A cantilever bracket and a cantilever spanning structure for household connection lines

Abstract

The present invention discloses a cantilever bracket, which can be connected to an electric pole, and includes a main beam, a support rod and a connecting wire box, wherein the first end of the main beam is used to connect to the electric pole, the second end of the main beam is a free end, and a position adjustment hole is provided between the first end of the main beam and the second end of the main beam; the first end of the support rod is used to connect to the electric pole, and the second end of the support rod is connected to the position adjustment hole; the length of the support rod is greater than the maximum distance from the first end of the main beam to the position adjustment hole; and the connecting wire box is installed on the main beam. It can be seen that when the cantilever bracket provided by the present invention is used for overhead household lines, the wire is suspended straight from the main beam and then folded to the household house, thereby increasing the distance between the wire and the road surface. The main beam is provided with a position adjustment hole, so that the angle between the main beam and the support rod is adjustable, and the height of the free end position of the main beam is adjustable, which can meet the vertical distance required by the specification; in addition, a connecting wire box is provided, which can make the length of the line adjustable, and avoid the problem of insufficient length of the household line.

Description

Technical Field

[0001] The invention relates to the technical field of power conductor erection equipment, and in particular to a cantilever bracket and a household line cantilever span structure provided with the cantilever bracket. Background Art

[0002] During the construction of overhead service lines, since service lines often cross streets, according to the specifications, the vertical distances from the service lines crossing streets to the center of the road surface are: no less than 6m for streets with traffic; no less than 3.5m for streets and sidewalks with difficult traffic; no less than 3m for sidewalks and alleys (li, lanes, lanes) that are not open to traffic. With the continuous expansion and adjustment of roads, there will be situations such as increased road width and increased road height, which will result in the vertical distance from some existing service lines to the center of the road surface not meeting the specifications, which is very likely to cause safety accidents, thus forming safety hazards.

[0003] Generally, there are two ways to connect overhead service lines: split conductor overhead service line, see Figure 5 ; Bundled conductor overhead connection, see Figure 6 At present, neither of these two wiring methods can solve or avoid the problem of insufficient vertical distance from the access line to the center of the road surface. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a cantilever bracket.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cantilever bracket, capable of being connected to an electric pole, comprising:

[0007] A main beam, wherein the first end of the main beam is used to connect the electric pole, the second end of the main beam is a free end, and a position adjustment hole is provided between the first end of the main beam and the second end of the main beam;

[0008] A support rod, wherein the first end of the support rod is used to connect to the electric pole, and the second end of the support rod is connected to the position adjustment hole;

[0009] The length of the support rod is greater than the maximum distance from the first end of the main beam to the position adjustment hole;

[0010] A connecting wire box is installed on the main beam, and the wires in the connecting wire box are suspended straight from the main beam and connected to the household house in a folded line.

[0011] Optionally, the cantilever bracket further includes a first connecting member and a second connecting member:

[0012] The main beam and the electric pole are hingedly connected via the first connecting member;

[0013] The support rod and the electric pole are hingedly connected via the second connecting member.

[0014] Optionally, in the above cantilever bracket, the position adjustment hole is a strip-shaped hole;

[0015] Alternatively, the position adjustment holes are a plurality of through holes arranged in sequence along the length direction of the main beam.

[0016] Optionally, in the above-mentioned cantilever bracket, a plurality of main beams are arranged side by side, and adjacent main beams are fixedly connected by tie rods.

[0017] Optionally, in the above cantilever bracket, the plurality of main beams are located in the same horizontal plane;

[0018] A plurality of support rods are arranged side by side and are respectively connected to the main beams at different positions.

[0019] Optionally, the above-mentioned cantilever bracket also includes an insulator arranged on the main beam.

[0020] Optionally, in the above-mentioned cantilever bracket, the free end of the main beam is connected to a four-phase cross arm, and the insulator is provided on the four-phase cross arm.

[0021] Optionally, the above-mentioned cantilever bracket further includes a guide pulley, which is arranged above the main beam, and the rotation center axis of the guide pulley is perpendicular to the main beam.

