CN204271586U - Anti-moving strain clamp - Google Patents
Anti-moving strain clamp Download PDFInfo
- Publication number
- CN204271586U CN204271586U CN201420820548.6U CN201420820548U CN204271586U CN 204271586 U CN204271586 U CN 204271586U CN 201420820548 U CN201420820548 U CN 201420820548U CN 204271586 U CN204271586 U CN 204271586U
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- groove
- semicircular ring
- stopper slot
- bolt
- 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
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a kind of Anti-moving strain clamp, comprise clamp, pressing plate and U-bolt, described U-bolt is made up of with the semicircular ring being connected two supporting legs two supporting legs, be groove in the middle part of described clamp cross section, the bottom land of described groove is provided with through hole, the both sides of often pair of through hole apportion groove longitudinal center, the supporting leg of described U-bolt is connected with nut through after through hole, described pressing plate is positioned at groove and is compressed by the semicircular ring of U-bolt, cable has been installed with between described pressing plate and groove, described pressing plate is also provided with spacing block set, stopper slot is formed between described spacing block set, elasticity extruding plate is provided with in described stopper slot, described semicircular ring to be embedded in stopper slot and to be resiliently compressed sheet extruding, make the semicircular ring of U-bolt when pressing pressing plate, local stress can not be subject to excessive and affect useful life, and by by spacing for the semicircular ring stopper slot being formed by spacing block set, prevent pressing plate owing to being subject to the reverse tensile force effect of cable and the play caused.
Description
Technical field
The utility model relates to a kind of strain clamp, and more particularly, it relates to a kind of while increasing the service life, and can prevent again the strain clamp of strain clamp center platen play.
Background technology
Anti-moving strain clamp is the termination for fixing cord, and bears the gold utensil of wire tension, fixing cord and lightning rod on the insulator string being mainly used in strain insulator, corner, terminal shaft tower.Anti-moving strain clamp has two classes, and first kind Anti-moving strain clamp only bears whole pulling force of wire, lightning conducter and bracing wire, but does not make conductor; Equations of The Second Kind Anti-moving strain clamp except will bearing wire and the whole pulling force of lightning conducter, again as conductor.Anti-moving strain clamp of the present utility model belongs to the wire clamp that the first kind only bears tension force, by U type bolt, pressing plate, wire is pressed in the groove of wire clip body, the frictional force that thrust produces makes wire clamp to bear the pulling force of wire, and the pulling force that wire clamp can bear wire can not lower than 90% of the specified stretching resistance of wire.
But, in prior art, the pressing contact-making surface of U-bolt and pressing plate can exist usually cannot comprehensive engagement, cause the problem of stress in the corner segment set of U-bolt, thus affect the useful life of U-bolt, even serious causes fracture, causes the lax short circuit of high-tension bus-bar, and cause Fire explosion, abnormally dangerous; Strain clamp, mainly provides the tensile force of cable, so U-bolt is after pressing pressing plate, pushes down cable by pressing plate, so the play of pressing plate, is also a large problem.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of Anti-moving strain clamp, by this Anti-moving strain clamp, make the semicircular ring of U-bolt when pressing pressing plate, local stress can not be subject to excessive and affect the problem in useful life.
For achieving the above object, the utility model provides following technical scheme: a kind of Anti-moving strain clamp, comprise clamp, pressing plate and U type bolt, described U type bolt is made up of with the semicircular ring being connected two supporting legs two supporting legs, be groove in the middle part of described clamp cross section, the bottom land of described groove is provided with through hole, the both sides of often pair of through hole apportion groove longitudinal center, the supporting leg of described U type bolt is connected with nut through after through hole, described pressing plate is positioned at groove and is compressed by the semicircular ring of U type bolt, cable has been installed with between described pressing plate and groove, described pressing plate is also provided with spacing block set, stopper slot is formed between described spacing block set, elasticity extruding plate is provided with in described stopper slot, described semicircular ring to be embedded in stopper slot and to be resiliently compressed sheet extruding.
