Combined cable terminal pole with adjustable cable support

Abstract

The invention relates to the technical field of cable terminal rods, in particular to a combined cable terminal rod with an adjustable cable support, which comprises a first assembly rod and a plurality of second assembly rods, limiting mechanisms are arranged in the upper ends of the first assembly rod and the second assembly rods, and the second assembly rods are mounted at the upper end of the first assembly rod. T-shaped guide grooves are formed in the two sides of the second assembling rod correspondingly, and a plurality of T-shaped bases are installed in the T-shaped guide grooves. The first assembly rod 1 and the second assembly rods are installed together to form the cable terminal rod, the T-shaped seats are installed on the two sides of the second assembly rods according to the actual use condition, the angle of the first cross rod can be adjusted, the second cross rod can extend out of the first cross rod, and therefore the cable terminal rod is formed. When the conditions of topographic relief, line corner and building blocking are met, the problems can be solved by adjusting the angle of the first cross rod and the extending length of the second cross rod.

Description

Technical Field

[0001] This invention relates to the field of cable terminal pole technology, specifically to an adjustable combined cable terminal pole. Background Technology

[0002] As a key node device connecting overhead lines and underground cables in a power system, the core function of cable terminal poles is to safely and reliably support and fix cable terminations, surge arresters, grounding devices, and other auxiliary equipment. Cable supports are the core components on the terminal poles that directly bear the load and determine the cable route, bending radius, and phase-to-phase distance. The rationality of their design directly affects the operational safety, lifespan, and installation and maintenance efficiency of the line.

[0003] For example, Chinese patent CN203531485U discloses a high-voltage transmission cable terminal pole, which includes a pole body, a crossarm, and a cable terminal support for installing cable terminal heads. The crossarm includes a conductor crossarm, and both the conductor crossarm and the cable terminal support are fixed to the pole body. The conductor crossarm is provided with a surge arrester hanging ring for installing a surge arrester.

[0004] The aforementioned patent uses surge arrester hanging rings on the conductor crossarm to eliminate the need for surge arresters to be installed on the cable terminal support. This reduces the area of ​​the cable terminal support by only installing the cable terminal head. However, the above solution has the following drawbacks: Since the crossarm in the aforementioned patent is rigidly fixed to the outside of the pole by welding or bolting, the extension length and installation angle of the crossarm are determined in the factory prefabrication and cannot be adjusted. However, in actual engineering, when faced with undulating terrain, line bends, building obstructions, or intersections with existing pipelines, the completely fixed crossarm often cannot be adjusted in length and angle, making it difficult to adapt to the complex spatial constraints on site and causing construction difficulties. Therefore, we have introduced a modular cable terminal pole with adjustable cable support. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable combined cable terminal rod for cable supports to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An adjustable combined cable terminal pole includes a first assembly pole and several second assembly poles. The upper ends of the first assembly pole and the second assembly poles are provided with limiting mechanisms. Several second assembly poles are installed on the upper end of the first assembly pole. T-shaped guide grooves are opened on both sides of the second assembly poles. Several T-shaped seats are installed in the T-shaped guide grooves. A first crossbar is installed on the outside of the T-shaped seats. A second crossbar is movably connected inside the first crossbar. A plug shaft is movably connected to one side of the first crossbar. A first bevel gear is fixedly connected to one end of the plug shaft. The first bevel gear meshes with a second bevel gear. One end of the second bevel gear is fixedly connected to a lead screw. The lead screw is movably connected inside the first crossbar. The end of the lead screw away from the second bevel gear is screwed into the second crossbar.

[0007] Preferably, the limiting mechanism includes a plurality of T-shaped limiting rods, the T-shaped limiting rods being slidably connected in the limiting cavity, and the upper ends of the first assembly rod and the second assembly rod are each provided with limiting cavities. A support spring is fixedly connected in the limiting cavity, and the other end of the support spring is fixedly connected to the T-shaped limiting rod. The end of the T-shaped limiting rod away from the limiting cavity is inclined.

[0008] Preferably, the T-shaped guide groove has a plurality of first screw holes, and the T-shaped seat has a plurality of first screws, the first screws being screwed into the first screw holes.

[0009] Preferably, a snap-fit ​​ring is fixedly connected to the lower end of the second assembly rod, and snap-fit ​​grooves are provided at the upper ends of both the first and second assembly rods. The snap-fit ​​ring is snapped into the snap-fit ​​grooves, and several limiting holes are provided on the outer side of the snap-fit ​​ring. One end of the T-shaped limiting rod is snapped into the limiting hole.

[0010] Preferably, guide blocks are fixedly connected to both sides of the second crossbar, and the guide blocks slide within guide grooves. Guide grooves are also provided on both sides of the first crossbar. Both the first and second crossbars have several second threaded holes at their upper ends. A second screw is provided at the upper end of the first crossbar, and the second screw is threaded into one of the second threaded holes. Several first through holes are provided on the outer side of the first crossbar, and several second through holes are provided inside the T-shaped seat. The first crossbar is installed together with the T-shaped seat by means of limiting bolts passing through the first and second through holes.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: by installing the first assembly rod 1 and several second assembly rods together to form a cable terminal rod, and installing several T-shaped seats on both sides of the second assembly rod according to the actual use, the angle of the first crossbar can be adjusted, and the second crossbar can extend from the first crossbar. When encountering terrain undulations, line bends, or building obstructions, the above problems can be avoided by adjusting the angle of the first crossbar and the extension length of the second crossbar, thereby improving construction efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram illustrating the connection relationship between the second assembly rod and the T-shaped seat of the present invention; Figure 3This is a three-dimensional structural diagram of the T-shaped seat and the first crossbar of the present invention in a separated state; Figure 4 This is a three-dimensional structural diagram of the first crossbar of the present invention in its undeployed state; Figure 5 This is a three-dimensional structural diagram of the T-shaped limiting rod of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the second assembly rod of the present invention.

[0013] In the diagram: 1. First assembly rod; 2. Second assembly rod; 3. Second crossbar; 4. Second screw hole; 5. T-shaped guide groove; 6. Guide groove; 7. Insert shaft; 8. First crossbar; 9. Second through hole; 10. Snap-fit ​​groove; 11. T-shaped limiting rod; 12. Support spring; 13. Limiting cavity; 14. Second screw; 15. T-shaped seat; 16. Snap-fit ​​ring; 17. First through hole; 18. Limiting bolt; 19. First bevel gear; 20. Second bevel gear; 21. Lead screw; 22. Guide block; 23. First screw; 24. First screw hole; 25. Limiting hole. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-6 The present invention provides a technical solution: Example 1: An adjustable combined cable terminal pole includes a first assembly pole 1 and several second assembly poles 2. Both the first assembly pole 1 and the second assembly poles 2 are hollow. Each of the first assembly pole 1 and the second assembly poles 2 has a limiting mechanism at its upper end, which limits the second assembly pole 2 to the upper end of the first assembly pole 1. Several second assembly poles 2 are installed on the upper end of the first assembly pole 1. T-shaped guide grooves 5 are opened on both sides of the second assembly poles 2. The lower side of the T-shaped guide grooves 5 has an opening, which allows the T-shaped seat 15 to enter the T-shaped guide grooves 5.

[0016] Several T-shaped seats 15 are installed in the T-shaped guide groove 5. A first crossbar 8 is installed on the outside of the T-shaped seat 15. A second crossbar 3 is movably connected inside the first crossbar 8. The T-shaped seat 15 is hoisted to the outside of the second assembly rod 2. The T-shaped seat 15 is inserted into the T-shaped guide groove 5 through the opening on the lower side of the T-shaped guide groove 5. After adjusting the height, the first screw 23 is screwed into the corresponding first screw hole 24 to fix the T-shaped seat 15.

[0017] A plug shaft 7 is movably connected to one side of the first crossbar 8. One end of the plug shaft 7 has a hole. By inserting a wrench into the hole, the plug shaft 7 can be rotated. One end of the plug shaft 7 is fixedly connected to a first bevel gear 19, which meshes with a second bevel gear 20. One end of the second bevel gear 20 is fixedly connected to a lead screw 21. The lead screw 21 is movably connected inside the first crossbar 8, and the end of the lead screw 21 away from the second bevel gear 20 is screwed into the second crossbar 3.

[0018] Example 2: Based on Embodiment 1, in order to temporarily limit the second assembly rod 2 after it is hoisted to the upper end of the first assembly rod 1, the limiting mechanism includes several T-shaped limiting rods 11. The T-shaped limiting rods 11 are slidably connected in the limiting cavity 13. The upper ends of both the first assembly rod 1 and the second assembly rod 2 are provided with limiting cavities 13. A support spring 12 is fixedly connected in the limiting cavity 13. The other end of the support spring 12 is fixedly connected to the T-shaped limiting rod 11. The end of the T-shaped limiting rod 11 away from the limiting cavity 13 is inclined. The locking ring 16 at the lower end of the second assembly rod 2 is inserted into the locking ring. During the insertion process, the T-shaped limiting rod 11 is inclined at one end, and the locking ring 16 will press the T-shaped limiting rod 11 into the limiting cavity 13. At this time, the support spring 12 is compressed. When the limiting hole 25 in the locking ring 16 moves to the position of the T-shaped limiting rod 11, the T-shaped limiting rod 11 will be locked into the limiting hole 25 under the elastic force of the support spring 12. At this time, the second assembly rod 2 is limited to the upper end of the first assembly rod 1. The connection between the first assembly rod 1 and the second assembly rod 2 can be fixed by bolts.

[0019] The T-shaped guide groove 5 has several first screw holes 24, and the T-shaped seat 15 has several first screws 23. The first screws 23 are screwed into the first screw holes 24. The lower end of the second assembly rod 2 is fixedly connected to a snap ring 16. The upper ends of the first assembly rod 1 and the second assembly rod 2 are both provided with snap grooves 10. The snap ring 16 is snapped into the snap grooves 10. The outer side of the snap ring 16 is provided with several limiting holes 25. One end of the T-shaped limiting rod 11 is snapped into the limiting hole 25.

[0020] Guide blocks 22 are fixedly connected to both sides of the second crossbar 3. The guide blocks 22 slide in the guide groove 6. Guide grooves 6 are opened on both sides of the first crossbar 8. The guide blocks 22 slide in the guide grooves 6 to limit the second crossbar 3. Several second screw holes 4 are opened at the upper ends of the first crossbar 8 and the second crossbar 3. A second screw 14 is provided at the upper end of the first crossbar 8. The second screw 14 is screwed into one of the second screw holes 4. When the second crossbar 3 extends, the second screw 14 is screwed into two of the second screw holes 4 to limit the second crossbar 3. At the same time, the corresponding components can be mounted on the upper ends of the first crossbar 8 and the second crossbar 3 through the several second screw holes 4.

[0021] The first crossbar 8 has several first through holes 17 on its outer side, and the T-shaped seat 15 has several second through holes 9 inside. The first crossbar 8 is installed together with the T-shaped seat 15 by passing through the first through holes 17 and the second through holes 9 with limiting bolts 18.

[0022] Working principle: During use, the first assembly rod 1 is installed in the construction area, and then the second assembly rod 2 is installed on the upper end of the first assembly rod 1. Specifically, the second assembly rod 2 is hoisted to the upper end of the first assembly rod 1, so that the snap ring 16 at the lower end of the second assembly rod 2 is inserted into the snap groove 10. During the insertion process, since one end of the T-shaped limiting rod 11 is set in an inclined position, the snap ring 16 will squeeze the T-shaped limiting rod 11 into the limiting cavity 13. At this time, the support spring 12 is compressed. When the limiting hole 25 located in the snap ring 16 moves to the position of the T-shaped limiting rod 11, the T-shaped limiting rod 11 will snap into the limiting hole 25 under the elastic force of the support spring 12. At this time, the second assembly rod 2 is limited to the upper end of the second assembly rod 2. The connection between the first assembly rod 1 and the second assembly rod 2 can be fixed by bolts. Hoist the T-shaped seat 15 to the outside of the second assembly rod 2. Insert the T-shaped seat 15 into the T-shaped guide groove 5 through the opening on the lower side of the T-shaped guide groove 5. After adjusting the height, screw the first screw 23 into the corresponding first screw hole 24 to fix the T-shaped seat 15. According to the above method, several T-shaped seats 15 can be installed into the T-shaped guide groove 5 in sequence according to the actual use. After unfolding the first crossbar 8 to a suitable position, the first crossbar 8 and the T-shaped seat 15 are connected together by passing the limiting bolt 18 through the first through hole 17 and the second through hole 9 in sequence. Adjust the extension length of the second crossbar 3 according to the usage. Specifically, insert a wrench into the plug shaft 7 and rotate the wrench to drive the plug shaft 7 to start rotating. The rotation of the plug shaft 7 drives the first bevel gear 19 to rotate. At this time, the second bevel gear 20 will follow and rotate. The rotation of the second bevel gear 20 drives the lead screw 21 to rotate. Since one end of the lead screw 21 is screwed into the second crossbar 3, the second crossbar 3 will move out from the first crossbar 8 during the rotation of the lead screw 21. When the second crossbar 3 moves to the appropriate position, stop rotating the plug shaft 7. According to the actual usage, the second assembly rod 2 can be installed on the upper end of the already installed second assembly rod 2.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable combined cable terminal pole for cable supports, characterized in that: It includes a first assembly rod and several second assembly rods. The upper ends of the first assembly rod and the second assembly rods are provided with limiting mechanisms. Several second assembly rods are installed on the upper end of the first assembly rod. T-shaped guide grooves are opened on both sides of the second assembly rods. Several T-shaped seats are installed in the T-shaped guide grooves. A first crossbar is installed on the outside of the T-shaped seat. A second crossbar is movably connected inside the first crossbar. A plug shaft is movably connected to one side of the first crossbar. A first bevel gear is fixedly connected to one end of the plug shaft. The first bevel gear meshes with a second bevel gear. One end of the second bevel gear is fixedly connected to a lead screw. The lead screw is movably connected inside the first crossbar. The end of the lead screw away from the second bevel gear is screwed into the second crossbar.

2. The adjustable combined cable terminal pole according to claim 1, characterized in that: The limiting mechanism includes several T-shaped limiting rods, which are slidably connected in the limiting cavity. The upper ends of the first assembly rod and the second assembly rod are each provided with a limiting cavity. A support spring is fixedly connected in the limiting cavity. The other end of the support spring is fixedly connected to the T-shaped limiting rod. The end of the T-shaped limiting rod away from the limiting cavity is inclined.

3. The adjustable combined cable terminal pole according to claim 1, characterized in that: The T-shaped guide groove has several first screw holes, and the T-shaped seat has several first screws, which are screwed into the first screw holes.

4. The adjustable combined cable terminal pole according to claim 2, characterized in that: The lower end of the second assembly rod is fixedly connected to a snap ring. The upper ends of both the first and second assembly rods are provided with snap grooves. The snap ring is snapped into the snap groove. Several limiting holes are provided on the outer side of the snap ring. One end of the T-shaped limiting rod is snapped into the limiting hole.

5. The adjustable combined cable terminal pole according to claim 1, characterized in that: Guide blocks are fixedly connected to both sides of the second crossbar, and the guide blocks slide in the guide groove. Guide grooves are also provided on both sides of the first crossbar. Several second threaded holes are provided at the upper ends of both the first and second crossbars. A second screw is provided at the upper end of the first crossbar, and the second screw is threaded into one of the second threaded holes. Several first through holes are provided on the outer side of the first crossbar, and several second through holes are provided inside the T-shaped seat. The first crossbar is installed together with the T-shaped seat by means of limiting bolts passing through the first and second through holes.

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