CN112413544A

CN112413544A - Waterproof lamp pole and mounting method

Info

Publication number: CN112413544A
Application number: CN202011110448.0A
Authority: CN
Inventors: 梁熹
Original assignee: Chengdu Huati Huicheng Technology Co ltd
Current assignee: Chengdu Huati Huicheng Technology Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-02-26

Abstract

A waterproof light pole comprising: a rod body. The cable fixing device comprises a rod body, a guide pipe, a rotating nut, a rubber ring and a waterproof cover, wherein the holes of the rod body for the cable to penetrate through are provided with rubber rings, two ends of each rubber ring are provided with outward protruding parts, the side wall of the rod body is positioned between the protruding parts, the guide pipe penetrates through the rubber rings and is used for the cable to penetrate through, the rear end of the guide pipe is provided with the rotating nut, the front end of the guide pipe is provided with a flange, the front end of the guide pipe is uniformly divided into a plurality of independent arc-shaped pieces along the circumference, the rubber; the device comprises a rod body, a baffle plate, a bent pipe, round balls and a limiting cover, wherein the baffle plate is arranged in the rod body and is of a funnel structure, the bent pipe is arranged in the middle of the baffle plate in a penetrating manner, through holes are formed in the bottom of the baffle plate along the circumference of the bent pipe, the round balls are arranged above the through holes, the density of the round balls is smaller than that of water, and the limiting cover is; the lower section of the rod body is provided with a sealing cover, and a sealing ring is arranged between the upper end of the sealing cover and the rod body. Can effectively prevent the inside corrosion of the body of rod, have good guard action to rag screw and nut.

Description

Waterproof lamp pole and mounting method

Technical Field

The invention belongs to the technical field of lighting facility application, and particularly relates to a waterproof lamp post.

Background

The lamp post is used as a main body structure of a lighting facility and is widely applied to various lighting facility devices, and the lamp post is usually made of metal and is usually made of aluminum and iron. The iron lamp pole is easy to rust due to long-time exposure outdoors, especially the root position. The bottom of the existing lamp post is generally formed by two structures. One of the lamp post structure is that the bottom of the lamp post is hollow and is directly installed on the hardened bottom surface or is buried in the bottom surface, and the structure is easy to enable moisture on the bottom surface to directly enter the interior of the lamp post, form water drops through temperature cold and heat changes, and corrode all parts in the interior of the lamp post; in addition, the bottom of the lamp pole is of a sealing structure, and due to the cold and hot temperature change of air temperature, water drops can be formed in the air inside the lamp pole and collected at the bottom of the lamp pole along the inner wall of the lamp pole, so that the bottom of the lamp pole is rusted.

In order to keep the appearance neat, most of the existing lamp poles adopt an internal wiring mode to install cables, and then holes are formed in the lamp poles to lead out the cables for supplying power to the lamps. When the lamp post is used as road lighting, various monitoring camera devices are usually additionally arranged at the later stage, and holes need to be temporarily newly added. These trompils all make the rainwater get into the lamp pole inside easily, cause the corrosion to the lamp pole.

On the other hand, current lamp pole adopts rag screw cooperation nut to fix usually to convenient installation and demolish. But the lamp pole almost all sets up outdoors, receives the rainwater corrosion easily, and rag screw and nut just are difficult to demolish after being corroded.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides the waterproof lamp post, the bottom of the waterproof lamp post is provided with the isolation plate which can prevent moisture on the bottom surface from entering the post body, and the bottom of the isolation plate is provided with the through hole for draining water, so that water drops formed by original air in the post body are prevented from being collected, and the post body can be effectively prevented from being corroded. The holes in the side wall of the rod body, which are used for threading, are provided with rubber rings and a waterproof cover, so that rainwater is prevented from entering the rod body. Still the cover is equipped with the sealed cowling outside the body of rod to protection rag screw and nut prevent to receive the rainwater corrosion, prevent simultaneously that the rainwater from getting into from body of rod bottom or side cover board. And meanwhile, the mounting seat for fixing the rod body is provided with a groove and a chute for draining water.