[0022] Optionally, in the above-mentioned cantilever bracket, the guide pulley is made of rubber.

[0023] A cantilevered spanning structure for a service line comprises an electric pole and the above-mentioned cantilevered bracket, wherein the cantilevered bracket is connected to the electric pole.

[0024] It can be seen from the above technical scheme that the cantilever bracket provided by the present invention, when the household line is connected overhead, the conductor is suspended from the main beam in a straight line and then connected to the household house in a folded line, thereby increasing the distance between the conductor and the road surface and reducing safety risks. Moreover, the main beam, the support rod and the electric pole form a triangular stable structure and the bracket structure is simple, convenient to manufacture and install, relatively stable and safe to use; the main beam is provided with a position adjustment hole, so that the angle between the main beam and the support rod can be adjusted, so that the height of the free end of the main beam can be adjusted, which can meet the vertical distance required by the specification; in addition, a connecting wire box is provided, which can make the length of the line adjustable when the height of the free end of the main beam is adjustable, avoiding the problem of insufficient length of the household line, thereby greatly improving work efficiency, saving work time, and helping to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of the cantilever bracket provided in the embodiment of the present invention Figure 1 ;

[0027] Figure 2 A schematic diagram of the structure of the cantilever bracket provided in the embodiment of the present invention Figure 2 ;

[0028] Figure 3 A schematic diagram of the structure of the cantilever bracket provided in the embodiment of the present invention Figure 3 ;

[0029] Figure 4 A schematic diagram of the structure of the cantilever bracket provided in the embodiment of the present invention Figure 4 ;

[0030] Figure 5 It is an overhead household connection method that splits the conductors of the overhead household connection line;

[0031] Figure 6 It is an overhead service line bundling conductor overhead service line method.

[0032] in:

[0033] 1- pole, 2- main beam, 3- support pole, 4- connection wire box, 5- insulator, 6- four-phase cross arm,

[0034] 7-guide pulley, 8-pull rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the invention, it should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] like Figures 1 to 4 As shown, an embodiment of the present invention provides a cantilever bracket, which can be connected to the pole 1, including a main beam 2, a support rod 3 and a connecting wire box 4, wherein the first end of the main beam 2 is used to connect the pole 1, the second end of the main beam 2 is a free end, and a position adjustment hole is provided between the first end of the main beam 2 and the second end of the main beam 2; the first end of the support rod 3 is used to connect the pole 1, and the second end of the support rod 3 is connected to the position adjustment hole; the length of the support rod 3 is greater than the maximum distance from the first end of the main beam 2 to the position adjustment hole; the connecting wire box 4 is installed on the main beam 2, and the wire in the connecting wire box 4 is suspended from the main beam 2 in a straight line and connected to the household in a folded line. It should be noted that the pole 1 includes a wooden pole, a cement pole, an electric power tower, or any other structure and device that can support the cable function, such as the outer wall of a building, etc. In addition, the various components of the cantilever bracket are mainly connected by welding and bolts. The cantilever bracket and the pole 1 form a stable triangular structure fixed to the pole 1 or the outer wall of the building, and the fixing method adopts a clamp, bolt connection or expansion bolt fixing, which has no effect on the use effect of the attachment. However, it is not limited to this, and the connection method between the various components of the cantilever bracket and the connection and fixing method of the cantilever bracket and the pole 1 are not specifically limited. Those skilled in the art can make specific designs according to actual needs.

[0038] It can be seen that the cantilever bracket provided by the present invention, when the household line is connected overhead, the conductor is suspended straight from the main beam 2 and then connected to the household house in a folded line, thereby increasing the distance between the conductor and the road surface and reducing safety risks. Moreover, the main beam 2, the support rod 3 and the pole 1 form a triangular stable structure and the bracket structure is simple, convenient to manufacture and install, relatively stable and safe to use; the main beam 2 is provided with a position adjustment hole, so that the angle between the main beam 2 and the support rod 3 is adjustable, and the height of the free end of the main beam 2 is adjustable, which can meet the vertical distance required by the specification; in addition, a connecting wire box 4 is provided, which can make the length of the line adjustable when the height of the free end of the main beam 2 is adjustable, avoiding the problem of insufficient length of the household line, thereby greatly improving work efficiency, saving work time, and helping to reduce costs.

[0039] In a specific implementation, it also includes a first connecting member and a second connecting member, wherein the main beam 2 and the electric pole 1 are hinged by the first connecting member; the support rod 3 and the electric pole 1 are hinged by the second connecting member. The hinged connection mode facilitates the support rod 3 to adjust the position along the position adjustment hole on the main beam 2, and the support rod 3 and the main beam 2 can rotate in coordination, so as to facilitate the height adjustment of the main beam 2.

[0040] In specific implementation, the position adjustment hole is a strip hole; or, the position adjustment hole is a plurality of through holes arranged in sequence along the length direction of the main beam 2. However, it is not limited thereto, and the specific structure of the position adjustment hole is not specifically limited. The position adjustment hole can be connected to the second end of the support rod 3 to adjust the angle between the main beam 2 and the support rod 3. Those skilled in the art can make specific designs according to actual needs.

[0041] During specific implementation, a plurality of main beams 2 are arranged side by side, and adjacent main beams 2 are fixedly connected by tie rods 8. Preferably, two main beams 2 are arranged side by side, which can not only ensure the structural stability of the main beams 2, but also avoid the problem of excessive deadweight of the cantilever bracket caused by too many main beams 2, which is not conducive to the stress of the cantilever bracket. However, it is not limited to this, and the specific number of main beams 2 is not specifically limited. Those skilled in the art can make specific designs according to actual needs. It should be noted that for clustered or short-distance spans, a single-row adjustable angle cantilever bracket can be used to solve the safety hazard caused by insufficient distance between the wire and the ground. It can not only meet the minimum vertical distance required by the specification, but also reduce the deadweight of the cantilever bracket as much as possible. It can save materials and reduce costs.

[0042] In specific implementation, multiple main beams 2 are located in the same horizontal plane; multiple support rods 3 are arranged side by side, respectively connecting the main beams 2 at different positions. Preferably, two support rods 3 are arranged side by side, which can ensure the structural stability of the support rods 3 and avoid the problem of excessive deadweight of the cantilever bracket caused by too many support rods 3, which is not conducive to the force of the cantilever bracket. However, it is not limited to this, and the specific number of support rods 3 is not specifically limited. Those skilled in the art can make specific designs according to actual needs.

[0043] In the specific implementation, it also includes an insulator 5, which is arranged on the main beam 2. Among them, the insulator 5 is preferably a porcelain butterfly insulator, but is not limited thereto. The specific number and specific structure of the insulator 5 are not specifically limited, and those skilled in the art can make specific designs according to actual needs.

[0044] During specific implementation, the free end of the main beam 2 is connected to the four-phase cross arm 6 , and the four-phase cross arm 6 is provided with an insulator 5 .

[0045] During specific implementation, it also includes a guide pulley 7 which is arranged above the main beam 2 , and the rotation center axis of the guide pulley 7 is perpendicular to the main beam 2 .

[0046] Optionally, in the above-mentioned cantilever bracket, the guide pulley 7 is made of rubber. And the guide pulley 7 is a single-groove guide pulley, which is convenient for the wire to move on the wire pulley, and is convenient for constraining the position of the wire to prevent it from detaching from the guide pulley 7. At the same time, it is convenient for the wire to move and reduce the friction between the wire and the cantilever bracket. In addition, the rubber material has an insulating property, but is not limited to this. The guide pulley 7 can have an insulating effect. The specific material of the guide pulley 7 is not specifically limited, and those skilled in the art can make a specific design according to actual needs.

[0047] During specific implementation, the main beam 2 is made of Q253 hot-dip galvanized angle steel. The length of the main beam 2 is determined according to the width of the road it crosses, and the length of the main beam 2 is not greater than 3000mm.

