House cabling rack structure for low-voltage 0.4 kV line

Abstract

The utility model relates to the field of electric power engineering, and discloses a house cabling rack structure for a low-voltage 0.4 kV line, which comprises two supporting frames arranged in parallel, the two supporting frames are fixedly connected to a roof through bolts, a plurality of yoke plates are arranged between the two supporting frames, and the yoke plates are fixedly connected to the roof through bolts. And a first mounting hole for mounting a strain insulator is reserved in each yoke plate. The construction method facilitates construction of the power transmission line and has the effect of reducing the construction difficulty of the power transmission line.

Description

Technical Field

[0001] The present application relates to the field of electric power engineering, and in particular to a house wiring rack structure for low-voltage 0.4kV lines. Background Art

[0002] With the acceleration of urbanization, many power facilities have been built in various cities in my country, which have brought many conveniences to people's daily lives. The low-voltage 0.4kV line is a type of low-voltage power transmission line, and its maximum voltage is 0.4kV. During the construction of power lines, stable support for power lines is particularly important for power safety.

[0003] Traditional low-voltage 0.4kV distribution lines are usually supported by straight pole towers and tension pole towers. The pole heads of straight pole towers and tension pole towers are arranged horizontally. Straight pole towers adopt single-angle steel type, and their straight cross arms are fixed with U-shaped clamps at a distance of 0.15m from the top of the tapered cement pole; tension pole towers adopt double-angle steel type, and their tension cross arms are fixed with stud bolts at a distance of 0.15m from the top of the tapered cement pole.

[0004] Since low-voltage line towers are needed to support the conductors, the line corridors have high requirements and must meet the conditions for pole erection and line laying before live construction can be carried out. However, when the pole head conductor is too close to houses or other obstacles, the requirements for the safe distance between the conductor and the ground cannot be met, and there is a greater risk of hidden dangers in the safe use of electricity. At the same time, the proximity to houses or other obstacles makes construction more difficult. Utility Model Content

[0005] In order to alleviate the problem of difficulty in tower construction when the tower is close to a house or other obstacles, the present application provides a house wiring rack structure for a low-voltage 0.4kV line.

[0006] The present application provides a house wiring rack structure for a low voltage 0.4kV line, which adopts the following technical solution:

[0007] A house wiring rack structure for low-voltage 0.4kV lines includes two parallel support frames, both of which are fixedly connected to the roof by bolts, and multiple connecting plates are arranged between the two support frames. Each of the connecting plates has a first installation hole reserved for installing a tension insulator.

[0008] By adopting the above technical solution, during the construction of the 0.4V line, when encountering obstacles such as houses, the support frame is fixed to the roof with bolts, and then a plurality of connecting plates are installed between the two support frames, and then the tension insulator is installed on the first mounting hole reserved in the connecting plate, and then the tension insulator string is connected to the conductor through the parallel groove wire clamp, so that the transmission line can be supported without the need to build another pole tower to support the transmission line, thereby reducing the construction difficulty of the transmission line and ensuring a sufficient safety distance from the ground.

[0009] Preferably, each connecting plate is detachably connected between two supporting frames, and each supporting frame is provided with a second mounting hole for mounting a pin-type porcelain insulator.

[0010] By adopting the above technical solution, when supporting the transmission line, it is usually divided into linear support and tension support. During the construction of the transmission line, when it is necessary to linearly support the transmission line, one of the support frames is removed separately, and the pin-type porcelain insulator is installed using the second mounting hole reserved on the support frame, and then the low-voltage conductor is fixed on the pin-type porcelain insulator, thereby realizing linear support for the low-voltage conductor.

[0011] Preferably, each support frame includes a horizontal crossarm and two supporting irons, the horizontal crossarm is connected between the two supporting irons, the supporting irons are used to support the horizontal crossarm, and the bottom of each supporting iron is fixedly connected to a bottom iron, and the bottom iron is used to be fixedly connected to the roof.

