CN203045599U - Fixed value torque screwdriver - Google Patents
Fixed value torque screwdriver Download PDFInfo
- Publication number
- CN203045599U CN203045599U CN 201220595556 CN201220595556U CN203045599U CN 203045599 U CN203045599 U CN 203045599U CN 201220595556 CN201220595556 CN 201220595556 CN 201220595556 U CN201220595556 U CN 201220595556U CN 203045599 U CN203045599 U CN 203045599U
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- Prior art keywords
- face tooth
- screwdriver
- torsion
- handle
- fixed end
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- Expired - Lifetime
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Abstract
The utility model discloses a fixed value torque screwdriver, which comprises a handle and a screwdriver rod, wherein a slip mechanism is arranged in a cavity of the handle and comprises a pair of end face teeth and a spring; the end face teeth are a movable end face tooth and a fixed end face tooth respectively; the fixed end face tooth is fixedly connected with the handle; and the movable end face tooth is separated and slipped from the fixed end face tooth when a certain torque is exceeded, and is newly engaged with the fixed end face tooth under the action of the spring to realize transmission. According to the fixed value torque screwdriver, the torque value of the screwdriver is non-adjustable. During use, when the rotary torque exceeds a set torque value, the screwdriver slips through the internal mechanism, so that the situation that a screw or a screwdriver head is damaged due to over-large torque is avoided.
Description
Technical field
The utility model discloses a kind of definite value torsion screwdriver, divides by International Patent Classification (IPC) (IPC) to belong to screwdriver manufacturing technology field, especially relates to a kind of screwdriver of fixedly torsion.
Background technology
Screwdriver is to twist screw to force its instrument in place, and during use, it is tight that clockwise direction rotates to be embedding, and counterclockwise rotation is then for easing out.Common screwdriver generally is to be connected to one by screwdriver rod and handle, the head of knife bar can be a word, cross, rice word, T type (blossom type) or H type (hexagonal) etc., the fixed structure of screwdriver has determined its torsion, yet, in the application of different field such as glasses, mobile phone, computer, machinery, furniture, the torsion maximum of its permission is inevitable inequality, and the situation of damaging screw or driver bit because torsion is excessive happens occasionally.In accurate field, as assembling or maintenance glasses, during especially high-grade glasses, if the application of force is bigger, must make the screw embedding extremely in pilot hole, need with other accessories taking-up screws, it is time-consuming to require great effort.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of rational in infrastructure, safe and reliable definite value torsion screwdriver, skid by its inner mechanism, thereby the situation of avoiding crossing macrolesion screw or driver bit because of torsion takes place.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of definite value torsion screwdriver, comprise handle and screwdriver rod, the inner chamber of handle is provided with the mechanism of skidding, this mechanism of skidding comprises a pair of end face tooth and spring, described end face tooth is respectively moved end face tooth and fixed end face tooth, wherein fixed end face tooth and handle are fixedly linked, and moved end face tooth separates with fixed end face tooth when surpassing certain torsion and skids and mesh the realization transmission again with fixed end face tooth under spring action.
Further; the described mechanism of skidding also comprises six square bars; described screwdriver rod and six square bars are fixedly linked; spring and end face tooth are enclosed within on six square bars successively; the front port of intracavity of handle is provided with torsion and regulates cap; described spring places moved end face tooth and torsion to regulate between the cap and with spring force and acts on the face tooth of moved end, thereby moved end face tooth is engageable with fixed end face tooth or separate and realized torque protection.
Further, there is the hexagonal hole that is equal to six square bar sizes face tooth inside, described moved end and is placed on six square bars, this moved end face tooth can drive six square bars and together rotate and can axially move freely, six square bar front ends are little axle, this little axle passes fixed end face tooth centre bore and can not travelling backwards by the jump ring chucking, and fixed end face tooth opposite side is located by the shaft shoulder that six square bars form.
Further, described handle rear end is by the shutoff of tail cap and make the handle smooth comfortable.
Further, described torsion is regulated cap and placed the handle front end by thread, and the decrement of energy left rotation and right rotation regulating spring, and is after configuring decrement that its glue is dead.