[0048] In specific implementation, the cantilever bracket is made of metal material (Q253 hot-dip galvanized steel), which is firmer, more durable and has a relatively longer service life than other metal materials. However, it is not limited to this, and the cantilever bracket can also be made of composite materials. The material of the cantilever bracket can meet the stress performance of the cantilever length and the strength of the structure. The specific material of the cantilever bracket is not specifically limited, and those skilled in the art can make specific designs according to actual needs.

[0049] The embodiment of the present invention also provides a cantilever span structure for a household line, comprising an electric pole 1 and the above-mentioned cantilever bracket, wherein the cantilever bracket is connected to the electric pole 1. It can be seen that the cantilever span structure for a household line provided by the present invention can solve the existing problem that when overhead household lines are connected, the distance between the wire and the road surface is increased by installing a cantilever bracket instead of adding an oblique straight line conductor from the electric pole 1 to the household house, thereby reducing safety risks by adding a cantilever straight line segment and then connecting the wire to the household house in a folded line. Moreover, the main beam 2, the support rod 3 and the electric pole 1 form a triangular stable structure, and the support structure is simple, convenient to manufacture and install, and relatively stable and safe to use; the main beam 2 is provided with a position adjustment hole, so that the angle between the main beam 2 and the support rod 3 is adjustable, so that the height of the free end position of the main beam 2 is adjustable, and the vertical distance required by the specification can be met; in addition, a connecting wire box 4 is provided, which can make the length of the line adjustable when the height of the free end position of the main beam 2 is adjustable, thereby avoiding the problem of insufficient length of the household line, thereby greatly improving work efficiency and saving work time.

[0050] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0051] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0052] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cantilever bracket, capable of being connected to an electric pole (1), characterized in that: include: A main beam (2), wherein the first end of the main beam (2) is used to connect the electric pole (1), the second end of the main beam (2) is a free end, and a position adjustment hole is provided between the first end of the main beam (2) and the second end of the main beam (2); A support rod (3), wherein the first end of the support rod (3) is used to connect to the electric pole (1), and the second end of the support rod (3) is connected to the position adjustment hole; so that the angle between the main beam (2) and the support rod (3) is adjustable, and the height of the free end position of the main beam (2) is adjustable; The length of the support rod (3) is greater than the maximum distance from the first end of the main beam (2) to the position adjustment hole; A connecting wire box (4) is installed on the main beam (2), and the wires in the connecting wire box (4) are suspended in a straight line from the main beam (2) and connected to the household room in a folded line.

2. The cantilever bracket according to claim 1, characterized in that: Also includes a first connecting member and a second connecting member: The main beam (2) and the electric pole (1) are hingedly connected via the first connecting member; The support rod (3) and the electric pole (1) are hingedly connected via the second connecting member.

3. The cantilever bracket according to claim 2, characterized in that: The position adjustment hole is a strip-shaped hole; Alternatively, the position adjustment holes are a plurality of through holes arranged in sequence along the length direction of the main beam (2).

4. The cantilever bracket according to claim 1, characterized in that: A plurality of main beams (2) are arranged side by side, and adjacent main beams (2) are fixedly connected via tie rods (8).

5. The cantilever bracket according to claim 4, characterized in that: The plurality of main beams (2) are located in the same horizontal plane; A plurality of the support rods (3) are arranged side by side and are respectively connected to the main beams (2) at different positions.

6. The cantilever bracket according to claim 1, characterized in that: It also includes an insulator (5) which is arranged on the main beam (2).

7. The cantilever bracket according to claim 6, characterized in that: The free end of the main beam (2) is connected to a four-phase cross arm (6), and the insulator (5) is arranged on the four-phase cross arm (6).

8. The cantilever bracket according to claim 1, characterized in that: It also comprises a guide pulley (7) which is arranged above the main beam (2), and the rotation center axis of the guide pulley (7) is perpendicular to the main beam (2).

9. The cantilever bracket according to claim 8, characterized in that: The guide pulley (7) is made of rubber.

10. A cantilever span structure for a subscriber line, comprising a pole (1), characterized in that: It also comprises a cantilever bracket as described in any one of claims 1 to 9, wherein the cantilever bracket is connected to the electric pole (1).

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