CN101301741A - Screw driver with adjustable torque - Google Patents
Screw driver with adjustable torque Download PDFInfo
- Publication number
- CN101301741A CN101301741A CNA2008100397294A CN200810039729A CN101301741A CN 101301741 A CN101301741 A CN 101301741A CN A2008100397294 A CNA2008100397294 A CN A2008100397294A CN 200810039729 A CN200810039729 A CN 200810039729A CN 101301741 A CN101301741 A CN 101301741A
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- China
- Prior art keywords
- connecting axle
- steel ball
- handle
- adjustable
- screw driver
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Abstract
The invention provides a torque-adjustable screwdriver, comprising a handle, a screwdriver rod and a screwdriver head, a connecting shaft, a connecting head, an adjusting ring, a central rod and a ball bearing spring torsion mechanism; wherein, the connecting shaft is connected at the front end of the handle; the connecting head is connected at the front end of the connecting shaft and sleeved at the rear end of the screwdriver rod; the adjusting ring is sleeved on the handle, the connecting shaft and the connecting head; one end of the central rod is inserted into the connecting shaft and connected with the connecting shaft and the other end thereof is inserted into the screwdriver rod and connected with the screwdriver rod; the ball bearing spring torque mechanism pushes through the connecting shaft in the radial direction, the internal end thereof is connected with the central rod in a contacting way and the external end thereof is connected with the adjusting ring in a contacting way. When the torque-adjustable screwdriver of the invention is in use, the torque can be effectively controlled, the operation is convenient, an idler rotation effect can be generated when the force is excessive, and the operated workpiece can be effectively protected.
Description
Technical field
The present invention relates to hand-held tool, particularly a kind of screw driver with adjustable torque.
Background technology
Screwdriver is widely used in the various workpiece of screw dismounting, and the screwdriver of prior art generally comprises that manual screw is criticized, electric screw is criticized, pneumatic screw is criticized.Electronic and the pneumatic screwdriver of prior art has the torsion regulatory function, but in use because volume is bigger than normal and the influence of wire connecting or tracheae, and the limitation of use is bigger, is used for the fixing post of production line more and uses.Manual screw is criticized when the various workpiece of dismounting, higher or on the low side owing to exert oneself, can cause the more crisp workpiece torsional fracture of material or connect and become flexible, especially the screw of working of plastics connects, the higher meeting of exerting oneself causes screw hole to damage, thereby causes whole work-piece to scrap (as cabinet).
Summary of the invention
Purpose of the present invention in order to solve the problems referred to above that prior art exists, provides a kind of screw driver with adjustable torque exactly.
Another object of the present invention provides the screw driver with adjustable torque less, the convenient various environment uses of a kind of volume, simple in structure, lower-cost, that popularization is good.
Technical scheme of the present invention is: a kind of screw driver with adjustable torque, 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 the handle front end, connector is connected the front end of connecting axle and is enclosed within batch rod rear end, adjustable ring is sleeved on handle, on connecting axle and the connector, one end of center-pole inserts in the connecting axle and links to each other with connecting axle, the other end inserts in batch bar and links to each other with batch bar, the steel ball spring torsion mechanism radially passes connecting axle, its the inner contacts with center-pole and links to each other, and the outer end contacts with adjustable ring and links to each other.
Described steel ball spring torsion mechanism comprises three groups of steel ball spring assemblies, and every group comprises two steel balls and a spring, and two steel balls are separately positioned on the two ends of spring, and inner steel ball is pressed on the center-pole, and the outer end steel ball is pressed on the adjustable ring.
Described connecting axle is provided with the axially extending bore that is used to insert center-pole, and is provided with three radial direction through hole that are used to insert the steel ball spring torsion mechanism at its leading portion, and three radial direction through hole are arranged on the same circumference and equidistantly distribute.
