CN203918902U - Seven-star torsion screwdriver - Google Patents
Seven-star torsion screwdriver Download PDFInfo
- Publication number
- CN203918902U CN203918902U CN201420294894.5U CN201420294894U CN203918902U CN 203918902 U CN203918902 U CN 203918902U CN 201420294894 U CN201420294894 U CN 201420294894U CN 203918902 U CN203918902 U CN 203918902U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- output shaft
- housing
- hole
- torsion
- Prior art date
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 239000012634 fragment Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000669069 Chrysomphalus aonidum Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a kind of seven-star torsion screwdriver, at least comprise the driving side's tenon with housing, output shaft and steel ball spring torsion mechanism, output shaft is located in housing, the side's of driving tenon is provided with and connects the central through hole to bottom from top, output shaft is provided with the central through hole coaxial with described housing, the top of output shaft is provided with steel ball holder, and housing is stretched out in bottom; Bonnet, covers tightly downwards from the top of housing, is provided with and housing and the coaxial bonnet through hole of output shaft; Steel ball spring torsion mechanism is located between housing and output shaft, is at least provided with egative film, steel ball, flat shim, stacking spring sheet from top to bottom and regulates blind nut, and egative film is provided with centre bore, on the contact site of steel ball, is provided with small sircle hole, can make steel ball snap in; Flat shim is located at below steel ball holder, is supported by stacking spring sheet; Regulate blind nut upwards to support stacking spring sheet from housing bottom; Inside, the nearly bottom of output shaft, is provided with a tight lock part.The utility model also can be used in conjunction with other screwdrivers.
Description
Technical field
The utility model relates to a kind of instrument of holding screw nail, and particularly one is determined moment of torsion screwdriver.
Background technology
Screwdriver is to be a kind ofly used for twisting screw to force its instrument in place, conventionally has a thin sphenocephaly, can insert in the line of rabbet joint or recess of screw cap--also claim by " screwdriver ".Mainly contain two kinds of a word and crosses.Common hex(agonal)screw cutter in addition, comprises two kinds of interior hexagonal and outer-hexagonals.
It is a kind of for determining fastening (locking) screw of torque value or measuring fastening (locking) screw required torque size determining torsion screwdriver, and super torsion dallies, determines the torsion screwdriver of torque value.Circular scale torque screwdriver is suitable for the tension that torsion is less, detects and fracture test, is easy to hold operation, and it is of a specified duration that definition maintains.
General driving side's tenon of determining moment of torsion screwdriver is solid, puts coupling box for card, can easily screw and nut be tightened by certain moment of torsion.
As: the patent that publication number is CN101301741 discloses a kind of screw driver with adjustable torque, inside is solid, comprise handle, criticize bar and screwdriver bit, also comprise connecting axle, connector, adjustable ring, center-pole and steel ball spring torsion mechanism, connecting axle is connected to handle front end, connector is connected to the front end of connecting axle and is enclosed within batch rod rear end, adjustable ring is sleeved on handle, on connecting axle and connector, one end of center-pole is inserted in connecting axle and is connected with connecting axle, the other end inserts in batch bar and is connected with batch bar, steel ball spring torsion mechanism is radially through connecting axle, its the inner contacts with center-pole and is connected, outer end contacts with adjustable ring and is connected.This invention screw driver with adjustable torque in use, can be controlled torsion effectively, handled easily, exerts oneself when excessive to dally, and can effectively protect operated workpiece.But this invention function singleness, can only install corresponding screw-nut by the screwdriver bit of himself.
Utility model content
The utility model aims to provide a kind of seven-star torsion screwdriver, the function, the capable of adjusting torque that the utility model are not only had tighten simply screw and nut, the resultant effect that more can use together with other screwdrivers.
