CN114194997A

CN114194997A - Automatic high-altitude unhooking device for hoisting electric power iron tower

Info

Publication number: CN114194997A
Application number: CN202111587432.3A
Authority: CN
Inventors: 刘超; 李文杰; 刘志东; 褚恩葆; 马骏; 刘庆林; 王斌; 孟令健; 曹涛; 高国; 毛华; 崔荣坤; 杜春阳; 栗世勇; 詹云腾; 杜祎; 孟啸啸; 潘光; 李春雪; 党国毅
Original assignee: State Grid Tianjin Electric Power Co Ltd; Construction Branch of State Grid Tianjin Electric Power Co Ltd; State Grid Corp of China SGCC
Current assignee: State Grid Tianjin Electric Power Co Ltd; Construction Branch of State Grid Tianjin Electric Power Co Ltd; State Grid Corp of China SGCC
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-03-18

Abstract

The invention discloses an overhead automatic unhooking device for hoisting an electric power iron tower, which can realize that a pre-installed part of the iron tower and a crane hook are quickly connected when the electric power iron tower is installed, and a separation rope is pulled after the electric power iron tower is hoisted, so that the separation rope is quickly separated from the pre-installed tower body part. The electric iron tower hoisting unhooking device comprises a lifting hook body, a lifting belt, a lifting ring, a locking structure, an unlocking structure and the like. The hanging strip and the hanging ring pass through the angle steel of the preassembled tower body through the hanging strip and then are jacked into the closing and locking structure, and the connection of the hanging hook and the preassembled tower body is completed. The lifting ring of the unhooking device is connected with a crane lifting hook through a steel wire rope, the crane lifting hook lifts upwards, and the unhooking device is locked through the self weight of the tower body. When the pre-installed iron tower is completely butted, the crane hook is lowered, a ground installer pulls the separation rope to trigger the unlocking structure, the hanging strip is separated from the hanging ring of the hanging ring, the crane hook is lifted, and the separation of the hanging hook device and the tower body is completed.

Description

Automatic high-altitude unhooking device for hoisting electric power iron tower

Technical Field

The invention relates to the technical field of electric power iron tower installation, in particular to a high-voltage power transmission iron tower hoisting hook device, and particularly relates to an overhead automatic unhooking device for hoisting an electric power iron tower.

Background

At present, in the hoisting process of a high-voltage transmission tower, manual auxiliary installation and operation in a mode of separating from a hoisting hook are mostly adopted, an installer is required to frequently climb a tower body to a preassembly position, or the installer stands on the hoisted preassembly tower body, the operation mode can cause safety accidents of falling of the installer, and great potential safety hazards exist for the life safety of the installer.

Disclosure of Invention

In order to solve the problems in the background art, the invention aims to provide an overhead automatic unhooking device for hoisting an electric iron tower.

In order to realize the purpose of the invention, the technical scheme provided by the invention is as follows:

the invention provides a high-altitude automatic unhooking device for hoisting an electric power iron tower, which comprises a hanging ring, a pull rod, a hanging hook body, a hanging belt, the hanging ring, a locking hook, an unlocking mechanism and a locking mechanism, wherein the hanging ring is arranged on the hanging hook body;

the lifting ring is connected with a pull rod, and the pull rod is connected with the unlocking mechanism; the unlocking mechanism is connected with the lock hook and is used for driving the lock hook to swing; the locking mechanism is arranged in the lifting hook body and used for limiting the locking hook; the lifting belt and one end of the lifting ring are connected with the lifting hook body through a pin shaft, and the other end of the lifting belt is matched with the locking hook for use and locked through the locking hook.

The unlocking mechanism comprises a toggle hinge arm, a swing connecting arm, a steel wire spring, a latch hook pin shaft and a separation rope, the latch hook is assembled on the hook body through the latch hook pin shaft and the steel wire spring in a matching mode, the latch hook is in a normally closed state due to the spring force of the steel wire spring, the separation rope is connected with the toggle hinge arm through the pin shaft, the toggle hinge arm is clamped into the groove of the latch hook pin shaft, the separation rope is pulled to drive the toggle hinge arm to rotate the latch hook pin shaft, the latch hook is opened, the toggle hinge arm is connected with the swing connecting arm through the pin shaft, and the pull rod penetrates through the deep hole of the hook body and then is connected with the swing connecting arm through the pull rod pin shaft.

