CN210142874U - Self-locking device for pulley - Google Patents
Self-locking device for pulley Download PDFInfo
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- CN210142874U CN210142874U CN201921111712.5U CN201921111712U CN210142874U CN 210142874 U CN210142874 U CN 210142874U CN 201921111712 U CN201921111712 U CN 201921111712U CN 210142874 U CN210142874 U CN 210142874U
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- frame body
- compression roller
- upper frame
- block
- locking
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Abstract
The utility model discloses a coaster self-locking ware belongs to the support that the wire laid and send the device. The bracket comprises an upper bracket body and a lower bracket body, and a grooved pulley is arranged on the lower bracket body; a press roller is rotatably arranged on the upper frame body, and a self-locking structure is arranged between the other end of the press roller and the upper frame body; during construction, the compression roller and the grooved pulley are arranged in parallel, the lead penetrates through the grooved pulley, and the compression roller is pressed on the lead; the self-locking structure comprises a stop block fixed at the right end of the compression roller, a pair of support plates are fixed at the right end of the upper frame body, and a locking block is hinged on each support plate; a spring is arranged between the lower end of the locking block and the support plate, and a positioning block is arranged between the upper end of the locking block and the support plate; the upper end of the locking block is fixedly connected with a handle. During construction, the compression roller can be self-locked, the compression roller at the moment is pressed above the wire, the wire is located in the arc-shaped groove on the grooved wheel and the compression roller, the wire can not slide out of the grooved wheel in the dragging process, the abrasion and the blockage of the wire are avoided, the construction efficiency is improved, and the construction safety and the construction quality are guaranteed.
Description
Technical Field
The utility model relates to a coaster specifically is a coaster self-locking ware, belongs to the support that the wire laid and send the device.
Background
The tackle is a special tool for live working of an electric power system and the like, and is used for aerial traction and carrying during aerial laying of large-section wires. At present, the known wire hanging pulleys are hung on a cross arm of an iron tower by using a lifting hook or a pulley to complete the supporting and conveying function when the wires are dragged and laid.
The existing pulley generally comprises a bracket, wherein a grooved wheel is arranged below the bracket and used for penetrating an electric wire; the bracket is provided with a walking plate, and the walking plate is connected with a lifting hook or a pulley and is used for being hung on a cross arm of an iron tower; along with the movement of the steel strand, the pulley drags the wire to finish laying.
In the actual construction process, it is found that:
when the working condition of the field is poor or wind exists, the wire is easy to roll out of the grooved pulley, so that the wire is abraded and dragged, and even the grooved pulley is blocked to block the wire; resulting in reduced construction efficiency, unstable construction quality and even casualties.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a pulley is from locker.
The utility model discloses a following technical scheme realizes: a pulley self-locking device comprises a bracket, wherein a grooved wheel for a lead to penetrate is arranged below the bracket; the bracket comprises an upper bracket body and a lower bracket body; the left end of the upper frame body is hinged with the left end of the lower frame body, and the right end of the upper frame body is hinged with the right end of the lower frame body through a pin shaft; a row of grooved wheels for penetrating a wire are arranged on the lower frame body;
a press roller is rotatably arranged on the upper frame body, and a self-locking structure is arranged between the other end of the press roller and the upper frame body; during construction, the compression roller and the grooved pulley are arranged in parallel, the guide wire penetrates through the grooved pulley, and the compression roller is pressed on the guide wire;
the self-locking structure comprises a stop block fixed at the right end of the compression roller,
a pair of support plates are fixed at the right end of the upper frame body, and a locking block is hinged on each support plate; a spring is arranged between the lower end of the locking block and the support plate, and a positioning block is arranged between the upper end of the locking block and the support plate; the upper end of the locking block is fixedly connected with a handle.
It further comprises the following steps: the compression roller axis is rotatably provided with a rotating shaft, and the left end of the rotating shaft is hinged with the upper frame body.
The surface of the compression roller is provided with an arc-shaped groove opposite to the grooved wheel on the lower side.
The front side of the stop block is an inclined plane, and the rear side of the locking block is an inclined plane; when the stop block presses the locking block downwards, the inclined surface of the stop block is connected with the inclined surface of the locking block.
The upper frame body is triangular, two ends of the upper frame body are provided with support rods extending downwards, and the lower frame body is U-shaped.
An L-shaped stop lever is hinged to the inner side of the upper frame body; after the compression roller is rotated upwards, the L-shaped stop lever is supported below the compression roller at the shorter end of the L-shaped stop lever under the action of self gravity.
