Power transmission line connecting device

Abstract

The utility model belongs to the technical field of splicing sleeves, and discloses a power transmission line splicing device which comprises a splicing sleeve body, a copper column is fixed in the middle of the inner side of the splicing sleeve body, rectangular wiring grooves are formed in the two ends of the copper column, pressing plates are installed in the rectangular wiring grooves, and the top faces of the pressing plates are elastically connected with the inner top faces of the rectangular wiring grooves through springs. One end of the pressing plate extends out of the rectangular wiring groove and inclines towards the inner top surface of the splicing sleeve body; the two ends of the splicing sleeve body are in threaded connection with end covers, one end, close to the copper column, of each end cover is provided with a conical hole capable of pressing the corresponding pressing plate to the inner bottom face of the corresponding rectangular wiring groove, and the other end of each end cover is provided with a line insertion hole coaxially communicated with the corresponding conical hole. And a power transmission line is arranged between the pressing plate and the inner bottom surface of the rectangular wiring groove after sequentially passing through the line plugging hole and the conical hole. According to the utility model, through double pressing of the spring and the end cover on the pressing plate, the power transmission line can be connected more stably.

Description

Technical Field

[0001] This utility model belongs to the field of splicing pipe technology, specifically relating to a power transmission line splicing device. Background Technology

[0002] Overhead power transmission lines are power lines erected on the ground, insulated by insulators and air. An overhead line consists of conductors, an overhead ground wire, insulator strings, towers, and grounding devices. The conductors, responsible for conducting current, must have sufficient cross-section to maintain a reasonable current density. Since the conductors are always at a high potential, to reduce energy loss and electromagnetic interference caused by corona discharge, they should also have a large radius of curvature. Connecting conduits, as materials used in power engineering, serve to connect the conductors.

[0003] The connection between the two splicing pipes of the existing overhead power transmission line jumper is unstable and not securely fixed, and the installation is time-consuming and labor-intensive, which reduces work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a power transmission line splicing device to solve the aforementioned problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A power transmission line splicing device includes a splicing tube body, a copper column fixed in the middle of the inner side of the splicing tube body, and rectangular wiring grooves at both ends of the copper column. A pressure plate is installed in the rectangular wiring groove, and the top surface of the pressure plate is elastically connected to the inner top surface of the rectangular wiring groove by a spring. One end of the pressure plate extends out of the rectangular wiring groove and is inclined towards the inner top surface of the splicing tube body. Both ends of the splicing tube body are threadedly connected to end caps. The end of the end cap near the copper column is provided with a conical hole that can press the pressure plate against the inner bottom surface of the rectangular wiring groove. The other end of the end cap is provided with a line insertion hole coaxially connected to the conical hole, so that the power transmission line can pass through the line insertion hole and the conical hole in sequence and be placed between the pressure plate and the inner bottom surface of the rectangular wiring groove.

[0007] As a preferred technical solution of this utility model, one end of the end cap is integrally connected to a limiting ring, the inner wall of the limiting ring smoothly transitions with the inner wall of the conical hole, one end of the pressure plate extends into the limiting ring, and one end of the pressure plate has an arc-shaped head structure.

[0008] As a preferred technical solution of this utility model, the other end of the end cap is provided with an operating ring extending outward to the body of the connecting tube.

[0009] As a preferred technical solution of this utility model, the operating ring is provided with an external thread, and a sealing sleeve is installed at the end of the operating ring away from the copper pillar. The end of the sealing sleeve near the operating ring is provided with a threaded hole, and the threaded hole of the sealing sleeve is threadedly connected to one end of the operating ring. An annular mounting groove is provided between one end of the operating ring and the sealing sleeve, and a sealing ring is squeezed in the annular mounting groove.

[0010] As a preferred technical solution of this utility model, the sealing sleeve has a polygonal shape.

[0011] As a preferred technical solution of this utility model, the other end of the pressure plate is slidably connected to the rectangular wiring groove in the vertical direction.

[0012] As a preferred technical solution of this utility model, a T-shaped limiting post is connected to the top surface of the other end of the pressure plate, a T-shaped sliding groove is opened on the inner top surface of the rectangular wiring groove, the upper part of the T-shaped limiting post is slidably connected in the T-shaped sliding groove, the spring is sleeved on the outside of the T-shaped limiting post, and the two ends of the spring abut against the other end of the pressure plate and the inner top surface of the rectangular wiring groove, respectively.

[0013] As a preferred technical solution of this utility model, the upper part of the T-shaped groove penetrates the top surface of the copper column, and the lower end of the T-shaped limiting column is threadedly connected to the pressure plate.

[0014] Beneficial Effects: During construction, the end of the transmission line is first passed through the line insertion hole and the conical hole. Then, the end of the transmission line is inserted between the pressure plate and the inner bottom surface of the rectangular wiring groove. At this time, the compressed spring provides a downward force to the pressure plate, causing the pressure plate to press the end of the transmission line tightly. Next, the end cap is installed at the end of the splice tube body, and the end cap is screwed inwards into the splice tube body, causing the conical hole to press down on the pressure plate, further pressing the end of the transmission line tightly, thus achieving a stable connection of the transmission line. This invention, through the double pressure of the spring and the end cap on the pressure plate, enables a more stable connection of the transmission line. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention;

[0016] Figure 2 This is the front view of the present invention.

[0017] In the diagram: 1-Connecting tube body; 2-Copper pillar; 201-Rectangular wiring groove; 3-Pressure plate; 4-Spring; 5-End cap; 501-Conical hole; 502-Line insertion hole; 503-Limiting ring; 504-Operating ring; 6-Sealing sleeve; 7-Sealing ring. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0019] Example:

[0020] like Figure 1 and Figure 2 As shown, this embodiment provides a power transmission line splicing device, including a splicing pipe body 1. A copper column 2 is fixed in the middle of the inner side of the splicing pipe body 1. Rectangular wiring grooves 201 are opened at both ends of the copper column 2. The ends of two power transmission lines can be placed in the two rectangular wiring grooves 201, and then the power transmission lines can be spliced ​​through the copper column 2. A pressure plate 3 is installed in the rectangular wiring groove 201. The top surface of the pressure plate 3 is elastically connected to the inner top surface of the rectangular wiring groove 201 through a spring 4. In practice, the end of the power transmission line can be placed between the pressure plate 3 and the inner bottom surface of the rectangular wiring groove 201, and then the power transmission line can be pressed by the elastic force of the spring 4. In the initial stage, the pressure plate 3 can directly contact the inner bottom surface of the rectangular wiring groove 201, or it can be directly contacted by the rectangular wiring groove 201. A certain gap is left between the inner bottom surfaces of the cable tray 201, making it easier for the transmission line to be inserted between the pressure plate 3 and the inner bottom surface of the rectangular cable tray 201. Simultaneously, one end of the pressure plate 3 extends outside the rectangular cable tray 201 and tilts towards the inner top surface of the connector body 1. Therefore, when the transmission line is inserted, the end of the transmission line can abut against one end of the pressure plate 3, allowing the pressure plate 3 to slide upwards. Simultaneously, one end of the pressure plate 3 can guide the transmission line so that its end is inserted between the pressure plate 3 and the inner bottom surface of the rectangular cable tray 201. Based on the above, both ends of the connector body 1 are threadedly connected to end caps 5. The end cap 5 near the copper pillar 2 has a conical hole 501 that can press the pressure plate 3 against the inner bottom surface of the rectangular cable tray 201. Figure 1 As shown, the outer wall of the conical hole 501 near the copper pillar 2 is relatively thin, so that one end of the conical hole 501 can be located outside the pressure plate 3, that is, one end of the pressure plate 3 extends into the conical hole 501. The other end of the end cover 5 is provided with a line plug hole 502 that is coaxially connected with the conical hole 501, so that the power transmission line can pass through the line plug hole 502 and the conical hole 501 in sequence and then be placed between the pressure plate 3 and the bottom surface of the rectangular wiring groove 201.

[0021] During construction, the end of the transmission line is first passed through the line insertion hole 502 and the conical hole 501. Then, the end of the transmission line is inserted between the pressure plate 3 and the inner bottom surface of the rectangular wiring groove 201. At this time, the compressed spring 4 can exert a downward force on the pressure plate 3, causing the pressure plate 3 to press the end of the transmission line tightly. Then, the end cap 5 is installed at the end of the connecting tube body 1, and the end cap 5 is screwed inward into the connecting tube body 1, so that the conical hole 501 presses down on the pressure plate 3, causing the pressure plate 3 to further press the end of the transmission line, thus achieving a stable connection of the transmission line. This invention, through the double pressure of the spring 4 and the end cap 5 on the pressure plate 3, enables a more stable connection of the transmission line.

[0022] As a preferred embodiment of this example, it should be further explained that one end of the end cap 5 is integrally connected to a limiting ring 503. The inner wall of the limiting ring 503 and the inner wall of the conical hole 501 are smoothly connected, that is, there is no step at the connection between the two. If one end of the pressure plate 3 first abuts against the limiting ring 503, when the end cap 5 is screwed into the connecting tube body 1, the conical hole 501 can be used to press the pressure plate 3 smoothly, so that the pressure plate 3 can slide in the rectangular wiring groove 201. It can also make one end of the pressure plate 3 slide further towards the other end of the conical hole 501. One end of the pressure plate 3 extends into the limiting ring 503, and one end of the pressure plate 3 has an arc-shaped head structure, so that the pressure plate 3 can slide more smoothly between the limiting ring 503 and the conical hole 501.

[0023] As a preferred embodiment of this invention, it should be further explained that the other end of the end cap 5 is provided with an operating ring 504 extending outward to the connecting tube body 1, which facilitates the rotation of the end cap 5 through the operating ring 504, thereby allowing one end of the end cap 5 to be threaded into the connecting tube body 1 for adjustment, making the adjustment of the end cap 5 easier.

[0024] As a preferred embodiment of this invention, it should be further explained that the operating ring 504 is provided with external threads, and a sealing sleeve 6 is installed at the end of the operating ring 504 away from the copper pillar 2. A threaded hole is provided at the end of the sealing sleeve 6 near the operating ring 504, and the threaded hole of the sealing sleeve 6 is threadedly connected to one end of the operating ring 504, ensuring a stable connection between the sealing sleeve 6 and the end cap 5. An annular mounting groove is provided between one end of the operating ring 504 and the sealing sleeve 6, and a sealing ring 7 is squeezed into the annular mounting groove to enhance the sealing between the transmission line and the sealing sleeve 6 and the end cap 5, thereby preventing rainwater from entering the interior of the connecting pipe body 1. It should be noted that, based on this, when it is necessary to adjust the depth of the end cap 5 within the connecting pipe body 1, the sealing sleeve 6 can be directly rotated, thereby causing the end cap 5 to rotate. The thread direction between the sealing sleeve 6 and the end cap 5, and the thread direction between the end cap 5 and the connecting pipe body 1, can be set according to the actual situation, and will not be further described in detail here.

[0025] As a preferred embodiment of this invention, it should be further noted that the sealing sleeve 6 has a polygonal shape. The polygonal structure makes the operation of the sealing sleeve 6 more convenient, such as making it easier to control by hand, and also making it easier to control with tools such as wrenches.

[0026] As a preferred embodiment of this invention, it should be further explained that the other end of the pressure plate 3 is slidably connected to the rectangular wiring groove 201 in the vertical direction to ensure the stability of the pressure plate 3 when moving, thereby avoiding the pressure plate 3 from shifting when moving, and thus failing to press the end of the transmission line.

[0027] As a preferred embodiment of this example, it should be further explained that a T-shaped limiting post 301 is connected to the top surface of the other end of the pressure plate 3, and a T-shaped sliding groove is provided on the inner top surface of the rectangular wiring groove 201. The upper part of the T-shaped limiting post 301 is slidably connected in the T-shaped sliding groove, thereby making the sliding of the pressure plate more stable. The spring 4 is sleeved on the outside of the T-shaped limiting post 301, and the two ends of the spring 4 abut against the other end of the pressure plate 3 and the inner top surface of the rectangular wiring groove 201, respectively, so that the spring 4 can stably provide spring force to the pressure plate.

[0028] As a preferred embodiment of this invention, it should be further explained that the upper part of the T-shaped groove penetrates the top surface of the copper column 2. The T-shaped groove is a cylindrical stepped groove. Similarly, the T-shaped limiting post 301 is a T-shaped cylinder, which allows the T-shaped limiting post 301 to slide and rotate within the T-shaped groove. The lower end of the T-shaped limiting post 301 is threadedly connected to the pressure plate 3, which can realize the detachable connection of the structure, thereby facilitating the adjustment of the components according to the actual situation.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A transmission line splicing device, characterized in that, The system includes a connector body (1), a copper column (2) fixed in the middle of the inner side of the connector body (1), and rectangular wiring grooves (201) opened at both ends of the copper column (2). A pressure plate (3) is installed in the rectangular wiring groove (201). The top surface of the pressure plate (3) is elastically connected to the inner top surface of the rectangular wiring groove (201) by a spring (4). One end of the pressure plate (3) extends outside the rectangular wiring groove (201) and is inclined to the inner top surface of the connector body (1). Both ends of the plate are threaded with end caps (5). The end cap (5) near the copper column (2) is provided with a conical hole (501) that can press the pressure plate (3) against the bottom surface of the rectangular wiring groove (201). The other end of the end cap (5) is provided with a line plug hole (502) that is coaxially connected with the conical hole (501) so that the power transmission line can pass through the line plug hole (502) and the conical hole (501) in sequence and then be placed between the pressure plate (3) and the bottom surface of the rectangular wiring groove (201).

2. The transmission line splicing device according to claim 1, characterized in that, One end of the end cap (5) is integrally connected to a limiting ring (503). The inner wall of the limiting ring (503) smoothly transitions with the inner wall of the conical hole (501). One end of the pressure plate (3) extends into the limiting ring (503), and one end of the pressure plate (3) has an arc-shaped head structure.

3. A transmission line splicing device according to claim 1 or 2, characterized in that, The other end of the end cap (5) is provided with an operating ring (504) extending outward to the body of the connecting tube (1).

4. A transmission line splicing device according to claim 3, characterized in that, The operating ring (504) is provided with an external thread. A sealing sleeve (6) is installed at the end of the operating ring (504) away from the copper column (2). A threaded hole is provided at the end of the sealing sleeve (6) near the operating ring (504), and the threaded hole of the sealing sleeve (6) is threadedly connected to one end of the operating ring (504). An annular mounting groove is provided between one end of the operating ring (504) and the sealing sleeve (6), and a sealing ring (7) is squeezed in the annular mounting groove.

5. A transmission line splicing device according to claim 4, characterized in that, The sealing sleeve (6) has a polygonal shape.

6. A transmission line splicing device according to claim 1, characterized in that, The other end of the pressure plate (3) is slidably connected in the rectangular wiring groove (201) in the vertical direction.

7. A transmission line splicing device according to claim 6, characterized in that, The top surface of the other end of the pressure plate (3) is connected to a T-shaped limiting post (301). The inner top surface of the rectangular wiring groove (201) is provided with a T-shaped sliding groove. The upper part of the T-shaped limiting post (301) is slidably connected in the T-shaped sliding groove. The spring (4) is sleeved on the outside of the T-shaped limiting post (301), and the two ends of the spring (4) abut against the other end of the pressure plate (3) and the inner top surface of the rectangular wiring groove (201) respectively.

8. A transmission line splicing device according to claim 7, characterized in that, The upper part of the T-shaped groove penetrates the top surface of the copper column (2), and the lower end of the T-shaped limiting column (301) is threadedly connected to the pressure plate (3).

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