The locking mechanism comprises a lock tongue, a guide pin, a lock tongue spring and a lock tongue spring baffle; spring bolt spring back plate embedding lifting hook body is inside, spring bolt spring back plate below interval is provided with the spring bolt, the spring bolt is packed into to the spring bolt, the both sides of spring bolt are assembled on the lifting hook body by uide pin and self-locking nut cooperation, and the highest and the extreme low position of the spout restriction spring bolt of uide pin and spring bolt both sides, the uide pin can slide in the spout.

Wherein, the rings are fixed after penetrating into the hole site at the upper end of the pull rod through the open thread lock.

The two opposite side walls at the lower end of the lifting hook body are provided with locking hook through holes which are used for the locking hooks to penetrate through and correspond to each other in position.

Compared with the prior art, the invention has the beneficial effects that:

by using the hoisting hook device, an installer can realize the auxiliary operation of the hook on the ground without climbing to the tower body for high-altitude operation, the takt speed of installing and disassembling the hook is accelerated, the time for connecting and separating the hoisting pre-installed tower body and the hook of the crane is saved, the working efficiency is improved, and the safety of the whole installation process is enhanced. In addition, the invention adopts the spring quick locking structure and the pull rod lifting anti-unlocking design to make the high-voltage transmission iron tower hoisting preparation work quicker and safer.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic view of a partial cross-sectional structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of the unlocked state of the present invention;

FIG. 4 is a schematic view of the locking state of the present invention;

FIG. 5 is a schematic view of a hook body according to an embodiment of the present invention;

FIG. 6 is a schematic view of a partial structure from a first perspective according to an embodiment of the present disclosure;

FIG. 7 is a second perspective view of a portion of an embodiment of the present invention;

in the drawing, a lifting hook body 1-1, a hanging belt and lifting ring 1-2, a lock tongue 2-1, a guide pin 2-2, a lock tongue spring 2-3, a lock tongue spring baffle 2-4, a lock hook 3-1, a lock hook pin shaft 3-2, a steel wire spring 3-3, a toggle hinge arm 3-4, a swing connecting arm 3-5, a pull rod pin shaft 3-6, a pull rod 3-7, a lifting ring 3-8 and a separation rope 3-9.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when used in this specification the singular forms "a", "an" and/or "the" include "specify the presence of stated features, steps, operations, elements, or modules, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As used herein, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be understood that when an element is referred to herein as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention is further described with reference to the following figures and detailed description.

The high-altitude automatic unhooking device for hoisting the electric power iron tower can realize that the pre-installed part of the iron tower and a crane hook are quickly connected when the electric power iron tower is installed, and the detachment rope is pulled after the hoisting is finished to quickly detach from the pre-installed tower body part. The electric iron tower hoisting unhooking device comprises a lifting hook body, a lifting belt, a lifting ring, a locking structure, an unlocking structure and the like. The hanging strip and the hanging ring pass through the angle steel of the preassembled tower body through the hanging strip and then are jacked into the closing and locking structure, and the connection of the hanging hook and the preassembled tower body is completed. The lifting ring of the unhooking device is connected with a crane lifting hook through a steel wire rope, the crane lifting hook lifts upwards, and the unhooking device is locked through the self weight of the tower body. When the pre-installed iron tower is completely butted, the crane hook is lowered, a ground installer pulls the separation rope to trigger the unlocking structure, the hanging strip is separated from the hanging ring of the hanging ring, the crane hook is lifted, and the separation of the hanging hook device and the tower body is completed.