[0012] By adopting the above technical solution, the base iron is fixed to the roof by bolts, and then the base iron and the supporting iron are used to support the horizontal cross arm. According to the different support requirements of the transmission line, it is possible to choose to install pin-type porcelain insulators on the horizontal cross arm, or to install tension insulators through connecting plates.

[0013] Preferably, each support iron includes a support rod and a screw, the support rod is vertically fixedly connected to the horizontal cross arm, the screw is passed through one end of the support rod away from the horizontal cross arm, the screw is threadedly connected to the support rod, and the bottom iron is fixedly connected to the bottom of the screw.

[0014] By adopting the above technical solution and utilizing the threaded connection between the support rod and the screw rod, the height of the support iron can be adjusted. When encountering a sloping roof, the support height of the support iron can be adjusted by rotating the screw rod. By adjusting the height difference between the two support irons, the horizontal cross arm can be ensured to be installed horizontally on the sloping roof.

[0015] Preferably, each of the screw rods is threadedly connected to the bottom iron, each of the support rods passes through the top surface of the horizontal cross arm, and the internal thread in the support rod passes through the upper and lower ends of the support rod.

[0016] By adopting the above technical solution, when it is necessary to support more transmission lines at the same time and the supporting capacity of one wiring rack is insufficient, one of the screws is unscrewed from the bottom iron, and then the screw is screwed to the top of the support rod on the other wiring rack, so that two horizontal cross arms can be superimposed, so that the two wiring racks can be used in combination, and the wiring rack can support more transmission lines.

[0017] Preferably, a connecting rod is provided between the plurality of connecting plates, and the plurality of connecting plates are fixedly connected via the connecting rod.

[0018] By adopting the above technical solution, multiple connecting plates are fixed as a whole through connecting rods. During installation, the multiple connecting plates are placed as a whole between two horizontal cross arms, and then the multiple connecting plates are fixed between the two horizontal cross arms with bolts, thereby improving the convenience of wiring rack installation.

[0019] Preferably, each of the connecting plates is rotatably connected to the connecting rod, and an adjustment mechanism is provided on the connecting rod, and the adjustment mechanism is used to drive the plurality of connecting plates to rotate to be parallel to the connecting rod.

[0020] By adopting the above technical solution, when transporting the connecting plates, the adjustment mechanism is used to drive multiple connecting plates to rotate parallel to the connecting rods, which can effectively reduce the transportation volume of the multiple connecting plates and facilitate the transportation of the connecting plates fixed as a whole.

[0021] Preferably, each of the connecting plates is rotatably connected to the connecting rod via a rotating rod, and the adjusting mechanism includes a rack and a plurality of gears, the plurality of gears are arranged in a one-to-one correspondence with the plurality of rotating rods, the gears are coaxially fixedly connected to the corresponding rotating rods, the rack is passed through the connecting rod, the rack is slidably connected to the connecting rod, and each of the gears is meshingly connected to the rack.

[0022] By adopting the above technical solution, pulling the rack can drive multiple gears to rotate synchronously, and then drive multiple connecting plates to rotate synchronously, thereby realizing synchronous adjustment of the positions of multiple connecting plates and improving the convenience of adjusting the positions of multiple connecting plates.

[0023] Preferably, a spring is provided between the rack and the connecting rod, and the spring applies a thrust to the rack so that the rack drives the plurality of connecting plates to rotate to be parallel to the connecting rod.

[0024] By adopting the above technical solution and utilizing the setting of the spring, when the connecting plates are not installed, multiple connecting plates overlap with the connecting rods under the push of the springs and can remain stable; when the connecting plates need to be installed, the multiple connecting plates can be adjusted to a side-by-side state by pressing the rack.

