CN110943404A

CN110943404A - Temporary drainage wire fixing device

Info

Publication number: CN110943404A
Application number: CN201911242708.7A
Authority: CN
Inventors: 易显涛; 李刚; 冯刚; 颜旭东
Original assignee: Chongqing Chuan Dong Power Group Ltd; State Grid Corp of China SGCC
Current assignee: Chongqing Chuan Dong Power Group Ltd; State Grid Corp of China SGCC
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-03-31
Anticipated expiration: 2039-12-06
Also published as: CN110943404B

Abstract

The invention provides a temporary fixing device for a drainage wire, which comprises a first fixing arm and a second fixing arm, wherein the head of the first fixing arm is used for clamping a conducting wire, the head of the second fixing arm is used for clamping the drainage wire, the tail of the first fixing arm is connected with the tail of the second fixing arm, sleeves are respectively inserted into the tail of the first fixing arm and the tail of the second fixing arm, then the sleeves are locked by screws, a tooth socket meshing structure is arranged on the two sleeves, when rocking arms on the first fixing arm and the second fixing arm rock forwards, a clamping opening is reduced to clamp the electric wire, when the rocking arms are forced backwards, a gear is released, and the clamping opening is opened. The invention has the advantages of convenient use, improved working efficiency, improved safety in the live construction process and the like.

Description

Temporary drainage wire fixing device

Technical Field

The invention relates to electric power construction equipment, in particular to a temporary fixing device for a drainage wire.

Background

At present, the work related to connecting a lead wire in live working is more, and accounts for more than half of the total work task. In the process of lapping the drainage wire in daily live working, the insulating bucket arm vehicle lifts off and is shielded in an insulating mode after arriving at a site, then the insulating bucket arm vehicle descends to take a first-phase wire and lifts off for lapping, then the insulating bucket arm vehicle descends to take a second-phase wire and lifts off for lapping, then the insulating bucket arm vehicle descends to take a third-phase wire and lifts off for lapping, and finally the shielding is removed and the insulating bucket arm vehicle is taken back. Therefore, the three-phase drainage wire is lapped for 6 times on average, the drainage wire is taken up and down in the operation process and passes through a power grid, and the drainage wire is likely to fall off due to the swing of the drainage wire, so that the accidents of single-phase grounding, interphase short circuit and the like are caused, the construction safety is influenced, the operation time is long, and the working efficiency is low. When the existing ground potential insulating rod operation method is used for connecting and disconnecting the drainage wire, the drainage wire is not fixed well or cannot be fixed well, swinging or bouncing can be caused to cause insufficient safety distance, in addition, a bypass lead flow or a cable needs to be taken measures to support and fix during third type of load operation of live operation, and a live body and a grounding body which are related to insufficient safety distance need to be shielded, so that the safety risk is large, and the working efficiency is lower.

Disclosure of Invention

The invention provides a temporary drainage wire fixing device, aiming at the problems of unsafe construction, long operation time and low working efficiency when a drainage wire is connected and a bypass drainage wire is supported and fixed during bypass operation in the existing live-line operation.

In order to achieve the purpose, the invention adopts the following technical scheme:

a temporary drainage wire fixing device comprises a first fixing arm and a second fixing arm, wherein the head of the first fixing arm is used for clamping a wire, the head of the second fixing arm is used for clamping a drainage wire, and the tail of the first fixing arm is connected with the tail of the second fixing arm; the first fixing arm and the second fixing arm comprise a main fixing rod and a pair of main fixing rods with hook-shaped headsThe sliding block is of a hollow structure, is sleeved on the main fixing rod and can relatively slide along the main fixing rod, the auxiliary fixing rod is fixedly connected with the sliding block, and the head of the auxiliary fixing rod corresponds to the head of the main fixing rod to form a clamping port for clamping a lead or a drainage wire together; the first fixing arm and the second fixing arm comprise rocker arms, gears, gear shifting rods and first springs, and the rocker arms are

