A rail-based compression and shock-resistant cable

Abstract

The invention discloses a track-based pressure-resistant and impact-resistant cable, which relates to the technical field of cables, including a conductor, an insulating layer, a filling layer, an anti-stab layer, a wrapping layer, a decompression layer, a protective layer and a connecting plate, wherein a plurality of conductors are arranged in the filling layer, the conductor outer jacket is provided with an insulating layer, the filling layer outer jacket is provided with an anti-stab layer, the anti-stab layer outer jacket is provided with a wrapping layer, the wrapping layer outer jacket is provided with a decompression layer, the decompression layer outer jacket is provided with another wrapping layer, another wrapping layer outer jacket is provided with another anti-stab layer, another anti-stab layer outer jacket is provided with a protective layer, connecting plates are arranged at both ends of the cable, and a locking ring is arranged outside the connecting plate, and the locking ring is used to fix the connecting plate. The invention replaces the armor layer with a decompression layer, and when the decompression layer is subjected to pressure, the pressure is absorbed by the local deformation of the decompression layer, and if the decompression unit can be quickly disassembled and assembled, the uniformly manufactured decompression unit can be adapted to cables of most sizes by changing the number of decompression units according to the different sizes of the installed cables, thereby reducing costs.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to a rail-based compression and impact-resistant cable. Background Art

[0002] Cables are made of one or more mutually insulated conductors and an outer insulating protective layer, and are used to transmit electricity or information from one place to another. Traditional cables rely on the armor layer set inside the cable to resist pressure, but the traditional armor layer is usually made of steel belts, which are highly flexible and cannot resist pressure and impact well. In the face of the development trend of intelligent, rapid and efficient urban development, the efficiency and transmission requirements of rail cables are getting higher and higher, and a more efficient compression and impact resistant structure is needed to replace the traditional armor layer; at the same time, when the traditional armor layer is damaged, due to the problem of the materials in the structure, the repair effect is not good and it cannot be restored to its original state. When it is damaged next time, its ability to resist pressure and impact cannot be the same as the armor layer in the intact position. Summary of the invention

[0003] The object of the present invention is to provide a rail-based compression and impact-resistant cable to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a track-based pressure-resistant and impact-resistant cable, comprising a conductor, an insulating layer, a filling layer, a puncture-proof layer, a wrapping layer, a pressure-reducing layer, a protective layer and a connecting plate, wherein a plurality of conductors are arranged in the filling layer, the conductor jacket is provided with an insulating layer, the filling layer jacket is provided with an anti-puncture layer, the anti-puncture layer jacket is provided with a wrapping layer, the wrapping layer jacket is provided with a pressure-reducing layer, the pressure-reducing layer jacket is provided with another wrapping layer, another wrapping layer jacket is provided with another puncture-proof layer, another puncture-proof layer jacket is provided with a protective layer, connecting plates are arranged at both ends of the cable, and a locking ring is arranged outside the connecting plate, and the locking ring is used to fix the connecting plate.

[0005] Preferably, the decompression layer is composed of a plurality of decompression units connected in an up-and-down staggered manner, and one decompression unit includes a fitting component and two decompression components. The fitting component is square in shape, and the two decompression components are arranged at diagonal positions of the fitting component.

[0006] Preferably, the bonding assembly comprises bonding blocks and connecting rods, four bonding blocks are respectively placed at the four vertices of the same square, and every two adjacent bonding blocks are rotatably connected by a connecting rod.

[0007] Preferably, the decompression assembly includes a decompression block and a T-shaped slider, the lower ends of the fitting blocks at two diagonal positions are fixedly connected to a decompression block, two T-shaped slots are arranged in the decompression block, the T-shaped slider is slidably connected in the T-shaped slot, and the lower end of the T-shaped slider is hinged to the next decompression block after extending out of the decompression block, a spring is arranged between two adjacent decompression blocks, the spring sleeve is arranged outside the T-shaped slider, the decompression blocks and the T-shaped slider are connected in sequence, and the end of the connection is the decompression block, and elastic plates and elastic plate grooves are arranged on both sides of the last decompression block, and the elastic plate is fixedly connected to the outside of the elastic plate.

[0008] Preferably, a pressure relief block groove is provided at the lower end of the fitting block in the fitting assembly that is not fixedly connected to the pressure relief block, and clamping grooves are provided on both sides of the pressure relief block groove, and the clamping grooves can accommodate clamping teeth.