[0025] In summary, this application at least includes the following beneficial technical effects:

[0026] 1. During the construction of the 0.4V line, when encountering obstacles such as houses, the support frame is fixed to the roof with bolts, and then multiple connecting plates are installed between the two support frames, and then the tension insulator is installed on the first mounting hole reserved on the connecting plate, and then the tension insulator string is connected to the conductor through the parallel groove clamp, so that the transmission line can be supported. There is no need to build another tower to support the transmission line, which reduces the construction difficulty of the transmission line and ensures a sufficient safety distance from the ground;

[0027] 2. By detachably connecting the connecting plate between the two support frames, when the transmission line needs to be linearly supported, one of the support frames is removed separately, and the pin-type porcelain insulator is installed using the second mounting hole reserved on the support frame, and then the low-voltage wire is fixed on the pin-type porcelain insulator, thereby achieving linear support for the low-voltage wire;

[0028] 3. The horizontal cross arm is supported by support rods and screws. The threaded connection between the support rods and the screws makes the height of the support iron adjustable. When encountering a sloping roof, the support height of the support iron can be adjusted by turning the screws. By adjusting the height difference between the two support irons, the horizontal cross arm can be installed horizontally on the sloping roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0030] Figure 2 is a schematic diagram of the structure of the support frame in Example 1 of the present application;

[0031] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0032] Figure 4 is a schematic structural diagram of a connecting rod in Example 2 of the present application;

[0033] Figure 5 is a schematic diagram of the structure of the adjustment mechanism in Example 2 of the present application;

[0034] Figure 6 It is a schematic diagram of the structure of the rack in Example 2 of the present application.

[0035] Figure numerals: 100, support frame; 110, horizontal cross arm; 111, second mounting hole; 120, support iron; 121, support rod; 122, screw; 130, bottom iron; 200, connecting plate; 210, first mounting hole; 300, connecting rod; 400, adjustment mechanism; 410, rack; 420, gear; 430, spring. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a house wiring rack structure for low-voltage 0.4kV lines.

[0038] Example 1

[0039] Reference Figure 1 and Figure 2 A house wiring rack structure for low-voltage 0.4kV lines includes two parallel support frames 100, each support frame 100 includes a horizontal cross arm 110, and the horizontal cross arm 110 is vertically fixedly connected with two support irons 120. The two support irons 120 are respectively located near the two ends of the horizontal cross arm 110, and each support iron 120 is fixedly connected to the horizontal cross arm 110 by bolts. The bottom of each support iron 120 is fixedly connected to a bottom iron 130, and the bottom iron 130 and the support iron 120 jointly support the horizontal cross arm 110, and the bottom iron 130 can be fixedly connected to the roof by bolts. A second mounting hole 111 for mounting a pin-type porcelain insulator is reserved on the horizontal cross arm 110.

[0040] Reference Figure 1 and Figure 2 A plurality of connecting plates 200 are fixedly connected between the two support frames 100, and the plurality of connecting plates 200 are installed on the horizontal cross arm 110 between the two support frames 100. Each connecting plate 200 is fixedly connected between the two horizontal cross arms 110 by bolts. The plurality of connecting plates 200 are spaced apart along the length direction of the horizontal cross arms 110, and each connecting plate 200 is provided with a first mounting hole 210 for mounting a tension insulator.

[0041] During the construction of the transmission line, when encountering obstacles such as houses, the bottom iron 130 is fixedly connected to the roof, and then a tension insulator is installed on the first mounting hole 210 reserved on the connecting plate 200, and then the transmission line is installed on the tension insulator, so that the tension support of the transmission line can be achieved; when it is necessary to support the transmission line in a straight line, a support frame 100 is used, and a pin-type porcelain insulator is installed in the second mounting hole 111 reserved in the horizontal cross arm 110, and then the transmission line is installed on the pin-type porcelain insulator, so that the transmission line can be supported in a straight line; there is no need to build another pole tower to support the transmission line, which reduces the construction difficulty of the transmission line and ensures a sufficient safety distance from the ground.