The utility model definite value torsion screwdriver, its torque value is non-adjustable, the application target (as: being used for glasses, mobile phone, computer, machinery, furniture etc.) according to screwdriver before dispatching from the factory is made as different definite values with torsion.When rotary torsion surpassed the torque value of setting, screwdriver skidded by the mechanism of inside in the use, thereby the situation of avoiding crossing macrolesion screw or driver bit because of torsion takes place.
Description of drawings
Fig. 1 is the utility model overall schematic.
Fig. 2 is the utility model exploded view.
Fig. 3 is the utility model structural scheme of mechanism that skids.
Fig. 4 is the utility model end face tooth mesh schematic representation.
Fig. 5 is that the utility model end face tooth separates schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: see also Fig. 1 to Fig. 3, a kind of definite value torsion screwdriver, comprise handle 1 and screwdriver rod 2, the inner chamber of handle 1 is provided with the mechanism 3 of skidding, this mechanism 3 of skidding comprises a pair of end face tooth and spring 33, described end face tooth is respectively moved end face tooth 31 and fixed end face tooth 32, and wherein fixed end face tooth 32 is fixedly linked with handle 1, and moved end face tooth 31 separates with fixed end face tooth 32 when surpassing certain torsion and skids and mesh the realization transmission again with fixed end face tooth under spring 33 effects.The mechanism 3 of skidding also comprises six square bars 34; described screwdriver rod 2 and six square bars 34 are fixedly linked; spring 33 and both ends of the surface tooth are enclosed within on six square bars 34 successively; the front port of intracavity of handle is provided with torsion and regulates cap 4; described spring 33 places moved end face tooth 31 and torsion to regulate between the cap 4 and with spring force and acts on the face tooth of moved end, thereby moved end face tooth is engageable with fixed end face tooth or separate and realized torque protection.There is the hexagonal hole that is equal to six square bars, 34 sizes face tooth 31 inside, moved end and is placed on six square bars, this moved end face tooth can drive six square bars and together rotate and can axially move freely, six square bar front ends are little axle, this little axle passes fixed end face tooth 32 centre bores and can not travelling backwards by jump ring 35 chuckings, and fixed end face tooth opposite side is located by the shaft shoulder that six square bars form.
The utility model screwdriver rod 2 and six square bars 34 are for fixedlying connected, and fixed end face tooth (end face tooth B) rear portion is designed for square, are installed in the cubic hole of the equal size in the inner appropriate location of handle.There is the hexagonal hole that is equal to six square bar sizes moved end face tooth (end face tooth A) inside and is placed on six square bars, moved end face tooth (end face tooth A) can drive six square bars and together rotate, and can axially move freely, spring places moved end face tooth (end face tooth A) and torsion to regulate between the cap and with spring force and acts on the moved end face tooth (end face tooth A), as 2, Fig. 3, Fig. 4 or Fig. 5, torsion is regulated cap 4 and is placed handle 1 front end by thread, and the decrement of energy left rotation and right rotation regulating spring, after configuring decrement that its glue is dead, the little axle of six square bar front ends passes fixed end face tooth (end face tooth B) and tightened by jump ring can not travelling backwards.Handle 1 rear end is by 5 shutoff of tail cap and make the handle smooth comfortable.
The utility model operation principle:
As Fig. 4, shown in Figure 5, spring is oppressed moved end face tooth (end face tooth A) on fixed end face tooth (end face tooth B), makes both be in meshing state, and produces the resistance torsion with respect to fixed end face tooth (end face tooth B).The size of resistance torsion is determined by the elastic force of spring, and the elastic force of spring can be obtained by calculating and experiment.The torsion of handle passes through end face tooth B, A to the screwdriver rod transmission during use, when screw is locked, as long as the torsion of fixed end face tooth (end face tooth B) is greater than the resistance torsion of moved end face tooth (end face tooth A), moved end face tooth (end face tooth A) will outwards move the compression spring along the inclined-plane of tooth, as end face tooth A, when B separates fully, skid, screwdriver rod stops operating.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (5)
1. definite value torsion screwdriver, it is characterized in that: comprise handle and screwdriver rod, the inner chamber of handle is provided with the mechanism of skidding, this mechanism of skidding comprises a pair of end face tooth and spring, described end face tooth is respectively moved end face tooth and fixed end face tooth, wherein fixed end face tooth and handle are fixedly linked, and moved end face tooth separates with fixed end face tooth when surpassing certain torsion and skids and mesh the realization transmission again with fixed end face tooth under spring action.