The opening end of the rocker arm is inserted at two sides of the sliding block and connected with the sliding block through a rotating pin, the gear is supported on the rotating pin and arranged in the hollow part of the sliding block, the back of the main fixing rod is provided with teeth and meshed with the gear to form a gear tooth rod structure, one end of the gear shifting rod is hinged on the rocker arm, the middle of the gear shifting rod is provided with a first spring, the teeth arranged at the other end of the gear shifting rod are meshed with the gear under the tensioning action of the first spring, and when the rocker arm is rotated towards the head direction of the main fixing rod, the gear shifting rod shifts the gear to rotate forwards to drive the head of the auxiliary fixing rod to approach towards the head of the main fixing rod so as to clamp a lead or a drainage wire; the first fixing arm and the second fixing arm both comprise a reverse limiting block, a second spring and a positioning pin, the reverse rotation limiting block is rotatably hinged in the sliding block and is pressed against the gear of the gear under the action of the second spring, the positioning pin is arranged on one side of the reverse rotation limiting block, when the gear is subjected to reverse rotation torque, the positioning pin limits the rotation of the reverse rotation limiting block, thereby limiting the reverse rotation of the gear, when the rocker arm is rotated towards the tail direction of the main fixed rod, and the included angle theta between the rocker arm and the main fixed rod is smaller than a certain angle, the rocker arm props against the tail part of the reverse rotation limiting block to enable the reverse rotation limiting block to rotate, the head part of the reverse rotation limiting block is separated from the gear, meanwhile, the middle bulge of the reverse rotation limiting block jacks up the gear shifting lever, so that the gear shifting lever is separated from the gear.

Further, a plurality of dogteeth have been arranged to the afterbody of first fixed arm, the afterbody of second fixed arm arranged with a plurality of recesses of dogtooth matched with, first fixed arm with the second fixed arm with the dogtooth inserts the mode of recess is rotationally not linked together, the dogtooth size equals and circumference equipartition, the recess size equals and circumference equipartition, the afterbody of first fixed arm with the afterbody of second fixed arm still is in the same place through the fix with screw. The produced effect is, can be with the mode of a plurality of different contained angle angles between first fixed arm and the second fixed arm, the protruding tooth inserts the recess, that is, the contained angle is adjustable between first fixed arm and the second fixed arm to first fixed arm and the second fixed arm after the certain contained angle of constitution can bear great pulling force.

Preferably, the angle fixing block comprises a first socket and a second socket which form a certain included angle, the first socket is used for being inserted into the first fixing arm and fixed by a screw, and the second socket is used for being inserted into the second fixing arm and fixed by a screw. The first fixing arm and the second fixing arm are connected very simply and quickly, and work efficiency is improved.

Further, the first and second sockets are arranged at a right angle. The wiring operation is more convenient.

Generally, a 40 cm-length power frequency withstand voltage test of insulating materials between the head of the first fixing arm and the head of the second fixing arm pressurizes 45kV withstand voltage for 1 minute without breakdown, flashover and heating, and a leakage current test pressurizes 8kV withstand voltage for 15 minutes, and the leakage current is less than 0.5 mA.

Preferably, the main fixing rod is made of glass fiber. The glass fiber has good insulating property and tensile property, and is an ideal material for manufacturing the insulating section.

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

1. the working efficiency is improved. By adopting the device, the drainage wire can be temporarily fixed on the wire at one time, the process of taking the drainage wire up and down for many times is avoided, the device is very simple to operate, the drainage wire can be tightly gripped only by shaking the rocker arm, the rocker arm is pulled to a certain position leftwards, the drainage wire can be released, and the average time of the work of lapping the drainage wire with electricity after the temporary drainage wire fixing device is developed is reduced by more than 10 minutes.

2. The construction process is optimized, and the safety in live working is improved. Before the temporary drainage wire fixing device is not used, the drainage wire is taken up and down in the operation process and passes through a power grid, and the drainage wire swings to possibly cause falling, so that single-phase grounding, interphase short circuit and other accidents are caused. In the third type live working load operation, before the drainage wire fixing device is not used, a plurality of parts need to be insulated and shielded during operation, the labor intensity and the safety risk of operators are high, the fixing device adopts an insulating material, the drainage wire is physically supported and suspended, wind deflection swinging is prevented, and the like, and the insulation between a live conductor and a grounding body is electrically achieved, so that part of related insulation shielding is reduced, the flow is optimized, and the safety is improved.

As a person skilled in the art in the field of electric power construction, the cured operation flow is found out, the problem is found out, the inertial thinking is skipped, the problem is not easy to happen, and the best technical scheme for solving the problem is found, so that the method has good technical effect, creativity and popularization value.

Drawings

Fig. 1 is a schematic structural diagram of a first fixing arm according to the present invention.

FIG. 2 is a schematic diagram of a structure according to the present invention.

