CN111952892A

CN111952892A - Electric wire conveying device

Info

Publication number: CN111952892A
Application number: CN202010833868.5A
Authority: CN
Inventors: 刘伟; 徐海松; 张晋华; 郭裕云; 林相元; 罗国有; 古限仰
Original assignee: Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2020-11-17

Abstract

The invention discloses a wire conveying device, and relates to the field of crossing construction of power lines. The electric wire conveying device comprises a fixing frame, a conveying pipe and a plurality of rolling pieces. The conveyer pipe set up in extend upwards on the mount, the electric wire can wear to locate in the conveyer pipe. The rolling pieces are arranged in the conveying pipe and are arranged along the length direction of the conveying pipe, the axis of each rolling piece is perpendicular to the axis of the conveying pipe, and the rolling pieces are in rolling contact with the electric wire. The invention provides the electric wire conveying device which is convenient, rapid, convenient, portable, safe and reliable, and has the advantages of no need of power failure, no need of professional installation, safety, convenience, rapidness, low cost and the like.

Description

Electric wire conveying device

Technical Field

The invention relates to the field of crossing construction of power lines, in particular to a wire conveying device.

Background

During the construction of power distribution networks, it is often the case that new low or high voltage wires must pass over already operating low voltage wires. If according to the conventional construction practice, the newly-built electric wire is pulled over the running low-voltage electric wire by using the pulling rope, the outer insulating skin of the running low-voltage electric wire is easily worn out in the wire pulling process, and the safety risk is generated. At present, electric power companies solve the problems by erecting an electrified spanning frame, and have the defects of complicated erecting steps, high cost, long time and necessity of erecting by professional people. Otherwise, the low-voltage line needs to be constructed after power failure, frequent power failure causes great complaints of users, the power supply reliability index of a power supply station is affected, and the power failure handling procedure is complicated. The invention provides a wire conveying device which is convenient and quick to install, safe and reliable, and has the advantages of no need of power failure, no need of professional installation, safety, convenience, quickness, low cost and the like.

In view of the above problems, it is desirable to develop a wire transportation device to solve the problems of complicated steps for setting up spanning type devices and frequent power failure during spanning type construction of power lines.

Disclosure of Invention

The invention aims to provide an electric wire conveying device.

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

an electric wire feeding device comprising:

a fixed mount;

the conveying pipe is arranged on the fixing frame and extends upwards, and the electric wire can penetrate through the conveying pipe;

the rolling pieces are arranged in the conveying pipe and are arranged along the length direction of the conveying pipe, the axis of each rolling piece is perpendicular to the axis of the conveying pipe, and the rolling pieces are in rolling contact with the electric wire.

Preferably, the rolling member comprises:

the fixed shaft is fixed inside the conveying pipe and is arranged on one side of the axis of the conveying pipe;

and the at least two balls are rotatably arranged on the fixed shaft, and the electric wire can be positioned between the two adjacent balls.

Preferably, the conveying pipe is an insulating rubber pipe with elasticity.

Preferably, the conveying pipe is provided with an opening, and the opening penetrates through the conveying pipe along the axial direction of the conveying pipe.

Preferably, the conveying pipe comprises a first pipe wall, a second pipe wall and a third pipe wall, the first pipe wall and the second pipe wall are quarter arcs, the third pipe wall is a semicircle, the first pipe wall and the second pipe wall are respectively connected with the third pipe wall through rotating shafts in a rotating mode, and the opening is formed between the arcs of the first pipe wall and the second pipe wall.

Preferably, the top end of the conveying pipe is bent, and a top end pipe orifice of the conveying pipe is arranged towards the horizontal direction.

Preferably, the electric wire conveying device further comprises a double ladder, the double ladder comprises a first supporting piece and a second supporting piece, the top ends of the first supporting piece and the second supporting piece are rotatably connected, one end of the fixing frame is rotatably connected with the top end of the first supporting piece, and the fixing frame can be switched between a working position and a storage position, wherein the working position is arranged at a straight angle with the first supporting piece, and the storage position is stacked on the first supporting piece.

Preferably, the herringbone ladder is made of insulated glass fiber reinforced plastics.

Preferably, the herringbone ladder comprises:

the first extending piece is arranged at one end of the first supporting piece in a sliding mode and can slide along the length direction of the first supporting piece;

the second extending piece is arranged at one end of the second support piece in a sliding mode and can slide along the length direction of the second support piece.