[0042] The implementation principle of a house wiring rack structure for a low-voltage 0.4kV line in an embodiment of the present application is as follows: during the construction of the transmission line, when encountering obstructions such as houses, multiple connecting plates 200 are installed between two support frames 100, and the two support frames 100 are fixed to the roof by bolts, and then tension insulators are installed on the connecting plates 200, and then the tension insulator strings are connected to the conductors through parallel groove clamps to achieve tension support for the transmission line; when it is necessary to provide linear support for the transmission line wheel, a separate support frame 100 is installed on the roof, and then the second mounting hole 111 reserved on the support frame 100 is used to install the pin-type porcelain insulator, and then the low-voltage conductor is fixed on the pin-type porcelain insulator, and then the linear support for the low-voltage conductor is achieved.

[0043] Example 2

[0044] Reference Figure 3 The difference between this embodiment and the embodiment is that each support iron 120 includes a support rod 121 and a screw 122, the support rod 121 is vertically fixedly connected to the horizontal cross arm 110, the top of the support rod 121 passes through the horizontal cross arm 110, the support rod 121 is hollow, an internal thread is provided inside the support rod 121, the screw 122 is passed through the end of the support rod 121 away from the horizontal cross arm 110, the screw 122 is threadedly connected to the support rod 121, and the bottom iron 130 is threadedly connected to the end of the screw 122 away from the support rod 121. By utilizing the threaded cooperation of the screw rod 122 and the support rod 121, when encountering a sloping roof, the support height of the support iron 120 can be adjusted by rotating the screw rod 122, and then the height difference between the two support irons 120 can be adjusted, and the horizontal cross arm 110 can be installed in a horizontal state on the sloping roof, thereby improving the applicability of the wiring rack; at the same time, when the number of transmission lines is large, the bottom iron 130 at the bottom of one support frame 100 can be unscrewed, and then the screw rod 122 on the support frame 100 can be screwed into the support rod 121 on the other support frame 100 from the top of the other support frame 100, so as to realize the superposition of the two horizontal cross arms 110, so that the two wiring racks can be used in combination, and the wiring rack can support more transmission lines.

[0045] Reference Figure 3 and Figure 4 A connecting rod 300 is installed on the multiple connecting plates 200, and the multiple connecting plates 200 are connected as a whole through the connecting rod 300. The connecting rod 300 is located in the middle of each connecting plate 200. Each connecting rod 300 is rotatably connected to the connecting rod 300 through a rotating rod. An adjusting mechanism 400 is installed on the connecting rod 300, and the adjusting mechanism 400 is used to drive the multiple connecting plates 200 to rotate on the connecting rod 300.

[0046] Reference Figure 5 and Figure 6The adjustment mechanism 400 includes a rack 410 inserted into the connecting rod 300, the length direction of the rack 410 is parallel to the length direction of the connecting rod 300, each rotating rod is coaxially fixedly connected with a gear 420, each gear 420 is meshed with the rack 410, a spring 430 is sleeved on the outer side of the rack 410, one end of the spring 430 is fixedly connected to the rack 410, and the other end of the spring 430 is fixedly connected to the connecting rod 300, and the spring 430 pushes the rack 410 to slide outward, and when the rack 410 is at a distance from one end of the spring 430 that slides out of the connecting rod 300, the multiple connecting plates 200 rotate to be parallel to the connecting rod 300. When transporting the connecting plates 200, the multiple connecting plates 200 are rotated to a state parallel to the connecting rod 300 under the push of the spring 430 and remain stable, which is convenient for transporting the connecting plates 200 connected as a whole; when it is necessary to install the connecting plates 200 between the horizontal cross arms 110 on the two support frames 100, press the rack 410 to slide toward the inside of the connecting rod 300, which can drive the multiple connecting plates 200 to unfold, and then the multiple connecting plates 200 are stuck between the two horizontal cross arms 110, and then they are locked and fixed with bolts. The integrated setting of the multiple connecting plates 200 significantly improves the convenience of installing the wiring rack.

