CN105470887A - Electrified rapid locking wire clamp - Google Patents

Abstract

The invention discloses an electrified rapid locking wire clamp used for installing lightning arresters with series gaps on a power transmission line. The electrified rapid locking wire clamp is implemented by arranging a gear locking mechanism driven by a rotation handle in the middle portion of a wire clamp main body, and integrally fixing a driven gear of the gear locking mechanism and a wire clamp gland. According to the electrified rapid locking wire clamp, the gear locking mechanism is adopted to drive and lock the wire clamp gland to form the installation wire clamp, so that the opening and closing of the wire clamp, the clamping of a conducting wire, and irreversible rotation are realized; and compared with the prior art, the electrified rapid locking wire clamp has the prominent substantive features and significant progress of fast installation speed, high safety performance, non-loosening locking, capability of performing live-line operation, novel and unique concept, compact and reasonable structural design, effort-saving, convenient and simple operation, stable and reliable working performance, suitability for wide popularization in the industry and the like.

Description

A live fast locking clamp

Technical field: The present invention relates to an installation clamp, in particular to an installation clamp used when installing an arrester with a series gap on a transmission line of a power system and connecting a conductor.

Background technology: The installation of lightning arresters is an important measure for lightning protection of transmission lines. The gap between series insulators has been widely used on transmission lines because of its stable gap, good support effect on lightning arresters, convenient installation, and not limited by tower types. At present, when domestic towers are installed with series insulator gap arresters, ordinary suspension clamps are used, which are mainly composed of hanging plates, clamp main bodies, clamp pressure strips, U-shaped screws and supporting flat washers, spring washers, and nuts. During installation, all the components must be disassembled, and the wires must be put into the clamps before being reassembled and fastened. The operation is complicated and the parts are easy to fall off. Like other types of surge arresters, the connection between the series insulator gap arrester and the line conductor must be carried out when the line is powered off, or it can be operated by means of human body equipotential live work. Line outages reduce the reliability of power grid power supply, which does not meet the work objectives of power supply companies to provide stable power grids; and the equal potential live work of personnel has many dangerous points, high safety risks, and high construction costs, so it is not suitable for large-scale adoption. Therefore, it has become an urgent technical problem to be solved in this field to develop a new type of live working fitting, improve the current installation process, realize the non-stop power transmission line, and connect the ground potential operation of the personnel to install the lightning arrester and the wire connection.

Invention content:

The purpose of the present invention is to provide a live fast locking clamp, which can realize the safe, fast and reliable installation and locking of the clamp when the arrester is connected to the wire under the condition of live work at ground potential, so as to make up for the existence of the existing technology. Insufficient.

An electrified fast locking wire clip of the present invention includes a wire clip main body, a wire clip gland, a rubber shoe, a connecting assembly and a rotating shaft, and also includes a gear locking mechanism driven by a rotating handle arranged in the middle of the wire clip main body, and the The driven gear in the gear locking mechanism is connected and fixed to the clamp gland.

The gear locking mechanism is to flexibly connect the driving gear, the locking gear and the rotating handle through the upper connecting seat and the connecting assembly provided on the main body of the wire clamp, and set a push rod part and the lower connecting seat in the middle of the rotating handle respectively. The first brake lock block and the second brake lock block are sleeved on the brake pin and the spring, and the ends of the first and second brake lock blocks are respectively meshed with the driving gear and the locking gear. And the driven gear fixed integrally with the wire clip gland is meshed with the driving gear.

The main body of the clamp is a rectangular through hole in the middle of the connecting body part on the upper part of the chuck, and the upper and lower sides of the rectangular through hole on the outside of the chuck are respectively provided with outward protrusions and connection holes. A fixed connection piece composed of a connecting seat.

The clamp gland is a movable connecting piece composed of an arc-shaped connecting plate on the outside of the movable chuck and connecting holes on the connecting plate.

The present invention adopts the installation wire clip composed of the wire clip gland driven and locked by the gear locking mechanism, so as to realize the closing of the wire clip, the clamping of the wire and the irreversible rotation. It is similar to the prior art. Compared with it, it has the substantive characteristics of fast installation, strong safety performance, no loosening, live working, novel and unique invention concept, compact and reasonable structural design, labor-saving and easy operation, stable and reliable working performance, and is suitable for vigorous promotion in the industry. Significant progress.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the top view of Fig. 1;

Figure 4 is an expanded view of Figure 1;

Fig. 5 is a front view of the main structure of the wire clip;

Figure 6 is a top view of Figure 5;

Fig. 7 is a front view of the clamp gland;

Fig. 8 is the left view of Fig. 7;

Fig. 9 is a structural schematic diagram of the first and second brake lock blocks.