Preferably, the herringbone ladder comprises:

the first fastening screw is arranged on the first extending piece and can fasten and fix the first extending piece when the first extending piece slides to any position;

and the second fastening screw is arranged on the second extending piece and can fasten and fix the second extending piece when the second extending piece slides to any position.

The invention has the beneficial effects that:

the invention provides an electric wire conveying device. In the device, the conveying pipe is arranged on the fixing frame, so that the conveying pipe can be kept to extend linearly, and the difficulty in pushing the electric wire due to the bending of the conveying pipe is avoided. The height of the outlet of the conveying pipe is adjusted by an operator according to the height of the electric wire in the existing low-voltage line, and the conveyed electric wire can cross the electric wire in the existing low-voltage line. The conveying pipe is provided with a plurality of rolling parts, so that the electric wire can be quickly conveyed to the outlet, and the conveying difficulty caused by the friction force between the electric wire and the conveying pipe is prevented. The device can both easy to assemble, can make the electric wire cross over current low-voltage line safely under the circumstances that current low-voltage line does not cut off the power supply again, has convenient and fast advantage with low costs.

Drawings

Fig. 1 is a schematic structural view of an insulating support provided in a first embodiment of the present invention;

FIG. 2 is a schematic longitudinal sectional view of a conveying mechanism according to a first embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a conveying mechanism according to a first embodiment of the present invention;

fig. 4 is a schematic cross-sectional structure diagram of a conveying mechanism according to a second embodiment of the present invention.

1. A delivery pipe; 11. an electric wire; 12. a ball bearing; 13. a fixed shaft; 14. an opening; 15. a rotating shaft; 16. a first tube wall; 17. a second tube wall; 18. a third tube wall; 2. a fixed mount; 3. a herringbone ladder; 31. a first support member; 32. a first elongate member; 33. a second support member; 34. a second elongate member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

First embodiment

The present embodiment provides an electric wire feeding apparatus that can be used to span a newly built low-voltage or high-voltage electric wire over an already operating low-voltage electric wire. As shown in fig. 1, the wire feeding device includes a fixing frame 2, a feeding tube 1 and a plurality of rolling members. The conveying pipe 1 is arranged on the fixing frame 2 and can extend upwards, and the electric wire 11 can penetrate through the conveying pipe 1. A plurality of rolling parts are arranged in the conveying pipe 1 along the length direction of the conveying pipe 1, the axes of the rolling parts are vertical to the axis of the conveying pipe 1, and the rolling parts are in rolling contact with the electric wire 11.

When the electric wire conveying device is used, the fixing frame 2 can be supported on the ground or lifted by a worker, so that the top end of the conveying pipe 1 on the fixing frame 2 is positioned above the running low-voltage electric wire. Other personnel then advance the newly built wires into the duct 1 and extend the wires up the duct 1 to cross the already running low voltage wires.

Conveyer pipe 1 is fixed through mount 2, is favorable to keeping 1 sharp extensions of conveyer pipe, avoids conveyer pipe 1 bending to lead to electric wire 11 to impel the difficulty, and makes things convenient for operating personnel handheld and lift conveyer pipe 1, makes the export of conveyer pipe 1 exceed the low-voltage line that is using that needs to stride across. In the electric wire 11 relies on manpower propulsion conveyer pipe 1, a plurality of rolling members in conveyer pipe 1 and electric wire 11 rolling contact, greatly reduced the frictional force that electric wire 11 received, prevent that electric wire 11 from directly contacting with conveyer pipe 1, lead to electric wire 11 to be difficult to be promoted because frictional force is too big.

Further, as shown in fig. 2, the rolling member includes a fixed shaft 13 and a ball 12, the fixed shaft 13 is fixed inside the delivery pipe 1, and the ball 12 is rotatably disposed on the fixed shaft 13 so that the ball 12 can be in rolling contact with the electric wire 11 to reduce the friction force applied to the electric wire 11.

In order to avoid the difficulty of pushing caused by the bending of the electric wire 11 in the transmission process, two balls 12 may be disposed on the fixed shaft 13, the arc surfaces of the adjacent sides of the two balls 12 enclose a substantially V-shaped groove, and the electric wire 11 may be in the groove to avoid the bending of the electric wire 11 in the pushing process.

