Wire hanging fitting and integrated all-insulation power distribution network wire supporting and fixing device using same

Abstract

The invention discloses a wire hanging fitting and an integrated all-insulation power distribution network wire supporting and fixing device using the same. The wire hanging fitting comprises a main body locking device and a wire fixing clamp assembled on the main body locking device. The main body locking device comprises a first locking seat and a second locking seat which are connected in a hinged mode, the first locking seat and the second locking seat are fixed through a connecting piece after being oppositely combined, and a clamping groove used for tightly holding the end of an insulator is formed in the joint face. The wire fixing clamps are of a holding clamp type structure, and at least one wire fixing clamp is assembled on each of the first locking seat and the second locking seat. The supporting and fixing device comprises an electric pole, a first insulating cross arm and a second insulating cross arm which are assembled on the top of the electric pole, and wire hanging fittings assembled on the first insulating cross arm and the second insulating cross arm. Compared with a traditional binding type wire hanging fitting, the wire hanging fitting is low in installation difficulty, the problems of poor contact, mechanical failure and the like are not prone to occurring, and the wire hanging fitting is suitable for being used in first-aid repair scenes.

Description

Technical Field

[0001] The invention relates to a device for overhead lines or cables, in particular to a wire hanging fitting and an integrated fully insulated distribution network conductor support and fixing device using the same. Background Art

[0002] Hanging fittings are an important component of fixing the conductors of distribution lines. At present, hanging fittings are generally of the binding type. This type of hanging fittings has a tail that is vertically tilted upward. The tail is a solid structure with a relatively large overall weight. The outer side of the tail is a "thick on top and thin on the bottom" structure, and an annular groove is formed at the lower end of the tail. When used, the wire is wrapped around the annular groove and the tail using pre-twisted wires and three binding technologies to bind the wires. This structure has the following problems in actual installation and use: One is that it is heavy, which makes it difficult to carry during high-altitude operations and increases the load on workers; The second problem is the high difficulty of binding. The cable tie needs to be wrapped around 6 to 8 turns and the force must be applied evenly. Substandard workmanship can easily lead to: (1) poor contact. Uneven local pressure increases the contact resistance between the wire and the hardware, causing overheating; (2) mechanical failure. The pre-twisted wire loosens, causing the wire to slip beyond the safe range, resulting in abnormal sag or wire breakage.

[0003] In addition, in the traditional distribution line erection operation system, in addition to the hanging wire fittings, poles and pole accessories such as crossarms, insulators, clamps and fasteners are also involved. In the pole erection construction process, the above materials need to be collected in sequence. After arriving at the construction site, the crossarm must be assembled on the pole first, and then the pole erection operation is carried out. After the pole erection is completed, the pole climbing operation is required to install the remaining accessories. This whole set of operation procedures is complicated and requires the collaboration of many people and multiple operations to complete. Especially in special periods such as emergency repairs, the cumbersome and fragmented disadvantages of this operation mode are fully revealed: the material collection links are scattered, which increases the time cost and management difficulty; the multi-step on-site assembly and multiple pole climbing operations not only consume a lot of manpower and material resources, but also significantly reduce the efficiency of emergency repairs, and it is difficult to meet the urgent need for rapid restoration of power supply in special periods. Summary of the invention

[0004] The present invention provides a wire hanging hardware, which aims to solve the problems of troublesome on-site installation and construction, different working standards of workers and the like caused by traditional wire hanging hardware; The present invention also provides an integrated fully insulated distribution network conductor support device, which aims to simplify the construction site operation process and improve construction efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a wire hanging hardware, comprising a main body locking device and a wire fixing clamp assembled on the main body locking device; The main body locking device comprises a first locking seat and a second locking seat which are hingedly connected, the first locking seat and the second locking seat are fixed by a connecting piece after being matched, and a clamping groove for holding the end of the insulator is formed at the joint surface; The wire fixing clamp is a clamping structure, and at least one wire fixing clamp is respectively assembled on the first locking seat and the second locking seat.

[0006] As a limitation of the present invention, both the first locking seat and the second locking seat are provided with an inverted trapezoidal groove, and the bottom of the inverted trapezoidal groove is provided with a through hole penetrating the first locking seat or the second locking seat.

[0007] As a further limitation of the present invention, the wire fixing fixture includes a first fixed catch and a second fixed catch hingedly connected via a second hinge shaft, a first articulated bolt assembled on the second articulated shaft, and a first locking nut used in conjunction with the first articulated bolt; The first fixed catch and the second fixed catch are assembled in the inverted trapezoidal groove; the first articulated bolt is passed through the through hole; the first locking nut is threadably assembled on the first articulated bolt and abuts against the bottom of the through hole.

[0008] As a further limitation of the present invention, a first spring is sleeved on the first movable bolt, and the first spring is confined between the bottom of the inverted trapezoidal groove and the bottom of the fixed catch.

[0009] As a further limitation of the present invention, an opening and closing spring is sleeved on the second hinge shaft, and the opening and closing spring is a torsion spring.

[0010] As a further limitation of the present invention, the first fixed gripping support and the second fixed gripping support are both made of carbon nanomaterials; and the clamping surfaces of the first fixed gripping support and the second fixed gripping support are both provided with heat dissipation anti-slip grooves.

[0011] As another limitation of the present invention, the connecting member includes a second movable bolt and a second locking nut used in conjunction with each other; A hinge block is fixedly disposed on the first locking seat, and a limit block is fixedly disposed on the second locking seat. When the first locking seat and the second locking seat are aligned, the hinge block corresponds to the limit block. The second articulated bolt is hinged on the articulated block; the second locking nut is threadedly assembled on the second articulated bolt, and when the second locking nut is restricted on the limiting block, the first locking seat is fixed to the second locking seat.

[0012] The present invention also discloses an integrated fully insulated distribution network conductor support device, comprising an electric pole, a first insulating cross arm and a second insulating cross arm mounted on the top of the electric pole; and also comprising a wire hanging fitting mounted on the first insulating cross arm and the second insulating cross arm, wherein the wire hanging fitting is the wire hanging fitting as described above.

[0013] As a limitation of the present invention, the first insulating cross arm is assembled on the top of the pole through a first connecting seat; the first connecting seat includes an end cap for buckling on the top of the pole, at least one first screw rod passing through the pole and the end cap, and a first nut threadedly assembled on the first screw rod; The end of the first insulating cross arm is assembled on the first screw rod. When the first nut is tightened, the first screw rod is stretched to generate an axial pre-tightening force to press the first insulating cross arm against the side surface of the end cover.

[0014] As another limitation of the present invention, the second insulating cross arm is assembled on the top of the pole through a second connecting seat and is located below the first insulating cross arm; The second connecting seat comprises a left half and a right half, wherein a clamping groove for clamping the pole is formed at the joint surface after the left half and the right half are matched; the left half and the right half are connected by at least two sets of bolts after being matched, and a pre-tightening force is applied to ensure that the joint surface is pressed tightly; The end of the second insulating cross arm is assembled on the bolt group, and positioning blocks for positioning the second insulating cross arm in a horizontal or vertical state are fixed on the left half body and the right half body.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art: (1) The present invention provides a wire hanging hardware for power conductors that does not require binding, wherein the main body locking device includes a first locking seat and a second locking seat that are hingedly connected, which can be easily opened and closed to hold the end of the insulator tightly, so as to achieve installation on the end of the insulator; wherein the wire fixing clamp locks the wire by moving up and down, and the first fixed gripping support and the second fixed gripping support will automatically open to both sides when lifted upward, and after the wire is placed, tightening the first locking nut can pull the first fixed gripping support and the second fixed gripping support to sink into the inverted trapezoidal groove through the first movable bolt, so that they close and lock the wire. Compared with traditional binding-type wire hanging hardware, the wire hanging hardware disclosed in the present invention has low installation difficulty, is not prone to problems such as poor contact and mechanical failure, and is suitable for use in emergency repair scenarios.

[0016] (2) In the wire hanging hardware disclosed in the present invention, a first spring is sleeved on the first movable bolt, and an opening and closing spring is sleeved on the second hinge shaft. When the first locking nut is loosened, the first spring can push the first fixed catch and the second fixed catch upward out of the inverted trapezoidal groove, and the opening and closing spring can spread the first fixed catch and the second fixed catch apart, making it more convenient to use.

