CN201329568Y - General screwdriver bit connecting rod - Google Patents

General screwdriver bit connecting rod Download PDF

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Publication number
CN201329568Y
CN201329568Y CNU2008201765405U CN200820176540U CN201329568Y CN 201329568 Y CN201329568 Y CN 201329568Y CN U2008201765405 U CNU2008201765405 U CN U2008201765405U CN 200820176540 U CN200820176540 U CN 200820176540U CN 201329568 Y CN201329568 Y CN 201329568Y
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CN
China
Prior art keywords
screwdriver head
sliding sleeve
control sliding
inner core
insertion slot
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CNU2008201765405U
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Chinese (zh)
Inventor
黃瑞敏
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Individual
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Individual
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Priority to CNU2008201765405U priority Critical patent/CN201329568Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a general screwdriver bit connecting rod, and main members include a main rod body, a control sliding sleeve, a movable inner cylinder, a first elastic reset part, a second elastic reset part, a movable magnetic suction rod part, a first group of positioning balls, a second group of positioning balls and an inner cylinder stop member. The product can combine a plurality of screwdriver bits with different specifications, thereby being applicable to a plurality of occasions with the need of a screwdriver.

Description

Universal screwdriver head extension bar
Technical field
The utility model relates to a kind of screwdriver head extension bar, is meant the universal screwdriver head extension bar that a kind of screwdriver head insert group that can be conducted to few four kinds of specification kenels is used especially.
Background technology
Though the set of joints position of general electronic tool can be changed for the screwdriver head assembling of different size for adjustable, yet, because the set of joints external diameter of this electronic tool is roomy, therefore when want screw loose, that lock when facing be a working environment in getting deeply stuck in the finedraw space, described set of joints can't stretch into wherein and have the problem that can't implement.
Based on the problems referred to above, then there is industry to develop a kind of screwdriver head extension bar product to address this problem, the common end of described screwdriver head extension bar is made as connecting rod portion to be connected to the set of joints of electronic tool, the other end then extends a preseting length and is provided with a screwdriver head insertion slot for the screwdriver head insert group, though this kind screwdriver head extension bar can reach extension function, but in using, reality finds, because extensive on the market at present common screwdriver head, the screwdriver head socket assembling end kenel of listing that its different manufacturers is produced not is identical, with the spacing distance of screwdriver head socket assembling end end face to the pearl body location edge of leaning to one side, the difference difference that has four kinds of sizes at present on the market at least, but, on the present common screwdriver head extension bar structural design, but majority only takes at one or both kenels wherein, so also just cause to use and go up the polynary applicability of shortcoming, cause the obtained screwdriver head of user, often can't with this screwdriver head extension bar embarrassed look of being used of insert group mutually, more cause the problem that the practicality of this screwdriver head extension bar is greatly affected and lack fraud.
In view of this, utility model inventor relies on manufacturing development and the design experiences be engaged in Related product for many years, at the problems referred to above, in detail after design and the scrupulous assessment, eventually the present utility model of a true tool practicality.
The utility model content
The technical problems to be solved in the utility model has provided a kind of universal screwdriver head extension bar, can solve the problem that traditional screwdriver head extension bar is only applicable to one or both screwdriver heads.
The above-mentioned technical problem of the utility model is achieved in that a kind of universal screwdriver head extension bar, comprise: a main rod body, it is a hollow rod shape, it has an extension bar end and a screwdriver head socket assembling end, described screwdriver head socket assembling end is formed with the screwdriver head insertion slot of an indent, and the cell wall locations at predetermined of described screwdriver head insertion slot and the one first pearl body that is arranged with intercrossing type are put the hole, one second pearl body is put the hole; One control sliding sleeve, cover is organized in the screwdriver head socket assembling end periphery of described main rod body and is slidably state, and described control sliding sleeve inwall also has a recessed circular groove and the inlay card circular groove of allowing that is provided with at interval; One first elastic reset spare is mounted between described control sliding sleeve and the main rod body, so that described control sliding sleeve is supported towards described screwdriver head socket assembling end direction elasticity; One movable inner core is mounted on that be in the screwdriver head insertion slot of described main rod body can spacing sliding mode, and described movable inner core outer end tool one screwdriver head is against an ora terminalis and an inner groovy, and described inner groovy central authorities also are formed with a perforating; One second elastic reset spare is to be mounted between described movable inner core the inner and the described screwdriver head insertion slot inner end wall, so that the extreme direction elasticity outside described screwdriver head insertion slot of jacket casing in the described activity is supported; One movable magnetic rod member, be mounted on that be in the inner groovy of described movable inner core can spacing sliding extension state, described movable magnetic rod member tool one a magnetic head and a motion guide rod portion, described magnetic head is when predetermined recessed shape attitude, and the screwdriver head of described movable inner core is against the one interval drop of tool between the ora terminalis, described motion guide rod portion then is loose fit state the stretched through perforating of described inner groovy and the inner tool one hole enlargement limiting section of described motion guide rod portion; One first group of positioning bead, being mounted on the set first pearl body of described screwdriver head insertion slot cell wall puts in the hole, described first group of positioning bead can be compressed by described control sliding sleeve inwall and be the state that screwdriver head is located in interior convex engaging, and, constitute then that described first group of positioning bead is outer gibbosity and the state that discharges screwdriver head when set recessed first group of positioning bead of circular groove and this that allow of described control sliding sleeve inwall mutually during contraposition; One second group of positioning bead is mounted on the set second pearl body of described screwdriver head insertion slot cell wall and puts in the hole, and described second group of positioning bead can be supported by described movable inner core and be the state that outer gibbosity is sticked in the set inlay card circular groove of described control sliding sleeve inwall; The spacing member of one inner core makes the slip state of described movable inner core extreme direction outside described screwdriver head insertion slot obtain spacing by it.
