CN221278206U - Anti-falling cotter pin for power transmission line - Google Patents
Anti-falling cotter pin for power transmission line Download PDFInfo
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- CN221278206U CN221278206U CN202323470314.1U CN202323470314U CN221278206U CN 221278206 U CN221278206 U CN 221278206U CN 202323470314 U CN202323470314 U CN 202323470314U CN 221278206 U CN221278206 U CN 221278206U
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- pin body
- transmission shaft
- screw
- transmission line
- guide
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 86
- 230000000670 limiting effect Effects 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides an anti-drop cotter pin of transmission line, includes the round pin body, transmission shaft and screw rod, and the round pin body runs through and is provided with the passageway that can supply the transmission shaft to insert, and transmission shaft one end is provided with the toper piece, and the other end of transmission shaft is provided with the screw, and screw threaded connection, screw rod rotation drive transmission shaft slide along the passageway, and the toper piece expands the round pin body and struts after getting into the passageway; a limiting structure is arranged between the transmission shaft and the pin body, and the limiting structure is used for enabling the transmission shaft to do linear motion relative to the axial direction of the pin body and limiting the rotation between the transmission shaft and the pin body; the locking structure is arranged between the screw and the pin body, the screw and the pin body are locked and fixed by the locking structure, the screw is prevented from rotating by the locking structure, the phenomenon that the cotter pin is loosened can be effectively prevented by the limiting structure and the locking structure, and the safety of the power transmission line is effectively improved.
Description
Technical Field
The utility model relates to the technical field of power transmission line accessories, in particular to an anti-falling split pin for a power transmission line.
Background
The electrical or other important connection locations of the transmission line are each made by cotter pins that secure and connect two or more components. The cotter pin used on the current transmission line has simple structure and lower strength, and is easy to break or crack in the process of being collided by bending or external force, so that the cotter pin falls off, and the safety of the transmission line is seriously influenced.
Disclosure of Invention
In view of the above, it is necessary to provide a split pin for preventing a power transmission line from falling off, which improves the safety of the power transmission line.
The utility model provides an anti-drop cotter pin of transmission line, includes the round pin body, transmission shaft and screw rod, and the round pin body runs through and is provided with the passageway that can supply the transmission shaft to insert, and transmission shaft one end is provided with the toper piece, and the other end of transmission shaft is provided with the screw, and screw threaded connection, screw rod rotation drive transmission shaft slide along the passageway, and the toper piece expands the round pin body and struts after getting into the passageway; a limiting structure is arranged between the transmission shaft and the pin body, and the limiting structure enables the transmission shaft to do linear motion relative to the axial direction of the pin body; a locking structure is arranged between the screw and the pin body, and the screw and the pin body are locked and fixed by the locking structure and prevented from rotating by the locking structure.
Preferably, the limit structure comprises a guide groove and a guide strip which are matched, the guide groove is axially arranged on the inner wall of the channel of the pin body along the pin body, and the guide strip is axially arranged on the outer wall of the transmission shaft along the transmission shaft.
Preferably, the limit structure comprises a guide groove and a guide strip which are matched, the guide groove is axially arranged on the outer wall of the transmission shaft along the transmission shaft, and the guide strip is axially arranged on the inner wall of the channel of the pin body along the pin body.
Preferably, the number of the guide strips is four, and the four guide strips are distributed in a cross shape; the number of the guide grooves is four, and the four guide grooves are distributed in a cross shape.
Preferably, the end of the conical block is provided with an auxiliary part for being in fit connection with a wrench or screwdriver to enable the transmission shaft to rotate relative to the screw.
Preferably, a plurality of notches are formed at one end of the pin body facing the conical block, the notches are axially arranged along the pin body, and an expansion split is formed between two adjacent notches.
Preferably, one end of the screw is provided with a nut which abuts against the end of the pin body.
Preferably, the locking structure comprises a plug shaft and a jack, the pin body is provided with a round table matched with the nut, the nut is provided with the plug shaft towards one surface of the round table, the round table is provided with the jack, and the plug shaft is inserted into the jack.
