High-voltage cable protection device for power distribution engineering

Abstract

The utility model relates to the field of cable protection, in particular to a high-voltage cable protection device for power distribution engineering, which comprises a right sheath group, a left sheath group and a lock catch group, the right sheath group is butted with the left sheath group in a buckling manner, and the lock catch group is buckled with the right sheath group in an abutting manner. When the cable is used, the counter-acting force of the elastic deformation of the third bow-shaped elastic piece, the second bow-shaped elastic piece and the first bow-shaped elastic piece is used for resisting the bending force of the cable, so that the height bending of the cable sheath is reduced, the extension length of the bent cable sheath is lower than a preset value, the cable sheath is prevented from being broken in the long-time use process, and the service life of the cable is prolonged. The service life of the cable sheath is prolonged, the maintenance period is shortened, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of cable protection, in particular to a high-voltage cable protection device for power distribution engineering. Background Technique

[0002] The cable protection device is an important device for protecting the safe and stable operation of the cable line, including the protection of the cable sheath, mainly applied to medium and high-voltage cable lines in the power system to protect the metal sheath of the cable line from the damage of external overvoltage impact and arc breakdown.

[0003] In actual application, the main body of the high-voltage cable protection device is a connector and a combined joint, which are used for the connection and fixation of the cable line to ensure the continuity and stability of the cable line. During the process of the cable being led out from the equipment, it is extremely easy to have high-strength bending and folding, which makes the extension length of the cable sheath exceed the expected value, and it ages after long-term use, and then leads to the rupture of the protective layer. Therefore, those skilled in the art provide a high-voltage cable protection device for power distribution engineering to solve the problems raised in the above background technique. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a high-voltage cable protection device for power distribution engineering, including a right sheath group, a left sheath group and a lock group. The right sheath group and the left sheath group are in a snap-type docking, and the lock group is snap-fitted with the right sheath group;

[0005] The right sheath group includes a right semi-sheath ring, a first convex block, a first notch, a first card slot and a first bow-shaped elastic member. The upper end of the first bow-shaped elastic member is symmetrically and fixedly connected with the right semi-sheath ring. The front and rear ends of the right semi-sheath ring are fixedly installed with the first convex block, and a first notch is formed between the first convex block and the end of the right semi-sheath ring;

[0006] The left sheath group includes a left semi-sheath ring, a second notch, a second convex block, a second card slot and a second bow-shaped elastic member. The upper and lower ends of the second bow-shaped elastic member are symmetrically and fixedly connected with the left semi-sheath ring. The front and rear ends of the left semi-sheath ring are fixedly installed with the second convex block, and a second notch is formed between the second convex block and the end of the left semi-sheath ring. By buckling the second convex block with the first notch and cooperating with the first convex block and the second notch to buckle, the left semi-sheath ring and the right semi-sheath ring are snap-fitted, so as to protect the cable bending area. The reaction force of the elastic deformation of the second bow-shaped elastic member and the first bow-shaped elastic member is used to counteract the cable bending force, so as to reduce the high-degree bending of the cable sheath and make the extension length of the cable sheath after bending lower than the predetermined value.

[0007] Preferably: The second convex block is buckled with the first notch, and the first convex block is buckled with the second notch.

[0008] Preferably: The front and rear end faces of the right semi-sheath ring are symmetrically provided with the first card slots.

[0009] Preferably, clamping grooves II are symmetrically formed in the front and rear end faces of the left half sheathing ring.

[0010] Preferably, the locking mechanism group includes a clamp band, an arcuate elastic member III and a clamping block. The arcuate elastic member III can be deformed synchronously with the bending of the arcuate elastic member II and the arcuate elastic member I, further reducing the bending amplitude of the area to be bent of the cable sheathing. Clamp bands are symmetrically installed at the upper and lower ends of the arcuate elastic member III, and the clamp bands are arranged in the clamping grooves I and II.

[0011] Preferably, clamping blocks are symmetrically installed at the front and rear of the inner side of the clamp band, and the clamping blocks are correspondingly buckled with the notch I, thereby strengthening the buckling strength between the right sheathing group and the left sheathing group and reducing the falling-off situation.

[0012] Technical effects and advantages of the present utility model:

[0013] 1. When the present utility model is in use, by placing the cable and the cable sheathing between the left half sheathing ring and the right half sheathing ring, the convex block II is buckled with the notch I, and in cooperation with the buckling of the convex block I and the notch II, then the right sheathing group and the left sheathing group are pushed to the cable bending area, and finally the clamping blocks on the inner side of the clamp band are correspondingly buckled with the notch I, thereby strengthening the buckling strength between the right sheathing group and the left sheathing group and reducing the falling-off situation.

[0014] 2. When the present utility model is in use, the reaction force of the elastic deformation of the arcuate elastic member III, the arcuate elastic member II and the arcuate elastic member I is used to counteract the cable bending force, thereby reducing the high tortuosity of the cable sheathing, making the extended length of the cable sheathing after bending lower than the predetermined value, preventing the cable sheathing from cracking during long-term use, increasing the service life of the cable sheathing, reducing the maintenance period and increasing the practicability. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram provided by the present application;

[0016] Figure 2 is a schematic structural diagram of the right sheathing group provided by the present application;

[0017] Figure 3 is a schematic structural diagram of the left sheathing group provided by the present application;

[0018] Figure 4 is a schematic structural diagram of the locking mechanism group provided by the present application;

[0019] In the figure: 1. Right sheathing group; 2. Left sheathing group; 3. Locking mechanism group;

[0020] 11. Right half sheathing ring; 12. Convex block I; 13. Notch I; 14. Clamping groove I; 15. Arcuate elastic member I;

[0021] 21. Left half sheath ring; 22. Notch two; 23. Protrusion two; 24. Card slot two; 25. Bow-shaped elastic part two;

[0022] 31. Clamp; 32. Bow-shaped elastic part three; 33. Locking block. Specific implementation mode

[0023] The following further describes the present utility model in detail with reference to the accompanying drawings and specific implementation modes. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0024] Please refer to Figures 1 to 4 , in this embodiment, a high-voltage cable protection device for power distribution engineering is provided, including a right sheath group 1, a left sheath group 2, and a locking group 3. The right sheath group 1 and the left sheath group 2 are connected in a snap-fit manner, and the locking group 3 is snap-fitted with the right sheath group 1;

[0025] The right sheath group 1 includes a right half sheath ring 11, a protrusion one 12, a notch one 13, a card slot one 14, and a bow-shaped elastic part one 15. The upper end of the bow-shaped elastic part one 15 is symmetrically and fixedly connected to the right half sheath ring 11. The front and rear ends of the right half sheath ring 11 are fixedly installed with the protrusion one 12. A notch one 13 is formed between the protrusion one 12 and the end of the right half sheath ring 11. The front and rear end faces of the right half sheath ring 11 are symmetrically provided with the card slot one 14;

[0026] The left sheath group 2 includes a left half sheath ring 21, a notch two 22, a protrusion two 23, a card slot two 24, and a bow-shaped elastic part two 25. The upper and lower ends of the bow-shaped elastic part two 25 are symmetrically and fixedly connected to the left half sheath ring 21. The front and rear ends of the left half sheath ring 21 are fixedly installed with the protrusion two 23. A notch two 22 is formed between the protrusion two 23 and the end of the left half sheath ring 21. By engaging the protrusion two 23 with the notch one 13 and cooperating with the protrusion one 12 and the notch two 22, the left half sheath ring 21 and the right half sheath ring 11 are snap-fitted, thereby protecting the cable bending area. The reaction force of the elastic deformation of the bow-shaped elastic part two 25 and the bow-shaped elastic part one 15 is used to counteract the cable bending force, thereby reducing the high tortuosity of the cable sheath, making the extended length of the cable sheath after bending lower than the predetermined value. The front and rear end faces of the left half sheath ring 21 are symmetrically provided with the card slot two 24;

[0027] The buckle group 3 includes a clamp 31, a third arcuate elastic member 32 and a clamping block 33. The third arcuate elastic member 32 can deform synchronously with the bending of the second arcuate elastic member 25 and the first arcuate elastic member 15, further reducing the bending amplitude of the area to be bent of the cable sheath. The upper and lower ends of the third arcuate elastic member 32 are symmetrically installed with clamps 31. The clamps 31 are arranged in the first slot 14 and the second slot 24. The front and rear sides of the inner side of the clamp 31 are symmetrically installed with clamping blocks 33. The clamping blocks 33 are correspondingly buckled with the first notch 13, so as to strengthen the buckling strength between the right sheath group 1 and the left sheath group 2 and reduce the falling-off situation.

[0028] The working principle of the present utility model is:

[0029] When the present utility model is used, the cable and the cable sheath are placed between the left half-sheath ring 21 and the right half-sheath ring 11. The second convex block 23 is buckled with the first notch 13, and cooperates with the buckling of the first convex block 12 and the second notch 22. Then, the right sheath group 1 and the left sheath group 2 are pushed to the cable bending area. Finally, the clamping block 33 inside the clamp 31 is correspondingly buckled with the first notch 13, so as to strengthen the buckling strength between the right sheath group 1 and the left sheath group 2 and reduce the falling-off situation. The reaction force of the elastic deformation of the third arcuate elastic member 32, the second arcuate elastic member 25 and the first arcuate elastic member 15 resists the cable bending force, thereby reducing the high tortuosity of the cable sheath, making the extended length of the cable sheath after bending lower than the predetermined value, preventing the cable sheath from cracking during long-term use, increasing the service life of the cable sheath, reducing the maintenance period and increasing the practicability.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art and related fields without creative work shall fall within the protection scope of the present utility model. The structures, devices and operation methods not specifically described and explained in the present utility model shall be implemented according to the conventional means in the art without special description and limitation.

Claims

1. A high-voltage cable protection device for power distribution engineering, comprising a right sheath group (1), a left sheath group (2) and a lock group (3), characterized in that: The right sheath group (1) and the left sheath group (2) are butted together in a snap-fit ​​manner, and the lock group (3) and the right sheath group (1) are butted and snap-fitted together; The right sheath assembly (1) comprises a right half sheath ring (11), a protrusion (12), a recess (13), a slot (14) and a bow-shaped elastic member (15); the upper end of the bow-shaped elastic member (15) is symmetrically fixedly connected to the right half sheath ring (11); the front and rear ends of the right half sheath ring (11) are fixedly mounted with a protrusion (12); a recess (13) is formed between the protrusion (12) and the end of the right half sheath ring (11); The left sheath assembly (2) comprises a left half sheath ring (21), a second notch (22), a second protrusion (23), a second slot (24) and a second bow-shaped elastic member (25), wherein the upper and lower ends of the second bow-shaped elastic member (25) are symmetrically fixedly connected to the left half sheath ring (21), the front and rear ends of the left half sheath ring (21) are fixedly mounted with the second protrusion (23), and a second notch (22) is formed between the second protrusion (23) and the end of the left half sheath ring (21).

2. A high voltage cable protection device for power distribution engineering according to claim 1, characterized in that: The second protrusion (23) is buckled with the first notch (13), and the first protrusion (12) is buckled with the second notch (22).

3. A high voltage cable protection device for power distribution engineering according to claim 1, characterized in that: The front and rear end surfaces of the right half shield ring (11) are symmetrically provided with a clamping groove (14).

4. A high voltage cable protection device for power distribution engineering according to claim 1, characterized in that: The front and rear end surfaces of the left half protective sleeve ring (21) are symmetrically provided with a second clamping groove (24).

5. A high voltage cable protection device for power distribution engineering according to claim 4, characterized in that: The lock assembly (3) comprises a clamp (31), a third bow-shaped elastic member (32) and a clamping block (33); the third bow-shaped elastic member (32) can be deformed synchronously with the bending of the second bow-shaped elastic member (25) and the first bow-shaped elastic member (15); the clamps (31) are symmetrically mounted at the upper and lower ends of the third bow-shaped elastic member (32); the clamps (31) are arranged in the first clamping groove (14) and the second clamping groove (24).

6. A high voltage cable protection device for power distribution engineering according to claim 5, characterized in that: A clamping block (33) is symmetrically installed on the inner side of the clamp (31) at the front and rear sides, and the clamping block (33) is correspondingly buckled with the notch 1 (13).

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