CN103029089A - Gear changeable structure of screw driver - Google Patents
Gear changeable structure of screw driver Download PDFInfo
- Publication number
- CN103029089A CN103029089A CN2011102929926A CN201110292992A CN103029089A CN 103029089 A CN103029089 A CN 103029089A CN 2011102929926 A CN2011102929926 A CN 2011102929926A CN 201110292992 A CN201110292992 A CN 201110292992A CN 103029089 A CN103029089 A CN 103029089A
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- pipe fitting
- screwdriver
- elongate slot
- screw driver
- shelves part
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Abstract
The invention discloses a gear changeable structure of a screw driver. The gear changeable structure of the screw driver comprises a first pipe fitting and a second pipe fitting. The first pipe fitting is fixedly connected with the screw driver, and the second pipe fitting is fixedly connected with a handle of the screw driver. Further, the first pipe fitting, the second pipe fitting, the screw driver and the handle of the screw driver are placed on the same axis. The second pipe fitting is fixedly or movably connected on the first pipe fitting to control the gear changing of the handle of the screw driver. The outer side surface of the first pipe fitting is provided with a long groove hole parallel to the axis. A gear fitting is placed on the inner side of the second pipe fitting and can be fixedly or movably placed inside the long groove hole. The first pipe fitting is provided with a plurality of ring-shaped gap grooves perpendicular to the axis. The long groove hole is vertically communicated with the ring-shaped gap grooves. The gear fitting can conduct circular motion relative to the ring-shaped gap grooves. The gear changeable structure of the screw driver is simple in structure, capable of achieving an effort-saving purpose through adjusting the two pipe fittings to separately use the positions close to the head of the screw driver when a screw is too long or is in a starting stage of mounting a bolt.
Description
Technical field
The present invention relates to a kind of shift structure for screwdriver.
Background technology
Existing screwdriver is comprised of handle and cutter head usually, and function singleness is used inconvenient.When screw is longer, often need palm and wrist screwdriver to be required great effort and small angle rotation repeatedly, so that hand ache easily, the time that turns operation is longer.Particularly when the incipient stage of a bolt is installed, do not need firmly to twist bolt, the inefficiency during incipient stage that causes construction bolt, only when the final stage of twisting bolt need to firmly be twisted bolt, screwdriver just can be fully utilized.
Summary of the invention
The objective of the invention is in order to solve the problem of above-mentioned existence, a kind of shift structure for screwdriver is provided, it comprises independently assembly of two of the first pipe fitting and the second pipe fittings, these two assemblies can be combined to one and move together or separate and make relative rotary motion, it both can be long at screw or have separated to use the part near driver bit to reach the labour-saving purpose by regulating two pipe fittings during incipient stage of construction bolt, can be combined into one and used the part away from driver bit to reach the requirement that easily tights a bolt by regulating two pipe fittings in the final stage of twisting bolt again.
Technical scheme of the present invention is as follows:
A kind of shift structure for screwdriver, comprise the first pipe fitting and the second pipe fitting, described the first pipe fitting is fixedly connected with screwdriver, described the second pipe fitting is fixedly connected with screw driver handle, and, described the first pipe fitting, the second pipe fitting, described screwdriver and screw driver handle are positioned at same axle, described the second pipe fitting can fix or movable be connected in the first pipe fitting with control screwdriver handle shift.
Preferably, offer elongate slot on the lateral surface of described the first pipe fitting parallels to the axis, described the second arranged at inner side of pipe fitting is provided with one grade of part, and described shelves part can be fixed or be movable in elongate slot.
Preferably, described the first pipe fitting is perpendicular to axial direction to have some annular neutral gear grooves, the described annular neutral gear groove of described elongate slot vertical connection, and described shelves part can be made circular motion by relatively annular neutral gear groove.
Preferably, described elongate slot is the structure of outer narrow inner width, and the shape of the inside of described elongate slot and described shelves part termination is suitable; Described shelves part termination snaps in elongate slot, and it can vertically motion in elongate slot.
Preferably, the termination of described shelves part is the T font structure.
Preferably, a storage tank is set between the inner and outer wall of described the second pipe fitting, described shelves part is wherein accommodating, and the termination of described shelves part is towards the inwall of the second pipe fitting.