[0017] (3) In the wire hanging fitting disclosed in the present invention, the first fixed gripping bracket and the second fixed gripping bracket are made of carbon nanomaterials. When alternating current passes through a ferromagnetic material, hysteresis loss and eddy current loss are generated, causing the object to heat up. Carbon nanomaterials are almost non-magnetic materials and can significantly reduce the power loss caused by the wire hanging fittings.

[0018] (4) The present invention also provides an integrated fully insulated distribution network conductor support device, which innovatively adopts an integrated molding design. Insulated cross arms, wire hanging hardware and other accessories are directly integrated on the poles. After the overall manufacturing is completed in the factory, it is directly transported to the construction site, which greatly simplifies the construction site operation process. Only the key step of pole installation is required to complete the pole erection work, effectively avoiding many complex processes in the traditional operation mode, greatly saving manpower, material resources and precious time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of the wire hanging fitting in an embodiment of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the wire hanging fitting in an embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the main body locking device in the wire hanging fitting according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a wire fixing clamp in a wire hanging fitting according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the expanded structure of the integrated fully insulated distribution network conductor support device in an embodiment of the present invention (single circuit); Figure 6 It is a schematic diagram of the retracted structure of the integrated fully insulated power distribution network conductor support device in an embodiment of the present invention (single circuit); Figure 7 It is a schematic diagram of the expanded structure of the integrated fully insulated distribution network conductor support device in an embodiment of the present invention (double circuit); Figure 8 It is a schematic diagram of the retracted structure of the integrated fully insulated distribution network conductor support device in an embodiment of the present invention (double circuit); Fig. 9It is a schematic diagram of the assembly structure of the first connecting seat, the first insulating cross arm and the wire hanging fitting in an embodiment of the present invention; Fig.10 This is a schematic diagram of the split structure of the first connecting socket in an embodiment of the present invention; Fig.11 It is a schematic diagram of the assembly structure of the second connecting base, the second insulating cross arm and the wire hanging fitting in an embodiment of the present invention; Fig.12 This is a schematic structural diagram of a second connecting socket in an embodiment of the present invention; Fig.13 Schematic diagram of the split structure of the second connecting socket in an embodiment of the present invention; Fig.14 It is a schematic structural diagram of a first insulating cross arm and a wire hanging fitting in an embodiment of the present invention; Fig.15 It is a schematic structural diagram of a second insulating cross arm and a wire hanging fitting in an embodiment of the present invention; Fig.16 Schematic diagram of the transport packaging of the integrated fully insulated power distribution network conductor support device according to an embodiment of the present invention; In the figure: 1, electric pole; 2, first insulating cross arm; 3, second insulating cross arm; 4, wire hanging hardware; 5, main body locking device; 6, wire fixing clamp; 7, first locking seat; 8, second locking seat; 9, slot; 10, first hinge axis; 11, inverted trapezoidal groove; 12, through hole; 13, hinge block; 14, limit block; 15, second movable bolt; 16, second locking nut; 17, first fixed catch; 18, second fixed catch; 19, first The movable bolt; 20, the first locking nut; 21, the first spring; 22, the opening and closing spring; 23, the heat dissipation anti-skid groove; 24, the second hinge shaft; 25, the first connecting seat; 26, the second connecting seat; 27, the end cover; 28, the first screw rod; 29, the first nut; 30, the left half; 31, the right half; 32, the clamping groove; 33, the second screw rod; 34, the second nut; 35, the positioning block; 36, the insulating sheath; 37, the wooden box; 38, the annular groove. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0022] This embodiment discloses a wire hanging fitting 4, such as Figure 1 to Figure 2 As shown, it includes a main body locking device 5 and a wire fixing clamp 6.

[0023] The main body locking device 5 includes a first locking seat 7 and a second locking seat 8. Figure 3As shown, the first locking seat 7 and the second locking seat 8 are hingedly connected on one side by a first hinge shaft 10, and are fixed on the opposite side by a connecting piece. After the first locking seat 7 and the second locking seat 8 are aligned, a clamping groove 9 for clamping the end of the insulator is formed at the joint surface to achieve assembly and fixation on the end of the insulator (the insulator refers to the insulating crossarm described below). Furthermore, both the first locking seat 7 and the second locking seat 8 are provided with an inverted trapezoidal groove 11, and the bottom of the inverted trapezoidal groove 11 is provided with a through hole 12 that penetrates the locking seat. A hinge block 13 is fixedly provided on the first locking seat 7, and a limit block 14 is fixedly provided on the second locking seat 8, as shown in FIG. Figure 3 As shown, when the first locking seat 7 and the second locking seat 8 are aligned, the hinge block 13 corresponds to the limit block 14. A limit groove is provided on the side of the limit block 14 away from the hinge block 13 for limiting the second locking nut 16 described below.

[0024] More specifically, the connecting member includes a second movable bolt 15 and a second locking nut 16 used in conjunction with each other. Figure 3 As shown, the second pivot bolt 15 is hinged on the hinge block 13, and the second locking nut 16 is threadedly assembled on the second pivot bolt 15. After the first locking seat 7 and the second locking seat 8 are aligned, the second pivot bolt 15 and the second locking nut 16 are rotated onto the limit block 14, and then the second locking nut 16 is tightened to enter the limit groove of the limit block 14, so that the first locking seat 7 and the second locking seat 8 can be relatively fixed in the aligned state.

[0025] In this embodiment, the main body locking device 5 is made of aluminum alloy A380, which has the advantages of light weight, shock resistance, electrical interference resistance, high thermal conductivity, etc. compared with traditional cast iron materials, the weight is reduced by at least half, and the breaking load is increased by at least 30%, which can effectively improve the safety and reliability of the line.

[0026] The wire fixing clamp 6 is a clamping structure, and one is mounted on each of the first locking seat 7 and the second locking seat 8. Of course, according to actual needs, multiple wire fixing clamps 6 can be mounted on the first locking seat 7 and the second locking seat 8, and multiple inverted trapezoidal grooves 11 are only required. Figure 4 As shown, the wire fixing fixture 6 includes a first fixing catch 17 and a second fixing catch 18 which are hingedly connected via a second hinge shaft 24, a first articulated bolt 19 mounted on the second articulated shaft 24, and a first locking nut 20 used in conjunction with the first articulated bolt 19. Figure 1 and Figure 2As shown, the first fixed catch 17 and the second fixed catch 18 are assembled in the same inverted trapezoidal groove 11; the first movable bolt 19 is inserted into the through hole 12 at the bottom of the inverted trapezoidal groove 11; the first locking nut 20 is threadedly assembled on the first movable bolt 19 and abuts against the bottom of the through hole 12. The first movable bolt cooperates with the first locking nut 20 to restrict the first fixed catch 17 and the second fixed catch 18 in the inverted trapezoidal groove 11, so that the first fixed catch 17 and the second fixed catch 18 are in a closed state.

[0027] like Figure 4 As shown, a first spring 21 is sleeved on the first movable bolt 19. When the first movable bolt 19 is inserted into the through hole 12, the first spring 21 is restricted between the bottom of the inverted trapezoidal groove 11 and the bottom of the fixed catch. When the first locking nut 20 is loosened, the first spring 21 will push the fixed catch upward out of the inverted trapezoidal groove 11. An opening and closing spring 22 is sleeved on the second hinge shaft 24. The opening and closing spring 22 is a torsion spring. When the fixed catch is pushed out of the inverted trapezoidal groove 11 and is no longer restricted by the inverted trapezoidal groove 11, the first fixed catch 17 and the second fixed catch 18 will automatically open to both sides under the action of the opening and closing spring 22.

[0028] In this embodiment, the first fixed gripping bracket 17 and the second fixed gripping bracket 18 are both made of carbon nanomaterials, and the clamping surfaces of the first fixed gripping bracket 17 and the second fixed gripping bracket 18 are both provided with heat dissipation anti-slip grooves 23 .

[0029] This embodiment also discloses an integrated fully insulated distribution network conductor support device, which is specially designed for special needs such as emergency repairs, and is a lightweight product with efficient repair characteristics. Its integrated design abandons the complicated links of separate material collection and multiple pole-mounting in the traditional distribution line erection operation system, greatly shortens the construction time, and effectively improves the overall efficiency of emergency repair work.

[0030] Specifically, Figures 5 to 8 As shown, the integrated fully insulated power distribution network conductor support device comprises a pole 1, an insulating cross arm mounted on the top of the pole 1, and a wire hanging fitting 4 mounted on the end of the insulating cross arm. The wire hanging fitting 4 adopts the structure as described above.

[0031] The pole 1 is a tapered pole body with a thick bottom and a thin top, and is made of composite insulating material through an integrated molding process. The insulating cross arm is assembled on the top of the pole 1, including a first insulating cross arm 2 and a second insulating cross arm 3. Fig.14 As shown, the tail of the first insulating cross arm 2 extends along the length direction of the first insulating cross arm 2, and the tail is provided with an annular groove 38 for assembling the hanging wire fitting 4; Fig.15As shown, the tail of the second insulating cross arm 3 is vertically tilted upward, perpendicular to the length direction of the second insulating cross arm 3, and the tail is also provided with an annular groove 38 for assembling the hanging wire fitting 4. Further, the first insulating cross arm 2 is assembled on the top of the pole 1 through the first connecting seat 25, as shown in FIG. Fig. 9 and Fig.10 As shown, the first connection seat 25 includes an end cap 27, a first screw 28 and a first nut 29. The end cap 27 is buckled on the top of the pole 1; the first screw 28 is passed through the pole 1 and the end cap 27. Generally, the first screw 28 includes at least two parallel screws; the first nut 29 is threadedly assembled on the first screw 28 to prevent the first screw 28 from detaching from the end cap 27 or the pole 1.

[0032] The end of the first insulating cross arm 2 is sleeved on the first screw rod 28. When the first nut 29 is tightened, the first screw rod 28 is stretched to generate an axial preload force that can press the first insulating cross arm 2 against the side of the end cover 27, thereby fixing it on the top of the pole 1.

[0033] The second insulating cross arm 3 is assembled on the top of the pole 1 through the second connecting seat 26 and is located below the first insulating cross arm 2. Figures 11 to 13 As shown, the second connection seat 26 includes a left half body 30 and a right half body 31. After the left half body 30 and the right half body 31 are matched, a clamping groove 32 for clamping the pole 1 is formed at the joint surface to achieve assembly and fixation on the pole 1. Further, after the left half body 30 and the right half body 31 are matched, they are connected by at least two sets of bolt groups. In this embodiment, two sets of bolt groups are used, and each set of bolt groups includes a second screw rod 33 and a second nut 34. When the second nut 34 is tightened, a pre-tightening force can be applied to the left half body 30 and the right half body 31 to ensure that the joint surface is pressed.

[0034] In this embodiment, the first screw 28 , the first nut 29 , the second screw 33 and the second nut 34 are all covered with an insulating sheath 36 .

[0035] The end of the second insulating cross arm 3 is sleeved on the bolt group. Fig.13 As shown, in this embodiment, the left half body 30 and the right half body 31 are both fixed with positioning blocks 35, and the positioning blocks 35 are pressed and fixed on the side surfaces of the left half body 30 and the right half body 31 by the pre-tightening force applied by the bolt group. The positioning blocks 35 use the groove positioning principle in the prior art to position the second insulating cross arm 3 in a horizontal or vertical state (when it is limited to the horizontal state, it is achieved by using the horizontal horizontal groove formed by the positioning block 35 and the left half body 30 or the right half body 31; when it is limited to the vertical state, it is achieved by using the original groove on the left half body 30 or the right half body 31, and cooperating with the positioning blocks 35 for side support).

[0036] According to the line requirements, the integrated fully insulated distribution network conductor support device disclosed in this embodiment can be a single-insulated cross-arm structure or a double-insulated cross-arm structure. Figure 5 , Figure 6 As shown, it is a single-insulated cross-arm structure, suitable for single-circuit line installation; Figure 7 , Figure 8 As shown, it is a double-insulated cross-arm structure, suitable for dual-circuit line installation.

[0037] During transportation, loosen the first nut 29, rotate the first insulating cross arm 2 to face downward, fold it to one side of the pole 1, and then tighten the first nut 29; loosen the second nut 34, rotate the second insulating cross arm 3 to face upward, fold it to one side of the pole 1, and then tighten the second nut 34; finally, the structure is formed as shown in the figure. Figure 6 or Figure 8 The state shown in the figure can be packaged in wooden box 37. Fig.16 As shown, cross arm collision can be avoided during transportation.

[0038] During installation, the first insulating cross arm 2 and the second insulating cross arm 3 are unfolded to form a Figure 5 or Figure 7 The state shown can be constructed and installed.

[0039] It should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wire hanging fitting, characterized in that: It includes a main body locking device and a wire fixing fixture assembled on the main body locking device; The main body locking device comprises a first locking seat and a second locking seat which are hingedly connected, the first locking seat and the second locking seat are fixed by a connecting piece after being matched, and a clamping groove for holding the end of the insulator is formed at the joint surface; The wire fixing clamp is a clamping structure, and at least one wire fixing clamp is respectively assembled on the first locking seat and the second locking seat.

2. The wire hanging fitting according to claim 1, characterized in that: An inverted trapezoidal groove is provided on the first locking seat and the second locking seat, and a through hole penetrating the first locking seat or the second locking seat is provided at the bottom of the inverted trapezoidal groove.

3. The wire hanging fitting according to claim 2, characterized in that: The wire fixing fixture comprises a first fixed catch and a second fixed catch hingedly connected via a second hinge shaft, a first articulated bolt assembled on the second articulated shaft, and a first locking nut used in conjunction with the first articulated bolt; The first fixed gripping bracket and the second fixed gripping bracket are assembled in the inverted trapezoidal groove; The first articulated bolt is inserted into the through hole; the first locking nut is threadably assembled on the first articulated bolt and abuts against the bottom of the through hole.

4. The wire hanging fitting according to claim 3, characterized in that: A first spring is sleeved on the first movable bolt, and the first spring is restricted between the bottom of the inverted trapezoidal groove and the bottom of the fixed catch.

5. The wire hanging fitting according to claim 4, characterized in that: An opening and closing spring is sleeved on the second hinge shaft, and the opening and closing spring is a torsion spring.

6. The wire hanging fitting according to any one of claims 3 to 5, characterized in that: The first fixed gripping support and the second fixed gripping support are both made of carbon nanomaterials; and heat dissipation and anti-slip grooves are provided on the clamping surfaces of the first fixed gripping support and the second fixed gripping support.

7. The wire hanging fitting according to any one of claims 1 to 5, characterized in that: The connecting piece includes a second movable bolt and a second locking nut used in conjunction with each other; A hinge block is fixedly disposed on the first locking seat, and a limit block is fixedly disposed on the second locking seat. When the first locking seat and the second locking seat are aligned, the hinge block corresponds to the limit block. The second articulated bolt is hinged on the articulated block; the second locking nut is threadedly assembled on the second articulated bolt, and when the second locking nut is restricted on the limiting block, the first locking seat is fixed to the second locking seat.

8. An integrated fully insulated power distribution network conductor support device, comprising a pole, a first insulating cross arm and a second insulating cross arm mounted on the top of the pole; characterized in that: It also includes a wire hanging fitting assembled on the first insulating cross arm and the second insulating cross arm, and the wire hanging fitting is the wire hanging fitting according to any one of claims 1 to 7.

9. The integrated fully insulated power distribution network conductor support device according to claim 8, characterized in that: The first insulating cross arm is assembled on the top of the pole through a first connecting seat; the first connecting seat comprises an end cap for buckling on the top of the pole, at least one first screw rod passing through the pole and the end cap, and a first nut threadedly assembled on the first screw rod; The end of the first insulating cross arm is assembled on the first screw rod. When the first nut is tightened, the first screw rod is stretched to generate an axial pre-tightening force to press the first insulating cross arm against the side surface of the end cover.

10. The integrated fully insulated power distribution network conductor support device according to claim 8 or 9, characterized in that: The second insulating cross arm is assembled on the top of the pole through a second connecting seat and is located below the first insulating cross arm; The second connecting seat comprises a left half and a right half, wherein a clamping groove for clamping the pole is formed at the joint surface after the left half and the right half are matched; the left half and the right half are connected by at least two sets of bolts after being matched, and a pre-tightening force is applied to ensure that the joint surface is pressed tightly; The end of the second insulating cross arm is assembled on the bolt group, and positioning blocks for positioning the second insulating cross arm in a horizontal or vertical state are fixed on the left half body and the right half body.

Images