CN112886521A

CN112886521A - Power line cross arm

Info

Publication number: CN112886521A
Application number: CN202110115264.1A
Authority: CN
Inventors: 陈嘉静; 王小友
Original assignee: Xuzhou Changwu Intelligent Technology Co ltd
Current assignee: Hebei Kaitian Electric Power Equipment Co Ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-06-01
Anticipated expiration: 2041-01-28
Also published as: CN112886521B

Abstract

The invention relates to a power line cross arm, which comprises two groups of E-shaped frames, three groups of locking devices, a top end connecting device and a lower end locking device, wherein the E-shaped frames are provided with two groups, the three groups of locking devices are connected between the two groups of E-shaped frames which are oppositely arranged, the top end connecting device is arranged above the locking devices, and the lower end locking device is arranged below the locking devices, so that the problems that the top of the existing cross arm is usually an umbrella-shaped structure fixed by a plurality of bolts, the installation of the cross arm is operated at high altitude, the installation is very complicated due to excessive parts, and working errors are easy to occur can be solved, the problem that the fixation of the existing cross arm is usually fixed by a hoop, then the cross arm is installed on the hoop, and finally other parts are installed on the cross arm, a complete cross arm system is finally formed, the installation of the parts is increased in installation difficulty, and when the parts are left out and not carried, the utility pole is got the problem that can be very troublesome down.

Description

Power line cross arm

Technical Field

The invention relates to power line manufacturing, in particular to a power line cross arm.

Background

An electric power line refers to a line used to transmit electric energy between a power plant, a substation, and an electric power consumer. The power supply system is an important component of the power supply system and is used for carrying and distributing electric energy, a power line can not be built away from a telegraph pole, the telegraph pole is necessarily provided with a cross arm in a matched mode, the cross arm is an angle iron transversely fixed to the top of the telegraph pole, and a porcelain bottle is arranged on the cross arm and used for supporting an overhead wire. The cross arm is an important component in a tower and is used for installing insulators and hardware fittings so as to support a conducting wire and a lightning conductor and keep a certain safety distance according to regulations. The existing power line cross arm has the following problems.

1. The top of the existing cross arm is usually of an umbrella-shaped structure fixed through a plurality of bolts, and the cross arm is installed at high altitude, so that the installation is very complicated due to excessive parts, and working errors are easy to occur.

2. The conventional cross arm is usually fixed by using a hoop, then the cross frame is arranged on the hoop, and finally other parts are arranged on the cross frame to finally form a complete cross arm system.

Disclosure of Invention

The technical scheme adopted by the invention to solve the technical problem is as follows: the utility model provides an electric power circuit cross arm, includes E shape frame, locking device, top connecting device, lower extreme locking device, E shape frame has two sets ofly, two sets of relative settings be connected with three locking device of group between the E shape frame, the locking device top is provided with top connecting device, and the locking device below is provided with lower extreme locking device, wherein:

the locking device comprises a left locking block, a right locking block and a fixing bolt, the right end of the left E-shaped frame is connected with three groups of left locking blocks, the left end of the right E-shaped frame is connected with three groups of right locking blocks, the left locking block and the right locking block are in omega-shaped structures with openings facing each other, and the left locking block and the right locking block which correspond to each other in position are connected through the fixing bolt; during specific work, the left E-shaped frame plays a role in connecting the left locking block, the right E-shaped frame plays a role in connecting the right locking block, the fixing bolt plays a role in connecting the left locking block and the right locking block, and the left locking block and the right locking block can be fixed on a telegraph pole after being locked through the fixing bolt.

The top end connecting device comprises mounting plates, connecting columns, horizontal plates and a first threaded column, the mounting plates are symmetrically connected at the positions, close to the top ends, of the ends, far away from each other, of the two groups of E-shaped frames on the left side and the right side, the upper end of each group of mounting plates is rotatably connected with the connecting columns, the horizontal plates are jointly mounted at the upper ends of the connecting columns, and the first threaded column is mounted in the center of the upper end of each horizontal plate; during specific work, the first threaded column plays a role in installing the insulator and erecting the electric wire.

The lower end locking device comprises a connecting plate, a first column, a second column, a left compression plate, a right compression plate, compression bolts and a second threaded column, the connecting plate is mounted at the lower end of the left E-shaped frame, the first column and the second column are arranged on the connecting plate in parallel, the first column is slidably arranged through the connecting plate and connected with the left compression plate, threads are arranged on the second column, the second column threads are arranged through the connecting plate and rotatably connected with the left compression plate in a 7-shaped structure, the second column and the connecting plate are in threaded connection, the right end of the left compression plate is symmetrically provided with the right compression plate in an inverted 7-shaped structure, the left compression plate and the right compression plate are connected through a plurality of groups of compression bolts, and the left and right sides of the upper ends of the left compression plate and the right compression plate are symmetrically provided with; during specific work, the first column plays a role of a limiting left pressure plate, the second column rotates to drive the left pressure plate to move downwards, a function of adjusting the vertical position of the left pressure plate is played, the positions of the left pressure plate and the right pressure plate can be adjusted by rotating the pressure bolt, the left pressure plate and the right pressure plate can be fixed on a wire column, and the second threaded column plays a role of installing an insulator and erecting a wire.

As a preferred technical scheme of the invention, the inner walls of the upper half parts of the left locking block and the right locking block are provided with transverse threads, and the inner walls of the lower half parts of the left locking block and the right locking block are provided with longitudinal threads; the effect that left latch segment and right latch segment are fixed on the wire pole has been strengthened to the screw thread that transversely sets up and the screw thread that vertically sets up, and wherein transversely sets up the screw thread and can prevent that left latch segment and right latch segment from sliding from top to bottom, and the screw thread that vertically sets up can prevent that left latch segment and right latch segment from taking place to rotate around the wire pole.

As a preferred technical scheme of the invention, the outer walls of the upper ends and the lower ends of the left locking block and the right locking block are provided with rubber blocks; when left latch segment and right latch segment are fixed on the wire pole, the rubber block is in the state of compressing tightly, and the rubber block had both increased the fixed effect of left latch segment and right latch segment, had played sealed effect again, can prevent the erosion of rainwater to left latch segment and right latch segment inner wall.

According to a preferred technical scheme, butt joint grooves matched with connecting columns in shape are symmetrically formed in the lower end of a horizontal plate, a cylindrical groove is formed in the middle of each group of connecting columns, the top of each cylindrical groove is connected with a circular truncated cone through a pulling spring, the radius of the circular truncated cone is gradually increased from top to bottom, a plurality of groups of T-shaped clamping blocks are uniformly abutted to the outer wall of the circular truncated cone along the circumferential direction, a plurality of groups of clamping grooves matched with the T-shaped clamping blocks are formed in the horizontal plate on the outer wall of each butt joint groove, each group of T-shaped clamping blocks is connected with the outer wall of the corresponding cylindrical groove through the clamping spring, pulling columns in sliding fit with the cylindrical grooves are installed at the lower ends of the circular truncated cones, one ends, far away from each other, of the two; the pulling block is pulled downwards, the round platform can be pulled downwards through the pulling column, under the action of the clamping spring, the T-shaped clamping block contracts inwards, the connecting column is inserted into the butt joint groove, the pulling block is not pulled any more, under the action of the pulling spring, the round platform moves upwards, due to the fact that the T-shaped clamping block is abutted to the outer wall of the butt joint groove, the T-shaped clamping block cannot move outwards, the clamping spring is gradually compressed, the connecting column is rotated, when the T-shaped clamping block corresponds to the position of the clamping groove, under the action of the clamping spring, the T-shaped clamping block is clamped into the clamping groove, the effect of fixing the horizontal plate and the connecting column is achieved, when the mounting plate is disassembled, only the pulling block needs to be pulled downwards, the round platform can be pulled downwards under the action of the pulling column, at the moment, the pulling block moves inwards to leave the clamping groove under the action of the clamping spring, and the horizontal plate.

As a preferred technical solution of the present invention, the pulling force of the pulling spring is greater than the pulling force of the garter spring.

As a preferred technical scheme of the invention, the upper end of the first column is provided with a round cover, and the upper end of the second column is provided with a rotating handle; the round cover plays a role in preventing the first column from sliding off, and the rotating handle is rotated to play a role in driving the second column to rotate.

As a preferred technical scheme of the invention, the head end of the compression bolt is of a round table structure, and one side of the compression bolt, which is close to the right compression plate, is sleeved with a rubber sleeve; the round platform structure plays a guiding role, the compression bolt conveniently penetrates through the right compression plate, and the rubber sleeve plays a role in limiting the compression bolt.

Compared with the prior art, the invention has the following advantages:

1. the locking devices are fixed in position in a multi-point fixing mode, so that the fixing effect of the cross arm on the telegraph pole is better, and the locking devices are connected through the E-shaped frames to be integrated, so that the installation process of the cross arm is simplified, and the manual installation cost is saved;

2. according to the invention, the inner walls of the upper half parts of the left locking block and the right locking block are provided with transverse threads, and the inner walls of the lower half parts of the left locking block and the right locking block are provided with longitudinal threads, so that the left locking block and the right locking block cannot slide down or rotate after being fixed, and the mounting effect of the electric cross arm is enhanced;

3. according to the invention, through the arranged top end connecting device, the horizontal plate can be quickly installed and disassembled only by rotating the connecting column and pulling the pulling block, so that the inspection and maintenance of the erected power line are facilitated.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a first perspective of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a perspective view of the present invention from a second perspective;

FIG. 4 is an enlarged view of the invention at B in FIG. 3;

FIG. 5 is a perspective view from a third perspective in accordance with the present invention;

FIG. 6 is a schematic view of the connecting column of the present invention.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 6.

The utility model provides an electric power circuit cross arm, includes E shape frame 1, locking device 2, top connecting device 3, lower extreme locking device 4, E shape frame 1 has two sets ofly, two sets of relative settings be connected with three locking device 2 of group between the E shape frame 1, locking device 2 top is provided with top connecting device 3, and locking device 2 below is provided with lower extreme locking device 4, wherein:

the locking device 2 comprises a left locking block 21, a right locking block 22 and a fixing bolt 23, the right end of the left E-shaped frame 1 is connected with three groups of left locking blocks 21, the left end of the right E-shaped frame 1 is connected with three groups of right locking blocks 22, the left locking block 21 and the right locking block 22 are of omega-shaped structures with openings facing each other, the left locking block 21 and the right locking block 22 corresponding to the left locking block 21 are connected through the fixing bolt 23, the upper half inner walls of the left locking block 21 and the right locking block 22 are provided with transverse threads, and the lower half inner walls of the left locking block 21 and the right locking block 22 are provided with longitudinal threads; the effect of fixing the left locking block 21 and the right locking block 22 on the telegraph pole is enhanced by the aid of the transversely arranged threads and the longitudinally arranged threads, the transversely arranged threads can prevent the left locking block 21 and the right locking block 22 from sliding up and down, the longitudinally arranged threads can prevent the left locking block 21 and the right locking block 22 from rotating around the telegraph pole, rubber blocks are arranged on the outer walls of the upper end and the lower end of the locking block 21 and the right locking block 22, when the left locking block 21 and the right locking block 22 are fixed on the telegraph pole, the rubber blocks are in a pressing state, the rubber blocks not only increase the fixing effect of the left locking block 21 and the right locking block 22, but also play a role in sealing, and can prevent rainwater from eroding the inner walls of the left locking block 21 and the right locking block 22; during specific work, the left E-shaped frame 1 plays a role in connecting the left locking block 21, the right E-shaped frame 1 plays a role in connecting the right locking block 22, the fixing bolt 23 plays a role in connecting the left locking block 21 and the right locking block 22, and the left locking block 21 and the right locking block 22 can be fixed on a telegraph pole after being locked through the fixing bolt 23.

The top end connecting device 3 comprises a mounting plate 31, connecting columns 32, horizontal plates 33 and a threaded column 34, two groups of E-shaped frames 1 on the left side and the right side are symmetrically connected with the mounting plate 31 at the positions close to the top ends and far away from each other, the upper end of each group of mounting plates 31 is rotatably connected with the connecting column 32, the upper end of each connecting column 32 is jointly provided with the horizontal plate 33, the lower end of each horizontal plate 33 is symmetrically provided with a butt joint groove matched with the connecting column 32 in shape, the middle part of each group of connecting columns 32 is provided with a cylindrical groove 321, the top of each cylindrical groove 321 is connected with a circular truncated cone 323 through a pulling spring 322, the radius of the circular truncated cone 323 is gradually increased from top to bottom, the outer wall of the circular truncated cone 323 is uniformly butted with a plurality of T-shaped clamping blocks 324 along the circumferential direction, a plurality of clamping grooves matched with the T-shaped clamping blocks 324, the pulling force of the pulling spring 322 is greater than that of the clamping spring 328, the pulling columns 325 in sliding fit with the cylindrical grooves 321 are installed at the lower ends of the round platforms 323, one ends of the two groups of pulling columns 325, which are far away from each other, are symmetrically connected with pulling blocks 326, the pulling grooves 327 in fit with the pulling columns 325 are formed in the upper and lower parts of the outer wall of the connecting column 32, the pulling blocks 326 are pulled downwards, the round platforms 323 can be pulled downwards through the pulling columns 325, the T-shaped clamping blocks 324 contract inwards under the action of the clamping springs 328, the connecting column 32 is inserted into the butt-joint groove, the pulling blocks 326 are not pulled any more, the round platforms 323 move upwards under the action of the pulling springs 322, the T-shaped clamping blocks 324 cannot move outwards due to the interference of the outer wall of the butt-joint groove, the clamping springs 328 compress gradually, the connecting column 32 rotates, when the T-shaped clamping blocks 324 are correspondingly clamped in the slot positions, the T-shaped clamping blocks 324 are clamped into the, when the mounting plate 31 is disassembled, the round table 323 can be pulled downwards under the action of the pulling column 325 only by pulling the pulling block 326 downwards, at the moment, the pulling block 326 moves inwards to leave the clamping groove under the action of the clamping spring 328, the mounting plate 31 can be separated from the connecting column 32 by pulling the mounting plate 31 upwards, and the first threaded column 34 is mounted at the center of the upper end of the horizontal plate 33; during specific work, the first threaded column 34 plays a role in installing insulators and erecting electric wires.

