CN2294139Y

CN2294139Y - Screwdriver having multiple substituted tool pieces and able to change its length

Info

Publication number: CN2294139Y
Application number: CN 97234704
Authority: CN
Inventors: 林庆洲
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-03
Filing date: 1997-06-03
Publication date: 1998-10-14
Anticipated expiration: 2007-06-03

Abstract

The utility model relates to a screwdriver with the functions of replacing various tool heads and changing usage length, which comprises a handle, wherein one end of the handle adopts the structure that a control base and a control ring are used for positioning and adjusting the expansion and the retraction of an angular tube body, the outer end of the angular tube body is matched with an outer sleeve pipe, the outer sleeve and the angular tube body are provided with bead bodies matched with positioning holes, and then, the outer sleeve can expand and retract. Under the adoption of the structure, a screwdriver group can be matched with the tool heads of different sizes to use and the length of the screwdriver group can be changed to satisfy requirements.

Description

The screwdriver of length is used in replaceable multiple tool heads and conversion

The utility model relates to a kind of hand-held tool group, specifically, is meant the screwdriver of a kind of replaceable tool heads that varies in size and conversion use length.

Screwdriver structure (consulting shown in Figure 1) commonly used, it comprises a shank, and a wherein end of this shank is compeled cover one control to device, and this control is extended a sleeve again to the other end of device, and this sleeve ends tool horn shape heart hole can be loaded a driver bit and form the working end; This control promptly is used for controlling turning to of this working end to device, so that shank produces the structure action that drives working end or idle running voluntarily.

The control of this kind screwdriver commonly used is to connect this sleeve admittedly to device, and control is compeled to be inserted in the shank to the other end of device, so be all fixation kit to sleeve and can't disassemble from shank to control to installing.That is to say, the unique place that can replace tool heads has only the open end of this sleeve, but the horn shape heart bore dia in the sleeve is fixing, so can only replace the external diameter driver bit suitable and could use with horn shape heart hole internal diameter, certainly driver bit can for different patterns to adapt to need of work, but blemish in an otherwise perfect thing is that the screwdriver group can't be overlapped the driver bits of joining different sizes, and it is very inconvenient just must to change the screwdriver group that adapts to size when running into the work object of different sizes.

The purpose of this utility model provides the screwdriver of a kind of replaceable multiple tool heads and conversion use length, its convertible different length, can select the tool heads of different sizes for use, applicability is splendid, conversion is used arbitrarily with the behaviour in service difference, avoid changing again and again the puzzlement of different hand-held tools, and reduce the trouble of carrying.

The utility model is achieved in that it comprises: a shank, and this shank forward end is established a groove, and the central authorities of this groove run through this shank center and are provided with dihedral heart hole, are characterized in also having cornue body, extending column and outer tube,

Fill a control seat in this groove; This control seat has a ring body tight fit and is set in this groove, and the open end of this ring body is stretched and is provided with a shell fragment, and the open end medial surface of this shell fragment is established one and played dop; Adjacent this shell fragment peripheral position of the open end of this ring body then extends establishes a ring plate, and the correspondence position of this ring plate respectively is provided with a kerf, and the root of this otch is then expanded and is a chute; One control loop, one end inwall axially is arranged with a guide groove, establishes a guide block at control loop open end inner edge correspondence position in addition, and this ring body docks with this control loop, and this guide block cunning is established this ring plate in this control loop at this otch, and this guide block is promptly gone in this chute; To control the angle of trackslipping of this control loop.

One cornue body, its end are set in the dihedral heart hole of shank, and in the break-through in this control loop and the control seat, its inner rim is provided with a thin baffle ring, and the pipe shaft of this cornue body is provided with two and arranges several locating holes that are longitudinal arrangement; Wherein a registration hole becomes the bullet card to connect with the bullet dop of this shell fragment, adjusts the length that this cornue body extends this shank with this;

One extending column is set in this cornue body; One end of this extending column is provided with a dihedral section, and the external diameter of this dihedral section is equivalent to the internal diameter of this cornue body, is located in this cornue body, and this thin baffle ring retaining supports this dihedral section base, limits the interspersed degree of depth of this extending column; The open end of this dihedral section is provided with a magnetic patch;

One outer tube is that hollow inner edge is horn shape, it is external to slide over this cornue, a pearl body is filled out to convex in the nearly end of this outer tube, this outer tube sliding sleeve is when this cornue body, another registration hole of this pearl body and this cornue body is with blocking connection as required, and promptly this pearl body can be different development length cooperations with this cornue body;

By above-mentioned structure, utilize this cornue body and outer tube to overlap and join different big or small tool heads uses, and screwdriver can change use length.