Preferably, also comprise the first flexible member, described the first flexible member is arranged at described storage tank; And be positioned at the end of described shelves part.
Preferably, the length of described storage tank is greater than the length of described shelves part; And the end of described shelves part has a groove, and an end of described the first flexible member snaps in this groove, and the other end of described the first flexible member is against the storage tank bottom.
Preferably, the connectivity part of described elongate slot and described annular neutral gear groove is ramped shaped.
Preferably, also comprise the second flexible member, described the second flexible member is socketed on described the first pipe fitting, and is positioned at the lower end of described the second pipe fitting.
Compared with prior art, beneficial effect of the present invention is as follows:
The present invention both can be long at screw or have been separated to use the part near driver bit to reach the labour-saving purpose by regulating two pipe fittings during incipient stage of construction bolt, can be combined into one and used the part away from driver bit to reach the requirement that easily tights a bolt by regulating two pipe fittings in the final stage of twisting bolt again.
Description of drawings
Fig. 1 is the structural representation of pipe assembly on the embodiment of the invention;
Fig. 2 is the generalized section of managing assembly and locking column structure under the embodiment of the invention;
Fig. 3 is the cross-sectional view of embodiment of the invention locking column;
Fig. 4 is that all designs of part and the rigging position of the embodiment of the invention concerns schematic diagram;
Fig. 5 is the upper pipe assembly of the embodiment of the invention and the generalized section that lower pipe assembly moves together;
Fig. 6 is the generalized section of the upper pipe assembly of the embodiment of the invention and lower each self-separation of pipe assembly, self-movement;
Fig. 7 upward manages the cross-sectional view that assembly and lower pipe assembly move together after the embodiment of the invention assembling;
Fig. 8 is upper cross-sectional view of managing assembly and the self-movement of lower pipe assembly after the embodiment of the invention assembling.
The specific embodiment
A kind of shift structure for screwdriver, comprise the first pipe fitting and the second pipe fitting, described the first pipe fitting is fixedly connected with screwdriver, described the second pipe fitting is fixedly connected with screw driver handle, and, described the first pipe fitting, the second pipe fitting, described screwdriver and screw driver handle are positioned at same axle, described the second pipe fitting can fix or movable be connected in the first pipe fitting with control screwdriver handle shift.
Offer elongate slot on the lateral surface of described the first pipe fitting parallels to the axis, described the second arranged at inner side of pipe fitting is provided with one grade of part, and described shelves part can be fixed or be movable in elongate slot.
Described the first pipe fitting is perpendicular to axial direction to have some annular neutral gear grooves, the described annular neutral gear groove of described elongate slot vertical connection, and described shelves part can be made circular motion by relatively annular neutral gear groove.
The present invention will be further described with specific embodiment by reference to the accompanying drawings in the below.
Embodiment
A kind of shift structure for screwdriver, comprise the first pipe fitting and the second pipe fitting, described the first pipe fitting is fixedly connected with screwdriver, described the second pipe fitting is fixedly connected with screw driver handle, and, described the first pipe fitting, the second pipe fitting, described screwdriver and screw driver handle are positioned at same axle, described the second pipe fitting can fix or movable be connected in the first pipe fitting with control screwdriver handle shift.
Offer elongate slot on the lateral surface of described the first pipe fitting parallels to the axis, described the second arranged at inner side of pipe fitting is provided with one grade of part, and described shelves part can be fixed or be movable in elongate slot.
Described the first pipe fitting is perpendicular to axial direction to have some annular neutral gear grooves, the described annular neutral gear groove of described elongate slot vertical connection, and described shelves part can be made circular motion by relatively annular neutral gear groove.
Such as Fig. 1, Fig. 2 and Fig. 4, in the present embodiment, described shift structure applications is in a screwdriver.Described the first pipe fitting is upper pipe assembly 1, and described the second pipe fitting is lower pipe assembly 2.Described upper pipe assembly 1 and lower pipe assembly 2 are hollow cylindrical structure.Upper pipe assembly 1 is socketed in the lower pipe assembly 2.
Offer elongate slot 12 on the lateral surface of upper pipe assembly 1 parallels to the axis, lower pipe assembly 2 inboards are provided with one grade of part, and described shelves part can be fixed or be movable in elongate slot 12.