[0047] The implementation principle of the structure of a house wiring rack for low-voltage 0.4kV lines in an embodiment of the present application is as follows: by setting the support iron 120 to an adjustable setting, when encountering a sloping roof, the support height of the support iron 120 can be adjusted by rotating the screw rod 122, and then the height difference between the two support irons 120 is adjusted, and the horizontal cross arm 110 is installed in a horizontal state on the sloping roof, thereby improving the applicability of the wiring rack; at the same time, multiple connecting plates 200 are connected as a whole through a connecting rod 300. During installation, the multiple connecting plates 200 are placed as a whole between the two horizontal cross arms 110, and then the multiple connecting plates 200 are fixed between the two horizontal cross arms 110 with bolts, thereby improving the convenience of installation of the wiring rack.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A house wiring rack structure for low voltage 0.4kV lines, characterized by: The invention comprises two support frames (100) arranged in parallel, the two support frames (100) are fixedly connected to the roof by bolts, a plurality of connecting plates (200) are arranged between the two support frames (100), and each connecting plate (200) is provided with a first mounting hole (210) for mounting a tension insulator.

2. The house wiring rack structure for low voltage 0.4kV lines according to claim 1 is characterized in that: Each connecting plate (200) is detachably connected between two support frames (100), and each support frame (100) is provided with a second mounting hole (111) for mounting a pin-type porcelain insulator.

3. The house wiring rack structure for low voltage 0.4kV lines according to claim 2 is characterized in that: Each support frame (100) comprises a horizontal cross arm (110) and two support irons (120), wherein the horizontal cross arm (110) is connected between the two support irons (120), and the support irons (120) are used to support the horizontal cross arm (110), and the bottom of each support iron (120) is fixedly connected to a bottom iron (130), and the bottom iron (130) is used to be fixedly connected to the roof.

4. The house wiring rack structure for low voltage 0.4kV lines according to claim 3 is characterized in that: Each support iron (120) comprises a support rod (121) and a screw rod (122); the support rod (121) is vertically fixedly connected to the horizontal cross arm (110); the screw rod (122) is passed through an end of the support rod (121) away from the horizontal cross arm (110); the screw rod (122) is threadedly connected to the support rod (121); and the bottom iron (130) is fixedly connected to the bottom of the screw rod (122).

5. The house wiring rack structure for low voltage 0.4kV lines according to claim 4 is characterized in that: Each of the screw rods (122) is threadedly connected to the bottom iron (130), each of the support rods (121) passes through the top surface of the horizontal cross arm (110), and the internal thread in the support rod (121) passes through the upper and lower ends of the support rod (121).

6. The house wiring rack structure for low voltage 0.4kV lines according to claim 1 is characterized in that: A connecting rod (300) is provided between the plurality of connecting plates (200), and the plurality of connecting plates (200) are fixedly connected via the connecting rod (300).

7. The house wiring rack structure for low voltage 0.4kV lines according to claim 6 is characterized in that: Each of the connecting plates (200) is rotatably connected to the connecting rod (300), and an adjustment mechanism (400) is provided on the connecting rod (300). The adjustment mechanism (400) is used to drive the plurality of connecting plates (200) to rotate to be parallel to the connecting rod (300).

8. The house wiring rack structure for low voltage 0.4kV lines according to claim 7 is characterized in that: Each of the link plates (200) is rotatably connected to the connecting rod (300) via a rotating rod. The adjusting mechanism (400) comprises a rack (410) and a plurality of gears (420). The plurality of gears (420) are arranged in a one-to-one correspondence with the plurality of rotating rods. The gears (420) are coaxially fixedly connected to the corresponding rotating rods. The rack (410) is passed through the connecting rod (300). The rack (410) is slidably connected to the connecting rod (300), and each of the gears (420) is meshedly connected to the rack (410).

9. The house wiring rack structure for low voltage 0.4kV lines according to claim 8, characterized in that: A spring (430) is provided between the rack (410) and the connecting rod (300), and the spring (430) applies a thrust to the rack (410) so that the rack (410) drives the plurality of connecting plates (200) to rotate to be parallel to the connecting rod (300).

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