Further, outer tube outer rim of the present utility model is provided with a soft flexible sheath.

Advantage of the present utility model:

1. screwdriver group cover of the present utility model is joined the tool heads of different sizes and used, and is suitable for multiple use, and is easy to carry.

2. can change the screwdriver group length with should be required.

Description of drawings:

Fig. 1 is a screwdriver group stereo appearance figure commonly used.

Fig. 2-the 1st, three-dimensional exploded view of the present utility model.

Fig. 2-the 2nd, the three-dimensional exploded view of control seat of the present utility model and control loop.

Fig. 3 is a combination appearance figure of the present utility model.

Fig. 4 is an enforcement illustration of the present utility model ().

Fig. 5 is an enforcement illustration of the present utility model (two).

Fig. 6 is an enforcement illustration of the present utility model (three).

Enumerate most preferred embodiment below in conjunction with accompanying drawing, the utility model is described in detail.

Consult shown in Fig. 2-1, the 2-2,3,4, the utility model screwdriver comprises a shank 10, and the front end of this shank 10 is axially established a groove 12, and the central authorities of this groove 12 run through these shank 10 centers and are provided with dihedral heart hole 121; Fill a control seat 13 in this groove 12; This control seat 13 has a ring body 131 and closely cooperates and establish the position in this groove 12, and the heart hole 130 of this ring body 131 and these dihedral heart hole 121 corresponding connections; Open end heart hole 130 peripheries of this ring body 131 extend establishes a shell fragment 132, and the open end medial surface of this shell fragment 132 is the bullet dop 132 that semicircle protrudes; Open end shell fragment 132 peripheral positions of this ring body 131 then extend establishes a ring plate 133, and the correspondence position of this ring plate 133 respectively is provided with a kerf 134, and the root expansion of this otch 134 is a chute 135; One control loop 14, one end inwall axially is arranged with a guide groove 141, establishes a guide block 142 at control loop 14 open end inner edge correspondence positions in addition; This control seat 13 with 134 pairs at the otch of this ring plate 133 should control loop 14 guide block 142, this ring plate 133 is established into this control loop 14, this guide block 142 is promptly gone in this chute 135, this control loop 14 promptly gets on this control seat 13 and trackslips, and utilize the width restriction of this chute 135, these guide block 142 sliding retainings can limit the angle of trackslipping of this control loop 14 when the trough rim of this chute 135.

Place a cornue body 11 in this control loop 14 and this control seat 13, the end of this cornue body 11 is also stretched in the dihedral hole 121 of this shank 10, and this shank 10 can drive this cornue body 11.This cornue body 11 is the hexagonal shape for outer rim in hollow, be provided with a thin baffle ring 111 in it, the pipe shaft of this cornue body 11 is provided with some locating holes 112,113 that two rows are longitudinal arrangement, this cornue body 11 is established in this control seat 13 and the control loop 14, the bullet dop 132 ' Elastic buckle that can make this shell fragment 132 in any locating hole 112 of a row, extends outside this shank 10 and make this cornue body 11 can adjust different length therein.Its localization method is to utilize this cornue body 11 to insert in this control seat 13 and the control loop 14, its the inner stretches through into the dihedral heart hole 121 of this shank 10, when this cornue body 11 of adjustment is suitable length, then supply bullet dop 132 ' bullet card of this shell fragment 132 with the locating hole 112 of right position on it, at this moment, with this control loop 14 rotations one suitable angle, provide the strength that pushes away in these shell fragment 132 usefulness one with its inwall, make this bullet dop 132 ' can tightly fasten this locating hole 112, this cornue body 11 is promptly by strong fix.And if again will adjust the length of this cornue body 11 time, then this control loop 14 is moved in derotation, make 141 pairs of guide grooves in it should shell fragment 132, make the back of shell fragment 132 have a cacheable activity space, the bullet dop 132 of this shell fragment 132 ' promptly can with these locating hole 112 pine oils, can spur this cornue body 11 in front and back, will promote this shell fragment 132 during pulling leans on towards guide groove 141 interior bullets, when the location, again with control loop 14 rotations one suitable angle, push against this shell fragment 132 with its inwall, make on it bullet dop 132 ' blocking is positioned in this locating hole 112 again.And easy for making this control loop 14 adjust contraposition, can establish a mark 136 in the position of this guide groove 141 relatively in its outer peripheral edges, whether corresponding locating hole 112 judges whether shell fragment is the blocking state with locating hole 112 with this mark 136.

Wear an extending column 20 in the cornue body 11, these extending column 20 shafts are cylindrical, the one end is provided with a dihedral section 21, this dihedral section 21 also is the hexagonal shape, and external diameter is equivalent to the internal diameter of this cornue body 11, this extending column 20 is arranged in this cornue body 11, be able to the junction that these thin baffle ring 111 retainings support this dihedral section 21 and circular shaft, limit the interspersed degree of depth of this extending column 20, and make in the end of this extending column 20 and contracting in the open end of this cornue body 11, the open end of this dihedral section 21 is provided with a magnetic patch 22, the open end of this cornue body 11 tool heads 40 of can planting, and utilize this magnetic patch 22 to hold this tool heads 40 to make it can not fall to take off easily;

These cornue body 11 outer sliding outer tubes 30, these outer tube 30 outer rims are tubular, interior is hexagonal angle centre of form hole 31, makes to cooperate the suitable shape sliding sleeve of these cornue body 11 profiles; A pearl body 32 is filled out to convex in this outer tube 30 pipes one end, makes these outer tube 30 sliding sleeves when this cornue body 11, is able to adjust the development length that is different with this pearl body 32 with locating hole 113 blockings.These outer tube 30 outer rims are provided with a soft flexible sheath 33, are convenient to finger contact sheath 33 in order to this outer tube 30 of control behaviour.

According to above-mentioned structure, see also shown in Fig. 4,5, the open end of this cornue body 11 is filled out and is joined this tool heads 40, and this cornue body 11 can be different length cooperations with shank 10, changes the active length of screwdriver group.

See also shown in Figure 6ly, outer tube 30 of the present utility model also must produce different length with this cornue body 11 and cooperate, and can change the development length of screwdriver again, and the internal diameter of this outer tube 30 is big than cornue body 11, joins 50 uses of bigger tool heads so can overlap.

By above-mentioned structure, cornue body 11 of the present utility model is different with outer tube sleeve pipe 30 internal diameters, insert two kinds of tool heads 40,50 uses that external diameter is different so can overlap, but and the flexible transformation active length with in requisition for, fully show flexible applicability, can use with the different conversion arbitrarily of behaviour in service, save the puzzlement of the different hand-held tools of frequent replacing, and reduce the trouble that many screwdriver groups are carried jointly.

Claims

1. the screwdriver of length is used in replaceable multiple tool heads and conversion, comprises a shank (10), and the front end of this shank (10) is established a groove (12), and the central authorities of this groove (12) run through this shank center and establish a dihedral heart hole (121); It is characterized in that cornue body (11) in addition, extending column (20) and outer tube (30);

Fill a control seat (13) in this groove (12); This control seat (13) has a ring body (131) tight fit and is set in this groove (12), and the open end of this ring body (131) is stretched and is provided with a shell fragment (132), and the open end medial surface of this shell fragment 132 is established one and played dop (132 '); Adjacent this shell fragment of the open end of this ring body (131) (132) peripheral position then extends establishes a ring plate (133), and the correspondence position of this ring plate (133) respectively is provided with a kerf (134), and the root of this otch (134) is then expanded and is a chute (135); One control loop (14), one end inwall axially is arranged with a guide groove (141), establish a guide block (142) at control loop (14) open end inner edge correspondence position in addition, this ring body (131) docks with this control loop (14), this guide block (142) is sliding in this otch (134), this ring plate (133) is established in this control loop (14), and this guide block (142) is promptly gone in this chute (135);

One cornue body (11), its end is set in the dihedral heart hole (121) of shank (10), and in the break-through in this control loop (14) and the control seat (13), its inner rim is provided with a thin baffle ring (111), and the pipe shaft of this cornue body (11) is provided with several locating holes (112), (113) that two rows are longitudinal arrangement; Wherein a registration hole (112) becomes the bullet card to connect with the bullet dop (132 ') of this shell fragment (132);

One extending column (20) is set in this cornue body (11); One end of this extending column (20) is provided with a dihedral section (21), the external diameter of this dihedral section (21) is equivalent to the internal diameter of this cornue body (11), be located in this cornue body (11), this thin baffle ring (111) retaining supports this dihedral section (21) base, and the open end of this dihedral section (21) is provided with a magnetic patch (22);

One outer tube (30) is horn shape for hollow inner edge, slides over outside this cornue body (11), and a pearl body (32) is filled out to convex in the nearly end of this outer tube (30), and another registration hole (113) of this pearl body (32) and this cornue body (11) is with blocking connection as required.

2. the screwdriver of length is used in a kind of replaceable multiple tool heads according to claim 1 and conversion, it is characterized in that this outer tube (30) outer rim is provided with a soft flexible sheath (33).