In order to realize the purpose of the invention, the following scheme is adopted:

a waterproof light pole comprising: the rod body is characterized in that the rod body is provided with a rod body,

the cable fixing device comprises a rod body, wherein rubber rings are arranged in holes for penetrating cables, two ends of each rubber ring are provided with outward protruding portions, the side wall of the rod body is located between the protruding portions, a guide pipe is arranged in each rubber ring in a penetrating mode and used for penetrating the cables, a rotating nut is arranged at the rear end of each guide pipe, a flange is arranged at the front end of each guide pipe, the front end of each guide pipe is evenly divided into a plurality of independent arc-shaped pieces along the circumference, each rubber ring is arranged between the corresponding flange and the corresponding rotating nut, a waterproof cover is embedded in each rubber ring, a U-shaped groove is formed in one side wall of each waterproof cover, each rubber ring is clamped in the U-shaped groove, and the side wall with the U-shaped groove is located between the outer wall of the;

the device comprises a rod body, a baffle plate, a bent pipe, round balls and a limiting cover, wherein the baffle plate is arranged in the rod body and is of a funnel structure, the bent pipe is arranged in the middle of the baffle plate in a penetrating manner, through holes are formed in the bottom of the baffle plate along the circumference of the bent pipe, the round balls are arranged above the through holes, the density of the round balls is smaller than that of water, and the limiting cover is arranged outside the round balls;

the lower section of the rod body is provided with a sealing cover, and a sealing ring is arranged between the upper end of the sealing cover and the rod body.

Furthermore, at least three arc strips are uniformly arranged in the isolation plate along the circumference, the front ends of the arc strips are arranged at the edge openings of the isolation plate, and the tail ends of the arc strips are arranged at the bottom of the isolation plate.

Further, the top opening of the elbow is oriented in the horizontal direction or lower than the horizontal direction.

Furthermore, the joint of the bottom of the isolation plate and the elbow is in an inverted cone structure.

Further, spacing cover adopts ring, top cap and three piece at least pipe preparation, the pipe is evenly located the ring inner wall, the top cap is located the pipe top, the ball slides and locates between the pipe, the pipe with the axis of the body of rod is parallel, spacing cover is connected in the outer wall of an annular cover, annular cover establish with outside the bent pipe.

Furthermore, the cable sleeve is provided with a heat shrink tube, one end of the heat shrink tube is sleeved at the tail end of the guide tube, and the other end of the heat shrink tube is sleeved on the outer wall of the cable.

Furthermore, the outer edge of the front end of the flange is processed with an oblique angle.

Furthermore, at least four positioning screws uniformly penetrate through the bottom of the sealing cover along the circumference, and the positioning screws are connected to the side wall of the connecting flange at the bottom of the rod body.

According to the mounting method for the waterproof lamp post, the waterproof rod body is mounted on a mounting seat, a wire conduit and a plurality of foundation screws are preset in the mounting seat, the wire conduit and the foundation screws are perpendicular to a horizontal plane, the wire conduit is higher than the top surface of the mounting seat by more than cm, a main cable is pre-buried in the wire conduit, the outer diameter of the wire conduit is smaller than the inner diameter of the bent pipe, the mounting seat is in a conical structure, a groove is formed in the center of the top of the mounting seat, the wire conduit is located in the center of the groove, a plurality of inclined grooves are communicated with the circumference of the groove, and the inclined grooves are obliquely arranged downwards from inside;

the installation method of the waterproof rod body comprises the following specific steps:

a. sleeving the sealing cover from the top of the lamp pole, and hoisting the lamp pole without installing the rubber sleeve on the pole body;

b. aligning the conduit with the bent pipe, inserting the main cable from the bottom of the bent pipe and out of the upper end of the bent pipe, and then continuously moving the rod body downwards to insert the conduit into the bent pipe;

c. a foot margin screw penetrates through the connecting flange of the lamp post, and is screwed tightly by a nut;

d. the bottom of the rod body is provided with a side cover plate, operation such as wiring is carried out in the side cover plate, the sealing cover is moved to the bottom of the rod body, the sealing cover is fixed through a positioning screw, and the bottom edge of the sealing cover is lower than the top surface of the mounting seat.

The invention has the beneficial effects that:

1. the inner part of the rod body can be effectively prevented from being rusted, and firstly, the bottom of the rod body is provided with a partition plate to prevent moisture on the ground from entering the inner part of the rod body; secondly, through holes are formed in the partition plate and used for discharging water drops formed by condensation of original air of the rod body, and meanwhile, round balls are arranged in the through holes and used for sealing, so that moisture is further prevented from entering the inside of the rod body; thirdly, holes for threading processed on the rod body are provided with rubber rings and a waterproof cover, so that rainwater is prevented from entering the rod body from the threading holes;

2. the anchor bolt and the nut are well protected, so that the rust is prevented, and the later-stage disassembly and assembly are facilitated;

3. the mounting seat is provided with a groove and a chute, so that water can be drained conveniently and water accumulation can be prevented;

4. the ball is arranged at the position of the through hole, and the through hole is sealed by utilizing the characteristic that the density of the ball is less than that of water, and the water draining effect is good. The position corresponding to the ball is provided with the limiting cover, so that the ball can accurately fall back into the through hole, and the through hole is sealed.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

Fig. 1 shows an exploded view of the structure of the mast body and the structure of the mount;

FIG. 2 illustrates a cross-sectional view of one embodiment of the present application;

FIG. 3 shows an internal construction of the shaft body;

FIG. 4 is a configuration diagram of a separator;

FIG. 5 shows a bottom structure of the separator;

FIG. 6 shows the configuration of the caging cap;

FIG. 7 shows the structure of the rubber ring, the conduit and the waterproof cover;

fig. 8 shows a partially enlarged view of a portion a;

FIG. 9 shows a configuration where the cable and the catheter are sealed with a heat shrink tube;

fig. 10 shows a cross-sectional view along the direction a-a.

The labels in the figure are: 1-cable, 2-heat shrinkable tube, 3-main cable, 10-rod body, 11-rubber ring, 111-bulge, 12-guide tube, 121-flange, 1211-bevel, 122-arc sheet, 13-swivel nut, 14-waterproof cover, 141-U-shaped groove, 15-side cover plate, 20-isolation plate, 201-through hole, 21-elbow, 22-ball, 23-limit cover, 231-ring, 231-top cover, 233-round tube, 24-arc strip, 30-seal cover, 31-seal ring, 32-positioning screw, 40-mounting seat, 401-groove, 402-chute, 41-guide tube and 42-foundation screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

As shown in fig. 1-8, a waterproof light pole includes: a shaft body 10.

Specifically, the whole cone structure that is of the body of rod 10, the hole that the body of rod 10 is used for wearing to establish the cable all wears to be equipped with

rubber circle

11, and 11 both ends of rubber circle all have outside bellying 111, and the lateral wall of the body of rod 10 is located between the bellying 111, utilizes the trompil on the 11 sealed bodies of rod 10 of rubber circle. Wear to be equipped with pipe 12 in the rubber circle 11, pipe 12 is used for wearing to establish cable 1, pipe 12 rear end is equipped with swivel nut 13 through threaded connection's mode, pipe 12 front end has flange 121, pipe 12 front end is evenly separated for a plurality of independent arcs piece 122 along the circumference, arcs piece 122 can be extruded and the elasticity of usable metal resumes the shape, this structure so that pipe 12 passes rubber circle 11, rubber circle 11 is located between flange 121 and swivel nut 13, utilize swivel nut 13 and flange 121 to compress tightly rubber circle 11, make its outer wall laminate inseparabler with the trompil of the body of rod 10.

Preferably, the rubber ring 11 is embedded with a waterproof cover 14, a side wall of the waterproof cover 14 is provided with a U-shaped groove 141, the rubber ring 11 is clamped in the U-shaped groove 141, and the side wall provided with the U-shaped groove 141 is located between the outer wall of the rod body 10 and the protruding portion 111 by utilizing the elasticity of the rubber material of the rubber ring 11.

During installation, firstly, the rubber ring 11 is inserted into the hole of the rod body 10, then the column arc-shaped sheet 122 is installed, the conduit 12 is inserted into the rubber ring 11, the flange 121 completely penetrates through the rubber ring 11, then the rotating nut 13 is connected with the conduit 12, the rubber ring 11 is compressed, and a cable is arranged in a penetrating mode. And finally covered with a waterproof cover 14.

Specifically, the inside division board 20 that is equipped with of body of rod 10 to prevent that moisture from getting into inside body of rod 10, division board 20 is connected inside body of rod 10 through the welding, and its circumference adopts full-length welding to seal. The division board 20 is the funnel structure, and division board 20 middle part link up and is equipped with return bend 21, and return bend 21 adopts the structure that the pipe passed division board 20, adopts full weld to seal between return bend 21 and the division board 20. The through-hole 201 has been seted up along return bend 21 circumference to division board 20 bottom and has been used for the drainage, and through-hole 2011 top all is equipped with ball 22, utilizes the sealed round hole 201 of ball 22, prevents that the moisture from getting into the body of rod 10, and the density of ball 22 is less than the density of water, utilizes the density of ball 22 to be less than the characteristics of water, can make the ball float when water, opens through-hole 201 and carries out the drainage. The sphere 201 may be made of plastic, and may be a solid structure or a hollow structure. The round balls 22 are all provided with a limiting cover 23 outside to prevent the round balls 22 from falling off and enable the round balls 22 to fall into the through holes 201 more accurately.

Specifically, a sealing cover 30 is disposed at a lower section of the rod body 10 for protecting the anchor screws 42 and the nuts and preventing corrosion. A sealing ring 31 is arranged between the upper end of the sealing cover 30 and the rod body 10, so that rainwater is prevented from entering from the joint.

More specifically, as shown in fig. 6, the limiting cover 23 is made of a circular ring 231, a top cover 232 and at least three circular tubes 233, the circular tubes 233 are uniformly arranged on the inner wall of the circular ring 231, and the top cover 232 is arranged on the top of the circular tubes 233 to prevent the round balls 22 from falling out. The sphere 22 is slidably disposed between the three round tubes 233, and the round tubes 233 are parallel to the axis of the rod body 10. When water is present at the bottom of the isolation plate 20, the round ball 22 will float up, the through hole 201 is opened for drainage, and the sealing cover 23 can ensure that the round ball 22 can accurately fall on the corresponding through hole 201 every time, so as to realize sealing.

Preferably, to facilitate the installation and fixation of all the position-limiting covers 23, the position-limiting covers 23 are connected to the outer wall of an annular sleeve 25 by welding, and the annular sleeve 25 is arranged outside the elbow 21 and connected to the elbow 21 by welding or screws.

Preferably, as shown in fig. 4, at least three arc-shaped strips 24 are uniformly arranged inside the isolation plate 20 along the circumference, the front ends of the arc-shaped strips 24 are arranged at the edge of the isolation plate 20, and the tail ends are arranged at the bottom of the isolation plate 20. Because the inner wall of the rod body 10 can not be cleaned after the manufacture is finished, the inner wall of the rod body 10 is provided with a large amount of dust or welding slag, the dust or the welding slag can be deposited at the bottom of the isolation plate 20 in the transportation or process and under the adhesion of water drops, the through hole 201 is blocked for preventing the dust or the welding slag from falling into the through hole 201, and therefore the arc-shaped strip 24 is arranged inside the isolation plate 20, 5 strips are always arranged in the embodiment, and the dust deposit and the welding slag are blocked by the arc-shaped strip 24. The arc-shaped strips 24 are connected to the separator plate 20 by means of welding.

Preferably, the top opening of the elbow 21 is oriented horizontally or below horizontal. Can effectively prevent water drops or impurities from falling into the main cable 3 from the pipe orifice to damage the main cable.

Preferably, the junction between the bottom of the partition board 20 and the elbow 21 has an inverted cone structure to facilitate the smooth insertion of the conduit 41.

Preferably, in order to further prevent rainwater from entering the interior of the rod body 10 between the cable 1 and the conduit 12, as shown in fig. 9 and 10, the cable 1 is sleeved with the heat-shrinkable tube 2, one end of the heat-shrinkable tube 2 is sleeved on the end of the conduit 12 and is compressed by the rotating nut 13, and the other end of the heat-shrinkable tube is sleeved on the outer wall of the cable 1, so as to seal the outer wall of the cable 1.

Preferably, as shown in fig. 7, 9 and 10, the outer edge of the front end of the flange 121 is formed with a bevel 1211 in order to facilitate smooth insertion of the guide tube 12 into the rubber ring 11.

Preferably, as shown in fig. 1, the sealing cap 30 is a conical structure, at least four positioning screws 32 are uniformly arranged at the bottom of the sealing cap 30 along the circumference in a penetrating manner to prevent the relative position between the sealing cap 30 and the rod body 10 from moving, and at the same time, the sealing cap 30 and the rod body 10 are coaxial by using more than four positioning screws 32, so that the sealing ring 31 and the outer circumferential side of the rod body 10 are uniformly attached to each other, thereby ensuring the sealing effect, and the positioning screws 32 are all connected to the side wall of the connecting flange at the bottom of the rod body 10.

Example 2

According to the mounting method of the waterproof lamp post, the waterproof rod body is mounted on the mounting base 40, the wire guide 41 and the plurality of anchor screws 42 are preset in the mounting base 40, the wire guide 41 and the anchor screws 42 are perpendicular to the horizontal plane, and the wire guide 41 is higher than the top surface of the mounting base 40 by more than 15cm so as to be convenient for observing the positions of the wire guide 41 and the elbow 21 during mounting. The main cable 3 is embedded in the conduit 41, the outer diameter of the conduit 41 is smaller than the inner diameter of the elbow 21, and the mounting seat 40 is in a conical structure so as to facilitate the attachment of the sealing cover 30. The top center has recess 401, and conduit 41 is located recess 401 center, and recess 401 circumference intercommunication is equipped with multichannel chute 402, and chute 402 inclines downwards from inside to outside for the drainage, and the projection of through-hole 201 at the mount pad 40 top surface all is located recess 401. The mounting base 40 is made of concrete.

a. sleeving the sealing cover 30 into the top of the rod body 10, wherein the rubber ring 11 is not installed on the rod body 10, and hoisting the rod body 10;

b. aligning the conduit 41 with the bent tube 21, allowing the main cable 3 to pass through the bent tube 21 and out of the bent tube 21, and then moving the rod 10 downward to insert the conduit 41 into the bent tube 21;

c. the anchor screws 42 penetrate through the connecting flange of the rod body 10 and are screwed tightly by nuts;

d. the bottom of the rod body 10 is provided with a side cover plate 15, the operations such as wiring and the like are carried out from the inside of the side cover plate 15, then the sealing cover 30 is moved to the bottom of the rod body 10, the sealing cover 30 is fixed by a positioning screw 32, and the bottom edge of the sealing cover 30 is lower than the top surface of the mounting seat 40 so as to prevent rainwater from immersing into the bottom of the rod body 10 from the top surface of the mounting seat 40.

The foregoing is only a preferred embodiment of the present invention and is not intended to be exhaustive or to limit the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.

Claims

1. A waterproof light pole comprising: a rod body (10) characterized in that,

the hole that body of rod (10) is used for wearing to establish the cable all wears to be equipped with rubber circle (11), rubber circle (11) both ends all have outside bellying (111), the lateral wall of body of rod (10) is located between bellying (111), wear to be equipped with pipe (12) in rubber circle (11), pipe (12) are used for wearing to establish cable (1), pipe (12) rear end is equipped with swivel nut (13), pipe (12) front end has flange (121), pipe (12) front end is evenly separated for a plurality of independent arcs piece (122) along the circumference, rubber circle (11) are located flange (121) with between swivel nut (13), rubber circle (11) are inlayed and are equipped with a waterproof cover (14), waterproof cover (14) a lateral wall has U type groove (141), rubber circle (11) block in U type groove (141), the side wall with the U-shaped groove (141) is positioned between the outer wall of the rod body (10) and the boss (111);

the water-saving device is characterized in that a partition plate (20) is arranged in the rod body (10), the partition plate (20) is of a funnel structure, a bent pipe (21) is arranged in the middle of the partition plate (20) in a penetrating mode, through holes (201) are formed in the bottom of the partition plate (20) along the circumference of the bent pipe (21), round balls (22) are arranged above the through holes (201), the density of the round balls (22) is smaller than that of water, and limiting covers (23) are arranged outside the round;

the lower section of the rod body (10) is provided with a sealing cover (30), and a sealing ring (31) is arranged between the upper end of the sealing cover (30) and the rod body (10).

2. The waterproof lamp post according to claim 1, wherein at least three arc-shaped strips (24) are uniformly arranged inside the isolating plate (20) along the circumference, the front ends of the arc-shaped strips (24) are arranged at the edge of the isolating plate (20), and the tail ends of the arc-shaped strips are arranged at the bottom of the isolating plate (20).

3. A waterproof lamp post according to claim 1, wherein the top opening of the elbow (21) faces in the horizontal direction or below the horizontal direction.

4. The waterproof lamp post according to claim 1, wherein the joint between the bottom of the partition board (20) and the elbow (21) is in an inverted cone structure.

5. The waterproof lamp post according to claim 1, wherein the limiting cover (23) is made of a circular ring (231), a top cover (232) and at least three circular tubes (233), the circular tubes (233) are uniformly arranged on the inner wall of the circular ring (231), the top cover (232) is arranged on the top of each circular tube (233), the circular balls (22) are slidably arranged between the circular tubes (233), the circular tubes (233) are parallel to the axis of the rod body (10), the limiting cover (23) is connected to the outer wall of an annular sleeve (25), and the annular sleeve (25) is arranged outside the elbow (21).

6. The waterproof lamp post according to claim 1, wherein the cable (1) is sleeved with a heat-shrinkable tube (2), one end of the heat-shrinkable tube (2) is sleeved at the tail end of the guide tube (12), and the other end of the heat-shrinkable tube is sleeved on the outer wall of the cable (1).

7. The waterproof lamp post according to claim 1, wherein the outer edge of the front end of the flange (121) is provided with a bevel (1211).

8. The waterproof lamp post according to claim 1, wherein at least four positioning screws (32) are uniformly arranged at the bottom of the sealing cover (30) along the circumference in a penetrating manner, and the positioning screws (32) are connected to the side wall of the connecting flange at the bottom of the post body (10).

9. A method of installation for a waterproof light pole as claimed in any one of claims 1 to 8, it is characterized in that the waterproof rod body is arranged on a mounting seat (40), a conduit (41) and a plurality of anchor screws (42) are preset on the mounting seat (40), the wire conduit (41) and the foundation screw (42) are both vertical to the horizontal plane, the wire conduit (41) is higher than the top surface of the mounting seat (40) by more than 15cm, the main cable (3) is embedded in the conduit (41), the outer diameter of the conduit (41) is smaller than the inner diameter of the elbow (21), the mounting seat (40) is in a conical structure, the center of the top of the mounting seat is provided with a groove (401), the conduit (41) is positioned in the center of the groove (401), a plurality of inclined grooves (402) are formed in the circumference of the groove (401) in a communication mode, and the inclined grooves (402) are arranged from inside to outside in an inclined and downward mode;

sleeving a sealing cover (30) into the top of the rod body (10), wherein the rubber ring (11) is not installed on the rod body (10), and hoisting the rod body (10);

the wire conduit (41) is aligned with the bent pipe (21), the main cable (3) can penetrate into the bottom of the bent pipe (21) and penetrate out of the upper end of the bent pipe (21), and then the rod body (10) is continuously moved downwards to enable the wire conduit (41) to be inserted into the bent pipe (21);

an anchor screw (42) penetrates through a connecting flange of the rod body (10) and is screwed down by a nut;

the bottom of the rod body (10) is provided with a side cover plate (15), operation such as wiring is carried out in the side cover plate (15), then the sealing cover (30) is moved to the bottom of the rod body (10), the sealing cover (30) is fixed by a positioning screw (32), and the bottom edge of the sealing cover (30) is lower than the top surface of the mounting seat (40).