Elongate slot 12 is ramped shaped with the connectivity part of annular neutral gear groove 11.
In the present embodiment, described block piece is locking column 3.
Elongate slot 12 is the structure of outer narrow inner width, and the shape of the inside of elongate slot 12 and locking column 3 terminations is suitable; Locking column 3 terminations snap in elongate slot, and it can vertically motion in elongate slot 12.
One first storage tank 211 is set between the inner and outer wall of upper pipe assembly 1 and lower pipe assembly 2, and locking column 3 is wherein accommodating, and the termination of locking column 3 faces down and manages the inwall of assembly 2.
Described shift structure also comprises the first flexible member, and the first flexible member is arranged at the first storage tank 211; And be positioned at the end of locking column 3.
The length of the first storage tank 211 is greater than the length of locking column 3; And the end of locking column 3 has a groove, and an end of described the first flexible member snaps in this groove, and the other end of described the first flexible member is against the first storage tank 211 bottoms.
In the present embodiment, the first flexible member of described locking column structure is stage clip 30.
See Fig. 2 and Fig. 3, in the present embodiment, locking column 3 is I-shaped, and the termination is the T font structure., locking column 3 comprises end 32 and another wide end 31 wide outside and narrow inside.An end 32 wide outside and narrow inside of locking column 3 comprises wide section 321 short and narrow a section 322 an of weak point, 31 ends of locking column are wide section an of length, and an end 32 wide outside and narrow inside of locking column 3 is all adaptive with the annular neutral gear groove 11 and the elongate slot 12 that are arranged on the pipe assembly 1.Accordingly, an end 32 wide outside and narrow inside of elongate slot 12 corresponding locking columns 3 is set to inner wide outer narrow shape, and referring to Fig. 1, locking column 3 can slide along elongate slot 12.Simultaneously, the side height of annular neutral gear groove 11 is not less than wide section 321 height of an end 32 wide outside and narrow inside of locking column 3, so that an end 32 wide outside and narrow inside of locking column 3 can embed the slotted eye of annular neutral gear groove 11, and can be around annular neutral gear groove 11 motions.And in the present embodiment, a bottom surface 111 of annular neutral gear groove 11 is set to the inclined-plane, sees Fig. 1.During implementation, the shape of locking column structure and shape and elongate slot and annular neutral gear groove also can have a lot of distortion, and the present invention does not make restriction to this.
The first storage tank 211 is communicated to lower pipe assembly 2 medial surfaces, its degree of depth is not less than the length of locking column 3, the wide section long end 31 that comprises of locking column 3 is arranged on the bottom of the first storage tank 211, and an end 32 ends wide outside and narrow inside of locking column 3 are arranged on the outside of the first storage tank 211.
The wide section long end 31 that comprises of locking column 3 is provided with the second storage tank 311, and stage clip 30 1 ends are arranged on the first storage tank 211 bottoms, and the other end is arranged on the second storage tank 311 bottoms, sees Fig. 2 and Fig. 3.During implementation, the setting of locking column structure on lower pipe assembly also can have a lot of distortion, and the present invention does not make restriction to this.
Present embodiment also comprises the second flexible member, and the second flexible member is stage clip 4 herein.Stage clip 4 is socketed on the pipe assembly 1, and is positioned at the lower end of lower pipe assembly 2.
Referring to Fig. 1, bottom 13 bilateral symmetry of upper pipe assembly 1 are provided with two backing pins 131,132, and an end of stage clip 4 is arranged on above-mentioned two backing pins 131,132, are connected with lower pipe assembly 2 conflicts after the other end assembling.During implementation, the set-up mode of the second flexible member also can have a lot of distortion, and the present invention does not make restriction to this.
Further, also comprise handle 5, handle spacer 6 and handle top 7 in the present embodiment, see Fig. 4, handle 5 is socketed on lower pipe assembly 2 outsides with handle spacer 6 and is fixedly connected with, and handle top 7 is socketed on pipe assembly 1 outside, makes this screw driver handle be convenient to grip.
Below in conjunction with accompanying drawing operation principle of the present invention is described.
