CN203936887U - The instrument of replaceable driving head - Google Patents
The instrument of replaceable driving head Download PDFInfo
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- CN203936887U CN203936887U CN201420342538.6U CN201420342538U CN203936887U CN 203936887 U CN203936887 U CN 203936887U CN 201420342538 U CN201420342538 U CN 201420342538U CN 203936887 U CN203936887 U CN 203936887U
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Abstract
本实用新型关于一种可更换驱动头的工具。该可更换驱动头的工具包括一外套件及一内套件。以该外套件定义有一中心轴线，该外套件具有一套端内缘及一非圆形内周壁，该套端内缘设有多数角部及位于该多数角部之间的多数挡缘，该角部至该中心轴线的距离大于该挡缘至该中心轴线的距离。该内套件具有一非圆形外周壁，该内套件可拆卸地被该外套件套设且具有位于轴向上的一第一接端，该第一接端的内壁设有多数轴向延伸的卡凹，该第一接端并具有一朝向该多数挡缘的第一端面，该非圆形外周壁与该非圆形内周壁不相对周向滑动地相抵接，该卡凹至该中心轴线的距离小于该挡缘至该中心轴线的距离，自轴向观之，各该卡凹与一该挡缘重叠。当一驱动头插入该内套件且该外套件与该内套件靠近，该多数挡缘可限挡该驱动头。
The utility model relates to a tool with a replaceable driving head. The tool for replacing the driving head includes an outer set and an inner set. A central axis is defined by the outer sleeve, the outer sleeve has an inner edge of a sleeve end and a non-circular inner peripheral wall, the inner edge of the sleeve end is provided with a plurality of corners and a plurality of retaining edges between the plurality of corners, the The distance from the corner portion to the central axis is greater than the distance from the retaining edge to the central axis. The inner sleeve has a non-circular outer peripheral wall, the inner sleeve is detachably sheathed by the outer sleeve and has a first connecting end located in the axial direction, the inner wall of the first connecting end is provided with a plurality of axially extending clips Concave, the first connecting end has a first end surface facing the plurality of retaining edges, the non-circular outer peripheral wall abuts against the non-circular inner peripheral wall without sliding relative to the circumferential direction, and the card is recessed to the central axis The distance is smaller than the distance from the retaining edge to the central axis. Viewed from the axial direction, each of the engaging recesses overlaps with one of the retaining edges. When a driving head is inserted into the inner sleeve and the outer sleeve is close to the inner sleeve, the plurality of retaining edges can limit the driving head.
Description
Technical field
The utility model relates to a kind of instrument of replaceable driving head.
Background technology
In known two-period form joint, the polygonal ballhead of support bar is to be placed in the storage tank of operation head, and the shape of this storage tank is to should polygonal ballhead and be polygonal limit shape, and can set firmly mutually with operation head while support bar being pressed into by a connecting structure, and when support bar is pulled out relatively operation head carry out pivot pendulum.The TaiWan, China patent No. 566284 and M357344 those disclosed herein belong to this type of.
In the structure of the TaiWan, China patent No. 566284, because this storage tank inwall is to be polygonal limit shape, be with its with polygonal ballhead between be to be contacting of face and face, and when utilizing a Vidacare corp to drive the relative operation of this support bar High Rotation Speed, the easy friction because of polygonal ballhead and storage tank is excessive causes locked card to work as, and can produce infringement to this Vidacare corp and this two-period form tool-joint; Moreover, even if occur without locked situation, when using, still can in friction process, waste additional energy, cause the low and unfavorable user's operation of operating efficiency.
In the structure of TaiWan, China patent No. M357344, it is a plurality of to flange that should polygonal ballhead to be that sidewall in this storage tank is provided with, those flanges are uniformly-spaced and to be longitudinally arranged at each other on the sidewall of storage tank, the quantity of those flanges is the angle numbers corresponding to this polygonal ballhead, and each flange all has one for the convex arc contact-making surface contacting with polygonal ballhead, make this support bar and operation head be rotation continuous action relation, use and improve as the scarce fraud of the structure of TW566284.
Yet, no matter as the TaiWan, China patent No. 566284 or structure that M357344 took off, all be not provided with the effectively block edge in each bight of this polygonal ballhead of backstop, therefore when High Rotation Speed operation, this driving head is easily deviate from, and has the problem that operating efficiency is not good, operation is interrupted, even caused danger.
Therefore, the instrument that is necessary to provide a kind of novelty and has the replaceable driving head of progressive, to solve the above problems.