detailed description

As shown in FIGS. 1-9 , a live fast locking clamp of the present invention is composed of three parts: a clamp main body 1 , a clamp cover 2 and a gear locking mechanism 3 . The clamp main body 1 is a rectangular through-hole 4 set in the middle of the connecting body (also known as the hanging plate) on the upper part of the chuck, and the upper and lower sides of the rectangular through-hole 4 on the outer side of the chuck are respectively provided with outward The upper and lower connecting bases 6, 5 that protrude and establish the connecting holes form the fixed connectors. The top of the connecting body of the clamp main body 1, the outside of the clamp and the connecting plate outside the movable clamp of the clamp gland 2 are all provided with a hanging and fixed installation hole. The clamp gland 2 is a movable connecting piece formed by setting an arc-shaped connecting plate in the center of the outer side of the movable chuck and connecting holes on the connecting plate. The arc-shaped connecting plate is in the same plane as the hanging fixing hole, and the movable chuck has built-in rubber tiles to increase the holding force on the wire and prevent the wire clip from loosening. The clamp main body 1 and the clamp cover 2 are movably connected through the rotating shaft between the clamp and the movable clamp. And the clamp gland 2 is fixed integrally with the driven gear 7 of the gear locking mechanism 3 through the connecting hole and the bolt on the arc connecting plate. The gear locking mechanism 3 is movably connected with the driving gear 8 and the locking gear 9 through the upper connecting seat 6 and the connecting assembly set on the main body of the wire clamp 1 (the driving gear 8 and the locking gear 9 are located in the center of the connecting assembly shaft, And the driving gear 8 and the locking gear 9 partly pass through the rectangular through hole 4 of the clamp main body 1) and the rotating handle 10 (the pushing part of the rotating handle 10 is located in the upper connection seat 5 between the driving gear 8 and the locking gear 9 On both sides), the first brake lock block 11 and the second brake lock block 12 set on the push rod part in the middle of the rotating handle 10 and the lower connecting seat 5 are set respectively on the brake pin and the spring. The ends of the first brake lock block 11 and the second brake lock block 12 are tooth-shaped, and mesh with the driving gear 8 and the locking gear 9 respectively. And the driven gear 7 which is fixed integrally with the wire clamp cover 2 is meshed with the driving gear 8 .

As can be seen from the above, the driven gear 7 of the present invention is integrally connected with the clamp gland 2 via bolts, and rotates through the rotating shaft 9, and the driving gear 8, the locking gear 9, and the rotating handle 10 are coaxially connected to the clamp main body 1. The rotating handle 10 pushes the driving gear 8 to rotate through the first brake block 11, and drives the locking gear 9 to rotate. The driven gear 7 is meshed with the driving gear 8, which drives the wire clamp gland 2 to rotate, realizes the closing of the wire clamp and clamps the wire. The irreversible rotation of the locking gear 9 is realized by the brake lock block 12, thereby ensuring that the wire clamp holds the wire tightly. The radius of rotation of driven gear 7, driving gear 8, and locking gear 9 are respectively 140mm, 20mm, and 50mm among the present invention, and the modulus of driving gear 8 and driven gear 7 is 2, and the modulus of locking gear 9 is 1.5. When the locking gear 9 rotates one tooth, the rotation angle is 5.4 degrees, and the driven gear 7 rotates 1.04 degrees to the compression of the wire clamp. The length of the turning handle is 175mm and can be extended. Experiments show that: the rotation pressure ratio is 1:45, that is, turning the handle 10 exerts a Newton force, and the wire clamp generates a 45 Newton force on the wire. When the clamp needs 2500 Newton pressure, it only needs to apply 56 Newton force by the handle. Due to the advantages of the design structure of the present invention, the components do not need to be disassembled during installation, and the wire clip can be installed safely, quickly and reliably only with relatively small force. The clamp body 1 and the clamp cover 2 are made of energy-saving and non-magnetic materials, and the wires are quickly installed in the clamp through the gear locking mechanism 3, so as to ensure that the wires are not damaged during the operation of the clamp and fully meet the requirements of the electrical and mechanical properties of the arrester. Various technical requirements.

Claims (4)

1. a charged rapid locking cable clamp, comprise wire clip body (1), wire clamp gland (2), rubber tile, coupling assembling and rotating shaft, it is characterized in that: the middle part that it is also included in wire clip body (1) arranges the wheel gear locking mechanism (3) that turning handle (10) drives, and the driven gear (7) in described wheel gear locking mechanism (3) and described wire clamp gland (2) are connected and fixed.

2. the charged rapid locking cable clamp of one according to claim 1, it is characterized in that: described wheel gear locking mechanism (3) is flexibly connected driving gear (8) through the upper set upper connecting base (6) of wire clip body (1) and coupling assembling, locking gear (9) and turning handle (10), described turning handle (10) middle part pusher section and lower connecting base (5) establish one to be socketed in first on catch pin and spring respectively brake lock dog (11) and second and brake lock dog (12), described first braking lock dog (11), second braking lock dog (12) end respectively with described driving gear (8), locking gear (9) is nibbled mutually, and be meshed with driving gear (8) with the driven gear (7) that wire clamp gland (2) is fixed as one.

3. the charged rapid locking cable clamp of one according to claim 1, it is characterized in that: described wire clip body (1) arranges rectangular through-hole (4) in the middle of the individual connector part on chuck top, and outside chuck, the upper and lower both sides of its rectangular through-hole (4) are respectively equipped with outwardly convex and establish the fixed connecting piece that the upper and lower Connection Block of connecting hole (6,5) is formed.

4. the charged rapid locking cable clamp of one according to claim 1, is characterized in that: described wire clamp gland (2) is individual at removable chuck arranged outside arc connecting plate, and the active connection that on this connecting plate, set connecting hole forms.