CN201769150U - Torque wrench - Google Patents
Torque wrench Download PDFInfo
- Publication number
- CN201769150U CN201769150U CN2010201597727U CN201020159772U CN201769150U CN 201769150 U CN201769150 U CN 201769150U CN 2010201597727 U CN2010201597727 U CN 2010201597727U CN 201020159772 U CN201020159772 U CN 201020159772U CN 201769150 U CN201769150 U CN 201769150U
- Authority
- CN
- China
- Prior art keywords
- extension bar
- housing
- lever
- push rod
- shifting block
- 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 - Fee Related
Links
Abstract
The utility model discloses a torque wrench, which belongs to a device capable of measuring torque value of a wrench and comprises a casing. The torque wrench is characterized in that a lever, a connecting rod, a shifting block, an ejector rod and a spring are sequentially mounted inside the casing and along the central axis of the casing, the connecting rod is pivotally mounted inside the casing, one end of the connecting rod is connected with the lever in a linkage manner, a first shifting groove with a trapezoidal section is arranged at the other end of the connecting rod, a second shifting groove with a trapezoidal section is also arranged at one end of the ejector rod which is arranged corresponding to the connecting rod, a cavity is formed by the first shifting groove and the second shifting groove which are arranged correspondingly, the square shifting block is arranged inside the cavity, and the spring is mounted on the ejector rod. The torque wrench has the advantages of stable structure, high accuracy, bidirectional measurement and the like.
Description
Technical field:
The utility model relates to a kind of torque spanner, belongs to a kind of torque spanner that measures screw and nut locking torque size.
Background technology:
Torque spanner mainly is a kind of manual metering outfit that can show the torque value size of spanner, mainly contain two kinds of torque spanneres of indicating type and presetting system, wherein, presetting system is by applying the certain torsion of spanner, reach the torque value of setting when this torsion, the sound and feel promptly take place, and finish the torque value that presets simultaneously.It adopts lever mechanics structural principle, and promptly the lever that is provided with by the force side contacts with the jacking block that elastic mechanism is held with being arranged at the pipe shaft other end, and the torque value size of spanner is set by the spring pressure size.But often since in the sleeve pipe lever and jacking block difference to some extent is set, and the loose contact of lever and jacking block, cause the application of force of spanner can't be identical with the stressed of jacking block, said structure causes the insensitive and inaccurate of measurement result, in addition, existing single head torque spanner can only be realized unidirectional measurement, and this tends to cause many inconvenience in actual use.
The utility model of making on the basis of the above.
The utility model content:
The purpose of this utility model is to provide a kind of presetting system novel structure, quantification stability, torque spanner that accuracy is good.
The technical scheme that the utility model is taked is as follows: a kind of torque spanner, comprise housing, it is characterized in that: the central axis along housing in housing is equipped with lever successively, extension bar, shifting block, push rod and spring, wherein, extension bar is installed in the housing, extension bar one end and lever are connected, the extension bar other end is provided with the cross section and is the first trapezoidal allocating slot, also be provided with the cross section with push rod one end of the corresponding setting of extension bar and be the second trapezoidal allocating slot, be provided with corresponding with second allocating slot of first allocating slot forms a cavity, the shifting block that is square is arranged in this cavity, and spring is installed on the push rod.
Further be provided with as follows:
Housing is provided with a dismountable cover plate.
Lever pivot is loaded on the front end of housing, and the last end of the head side of the being provided with tenon of lever is used for socket sleeve or screwing element, and extension bar is installed on the extension bar seat in the housing by jaw pin, and the other end of extension bar one end and lever is connected by connecting pin.
Between spring installation and push rod and the screw plug, regulating sleeve links to each other with screw plug, set screw is threaded with regulating sleeve, and by resilient key and adjusting fixed by nut, main scale mark is arranged on the regulating sleeve, the scale division line is located on the set screw, and the position of corresponding main scale mark and scale division line offers respectively and shows the hole on housing.
When shifting block is in static (initially) state, the two ends of shifting block contact with the bottom land of two trapezoidal allocating slots, rotate clockwise or counterclockwise and work as shifting block, and shifting block turns over certain distance under the effect of lever, two diagonal angles of shifting block contact with the bottom land of two trapezoidal allocating slots respectively
The beneficial effects of the utility model:
1, adopts the interlock design of lever, extension bar, jacking block and push rod, cancelled fixedly pivot pin of original extension bar, make structure simple and stable more;
2, by improve the stressed of lever and with the setting of elastic mechanism, under original state and duty, changement and elastic mechanism in the housing are on the central axis all the time, simultaneously, setting by trapezoidal allocating slot and shifting block, effectively guaranteed stability of structure, and the accuracy that applies power and measured value;
3, the setting of changement can realize bidirectional measuring, uses convenient.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings:
Fig. 1 is a part sectioned view of the present utility model;
Fig. 2 is a longitudinal sectional drawing of the present utility model.