[0009] Preferably, the connecting plate comprises an inner connecting plate and an outer connecting plate, the inner connecting plate is also provided with a pressure reducing block groove at the position of the pressure reducing block, the pressure reducing block groove is also provided with card grooves on both sides, the card grooves can accommodate card teeth, and the inner connecting plate is provided with a thread at one end away from the cable.

[0010] Preferably, the outer connecting plate is threadedly connected to the inner connecting plate, a pressure reducing layer accommodating groove is provided at the position of the pressure reducing layer on the outer connecting plate, and the outer connecting plate is fixedly connected to the outer protective cover near one end of the cable.

[0011] Preferably, the locking ring includes a locking ring and a bolt. The locking ring is arranged on the outside of the outer protective cover. The upper end of the locking ring is open. The two ends of the opening of the locking ring are fixedly connected to one end of a fixing plate. The bolt is rotatably connected to the other end of the two fixing plates. A locking knob is threadedly connected near the tail end of the bolt, and the locking knob is in contact with a fixing plate.

[0012] Preferably, the stab-proof layer is composed of several layers of stab-proof cloth that are staggered and overlapped.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention replaces the armor layer with a decompression layer, and a plurality of decompression units are installed in the decompression layer. When subjected to pressure, the pressure can be effectively absorbed by local deformation of the decompression layer to avoid the pressure being transmitted to the position of the internal wires. At the same time, the plurality of decompression units can be quickly disassembled and assembled, which is convenient and quick to install. It is also relatively quick to repair and replace the decompression layer when it is damaged, and the replaced decompression layer can achieve a lossless effect, and its compression and impact resistance are the same as those of a new decompression layer. At the same time, the uniformly manufactured decompression units can be adapted to cables of most sizes according to the size of the cables to be installed by changing the number of decompression units on one ring, without having to manufacture decompression layers separately for cables of different sizes, thereby reducing cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 is a cross-sectional view of the connection plate position;

[0016] Figure 3 It is a schematic diagram of the overall structure of the cable body of the present invention;

[0017] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0018] Figure 5 It is a structural schematic diagram of a pressure reducing unit;

[0019] Figure 6 is a cross-sectional view of a decompression unit;

[0020] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0021] Figure 8 for Figure 6 A partial enlarged view of point C in the middle;

[0022] Fig. 9 It is a schematic diagram of the coordination state of the decompression unit;

[0023] Fig.10 It is a structural schematic diagram of the inner connecting plate;

[0024] Fig.11 It is a structural diagram of the confinement ring;

[0025] Fig.12 for Fig.11 A partial enlarged view of point D in the middle;

[0026] Fig.13 Schematic diagram of the structure of the anti-puncture layer.

[0027] In the figure: 1. wire, 2. insulation layer, 3. filling layer, 4. stab-proof layer, 401. stab-proof cloth, 5. wrapping layer, 6. pressure relief layer, 601. fitting block, 602. connecting rod, 603. pressure relief block, 604. T-shaped slide groove, 605. T-shaped slide block, 606. spring, 607. elastic plate, 608. elastic plate groove, 609. latching tooth, 610. pressure relief block groove, 611. latching groove, 7. protective layer, 8. connecting plate, 81. inner connecting plate, 82. outer connecting plate, 821. pressure relief layer accommodating groove, 822. outer protective cover, 9. locking ring, 901. locking ring, 902. fixing plate, 903. bolt, 904. locking knob. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-13 In order to solve the problem that the traditional armor layer cannot resist pressure and impact well, the decompression layer 6 replaces the armor layer to absorb pressure, the anti-puncture layer 4 and the wrapping layer 5 protect the decompression layer 6 and the wire 1, and the filling layer 3 further absorbs pressure. The present invention provides a technical solution: a track-based pressure-resistant and impact-resistant cable, comprising a wire 1, an insulating layer 2, a filling layer 3, an anti-puncture layer 4, a wrapping layer 5, a decompression layer 6, a protective layer 7 and a connecting plate 8, a plurality of wires 1 are arranged in the filling layer 3, the wire 1 is covered with an insulating layer 2, the filling layer 3 is covered with an anti-puncture layer 4, and the anti-puncture layer 4 is covered with a wrapping layer 5, The wrapping layer 5 is covered with a pressure relief layer 6, the pressure relief layer 6 is covered with another wrapping layer 5, the other wrapping layer 5 is covered with another puncture-proof layer 4, the other puncture-proof layer 4 is covered with a protective layer 7, connecting plates 8 are provided at both ends of the cable, and locking rings 9 are provided outside the connecting plates 8, and the locking rings 9 are used to fix the connecting plates 8; in the present application, the bolts 903 adopt the existing model, the insulating layer 2 is made of insulating materials including but not limited to rubber, the filling layer 3 is made of non-hygroscopic elastic materials including but not limited to rubber, and the protective layer 7 is made of materials capable of protecting cables including but not limited to polyvinyl chloride.

[0030] After the cable is manufactured, the connecting plate 8 is installed at both ends of the cable. The connecting plate 8 can fix the decompression layer 6 to prevent the decompression layer 6 from extending outside the cable and affecting the use of the cable. Then, the connecting plate 8 is fixed to the cable through the locking ring 9 to prevent the connecting plate 8 from being loosened due to impact during use. When the cable is subjected to pressure, the pressure reaches the protective layer 7. The protective layer 7 is used to prevent foreign objects from directly contacting the puncture-proof layer 4 during slight impact, thereby causing damage to the puncture-proof layer 4. Then, the pressure reaches the puncture-proof layer 4. The puncture-proof layer 4 is used to prevent foreign objects from damaging the inside of the cable. Foreign objects are blocked by the puncture-proof layer 4, but the pressure continues to be transmitted to the wrapping layer 5 and the decompression layer 6. The wrapping layer 5 is provided on both sides of the decompression layer 6. Since the decompression layer 6 is composed of several The decompression unit is composed of a decompression layer 6, so the shapes of the surfaces on both sides are not continuous and complete arc surfaces. At the same time, there are edges and corners on the decompression unit. The material of the wrapping layer 5 itself can be deformed. The wrapping layer 5 can form a continuous and complete coverage of the decompression layer 6. At the same time, it can also make other materials and the decompression layer 6 more stable and reduce vibration. The pressure is partially absorbed by the wrapping layer 5 and then transferred to the decompression layer 6. After the decompression layer 6 absorbs most of the pressure, the pressure is transferred to the filling layer 3. The remaining pressure is finally completely absorbed by the filling layer 3, thereby protecting the internal conductor 1. At the same time, the puncture-proof layer 4 close to the conductor 1 can also prevent foreign objects from continuing to damage the conductor 1 after damaging the external structure. An insulating layer 2 is also provided to prevent the electric current from causing damage to personnel and facilities.

[0031] In order to achieve the effect of local deformation of the decompression layer 6 to absorb pressure, and at the same time, it can be quickly installed, quickly repaired and replaced, and can adapt to most cables, a decompression layer 6 is provided. The decompression layer 6 is composed of a number of decompression units staggered up and down, and one decompression unit includes a bonding component and two decompression components. The shape of the bonding component is a square, and the two decompression components are arranged at the diagonal positions of the bonding component; the bonding component includes a bonding block 601 and a connecting rod 602, and the four bonding blocks 601 are respectively placed at the four vertices of the same square, and every two adjacent bonding blocks 601 are rotatably connected by a connecting rod 602; the decompression component includes a decompression block 603 and a T-shaped slider 605, and the lower ends of the bonding blocks 601 at the two diagonal positions are fixedly connected to a decompression block 603, and two T-shaped sliders are arranged in the decompression block 603. The slide groove 604 is slidably connected to the T-shaped slider 605, and the lower end of the T-shaped slider 605 extends out of the pressure relief block 603 and is hinged with the next pressure relief block 603. A spring 606 is arranged between two adjacent pressure relief blocks 603, and the spring 606 is sleeved outside the T-shaped slider 605. The pressure relief blocks 603 and the T-shaped slider 605 are connected in sequence, and the end of the connection is the pressure relief block 603. Elastic plates 607 and elastic plate grooves 608 are arranged on both sides of the last pressure relief block 603, and the elastic plate 607 is fixedly connected with the clamping teeth 609 outside; the lower end of the fitting block 601 that is not fixedly connected to the pressure relief block 603 in the fitting component is provided with a pressure relief block groove 610, and clamping grooves 611 are arranged on both sides of the pressure relief block groove 610, and the clamping grooves 611 can accommodate the clamping teeth 609; the elastic plate 607 is made of a material that can undergo elastic deformation.

[0032] When installing the pressure reducing unit, follow the Fig. 9603 is installed in the position shown, and the pressure relief block 603 at the lower end of the pressure relief assembly is inserted into the pressure relief block groove 610 of the bonding block 601. The pressure relief block 603 drives the elastic plate 607 to move, and the elastic plate 607 drives the latch tooth 609 to move. After the latch tooth 609 contacts the bonding block 601, it is blocked by the bonding block 601, and the latch tooth 609 starts to move. The latch tooth 609 drives the elastic plate 607 to move and deform, and the elastic plate 607 enters the elastic plate groove 608, and the pressure relief block 603 continues to move. The pressure relief block 603 drives the latch tooth 609 to the position of the latch groove 611, and the elastic plate 607 drives the latch tooth 609 to enter the latch groove 611, and the pressure relief block 603 is fixed to the bonding block 601; when the pressure relief layer 6 is subjected to pressure, the bonding assembly begins to deform, the position between the bonding assemblies on both sides changes, the outer and inner bonding blocks 601 are close to each other, and the bonding blocks 601 on the same bonding assembly are The fitting block 601 starts to rotate around the connecting rod 602, and the pressure relief block 603 fixedly connected thereto starts to move, the distance between the two adjacent pressure relief blocks 603 becomes smaller, the spring 606 is compressed, and the T-shaped slider 605 slides in the T-shaped slot 604. At the same time, the T-shaped slider 605 adaptively rotates around the hinge position of the pressure relief block 603 hinged thereto, and absorbs the pressure by converting the pressure into the elastic force of the spring 606; when the pressure on the pressure relief layer 6 disappears, the spring 606 pushes the distance between the adjacent pressure relief blocks 603 to become larger, and then the T-shaped slider 605 slides in the T-shaped slot 604 to return to its original position; when a pressure relief unit needs to be removed from the pressure relief layer 6, the elastic plates 607 on both sides of the pressure relief block 603 are pinched, and the elastic plates 607 drive the latch teeth 609 to enter the elastic plate groove 608, and the latch teeth 609 leave the position of the latch groove 611, and then the pressure relief block 603 is pulled out of the fitting block 601.

[0033] In order to solve the problem that the pressure reducing units at both ends of the cable cannot be fixed, a connecting plate 8 is provided, and the connecting plate 8 includes an inner connecting plate 81 and an outer connecting plate 82. The inner connecting plate 81 is also provided with a pressure reducing block groove 610 at the position of the pressure reducing block 603. The pressure reducing block groove 610 is also provided with card grooves 611 on both sides. The card groove 611 can accommodate the card teeth 609, and the inner connecting plate 81 is provided with a thread away from one end of the cable; the outer connecting plate 82 is threadedly connected to the inner connecting plate 81, and the outer connecting plate 82 is provided with a pressure reducing layer accommodating groove 821 at the position of the pressure reducing layer 6, and the outer connecting plate 82 is fixedly connected to the outer protective cover 822 near one end of the cable.

[0034] When it is necessary to fix the pressure relief layer 6, the inner connecting plate 81 is brought into contact with the cable end face, and then the pressure relief block 603 at the lower end of the pressure relief assembly is inserted into the pressure relief block groove 610 of the inner connecting plate 81, and then the outer connecting plate 82 is threadedly connected to the inner connecting plate 81 and tightened, and then the locking ring 9 is fixed; when it is necessary to remove the connecting plate 8, first loosen the locking ring 9, then unscrew the outer connecting plate 82, and then pull the pressure relief block 603 out of the inner connecting plate 81.

[0035] In order to achieve a better effect of fixing the external connecting plate 82, a locking ring 9 is provided. The locking ring 9 includes a locking ring 901 and a bolt 903. The locking ring 901 is sleeved on the outside of the outer protective sleeve 822. The upper end of the locking ring 901 is open. Both ends of the openings of the locking ring 901 are fixedly connected to one end of the fixing plate 902. The bolt 903 is rotatably connected to the other end of the two fixing plates 902. A locking knob 904 is threadedly connected near the tail end of the bolt 903, and the locking knob 904 is in contact with a fixing plate 902.

[0036] When it is necessary to fix the outer connecting plate 82, the locking knob 904 is turned, the locking knob 904 contacts with a fixing plate 902, and the locking knob 904 begins to approach the head of the bolt 903. The locking knob 904 pushes one of the fixing plates 902 closer to the other fixing plate 902, and the two fixing plates 902 drive the locking ring 901 to deform and squeeze the outer protective cover 822 to fit the circumference of the cable, and then the outer connecting plate 82 is fixed; when it is necessary to loosen the outer connecting plate 82, the locking knob 904 is turned, the locking knob 904 begins to move away from the head of the bolt 903, the locking ring 901 itself is deformed and expanded, the locking ring 901 drives the two fixing plates 902 to move away from each other, the outer protective cover 822 returns to its original state, and the outer connecting plate 82 is loosened.

[0037] In order to achieve the effect of protecting the decompression layer 6 and the conductor 1, a stab-proof layer 4 is provided, which is composed of several layers of stab-proof cloth 401 that are staggered and overlapped; the stab-proof cloth 401 is made of high-strength materials including but not limited to carbon fiber and steel wire that are staggered and overlapped; the wrapping layer 5 is made of a deformable pressure-resistant material including but not limited to Marisan.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rail-based compression and impact-resistant cable, comprising a conductor (1), an insulating layer (2), a filling layer (3), an anti-puncture layer (4), a wrapping layer (5), a pressure-reducing layer (6), a protective layer (7) and a connecting plate (8), characterized in that: A plurality of conductors (1) are arranged in the filling layer (3), the conductors (1) are provided with an insulating layer (2) on their outer jackets, the filling layer (3) is provided with a puncture-proof layer (4) on its outer jackets, the puncture-proof layer (4) is provided with a wrapping layer (5) on its outer jackets, the wrapping layer (5) is provided with a pressure-reducing layer (6) on its outer jackets, the pressure-reducing layer (6) is provided with another wrapping layer (5) on its outer jackets, the other wrapping layer (5) is provided with another puncture-proof layer (4) on its outer jackets, the other puncture-proof layer (4) is provided with a protective layer (7) on its outer jackets, connecting plates (8) are arranged at both ends of the cable, and a locking ring (9) is arranged outside the connecting plate (8), and the locking ring (9) is used to fix the connecting plate (8); The decompression layer (6) is composed of a plurality of decompression units connected in an alternating manner up and down, wherein one decompression unit comprises a laminating component and two decompression components, the laminating component is in a square shape, and the two decompression components are arranged at diagonal positions of the laminating component; The laminating assembly comprises laminating blocks (601) and connecting rods (602), wherein four laminating blocks (601) are respectively placed at the four vertices of the same square, and each two adjacent laminating blocks (601) are rotatably connected to a connecting rod (602); The decompression assembly comprises a decompression block (603) and a T-shaped slider (605). The lower ends of the two diagonally positioned fitting blocks (601) are fixedly connected to a decompression block (603). Two T-shaped slide grooves (604) are arranged in the decompression block (603). The T-shaped slide grooves (604) are slidably connected to the T-shaped slider (605). The lower end of the T-shaped slider (605) extends out of the decompression block (603) and is hinged to the next decompression block (603). A spring (606) is arranged between two adjacent decompression blocks (603). The spring (606) is sleeved outside the T-shaped slider (605). The decompression blocks (603) and the T-shaped slider (605) are connected in sequence. The end of the connection is the decompression block (603). The last decompression block (603) is provided with elastic plates (607) and elastic plate grooves (608) on both sides. The elastic plate (607) is fixedly connected to the latch teeth (609) outside.

2. A rail-based compression and impact resistant cable according to claim 1, characterized in that: A pressure relief block groove (610) is provided at the lower end of the fitting block (601) in the fitting assembly that is not fixedly connected to the pressure relief block (603). Clamping grooves (611) are provided on both sides of the pressure relief block groove (610). The clamping grooves (611) can accommodate the clamping teeth (609).

3. A rail-based compression and impact resistant cable according to claim 2, characterized in that: The connecting plate (8) comprises an inner connecting plate (81) and an outer connecting plate (82); the inner connecting plate (81) is also provided with a pressure reducing block groove (610) at the position of the pressure reducing block (603); both sides of the pressure reducing block groove (610) are also provided with clamping grooves (611); the clamping grooves (611) are capable of accommodating clamping teeth (609); and a thread is provided at one end of the inner connecting plate (81) away from the cable.

4. A rail-based compression and impact resistant cable according to claim 3, characterized in that: The outer connecting plate (82) is threadedly connected to the inner connecting plate (81); the outer connecting plate (82) is provided with a pressure reducing layer accommodating groove (821) at the position of the pressure reducing layer (6); and the outer connecting plate (82) is fixedly connected to the outer protective sleeve (822) near one end of the cable.

5. A rail-based compression and impact resistant cable according to claim 4, characterized in that: The locking ring (9) comprises a locking ring (901) and a bolt (903). The locking ring (901) is sleeved on the outside of the outer protective sleeve (822). The upper end of the locking ring (901) is open. Both ends of the opening of the locking ring (901) are fixedly connected to one end of a fixing plate (902). The bolt (903) is rotatably connected to the other ends of the two fixing plates (902). A locking knob (904) is threadedly connected near the rear end of the bolt (903). The locking knob (904) is in contact with a fixing plate (902).

6. A rail-based compression and impact resistant cable according to claim 1, characterized in that: The stab-proof layer (4) is composed of a plurality of layers of stab-proof fabrics (401) that are staggered and overlapped.

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