During construction, a lead penetrates through the grooved pulley, then the upper frame body and the lower frame body are closed through rotation and are fixedly connected through a pin shaft;
after the compression roller is rotated upwards, the shorter end of the L-shaped stop lever is propped against the lower part of the compression roller under the action of the self gravity of the L-shaped stop lever;
the pulley self-locking device is lifted, the lead is pulled, a running plate on the lead touches the longer end of the L-shaped stop lever, so that the L-shaped stop lever rotates, and at the moment, the compression roller falls under the action of self gravity; the stop block at the end part of the press roller touches the locking block to complete self-locking;
starting traction and carrying;
compared with the prior art, the beneficial effects of the utility model are that: the compression roller is pressed above the wire, the wire is positioned in the arc-shaped grooves on the grooved wheel and the compression roller, and the wire can not slide out of the grooved wheel in the dragging process, so that the abrasion and the blockage of the wire are avoided, the construction efficiency is improved, and the construction safety and the construction quality are ensured.
Drawings
FIG. 1 is a front view of the structure of the present invention (during self-locking);
FIG. 2 is a left side view of the structure of the present invention (during self-locking);
FIG. 3 is a front view of the structure of the present invention (before self-locking);
FIG. 4 is a view from A-A in FIG. 3 (before auto-locking);
in the figure: 1. a support; 1-1, putting the frame body on; 1-2, a lower frame body; 2. a grooved wheel; 3. a compression roller; 3-1, a rotating shaft; 4. an L-shaped stop lever; 5. a stopper; 6. a support plate; 7. a locking block; 8. a spring; 9. positioning blocks; 10. a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a sheave 2 for passing an electric wire is installed under a support 1, and a connection port is opened on the support 1. The bracket 1 comprises an upper bracket body 1-1 and a lower bracket body 1-2; the upper frame body 1-1 is triangular, two ends of the upper frame body 1-1 are provided with downwardly extending supporting rods, and the lower frame body 1-2 is U-shaped. The left end of the upper frame body 1-1 is hinged with the left end of the lower frame body 1-2, and the right end of the upper frame body 1-1 is detachably hinged with the right end of the lower frame body 1-2 through a pin shaft.
The improvement of the embodiment is that:
the upper frame body 1-1 is rotatably provided with a press roller 3, the axis of the press roller 3 is rotatably provided with a rotating shaft 3-1, and the left end of the rotating shaft 3-1 is hinged with the upper frame body 1-1. A self-locking structure is arranged between the other end of the rotating shaft 3-1 in the press roll 3 and the upper frame body 1-1. The surface of the press roll 3 is provided with an arc-shaped groove opposite to the grooved wheel 2 at the lower side. During construction, the compression roller 3 and the grooved pulley 2 are arranged in parallel, the conducting wire penetrates through the grooved pulley 2, and the arc-shaped groove of the compression roller 3 is pressed on the conducting wire.
Specifically, the method comprises the following steps: the self-locking structure comprises a stop block 5 fixed at the right end of the compression roller 3, a pair of support plates 6 are fixed at the right end of the upper frame body 1-1, and a locking block 7 is hinged on each support plate 6; a spring 8 is arranged between the lower end of the locking block 7 and the support plate 6, and a positioning block 9 is arranged between the upper end of the locking block 7 and the support plate 6; the upper end of the locking block 7 is also fixedly connected with a handle 10.
The front side of the stop block 5 is an inclined plane, and the rear side of the locking block 7 is an inclined plane; when dog 5 pushed down locking piece 7, dog 5 inclined plane contacted with locking piece 7 inclined plane, was convenient for dog 5 to push down locking piece 7.
And then connect 3 and as shown in fig. 4, in order to facilitate the automatic falling of compression roller 3 to lock, set up L type pin 4, specific: the inner side of the upper frame body 1-1 is hinged with an L-shaped stop lever 4; after the compression roller 3 is rotated upwards, the L-shaped stop lever 4 is supported below the compression roller 3 by the shorter end of the L-shaped stop lever 4 under the action of self gravity.
The working process is as follows:
during construction, a lead penetrates through the grooved pulley, then the upper frame body and the lower frame body are closed through rotation and are fixedly connected through a pin shaft;
after the compression roller is rotated upwards, the shorter end of the L-shaped stop lever is propped against the lower part of the compression roller under the action of the self gravity of the L-shaped stop lever;
the pulley self-locking device is lifted, the lead is pulled, a running plate on the lead touches the longer end of the L-shaped stop lever, so that the L-shaped stop lever rotates, and at the moment, the compression roller falls under the action of self gravity;
when the press roller falls, the inclined plane of the stop block 5 is connected with the inclined plane of the locking block 7, and the stop block 5 presses the locking block 7 downwards; the spring 8 is compressed, the lower end of the locking block 7 rotates outwards, and the stop block 5 passes over the locking block 7; under the elastic force action of the spring 8, the locking block 7 is reset, and the upper end of the locking block 7 is abutted to the positioning block 9; at the moment, the locking block 7 is blocked at the upper side of the stop block 5, so that the closing and self-locking of the compression roller are completed;
starting traction and carrying;
after the construction is finished, the handle 10 is rotated inwards to drive the lower end of the locking block 7 to rotate outwards; a sufficient gap is formed between the stop block 5 and the locking block 7, so that the normal rotation of the locking block 7 is ensured; after the locking piece 7 rotates to cross the stop block 5, the compression roller is rotated upwards, and the L-shaped stop lever is stopped under the compression roller, so that the next use is facilitated.
The embodiment can be seen that the pulley self-locking device can be automatically locked, and the use is convenient. In the work progress, the compression roller is pressed in the wire top, and the wire is arranged in the arc wall on sheave and compression roller, and when pulling, the wire can not roll off the sheave, has avoided the wearing and tearing and the card of wire to die, has improved the efficiency of construction, has guaranteed construction safety and construction quality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A pulley self-locking device comprises a bracket (1), wherein a grooved wheel (2) for a lead to penetrate is arranged below the bracket (1); the support (1) comprises an upper support body (1-1) and a lower support body (1-2); the left end of the upper frame body (1-1) is hinged with the left end of the lower frame body (1-2), and the right end of the upper frame body (1-1) is hinged with the right end of the lower frame body (1-2) through a pin shaft; a row of grooved wheels (2) for penetrating a lead are arranged on the lower frame body (1-2);
the method is characterized in that:
a press roller (3) is rotatably arranged on the upper frame body (1-1), and a self-locking structure is arranged between the other end of the press roller (3) and the upper frame body (1-1); during construction, the compression roller (3) and the grooved pulley (2) are arranged in parallel, the lead penetrates through the grooved pulley (2), and the compression roller (3) is pressed on the lead;
the self-locking structure comprises a stop block (5) fixed at the right end of the press roller (3),
a pair of support plates (6) are fixed at the right end of the upper frame body (1-1), and a locking block (7) is hinged on each support plate (6); a spring (8) is arranged between the lower end of the locking block (7) and the support plate (6), and a positioning block (9) is arranged between the upper end of the locking block (7) and the support plate (6); the upper end of the locking block (7) is fixedly connected with a handle (10).
2. The pulley autolocker according to claim 1, wherein: the axis of the compression roller (3) is rotatably provided with a rotating shaft (3-1), and the left end of the rotating shaft (3-1) is hinged with the upper frame body (1-1).
3. A block autolocker as claimed in claim 1 or 2, wherein: the surface of the compression roller (3) is provided with an arc-shaped groove opposite to the grooved wheel (2) on the lower side.
4. The pulley autolocker according to claim 1, wherein: the front side of the stop block (5) is an inclined plane, and the rear side of the locking block (7) is an inclined plane; when the stop block (5) presses the locking block (7), the inclined surface of the stop block (5) is connected with the inclined surface of the locking block (7).
5. The pulley autolocker according to claim 1, wherein: the upper frame body (1-1) is triangular, two ends of the upper frame body (1-1) are provided with downwardly extending support rods, and the lower frame body (1-2) is U-shaped.
6. The pulley autolocker according to claim 1, wherein: the inner side of the upper frame body (1-1) is hinged with an L-shaped stop lever (4); after the compression roller (3) is rotated upwards, the L-shaped stop lever (4) is propped against the lower part of the compression roller (3) at the shorter end of the L-shaped stop lever (4) under the action of the self gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111712.5U CN210142874U (en) | 2019-07-16 | 2019-07-16 | Self-locking device for pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111712.5U CN210142874U (en) | 2019-07-16 | 2019-07-16 | Self-locking device for pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210142874U true CN210142874U (en) | 2020-03-13 |
Family
ID=69736483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921111712.5U Active CN210142874U (en) | 2019-07-16 | 2019-07-16 | Self-locking device for pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210142874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362052A (en) * | 2021-11-26 | 2022-04-15 | 宁波送变电建设有限公司 | Power transmission line crossing pay-off system and working method thereof |
-
2019
- 2019-07-16 CN CN201921111712.5U patent/CN210142874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362052A (en) * | 2021-11-26 | 2022-04-15 | 宁波送变电建设有限公司 | Power transmission line crossing pay-off system and working method thereof |
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