CN106730474B

CN106730474B - Anti-falling device for operation of high-voltage line tower

Info

Publication number: CN106730474B
Application number: CN201611201799.6A
Authority: CN
Inventors: 徐健; 徐光荣; 何树香
Original assignee: Individual
Current assignee: Ma Weijie
Priority date: 2016-12-19
Filing date: 2016-12-19
Publication date: 2022-04-26
Anticipated expiration: 2036-12-19
Also published as: CN106730474A

Abstract

An anti-falling device for high-voltage line tower operation; the shell made of high-strength steel is of a C-shaped clamping groove structure, the C-shaped clamping groove is matched with a T-shaped track, the magnet is embedded in the clamping groove and cannot move freely in the movement with the track, a large-area composite brake sheet is adopted, the locking effect is improved, an operation pull arm adopts an upward and inward sliding groove, so that an operator can move smoothly and flexibly when moving upwards, and the ratchet wheel structure is adopted at the end of a locking cam shaft, so that the locking and fixing are reliable when dropping occurs, the operator can conveniently continue to use after leisurely handling and manual unlocking, and the above points are met; the use is more convenient, and the safety of the user is ensured effectively.

Description

Anti-falling device for operation of high-voltage line tower

Technical Field

The patent relates to the technical field of high-altitude construction safety protection, in particular to a high-voltage line tower operation anti-falling device.

Background

At present, with the high-speed development of the power industry, high-voltage and ultrahigh-voltage power transmission lines all adopt large iron towers, and because the iron towers are all higher and bring certain risks to the overhead operation of the lines, in order to prevent operators from accidentally falling and ensure the personal safety of the operators, a plurality of inventors have conceived many schemes, and numerous overhead operation falling prevention devices are disclosed, particularly, most of the high-voltage line tower T-shaped track falling protectors exist; the defects and shortcomings of inflexible sliding, unreliable falling locking and the like in the up-and-down operation process.

Disclosure of Invention

The purpose of this patent is to address the present time; the T-shaped rail falling protector has the current situations of various defects and shortcomings such as inflexible sliding, unreliable falling locking and the like in the process of loading and unloading the tower during operation, and provides the falling protector for the high-voltage line tower operation.

The technical scheme adopted by the patent for solving the technical problem is as follows; the shell made of high-strength steel is of a C-shaped clamping groove structure, the C-shaped clamping groove is matched with a T-shaped track, the clamping grooves correspond to two sides inside the T-shaped track and are respectively embedded with two magnets, so that the C-shaped clamping groove can not freely slide up and down, the front surface of the shell corresponds to the front surface of the T-shaped track, a groove for fixing a composite locking brake sheet is formed in the front surface of the T-shaped track, the composite locking brake sheet is fixed in the groove of the shell through a brake sheet spring by fixing screws, the outer end of the shell is provided with a pull arm, the pull arm and a locking cam are of an integrated structure and are fixed with the shell through a pull arm fixing shaft, the right side of the locking cam is provided with a pull arm spring, the left side of the locking cam is provided with a locking ratchet wheel matched with a locking claw end of a locking reset button, the locking reset button is provided with a locking reset button spring, the locking reset button spring is fixed on the left side of the shell through a button shaft and is connected with the locking ratchet wheel.

Wherein; the shell, the pull arm, the locking cam, the locking ratchet wheel, the locking reset button, the pull arm fixing shaft and the button shaft are all made of high-strength steel, the friction surface of the composite locking brake sheet is made of asbestos bakelite and a back composite steel plate, the friction surface with a T-shaped track is increased, the friction force is increased, when the locking cam acts, the locking effect is better, the safety rope hanging ring is hung in the sliding groove of the pull arm when a person moves downwards, the moving speed and the tension force are not more than the elastic force of a pull arm spring when the sliding groove of the pull arm moves upwards and the stress point of the safety rope hanging ring pulled upwards is basically vertical to the upper part, the safety rope hanging ring slides very smoothly and flexibly upwards without clamping stagnation, the safety rope hanging ring is hung in the sliding groove of the pull arm, when the person moves downwards, the moving speed and the tension force are suddenly accelerated, the pull arm drives the locking cam to apply pressing force to the composite locking brake sheet, and the composite locking brake sheet is locked with the plane of the T-shaped track, The sliding is stopped, the locking ratchet wheel is locked by the locking claw, the secondary sliding is prevented, the secondary sliding is avoided, and the locking ratchet wheel can be moved for use again only after being unlocked again, and is unlocked; the pull arm is pulled, the locking reset button is pressed down to loosen the pull arm, and the pull arm naturally resets under the action of the spring.

The beneficial effect of this patent lies in: because the magnet is embedded in the clamping groove and cannot move freely in the movement with the track, the locking effect is improved because the large-area composite brake sheet is adopted, the operation pull arm adopts the upward and inward sliding groove, the operation personnel can move smoothly and flexibly when moving upwards, and the reliable locking and fixing are realized when falling occurs because the ratchet wheel structure is adopted at the end of the locking cam shaft, so that the operation personnel can continue to use after leisurely handling and manual unlocking, and the above points are realized; the use is more convenient, and the safety of the user is ensured effectively.

Drawings

The patent is further described with reference to the accompanying drawings.

Fig. 1 is a right side sectional view of the present patent.

FIG. 2 is a front cross-sectional block diagram of this patent.

Fig. 3 is a top cross-sectional view of the patent.

FIG. 4 is a left side sectional ratchet lock configuration of the present patent.

