Ship shore power supply cable connection auxiliary device

Abstract

The invention belongs to the technical field of ship electric power systems, and provides a ship shore power supply cable connection auxiliary device which comprises a supporting bottom plate, a bearing plate is arranged above the supporting bottom plate, a placing hole is formed in the bearing plate, bearing wheels distributed at intervals are arranged in the placing hole, a cable is movably placed on the bearing wheels, and the bearing wheels are arranged on the supporting bottom plate. A supporting shaft connected to the bearing plate in a penetrating mode is arranged in the middle of the bearing wheel. The cable conveying device further comprises a directional conveying assembly, and the directional conveying assembly drives the cable to move on the bearing wheels. Through the designed connection auxiliary device, the situation that a power cable is dragged and scratched on the ground can be avoided, and the connection stability is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of ship power systems, and in particular is a ship shore power cable connection auxiliary device. Background Art

[0002] The full name of ship shore power is "ship shore power system", which refers to the power supply system that uses land power to supply power to the main shipboard systems instead of using its own auxiliary generators when the ship is berthed;

[0003] The working principle of the shore power system is relatively simple. It is to send power from the shore power supply system (i.e. shore-based device) to the ship power receiving system (i.e. ship-borne device) through the ship-shore interaction part. Specifically, the high-voltage power supply on the shore is converted into low-voltage power by a transformer, and then connected to the docked ship through cables through low-voltage shore power boxes, shore power interface boxes, ship-shore connection equipment and other equipment for use;

[0004] Ship shore power systems can effectively reduce the emission of air pollutants, such as sulfur oxides, nitrogen oxides and particulate matter, while reducing noise pollution and improving the living and working environment of crew members.

[0005] After the ship docks, if the power supply system on the shore is far away from the hull, the shore personnel need to lead the cable from the shore power equipment and connect it with the cable on the ship to power the ship. The existing ship shore power cable connection process requires manual operation, which is not only time-consuming and labor-intensive, but also the staff will place the cable on the ground and drag it during the connection process. The cable may be mechanically damaged, such as scratches, extrusion, etc. These damages may cause cable performance degradation or failure, thereby affecting the connection of the power cable in the ship's shore power. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a ship shore power cable connection auxiliary device to solve the problem in the prior art that during the ship shore power connection process, the cable may be subjected to mechanical damage, such as scratches, extrusion, etc., and these damages may cause cable performance degradation or failure.

[0007] A ship shore power cable connection auxiliary device comprises a supporting bottom plate, a bearing plate is arranged above the supporting bottom plate, a placement hole is arranged in the bearing plate, and spaced bearing wheels are arranged in the placement hole, the cable is movably placed on the bearing wheel, and a supporting shaft penetrating and connected to the bearing plate is arranged in the middle of the bearing wheel;

[0008] It also includes a directional conveying component, which drives the cable to move on the load-bearing wheel.

[0009] Preferably, the vertical cross-sectional profile of the supporting plate is semicircular, a cable is arranged inside each supporting plate, the outer wall of the supporting wheel is provided with a circle of concave arc-shaped portion, the outer wall of the arc-shaped portion is provided with a thickened anti-slip layer, and the anti-slip layer is movably fitted with the outer wall of the cable.

[0010] Preferably, mounting support plates are symmetrically provided on the support shaft and on both sides of the bearing plate, mounting holes are symmetrically provided on the supporting base plate, the bottom of the mounting support plate extends through the mounting holes to the bottom of the supporting base plate, and threaded matching holes are provided on the mounting support plate that are spaced apart, and the threaded matching holes are located below the supporting base plate.

[0011] Preferably, a positioning plate is provided under the support chassis, and the positioning plate passes through the mounting support plate and fits with the bottom surface of the support base plate. A fastening screw is provided on the outside of the positioning plate, and the fastening screw is inserted into the threaded fitting hole from one side of the positioning plate and locked.

[0012] Preferably, sliding wheels are provided at the bottom of the support base plate near the four corners, the sliding wheels are locked with universal belts, and a pull rope is provided in front of the support base plate.

[0013] Preferably, the directional conveying assembly includes a conveying wheel, a conveyor belt, a linkage disk, a linkage rod and a rotating disk, the conveying wheel is fixedly connected to the support shaft and between the mounting support plate and the carrying plate, the conveying wheel is movably connected to the outer wall of the conveying wheel, the linkage disk is fixedly connected to one of the support shafts and on the side of the mounting support plate away from the conveying wheel, the rotating disk is connected to the same support shaft as the linkage disk and on the side of the linkage disk away from the mounting support plate, the linkage rod is fixedly connected to the side wall of the rotating disk, and the linkage rod is inserted into the linkage disk to drive the conveying wheel to rotate.

[0014] Preferably, a clamping hole is provided on the side of the linkage disk close to the rotating disk, the linkage rod cooperates with the clamping hole on the linkage disk, the linkage rod is distributed in a circle on the rotating disk, the rotating disk is movably connected to the support shaft, and when the rotating disk moves outward, the linkage rod is driven to move out of the clamping hole, a baffle is provided on the end of the support shaft close to the rotating disk, and a crank is provided on the outer wall of the rotating disk close to the baffle.

[0015] Preferably, rubber strips are spaced apart at both ends of the top of the arc-shaped portion on the carrier plate, and each of the rubber strips is provided with a fixedly connected pressing sheet, and the bottom surface of the pressing sheet is also arc-shaped and movably fits with the outer wall of the cable.

[0016] Preferably, the head of the cable has an interface, a support plate is provided at the end of the carrier plate and close to the interface, a card block is provided on the top of the support plate, the cable is movably arranged inside the card block, and the interface side wings are movably fitted with the side walls of the card block, the card block is a component made of plastic material, a downward inlet and outlet is provided on the top of the card block, and a protective layer for protecting the outer wall of the cable is provided inside the card block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a bearing plate above the supporting bottom plate, a placement hole is provided in the bearing plate, and bearing wheels are spaced apart in the placement hole. The bearing wheels support the cable, and the cable can be placed in the arc portion on the bearing wheels. Therefore, during the shore power connection process, the staff can place the cable on the bearing wheels to control the movement of the supporting bottom plate, thereby avoiding placing the cable on the ground for dragging, causing damage and affecting the connection with the ship cable, thereby protecting the cable and saving time and effort.

[0019] 2. The present invention designs a linkage rod on the turntable, and designs the linkage rod and the clamping hole to be movable. When the turntable moves backward on the supporting shaft, the linkage rod will be disengaged from the clamping hole. When the cable moves on the load-bearing wheel, the turntable will not rotate together. When the linkage rod is inserted into the clamping hole, the turntable will be driven to move together by shaking the hand, thereby driving the conveying wheel to rotate.

[0020] 3. The present invention sets a card block at the end of the carrier plate, and the cable can enter the card block or be taken out of the card block through the inlet and outlet at the top of the card block. When the cable enters the card block, the side wall of the interface on the cable abuts against the side wall of the card block, so that when the supporting base plate moves, the card block can clamp the interface, driving the interface on the cable to move with the carrier plate, thereby preventing the cable from detaching from the carrier plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the integrated power cable connection auxiliary device of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the load-bearing plate, load-bearing wheels and other components of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the directional conveying assembly of the present invention;

[0024] Figure 4 This is a schematic structural diagram of the linkage rod of the present invention being separated from the linkage disk;

[0025] Figure 5This is a schematic diagram of the split structure of the bottom positioning plate and the installation support plate of the support base plate of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the bearing plate and the pressing plate and other components of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of components such as the bearing plate and the clamping block of the present invention.

[0028] In the figure:

[0029] 1. Support base plate; 2. Load-bearing plate; 3. Placement hole; 4. Cable; 5. Load-bearing wheel; 6. Support shaft; 7. Arc-shaped part; 8. Anti-skid layer; 9. Install support plate; 10. Installation hole; 11. Threaded matching hole; 12. Positioning plate; 13. Fastening screw; 14. Sliding wheel; 15. Pull rope; 16. Conveyor wheel; 17. Conveyor belt; 18. Linkage disk; 19. Linkage rod; 20. Rotary disk; 21. Card hole; 22. Block; 23. Shake handle; 24. Rubber strip; 25. Pressing sheet; 26. Interface; 27. Support plate; 28. Block; 29. ​​Inlet and outlet; 30. Protective layer. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0031] As attached Figure 1 To Attachment Figure 7 As shown:

[0032] Embodiment 1: The present invention provides a ship shore power cable 4 connection auxiliary device, comprising a supporting bottom plate 1, a bearing plate 2 is arranged above the supporting bottom plate 1, a placement hole 3 is arranged in the bearing plate 2, and a spaced bearing wheel 5 is arranged in the placement hole 3, the cable 4 is movably placed on the bearing wheel 5, and a support shaft 6 penetrating and connected to the bearing plate 2 is arranged in the middle of the bearing wheel 5;

[0033] It also includes a directional conveying component, which drives the cable 4 to move on the bearing wheel 5.

[0034] It should be noted that, by providing a bearing plate 2 above the supporting base plate 1, a placement hole 3 is provided in the bearing plate 2, and there are spaced bearing wheels 5 in the placement hole 3, the bearing wheels 5 support the cable 4, so that the cable 4 can be placed in the arc portion 7 on the bearing wheel 5, so that during the shore power connection process, the staff can place the cable 4 on the bearing wheel 5 to control the movement of the supporting base plate 1, thereby avoiding placing the cable 4 on the ground for dragging, causing damage and affecting the connection with the ship cable 4, which not only protects the cable 4 but also saves time and effort.

[0035] In this embodiment, the vertical cross-sectional profile of the supporting plate 2 is semicircular, a cable 4 is arranged inside each supporting plate 2, a circle of concave arc-shaped portion 7 is arranged on the outer wall of the supporting wheel 5, and a thickened anti-slip layer 8 is arranged on the outer wall of the arc-shaped portion 7, and the anti-slip layer 8 is movably fitted with the outer wall of the cable 4.

[0036] It should be noted that, by providing a circle of concave arc-shaped portion 7 on the outer wall of the load-bearing wheel 5, it can better cooperate with the outer wall of the cable 4, so that when the supporting base plate 1 is moved, the cable 4 can better slide on the load-bearing wheel 5;

[0037] A thickened anti-skid layer 8 is designed on the inner wall of the arc-shaped portion 7. When the load-bearing wheel 5 rotates to transport the cable 4, the anti-skid layer 8 can effectively prevent the load-bearing wheel 5 from slipping, thereby improving the stability of the load-bearing wheel 5 in transporting the cable 4.

[0038] In this embodiment, mounting support plates 9 are symmetrically provided on the support shaft 6 and on both sides of the bearing plate 2, and mounting holes 10 are symmetrically provided on the supporting base plate 1. The bottom of the mounting support plate 9 extends through the mounting hole 10 to the bottom of the supporting base plate 1, and threaded matching holes 11 are provided on the mounting support plate 9 at intervals, and the threaded matching holes 11 are located below the supporting base plate 1.

[0039] It should be noted that by designing and installing support plates 9 on both sides of the load-bearing plate 2, the load-bearing plate 2 can be supported. At the same time, the installed support plates 9 are inserted under the supporting base plate 1 through the mounting holes 10, and a certain pre-fixation of the installed support plates 9 can be achieved, so that after the fastening screws 13 are loosened to a certain extent, the installed support plates 9 can still be connected to the supporting base plate 1.

[0040] In this embodiment, a positioning plate 12 is provided under the supporting chassis. The positioning plate 12 passes through the mounting support plate 9 and fits with the bottom surface of the supporting base plate 1. A fastening screw 13 is provided on the outside of the positioning plate 12. The fastening screw 13 is inserted from one side of the positioning plate 12 and locked in the threaded matching hole 11.

[0041] It should be noted that by designing a positioning plate 12 below the supporting chassis, the positioning plate 12 can be sleeved on the mounting support plate 9, and the positioning plate 12 and the mounting support plate 9 can be locked by fastening screws 13, so that the mounting support plate 9 is completely fixed on the supporting bottom plate 1, thereby ensuring the stability of the directional conveying assembly;

[0042] At the same time, the designed fastening screws 13 can realize quick disassembly and installation, so that after the cable 4 is connected, the installation support plate 9 can be removed from the support base plate 1, which is convenient for subsequent maintenance and is simple and convenient.

[0043] In this embodiment, sliding wheels 14 are provided at the bottom of the supporting base plate 1 near the four corners. The sliding wheels 14 are in the form of universal belt locking. A pull rope 15 is provided in front of the supporting base plate 1 .

[0044] It should be noted that by designing a sliding wheel 14 at the bottom of the supporting base plate 1, it is convenient to move the supporting base plate 1. When the cable 4 is placed on the load-bearing wheel 5, the sliding wheel 14 makes it more convenient to move the supporting base plate 1, which is more labor-saving. By designing a pull rope 15 on the supporting base plate 1, a person can drag the pull rope 15 to better control the moving direction of the supporting base plate 1.

[0045] In this embodiment, the directional conveying assembly includes a conveying wheel 16, a conveying belt 17, a linkage disk 18, a linkage rod 19 and a rotating disk 20. The conveying wheel 16 is fixedly connected to the support shaft 6 and between the mounting support plate 9 and the load-bearing plate 2. The conveying wheel 16 is movably connected to the outer wall of the conveying wheel 16. The linkage disk 18 is fixedly connected to one of the support shafts 6 and is on the side of the mounting support plate 9 away from the conveying wheel 16. The rotating disk 20 is connected to the same support shaft 6 as the linkage disk 18 and is on the side of the linkage disk 18 away from the mounting support plate 9. The linkage rod 19 is fixedly connected to the side wall of the rotating disk 20. The linkage rod 19 is inserted into the linkage disk 18 to drive the conveying wheel 16 to rotate.

[0046] It should be noted that the conveying wheel 16 is fixedly connected to the support shaft 6. When one of the conveying wheels 16 rotates, the conveyor belt 17 will drive the other conveying wheels to rotate together, and the support shaft 6 will drive the supporting plate 2 to move synchronously, so as to convey the cable 4. When multiple supporting plates 2 are arranged on the cable 4, it can effectively avoid the cable 4 from being dragged on the ground, and realize the automatic conveyance of the cable 4, and convey it to the specified position, which is convenient for it to be connected with the cable 4 on the ship, making the connection method more convenient.

[0047] In this embodiment, a locking hole 21 is provided on the side of the linkage disk 18 close to the rotating disk 20, and the linkage rod 19 cooperates with the locking hole 21 on the linkage disk 18. The linkage rod 19 is distributed in a circle on the rotating disk 20, and the rotating disk 20 is movably connected to the support shaft 6. When the rotating disk 20 moves outward, the linkage rod 19 is driven to move out of the locking hole 21. A baffle 22 is provided at the end of the support shaft 6 close to the rotating disk 20, and a crank 23 is provided on the outer wall of the rotating disk 20 close to the baffle 22.

[0048] It should be noted that, by designing the linkage rod 19 and the clamping hole 21 to be movable, when the turntable 20 moves backward on the support shaft 6, the linkage rod 19 will disengage from the clamping hole 21, and when the cable 4 moves on the load-bearing wheel 5, the turntable 20 will not rotate along with it. When the linkage rod 19 is inserted into the clamping hole 21, the turntable 20 will be driven to move together by shaking the handle 23, thereby driving the linkage disk 18 to move, thereby driving the conveying wheel 16 to rotate.

[0049] In this embodiment, rubber strips 24 are arranged at intervals at both ends of the top of the arc-shaped portion 7 on the supporting plate 2. A fixedly connected pressing piece 25 is arranged on each rubber strip 24. The bottom surface of the pressing piece 25 is also arc-shaped and fits movably with the outer wall of the cable 4.

[0050] It should be noted that by setting a rubber strip 24 on the top of the supporting plate 2, the rubber strip 24 has a certain elasticity, which can facilitate the cable 4 and the interface 26 to pass through the inside of the supporting plate 2. The pressure piece 25 designed on the rubber strip 24 can provide downward pressure on the cable 4 from above, thereby preventing the cable 4 from detaching from the supporting plate 2 during movement, thereby ensuring the stability of the cable 4 during movement.

[0051] In this embodiment, the head of the cable 4 has an interface 26, and a support plate 27 is provided at the end of the carrier plate 2 and close to the interface 26. A clamping block 28 is provided on the top of the support plate 27. The cable 4 is movably arranged inside the clamping block 28, and the side wings of the interface 26 are movably fitted with the side walls of the clamping block 28. The clamping block 28 is a component made of plastic material, and a downward inlet and outlet 29 is provided on the top of the clamping block 28. A protective layer 30 for protecting the outer wall of the cable 4 is provided inside the clamping block 28.

[0052] It should be noted that a card block 28 is set at the end of the supporting plate 2, and the cable 4 can enter the card block 28 or be taken out from the card block 28 through the inlet and outlet 29 on the top of the card block 28. When the supporting base plate 1 is moved, the card block 28 can clamp the interface 26, thereby driving the cable 4 to move and preventing the cable 4 from detaching from the supporting plate 2.

[0053] As can be seen from the above, when the ship needs to be connected to the shore power after docking, the shore power supply is connected to the power supply and placed in the supporting plate 2 on the supporting base plate 1. The number of supporting base plates 1 can be set to multiple, and can be flexibly adjusted according to the distance that the cable 4 needs to move. As long as the entire cable 4 is kept from touching the ground, the interface 26 of the cable 4 is inserted from the rear end of the supporting plate 2, and the rubber strip 24 is lifted upward to place the cable 4 on the anti-slip layer 8 on the supporting wheel 5. When the interface 26 of the cable 4 moves to the front end of the supporting plate 2, the cable 4 is passed through the inlet and outlet 29 on the block 28 to enter the interior of the block 28. The side wall of the interface 26 abuts against the side wall of the block 28, and the pressing piece 25 on the rubber strip 24 is attached to the cable 4 from above.

[0054] At this time, the staff can drive the supporting base plate 1 to move on the ground through the sliding wheel 14 by pulling the pull rope 15, thereby driving the cable 4 to move on the ground, which is more time-saving and labor-saving. When it moves to a suitable position, in the initial state, the linkage rod 19 is disengaged from the clamping hole 21 on the linkage disk 18, and the rotating disk 20 is movably connected to the support shaft 6, pushing the rotating disk 20 to move in the direction of the linkage disk 18, so that the linkage rod 19 is inserted into the clamping hole 21. At this time, the staff shakes the crank 23 and the rotation of the rotating disk 20 will drive the linkage disk 18 to rotate. The linkage disk 18 is fixedly connected to one of the support shafts 6, and the support shaft 6 is also fixedly connected with a conveying wheel 16, thereby driving the conveying wheel 16 to rotate. Under the connection of the conveyor belt 17, the other conveying wheels 16 are driven to operate together, driving the bearing wheel 5 to rotate, and the cable 4 is conveyed, so that the cable 4 can be directional displacement. After moving to a suitable position, it can better achieve docking with the cable 4 on the ship, thereby assisting the cable 4 to dock, saving time and effort.

[0055] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A ship shore power cable connection auxiliary device, characterized in that: include, A supporting base plate (1), a bearing plate (2) is arranged above the supporting base plate (1), a placement hole (3) is arranged in the bearing plate (2), and bearing wheels (5) are arranged in the placement hole (3) at intervals, the cable (4) is movably placed on the bearing wheel (5), and a supporting shaft (6) is arranged at the middle position of the bearing wheel (5) and is connected to the bearing plate (2); It also comprises a directional conveying component, which drives the cable (4) to move on the bearing wheel (5).

2. The ship shore power cable connection auxiliary device according to claim 1, characterized in that: The vertical cross-sectional profile of the bearing plate (2) is semicircular, and one of the cables (4) is arranged inside each of the bearing plates (2). The outer wall of the bearing wheel (5) is provided with a circle of inwardly concave arc-shaped portions (7), and the outer wall of the arc-shaped portions (7) is provided with a thickened anti-slip layer (8), and the anti-slip layer (8) is movably fitted with the outer wall of the cable (4).

3. The ship shore power cable connection auxiliary device according to claim 1, characterized in that: The support shaft (6) is symmetrically provided with mounting support plates (9) on both sides of the bearing plate (2); the support base plate (1) is symmetrically provided with mounting holes (10) distributed at intervals; the bottom of the mounting support plate (9) passes through the mounting holes (10) and extends to the bottom of the support base plate (1); the mounting support plate (9) is provided with threaded matching holes (11) distributed at intervals, and the threaded matching holes (11) are located below the support base plate (1).

4. The ship shore power cable connection auxiliary device according to claim 3, characterized in that: A positioning plate (12) is provided below the supporting chassis. The positioning plate (12) passes through the mounting supporting plate (9) and fits with the bottom surface of the supporting base plate (1). A fastening screw (13) is provided on the outside of the positioning plate (12). The fastening screw (13) is inserted from one side of the positioning plate (12) and locked in the threaded matching hole (11).

5. The ship shore power cable connection auxiliary device according to claim 1, characterized in that: Sliding wheels (14) are provided at the bottom of the supporting base plate (1) near the four corners. The sliding wheels (14) are in the form of universal belt locking. A pull rope (15) is provided in front of the supporting base plate (1).

6. The ship shore power cable connection auxiliary device according to claim 3, characterized in that: The directional conveying assembly comprises a conveying wheel (16), a conveying belt (17), a linkage disk (18), a linkage rod (19) and a rotating disk (20); the conveying wheel (16) is fixedly connected to the support shaft (6) and between the mounting support plate (9) and the carrying plate (2); the conveying wheel (16) is movably connected to the outer wall of the conveying wheel (16); the linkage disk (18) is fixedly connected to one of the support shafts (6) and is on the side of the mounting support plate (9) away from the conveying wheel (16); the rotating disk (20) is connected to the same support shaft (6) as the linkage disk (18) and is on the side of the linkage disk (18) away from the mounting support plate (9); the linkage rod (19) is fixedly connected to the side wall of the rotating disk (20); the linkage rod (19) is inserted into the linkage disk (18) to drive the conveying wheel (16) to rotate.

7. The ship shore power cable connection auxiliary device according to claim 6, characterized in that: A clamping hole (21) is provided on one side of the linkage disk (18) close to the rotating disk (20); the linkage rod (19) cooperates with the clamping hole (21) on the linkage disk (18); the linkage rod (19) is distributed in a circumference on the rotating disk (20); the rotating disk (20) is movably connected to the support shaft (6); when the rotating disk (20) moves outward, the linkage rod (19) is driven to move out of the clamping hole (21); a baffle (22) is provided on the end of the support shaft (6) close to the rotating disk (20); and a rocking handle (23) is provided on the outer wall of the rotating disk (20) close to the baffle (22).

8. The ship shore power cable connection auxiliary device according to claim 1, characterized in that: Rubber strips (24) are arranged at intervals at both ends of the top of the arc-shaped portion (7) on the carrier plate (2), and each of the rubber strips (24) is provided with a fixedly connected pressing sheet (25), and the bottom surface of the pressing sheet (25) is also curved to flexibly fit with the outer wall of the cable (4). Rubber strips (24) are arranged at intervals at both ends of the top of the arc-shaped portion (7) on the carrier plate (2), and each of the rubber strips (24) is provided with a fixedly connected pressing sheet (25), and the bottom surface of the pressing sheet (25) is also curved to flexibly fit with the outer wall of the cable (4).

9. The ship shore power cable connection auxiliary device according to claim 1, characterized in that: The head of the cable (4) has an interface (26), a support plate (27) is provided at an end portion of the carrier plate (2) and close to the interface (26), a clamping block (28) is provided on the top of the support plate (27), the cable (4) is movably arranged inside the clamping block (28), and the side wings of the interface (26) are movably fitted with the side walls of the clamping block (28), the clamping block (28) is a component made of plastic material, a downward inlet and outlet (29) is provided on the top of the clamping block (28), and a protective layer (30) for protecting the outer wall of the cable (4) is provided inside the clamping block (28).

Images