The specific embodiment:
As Fig. 1, shown in Figure 2, torque spanner of the present utility model, comprise housing 1, the housing 1 preferred Al-alloy casing that adopts, housing 1 is provided with a cover plate 11, cover plate 11 is detachable, use during with convenient for maintaining, central axis along housing 1 in housing 1 is equipped with reversing arrangement 2 successively, elastic mechanism 3, and governor motion 4, wherein, changement 2 comprises the lever 21 that is installed in housing 1 front end, the last end of the head side of the being provided with tenon of lever 21 is used for socket sleeve or screwing element, extension bar 22 is installed on the extension bar seat 23 in the housing 1 by jaw pin 24, the other end of extension bar 22 1 ends and lever 21 is connected by connecting pin 25, the other end of extension bar 22 is provided with the cross section and is the first trapezoidal allocating slot 26, also be provided with the cross section with push rod 27 1 ends of extension bar 22 corresponding settings and be the second trapezoidal allocating slot 28, first allocating slot 26 forms a cavity with second allocating slot, 28 corresponding settings, the shifting block 29 that is square is arranged in this cavity, by the two sides trapezoidal allocating slot is set, the bottom land and the shifting block of trapezoidal allocating slot are suitable, like this, when shifting block is in static (initially) state, the two ends of shifting block contact with the bottom land of two trapezoidal allocating slots, and when the effect of shifting block at lever, rotate clockwise or counterclockwise, shifting block turns over certain distance under the effect of lever, and two diagonal angles of shifting block contact with the bottom land of two trapezoidal allocating slots respectively, like this, on the one hand, can effectively keep the stability of entire mechanism, and when measuring accurately; On the other hand, by clockwise or rotate counterclockwise, can realize two-way metering.Elastic mechanism 3 mainly comprises the screw plug 31 that is installed in the housing 1, spring 32 is installed between push rod 27 and the screw plug 31, governor motion 4 is installed on the tail end of housing 1, comprise the regulating sleeve 41 that links to each other with screw plug 31, set screw 42 is threaded with regulating sleeve 41, and fixing by resilient key 43 and adjusting nut 44, and main scale mark is arranged on the regulating sleeve 41, the scale division line is located on the set screw 42, and the position of corresponding main scale mark and scale division line offers respectively and shows hole 10 on housing 1.
This practical operation principle is as follows: presetting torque value not during work done, each parts (lever in the housing, extension bar, shifting block, push rod etc.) be connected to each other all and be horizontal, promptly all be on the central axis of housing 1, when lever side's tenon at certain point (head as lever 21 is socketed on sleeve or the screwing element) fixedly the time, in the reinforcing of spanner afterbody spanner is rotated, when applying torsion when presetting torque value, lever is because the active force that is rotated is a torsion, rotate, and by connecting pin drive extension bar, extension bar turns to position shown in Figure 1 and stirs the shifting block rotation from horizontal level, under the effect of shifting block, push rod is promoted certain distance and compresses spring by level, finishes the required torque value precise information that presets, preset torque value and read, thereby finish one-shot measurement by the main scale mark and the scale division line of regulating sleeve and set screw.
The utility model is realized bidirectional measuring, and when the torsion direction that applies was opposite, lever and shifting block can rotate round about, thereby finished measurement, and its operation principle as previously mentioned.
Claims (3)
1. torque spanner, comprise housing, it is characterized in that: the central axis along housing in housing is equipped with lever, extension bar, shifting block, push rod and spring successively, wherein, extension bar is installed in the housing, extension bar one end and lever are connected, the extension bar other end is provided with the cross section and is the first trapezoidal allocating slot, also be provided with the cross section with push rod one end of the corresponding setting of extension bar and be the second trapezoidal allocating slot, be provided with corresponding with second allocating slot of first allocating slot forms a cavity, the shifting block that is square is arranged in this cavity, and spring is installed on the push rod.
2. a kind of torque spanner according to claim 1, it is characterized in that: lever pivot is loaded on the front end of housing, head one end of lever is used for socket sleeve or screwing element, extension bar is installed on the extension bar seat in the housing by jaw pin, and the other end of extension bar one end and lever is connected by connecting pin.
3. a kind of torque spanner according to claim 1, it is characterized in that: between spring installation and push rod and the screw plug, regulating sleeve links to each other with screw plug, set screw is threaded with regulating sleeve, and by resilient key and adjusting fixed by nut, main scale mark is arranged on the regulating sleeve, and the scale division line is located on the set screw, and the position of corresponding main scale mark and scale division line offers respectively and shows the hole on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201597727U CN201769150U (en) | 2010-04-10 | 2010-04-10 | Torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201597727U CN201769150U (en) | 2010-04-10 | 2010-04-10 | Torque wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201769150U true CN201769150U (en) | 2011-03-23 |
Family
ID=43748984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201597727U Expired - Fee Related CN201769150U (en) | 2010-04-10 | 2010-04-10 | Torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201769150U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909670A (en) * | 2011-08-03 | 2013-02-06 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Torque tool |
| CN102909684A (en) * | 2011-08-03 | 2013-02-06 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Torque tool |
| CN108453658A (en) * | 2017-02-20 | 2018-08-28 | 胡厚飞 | Torsion indicating wrench |
-
2010
- 2010-04-10 CN CN2010201597727U patent/CN201769150U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909670A (en) * | 2011-08-03 | 2013-02-06 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Torque tool |
| CN102909684A (en) * | 2011-08-03 | 2013-02-06 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Torque tool |
| CN102909684B (en) * | 2011-08-03 | 2014-12-17 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Torque tool |
| CN108453658A (en) * | 2017-02-20 | 2018-08-28 | 胡厚飞 | Torsion indicating wrench |
| CN108453658B (en) * | 2017-02-20 | 2019-11-05 | 胡厚飞 | Torsion indicating wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110323 Termination date: 20180410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |