CN213609498U

CN213609498U - Differential safety hook for electric power construction

Info

Publication number: CN213609498U
Application number: CN202021398681.9U
Authority: CN
Inventors: 蔡晨雨
Original assignee: Puxiao Electrical Technology Co ltd
Current assignee: Puxiao Electrical Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-07-06
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a differential safety hook is used in electric power construction relates to safety hook technical field, specifically is a differential safety hook is used in electric power construction, including protecting sheathing, protecting sheathing's inside movable mounting has the center pin, and the external fixation of center pin has cup jointed two spacing ratchets, two spacing ratchet is middle part fixed mounting has the take-up pulley. This differential safety hook is used in electric power construction, normal during operation, wire rope rotates at the uniform velocity, extension spring exerts the pulling force to the latch segment left side, the latch segment left and right sides reaches the balance, when the staff falls, the change appears in wire rope speed, wire rope exerts the thrust to the right side to the latch segment, thereby make the latch segment right-hand member block into the spacing ratchet outside, thereby restrict spacing ratchet position, realize emergency braking, relative and braking structure when centrifugation, wire rope displacement is shorter when braking the latch segment, the sensitivity of the device is improved.

Description

Differential safety hook for electric power construction

Technical Field

The utility model relates to a safety hook technical field specifically is a differential safety hook is used in electric power construction.

Background

The speed difference falling protector can quickly brake and lock falling objects within a limited distance, is suitable for hoisting goods, and protects the life safety of ground operators and the damage of hoisted workpiece objects. The safety protection device is suitable for safety protection when a suspended workpiece is prevented from accidentally falling during lifting of the overhead travelling crane, can effectively protect the life safety of ground operators and the damage of the object of the suspended workpiece, and is applied to high-place operation places such as metallurgical automobile manufacturing, petrochemical engineering, engineering construction, electric power, ships, communication, pharmacy, bridges and the like.

When electric power operation, operating personnel need wear the differential formula safety hook in order to guarantee the installation safety when the operation, and if operating personnel falls in the high altitude carelessly, because the falling speed is too fast, the differential formula safety hook of speed can start locking means immediately and lock the safety rope and prevent that operating personnel from continuing the tenesmus. The common speed difference type falling protector is connected on a rotating disc by using a pawl which is elastically folded and matched with a fixed disc, when the operator falls carelessly and the safety rope is pulled down rapidly, the pawl is thrown away centrifugally and clamps the fixed inner fluted disc, so that the rotating disc stops rotating to prevent the operator from falling, the pawl can be thrown away only when the steel wire rope reaches a certain speed through the limit of the centrifugal structure, the sensitivity is low, the steel wire rope cannot be locked in time for protection, certain potential safety hazards are caused, in addition, the connecting rope at the top of the falling protector is fixedly connected with the falling protector, when the anti-falling device works, when the anti-falling device rotates, the connecting rope at the top of the anti-falling device or the steel wire rope at the bottom of the anti-falling device is easily twisted, the connecting rope at the top of the anti-falling device or the steel wire rope at the bottom of the anti-falling device is easily damaged, and certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a differential safety hook is used in electric power construction has the advantage such as improve the protecting effect, prevent to connect the rope kink, has solved the problem of proposing among the above-mentioned background art.

For the purpose that improves the safeguard effect more than realizing, prevent to connect the rope kink, the utility model discloses a following technical scheme realizes: a differential safety hook for electric power construction comprises a protective shell, wherein a central shaft is movably arranged in the protective shell, two limiting ratchets are fixedly arranged in the middle of the protective shell, a wire winding wheel is fixedly arranged on the outer portion of the wire winding wheel, a rotating shaft positioned at the bottom of the central shaft is movably arranged in the inner portion of the central shaft, two locking blocks are fixedly sleeved on the outer portion of the rotating shaft, a rotating shaft is movably arranged on the left side of the inner portion of each locking block, a fixing rod is fixedly arranged in the protective shell, a tension spring is fixedly arranged on the outer portion of the fixing rod, the bottom end of the tension spring is fixedly connected with the locking blocks, a steering shaft is movably arranged in the inner portion of the protective shell, the wire rope is wound on the left side of the rotating shaft and on the right side of the steering shaft, a sleeve is fixedly sleeved, and the inside activity cover of sheathed tube is equipped with the go-between, the bottom fixed mounting of go-between has the spacing ring.

Preferably, the front surface of the protective shell is fixedly provided with a sealing end cover through a screw, and the inner side of the sealing end cover is provided with a cylindrical groove matched with the central shaft, the rotating shaft, the steering shaft and the fixing rod.

Preferably, a coil spring positioned on the back of the limiting ratchet wheel is fixedly sleeved outside the central shaft, and one end of the coil spring is fixedly connected with the protective shell.

Preferably, the two locking blocks are respectively positioned at the bottoms of the two limiting ratchet wheels, and the right end of each locking block is provided with a tip.

Preferably, the number of the extension springs outside the fixing rod is two, and the bottom ends of the two extension springs are respectively and fixedly connected with the locking block.

Preferably, the limiting bearings positioned at the top and the bottom of the sleeve are movably sleeved outside the lower part of the connecting ring, and the diameter value of the lower part of the connecting ring is the same as the inner diameter value of the sleeve.

The utility model provides a differential safety hook is used in electric power construction possesses following beneficial effect:

1. this differential safety hook is used in electric power construction, normal during operation, wire rope rotates at the uniform velocity, extension spring exerts the pulling force to the latch segment left side, the latch segment left and right sides reaches the balance, when the staff falls, wire rope speed changes, wire rope exerts the thrust to the right side to the latch segment, thereby make the latch segment right-hand member block advance the spacing ratchet outside, thereby restrict spacing ratchet position, realize emergency braking, relative and centrifugal time braking structure, the wire rope displacement is shorter when the latch segment brakes, the sensitivity of the device is improved, the protective effect of the device is further improved.

2. This differential safety hook is used in electric power construction, through at protecting sheathing top fixed mounting sleeve pipe, and make go-between and protecting sheathing swing joint through the sleeve pipe, and both sides install the spacing bearing with go-between swing joint additional about the sleeve pipe, when protecting sheathing during operation rotates, the go-between top installation connect the rope can with the protecting sheathing between the free rotation, prevent to appear kinking with go-between fixed connection's connection rope and wire rope, and then prevent to connect rope and wire rope and appear damaging, the security when using improves.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the appearance of the present invention;

fig. 3 is a schematic structural view of the back interior of the present invention.

In the figure: 1. a protective housing; 2. a central shaft; 3. a limiting ratchet wheel; 4. a rotating shaft; 5. a locking block; 6. A rotating shaft; 7. an extension spring; 8. a steering shaft; 9. a wire rope; 10. a sleeve; 11. a connecting ring; 12. A limit bearing; 13. sealing the end cap; 14. a coil spring; 15. and (5) fixing the rod.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: a differential type safety hook for electric power construction comprises a protective shell 1, a central shaft 2 is movably arranged inside the protective shell 1, two limiting ratchets 3 are fixedly sleeved outside the central shaft 2, a coil spring 14 positioned on the back of the limiting ratchets 3 is fixedly sleeved outside the central shaft 2, one end of the coil spring 14 is fixedly connected with the protective shell 1, torsion is applied to the central shaft 2, the limiting ratchets 3 and a coil wheel through the coil spring 14, so that a steel wire rope 9 can contract towards the inside of the protective shell 1, the effectiveness of the device is ensured, the two limiting ratchets 3 are fixedly provided with the coil wheel in the middle, the steel wire rope 9 is wound outside the coil wheel, a rotating shaft 4 positioned at the bottom of the central shaft 2 is movably arranged inside the central shaft 2, two locking blocks 5 are fixedly sleeved outside the rotating shaft 4, and the two locking blocks 5 are respectively positioned at the, the right end of the locking block 5 is provided with a tip, when an operator falls, the speed of the steel wire rope 9 changes, the steel wire rope 9 applies a thrust force to the locking block 5 towards the right side, so that the right end of the locking block 5 is clamped into the outer side of the limiting ratchet 3, the position of the limiting ratchet 3 is limited, emergency braking is realized, a braking structure in relative and centrifugal processes is realized, the moving distance of the steel wire rope 9 is shorter when the locking block 5 brakes, the sensitivity of the device is improved, the protection effect of the device is further improved, a rotating shaft 6 is movably installed at the left side inside the two locking blocks 5, a fixed rod 15 is fixedly installed inside the protective shell 1, an extension spring 7 is fixedly installed outside the fixed rod 15, the bottom end of the extension spring 7 is fixedly connected with the locking block 5, the number of the extension springs 7 outside the fixed rod 15 is two, and the bottom ends of the two extension, after emergency braking is relieved, the steel wire rope 9 does not work on the right side of the locking block 5, the tension spring 7 applies tension to the locking block 5, so that the locking block 5 can return to an initial position, the effectiveness of the device is ensured, meanwhile, when the steel wire rope 9 moves at a constant speed, the tension spring 7 applies tension to the locking block 5, so that the locking block 5 can reach balance, the steering shaft 8 is movably arranged in the protective shell 1, the steel wire rope 9 is wound on the left side of the rotating shaft 6 and the right side of the steering shaft 8, the front surface of the protective shell 1 is fixedly provided with the sealing end cover 13 through screws, the inner side of the sealing end cover 13 is provided with cylindrical grooves which are matched with the central shaft 2, the rotating shaft 4, the steering shaft 8 and the fixed rod 15, the front surface of the protective shell 1 is protected through the sealing end cover 13, and the internal components of the protective, in addition, the sealing end cover 13 is fixedly connected with the protective shell 1 through screws, so that the sealing end cover 13 is convenient to detach and maintain, and in addition, after the sealing end cover 13 is installed on the front surface of the protective shell 1, the central shaft 2, the rotating shaft 4, the steering shaft 8 and the fixed rod 15 are subjected to auxiliary fixing through the sealing end cover 13, so that the stability of each component in the working process is improved, the top of the protective shell 1 is fixedly sleeved with the sleeve 10, the inner movable sleeve of the sleeve 10 is sleeved with the connecting ring 11, the bottom end of the connecting ring 11 is fixedly provided with the limiting ring, the outer part below the connecting ring 11 is movably sleeved with the limiting bearings 12 positioned at the top and the bottom of the sleeve 10, the diameter value below the connecting ring 11 is the same as the inner diameter value of the sleeve 10, the connecting rope installed at the top of the connecting ring 11 can freely rotate with the protective shell 1, thereby preventing the connecting rope and the steel wire rope 9 from being damaged.

In conclusion, when the speed difference type safety hook for electric power construction is used, the connecting ring 11 is fixedly connected with the connecting rope at the top of the safety hook, the steel wire rope 9 is fixedly connected with a worker, when the worker normally works, the steel wire rope 9 is pulled to move at a constant speed, the tension spring 7 applies tension to the locking block 5, when the steel wire rope 9 moves at a constant speed, the left side and the right side of the locking block 5 are balanced, when the worker falls, the moving speed of the steel wire rope 9 is increased, the steel wire rope 9 applies a rightward acting force to the locking block 5 to drive the locking block 5 to rotate, the right end of the locking block 5 is clamped into the outer edge of the limiting ratchet 3 to lock the limiting ratchet 3, so that the steel wire rope 9 is emergently braked, after the emergently braked block is relieved, the steel wire rope 9 does not work on the right side of the locking block 5, the tension spring 7 applies tension to the locking block 5, the limit of the limit ratchet wheels 3 is relieved, the limit ratchet wheels 3 are applied with torsion through the coil springs 14 to drive the winding wheels in the middle of the two limit ratchet wheels 3 to rotate, the steel wire rope 9 retracts, the connecting ring 11 is movably connected with the protective shell 1 through the sleeve 10, and the connecting ring 11 and the protective shell 1 can freely rotate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a differential safety hook for electric power construction, includes protecting sheathing (1), its characterized in that: the inner movable mounting of the protective shell (1) is provided with a center shaft (2), two limiting ratchets (3) are sleeved on the outer fixing of the center shaft (2), the two limiting ratchets (3) are respectively provided with a winding wheel in the middle fixedly mounted manner, a steel wire rope (9) is wound on the outer portion of the winding wheel, the inner movable mounting of the center shaft (2) is provided with a rotating shaft (4) positioned at the bottom of the center shaft (2), the outer fixing of the rotating shaft (4) is sleeved with two locking blocks (5), the left side movable mounting of the inner portion of the locking blocks (5) is provided with a rotating shaft (6), the inner portion of the protective shell (1) is provided with a fixing rod (15), the outer portion of the fixing rod (15) is provided with a stretching spring (7), the bottom end of the stretching spring (7) is fixedly connected with the locking blocks (5), and the, wire rope (9) twine in the left side of axis of rotation (6) and the right side of steering spindle (8), sleeve pipe (10) have been cup jointed to the top of protecting sheathing (1) is fixed, and the inside movable sleeve of sleeve pipe (10) is equipped with go-between (11), the bottom fixed mounting of go-between (11) has the spacing ring.

2. The differential type safety hook for electric power construction according to claim 1, characterized in that: the front surface of the protective shell (1) is fixedly provided with a sealing end cover (13) through a screw, and the inner side of the sealing end cover (13) is provided with a cylindrical groove which is matched with the central shaft (2), the rotating shaft (4), the steering shaft (8) and the fixing rod (15).

3. The differential type safety hook for electric power construction according to claim 1, characterized in that: and a coil spring (14) positioned on the back of the limiting ratchet wheel (3) is fixedly sleeved outside the central shaft (2), and one end of the coil spring (14) is fixedly connected with the protective shell (1).

4. The differential type safety hook for electric power construction according to claim 1, characterized in that: the two locking blocks (5) are respectively positioned at the bottoms of the two limiting ratchet wheels (3), and the right end of each locking block (5) is provided with a tip.

5. The differential type safety hook for electric power construction according to claim 1, characterized in that: the number of the external extension springs (7) of the fixing rod (15) is two, and the bottom ends of the two extension springs (7) are respectively fixedly connected with the locking block (5).

6. The differential type safety hook for electric power construction according to claim 1, characterized in that: the limiting bearings (12) positioned at the top and the bottom of the sleeve (10) are movably sleeved outside the lower portion of the connecting ring (11), and the diameter value of the lower portion of the connecting ring (11) is the same as the inner diameter value of the sleeve (10).