Referring to Fig. 5, an end 32 wide outside and narrow inside of locking column 3 can insert in the elongate slot 12 of pipe assembly 1, when an end 32 wide outside and narrow inside of locking column 3 is arranged in elongate slot 12 and is not arranged in annular neutral gear groove 11, upper pipe assembly 1 and lower pipe assembly 2 can not relatively rotate, and together motion is combined into one when turning screw.When an end 32 wide outside and narrow inside of locking column 3 slides in the annular neutral gear groove 11 along elongate slot 12, such as Fig. 6, locking column 3 can be around annular neutral gear groove 11 motions, and pipe assembly 1 and lower pipe assembly 2 can relatively rotate on this moment, are separated into separately independently assembly.
The below is described further operation principle of the present invention and using method as an example of concrete operations example.
Fig. 7 is the screwdriver structure profile that the assembling of present embodiment is finished, and handle 5 is socketed on lower pipe assembly 2 outsides with handle spacer 6 and is fixedly connected with, and handle top 7 is socketed on pipe assembly 1 outside.Under the conventional state, an end 32 wide outside and narrow inside of locking column 3 is arranged in position shown in Fig. 7 of elongate slot 12, and the together motion that is combined into one of pipe assembly 1 and lower pipe assembly 2 can not relatively rotate on this moment, grip the handle 5 away from driver bit during use, firmly convenient.When managing assembly 1 and lower pipe assembly 2 split movement on the needs, hold handle 5, upwards spur simultaneously handle top 7 end 32 wide outside and narrow inside of locking column 3 is entered in the annular neutral gear groove 11, pipe assembly 1 and lower pipe assembly 2 can relatively rotate on this moment, and stage clip 4 is compressed, such as Fig. 8.Upper pipe assembly 1 and lower pipe assembly 2 relative rotations one are made an end 32 disengaging elongate slot 12 wide outside and narrow inside of locking column 3 less than 360 angle.Then the pulling force that adds is cancelled on release handle top 7, compressed stage clip 4 is the upper pipe of pulling assembly 1 downwards, make the end 32 wide outside and narrow inside of locking column 3 slip over the ramped bottom surface 111 of annular neutral gear groove 11, compress simultaneously the stage clip 30 in the second storage tank 311 that is arranged on locking column, an end 32 wide outside and narrow inside of locking column 3 is retracted in the first storage tank 211 of lower pipe assembly 2, a locking column this moment end 32 wide outside and narrow inside breaks away from annular neutral gear groove 11 fully and contacts with upper pipe assembly 1 lateral surface, upper pipe assembly 1 and lower pipe assembly 2 are separated into separately independently assembly, can relatively rotate.And because the structure of elongate slot 12 inner wide and outer narrows, locking column 3 ends 32 wide outside and narrow inside can again not snapped in the elongate slot 12 of upper pipe assembly 1 and be locked in the time of can guaranteeing pipe assembly 1 with lower pipe assembly 2 relative rotation.The handle that grip near driver bit this moment pushes up 7 the turn of the screws, can reach the labour-saving purpose by initial period very long at screw or the turn of the screw.
More than disclosed specific embodiments of the invention just be used for helping to set forth the present invention, and be not used in the restriction protection domain.Obviously, according to the content of this specification, can make many modifications and variations.These embodiment are chosen and specifically described to this specification, is in order to explain better principle of the present invention and practical application, thereby makes one of ordinary skill in the art can utilize well the present invention.The present invention only is subjected to the restriction of claims and four corner and equivalent.
Claims (10)
1. shift structure that is used for screwdriver, it is characterized in that, comprise the first pipe fitting and the second pipe fitting, described the first pipe fitting is fixedly connected with screwdriver, described the second pipe fitting is fixedly connected with screw driver handle, and described the first pipe fitting, the second pipe fitting, described screwdriver and screw driver handle are positioned at same axle, described the second pipe fitting can fix or movable be connected in the first pipe fitting with control screwdriver handle shift.
2. a kind of shift structure for screwdriver as claimed in claim 1, it is characterized in that, offer elongate slot on the lateral surface of described the first pipe fitting parallels to the axis, described the second arranged at inner side of pipe fitting is provided with one grade of part, and described shelves part can be fixed or be movable in elongate slot.
3. a kind of shift structure for screwdriver as claimed in claim 2, it is characterized in that, described the first pipe fitting is perpendicular to axial direction to have some annular neutral gear grooves, the described annular neutral gear groove of described elongate slot vertical connection, and described shelves part can be made circular motion by relatively annular neutral gear groove.
4. a kind of shift structure for screwdriver as claimed in claim 2 is characterized in that described elongate slot is the structure of outer narrow inner width, and the shape of the inside of described elongate slot and described shelves part termination is suitable; Described shelves part termination snaps in elongate slot, and it can vertically motion in elongate slot.
5. a kind of shift structure for screwdriver as claimed in claim 2 is characterized in that, the termination of described shelves part is the T font structure.
6. according to claim 2 or 5 described a kind of shift structures for screwdriver, it is characterized in that, a storage tank is set between the inner and outer wall of described the second pipe fitting, described shelves part is wherein accommodating, and the termination of described shelves part is towards the inwall of the second pipe fitting.
7. a kind of shift structure for screwdriver according to claim 6 is characterized in that, also comprise the first flexible member, described the first flexible member is arranged at described storage tank; And be positioned at the end of described shelves part.
8. a kind of shift structure for screwdriver according to claim 7 is characterized in that, the length of described storage tank is greater than the length of described shelves part; And the end of described shelves part has a groove, and an end of described the first flexible member snaps in this groove, and the other end of described the first flexible member is against the storage tank bottom.
9. a kind of shift structure for screwdriver according to claim 3 is characterized in that the connectivity part of described elongate slot and described annular neutral gear groove is ramped shaped.
10. a kind of shift structure for screwdriver according to claim 1 is characterized in that, also comprise the second flexible member, described the second flexible member is socketed on described the first pipe fitting, and is positioned at the lower end of described the second pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102929926A CN103029089A (en) | 2011-09-30 | 2011-09-30 | Gear changeable structure of screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102929926A CN103029089A (en) | 2011-09-30 | 2011-09-30 | Gear changeable structure of screw driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103029089A true CN103029089A (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102929926A Pending CN103029089A (en) | 2011-09-30 | 2011-09-30 | Gear changeable structure of screw driver |
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| Country | Link |
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| CN (1) | CN103029089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942738A (en) * | 2015-06-18 | 2015-09-30 | 柳州长虹机器制造公司 | Bi-directional speed changing screw driver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620613Y (en) * | 2003-04-28 | 2004-06-16 | 李春林 | Adjustable screw driver |
| CN1990187A (en) * | 2005-12-30 | 2007-07-04 | 罗伯特·博世有限公司 | Screwdriver with switchable magnetisation |
| CN101269483A (en) * | 2008-05-08 | 2008-09-24 | 上海昆杰五金工具有限公司 | Multifunctional screwdriver |
| CN201524983U (en) * | 2009-11-16 | 2010-07-14 | 绍兴恒力工具有限公司 | Screw driver |
| RU2415007C2 (en) * | 2008-02-26 | 2011-03-27 | Иван Константинович Клюев | Universal screwdriver |
| CN202271320U (en) * | 2011-09-30 | 2012-06-13 | 上海昆杰五金工具有限公司 | Gear shifting structure for screw driver |
-
2011
- 2011-09-30 CN CN2011102929926A patent/CN103029089A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620613Y (en) * | 2003-04-28 | 2004-06-16 | 李春林 | Adjustable screw driver |
| CN1990187A (en) * | 2005-12-30 | 2007-07-04 | 罗伯特·博世有限公司 | Screwdriver with switchable magnetisation |
| RU2415007C2 (en) * | 2008-02-26 | 2011-03-27 | Иван Константинович Клюев | Universal screwdriver |
| CN101269483A (en) * | 2008-05-08 | 2008-09-24 | 上海昆杰五金工具有限公司 | Multifunctional screwdriver |
| CN201524983U (en) * | 2009-11-16 | 2010-07-14 | 绍兴恒力工具有限公司 | Screw driver |
| CN202271320U (en) * | 2011-09-30 | 2012-06-13 | 上海昆杰五金工具有限公司 | Gear shifting structure for screw driver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942738A (en) * | 2015-06-18 | 2015-09-30 | 柳州长虹机器制造公司 | Bi-directional speed changing screw driver |
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Application publication date: 20130410 |