The lower end locking device 4 comprises a connecting plate 41, a first column 42, a second column 43, a left pressure plate 44, a right pressure plate 45, a pressure bolt 46 and a second threaded column 47, the connecting plate 41 is installed at the lower end of the left E-shaped frame 1, the first column 42 and the second column 43 are arranged on the connecting plate 41 in parallel, the first column 42 is slidably arranged on the connecting plate 41 in a penetrating manner and connected with the left pressure plate 44, threads are arranged on the second column 43, the second column 43 is rotatably connected with the left pressure plate 44 of a 7-shaped structure in a penetrating manner through the connecting plate 41, the second column 43 is in threaded connection with the connecting plate 41, a round cover 421 is installed at the upper end of the first column 42, and a rotating handle 422 is installed at the upper end of the second column 43; the round cover 421 plays a role in preventing the first column 42 from slipping off, the rotating handle 422 plays a role in driving the second column 43 to rotate, the right end of the left pressure plate 44 is symmetrically provided with the right pressure plate 45 with a reverse 7-shaped structure, the left pressure plate 44 and the right pressure plate 45 are connected through a plurality of groups of pressure bolts 46, the head end of each pressure bolt 46 is of a circular truncated cone structure, one side, close to the right pressure plate 45, of each pressure bolt 46 is sleeved with a rubber sleeve 461, the circular truncated cone structure plays a guiding role, the pressure bolts 46 can conveniently penetrate through the right pressure plate 45, the rubber sleeves 461 play a role in limiting the pressure bolts 46, and the left and right sides of the upper ends of the left pressure plate 44 and the right pressure plate 45 are symmetrically provided with second threaded columns 47; during specific work, a column 42 plays a role of a limiting left pressure plate 44, a column 43 rotates to drive the left pressure plate 44 to move downwards, the effect of adjusting the vertical position of the left pressure plate 44 is achieved, the positions of the left pressure plate 44 and the right pressure plate 45 can be adjusted by rotating the pressure bolt 46, the left pressure plate 44 and the right pressure plate 45 can be fixed on a wire column, a threaded column 47 plays a role in installing an insulator, and a wire is erected.

During specific work, the left locking block 21 and the right locking block 22 are fixed on a telegraph pole through the fixing bolt 23, the pulling block 326 is pulled downwards, the round platform 323 can be pulled downwards through the pulling column 325, the T-shaped clamping block 324 contracts inwards under the action of the clamping spring 328, the connecting column 32 is inserted into the butt joint groove, the pulling block 326 is not pulled any more, the round platform 323 moves upwards under the action of the pulling spring 322, the T-shaped clamping block 324 cannot move outwards due to the interference of the outer wall of the butt joint groove, the clamping spring 328 is gradually compressed, the connecting column 32 is rotated, when the T-shaped clamping block 324 corresponds to the clamping groove position, the T-shaped clamping block 324 is clamped into the clamping groove under the action of the clamping spring 328, the effect of fixing the mounting plate 31 and the connecting column 32 is achieved, the second threaded column 47 achieves the effect of mounting an insulator and erecting an electric wire, the positions of the left compression plate 44 and the right compression plate 45 are adjusted through the rotation of the compression bolt 46, the left compression plate 44 and the right compression plate 45 can be fixed on a wire column, and the second threaded column 47 plays a role in installing insulators and erecting wires.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electric power circuit cross arm, includes E shape frame (1), locking device (2), top connecting device (3), lower extreme locking device (4), its characterized in that: e shape frame (1) has two sets ofly, two sets of relative settings be connected with three locking device of group (2) between E shape frame (1), locking device (2) top is provided with top connecting device (3), and locking device (2) below is provided with lower extreme locking device (4), wherein:

the locking device (2) comprises a left locking block (21), a right locking block (22) and a fixing bolt (23), the right end of the left E-shaped frame (1) is connected with three groups of left locking blocks (21), the left end of the right E-shaped frame (1) is connected with three groups of right locking blocks (22), the left locking block (21) and the right locking block (22) are of omega-shaped structures with openings facing each other, and the left locking block (21) and the right locking block (22) corresponding to the positions are connected through the fixing bolt (23);

the top end connecting device (3) comprises a mounting plate (31), connecting columns (32), horizontal plates (33) and a first threaded column (34), the mounting plates (31) are symmetrically connected at positions, close to the top ends, of two groups of E-shaped frames (1) on the left side and the right side, the connecting columns (32) are rotatably connected at the upper ends of the mounting plates (31), the horizontal plates (33) are jointly mounted at the upper ends of the connecting columns (32), and the first threaded column (34) is mounted at the center of the upper ends of the horizontal plates (33);

the lower end locking device (4) comprises a connecting plate (41), a first column (42), a second column (43), a left pressing plate (44), a right pressing plate (45), a pressing bolt (46) and a second threaded column (47), the connecting plate (41) is installed at the lower end of the left E-shaped frame (1), the first column (42) and the second column (43) are arranged on the connecting plate (41) in parallel, the first column (42) penetrates through the connecting plate (41) in a sliding mode and is connected with the left pressing plate (44), threads are arranged on the second column (43), the second column (43) penetrates through the connecting plate (41) and is connected with the left pressing plate (44) in a 7-shaped structure in a rotating mode, the second column (43) and the connecting plate (41) are in threaded connection, the right pressing plate (45) in an inverted 7-shaped structure is symmetrically arranged on the left pressing plate (44), and the left pressing plate (44) and the right pressing plate (45) are connected through a plurality of groups of pressing bolts (46), no. two threaded columns (47) are symmetrically arranged on the left side and the right side of the upper ends of the left pressing plate (44) and the right pressing plate (45).

2. An electrical power line cross-arm as claimed in claim 1, wherein: the inner walls of the upper half parts of the left locking block (21) and the right locking block (22) are provided with transverse threads, and the inner walls of the lower half parts of the left locking block (21) and the right locking block (22) are provided with longitudinal threads.

3. An electrical power line cross-arm as claimed in claim 1, wherein: and rubber blocks are arranged on the outer walls of the upper ends and the lower ends of the left locking block (21) and the right locking block (22).

4. An electrical power line cross-arm as claimed in claim 1, wherein: the lower end of the horizontal plate (33) is symmetrically provided with butt joint grooves matched with the connecting columns (32) in shape, the middle part of each group of connecting columns (32) is provided with a cylindrical groove (321), the top of the cylindrical groove (321) is connected with a circular truncated cone (323) through a pulling spring (322), the radius of the circular truncated cone (323) is gradually increased from top to bottom, the outer wall of the circular truncated cone (323) is uniformly butted with a plurality of groups of T-shaped clamping blocks (324) along the circumferential direction, be provided with the multiunit on horizontal plate (33) of butt joint groove outer wall and the joint groove of T shape chucking piece (324) complex, every T shape chucking piece of group (324) all is connected with the cylinder groove (321) outer wall that corresponds the side through chucking spring (328), round platform (323) lower extreme is installed and is pulled post (325) with cylinder groove (321) sliding fit, one end symmetric connection each other is kept away from in two sets of pulling posts (325) has pulling piece (326), spliced pole (32) outer wall is seted up from top to bottom with pulling post (325) complex pulling groove (327).

5. An electrical power line cross-arm as claimed in claim 1, wherein: a round cover (421) is installed to first post (42) upper end, and rotation handle (422) is installed to No. two post (43) upper end.

6. An electrical power line cross-arm as claimed in claim 1, wherein: the head end of the pressing bolt (46) is of a circular truncated cone structure, and one side, close to the right pressing plate (45), of the pressing bolt (46) is sleeved with a rubber sleeve (461).