For achieving the above object, a kind of technical scheme that the utility model provides is: a kind of seven-star torsion screwdriver, at least comprise the driving side's tenon with housing, output shaft and steel ball spring torsion mechanism, output shaft is located in housing, described driving side tenon is hollow structure, centre is provided with from the top of described seven-star torsion screwdriver and connects the central through hole to bottom, wherein
Described output shaft is provided with central through hole, coaxial with described housing, and the top of described output shaft is provided with steel ball holder, and housing is stretched out in bottom;
One bonnet, covers tightly downwards from the top of described housing, is provided with and described housing and the coaxial bonnet through hole of output shaft;
Described steel ball spring torsion mechanism is located between housing and output shaft, at least sequentially be provided with egative film, two above steel balls, flat shim, stacking spring sheets from top to bottom and regulate blind nut, described egative film is provided with centre bore, on the contact site of described steel ball, be provided with small sircle hole, can make described steel ball snap in; Described flat shim is located at below steel ball holder, is supported by stacking spring sheet; Described adjusting blind nut is upwards supported stacking spring sheet from housing bottom;
Inside, the nearly bottom of described output shaft, is provided with one and is located at by steel ball shell fragment and a tight lock part that the steel ball on output shaft sidewall forms, and described steel ball shell fragment is by this control steel ball control.
The setting of the utility model torque value can regulate blind nut to compress stacking spring sheet by turn, thereby realizes the setting of torque value.Thrust is larger, and moment of torsion is also larger, otherwise little.In the time coordinating with other screwdrivers, the top that the screwdriver bit of its screwdriver inserts the utility model seven-star torsion screwdriver connects the central through hole to bottom, the portion's of being locked locking.The utility model not only can be tightened screw and nut easily by certain moment of torsion, and can with other screwdrivers, as do not have the screwdriver of torsion setting function to use together.
Operation principle of the present utility model is: first regulate blind nut that torque value is set by adjusting.In the time that the output shaft of driving side's tenon is subject to moment of torsion, the steel ball of supporting with described egative film is withstood in the small sircle hole of described egative film by stacking spring sheet.In the time that output shaft is added in axial thrust load that the radial load on steel ball produces and is greater than the axial compressive force that stacking spring sheet produces, described steel ball will climb out of the small sircle hole on egative film, and seven-star screwdriver is skidded, and has also reached the torque value of setting.
On such scheme basis, described plate center hole and described output shaft central through hole junction are provided with axial anti-wear gasket.
On such scheme basis, described adjusting blind nut is by the radially tightening of interior hexagonal holding screw.Make to regulate the position of blind nut to be fixed, in case displacement.
In order to adapt to different users's needs, described housing periphery is provided with the R groove of 7 recesses, as seven lobe coupling boxs.Can adapt to most use habit, though the size of hand, always there is the optimum position of the finger application of force.
Superiority of the present utility model is, described driving side tenon is hollow structure, hole always can the whole screwdriver of pass-out top, it not only has the function of tightening screw and nut, and nut is spelled when tight, can from middle hole, put into another screwdriver (can be arbitrary shape screwdrivers such as a word, cross, hexagonal) screw is fixed, spell when tight at nut, make screw can not follow one to run up.When particularly holding screw has requirement to axial dimension, seem particularly important.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is for controlling steel ball schematic diagram;
Fig. 3 is the utility model top view;
Fig. 4 is steel ball force analysis figure in Fig. 1;
Fig. 5 is that the utility model and other screwdrivers are used in combination figure.
Attached number in the figure explanation:
1---housing;
2---bonnet; 21---bonnet through hole;
3---egative film;
31---plate center hole 32,33---first, second small sircle hole;
4---anti-wear gasket;
51,52---steel ball one, two;
6---output shaft;
61---output shaft central through hole; 62---steel ball holder;
7---flat shim; 8---stacking spring sheet; 9---interior hexagonal holding screw;
10---regulate blind nut; 11---steel ball shell fragment; 12---control steel ball;
20---screwdriver.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is further illustrated.