Described adjustable ring back segment is provided with and is used for the internal thread that is connected with handle, and front end is provided with one and is used for the concave station that is connected with connector, is provided with one and is used for contacting with steel ball the internal conical surface that links to each other between internal thread and concave station.
Described center-pole is provided with three axial notches that are used to embed steel ball, and steel ball can slide in this groove.
Described handle front portion is provided with and is used to the external screw thread that inserts the axial long hole of connecting axle and be used for being threaded with adjustable ring, and the handle rear portion is connected with handle cap, and is provided with in a plurality of axial long holes that are used to store screwdriver bit are sealed on by handle cap.
Also comprise buffer spring, the front end of described connecting axle is provided with the groove that is used to insert spring, the rear end of described batch of bar is provided with the undergauge step, and insert in the groove of connecting axle the rear end of buffer spring, and front end sleeve is contained on the undergauge step of criticizing bar and with connector and links to each other at interval.
Screw driver with adjustable torque of the present invention can be controlled torsion in use effectively, handled easily, exerts oneself empty swirl effect to take place when excessive, can protect operated workpiece effectively.Screwdriver structure of the present invention is fairly simple, and the ratchet screw driver of manufacturing cost and existing market is suitable, has the very high meaning that popularizes.
Description of drawings
Fig. 1 is the structural representation of screw driver with adjustable torque of the present invention;
Fig. 2 is that the A-A of screwdriver shown in Figure 1 is to the sectional structure schematic diagram;
Fig. 3 is the decomposition texture schematic diagram of screw driver with adjustable torque of the present invention;
Fig. 4 is the structural representation of the connecting axle among the present invention;
Fig. 5 is that the B-B of connecting axle shown in Figure 4 is to the sectional structure schematic diagram
Fig. 6 is the sectional structure schematic diagram of the adjustable ring among the present invention;
Fig. 7 is the center-pole among the present invention and the structural representation of steel ball spring torsion mechanism;
Fig. 8 is that the C-C of Fig. 7 is to the sectional structure schematic diagram;
Fig. 9 is that the D-D of Fig. 7 is to the sectional structure schematic diagram;
Figure 10 is the perspective view of the handle among the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3, cooperate referring to all the other each figure, screw driver with adjustable torque of the present invention comprises handle 1, batch bar 2, screwdriver bit 3, connecting axle 4, connector 5, adjustable ring 6, center-pole 7, steel ball spring torsion mechanism 8 and buffering spring 9.Connect the front end that .4 is connected handle 1, connector 5 is connected the front end of connecting axle 4 and is enclosed within batch bar 2 rear ends, adjustable ring 6 is sleeved on handle 1, connecting axle 4 and the connector 5, one end of center-pole 7 inserts in the connecting axle 4 and links to each other with connecting axle, the other end inserts in batch bar 2 and links to each other with batch bar, steel ball spring torsion mechanism 8 radially passes connecting axle 4, and its inner contacts with center-pole 7 and links to each other, and the outer end contacts with adjustable ring 6 and links to each other.
Cooperation is referring to Fig. 7, Fig. 8, steel ball spring torsion mechanism 8 among the present invention comprises three groups of steel ball spring assemblies, every group comprises 81,83 and springs 82 of two steel balls, two steel balls 81,83 are separately positioned on the two ends of spring 82, inner steel ball 81 is pressed on the center-pole 7, and outer end steel ball 83 is pressed on the adjustable ring.
Cooperation is referring to Fig. 4, Fig. 5, connecting axle 4 among the present invention is provided with the axially extending bore 41 that is used to insert center-pole 7, and be provided with 42, three radial direction through hole of three radial direction through hole that are used to insert the steel ball spring torsion mechanism at its leading portion and be arranged on the same circumference and equidistantly distribute.Front end at connecting axle 4 is provided with the groove 43 that is used to insert spring.Also be respectively equipped with the draw-in groove 44,45 that is located by connecting in the rear and front end of connecting axle, be respectively applied for handle 1 and link to each other with connector 5 cutting ferrules.