Adopt said structure to make the utility model product, can reach more polynary, the more practical handy progressive of applicability for the screwdriver head insert group of at least four kinds of different socket assembling end kenels cooperation on the market at present in the use.
Description of drawings
Fig. 1 is the combination stereogram of the utility model preferred embodiment.
Fig. 2 is the exploded perspective view of the utility model preferred embodiment.
Fig. 3 is the assembled sectional view of the utility model preferred embodiment.
Fig. 4 is the cutaway view of screwdriver head insert group actuator state one of the present utility model.
Fig. 5 is the cutaway view of screwdriver head insert group actuator state two of the present utility model.
Fig. 6 is a release screwdriver head actuator state cutaway view of the present utility model.
But the different screwdriver head kenel differences contrast schematic diagrames of Fig. 7 universal screwdriver head extension bar insert group that is the utility model.
The assembled state difference contrast schematic diagram of the different kenel screwdriver heads of the universal screwdriver head extension bar of Fig. 8 the utility model insert group.
The specific embodiment
Below in conjunction with accompanying drawing detailed explanation is done in concrete enforcement of the present utility model.
See also Fig. 1 to shown in Figure 3, be the preferred embodiment of the universal screwdriver head extension bar of the utility model, all embodiment only for the usefulness of explanation, are not subjected to the restriction of this structure in patent application.Described universal screwdriver head extension bar A comprises following formation:
One main rod body 10, it is a hollow rod shape, it has an extension bar end 11 and a screwdriver head socket assembling end 12, described screwdriver head socket assembling end 12 is formed with the screwdriver head insertion slot 13 (can be a hexagonal section kenel) of an indent, and the cell wall locations at predetermined of described screwdriver head insertion slot 13 and the one first pearl body that is arranged with intercrossing type are put hole 14, one second pearl body is put hole 15;
One control sliding sleeve 20, cover is organized in screwdriver head socket assembling end 12 peripheries of described main rod body 10 and is slidably state, and described control sliding sleeve 20 inwalls also have a recessed circular groove 21 and the inlay card circular groove 22 of allowing that is provided with at interval;
One first elastic reset spare 30 is mounted between described control sliding sleeve 20 and the main rod body 10, so that described control sliding sleeve 20 is supported towards described screwdriver head socket assembling end 12 direction elasticity; The first elastic reset spare 30 of present embodiment is constituted by a helical spring, and described control sliding sleeve 20 and main rod body 10 are relative to be provided with ring-type shoulder 17,23, so that the described first elastic reset spare 30 is mounted between the described two ring-type shoulders 17,23;
One movable inner core 40, can be a cylinder kenel, be mounted on that be in the screwdriver head insertion slot 13 of described main rod body 10 can spacing sliding mode, described movable inner core 40 outer end tools one screwdriver head is against an ora terminalis 41 and an inner groovy 42, and described inner groovy 42 central authorities also are formed with perforatings 43;
One second elastic reset spare 50 can be a helical spring, is mounted between described movable inner core 40 the inners and described screwdriver head insertion slot 13 inner end wall, should activity inner core 40 covers extreme direction elasticity outside this screwdriver head insertion slot 13 supporting;
One movable magnetic rod member 60, be mounted on that be in the inner groovy 42 of described movable inner core 40 can spacing sliding extension state, described movable magnetic rod member 60 tools, one a magnetic head 61 and a motion guide rod portion 62, described magnetic head 61 is when predetermined recessed shape attitude, and the screwdriver head of described movable inner core 40 is against the one interval drop of tool between the ora terminalis 41,62 in described motion guide rod portion is the stretched through perforating 43 of this inner groovy 42 of loose fit state, and described motion guide rod portion 62 inner tool one hole enlargement limiting sections 63, described hole enlargement limiting section 63 can constitute by making up fixing a T shape post or bolt, in addition, 61 on described magnetic head can be arranged with a tank 64 multiple embedding group one magnet 65 by its end face and constitutes;
One first group of positioning bead 71, being mounted on the set first pearl body of described screwdriver head insertion slot 13 cell walls puts in the hole 14, described first group of positioning bead 71 can be compressed by described control sliding sleeve 20 inwalls and be the state that screwdriver head 81 is located in interior convex engaging, and, constitute then that described first group of positioning bead 71 is outer gibbosity and the state that discharges this screwdriver head 81 when set recessed circular groove 21 and the described first group of positioning bead 71 of allowing of described control sliding sleeve 20 inwalls mutually during contraposition;
One second group of positioning bead 72, be mounted on the set second pearl body of described screwdriver head insertion slot 13 cell walls and put in the hole 15, described second group of positioning bead 72 can be supported by described movable inner core 40 and be the state that outer gibbosity is sticked in the set inlay card circular groove 22 of described control sliding sleeve 20 inwalls;
The spacing member 73 of one inner core makes the slip state of described movable inner core 40 extreme direction outside described screwdriver head insertion slot 13 obtain spacing; The spacing member 73 of the inner core of present embodiment is constituted by a positioning bead body 731, so that described screwdriver head insertion slot 13 cell walls are provided with pearl body containing hole 732 is ccontaining spacing for described positioning bead body 731, described positioning bead body 731 can be compressed by described control sliding sleeve 20 inwalls and the state of convex block in the screwdriver head of described movable inner core 40 against ora terminalis 41 in being.