2. a kind of definite value torsion screwdriver according to claim 1; it is characterized in that: the described mechanism of skidding also comprises six square bars; described screwdriver rod and six square bars are fixedly linked; spring and end face tooth are enclosed within on six square bars successively; the front port of intracavity of handle is provided with torsion and regulates cap; described spring places moved end face tooth and torsion to regulate between the cap and with spring force and acts on the face tooth of moved end, thereby moved end face tooth is engageable with fixed end face tooth or separate and realized torque protection.
3. a kind of definite value torsion screwdriver according to claim 2, it is characterized in that: there is the hexagonal hole that is equal to six square bar sizes face tooth inside, described moved end and is placed on six square bars, this moved end face tooth can drive six square bars and together rotate and can axially move freely, six square bar front ends are little axle, this little axle passes fixed end face tooth centre bore and can not travelling backwards by the jump ring chucking, and fixed end face tooth opposite side is located by the shaft shoulder that six square bars form.
4. according to the described definite value torsion of one of claim 1 to 3 screwdriver, it is characterized in that: described handle rear end is by the shutoff of tail cap.
5. according to claim 2 or 3 described definite value torsion screwdrivers, it is characterized in that: described torsion is regulated cap and placed the handle front end by thread, and the decrement of energy left rotation and right rotation regulating spring, and is after configuring decrement that its glue is dead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595556 CN203045599U (en) | 2012-11-13 | 2012-11-13 | Fixed value torque screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595556 CN203045599U (en) | 2012-11-13 | 2012-11-13 | Fixed value torque screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203045599U true CN203045599U (en) | 2013-07-10 |
Family
ID=48728595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595556 Expired - Lifetime CN203045599U (en) | 2012-11-13 | 2012-11-13 | Fixed value torque screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203045599U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710817A (en) * | 2016-04-27 | 2016-06-29 | 厦门南旗佰特精密工具制造有限公司 | Precise electric screwdriver |
| CN105773505A (en) * | 2016-04-27 | 2016-07-20 | 厦门南旗佰特精密工具制造有限公司 | Screwdriver torsion adjusting device |
| CN106113079A (en) * | 2016-07-01 | 2016-11-16 | 江苏捷帝机器人股份有限公司 | A kind of mechanical joint of flexible catching robot |
| CN106737326A (en) * | 2016-11-11 | 2017-05-31 | 苏州创必成电子科技有限公司 | Monkey wrench with torsion control |
| CN110757389A (en) * | 2019-11-07 | 2020-02-07 | 西南交通大学 | Spiral power spring energy storage screwdriver |
-
2012
- 2012-11-13 CN CN 201220595556 patent/CN203045599U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710817A (en) * | 2016-04-27 | 2016-06-29 | 厦门南旗佰特精密工具制造有限公司 | Precise electric screwdriver |
| CN105773505A (en) * | 2016-04-27 | 2016-07-20 | 厦门南旗佰特精密工具制造有限公司 | Screwdriver torsion adjusting device |
| CN106113079A (en) * | 2016-07-01 | 2016-11-16 | 江苏捷帝机器人股份有限公司 | A kind of mechanical joint of flexible catching robot |
| CN106113079B (en) * | 2016-07-01 | 2018-09-25 | 江苏捷帝机器人股份有限公司 | A kind of mechanical joint of flexible crawl manipulator |
| CN106737326A (en) * | 2016-11-11 | 2017-05-31 | 苏州创必成电子科技有限公司 | Monkey wrench with torsion control |
| CN110757389A (en) * | 2019-11-07 | 2020-02-07 | 西南交通大学 | Spiral power spring energy storage screwdriver |
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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: 20130710 |
|
| CX01 | Expiry of patent term |