Cooperation is referring to Fig. 6, and adjustable ring 6 back segments among the present invention are provided with and are used for the internal thread 61 that is connected with handle, and front end is provided with one and is used for the concave station 62 that is connected with connector, is provided with one and is used for contacting with steel ball the internal conical surface 63 that links to each other between internal thread and concave station.
Cooperation is referring to Fig. 9, and the center-pole 7 among the present invention is provided with three axial notches 71 that are used to embed steel ball, and steel ball 81 can slide in this groove.
Cooperation is referring to Figure 10, handle 1 front portion among the present invention is provided with and is used to the external screw thread 12 that inserts the axial long hole 11 of connecting axle and be used for being threaded with adjustable ring, the handle rear portion is connected with handle cap 10, and is provided with in a plurality of axial long holes 13 that are used to store screwdriver bit are sealed on by handle cap 10.
Referring to Fig. 3, be provided with undergauge step 21 in the rear end of batch bar 2, insert in the groove 43 of connecting axle 4 rear end of buffer spring 9, and front end sleeve is contained on the undergauge step 21 of criticizing bar and with connector 5 and links to each other at interval.This buffer spring 9 plays cushioning effect (the gold coverage of 4mm) stressed when screwdriver bit contacts with screw when using screwdriver, can protect the dismounting damage situations of junction better.
Screw driver with adjustable torque of the present invention is provided with strong magnetic piece, screwdriver bit 3 fast changeables in the front end inside of batch bar 2.
Claims (7)
1. screw driver with adjustable torque, comprise handle, criticize bar and screwdriver bit, it is characterized in that: also comprise connecting axle, connector, adjustable ring, center-pole and steel ball spring torsion mechanism, connecting axle is connected the handle front end, connector is connected the front end of connecting axle and is enclosed within batch rod rear end, adjustable ring is sleeved on handle, on connecting axle and the connector, one end of center-pole inserts in the connecting axle and links to each other with connecting axle, the other end inserts in batch bar and links to each other with batch bar, the steel ball spring torsion mechanism radially passes connecting axle, its the inner contacts with center-pole and links to each other, and the outer end contacts with adjustable ring and links to each other.
2. screw driver with adjustable torque as claimed in claim 1, it is characterized in that: described steel ball spring torsion mechanism comprises three groups of steel ball spring assemblies, every group comprises two steel balls and a spring, two steel balls are separately positioned on the two ends of spring, inner steel ball is pressed on the center-pole, and the outer end steel ball is pressed on the adjustable ring.
3. screw driver with adjustable torque as claimed in claim 1, it is characterized in that: described connecting axle is provided with the axially extending bore that is used to insert center-pole, and being provided with three radial direction through hole that are used to insert the steel ball spring torsion mechanism at its leading portion, three radial direction through hole are arranged on the same circumference and equidistantly distribute.
4. screw driver with adjustable torque as claimed in claim 1, it is characterized in that: described adjustable ring back segment is provided with and is used for the internal thread that is connected with handle, front end is provided with one and is used for the concave station that is connected with connector, is provided with one and is used for contacting with steel ball the internal conical surface that links to each other between internal thread and concave station.
5. screw driver with adjustable torque as claimed in claim 1 is characterized in that: described center-pole is provided with three axial notches that are used to embed steel ball, and steel ball can slide in this groove.
6. screw driver with adjustable torque as claimed in claim 1, it is characterized in that: described handle front portion is provided with and is used to the external screw thread that inserts the axial long hole of connecting axle and be used for being threaded with adjustable ring, the handle rear portion is connected with handle cap, and is provided with in a plurality of axial long holes that are used to store screwdriver bit are sealed on by handle cap.