Utility model content
The purpose of this utility model, is to provide a kind of instrument of replaceable driving head, can prevent that driving head from arbitrarily deviating from and being convenient for changing driving head; Driving head can carry out pivot pendulum and have preferably operating efficiency; Have member less, simple in structure, assemble the advantages such as easy.
For achieving the above object, the utility model is by the following technical solutions:
An instrument for replaceable driving head, it comprises:
One package assembly, with this package assembly definition, there is a central axis, this package assembly has a set of end inner edge and a non-circular internal perisporium, this cover end inner edge is provided with most bights and the most block edges between this majority bight, and this bight to the distance of this central axis is greater than this block edge to the distance of this central axis;
One internal member, there is a non-circular perimeter wall, removably sheathed by this package assembly, there is relative one first on being positioned at axially and connect end, it is recessed that this first inwall that connects end is provided with most axially extended cards, this first connects end and has first end face towards this majority block edge, this non-circular perimeter wall is not relative with this non-circular internal perisporium circumferentially to connect slidably, the recessed distance to this central axis of this card is less than this block edge to the distance of this central axis, from axial sight it, respectively recessed and this block edge of this card is overlapping; Wherein, when the spacing of this first end face and this cover end inner edge is not less than a preset distance, can inserts and rotate for a driving head;
Wherein, this driving head comprises a first end, this first end has most axially extended bights of supporting on side face, and one second end face, should the ultimate range to this central axis be less than this block edge to the distance of this central axis to bight, along this, should the distance to this second end face be to be respectively axially not more than this preset distance to maximum outside diameter place, bight, this first end removable group is inserted in this and first connects in end, recessed when respectively should can insert corresponding card when bight rotation is recessed to corresponding card, wherein by this first end face and this majority block edge, mutually near can the first end of this driving head being limited to this by this majority block edge, first connect in end.
In a preferred embodiment, separately comprise Yi Diding mechanism, Gai Diding mechanism comprises that one can shrink back and is convexly set in the body that supports of this non-circular internal perisporium or this non-circular perimeter wall, should support body and be resisted against between this non-circular internal perisporium and this non-circular perimeter wall.
In a preferred embodiment, described Di Ding mechanism separately comprise one be formed at this non-circular internal perisporium and this non-circular perimeter wall wherein one extend axially groove, this non-circular internal perisporium and this non-circular perimeter wall another one are provided with this and support body, should be located at movably this to body and extend axially groove.
In a preferred embodiment, described in extend axially groove and separately comprise that at least one being expands and darker location slot part.
In a preferred embodiment, described at least one location slot part comprises that one approaches the first location slot part and a second location slot part away from this cover end inner edge of this cover end inner edge, when this supports body and supports due to this first location slot part, the spacing of this first end face and this cover end inner edge is less than this preset distance, when this supports body and supports due to this second location slot part, this first end face holds the spacing of inner edge to be not less than this preset distance with this cover.
An instrument for replaceable driving head, it comprises:
One package assembly, with this package assembly definition, there is a central axis, this package assembly has a set of end inner edge and a non-circular internal perisporium, this cover end inner edge is provided with most bights and the most block edges between this majority bight, this bight to the distance of this central axis is greater than this block edge to the distance of this central axis, wherein a first end of a driving head is placed in this package assembly, this first end has most axially extended bights of supporting on side face, should the ultimate range to this central axis be less than this block edge to the distance of this central axis to bight, from axial sight it, respectively bight should be supported relative with this block edge,
One internal member, there is a non-circular perimeter wall, removably sheathed by this package assembly, there is one first on being positioned at axially and connect end, it is recessed that this first inwall that connects end is provided with most axially extended cards, the recessed distance to this central axis of this card is less than this block edge to the distance of this central axis, from axial sight it, respectively this card is recessed overlapping with this block edge, this first connects end and supports bight and be sheathed on the first end of this driving head with respect to this majority so that this majority card is recessed, respectively should support that bight be placed in that corresponding card is recessed and this non-circular perimeter wall is not relative with this non-circular internal perisporium circumferentially connects slidably,
Wherein, by this, first connect end and this majority block edge and mutually near can the first end of this driving head being limited to this by this majority block edge, first connect in end.
In a preferred embodiment, separately comprise Yi Diding mechanism, Gai Diding mechanism comprises that one can shrink back and is convexly set in the body that supports of this non-circular internal perisporium or this non-circular perimeter wall, should support body and be resisted against between this non-circular internal perisporium and this non-circular perimeter wall.