Examples

As shown in fig. 1-7, the embodiment of the invention comprises a lifting ring 3-8, a pull rod 3-7, a lifting hook body 1-1, a lifting belt and lifting ring 1-2, a locking hook 3-1, an unlocking mechanism and a locking mechanism;

the lifting ring 3-8 is connected with the pull rod 3-7, and the pull rod 3-7 is connected with the unlocking mechanism; the unlocking mechanism is connected with the lock hook 3-1 and is used for driving the lock hook 3-1 to swing; the locking mechanism is arranged inside the hook body 1-1 and used for limiting the lock hook 3-1; one end of the hanging strip and one end of the hanging ring 1-2 are connected with the lifting hook body 1-1, and the other end of the hanging strip and the lifting hook body 3-1 are matched for use and are locked through the locking hook 3-1.

The locking mechanism comprises a bolt 2-1, a guide pin 2-2, a bolt spring 2-3 and a bolt spring baffle 2-4. The spring baffle 2-4 of the spring bolt is embedded into the hook body 1-1, the spring bolt spring 2-3 is inserted into the hook body 1-1 after being installed into the spring bolt, the two sides of the spring bolt spring are assembled on the hook body 1-1 through the matching of the guide pin and the self-locking nut, and the guide pin 2-2 and the sliding grooves on the two sides of the spring bolt 2-1 limit the highest position and the lowest position of the spring bolt.

The unlocking structure comprises a lock hook pin shaft 3-2, a steel wire spring 3-3, a toggle hinge arm 3-4, a swing connecting arm 3-5, a pull rod pin shaft 3-6 and a separation rope 3-9. The latch hook is assembled on the lifting hook body through the latch hook pin shaft and the steel wire spring in a matching mode, and the normally closed state is achieved due to the action of the spring force. The separating rope is connected with the shifting hinge arm through a pin shaft, the shifting hinge arm is clamped into a groove of the lock hook pin shaft, and the shifting hinge arm is driven by pulling the separating rope so as to enable the lock hook pin shaft to rotate and enable the lock hook to be opened. The toggle hinge arm is connected with the swing connecting arm through a pin shaft, and the pull rod penetrates through the deep hole of the lifting hook body and then is connected with the swing connecting arm through the pin shaft. The hanging ring penetrates through a hole position at the upper end of the pull rod through an opening thread lock and then is fixed.

Fig. 1 shows the locked state of the present invention.

The hanging strip and the lifting ring 1-2 are fixed on the lifting hook body 1-1 through a pin shaft and a clamping needle, the hanging strip is used for winding angle steel on the upper portion of an iron tower to be lifted, then the angle steel is jacked into the lock tongue 2-1 through the lifting ring, the lock tongue moves upwards, a blocking piece structure on the lock tongue is separated from blocking of the lock hook 3-1, the lock hook is pushed through the spring force of the steel wire spring 3-3, and the locking step is completed after the lock hook penetrates through the lifting ring. In the hoisting process, the hoisting rings 3-8 drive the pull rods 3-7 to be subjected to upward pulling force of a crane, the pulling force is larger than the self weight of the hoisting tower body and larger than any pulling force exerted by people, and therefore the pull rod design has the function of locking and unlocking the locking structure in the hoisting process.

Fig. 2 is a sectional view of the locking mechanism of the present invention, and fig. 4 is a state view of the locking mechanism.

The spring bolt 2-1 is internally provided with a spring bolt spring 2-3, a spring bolt spring baffle 2-4 is embedded into the hook body 1-1 and then is filled with the spring bolt spring, sliding grooves are formed in two sides of the spring bolt, and the guide pin 2-2 is inserted into the sliding grooves in two sides of the spring bolt through holes in the hook body and then is fixed by a self-locking nut, so that the spring bolt can slide up and down in the hook body under the action of spring force, and the sliding distance is limited by the lengths of the sliding grooves in two sides of the spring bolt.

Fig. 3 shows the unlocked state of the present invention.