7. screw driver with adjustable torque as claimed in claim 1, it is characterized in that: also comprise buffer spring, the front end of described connecting axle is provided with the groove that is used to insert spring, the rear end of described batch of bar is provided with the undergauge step, insert in the groove of connecting axle the rear end of buffer spring, and front end sleeve is contained on the undergauge step of criticizing bar and with connector and links to each other at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100397294A CN100548583C (en) | 2008-06-27 | 2008-06-27 | Screw driver with adjustable torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100397294A CN100548583C (en) | 2008-06-27 | 2008-06-27 | Screw driver with adjustable torque |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101301741A true CN101301741A (en) | 2008-11-12 |
| CN100548583C CN100548583C (en) | 2009-10-14 |
Family
ID=40111931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100397294A Expired - Fee Related CN100548583C (en) | 2008-06-27 | 2008-06-27 | Screw driver with adjustable torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100548583C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233552A (en) * | 2010-05-06 | 2011-11-09 | 上海昆杰五金工具有限公司 | Screw driver capable of automatically exchanging head |
| CN102653084A (en) * | 2012-04-23 | 2012-09-05 | 中山市长富五金制品有限公司 | Novel torque wrench |
| CN103817661A (en) * | 2014-01-07 | 2014-05-28 | 常州奥斯迈医疗器械有限公司 | Quick release straight fast connecting handle |
| CN103600326B (en) * | 2013-11-23 | 2015-06-17 | 虞静丽 | Torsion-adjustable screwdriver |
| CN106002215A (en) * | 2016-06-30 | 2016-10-12 | 苏州塞默机械有限公司 | Safety type screw locking mechanism used for joint robot |
| CN106002217A (en) * | 2016-06-30 | 2016-10-12 | 苏州塞默机械有限公司 | Novel screw locking mechanism for joint robot |
| CN106002805A (en) * | 2016-06-20 | 2016-10-12 | 三峡大学 | Semi-automatic variable torque spanner |
-
2008
- 2008-06-27 CN CNB2008100397294A patent/CN100548583C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233552A (en) * | 2010-05-06 | 2011-11-09 | 上海昆杰五金工具有限公司 | Screw driver capable of automatically exchanging head |
| CN102653084A (en) * | 2012-04-23 | 2012-09-05 | 中山市长富五金制品有限公司 | Novel torque wrench |
| CN102653084B (en) * | 2012-04-23 | 2015-08-12 | 中山市长富五金制品有限公司 | A kind of New torque wrench |
| CN103600326B (en) * | 2013-11-23 | 2015-06-17 | 虞静丽 | Torsion-adjustable screwdriver |
| CN103817661A (en) * | 2014-01-07 | 2014-05-28 | 常州奥斯迈医疗器械有限公司 | Quick release straight fast connecting handle |
| CN106002805A (en) * | 2016-06-20 | 2016-10-12 | 三峡大学 | Semi-automatic variable torque spanner |
| CN106002215A (en) * | 2016-06-30 | 2016-10-12 | 苏州塞默机械有限公司 | Safety type screw locking mechanism used for joint robot |
| CN106002217A (en) * | 2016-06-30 | 2016-10-12 | 苏州塞默机械有限公司 | Novel screw locking mechanism for joint robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100548583C (en) | 2009-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Screw driver with adjustable torque Effective date of registration: 20110429 Granted publication date: 20091014 Pledgee: China investment Company limited by guarantee Shanghai branch Pledgor: Shanghai Kunjie Hardware Tools Co., Ltd. Registration number: 2011990000155 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120401 Granted publication date: 20091014 Pledgee: China investment Company limited by guarantee Shanghai branch Pledgor: Shanghai Kunjie Hardware Tools Co., Ltd. Registration number: 2011990000155 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Screw driver with adjustable torque Effective date of registration: 20130627 Granted publication date: 20091014 Pledgee: Pudong Development Bank of Minhang Shanghai branch Pledgor: Shanghai Kunjie Hardware Tools Co., Ltd. Registration number: 2013990000410 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20140627 |
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| EXPY | Termination of patent right or utility model |