In a preferred embodiment, it is characterized in that, described first end is provided with a polygonal ballhead and a radial flange, wherein:
When this radial flange is connected to this cover end inner edge, this driving head sets firmly mutually with this internal member and this package assembly;
When this radial flange is not connected to this cover end inner edge, it is centring point and this internal member and this package assembly carry out pivot pendulum relatively that this driving head is able to this polygonal ballhead.
In a preferred embodiment, described the first inwall that connects end is provided with the terrace of a first end towards this driving head, and when this radial flange is connected to this cover end inner edge, the end face of this first end and this terrace connect.
In a preferred embodiment, it is characterized in that, described first end is provided with a polygonal straight-bar.
The utility model beneficial effect is: socket-connecting with non-circular perisporium by this package assembly and this internal member simply, can make each block edge and the bight of respectively supporting of a driving head place restrictions on mutually, and then reaching the effect that can prevent that driving head from deviating from and being convenient for changing in this internal member, its member is less, simple in structure, assembling is easy.In addition, socket-connecting with non-circular perisporium of this package assembly and this internal member, has preferably structural strength, under high speed and/or large torsion operation, is difficult for breakdown.Separately, the driving head of the instrument of the replaceable driving head of the utility model relatively this internal member and this package assembly carries out pivot pendulum, so can facilitate this driving head to be used in the place that is difficult for entering, thereby the work of the handling locking parts (as screw, bolt etc.) that carry out, so important that to be, the bight of respectively supporting of this driving head is subject to the restriction of corresponding block edge and can arbitrarily deviate from, and does not have the problem that operating efficiency is not good, operation is interrupted, even caused danger.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model one preferred embodiment.
Fig. 2 is the exploded view of the utility model one better enforcement.
Fig. 3 is the profile of the utility model one preferred embodiment.
Fig. 3 A is that Fig. 3 is along the profile of 3A-3A.
Fig. 4 is another profile of the utility model one preferred embodiment.
Fig. 4 A is that Fig. 4 is along the profile of 4A-4A.
Fig. 5 and Fig. 6 are the profile after the utility model one preferred embodiment combination.
Fig. 7 is that Fig. 5 is along the profile of 7-7.
Fig. 8 is the profile of another preferred embodiment of the utility model.
Fig. 9-11 are the stereogram of different driving head.
Drawing reference numeral: 10: package assembly; 11: central axis; 12: cover end inner edge; 13: non-circular internal perisporium; 14: bight; 15: block edge; 20: internal member; 21: non-circular perimeter wall; Connect end at 22: the first; 23: block recessed; 24: the first end faces; 25: terrace; 30: driving head; 30a: driving head; 30b: driving head; 30c: driving head; 31: first end; 311: support bight; 31a: hexagon prism; 31b: sleeve; 31c: first end; 312: the second end faces; 313: polygonal ballhead; 314: radial flange; 315: the second ends; 316: four angle joints; 32c: polygonal straight-bar; 33c: support bight; 40: Di Ding mechanism; 41: support body; 42: extend axially groove; 43: the first location slot parts; 44: the second location slot parts.
The specific embodiment
Below only with embodiment, the enforcement aspect that the utility model is possible is described, however not in order to limit the category of the utility model institute wish protection, first give chat bright.
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 3 A, Fig. 4, Fig. 4 A, it shows a preferred embodiment of the present utility model, and the instrument of replaceable driving head of the present utility model comprises a package assembly 10 and an internal member 20.
With these package assembly 10 definition, there is a central axis 11, this package assembly 10 has a set of end inner edge 12 and a non-circular internal perisporium 13 (for example hexagon prism), this cover end inner edge 12 is provided with most bights 14 and the most block edges 15 between this majority bight 14, and this bight 14 to the distance of this central axis 11 is greater than this block edge 15 to the distance of this central axis 11.Say in more detail, respectively this block edge 15 is connected between adjacent two bights 14 straightly, and respectively this bight 14 is to be radially recessed this cover end inner edge 12 compared to adjacent two block edges 15.
This internal member 20 has a non-circular perimeter wall 21, and specifically, this non-circular perimeter wall 21 is corresponding with size and the shape of this non-circular internal perisporium 13.This internal member 20 is removably sheathed by this package assembly 10 and have one first on being positioned at axially and connect end 22, this first inwall that connects end 22 is provided with most axially extended cards recessed 23, this first connects end 22 and has first end face 24 towards this majority block edge 15, non-circular internal perisporium 13 is not relative circumferentially connects slidably with this for this non-circular perimeter wall 21, and this blocks recessed 23 distances to this central axis 11 and is less than this block edge 15 to the distance of this central axis 11.When the spacing of this first end face 24 and this cover end inner edge 12 is not less than a preset distance, can insert and rotate for a driving head 30, make axial sight certainly respectively this blocks recessed 23 and one this block edge 15 overlapping (as shown in Fig. 4 and 4A).