Under the condition that the pull rod 3-7 is not subjected to any upward pulling force, the swing connecting arm 3-5 is connected with the pull rod through a pull rod pin shaft 3-6 to be in a loose state, the pull separation rope 3-9 is pulled to drive the shifting hinge arm 3-4, the shifting hinge arm drives the lock hook pin shaft 3-2 to rotate, so that the lock hook 3-1 is driven to be opened until the lock tongue falls back to the maximum downward movement distance under the spring force action of the spring tongue spring, the blocking piece structure of the lock tongue just blocks the rebounding of the lock hook under the spring force action of the steel wire spring 3-3, the whole sling lifting hook is separated, and the whole lifting hook is in an unlocking state.

Therefore, the invention realizes the functions of quick installation and quick separation of the lifting hook by using the structures of a material pull-up force locking and locking unlocking structure, a spring lock tongue catch structure, a lock tongue sliding groove, a lock hook steel wire spring and the like, has the function of preventing accidental unlocking in the hoisting process, and improves the beat and the safety of the iron tower hoisting process.

The technical means not described in detail in the present application are known techniques.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A high-altitude automatic decoupling device for hoisting a power iron tower is characterized in that: comprising a lifting ring (3-8), a tie rod (3-7), a hook body (1-1), a sling and a lifting ring (1-2), Lock hook (3-1), unlocking mechanism, locking mechanism;

The lifting ring (3-8) is connected with the pull rod (3-7), and the pull rod (3-7) is connected with the unlocking mechanism; the unlocking mechanism is connected with the lock hook (3-1), which is used for driving The locking hook (3-1) swings; the locking mechanism is arranged inside the hook body (1-1) to limit the locking hook (3-1); the sling and the lifting ring ( 1-2) One end is connected with the hook body (1-1), the other end is used in cooperation with the locking hook (3-1), and is locked by the locking hook (3-1).

2. The high-altitude automatic decoupling device for hoisting a power iron tower according to claim 1, wherein the unlocking mechanism comprises a toggle hinge arm (3-4), a swing connecting arm (3-5), a wire spring (3-3), the lock hook pin (3-2), and the release rope (3-9), the lock hook (3-1) is connected to the wire spring (3-3) through the lock hook pin (3-2) ) is fitted to the hook body (1-1), the locking hook (3-1) is in a normally closed state due to the spring force of the wire spring (3-3), and the release rope (3-9) is connected to the dial The movable hinge arm (3-4) is connected by a pin shaft, and the toggle hinge arm (3-4) is inserted into the groove of the lock hook pin shaft (3-2), and is driven by pulling the release rope (3-9). Toggle the hinge arm (3-4) to rotate the lock hook pin (3-2), so that the lock hook (3-1) is opened, and the toggle hinge arm (3-4) is connected to the swing connection arm (3- 5) Connected by a pin shaft, the pull rod (3-7) penetrates the deep hole of the hook body (1-1) and is connected with the swing connecting arm (3-5) through the pull rod pin shaft (3-6).

3. The high-altitude automatic decoupling device for hoisting a power iron tower according to claim 1, wherein the locking mechanism comprises a deadbolt (2-1), a guide pin (2-2), a deadbolt spring ( 2-3), a latch spring baffle (2-4); the latch spring baffle is embedded inside the hook body (1-1), and the latch spring baffle (2-4) is provided at intervals with a Lock tongue (2-1), the lock tongue spring (2-3) is loaded into the lock tongue (2-1), and the two sides of the lock tongue (2-1) are connected by guide pins (2-2) and self-locking tongues (2-1). The lock nut is fitted on the hook body (1-1). The guide pin (2-2) and the sliding grooves on both sides of the lock tongue (2-1) limit the highest and lowest positions of the lock tongue. The guide pin (2-2) ) can slide in the chute.

4. The high-altitude automatic decoupling device for hoisting a power iron tower according to claim 1, characterized in that: the lifting ring (3-8) is inserted into the hole at the upper end of the tie rod (3-7) through an open thread lock and then fixed. .

5. The high-altitude automatic decoupling device for hoisting a power iron tower according to claim 1, wherein the two opposite side walls of the lower end of the hook body (1-1) are provided with a hook for the lock hook to pass through. , the corresponding position of the lock hook perforation.