Fig. 3 is another schematic structural diagram of the present invention.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in figure 2, the invention provides a temporary drainage wire fixing device, which comprises a first fixing arm 1 and a second fixing arm 2, wherein the head part of the first fixing arm 1 is used for clamping a wire, the head part of the second fixing arm 2 is used for clamping a drainage wire, the tail part of the first fixing arm 1 is connected with the tail part of the second fixing arm 2, sleeves 4 are respectively inserted into the tail part of the first fixing arm 1 and the tail part of the second fixing arm 2, then the sleeves are locked by screws, a tooth space meshing structure shown in figure 2 is arranged on the two sleeves 4, so that the first fixing arm 1 and the second fixing arm 2 are meshed together, then the two sleeves 4 are fixed by screws, convex teeth are equal in size and are circumferentially and uniformly distributed, grooves are equal in size and are circumferentially and uniformly distributed, the tail part of the first fixing arm and the tail part of the second fixing arm are further fixed together by screws, so that the first fixing arm 1 and the second fixing arm 2 can be fixed into different included angles, and the adjustment and the use are very convenient. The structure of the sleeve 4 can also be directly made into an integral structure with the first fixing arm 1 without using the sleeve 4, and the other sleeve 4 and the second fixing arm 2 are integrally arranged, so that the first fixing arm 1 and the second fixing arm 2 can be directly snapped and fixed together. As shown in fig. 3, fig. 3 is an exploded view of a connection form of the tail portions of the first fixing arm 1 and the second fixing arm 2, the angle fixing block 3 includes a first socket 31 and a second socket 32 which form an included angle, the first fixing arm 1 is inserted into the first socket 31 and fixed by a screw, and the second fixing arm 2 is inserted into the second socket 32 and fixed by a screw. The first insertion hole 31 and the second insertion hole 32 of the angle fixing block 3 may be perpendicular or at other angles.

As shown in fig. 1-3, the first fixing arm 1 and the second fixing arm 2 have substantially the same structure, and both include a main fixing rod 11 with a hook-shaped head, an auxiliary fixing rod 13 and a sliding block 12, the sliding block 12 is of a hollow structure, the sliding block 12 is sleeved on the main fixing rod 11 and can slide relatively along the main fixing rod 11, the auxiliary fixing rod 13 is fixedly connected with the sliding block 12, and the head of the auxiliary fixing rod 13 corresponds to the head of the main fixing rod 11 to form a clamping opening for clamping a wire or a drainage wire; the first fixing arm 1 and the second fixing arm 2 both comprise a rocker arm 14, a gear 15, a gear shift lever 16 and a first spring 17, the rocker arm 14 being in the shape of a rocker arm

The opening end of a rocker arm 14 is inserted at two sides of the sliding block 12 and connected with the sliding block 12 through a rotating pin, a gear 15 is supported on the rotating pin and arranged in the hollow part of the sliding block 12, the back of a main fixing rod 11 is provided with teeth and meshed with the gear 15 to form a gear tooth rod structure, one end of a gear shift lever 16 is hinged on the rocker arm 14, the middle of the gear shift lever 16 is provided with a first spring 17, under the tensioning action of the first spring 17, the teeth arranged at the other end of the gear shift lever 16 are meshed with the gear 15, when the rocker arm 14 is rotated towards the head direction of the main fixing rod 11, the gear shift lever 16 shifts the gear 15 to rotate forwards, and the head of an auxiliary fixing rod 13 is driven to approach towards the head of the main fixing rod 11 to clamp; the first fixing arm 1 and the second fixing arm 2 both comprise a reverse rotation limiting block 18, a second spring 19 and a positioning pin 10, the reverse rotation limiting block 18 is rotatably hinged inside the sliding block 12, the reverse rotation limiting block 18 is abutted against teeth of the gear 15 under the action of the second spring 19, the positioning pin 10 is arranged on one side of the reverse rotation limiting block 18, when the gear 15 is subjected to reverse rotation torque, the positioning pin 10 limits the rotation of the reverse rotation limiting block 18, so that the reverse rotation of the gear 15 is limited, when the rocker arm 14 is rotated towards the tail part of the main fixing rod 11, and an acute included angle theta between the rocker arm 14 and the main fixing rod 11 is smaller than a certain angle, the rocker arm 14 is abutted against the tail part of the reverse rotation limiting block 18 to rotate, the head part of the reverse rotation limiting block 18 is separated from the gear 15, meanwhile, a middle bulge of the reverse rotation limiting block 18 is abutted against the gear shift lever 16, so that the gear shift lever 16 is separated from the gear 15, and an insulating The test has no breakdown, flashover and heating in minutes, the leakage current test is pressurized to 8kV, the voltage is resisted, the leakage current is less than 0.5mA in 15 minutes, and the main fixing rod is made of glass fiber.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A temporary fixing device for drainage thread is characterized in that,