By adopting technique scheme, Anti-moving strain clamp in use, first cable can be put into the groove of clamp, pressing plate is put again on groove, the supporting leg of U-bolt is locked through being connected with nut after through hole, now semicircular ring will be pressed together on pressing plate, then provide pressure force by pressing plate, be compressed by the cable be located in groove; By by spacing for the semicircular ring stopper slot being formed by spacing block set, prevent pressing plate owing to being subject to the reverse tensile force effect of cable and the play caused, and by elasticity extruding plate, make by the semicircular ring of its extruding more stable, avoid the slight play phenomenon caused due to semicircular ring and insufficient contact of stopper slot.
The utility model is set to further: one end of described pressing plate relative U type bolt is provided with the semi-circular boss with semicircular ring mating shapes.
By adopting technique scheme, due to pressing plate is arranged with the semi-circular boss of semicircular ring mating shapes, make semicircular ring when pressing pressing plate, can uniform stressed, avoid and occur local compression and the excessive phenomenon of the local stress that produces, achieve life-span when extending Anti-moving strain clamp and improve the effect of fail safe.
The utility model is set to further: the one side of the relative groove of described pressing plate is provided with the first cannelure, the first annular elastic layer is coated with in described first cannelure, the one side of described groove opposing platen is provided with the second cannelure, be coated with the second cyclic spring layer in described second cannelure, described cable is pressed between the first annular elastic layer and the second cyclic spring layer.
By adopting technique scheme, when cable between pressing plate and groove is by pressing, avoid the direct compressing of cable by pressing plate and groove, and breaking of producing reduces the problem in life-span, but have employed the first annular elastic layer and the second cyclic spring layer by cable pressing, make cable in fixing pressing time stressed more dispersed, make it can the comprehensive pressurized of circumference, and increase coefficient of friction, increase safety in utilization.
Compared with prior art, the utility model has the advantage of: make the semicircular ring of U-bolt when pressing pressing plate, local stress can not be subject to excessive and affect the problem in useful life, and by by spacing for the semicircular ring stopper slot being formed by spacing block set, prevent pressing plate owing to being subject to the reverse tensile force effect of cable and the play caused.
Accompanying drawing explanation
Fig. 1 is the shaft side figure of the utility model Anti-moving strain clamp embodiment;
Fig. 2 is the clamp exploded view of the utility model Anti-moving strain clamp embodiment;
Fig. 3 is the front view of the utility model Anti-moving strain clamp embodiment;
Fig. 4 is the A-A view of Fig. 3;
Fig. 5 is the pressing plate exploded view of the utility model Anti-moving strain clamp embodiment.
In figure, 1, clamp; 11, the second cannelure; 21, semicircular ring; 22, supporting leg; 31, spacing block set; 32, the first cannelure; 33, semi-circular boss; 4, elasticity extruding plate; 5, the first annular elastic layer; 6, the second cyclic spring layer; 7, cable.
Embodiment
With reference to accompanying drawing 1 to 5, the embodiment of the utility model Anti-moving strain clamp is described in further details:
The present embodiment comprises clamp 1, pressing plate and U type bolt, described U type bolt is made up of with the semicircular ring 21 being connected two supporting legs 22 two supporting legs 22, be groove in the middle part of described clamp 1 cross section, the bottom land of described groove is provided with through hole, the both sides of often pair of through hole apportion groove longitudinal center, the supporting leg 22 of described U type bolt is connected with nut through after through hole, described pressing plate is positioned at groove and is compressed by the semicircular ring 21 of U type bolt, cable 7 has been installed with between described pressing plate and groove, described pressing plate is also provided with spacing block set 31, stopper slot is formed between described spacing block set 31, elasticity extruding plate 4 is provided with in described stopper slot, described semicircular ring 21 to be embedded in stopper slot and to be resiliently compressed sheet 4 and extrudes, one end of described pressing plate relative U type bolt is provided with the semi-circular boss 33 with semicircular ring 21 mating shapes.
