CN116247604A

CN116247604A - Cable section protective structure

Info

Publication number: CN116247604A
Application number: CN202310140336.7A
Authority: CN
Inventors: 徐晨曦; 葛丙奎; 张兵; 侯慎雷
Original assignee: Yuncheng Power Supply Company State Grid Shandong Electric Power Co
Current assignee: Yuncheng Power Supply Company State Grid Shandong Electric Power Co
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-09

Abstract

The invention discloses a cable section protection structure, and mainly relates to the field of cable protection. Including the cover establish the helmet and the shield in the cable tip outside, be equipped with the through-hole on the shield, the cable tip stretches into the inside of helmet after passing the through-hole, the side rotation of orientation helmet is connected with the carousel on the shield, be equipped with seal cover and adapter sleeve on the carousel, seal cover and the lateral wall threaded connection of helmet, the inside rotation of helmet is connected with the rotation cover, adapter sleeve sliding connection is in the inside of rotating the cover, the inboard of helmet has a plurality of sliding frames along radial sliding connection, it is connected with the pinch roller to rotate on the sliding frame, the pinch roller contacts with the side of cable, be equipped with the elastic cover in the helmet, the tip of cable stretches into in the elastic cover. The invention has the beneficial effects that: the quick sealing operation on the exposed end part of the cable can be realized, the cable can be reused, the sealing protection and the dismounting efficiency are improved, and the protection is more convenient and environment-friendly.

Description

Cable section protective structure

Technical Field

The invention relates to the field of cable protection, in particular to a cable section protection structure.

Background

When the cable is used, the end part of the cable needs to be cut or connected for use, so that the end part of the cable needs to be temporarily sealed before transportation or connection after being exposed, the existing sealing mode generally uses an insulating adhesive tape on electric power for winding, the winding and the dismounting are inconvenient each time, and particularly for cables with larger sizes, the workload in the winding and the dismounting is larger, the operation time is longer, the use and construction efficiency of the cable is influenced, a large amount of adhesive tape is wasted, and the protection mode of the exposed end part of the cable needs to be further improved.

Disclosure of Invention

The invention aims to provide a cable section protection structure which can realize quick sealing operation on the exposed end part of a cable, can be reused, improves the sealing protection and disassembly efficiency, and ensures that the protection is more convenient and environment-friendly.

The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides a cable cross-section protective structure, establishes the helmet and the shield in the cable tip outside including the cover, be equipped with the through-hole on the shield, the cable tip stretches into the inside of helmet after passing the through-hole, the side rotation towards the helmet on the shield is connected with the carousel, be equipped with seal cover and adapter sleeve on the carousel, the seal cover is located the outside of helmet, the adapter sleeve is located the inboard of helmet, seal cover and the lateral wall threaded connection of helmet, the inside rotation of helmet is connected with the rotation cover, adapter sleeve sliding connection is in the inside of rotating the cover, the one end of rotating the cover is connected with the driving piece, the inboard of helmet is followed radial sliding connection and is had a plurality of slide racks, the driving piece is used for driving the slip of a plurality of slide racks, rotate on the slide rack and be connected with the pinch roller, the pinch roller contacts with the side of cable, be equipped with the elastic cover in the helmet, the tip of cable stretches into in the elastic cover.

Further, a plurality of sliding grooves are formed in the inner side wall of the rotating sleeve, a plurality of sliding blocks are arranged on the outer side wall of the connecting sleeve, and the sliding blocks are connected in the sliding grooves in a sliding mode.

Further, the driving piece comprises a conical fluted disc, bevel gears and a screw rod, wherein the conical fluted disc is fixed at one end of the rotating sleeve, the screw rod is radially distributed and rotationally connected to the inner side wall of the protective cap, the bevel gears are fixed on the screw rod, a plurality of bevel gears are meshed with the conical fluted disc at the same time, and the screw rod penetrates through the sliding frame and is in threaded connection with the sliding frame.

Further, a plurality of portal frames are distributed on the side wall of the protective cap in an array mode, the screw is rotationally connected to the top of the portal frames, two sides of the sliding frame are in sliding connection with two sides of the portal frames, and the surface, in contact with the cable, of the compression wheel is arc-shaped.

Further, a ratchet wheel is arranged on the rotating sleeve, a pawl matched with the ratchet wheel is connected to the side wall of the protective cap in a rotating mode, and a torsion spring is arranged between the pawl and the side wall of the protective cap.

Further, the side wall of the protective cap is provided with a through operation groove, the pawl is rotationally connected in the operation groove, and the operation groove is provided with a sealing cushion for sealing the operation groove.

Further, a plurality of hidden grooves are formed in the inner wall of the through hole, a pressing plate is rotationally connected to the hidden grooves, a pressing spring is arranged between the pressing plate and the side wall of the hidden groove, and the pressing plate is in contact with the side wall of the cable.

Further, the turntable is annular, the annular inner diameter of the turntable is larger than the size of the through hole, and the hidden hole is positioned in the annular inner diameter range of the turntable.

Further, the hidden hole is internally provided with a fixed plate, the fixed plate is rotationally connected with a rotating block, the compressing plate is rotationally connected with a locking rod, the locking rod penetrates through the rotating block and is in sliding connection with the rotating block, the end part of the locking rod is provided with a nut, and the nut and the compressing plate are respectively positioned on two sides of the fixed plate.

Further, the elastic cover is connected in the protective cap in an axial sliding way, and a jacking spring is arranged between the elastic cover and the inner wall of the protective cap.

Compared with the prior art, the invention has the beneficial effects that:

1. the structure of the invention comprises a protective cap and a protective cover, when the end part of a cable is protected and sealed, the cable penetrates through a through hole in the protective cover and then stretches into the interior of the protective cap, a turntable is rotationally connected to the protective cover, a sealing sleeve and a connecting sleeve are arranged on the turntable, the sealing sleeve is in threaded connection with the outer side wall of the protective cap, the connecting sleeve is in sliding connection with a rotating sleeve in the protective cap, the protective cover is only required to be buckled on the open side of the protective cap when being installed, then the turntable is rotated to enable the sealing sleeve to be in threaded connection with the outer side of the protective cap, in the process, the connecting sleeve moves in the rotating sleeve and drives the rotating sleeve to rotate, and through driving of a driving piece at the end part of the rotating sleeve, a plurality of sliding frames slide along the radial direction, the pressing wheels on the sliding frames are gradually pressed on the side surface of the cable, so that the cable is relatively fixed relative to the position of the protective cap, the structure is simple, the operation is convenient, the cable is also pressed and fixed by the plurality of pressing wheels after the protective cover is connected with the protective cap, and the protective cap is used for sealing the exposed end part of the cable, so that the protective cap of the cable is sealed, the cable is exposed, the operation of the cable is very easy to operate, and the sealing of the cable is realized, and the exposed section is only needs to be matched with the structure, and the sealing structure is greatly, and the protection structure is greatly improved, and the protection performance is required to be sealed, and can be and sealed, and the protection is better, and can be used, and can be repeatedly and sealed;

2. in the sealed protection process of cable tip, the cable moves to the inboard of helmet gradually, and the tip of cable is in the elastic cover in the helmet in this moment and compress the elastic cover gradually when removing to utilize elasticity to make the tip of cable inseparabler with the connection of elastic cover, further improved sealed protection's effect, simultaneously the cable is at the in-process of removing with hold-down pulley rolling contact until realizing stepwise compressing tightly, avoid causing the damage to the cable, improved sealed protection operation process's smoothness nature and security.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a front view of the present invention.

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2 in accordance with the present invention.

Fig. 4 is a cross-sectional view in the direction B-B of fig. 3 of the present invention.

FIG. 5 is a cross-sectional view taken along the direction C-C in FIG. 4 in accordance with the present invention.

Fig. 6 is a sectional view taken along the direction D-D in fig. 4 in accordance with the present invention.

The reference numbers shown in the drawings:

1. a cable; 2. a protective cap; 3. a protective cover; 4. a through hole; 5. a turntable; 6. sealing sleeve; 7. connecting sleeves; 8. a rotating sleeve; 9. a carriage; 10. a pinch roller; 11. an elastic cover; 12. a chute; 13. a slide block; 14. conical fluted disc; 15. bevel gears; 16. a screw; 17. a portal frame; 18. a ratchet wheel; 19. a pawl; 20. a torsion spring; 21. an operation groove; 22. sealing the soft cushion; 23. hiding the groove; 24. a compacting plate; 25. a compression spring; 26. a fixing plate; 27. a rotating block; 28. a locking lever; 29. a nut; 30. the spring is tightly propped.

Detailed Description

The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.

The invention relates to a cable section protection structure, which comprises a protection cap 2 and a protection cover 3 sleeved outside the end part of a cable 1, wherein one end of the protection cap 2 is opened, the other end of the protection cap 2 is closed, the protection cover 3 is used for closing the opened side of the protection cap 2, a through hole 4 is arranged on the protection cover 3, the through hole 4 penetrates through the protection cover 3, the end part of the cable 1 penetrates through the through hole 4 and then stretches into the protection cap 2, the exposed section of the cable 1 is sealed and protected by utilizing the inner space of the protection cap 2, a rotary disc 5 is rotatably connected on the side surface of the protection cap 3 facing the protection cap 2 through a bearing, the rotating joint is used for sealing and protecting the existing bearing, a sealing sleeve 6 and a connecting sleeve 7 are welded or fixed on the rotary disc 5, the sealing sleeve 6 is positioned outside the protection cap 2, the side of the turntable 5 and the side of the sealing sleeve 6 are both positioned at the outer side of the protective cap 2, the rotating operation is realized by rotating the turntable 5 or the sealing sleeve 6 during connection, the connecting sleeve 7 is positioned at the inner side of the protective cap 2, the sealing sleeve 6 is in threaded connection with the outer side wall of the protective cap 2, the sealing sleeve 6 can be driven to rotate during rotation of the turntable 5, the protective cap 3 is connected with the protective cap 2, the rotating sleeve 8 is rotationally connected on the inner side wall of the protective cap 2 through a bearing, the connecting sleeve 7 can be driven to synchronously rotate during rotation of the turntable 5, the connecting sleeve 7 is slidingly connected in the rotating sleeve 8, the connecting sleeve 7 is slidingly arranged in the rotating sleeve 8 during buckling of the protective cap 3 on the open side of the protective cap 2, and the connecting sleeve 7 and the sealing sleeve can only relatively slide to maintain a relatively fixed state in the rotating direction, such setting makes shield 3 drive through rotating threaded connection in-process adapter sleeve 7 on helmet 2 and rotates cover 8 synchronous rotation, the one end of rotating cover 8 is connected with the driving piece, the inboard of helmet 2 is along radial sliding connection there being a plurality of carriage 9, the driving piece is used for driving the slip of a plurality of carriage 9, utilizes rotating cover 8 to drive a plurality of carriage 9 simultaneously towards the cable under the effect of driving piece and slides, be connected with pinch roller 10 through the pivot rotation on the carriage 9, pinch roller 10 contacts with cable 1's side, and the side motion of the side of the drive roller 10 towards cable 1 of carriage 9 realizes progressively compressing tightly, and the whole installation connection step of such structure only needs rotating carousel 5 can realize the relative fixation of shield 3, cable 1 and helmet 2 in step that shield seal connects is simplified greatly, effectively avoids erosion to cable 1 exposure cross-section of external water or impurity etc. to realize effectively to cable 1 exposure cross-section, and operate very high efficiency, and can dismantle back used repeatedly, improved the cable 1 has improved the effect of protecting cover to be equipped with the elastic connection 2 in the side of cable 1 gradually, the effect that the elastic connection is equipped with the elastic connection cap 11 in the end portion is followed by the elastic connection of shield 1, and the elastic connection cap 11 is followed to the side of cable 1 is more closely, and the elastic connection is followed to the effect is improved in the side of protecting cover 1.

Preferably, be equipped with a plurality of spouts 12 on the inside wall of rotating sleeve 8, spout 12 is inwards sunken by the inside wall of rotating sleeve 8 and forms, welding or integrated into one piece are fixed with a plurality of sliders 13 on the lateral wall of adapter sleeve 7, slider 13 sliding connection is in spout 12, and such sliding mode can realize the relative slip of adapter sleeve 7 relative rotating sleeve 8 in the installation, and the connection of slider 13 and spout 12 is restrained adapter sleeve 7 again at the rotation unwrapping wire of rotating sleeve 8 for both have guaranteed pivoted uniformity and steadiness when keeping relative slip.

Preferably, the driving piece includes awl fluted disc 14, bevel gear 15, screw rod 16, awl fluted disc 14 welding or integrated into one piece's one end at rotating sleeve 8 is fixed, drives awl fluted disc 14 and rotates when rotating sleeve 8, screw rod 16 along radial distribution and through bearing rotation connection on the inside wall of helmet 2, bevel gear 15 welding or bolt fastening are on screw rod 16, a plurality of bevel gear 15 simultaneously with awl fluted disc 14 meshing, drive a plurality of bevel gears and screw rod 16 synchronous rotation through the meshing of awl fluted disc 14 with a plurality of bevel gears 15 when rotating sleeve 8 rotates, screw rod 16 runs through carriage 9 and its threaded connection, realizes the axial slip of a plurality of carriages 9 along screw rod 16 under threaded connection's effect, realizes the sliding motion drive of carriage 9 towards cable 1, and the drive structure is simpler and firm, and the effect of contact compaction of pinch rolls 10 on a plurality of carriages 9 and cable 1 side is more even and firm, has further improved the steadiness to cable 1 is fixed.

Preferably, a plurality of portal frames 17 are arranged on the side wall of the protective cap 2 in an array welding or bolt fixing mode, the screw rods 16 are connected to the top of the portal frames 17 in a rotating mode through bearings, two sides of the sliding frame 9 are connected with two sides of the portal frames 17 in a sliding mode, the portal frames 17 provide guiding for sliding of the sliding frame 9, stability of the structure of the sliding frame 9 is guaranteed, the surface, in contact with the cable 1, of the pressing wheel 10 is arc-shaped, the contact area between the pressing wheel 10 and the surface of the cable 1 is larger due to the arc-shaped structure, and accordingly the effect of fixing the cable 1 is improved.

Preferably, the ratchet 18 is fixed on the rotating sleeve 8 through welding or integrated into one piece, the pawl 19 that cooperates ratchet 18 to use is rotated through round pin axle or hinge on the lateral wall of helmet 2, be equipped with torsional spring 20 between pawl 19 and the helmet 2 lateral wall, such setting makes the rotating sleeve 8 support rotate towards carousel 5 pivoted direction, thereby make the shield 3 behind screw thread rotation connection to helmet 2, the shield 3 can not reverse rotation, this also makes the structure of the shield 3 behind the screw thread connection relative helmet 2 more firm, simultaneously the tight pulley 10 also keeps the state of compressing tightly with cable 1 tip, further improved whole protective structure's steadiness, be difficult for making the protective structure slippage in cable 1's laying process, sealed protection's steadiness is better.

Preferably, be equipped with the operation groove 21 that runs through on the lateral wall of helmet 2, pawl 19 rotates through round pin axle or hinge to be connected in operation groove 21, be equipped with on the operation groove 21 with its confined sealed cushion 22, such structure only need press the other end of pawl 19 through sealed cushion 22 when dismantling and make its tip and ratchet 18 separation, alright reverse rotation carousel 5 makes shield 3 unscrew from helmet 2 through threaded connection this moment, simultaneously a plurality of carriage 9 drive pinch roller 10 break away from cable 1's surface, realize the separation of whole structure and cable 1, dismantle more convenient and high-efficient, be convenient for in time lay the use to cable 1, the efficiency of dismouting is higher, the efficiency of cable 1 laying connection has been improved.

Preferably, a plurality of hidden grooves 23 are formed in the inner wall of the through hole 4, a pressing plate 24 is rotatably connected in the hidden grooves 23 through a pin shaft or a hinge, a pressing spring 25 is arranged between the pressing plate 24 and the side wall of the hidden groove 23, the pressing plate 24 is in contact with the side wall of the cable 1, the cable 1 is pressed by the plurality of pressing plates 24 in the process that the cable 1 passes through the through hole 4, the connection between the cable 1 and the protective cover 3 is preliminarily realized, the cable 1 is kept in a connection state with the protective cover 3 in the process that the protective cover 3 is mounted on the protective cover 2 in a threaded manner, the cable 1 is synchronously driven to move towards the inside of the protective cover 2, and accordingly the connection between the cable 1 and the elastic cover 11 can be gradually pressed and fixed without manually pushing the cable 1 towards the inside of the protective cover 2.

Preferably, carousel 5 is annular, carousel 5 annular internal diameter size is greater than the size of through-hole 4, avoids cable 1 to pass through the inside of through-hole 4 entering helmet 2 and produces the interference with carousel 5, hide groove 23 and be located carousel 5 annular internal diameter within range, such structure makes carousel 5 can not shelter from hiding groove 23 to can rotate the pressure strip 24 in hiding groove 23 from one side when dismantling and make it break away from cable 1, be convenient for take off protective cover 3 more convenient from cable 1, further improve protective cover 3 and efficiency and the convenience of cable 1 dismantlement.

Preferably, the fixing plate 26 is welded or bolted in the hidden groove 23, the fixing plate 26 is rotatably connected with the rotating block 27 through a pin shaft or a hinge, the pressing plate 24 is rotatably connected with the locking rod 28 through the pin shaft or the hinge, the locking rod 28 penetrates through the rotating block 27 and is slidably connected with the same, the end part of the locking rod 28 is provided with the nut 29, the nut 29 and the pressing plate 24 are respectively positioned at two sides of the fixing plate 26, and the nut 29 and the pressing plate 24 can be rotated outwards when the protective cover 3 is connected with the cable 1, so that the pressing plate 24 can automatically press and fix the cable 1 under the action of the pressing spring 25, and the nut 29 is rotated towards the direction of the fixing plate 26 when the pressing plate 24 is disassembled, so that the pressing plate 24 rotates towards the direction away from the cable 1 to release the connection between the protective cover 3 and the cable 1, and the disassembling operation of the protective cover 3 relative to the cable 1 is more efficient and convenient.

Preferably, the elastic cover 11 is slidably connected in the protective cap 2 along the axial direction, and a tightening spring 30 is disposed between the elastic cover 11 and the inner wall of the protective cap 2, so that the tightening spring 20 is gradually compressed after the cable 1 is connected with the elastic cover 11 in the installation process, so that the structure of the elastic cover 11 maintains the stability of sliding and the firmness of connection with the exposed section of the end portion of the cable 1 is improved.

Working principle: the structure of the invention comprises a protective cap 2 and a protective cover 3, when the end part of a cable is protected and sealed, the cable 1 is inserted into the protective cap 2 after passing through a through hole 4 on the protective cover 3, a turntable 5 is rotationally connected to the protective cover 3, a sealing sleeve 6 and a connecting sleeve 7 are arranged on the turntable 5, the sealing sleeve 6 is in threaded connection with the outer side wall of the protective cap 2, the connecting sleeve 7 is in sliding connection with a rotating sleeve 8 in the protective cap 2, the protective cover 3 is only required to be buckled on the open side of the protective cap 2 during installation, then the turntable 5 is rotated to enable the sealing sleeve 6 to be in threaded connection with the outer side of the protective cap 2, in the process, the connecting sleeve 7 slides in the rotating sleeve 8 and drives the rotating sleeve 8 to rotate, the driving of an end part driving piece of the rotating sleeve 8 is used to realize radial sliding of a plurality of sliding frames 9, and a pressing wheel 10 on the sliding frames 9 is gradually pressed on the side surface of the cable 1, so that the cable 1 is relatively fixed relative to the position of the protective cap 2, the structure is simple, the cable 1 is also pressed by a plurality of pressing wheels 10 after the sealing sleeve 3 is connected with the protective cap 2 through the sealing sleeve 6, the cable 1 is exposed to the protective cap 2, the operation is required to be more convenient, and the sealing structure is not required to be exposed to be more than the protective cap 2, and the sealing structure is required to be sealed, and the operation is more convenient to be in the sealing operation is realized, and the cross section is easy and has can be more than the sealing and has to be more convenient and easy and more than the sealing and has to be used and more than and easy to be used; in the sealed protection process of the end part of the cable 1, the cable 1 gradually moves towards the inner side of the protective cap 2, at this time, the end part of the cable 1 goes deep into the elastic cover 11 in the protective cap 2 and gradually compresses the elastic cover 11 when moving, so that the connection between the end part of the cable 1 and the elastic cover 11 is tighter by utilizing elasticity, the sealed protection effect is further improved, meanwhile, the cable is in rolling contact with the pressing wheel in the moving process until gradual pressing is realized, damage to the cable is avoided, and the smoothness and safety of the sealed protection operation process are improved.

Claims

1. The utility model provides a cable cross-section protective structure, establishes protective cap (2) and shield (3) its characterized in that in cable (1) tip outside including the cover: be equipped with through-hole (4) on shield (3), the inside that stretches into shield (2) after cable (1) tip passed through-hole (4), the side rotation of shield (3) is connected with carousel (5) towards shield (2), be equipped with seal cover (6) and adapter sleeve (7) on carousel (5), seal cover (6) are located the outside of shield (2), adapter sleeve (7) are located the inboard of shield (2), seal cover (6) and the lateral wall threaded connection of shield (2), the inside rotation of shield (2) is connected with rotation cover (8), adapter sleeve (7) sliding connection is in the inside of rotation cover (8), the one end of rotation cover (8) is connected with the driving piece, the inboard of shield (2) is followed radial sliding connection and is had a plurality of slide frame (9), the slide frame (9) are gone up to rotate and are connected with pinch roller (10), the inside of cable (1) and shield (2) are equipped with elasticity and stretch into side of shield (11).

2. A cable section protection structure according to claim 1, characterized in that: the inner side wall of the rotating sleeve (8) is provided with a plurality of sliding grooves (12), the outer side wall of the connecting sleeve (7) is provided with a plurality of sliding blocks (13), and the sliding blocks (13) are in sliding connection in the sliding grooves (12).

3. A cable section protection structure according to claim 1, characterized in that: the driving piece comprises a conical fluted disc (14), bevel gears (15) and a screw rod (16), wherein the conical fluted disc (14) is fixed at one end of the rotating sleeve (8), the screw rod (16) is distributed along the radial direction and is rotationally connected to the inner side wall of the protective cap (2), the bevel gears (15) are fixed on the screw rod (16), a plurality of the bevel gears (15) are meshed with the conical fluted disc (14) at the same time, and the screw rod (16) penetrates through the sliding frame (9) and is in threaded connection with the sliding frame.

4. A cable cross-section protection structure according to claim 3, wherein: the side wall of the protective cap (2) is provided with a plurality of portal frames (17) in an array mode, the screw rods (16) are rotationally connected to the top of the portal frames (17), two sides of the sliding frame (9) are in sliding connection with two sides of the portal frames (17), and the contact surface of the compression wheel (10) and the cable (1) is arc-shaped.

5. A cable section protection structure according to claim 1, characterized in that: the ratchet wheel (18) is arranged on the rotating sleeve (8), a pawl (19) matched with the ratchet wheel (18) for use is rotationally connected to the side wall of the protective cap (2), and a torsion spring (20) is arranged between the pawl (19) and the side wall of the protective cap (2).

6. The cable cross-section protection structure of claim 5, wherein: the side wall of the protective cap (2) is provided with a through operation groove (21), the pawl (19) is rotatably connected in the operation groove (21), and the operation groove (21) is provided with a sealing cushion (22) for sealing the operation groove.

7. A cable section protection structure according to claim 1, characterized in that: be equipped with a plurality of hidden grooves (23) on the inner wall of through-hole (4), hidden groove (23) internal rotation is connected with pinch plate (24), be equipped with between the lateral wall of pinch plate (24) and hidden groove (23) hold-down spring (25), pinch plate (24) are contacted with the lateral wall of cable (1).

8. The cable cross-section protection structure of claim 7, wherein: the rotary table (5) is annular, the annular inner diameter of the rotary table (5) is larger than the size of the through hole (4), and the hidden groove (23) is located in the annular inner diameter range of the rotary table (5).

9. The cable cross-section protection structure of claim 8, wherein: be equipped with fixed plate (26) in hidden groove (23), it is connected with rotor (27) to rotate on fixed plate (26), it is connected with latch lever (28) to rotate on clamp plate (24), latch lever (28) run through rotor (27) and rather than sliding connection, the tip of latch lever (28) is equipped with nut (29), nut (29) and clamp plate (24) are located the both sides of fixed plate (26) respectively.

10. A cable section protection structure according to claim 1, characterized in that: the elastic cover (11) is connected in the protective cap (2) in an axial sliding way, and a jacking spring (30) is arranged between the elastic cover (11) and the inner wall of the protective cap (2).