In other embodiments, a plurality of balls 12, for example, three or four balls 12, may be disposed on each fixed shaft 13, and the electric wire 11 may be conveyed between each two adjacent balls 12. To avoid the difficulty of pushing due to the large contact pressure between the wire 11 and the pipe 1 or the balls 12, the distance between the groove and the pipe wall may be larger than the diameter of the wire 11, so that the operator does not substantially contact the wire 11 with the pipe wall of the pipe 1 when pushing the wire 11.

It will be appreciated that the at least two balls 12 are only one embodiment of the rolling member, and in other embodiments the rolling member may be a roller having a receiving groove in the middle, the receiving groove in the middle being the path through which the electrical wire 11 passes.

Further, the conveying pipe 1 is an insulating rubber pipe having elasticity.

Since the wire feeding device is used without interruption of power, the material of the feeding tube 1 is preferably an insulating material. The insulating rubber tube has certain elasticity, can meet the use scenes of most of the use in the applicability, and is not easy to damage in the use and transportation process.

Preferably, the delivery pipe 1 is provided with an opening 14, and the opening 14 penetrates the delivery pipe 1 along the axial direction of the delivery pipe 1.

The other side of the low-voltage line in operation of the operator pulls the electric wire 11 to be conveyed out of the conveying pipe 1, in order to separate the electric wire 11 from the conveying pipe 1, an opening 14 needs to be arranged on one side of the conveying pipe 1 close to the electric wire 11, and in order to ensure that the electric wire 11 cannot be separated from the conveying pipe 1 in the conveying process, the opening 14 needs to be smaller than the diameter of the electric wire 11. Due to the elasticity of the duct 1, the electric wire 11 can be pulled out of the duct 1 at the opening 14.

Further, the top end of the conveying pipe 1 is bent, and the top end pipe orifice of the conveying pipe 1 is horizontally arranged.

The low voltage line in operation is higher, and the pole that exposes to ground is about 6.8 meters, and operating personnel need can reach this height with the help of the instrument and operate. If the electric wire 11 is allowed to fall freely from the nozzle, the direction is not controlled and the low-voltage line is easily touched. Therefore, the top end of the conveying pipe 1 is bent, the pipe opening is horizontally arranged, the falling direction of the electric wire 11 is controlled, the operation difficulty of operators is avoided, and the safety is improved.

In other embodiments, the horizontal part is provided with a gap, the conveying pipe 1 forms a semicircular space, the open conveying pipe 1 is favorable for conveying electric wires more conveniently, and the increase of friction force and the difficulty in conveying caused by the turning of the electric wires 11 in the conveying pipe 1 are prevented.

In order to further facilitate the use of an operator, the electric wire conveying device may further include a double ladder 3, the double ladder 3 includes a first supporting member 31 and a second supporting member 32 which are rotatably connected at the top ends, one end of the fixing frame 2 is rotatably connected with the top end of the first supporting member 31, and the fixing frame 2 can be switched between a working position which is arranged at a flat angle with the first supporting member 31 and a storage position which is stacked on the first supporting member 31. For an electric pole spanning a height of 6.8 m, the length of the fixing frame 2 and the length of the first supporting piece 31 are both 4.2 m. When the electric wire conveying device is used, the herringbone ladder 3 can be supported on the ground, and compared with the mode that an operator holds the fixing frame 2 by hands, the herringbone ladder 3 can be supported by the operator only in a stabilizing way, so that on one hand, the electric wire conveying device is more labor-saving in operation and more stable in support, and the problem that the electric wire conveying is influenced due to unstable holding of the fixing frame 2 can be avoided; on the other hand, the total length of the fixing frame 2 and the herringbone ladder 3 is longer, the height of the top end of the conveying pipe 1 can be increased, and the use requirement is met.

In order to avoid inconvenience in storage and transportation caused by increase of the size of the whole of the herringbone ladder 3 and the fixing frame 2, the fixing frame 2 is rotatably connected with the herringbone ladder 3, and the fixing frame 2 is folded by 180 degrees around the connecting part to reduce the total length. The fixing frame 2 and the herringbone ladder 3 are correspondingly provided with pins and holes for fixing positions, and the pins and the holes are used for fixing the fixing frame 2 and the herringbone ladder 3 in an unfolded state when in use.

Alternatively, the fixed frame 2 and the trestle ladder 3 may be detachably connected. When transporting and taking in, can pull down mount 2 by on the double ladder 3, fold mount 2 and double ladder 3 together, reduce size.

Exemplarily, the fixing frame 2 and the herringbone ladder 3 can be connected through fasteners such as bolts, and the like, so that the herringbone ladder is convenient to disassemble and low in cost.

Optionally, the fixing frame 2 can be connected with the double ladder 3 in a sliding mode, the fixing frame 2 and the double ladder 3 are correspondingly provided with a sliding rail and a sliding block which are matched with each other, and when the fixing frame 2 and the double ladder 3 are transported and stored, the fixing frame 2 and the double ladder 3 can be retracted in a sliding mode to reduce the total length.

Preferably, the herringbone ladder 3 is made of insulated glass fiber reinforced plastic.

The herringbone ladder 3 needs to be made of insulating materials in order to guarantee safety in the using process, and the strength of the herringbone ladder is high, so that the insulating glass fiber reinforced plastics are selected. Wherein the ramp 3 further comprises a first extension 32 and a second extension 34. The first extension member 32 is slidably disposed at one end of the first supporting member 31 and can slide along the length direction of the first supporting member 31. The second extension member 34 is slidably disposed at one end of the second support member 33 and can slide along the length direction of the second support member 33.

The heights of the operating low-voltage lines are not exactly the same, which requires that the herringbone ladder 3 can be adjusted in height to accommodate low-voltage lines of different heights. The trestle 3 is fixed on the ground in a herringbone manner through a first support 31 and a second support 33, the first support 31 increases or decreases the total length through sliding a first extension 32 thereon, and the corresponding second support 33 matches the change of the first extension 32 through sliding a second extension 34 thereon, so that the height is increased and the stability is kept. In other embodiments, in order to increase the stability of the wire feeding device, an extension member may be provided on only one of the supports.

Illustratively, a guide rail and a guide groove which are matched with each other are arranged between the first support 31 and the first extension piece 32, and the first support 31 and the first extension piece 32 are slidably connected through the sliding fit between the guide rail and the guide groove.

The sliding relationship between the second support member 33 and the second elongate member 34 is similar to the first support member 31 and the first elongate member 32 and will not be described in detail herein.

It will be appreciated that the catwalk 3 comprises a first and a second fastening screw. A first fastening screw is provided on the first elongate member 32 that can fasten the first elongate member 32 when the first elongate member 32 is slid to any position. A second fastening screw is provided on the second elongate member 34 and is capable of fastening the second elongate member 34 when the second elongate member 34 is slid to any one of the positions.

The first extension piece 32 and the second extension piece 34 need to be fixed after sliding to play a role in stability, and in this embodiment, the first extension piece 32 is provided with a first fastening screw, and the second extension piece 34 is provided with a second fastening screw. The fixing is carried out through the fastening screw, the operation is simple and convenient, and the practicability is high.

Second embodiment

The present embodiment provides an electric wire feeding device, which is based on the first embodiment and improves the structure of the feeding pipe 1, as shown in fig. 4.

In this embodiment, the conveying pipe 1 includes a first pipe wall 16, a second pipe wall 17 and a third pipe wall 18, the first pipe wall 16 and the second pipe wall 17 are quarter arcs, the third pipe wall 18 is a half arc, the first pipe wall 16 and the second pipe wall 17 are rotatably connected to the third pipe wall 18 through a rotating shaft 15, and an opening 14 is formed between the arcs of the first pipe wall 16 and the second pipe wall 17.

During use, pulling the electric wire 11 out of the delivery tube 1 only by the opening 14 and the elasticity of the delivery tube 1 is laborious and easily damages the electric wire 11. Through optimizing conveyer pipe 1 structure, divide into first pipe wall 16 and second pipe wall 17 and third pipe wall 18 with it to through two rotation axis 15 recombination one have an open-ended 14 body, the body is closed when carrying electric wire 11, guarantees the stability of transport route, opens the body when needing to pull out electric wire 11, easily takes out electric wire 11, has greatly made things convenient for the operation, and can not appear the condition of damaging electric wire 11.

In other embodiments, only the first tube wall 16 may be provided, with fewer movable structures, reducing the failure rate of the product.

It will be appreciated that the fixed shaft 13 is fixed in the third tubular wall 18 and does not scatter the balls 12 when the first tubular wall 16 and the second tubular wall 17 are opened.

Preferably, the first and

second duct walls

16 and 17 are provided with a clamping assembly on one side of the opening 14.

In particular, the clamping assembly may be a snap.

For preventing that first pipe wall 16 and the second pipe wall 17 of conveyer pipe 1 are become flexible rotatory and are leaded to electric wire 11 to drop out conveyer pipe 1 in the use, set up the buckle and carry out the chucking to first pipe wall 16 and second pipe wall 17, guarantee going on smoothly that electric wire 11 carried.

For making things convenient for operating personnel's use, can overlap on the rotation axis 15 and be equipped with the torsional spring, the torsional spring can be with first pipe wall 16 and second pipe wall 17 bullet to the direction of opening conveyer pipe 1, after operating personnel opened the chucking subassembly, first pipe wall 16 and second pipe wall 17 can be opened under the effect of torsional spring is automatic.

Taking the first tube wall 16 and the third tube wall 18 as an example, a torsion spring is sleeved on the rotating shaft 15, and the torsion spring can drive the first tube wall 16 to rotate counterclockwise relative to the third tube wall 18.

In other embodiments, the rotating shaft 15 may be a damping shaft, which can maintain the first tube wall 16 and the third tube wall 18 at any angle.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. An electric wire feeding apparatus, characterized by comprising:

a fixed frame (2);

the conveying pipe (1) is arranged on the fixing frame (2) and extends upwards, and an electric wire can penetrate through the conveying pipe (1);

the rolling parts are arranged in the conveying pipe (1) and are arranged along the length direction of the conveying pipe (1), the axis of each rolling part is perpendicular to the axis of the conveying pipe (1), and the rolling parts are in rolling contact with the electric wires.

2. The electric wire feeding device according to claim 1, wherein the rolling member includes:

the fixed shaft (13) is fixed inside the conveying pipe (1), and the fixed shaft (13) is arranged on one side of the axis of the conveying pipe (1);

at least two balls (12) rotatably disposed on the fixed shaft (13), wherein the electric wire can be located between two adjacent balls.

3. The electric wire feeding device according to claim 2, wherein the feeding tube (1) is an insulating rubber tube having elasticity.

4. The electric wire feeding device according to claim 3, wherein the feeding pipe (1) is provided with an opening (14), and the opening (14) penetrates the feeding pipe (1) in an axial direction of the feeding pipe (1).

5. The wire conveying device according to claim 4, wherein the conveying pipe (1) comprises a first pipe wall (16), a second pipe wall (17) and a third pipe wall (18), the first pipe wall (16) and the second pipe wall (17) are quarter arcs, the third pipe wall (18) is a half arc, the first pipe wall (16) and the second pipe wall (17) are rotatably connected with the third pipe wall (18) through a rotating shaft (15), and the opening (14) is formed between the arcs of the first pipe wall (16) and the second pipe wall (17).

6. The electric wire feeding device according to any one of claims 1 to 5, wherein the tip of the feeding tube (1) is bent, and the tip orifice of the feeding tube (1) is arranged in a horizontal direction.

7. The electric wire conveying device according to any one of claims 1 to 5, characterized in that the electric wire conveying device further comprises a double ladder (3), the double ladder (3) comprises a first support member (31) and a second support member (33) which are rotatably connected at the top ends, one end of the fixing frame (2) is rotatably connected with the top end of the first support member (31), and the fixing frame (2) can be switched between a working position in which the fixing frame is arranged at a flat angle with respect to the first support member (31) and a storage position in which the fixing frame is stacked on the first support member (31).

8. The wire feeding device according to claim 7, wherein the herringbone ladder (3) is made of insulated glass fiber reinforced plastic.

9. The wire conveying device according to claim 7, characterized in that the herringbone ladder (3) further comprises:

the first extending piece (32) is arranged at one end of the first supporting piece (31) in a sliding mode, and can slide along the length direction of the first supporting piece (31);

and the second extending piece (34) is arranged at one end of the second support piece (33) in a sliding mode, and the second extending piece (34) can slide along the length direction of the second support piece (33).

10. The wire feeding apparatus as set forth in claim 9, wherein the herringbone ladder further comprises:

a first fastening screw arranged on the first extending piece (32), wherein the first fastening screw can fasten and fix the first extending piece (32) and the first support piece (31) when the first extending piece (32) slides to any position;

a second fastening screw arranged on the second extending piece (34), wherein the second fastening screw can fasten and fix the second extending piece (34) and the second support piece (33) when the second extending piece (34) slides to any position.