As shown in Figure 3, described control sliding sleeve 20 set inlay card circular groove 22 1 sides also can be provided with the limit guide groove 221 that contracts in the groove footpath, reach block with the described second group of positioning bead 72 of block and limit this control sliding sleeve 20 towards outer end slippage range and prevent its purpose of deviating from (state as shown in Figure 5).
Adopt above-mentioned structure, form design, now be described as follows with regard to use start situation of the present utility model:
At first as shown in Figure 3, do not insert the state of described screwdriver head 81 as yet for described universal screwdriver head extension bar A, this moment described movable inner core 40 by the described second elastic reset spare 50 outwardly extreme direction support, and then described second group of positioning bead 72 supported be outer gibbosity and be sticked in the set inlay card circular groove 22 of described control sliding sleeve 20 inwalls, constitute the state that described control sliding sleeve 20 is positioned, the described first elastic reset spare 30 slightly was subjected to the relative extruding of described two ring-type shoulders 17,23 and accumulated elastic force is arranged this moment; On the other hand, 71 this moments of described first group of positioning bead just in time with set recessed circular groove 21 contraposition mutually that allows of described control sliding sleeve 20 inwalls, but and present the release conditions that evagination is shunk back.
Then please contrast Fig. 4, Fig. 5, when the user inserts described screwdriver head 81 in the screwdriver head socket assembling end 12 set screwdriver head insertion slots 13 of described main rod body 10 desired depth, to push described screwdriver head and make described movable inner core 40 inside slippages against ora terminalis 41, push the described second elastic reset spare 50 simultaneously and accumulate elastic force, push the active force regression and the state of the described control sliding sleeve 20 set inlay card circular grooves 22 of disengaging of can inwardly slightly shrinking back to constitute described second group of positioning bead 72 the inner, this moment described control sliding sleeve 20 will be subjected to the described first elastic reset spare 30 the elastic force release action and towards one section predeterminable range of front end slippage (shown in the L1 of Fig. 5), and along with the reach of described control sliding sleeve 20 and the insert group state of described screwdriver head 81 put in place, but be sticked in the lean to one side positioning states of set pearl body location edge 810 of described screwdriver head 81 with constituting described first group of positioning bead, 71 proper convexes, and the convex state of described first group of positioning bead 71, can be because of the reach of described control sliding sleeve 20, and can be subjected to described control sliding sleeve 20 compressing of inwall and obtain the effect of rigidity strong fix screwdriver head 81.
As shown in Figure 6, when discharging described screwdriver head 81, the user only must be with described control sliding sleeve 20 toward rear pushing (shown in arrow L2), can get back to state shown in Figure 4, but just described first group of positioning bead 71 evagination are shunk back and are recessedly allowed circular groove 21 and discharge the state of screwdriver head 81 to control sliding sleeve 20 is set, this moment is by the elastic force release action of the described second elastic reset spare 50, described movable inner core 40 outwards must be pushed, make screwdriver head 81 be overhanging state and be convenient to the user and take out, and described screwdriver head 81 socket assembling ends can be held by the magnetic head 61 of described movable magnetic rod member 60 and unlikely outwards going out dropped.
Universal screwdriver head extension bar A disclosed in the utility model, can be on it uses for the screwdriver head insert group of at least four kinds of different socket assembling end kenels cooperation on the market at present, this as shown in Figure 7, be the different kenel contrast figure of described four kinds of screwdriver heads 81,82,83,84, its discrepancy mainly is spacing (W1, W2, W3, the W4) difference of its socket assembling end end face to its set pearl body location edge 810,820,830,840 of leaning to one side.
As mentioned above, described four kinds of screwdriver heads 81,82,83,84 insert groups in the assembled state of universal screwdriver head extension bar A disclosed in the utility model then as shown in Figure 8, by described figure as can be known, three kinds of single head formula screwdriver heads 81 wherein, 82,83 its socket assembling end end faces are to the pearl body location edge 810 of leaning to one side, 820,830 spacing W1, W2, the difference difference of W3, can obtain to adjust automatically effect by the slidably advance and retreat characteristic of described movable inner core 40, and wherein a kind of bullhead screwdriver head 84, its cone tip shape socket assembling end to the spacing W4 of its set pearl body location edge 840 of leaning to one side much larger than other three, can can be recessed in the action characteristic of the screwdriver head of this activity inner core 40 by the magnetic head 61 of described movable magnetic rod member 60 for this kenel against ora terminalis 41 inside, so that the cone tip shape socket assembling end of described screwdriver head 84 can further stretch into described movable inner core 40 inside, make its pearl body location edge 840 can accurately obtain to engage locating effect equally.
The universal screwdriver head extension bar of the utility model mainly passes through described movable inner core outer end tool one screwdriver head against an ora terminalis and an inner groovy, movable magnetic rod member is and can be mounted in the described movable inner core inner groovy by spacing sliding extension shape simultaneously, described movable magnetic rod member tool one magnetic head and motion guide rod portion, described magnetic head when interior contracting and the screwdriver head of described movable inner core against the drop at interval of tool between the ora terminalis, adopt this innovation unique design, make no matter the screwdriver head of insert group is single head or double end pattern, the pearl body location edge slightly different person in position that perhaps leans to one side all can obtain locating effect, so making this universal screwdriver head extension bar use can cooperate for the screwdriver head insert group of present four kinds of different socket assembling end kenels on the market at least, and it is more polynary to reach applicability, more practical handy progressive.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.

Claims (7)

1, a kind of universal screwdriver head extension bar is characterized in that: described universal screwdriver head extension bar comprises:
One main rod body, it is a hollow rod shape, it has an extension bar end and a screwdriver head socket assembling end, described screwdriver head socket assembling end is formed with the screwdriver head insertion slot of an indent, and the cell wall locations at predetermined of described screwdriver head insertion slot and the one first pearl body that is arranged with intercrossing type are put the hole, one second pearl body is put the hole;
One control sliding sleeve, cover is organized in the screwdriver head socket assembling end periphery of described main rod body and is slidably state, and described control sliding sleeve inwall also has a recessed circular groove and the inlay card circular groove of allowing that is provided with at interval;
One first elastic reset spare is mounted between described control sliding sleeve and the main rod body, so that described control sliding sleeve is supported towards described screwdriver head socket assembling end direction elasticity;
One movable inner core is mounted on that be in the screwdriver head insertion slot of described main rod body can spacing sliding mode, and described movable inner core outer end tool one screwdriver head is against an ora terminalis and an inner groovy, and described inner groovy central authorities also are formed with a perforating;
One second elastic reset spare is to be mounted between described movable inner core the inner and the described screwdriver head insertion slot inner end wall, so that the extreme direction elasticity outside described screwdriver head insertion slot of jacket casing in the described activity is supported;
One movable magnetic rod member, be mounted on that be in the inner groovy of described movable inner core can spacing sliding extension state, described movable magnetic rod member tool one a magnetic head and a motion guide rod portion, described magnetic head is when predetermined recessed shape attitude, and the screwdriver head of described movable inner core is against the one interval drop of tool between the ora terminalis, described motion guide rod portion then is loose fit state the stretched through perforating of described inner groovy and the inner tool one hole enlargement limiting section of described motion guide rod portion;
One first group of positioning bead, being mounted on the set first pearl body of described screwdriver head insertion slot cell wall puts in the hole, described first group of positioning bead can be compressed by described control sliding sleeve inwall and be the state that screwdriver head is located in interior convex engaging, and, constitute then that described first group of positioning bead is outer gibbosity and the state that discharges screwdriver head when set recessed first group of positioning bead of circular groove and this that allow of described control sliding sleeve inwall mutually during contraposition;
One second group of positioning bead is mounted on the set second pearl body of described screwdriver head insertion slot cell wall and puts in the hole, and described second group of positioning bead can be supported by described movable inner core and be the state that outer gibbosity is sticked in the set inlay card circular groove of described control sliding sleeve inwall;
The spacing member of one inner core makes the slip state of described movable inner core extreme direction outside described screwdriver head insertion slot obtain spacing by it.
2, according to the described universal screwdriver head extension bar of claim 1, it is characterized in that: the wherein said first elastic reset spare can be a helical spring and constitutes, described control sliding sleeve is relative with main rod body to be provided with the ring-type shoulder, so that the described first elastic reset spare is mounted between described control sliding sleeve and the set ring-type shoulder of main rod body.
3, according to the described universal screwdriver head extension bar of claim 1, it is characterized in that: the inner set hole enlargement limiting section of the motion guide rod portion of wherein said movable magnetic rod member can constitute by making up fixing a T shape post or bolt.
4, according to the described universal screwdriver head extension bar of claim 1, it is characterized in that: the magnetic head of wherein said movable magnetic rod member is arranged with multiple embedding group one magnet of a tank by its end face and is constituted.
5, according to the described universal screwdriver head extension bar of claim 1, it is characterized in that: the set screwdriver head insertion slot of the screwdriver head socket assembling end of wherein said main rod body can be a hexagonal section kenel, and described movable inner core then can be a cylinder kenel.
6, according to the described universal screwdriver head extension bar of claim 1, it is characterized in that: the spacing member of wherein said inner core can be a positioning bead body and constitutes, so that described screwdriver head insertion slot cell wall is provided with pearl body containing hole is ccontaining spacing for this positioning bead body, described positioning bead body can be compressed by described control sliding sleeve inwall and the state of convex block in the screwdriver head of described movable inner core against ora terminalis in being.
7, according to the described universal screwdriver head extension bar of claim 1, it is characterized in that: set inlay card circular groove one side of wherein said control sliding sleeve is provided with the limit guide groove that contracts in the groove footpath, reaches the purpose that block limits described control sliding sleeve with the described second group of positioning bead of block.
CNU2008201765405U 2008-11-25 2008-11-25 General screwdriver bit connecting rod Expired - Fee Related CN201329568Y (en)

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Application Number Priority Date Filing Date Title
CNU2008201765405U CN201329568Y (en) 2008-11-25 2008-11-25 General screwdriver bit connecting rod

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Application Number Priority Date Filing Date Title
CNU2008201765405U CN201329568Y (en) 2008-11-25 2008-11-25 General screwdriver bit connecting rod

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CN201329568Y true CN201329568Y (en) 2009-10-21

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744701A (en) * 2012-02-10 2012-10-24 湖南吉利汽车部件有限公司 Tool bit of combined electric screw driver
CN102909709A (en) * 2011-08-06 2013-02-06 苏州宝时得电动工具有限公司 Power tool
CN105437134A (en) * 2014-09-16 2016-03-30 叶淑惠 Rapid-releasing sleeving tool
US9561581B2 (en) 2015-01-22 2017-02-07 Shu-Hui Yeh Quick-removal socket tool
CN108262709A (en) * 2016-12-30 2018-07-10 徐日雄 Sleeve capable of accommodating screwdriver head

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102909709A (en) * 2011-08-06 2013-02-06 苏州宝时得电动工具有限公司 Power tool
CN102744701A (en) * 2012-02-10 2012-10-24 湖南吉利汽车部件有限公司 Tool bit of combined electric screw driver
CN102744701B (en) * 2012-02-10 2014-08-13 湖南吉利汽车部件有限公司 Tool bit of combined electric screw driver
CN105437134A (en) * 2014-09-16 2016-03-30 叶淑惠 Rapid-releasing sleeving tool
CN105437134B (en) * 2014-09-16 2017-11-07 叶淑惠 Press-off soon bonding tool
US9561581B2 (en) 2015-01-22 2017-02-07 Shu-Hui Yeh Quick-removal socket tool
CN108262709A (en) * 2016-12-30 2018-07-10 徐日雄 Sleeve capable of accommodating screwdriver head

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091021

Termination date: 20101125