In the anti-falling split pin for the power transmission line, the pin body is inserted into a designated hole site on the power transmission line, and the screw and the transmission shaft are inserted from the front end and the rear end of a channel of the pin body respectively. The screw rod is in threaded connection with a screw hole of the transmission shaft, the screw rod rotates and drives the transmission shaft on the screw hole to linearly move towards the front end along the channel under the effect of the limiting structure, the transmission shaft drives the conical block to move towards the front end together, and the conical block expands the front end of the channel of the pin body. The screw rod rotates and moves to the rear end along the channel, and finally the screw rod and the pin body are locked and fixed through the locking structure, and the screw rod and the transmission shaft are locked and cannot rotate. According to the utility model, the pin body and the screw are driven by the transmission shaft, so that the strength of the cotter pin is increased, the pin body and the transmission shaft are limited to rotate by the limiting structure, and the pin body and the screw are limited to rotate by the locking structure, so that the cotter pin can be effectively prevented from loosening, and the safety of a power transmission line is effectively improved.
Drawings
Fig. 1 is a schematic structural view of an anti-drop cotter pin for a power transmission line.
Fig. 2 is an exploded view of a power transmission line anti-drop cotter pin.
In the figure: pin 1, channel 11, guide slot 12, notch 13, drive shaft 2, screw hole 21, guide bar, screw 3, conical block 4, auxiliary part 41, nut 5, plug shaft 51, round table 6, jack 61.
Detailed Description
Referring to fig. 1 to 2, an anti-falling cotter pin for a power transmission line comprises a pin body 1, a transmission shaft 2 and a screw 3, wherein the pin body 1 is provided with a channel 11 for the transmission shaft 2 to insert in a penetrating manner, one end of the transmission shaft 2 is integrally formed with a conical block 4, the other end of the transmission shaft 2 is provided with a screw hole 21, the screw hole 21 is in threaded connection with the screw 3, the screw 3 rotates to drive the transmission shaft 2 to slide along the channel 11, and the conical block 4 expands and expands the pin body 1 after entering the channel 11; a limiting structure is arranged between the transmission shaft 2 and the pin body 1, and the limiting structure enables the transmission shaft 2 to do linear motion relative to the pin body 1 in the axial direction; a locking structure is arranged between the screw rod 3 and the pin body 1, and the screw rod 3 and the pin body 1 are locked and fixed by the locking structure and the screw rod 3 is prevented from rotating.
The limiting structure comprises guide grooves 12 and guide strips 22 which are matched, the four guide grooves 12 are arranged on the inner wall of a channel 11 of the pin body 1 along the axial direction of the pin body 1, the four guide strips 22 are arranged on the outer wall of the transmission shaft 2 along the axial direction of the transmission shaft 2 in a cross shape, and the guide strips 22 and the transmission shaft 2 are integrally formed. Under the limiting action of the guide strip 22 and the guide groove 12, the rotary motion of the screw 3 is converted into linear motion, so that the transmission shaft 2 and the pin shaft move relatively linearly. In other embodiments, the guide groove 12 may be provided on the outer wall of the drive shaft 2 along the axial direction of the drive shaft 2, and the guide bar 22 is provided on the inner wall of the channel 11 of the pin 1 along the axial direction of the pin 1.
In order to facilitate the rotation of the screw 3, the conical block 4 is driven to rotate relatively by an auxiliary tool. The end of the conical block 4 is provided with an auxiliary part 41, and the auxiliary part 41 is used for being matched and connected with auxiliary tools such as a spanner or a screwdriver so as to enable the transmission shaft 2 to rotate relative to the screw 3. The auxiliary portion 41 may be a hole or a protrusion, the hole may be a hexagonal hole or a cross hole, and the protrusion may be a hexagonal protrusion for fitting an auxiliary tool.
The end of the pin body 1 facing the conical block 4 is provided with a plurality of notches 13, the notches 13 are axially arranged along the notches, and an expansion split is formed between two adjacent notches 13. The external diameter size of the front end of the conical block 4 is symmetrical with the external diameter size of the pin body 1, the conical block 4 expands and spreads the expansion split of the pin body 1 after entering the channel 11, and the design of the notch 13 avoids the fracture or crack of the pin body 1 caused by the expansion of the conical block 4, thereby leading to the shedding of the cotter pin.
The locking structure comprises a plug shaft 51 and an inserting hole 61, a nut 5 is arranged at one end of a screw 3, a round table 6 matched with the nut 5 is arranged on the pin body 1, the plug shaft 51 is arranged on one face of the nut 5, which faces the round table 6, the inserting hole 61 is arranged on the round table 6, the nut 5 abuts against the end portion of the pin body 1, the plug shaft 51 is inserted into the inserting hole 61, the plug shaft 51 is fixed through a screw, and at the moment, the nut 5 is locked so that the screw 3 cannot rotate.