According to said structure and accompanying drawing, Anti-moving strain clamp in use, first cable 7 can be put into the groove of clamp 1, pressing plate is put again on groove, the supporting leg 22 of U-bolt is locked through being connected with nut after through hole, now semicircular ring 21 will be pressed together on pressing plate, then provide pressure force by pressing plate, be compressed by the cable 7 be located in groove, as can be seen here, there is provided cable 7 tensile force mainly by being provided by pressing between pressing plate and groove, so, while pressing plate provides tensile force to cable 7, cable 7 also certainly will will produce a reaction force to pressing plate, the impact of the reverse tensile force of cable 7 is subject to and the play caused in order to prevent pressing plate, semicircular ring 21 is snapped in the stopper slot formed by spacing block set 31, and compressed by the elasticity extruding plate 4 in stopper slot, further prevent, due to the slight play phenomenon that semicircular ring 21 causes with insufficient contact of stopper slot, make it more stable in use.
Further, the one side of the relative groove of described pressing plate is provided with the first cannelure 32, the first annular elastic layer 5 is coated with in described first cannelure 32, the one side of described groove opposing platen is provided with the second cannelure 11, be coated with the second cyclic spring layer 6 in described second cannelure 11, described cable 7 is pressed between the first annular elastic layer 5 and the second cyclic spring layer 6; So, cable 7 is under the pressing of the first elastic layer and the second elastic layer, and can the be squeezed circumference of cable 7 of the first elastic layer and the second elastic layer all can be wrapped by, thus uniform force is disperseed, make the comprehensive pressurized of its energy circumference, and increase coefficient of friction, increase safety in utilization.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. an Anti-moving strain clamp, comprise clamp, pressing plate and U type bolt, described U type bolt is made up of with the semicircular ring being connected two supporting legs two supporting legs, be groove in the middle part of described clamp cross section, the bottom land of described groove is provided with through hole, the both sides of often pair of through hole apportion groove longitudinal center, the supporting leg of described U type bolt is connected with nut through after through hole, described pressing plate is positioned at groove and is compressed by the semicircular ring of U type bolt, cable has been installed with between described pressing plate and groove, it is characterized in that, described pressing plate is also provided with spacing block set, stopper slot is formed between described spacing block set, elasticity extruding plate is provided with in described stopper slot, described semicircular ring to be embedded in stopper slot and to be resiliently compressed sheet extruding.
2. Anti-moving strain clamp according to claim 1, is characterized in that, one end of described pressing plate relative U type bolt is provided with the semi-circular boss with semicircular ring mating shapes.
3. Anti-moving strain clamp according to claim 1, it is characterized in that, the one side of the relative groove of described pressing plate is provided with the first cannelure, the first annular elastic layer is coated with in described first cannelure, the one side of described groove opposing platen is provided with the second cannelure, be coated with the second cyclic spring layer in described second cannelure, described cable is pressed between the first annular elastic layer and the second cyclic spring layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820548.6U CN204271586U (en) | 2014-12-22 | 2014-12-22 | Anti-moving strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820548.6U CN204271586U (en) | 2014-12-22 | 2014-12-22 | Anti-moving strain clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204271586U true CN204271586U (en) | 2015-04-15 |
Family
ID=52806431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420820548.6U Expired - Fee Related CN204271586U (en) | 2014-12-22 | 2014-12-22 | Anti-moving strain clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204271586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748420A (en) * | 2017-11-13 | 2018-03-02 | 河南宏骏通信工程有限公司 | A kind of communications optical cable strain clamp |
-
2014
- 2014-12-22 CN CN201420820548.6U patent/CN204271586U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748420A (en) * | 2017-11-13 | 2018-03-02 | 河南宏骏通信工程有限公司 | A kind of communications optical cable strain clamp |
| CN107748420B (en) * | 2017-11-13 | 2020-04-17 | 重庆特发信息光缆有限公司 | Strain clamp for communication optical cable |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20201222 |