embodiment 1
If accompanying drawing 1 the utility model structural representation, Fig. 2 control steel ball schematic diagram and Fig. 3 are as shown in the utility model top view, a kind of seven-star torsion screwdriver, comprise the driving side's tenon with housing 1, output shaft 6 and steel ball spring torsion mechanism, output shaft 6 is located in housing 1, described driving side tenon is hollow structure, centre is provided with from the top of described seven-star torsion screwdriver and connects the central through hole to bottom, wherein
Described output shaft 6 is provided with central through hole 61, and coaxial with described housing 1, the top of described output shaft 6 is provided with steel ball holder 62, and housing 1 is stretched out in bottom;
One bonnet 2, covers tightly downwards from the top of described housing 1, is provided with and described housing 1 and the coaxial bonnet through hole 21 of output shaft 6;
Described steel ball spring torsion mechanism is located between housing 1 and output shaft 6, at least sequentially be provided with egative film 3, steel ball 1 and steel ball 2 52, flat shim 7, stacking spring sheet 8 from top to bottom and regulate blind nut 10, described egative film 3 is provided with centre bore 31, on the contact site of described steel ball 1 and steel ball 2 52, be respectively equipped with the first small sircle hole 32 and the second small sircle hole 33, can make described steel ball snap in; Described flat shim 7 is located at below steel ball holder 62, is supported by stacking spring sheet 8; Described adjusting blind nut 10 is upwards supported stacking spring sheet 8 from housing bottom;
Described adjusting blind nut 10, by the radially tightening of interior hexagonal holding screw 9, makes to regulate the position of blind nut 10 to be fixed, in case displacement;
Described output shaft 6 inside, nearly bottom, are provided with one and are located at by steel ball shell fragment 11 and a tight lock part that the control steel ball 12 on output shaft 6 sidewalls forms, and described steel ball shell fragment 11 is controlled by this control steel ball 12.
In the present embodiment, described plate center hole 31 is provided with axial anti-wear gasket 4 with described output shaft central through hole 61 junctions.
Assembling mode of the present utility model is: at the interior installation steel ball spring of housing 1 torsion mechanism, sequentially place egative film 3, anti-wear gasket 4, install that steel ball completes at output shaft 6, flat shim 7, stacking spring sheet 8, regulate blind nut 10, use by radially tightening adjusting blind nut 10 of interior hexagonal holding screw 9, bonnet 2 is finally installed.
The setting of the utility model torque value can regulate blind nut 10 to compress stacking spring sheet 8 by turn, thereby realizes the setting of torque value.Thrust is larger, and moment of torsion is also larger, otherwise little.
Operation principle of the present utility model is: as shown in Figure 4, first regulate blind nut 10 that torque value is set by adjusting, described adjusting blind nut 10 is by the radially tightening of interior hexagonal holding screw 9, in the time that the output shaft 6 of driving side's tenon is subject to moment of torsion, the steel ball 52 of supporting with described egative film 3 is withstood in the small sircle hole 33 of described egative film by stacking spring sheet 8.In the time that output shaft 6 is added in component F1 that the radial load F on steel ball 52 produces and is greater than the axial compressive force F2 that stacking spring sheet 8 produces, described steel ball 52 will climb out of the small sircle hole 33 on egative film, and seven-star screwdriver is skidded, and has also reached the torque value of setting.
In order to adapt to different users's needs, described housing 1 periphery of the present embodiment is provided with the R groove of 7 recesses, as seven lobe coupling boxs.The design can adapt to most use habit.
In the present embodiment, only establish two steel balls, steel ball 1 and steel ball 2 52, according to the different needs of design, this steel ball number can increase.
embodiment 2
If Fig. 5 is that the utility model and other screwdrivers are used in combination as shown in figure, on the use basis of embodiment 1, the present embodiment is the effect being used in combination with screwdriver 20.
In the time coordinating with screwdriver 20, the top that the screwdriver bit of its screwdriver 20 inserts the utility model seven-star torsion screwdriver connects the central through hole to bottom, and steel ball shell fragment 11 and is located at the tight lock part locking that the control steel ball 12 on output shaft 6 sidewalls forms.The screwdriver 20 that this is put into can be the screwdriver of any shapes such as a word, cross, hexagonal, by this kind of combination, screw is fixed, and spells when tight at nut, makes screw can not follow one to run up.
The utility model not only can be tightened screw and nut easily by certain moment of torsion, and can with other screwdrivers, as do not have the screwdriver of torsion setting function to use together.
Claims (4)
1. a seven-star torsion screwdriver, at least comprises that output shaft is located in housing, it is characterized in that with driving side's tenon of housing, output shaft and steel ball spring torsion mechanism, and described driving side tenon is provided with and connects the central through hole to bottom from top, wherein,
Described output shaft is provided with central through hole, coaxial with described housing, and the top of described output shaft is provided with steel ball holder, and housing is stretched out in bottom;
One bonnet, covers tightly downwards from the top of described housing, is provided with and described housing and the coaxial bonnet through hole of output shaft;
Described steel ball spring torsion mechanism is located between housing and output shaft, at least sequentially be provided with egative film, two above steel balls, flat shim, stacking spring sheets from top to bottom and regulate blind nut, described egative film is provided with centre bore, on the contact site of described steel ball, be provided with small sircle hole, can make described steel ball snap in; Described flat shim is located at below steel ball holder, is supported by stacking spring sheet; Described adjusting blind nut is upwards supported stacking spring sheet from housing bottom;
Inside, the nearly bottom of described output shaft, is provided with one and is located at by steel ball shell fragment and a tight lock part that the steel ball on output shaft sidewall forms.
2. seven-star torsion screwdriver according to claim 1, is characterized in that, described plate center hole and described output shaft central through hole junction are provided with axial anti-wear gasket.
3. seven-star torsion screwdriver according to claim 1, is characterized in that, described adjusting blind nut is by the radially tightening of interior hexagonal holding screw.
4. seven-star torsion screwdriver according to claim 2, is characterized in that, described housing periphery is provided with the R groove of 7 recesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294894.5U CN203918902U (en) | 2014-06-04 | 2014-06-04 | Seven-star torsion screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294894.5U CN203918902U (en) | 2014-06-04 | 2014-06-04 | Seven-star torsion screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203918902U true CN203918902U (en) | 2014-11-05 |
Family
ID=51814777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420294894.5U Expired - Lifetime CN203918902U (en) | 2014-06-04 | 2014-06-04 | Seven-star torsion screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203918902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393835A (en) * | 2017-02-08 | 2018-08-14 | C.& E.泛音有限公司 | Torque-release couplings for hand tools |
| CN108926127A (en) * | 2018-07-27 | 2018-12-04 | 天津市丰立银锚幕墙工程有限公司 | A kind of pin-connected panel heat insulation type aluminium alloy cabinet |
| CN114227592A (en) * | 2021-11-23 | 2022-03-25 | 广东技术师范大学 | Self-locking type multifunctional screwdriver head clamping device |
-
2014
- 2014-06-04 CN CN201420294894.5U patent/CN203918902U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393835A (en) * | 2017-02-08 | 2018-08-14 | C.& E.泛音有限公司 | Torque-release couplings for hand tools |
| CN108926127A (en) * | 2018-07-27 | 2018-12-04 | 天津市丰立银锚幕墙工程有限公司 | A kind of pin-connected panel heat insulation type aluminium alloy cabinet |
| CN108926127B (en) * | 2018-07-27 | 2020-07-31 | 天津市丰立银锚幕墙工程有限公司 | An assembled heat-insulating aluminum alloy cabinet |
| CN114227592A (en) * | 2021-11-23 | 2022-03-25 | 广东技术师范大学 | Self-locking type multifunctional screwdriver head clamping device |
| CN114227592B (en) * | 2021-11-23 | 2023-09-08 | 广东技术师范大学 | Self-locking type multifunctional batch head clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term |