In the anti-falling split pin for the power transmission line, the pin body 1 is inserted into a designated hole site on the power transmission line, and the screw 3 and the transmission shaft 2 are respectively inserted from the front end and the rear end of the channel 11 of the pin body 1. The screw rod 3 is in threaded connection with the screw hole 21 of the transmission shaft 2, the screw rod 3 rotates and drives the transmission shaft 2 on the screw hole 21 to linearly move towards the front end along the channel 11 under the effect of the limiting structure, the transmission shaft 2 drives the conical block 4 to move towards the front end together, and the conical block 4 expands the front end of the channel 11 of the pin body 1. The screw 3 rotates and moves to the rear end along the channel 11, and finally the screw 3 and the pin body 1 are locked and fixed through the locking structure, and the screw 3 and the transmission shaft 2 are locked and cannot rotate. According to the utility model, the pin body 1 and the screw 3 are driven by the transmission shaft 2, so that the strength of the cotter pin is increased, the pin body 1 and the transmission shaft 2 are limited to rotate by the limiting structure, the pin body 1 and the screw 3 are limited to rotate by the locking structure, the cotter pin can be effectively prevented from loosening, and the safety of a transmission line is effectively improved.
Claims (8)
1. The utility model provides a transmission line anti-drop cotter which characterized in that: the pin body is provided with a channel for the transmission shaft to insert in a penetrating manner, one end of the transmission shaft is provided with a conical block, the other end of the transmission shaft is provided with a screw hole, the screw hole is in threaded connection with the screw rod, the screw rod rotates to drive the transmission shaft to slide along the channel, and the conical block expands and expands the pin body after entering the channel; a limiting structure is arranged between the transmission shaft and the pin body, and the limiting structure enables the transmission shaft to do linear motion relative to the axial direction of the pin body; a locking structure is arranged between the screw and the pin body, and the screw and the pin body are locked and fixed by the locking structure and prevented from rotating by the locking structure.
2. The transmission line anti-drop cotter according to claim 1, characterized in that: the limit structure comprises a guide groove and a guide strip which are matched with each other, the guide groove is axially arranged on the inner wall of the channel of the pin body along the pin body, and the guide strip is axially arranged on the outer wall of the transmission shaft along the transmission shaft.
3. The transmission line anti-drop cotter according to claim 1, characterized in that: the limit structure comprises a guide groove and a guide strip which are matched with each other, the guide groove is axially arranged on the outer wall of the transmission shaft along the transmission shaft, and the guide strip is axially arranged on the inner wall of the channel of the pin body along the pin body.
4. A transmission line anti-drop cotter according to any one of claims 1 to 3, characterized in that: the number of the guide strips is four, and the four guide strips are distributed in a cross shape; the number of the guide grooves is four, and the four guide grooves are distributed in a cross shape.
5. The transmission line anti-drop cotter according to claim 1, characterized in that: the end of the conical block is provided with an auxiliary part, and the auxiliary part is used for being matched and connected with a spanner or a screwdriver so as to enable the transmission shaft to rotate relative to the screw.
6. The transmission line anti-drop cotter according to claim 1, characterized in that: the pin body is provided with a plurality of notches towards one end of the conical block, the notches are axially arranged along the pin body, and an expansion split is formed between two adjacent notches.
7. The transmission line anti-drop cotter according to claim 1, characterized in that: one end of the screw rod is provided with a screw cap which is propped against the end part of the pin body.
8. The transmission line anti-drop cotter according to claim 7, characterized in that: the locking structure comprises a plug shaft and a jack, the pin body is provided with a round platform matched with the nut, the nut is provided with the plug shaft towards one surface of the round platform, the round platform is provided with the jack, and the plug shaft is inserted in the jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323470314.1U CN221278206U (en) | 2023-12-20 | 2023-12-20 | Anti-falling cotter pin for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323470314.1U CN221278206U (en) | 2023-12-20 | 2023-12-20 | Anti-falling cotter pin for power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221278206U true CN221278206U (en) | 2024-07-05 |
Family
ID=91693450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323470314.1U Active CN221278206U (en) | 2023-12-20 | 2023-12-20 | Anti-falling cotter pin for power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221278206U (en) |
-
2023
- 2023-12-20 CN CN202323470314.1U patent/CN221278206U/en active Active
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