In the figure: 1. a housing; 2. a card slot; 3. pulling the arm; 4. a locking cam; 5. a pull arm chute; 6. a pull arm fixing shaft; 7. a pull arm spring; 8. a composite locking brake sheet; 9. a "T" shaped track; 10. a magnet; 11. a locking reset button; 12. a button shaft; 13. locking the ratchet wheel; 14. a locking reset button spring; 15. a locking claw; 16. a brake sheet fixing screw; 17. a brake leaf spring.

Detailed Description

This patent includes the drawings in which: the shell (1) is composed of a C-shaped structure clamping groove (2) matched with a T-shaped track (9), the clamping groove (2) corresponds to two sides in the T-shaped track (9) and is respectively embedded with two magnets (10), the front surface of the shell (1) corresponds to the front surface of the T-shaped track (9), a groove for fixing a composite locking brake sheet (8) is formed, the composite locking brake sheet (8) is fixed in the groove of the shell (1) through a brake sheet spring (17) and a brake sheet fixing screw (16), a pull arm (3) and a locking cam (4) are arranged at the outer end of the shell (1), the pull arm (3) and the locking cam (4) are of an integrated structure and are fixed with the shell (1) through a pull arm fixing shaft (6), a pull arm spring (7) is arranged at the right side of the locking cam (4), a locking ratchet (13) is manufactured at the left side of the locking cam (4) and is matched with a locking claw (15) end of a locking reset button (11), the locking reset button (11) is provided with a locking reset button spring (14) and is formed by fixing a button shaft (12) on the left side of the shell (1) and connecting the button shaft and the shell together.

The clamping grooves (2) of the shell (1) correspond to two sides in the T-shaped track (9) and are respectively embedded with two magnets (10), so that the shell cannot move under the condition of no external force at any position, wherein; the shell (1), the pull arm (3), the locking cam (4), the locking ratchet wheel (13), the locking reset button (11), the pull arm fixing shaft (6) and the button shaft (12) are all made of high-strength steel.

The utility model also adopts a composite locking brake sheet (8); the friction surface of the composite locking brake sheet (8) is made of asbestos bakelite and a back composite steel plate, so that the friction surface with the T-shaped track (9) is increased, and the locking effect is better when the locking cam (4) acts.

The patent also discloses that the pull arm (3) is provided with an upward and inward pull arm sliding groove (5); when the device is used, the stress point pulled upwards is basically vertically above, and the upward sliding is smooth and flexible without clamping stagnation.

The safety rope hanging ring is hung in the sliding groove (5) of the pull arm (3), when a person moves downwards, the moving speed and the pulling force are not more than the elastic force of the pull arm spring (7), the safety rope hanging ring can smoothly move downwards, when the moving speed is suddenly increased and the force is increased, the pull arm (3) drives the locking cam (4) to apply pressing force on the composite locking brake sheet (8), the composite locking brake sheet (8) and the T-shaped track (9) are locked and stop moving, the locking ratchet wheel (13) is locked by the locking claw (15) to prevent secondary sliding, and the safety rope hanging ring can be moved for use again only after being unlocked again and is unlocked; tensioning the pull arm (3), pressing the locking reset button (11), and loosening the pull arm (3) to naturally reset.

Due to the unique design of the novel anti-falling device, because the magnet (10) is embedded in the clamping groove (2) and cannot freely move in the movement of the T-shaped track (9), and because the large-area composite locking brake sheet (8) is adopted, the locking effect is improved, and because the pull arm (3) is operated to adopt the pull arm sliding groove (5) which is upward and inward, when an operator moves upward, the operator can smoothly and flexibly move, and because the locking ratchet wheel (13) structure is adopted at the left end of the locking cam (4), the reliable locking and fixing can be realized when falling occurs, the operator can conveniently and easily handle, and can continue to use after manually pressing the locking reset button (11) to unlock, and because of the above points; the use is more convenient, and the safety of the user is ensured effectively.

The above description is only for the best mode of carrying out the patent, and it should be noted that, for those skilled in the art, many modifications and substitutions and technical extensions can be made without departing from the technical principle of the patent, and these modifications and substitutions and technical extensions should also be regarded as the technical scope of the patent and also belong to the protection scope of the patent.

Claims

1. The utility model provides a high tension line tower operation anti-falling device which characterized in that: the shell (1) is composed of a C-shaped structure clamping groove (2) matched with a T-shaped track (9), the clamping groove (2) is embedded with two magnets (10) corresponding to two sides of the interior of the T-shaped track (9), a composite locking brake sheet (8) is fixed in a groove of the shell (1) through a brake sheet spring (17) and a brake sheet fixing screw (16), a pull arm (3) is installed at the outer end of the shell (1), the locking cam (4) is fixed with the shell (1) through a pull arm fixing shaft (6), a pull arm spring (7) is installed on the right side of the locking cam (4), a locking ratchet wheel (13) is manufactured on the left side of the locking cam (4) and matched with the end of a locking claw (15) of a locking reset button (11), and the locking reset button (11) is provided with a locking reset button spring (14) and fixed on the left side of the shell (1) through a button shaft (12) and is connected with the locking ratchet wheel and the locking claw;

wherein the friction surface of the composite locking brake sheet (8) is made of asbestos bakelite and a back composite steel plate; the clamping groove (2) is embedded with two magnets (10) corresponding to two sides in the T-shaped track (9); the pull arm (3) is provided with a pull arm sliding groove (5) which faces upwards and inwards; the locking cam (4) and the locking ratchet wheel (13) are locked by a locking claw (15).