the drainage wire fixing device comprises a first fixing arm (1) and a second fixing arm (2), wherein the head of the first fixing arm (1) is used for clamping a wire, the head of the second fixing arm (2) is used for clamping a drainage wire, and the tail of the first fixing arm (1) is connected with the tail of the second fixing arm (2);

the first fixing arm (1) and the second fixing arm (2) respectively comprise a main fixing rod (11) with a hook-shaped head, an auxiliary fixing rod (13) and a sliding block (12), the sliding block (12) is of a hollow structure, the sliding block (12) is sleeved on the main fixing rod (11) and can relatively slide along the main fixing rod (11), the auxiliary fixing rod (13) is fixedly connected with the sliding block (12), and the head of the auxiliary fixing rod (13) corresponds to the head of the main fixing rod (11) to form a clamping port for clamping a lead or a drainage wire;

first fixed arm (1) with second fixed arm (2) all include rocking arm (14), gear (15), gear driving lever (16) and first spring (17), rocking arm (14) are and are

The opening end of the rocker arm (14) is inserted into two sides of the sliding block (12) and connected with the sliding block (12) through a rotating pin, the gear (15) is supported on the rotating pin and arranged in the hollow part inside the sliding block (12), the back of the main fixing rod (11) is provided with teeth and meshed with the gear (15) to form a gear-rod structure, one end of the gear shifting rod (16) is hinged to the rocker arm (14), the middle of the gear shifting rod (16) is provided with a first spring (17), under the tensioning action of the first spring (17), the teeth arranged at the other end of the gear shifting rod (16) are meshed with the gear (15), when the rocker arm (14) is rotated towards the head direction of the main fixing rod (11), the gear shifting rod (16) shifts the gear (15) to rotate forwards to drive the head of the auxiliary fixing rod (13) to approach towards the head of the main fixing rod (11) to clamp a guide line or guide line A wire;

the first fixing arm (1) and the second fixing arm (2) both comprise a reverse rotation limiting block (18), a second spring (19) and a positioning pin (10), the reverse rotation limiting block (18) is rotatably hinged inside the sliding block (12), the reverse rotation limiting block (18) is abutted against the teeth of the gear (15) under the action of the second spring (19), the positioning pin (10) is arranged on one side of the reverse rotation limiting block (18), when the gear (15) is subjected to reverse rotation torque, the positioning pin (10) limits the reverse rotation limiting block (18) to rotate so as to limit the gear (15) to reverse, when the rocker arm (14) is rotated towards the tail direction of the main fixing rod (11), and when an acute angle theta between the rocker arm (14) and the main fixing rod (11) is smaller than a certain angle, the rocker arm (14) is abutted against the tail of the reverse rotation limiting block (18) to rotate, the head of the reverse rotation limiting block (18) is separated from the gear (15), and meanwhile, the middle protrusion of the reverse rotation limiting block (18) jacks up the gear shift lever (16), so that the gear shift lever (16) is separated from the gear (15).

2. The temporary drainage wire fixing device according to claim 1, wherein a plurality of convex teeth are arranged at the tail part of the first fixing arm (1), a plurality of grooves matched with the convex teeth are arranged at the tail part of the second fixing arm (2), the first fixing arm and the second fixing arm are non-rotatably connected together in a manner that the convex teeth are inserted into the grooves, the convex teeth are equal in size and are circumferentially and uniformly distributed, the grooves are equal in size and are circumferentially and uniformly distributed, and the tail part of the first fixing arm and the tail part of the second fixing arm are further fixed together through screws.

3. The temporary drainage wire fixing device according to claim 1, further comprising an angle fixing block (3), wherein the angle fixing block (3) comprises a first socket (31) and a second socket (32) which are at an included angle, the first socket (31) is used for inserting the first fixing arm (1) and fixing with screws, and the second socket (32) is used for inserting the second fixing arm (2) and fixing with screws.

4. A temporary drainage wire fixing device as claimed in claim 3, wherein the first insertion opening (31) and the second insertion opening (32) are arranged at a right angle.

5. The temporary drainage wire fixing device as claimed in claim 1, wherein the insulating material 40cm length power frequency withstand voltage test between the head of the first fixing arm and the head of the second fixing arm is pressurized with 45kV withstand voltage for 1 minute without puncture and flashover, and the leakage current test is pressurized with 8kV withstand voltage for 15 minutes, and the leakage current is less than 0.5 mA.

6. The temporary drainage wire fixing device of claim 5, wherein the main fixing rod is made of glass fiber.