This driving head 30 comprises a first end 31, this first end 31 has most axially extended bight 311 and one second end faces 312 of supporting on side face, should the ultimate range to this central axis 11 be less than this block edge 15 to the distance of this central axis 11 to bight 311, should the distance to this second end face 312 be to be respectively axially not more than this preset distance to 311 maximum outside diameter places, bight along this.In the present embodiment, this first end 31 is provided with a polygonal ballhead 313 and a radial flange 314, between this polygonal ballhead 313 and this radial flange 314 and form constriction shape, one second end 315 of this driving head 30 is to be formed with one or four angle joints 316, and this four angle joint 316 can connect or connect for tool group such as adapter, screwdriver, various drill bit for a drive unit.
This first end 31 removable group be inserted in this first connect end 22 in, in the time respectively should supporting bight 311 rotations to corresponding card recessed 23, can insert corresponding card recessed 23, wherein by this first end face 24 and this majority block edge 15, mutually near can the first end of this driving head 30 31 being limited to this by this majority block edge 15, first connect in end 22 (as shown in Fig. 4 and 4A).
The instrument of described replaceable driving head, separately comprise Yi Diding mechanism 40, Gai Diding mechanism 40 be comprise one can shrink back be convexly set in this non-circular internal perisporium 13 or this non-circular perimeter wall 21 support body 41, should support body 41 and be resisted against between this non-circular internal perisporium 13 and this non-circular perimeter wall 21.Preferably, Gai Diding mechanism 40 separately comprise one be formed at this non-circular internal perisporium 13 and this non-circular perimeter wall 21 wherein one extend axially groove 42, this non-circular internal perisporium 13 and this non-circular perimeter wall 21 another one are provided with this and support body 41, should be located at movably this to body 41 and extend axially in groove 42.This extends axially, and groove 42 is better separately comprises that at least one being expands and darker location slot part, this at least one location slot part comprises that one approaches the first location slot part 43 and a second location slot part 44 away from this cover end inner edge 12 of this cover end inner edge 12, when this supports body 41 and supports due to this first location slot part 43, this first end face 24 is less than this preset distance with the spacing of this cover end inner edge 12, when this supports body 41 and supports due to this second location slot part 44, this first end face 24 holds the spacing of inner edge 12 to be not less than this preset distance with this cover.Gai Diding mechanism 40 can be positioned a precalculated position mutually by this package assembly 10 and this internal member 20.
Preferably, first of this internal member 20 connects the terrace 25 that end 22 inwall can be provided with a first end 31 towards this driving head 30, when this radial flange 314 is connected to this cover end inner edge 12, the second end face 312 of this first end 31 connects with this terrace 25, so can make the group of this driving head 30 and this internal member 20 and this package assembly 10 connect more firm, also can be conducive to the application of impact type power tool for example and not fragile.
Please refer to Fig. 8 and further coordinate with reference to figure 2 and 5, another embodiment of the instrument of the replaceable driving head of the utility model is below described, wherein element same with the above-mentioned embodiment is to represent with identical component symbol, and the instrument of this replaceable driving head comprises a package assembly 10 and an internal member 20.With these package assembly 10 definition, there is a central axis 11, this package assembly 10 has a set of end inner edge 12 and a non-circular internal perisporium 13, this cover end inner edge 12 is provided with most bights 14 and the most block edges 15 between this majority bight 14, this bight 14 to the distance of this central axis 11 is greater than this block edge 15 to the distance of this central axis 11, wherein a first end 31 of a driving head 30 is placed in this package assembly 10, this first end 31 has most axially extended bights 311 of supporting on side face, should the ultimate range to this central axis 11 be less than this block edge 15 to the distance of this central axis 11 to bight 311, from axial sight it, respectively bight 311 should be supported relative with this block edge 15.This internal member 20 has a non-circular perimeter wall 21 and removably sheathed by this package assembly 10, this internal member 20 has one first on being positioned at axially and connects end 22, this first inwall that connects end 22 is provided with most axially extended cards recessed 23, this blocks recessed 23 distances to this central axis 11 and is less than this block edge 15 to the distance of this central axis 11, from axial sight it, it is overlapping that respectively this blocks recessed 23 and one this block edge 15, this first connects end 22 and with this majority, blocks recessed 23 and support bight 311 and be sheathed on the first end 31 of this driving head with respect to this majority, respectively should support that bight 311 be placed in corresponding card recessed 23 and this non-circular perimeter wall 21 is with this that non-circular internal perisporium 13 is not relative circumferentially connects slidably.Wherein, by this, first connect end 22 and this majority block edge 15 and mutually near can the first end of this driving head 31 being limited to this by this majority block edge 15, first connect in end 22.
