Cable branch box internal cable terminal head anti-tilting fixing structure

Abstract

This invention relates to the field of cable branch box technology and discloses a cable terminal head anti-sway fixing structure inside a cable branch box. The structure includes a base plate, which is fixedly connected to the inside of the cable branch box by bolts or other means. A base column is movably inserted into the front side of the base plate, and an adjusting cylinder is sleeved on the outside of the base column. A main limiting ring is connected to the outer end of the adjusting cylinder. A movable plate is provided on the outside of the base column, and an adjusting plate is sleeved on the outside of the movable plate. A secondary limiting ring is connected to the outer end of the adjusting plate. When the main and secondary limiting rings are connected and fixed, the adjusting cylinder and adjusting plate are in a fixed position. The entire structure is made of insulating material. This invention, by setting an openable limiting structure that sleeves on the outside of the cable terminal head, can limit the cable terminal head, thereby achieving the purpose of preventing sway, reducing cable insulation wear and breakage, extending service life, improving safety, and facilitating manual maintenance.

Description

Technical Field

[0001] This invention relates to the field of cable branch box technology, specifically to an anti-sway fixing structure for cable terminals inside a cable branch box. Background Technology

[0002] Cable branch boxes are outdoor electrical devices used in power distribution network systems to achieve cable branching or transfer. Their core functions include branching main cables into multiple small-section cables and safely transferring or transferring long-distance cables. They are widely used in urban power grids, high-speed railways and other scenarios.

[0003] Currently, cable terminations in cable distribution boxes are not effectively secured after installation. Under the influence of external forces such as wind and vibration, they may swing, bend, or shift from their correct installation position. This swaying can cause excessive friction and compression between the cable and the edge of the cable hole in the box, which may lead to wear of the cable insulation layer over time, and even breakage in severe cases. Furthermore, the tension generated by the swaying may cause the connection between the cable termination and the equipment to loosen, increasing the contact resistance and causing heat generation, which further accelerates insulation aging. Summary of the Invention

[0004] In view of the shortcomings of existing cable terminal joints mentioned in the background art during connection and use, the present invention provides a cable terminal head anti-sway fixing structure inside a cable branch box, which has the advantages of stable cable terminal joint connection and long service life, and solves the technical problems of accelerated wear and breakage of cable terminal joints mentioned in the background art.

[0005] This invention provides the following technical solution: a cable terminal head anti-sway fixing structure inside a cable branch box, including a base plate, which is fixedly connected to the inside of the cable branch box by bolts or other means. A base column is movably inserted into the front side of the base plate, and an adjusting cylinder is sleeved on the outside of the base column. A main limiting ring is connected to the outer end of the adjusting cylinder. A movable plate is provided on the outside of the base column, and an adjusting plate is sleeved on the outside of the movable plate. A secondary limiting ring is connected to the outer end of the adjusting plate. When the main limiting ring and the secondary limiting ring are connected and fixed, the adjusting cylinder and the adjusting plate are fixed in position. The entire structure is made of insulating material.

[0006] Furthermore, a sliding groove is provided on the front side of the base plate. The sliding groove is a vertical structure, and the bottom of the base column is movably inserted into the sliding groove and moves up and down along the sliding groove. A slot is provided at the outer end of the base column.

[0007] Furthermore, the bottom of the adjusting cylinder is movably sleeved on the outside of the base column, and the outer end of the adjusting cylinder is movably inserted into the slot at the outer end of the base column, so that the adjusting cylinder can only move along the axial direction of the base column. Several slots I are evenly distributed along the axial direction of the adjusting cylinder on the side of the adjusting cylinder near the movable plate.

[0008] Furthermore, the bottom of the movable plate is movably connected to the end of the base column near the bottom plate via a hinge shaft, and a slot is provided on the side of the movable plate near the base column. The slot is movably engaged with the outer end of the base column. A plug I is connected to the side of the outer end of the movable plate near the adjusting cylinder. The plug I is movably inserted into the slot I. At this time, the position of the adjusting cylinder is fixed, so that the adjusting cylinder can be adapted according to the actual position of the cable terminal head, improving the adaptability and practicality of the structure during use. A fixed plate is connected to the outer side of the movable plate near the bottom plate.

[0009] Furthermore, the bottom of the adjusting plate is movably sleeved on the outside of the movable plate, and the adjusting plate moves along the axial direction of the movable plate. Several evenly distributed slots II are provided on the outer side of the adjusting plate.

[0010] Furthermore, a hollow groove is provided in the middle of the card slot, and a card plate is movably connected inside the card slot by a spring. A plug II is connected to the side of the card plate near the adjustment plate. The plug II passes through the hollow groove on the card slot. When the card plate is connected to the spring in its natural state, the plug II does not contact the adjustment plate. When the card slot is engaged with the outside of the base column, the card plate is moved by force. At this time, the plug II is inserted into the slot II, thereby fixing the position of the adjustment plate relative to the movable plate, so that the adjustment plate can match the position of the cable terminal head with the adjustment cylinder.

[0011] Furthermore, a limiting component is provided on the outer side of the chute. The limiting component is connected to the front side of the base plate, and the length of the limiting component corresponds to the chute. Several insert plates are connected inside the limiting component. The insert plates are evenly distributed longitudinally and are connected to the inner side of the limiting component near the outer side. When the movable plate approaches the base column and closes, the fixed plate is engaged with the insert plate. At this time, the overall position of the base column is fixed. When the movable plate opens and leaves the base column, the fixed plate disengages from the insert plate. At this time, the base column can move up and down, so that the structure can be longitudinally adjusted according to the position of the cable terminal head, improving the practicality of the structure during use.

[0012] Furthermore, the main limiting ring has an arc-shaped structure, and several hollow grooves are opened on the inner side of the main limiting ring. Several rubber strips are also connected to the inner side of the main limiting ring. The outer end of the main limiting ring is connected to a limiting plate through a hinge shaft, and several grooves are provided at the bottom of the limiting plate.

[0013] Furthermore, the secondary limiting ring has an arc structure corresponding to the main limiting ring, and a limiting groove is opened at the outer end of the secondary limiting ring. The limiting plate is movably engaged in the limiting groove. The main limiting ring and the secondary limiting ring are fitted together on the outside of the cable terminal head, thereby limiting the cable terminal head, achieving the purpose of preventing swaying, and slowing down aging and other problems. At the same time, several grooves of the limiting plate can be engaged with the limiting groove, so that the main limiting ring and the secondary limiting ring can be adapted to different cable diameters.

[0014] The present invention has the following beneficial effects: 1. This invention, by setting an openable limiting structure that fits onto the outside of the cable terminal, can limit the cable terminal, thereby preventing swaying, reducing cable insulation wear and breakage, extending service life, improving safety, and facilitating manual maintenance.

[0015] 2. By setting the limiting structure as a retractable structure and configuring a matching limiting structure, the present invention can realize the front-to-back and up-to-down position conditions of the limiting structure, so that the cable terminal fixing structure can be adapted according to the actual situation, improving the adaptability and practicality of the structure during use, and also facilitating manual operation.

[0016] 3. By setting a split limiting structure and providing a margin at the connection of the limiting structure, the present invention can adapt to cables of different diameters, thereby improving the practicality of the structure. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a schematic diagram of the outer structure of the present invention; Figure 4 For the present invention Figure 3 A magnified structural diagram of point A in the middle.

[0018] In the diagram: 1. Base plate; 101. Slide groove; 2. Base column; 3. Adjusting cylinder; 31. Slot I; 4. Movable plate; 41. Insert block I; 42. Slot; 421. Card plate; 4211. Insert block II; 43. Fixing plate; 5. Adjusting plate; 51. Slot II; 6. Main limit ring; 61. Limiting plate; 7. Secondary limit ring; 71. Limiting groove; 8. Limiting component; 81. Insert plate. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1A cable terminal head anti-sway fixing structure inside a cable branch box includes a base plate 1, which is fixedly connected to the inside of the cable branch box by bolts or other means. A base column 2 is movably inserted into the front side of the base plate 1, and an adjusting cylinder 3 is sleeved on the outside of the base column 2. A sliding groove 101 is opened on the front side of the base plate 1. The sliding groove 101 is a vertical structure, and the bottom of the base column 2 is movably inserted into the sliding groove 101 and moves up and down along the sliding groove 101. A slot is opened at the outer end of the base column 2. The bottom of the adjusting cylinder 3 is movably sleeved on the outside of the base column 2, and the outer end of the adjusting cylinder 3 is movably inserted into the slot at the outer end of the base column 2, so that the adjusting cylinder 3 can only move along the axial direction of the base column 2. Several slots I31 are evenly distributed along the axial direction of the adjusting cylinder 3 on the side of the adjusting cylinder 3 near the movable plate 4.

[0021] Please see Figure 2 A movable plate 4 is provided on the outer side of the base column 2. The bottom of the movable plate 4 is movably connected to the end of the base column 2 near the bottom plate 1 via a hinge. A slot 42 is provided on the side of the movable plate 4 near the base column 2. The slot 42 is movably engaged with the outer end of the base column 2. An insert block I41 is connected to the side of the outer end of the movable plate 4 near the adjusting cylinder 3. The insert block I41 is movably inserted into the slot I31. At this time, the position of the adjusting cylinder 3 is fixed, so that the adjusting cylinder 3 can be adapted according to the actual position of the cable terminal head, improving the adaptability and practicality of the structure. A fixed plate 43 is connected to the outer side of the movable plate 4 near the bottom plate 1. An adjusting plate 5 is sleeved on the outside of the movable plate 4. A secondary limit ring 7 is connected to the outer end of the adjusting plate 5. When the main limit ring 6 and the secondary limit ring 7 are connected and fixed, the position of the adjusting cylinder 3 and the adjusting plate 5 is fixed. The entire structure is made of insulating material and will not affect the operation of the cable branch box.

[0022] Please see Figure 3-4 The bottom of the adjusting plate 5 is movably sleeved on the outside of the movable plate 4. The adjusting plate 5 moves along the axial direction of the movable plate 4. Several evenly distributed slots II51 are opened on the outer side of the adjusting plate 5. A hollow groove is provided in the middle of the slot 42. The slot 42 is movably connected to the plate 421 by a spring. The side of the plate 421 close to the adjusting plate 5 is connected to the plug II4211. The plug II4211 passes through the hollow groove on the slot 42. When the plate 421 is connected to the spring in its natural state, the plug II4211 does not contact the adjusting plate 5. When the slot 42 is engaged with the outside of the base column 2, the plate 421 is moved by force. At this time, the plug II4211 is inserted into the slot II51, so that the position of the adjusting plate 5 relative to the movable plate 4 is fixed, so that the adjusting plate 5 can match the position of the cable terminal head with the adjusting cylinder 3.

[0023] Please see Figure 1A limiting member 8 is provided on the outer side of the slide 101. The limiting member 8 is connected to the front side of the base plate 1, and the length of the limiting member 8 corresponds to the slide 101. Several insert plates 81 are connected inside the limiting member 8. The insert plates 81 are evenly distributed longitudinally and are connected to the inner side of the limiting member 8 near the outer side. When the movable plate 4 approaches the base column 2 and closes, the fixed plate 43 is engaged with the insert plate 81. At this time, the overall position of the base column 2 is fixed. When the movable plate 4 opens and leaves the base column 2, the fixed plate 43 disengages from the insert plate 81. At this time, the base column 2 can move up and down, so that the structure can be longitudinally adjusted according to the position of the cable terminal head, improving the practicality of the structure during use.

[0024] Please see Figure 3 The outer end of the adjusting cylinder 3 is connected to a main limiting ring 6. The main limiting ring 6 has an arc-shaped structure and several hollow grooves on its inner side for heat dissipation. Several strip-shaped soft rubber linings are also connected to the inner side of the main limiting ring 6 to improve the connection stability between the structure and the cable by utilizing the elasticity of the rubber, while reducing the damage to the cable. The outer end of the main limiting ring 6 is connected to a limiting plate 61 through a hinge. The bottom of the limiting plate 61 is provided with several grooves. The secondary limiting ring 7 has an arc-shaped structure corresponding to the main limiting ring 6, and the outer end of the secondary limiting ring 7 is provided with a limiting groove 71. The limiting plate 61 is movably engaged in the limiting groove 71. The main limiting ring 6 and the secondary limiting ring 7 are fitted onto the outside of the cable terminal head to limit the cable terminal head, thereby achieving the purpose of preventing swaying and slowing down aging. At the same time, several grooves of the limiting plate 61 can be engaged with the limiting groove 71, so that the main limiting ring 6 and the secondary limiting ring 7 can be adapted to different cable diameters.

[0025] The working principle of the method of using this invention is as follows: The base plate 1 is fixed inside the cable branch box using bolts or other means, positioned on one side of the cable termination connection. After connecting the cable, the cable is secured inside the main limiting ring 6. Simultaneously, the vertical position of the base column 2 and the axial position of the adjusting cylinder 3 are adjusted to position the cable appropriately. Then, the movable plate 4 is deflected, causing the fixed plate 43 to engage with the corresponding insertion plate 81. At this point, the base column 2 cannot move vertically. The movable plate 4 is then further deflected, while the position of the adjusting plate 5 is adjusted. When the slot 42 engages with the outer end of the base column 2, the locking plate 421 is pressed and moves. The insertion block II4211 is inserted into the corresponding slot II51, fixing the overall length of the adjusting plate 5 and the movable plate 4. At the same time, the insertion block I41 is inserted into the corresponding slot I31, fixing the position of the adjusting cylinder 3. The secondary limiting ring 7 is located outside the cable, deflecting the limiting plate 61 and locking the corresponding position of the limiting plate 61 outside the limiting groove 71, thus fixing the overall structure. At the same time, the soft rubber lining inside the main limiting ring 6 deforms. After being put into use, the external position of the cable terminal head is limited by this structure, preventing it from swaying due to external forces.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] 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. A cable terminal head anti-sway fixing structure inside a cable branch box, comprising a base plate (1), characterized in that: A base column (2) is movably inserted into the front side of the base plate (1). An adjusting cylinder (3) is sleeved on the outside of the base column (2). A main limiting ring (6) is connected to the outer end of the adjusting cylinder (3). A movable plate (4) is provided on the outside of the base column (2). An adjusting plate (5) is sleeved on the outside of the movable plate (4). A secondary limiting ring (7) is connected to the outer end of the adjusting plate (5). When the main limiting ring (6) and the secondary limiting ring (7) are connected and fixed, the adjusting cylinder (3) and the adjusting plate (5) are fixed in position.

2. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 1, characterized in that: The base plate (1) has a sliding groove (101) on its front side. The sliding groove (101) is a vertical structure, and the bottom of the base column (2) is movably inserted into the sliding groove (101) and moves up and down along the sliding groove (101). The outer end of the base column (2) has a slot.

3. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 2, characterized in that: The bottom of the adjusting cylinder (3) is movably sleeved on the outside of the base column (2), and the outer end of the adjusting cylinder (3) is movably inserted into the slot at the outer end of the base column (2). The adjusting cylinder (3) has several slots I (31) evenly distributed along the axial direction of the adjusting cylinder (3) on the side near the movable plate (4).

4. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 3, characterized in that: The bottom of the movable plate (4) is movably connected to the end of the base column (2) near the bottom plate (1) via a hinge shaft, and a slot (42) is provided on the side of the movable plate (4) near the base column (2). The slot (42) is movably engaged with the outer end of the base column (2). An insert block I (41) is connected to the side of the outer end of the movable plate (4) near the adjusting cylinder (3). The insert block I (41) is movably inserted into the slot I (31). A fixing plate (43) is connected to the outer side of the movable plate (4) near the bottom plate (1).

5. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 4, characterized in that: The bottom of the adjusting plate (5) is movably sleeved on the outside of the movable plate (4). The adjusting plate (5) moves along the axial direction of the movable plate (4). Several evenly distributed slots II (51) are provided on the outer side of the adjusting plate (5).

6. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 5, characterized in that: The slot (42) has a hollowed-out groove in the middle. The slot (42) is connected to a card plate (421) by a spring. The side of the card plate (421) near the adjustment plate (5) is connected to a plug II (4211). The plug II (4211) passes through the hollowed-out groove on the slot (42). When the card plate (421) is connected to the spring in its natural state, the plug II (4211) does not contact the adjustment plate (5). When the slot (42) is engaged with the outside of the base column (2), the card plate (421) is moved by force. At this time, the plug II (4211) is inserted into the slot II (51).

7. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 4, characterized in that: The outer side of the slide (101) is provided with a limiting member (8). The limiting member (8) is connected to the front side of the base plate (1), and the length of the limiting member (8) corresponds to the slide (101). Several insert plates (81) are connected inside the limiting member (8). The insert plates (81) are evenly distributed longitudinally, and the insert plates (81) are connected to the inner side of the limiting member (8) near the outer side. When the movable plate (4) approaches the base column (2) and closes, the fixed plate (43) is engaged with the insert plate (81). When the movable plate (4) opens and leaves the base column (2), the fixed plate (43) disengages from the insert plate (81).

8. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 1, characterized in that: The main limiting ring (6) has an arc-shaped structure, and several hollow grooves are opened on the inner side of the main limiting ring (6). Several rubber strips are connected to the inner side of the main limiting ring (6). The outer end of the main limiting ring (6) is connected to the limiting plate (61) through a hinge shaft. Several grooves are provided at the bottom of the limiting plate (61).

9. The anti-sway fixing structure for cable terminals inside a cable branch box according to claim 8, characterized in that: The secondary limiting ring (7) is an arc structure corresponding to the main limiting ring (6), and a limiting groove (71) is opened at the outer end of the secondary limiting ring (7), and the limiting plate (61) is movably engaged in the limiting groove (71).

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