2 is threaded in the rear end of hollow handle body 1-2, push rod 3 places in the system chamber that the chamber 2-1 by the chamber 1-21 of hollow handle body 1-2 and tip-lever support 2 forms, the front end of push rod 3 is cutter head 3-11, cutter head 3-11 is taper or wedge shape, cutter head 3-11 can insert among the sleeve 1-1 by the cutter head hole 1-11 on the sleeve 1-1, and the rear end of push rod 3 can be supported and tip-lever support 2 bottom 2-2.Sleeve 1-1 with spanner 1 during use is enclosed within on the screw head or nut that has worn and torn, push rod 3 places in the system chamber that the chamber 2-1 by the chamber 1-21 of hollow handle body 1-2 and tip-lever support 2 forms, turn tip-lever support 2, promote push rod 3 reaches by tip-lever support bottom 2-2, the cutter head 3-11 of push rod 3 stretches in the sleeve 1-1 by the cutter head hole 1-11 of wrench socket 1-1, be against on screw head or the nut side, continue to screw tip-lever support 2, cutter head 3-11 tightly props up on screw head or the nut, can not retreat when making cutter head 3-11 stressed, rotating spanner can be with screw or nut dismounting.Cutter head 3-11 can pull down and carry out sharpening after repeatedly using wearing and tearing.

Embodiment 2 shown in Figure 2 is provided with through hole 2-3 in the bottom of tip-lever support 2 on the basis of embodiment 1, the rear portion of push rod 3 is provided with the extension rod 4 of one with it, and extension rod 4 can stretch out tip-lever support 2 by the through hole 2-3 of tip-lever support 2.Sleeve 1-1 with spanner 1 during use is enclosed within on the screw head or nut that has worn and torn, screws tip-lever support 2, is exposed at the extension rod 4 of tip-lever support 2 outsides with the hand hammer hammering, cutter head 3-11 is embedded in the nut that has worn and torn, tighten tip-lever support 2 once more, rotating spanner 1 is backed out the nut that has worn and torn.Present embodiment makes things convenient for the dismounting of the screw or the nut of heavy wear.For what be difficult to back out, can connect an afterburning sleeve at tip-lever support 2 rear portions with spanner 1.Present embodiment also is equipped with at least 1 outer-hexagonal shape inner sleeve 5 in the sleeve 1-1 that can place spanner 1, and a side of outer-hexagonal shape inner sleeve 5 is provided with the cutter head hole 5-1 that the cutter head 3-1 that can hold push rod 3 passes through.The cutter head 3-11 of push rod stretches into wrench socket 1-1 by the cutter head hole 1-11 of wrench socket 1-1 and the cutter head hole 5-1 of inner sleeve 5.Because the internal diameter of a plurality of inner sleeves 5 is different, if the sleeve of spanner 1 is the nut of suitable dismounting M24mm, then wherein an inner sleeve 5 can be dismantled the M20mm nut, and another inner sleeve 5 can be dismantled the M16mm nut, can make the combination wrench be applicable to the dismounting of the screw or the nut of plurality of specifications like this.

Embodiment 3 shown in Figure 3, comprise spanner 1, tip-lever support 2 and push rod 3, the hollow handle body 1-2 at spanner 1 Hexagonal jacket 1-1 rear portion by interior Hexagonal jacket 1-1 with in being connected forms, the wall that sleeve 1-1 is connected with hollow handle body 1-2 is provided with cutter head hole 1-11, tip-lever support 2 is threaded in the rear end of hollow handle body 1-2, push rod 3 places in the system chamber that the chamber 2-1 of the chamber 1-21 of hollow handle body 1-2 and tip-lever support 2 forms, push rod 3 is made up of preceding push rod 3-1 and back push rod 3-2, the front end of preceding push rod 3-1 is cutter head 3-1, and cutter head 3-11 can insert among the sleeve 1-1 by the cutter head hole 1-11 on the sleeve 1-1.The rear end of back push rod 3-2 can be supported and reach tip-lever support 2 bottom 2-2 and be provided with the extension rod 4 of one with it in the rear end, and extension rod 4 can stretch out tip-lever support 2 by the through hole 2-2 of tip-lever support 2.Because cutter head 3-11 and extension rod 4 damage easily, push rod and back push rod before can changing respectively.In addition, it also is equipped with inner sleeve 5, is applicable to the dismounting of the screw or the nut of plurality of specifications.

Claims

1, a kind of combination wrench comprises spanner (1), it is characterized in that: it also comprises tip-lever support (2) and push rod (3); Described spanner (1) is made up of sleeve (1-1) and the hollow handle body (1-2) that is connected sleeve (1-1) rear portion, and the wall that sleeve (1-1) is connected with hollow handle body (1-2) is provided with cutter head hole (1-11); Tip-lever support (2) is threaded in the rear end of the hollow handle body (1-2) of spanner (1); Push rod (3) is arranged in the system chamber that the chamber (2-1) by the chamber (1-21) of hollow handle body (1-2) and tip-lever support (2) forms, the front end of push rod (3) is cutter head (3-11), cutter head (3-11) can stretch into sleeve (1-1) by the cutter head hole (1-11) on the sleeve (1-1), and the rear end of push rod (3) can be supported and tip-lever support (2) bottom (2-2).

2, combination wrench according to claim 1 is characterized in that: the sleeve (1-1) of spanner (1) is interior Hexagonal jacket.

3, combination wrench according to claim 2, it is characterized in that: the bottom of tip-lever support (2) is provided with through hole (2-3), the rear portion of push rod (3) is provided with the extension rod of one (4) with it, and extension rod (4) can stretch out tip-lever support (2) by the through hole (2-3) of tip-lever support (2).

4, according to claim 1,2 or 3 described combination wrenches, it is characterized in that: combination wrench also is equipped with the outer-hexagonal shape inner sleeve (5) in the interior Hexagonal jacket (1-1) that can place spanner (1), and a side of outer-hexagonal shape inner sleeve (5) is provided with the cutter head hole (5-1) that the cutter head (3-11) that can hold push rod (3) passes through.

5, combination wrench according to claim 4, it is characterized in that: described push rod (3) is made up of preceding push rod (3-1) and back push rod (3-2), the cutter head (3-11) of above-mentioned push rod (3) front end promptly becomes the cutter head (3-11) of sinciput bar (3-1) front end, and the extension rod (4) of push rod (3) rear end promptly becomes the extension rod (4) of push rod (3-2) rear end, back.