Wherein, the instrument of described replaceable driving head also can separately comprise Yi Diding mechanism 40, Gai Diding mechanism 40 be comprise one can shrink back be convexly set in this non-circular internal perisporium 13 or this non-circular perimeter wall 21 support body 41, should support body 41 is resisted against between this non-circular internal perisporium 13 and this non-circular perimeter wall 21, Gai Diding mechanism 40 can structure described above, at this, is no longer narrated.
In actual use, for example, shown in Fig. 3-6, to make this first end face 24 and the spacing of this cover end inner edge 12 be not less than this preset distance, the first end 31 of this driving head like this can insert first of this internal member 20 and connect in end 22, and rotation makes respectively to support bight 311 correspondences, and respectively this blocks recessed 23 and this block edge 15 respectively, by respectively supporting bight 311 rotation to corresponding cards, can insert corresponding card recessed 23 at recessed 23 o'clock again, and this package assembly 10 and this internal member 20 is relatively close, this majority block edge 15 first end of this driving head 31 can be limited to this first connect end 22 in, when this radial flange 314 is not connected to this cover end inner edge 12, it is centring point and this internal member and this package assembly carry out pivot pendulum relatively that this driving head is able to this polygonal ballhead.Or, can first the first end of this driving head 31 be placed in this package assembly 10, and make respectively should support bight 311 and this block edge 15 relative (as Fig. 8), then this package assembly 10 is relative sheathed with this internal member 20, this majority block edge 15 first end of this driving head 31 can be limited to this first connect end 22 in (as Fig. 5 and 6).
The applicable driving head of the utility model comprises polygonal ballhead kenel as mentioned above except can be, also can be the driving head 30a of the instrument of replacing driving head as shown in Figure 9, the second end of this driving head 30a is to be formed with a hexagon prism 31a (can be used as die nut).Will be understood that, at the driving head 30b of the instrument of the replaceable driving head of an embodiment as shown in figure 10, the second end of this driving head 30b can form a sleeve 31b, so not as limit, also can form a head such as the work such as screwdriver head or drill bit.At driving head 30c as shown in figure 11, in a first end 31c, be provided with a polygonal straight-bar 32c, wherein from axial sights, respectively overlapping to bight 33c and this block edge 15 as this polygonal straight-bar 32c, can avoid driving head 30c to deviate from this internal member.
To sum up, socket-connecting with non-circular perisporium by this package assembly and this internal member simply, can make each block edge and the bight of respectively supporting of a driving head place restrictions on mutually, and then reaching the effect that can prevent that driving head from deviating from and being convenient for changing in this internal member, its member is less, simple in structure, assembling is easy.
In addition, socket-connecting with non-circular perisporium of this package assembly and this internal member, has preferably structural strength, under high speed and/or large torsion operation, is difficult for breakdown.
Separately, the driving head of the instrument of the replaceable driving head of the utility model relatively this internal member and this package assembly carries out pivot pendulum, so can facilitate this driving head to be used in the place that is difficult for entering, thereby the work of the handling locking parts (as screw, bolt etc.) that carry out, so important that to be, the bight of respectively supporting of this driving head is subject to the restriction of corresponding block edge and can arbitrarily deviate from, and does not have the problem that operating efficiency is not good, operation is interrupted, even caused danger.
In sum, in overall construction design of the present utility model, practicality and benefit, really be meet completely in industry, develop required, and disclosed structure utility model is also to have unprecedented innovative structure, so it has " novelty " should be without doubt, the utility model can have more than known structure the enhancement of effect again, therefore also has " creativeness ".
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342538.6U CN203936887U (en) | 2014-06-24 | 2014-06-24 | The instrument of replaceable driving head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342538.6U CN203936887U (en) | 2014-06-24 | 2014-06-24 | The instrument of replaceable driving head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203936887U true CN203936887U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420342538.6U Expired - Fee Related CN203936887U (en) | 2014-06-24 | 2014-06-24 | The instrument of replaceable driving head |
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| Country | Link |
|---|---|
| CN (1) | CN203936887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI565887B (en) * | 2015-03-12 | 2017-01-11 | Ball type universal joint |
-
2014
- 2014-06-24 CN CN201420342538.6U patent/CN203936887U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI565887B (en) * | 2015-03-12 | 2017-01-11 | Ball type universal joint |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20200624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |