Armored safety cable

Abstract

The invention relates to the technical field of cables, and provides an armored safety cable which comprises a conductor, an insulating layer and an outer sheath, the insulating layer wraps the conductor, the armored safety cable further comprises a lining layer, a first armored layer, a second armored layer and a protection assembly, the insulating layer is located in the lining layer, filler is arranged between the insulating layer and the lining layer, and the outer sheath is arranged between the first armored layer and the second armored layer. The first armor layer wraps the outside of the lining layer and comprises a plurality of metal soft rods, the second armor layer is located outside the second armor layer, an isolating layer is arranged between the second armor layer and the first armor layer, the second armor layer is a steel belt, the outer sheath wraps the outside of the second armor layer, and the protection assembly is arranged outside the outer sheath and used for protecting the outer sheath. The protection assembly comprises installation bases and metal protection wires, and the metal protection wires are detachably connected between every two adjacent installation bases. According to the technical scheme, the problem that in the prior art, an armored cable outer sheath has the risk of being scratched and damaged in a complex environment is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to an armored safety cable. Background Art

[0002] Armored cable is a cable with a metal armor layer wrapped around the insulation layer. It is mainly used to enhance the mechanical protection, corrosion resistance and anti-interference ability of the cable. It includes conductor, insulation layer, inner sheath, armor layer and outer sheath. Anti-corrosion and mechanical protection are achieved through armor layers of different materials.

[0003] Current armored cables use armor layers to improve cable safety, but the armor layers are usually located inside the cable, and the outer sheath exposed to the outside is generally made of PVC. When dealing with underground and complex environments, the outer sheath of the cable is easily damaged due to long-term contact and friction with hard or sharp foreign objects, resulting in the risk of leakage. Summary of the invention

[0004] The present invention provides an armored safety cable, which solves the problem in the prior art that the outer sheath of the armored cable has the risk of being scratched and damaged in a complex environment.

[0005] The technical solution of the present invention is as follows: an armored safety cable, comprising a conductor, an insulating layer and an outer sheath, wherein the insulating layer is wrapped around the outside of the conductor, and further comprising: An inner lining layer, wherein the insulating layer is located inside the inner lining layer, and a filler is arranged between the insulating layer and the inner lining layer; An armor layer 1, wherein the armor layer 1 is wrapped around the outside of the inner lining layer, and the armor layer 1 includes a plurality of metal soft rods; Armor layer 2, the armor layer 2 is located outside the armor layer 2, an isolation layer is provided between the armor layer 2 and the armor layer 1, the armor layer 2 is a steel belt, and the outer sheath is wrapped around the outside of the armor layer 2; A protection component, which is arranged outside the outer sheath and is used to protect the outer sheath, and the protection component includes: A mounting seat, wherein a plurality of mounting seats are provided and the mounting seats are arranged outside the outer sheath; A metal protective wire is detachably connected between two adjacent mounting seats.

[0006] In order to install the mounting seat on the outside of the outer sheath, the mounting seat is a splicing structure, and the mounting seat includes: A splicing ring, wherein a plurality of the splicing rings are provided, and the plurality of splicing rings are connected end to end to form a whole ring wrapped around the outside of the outer sheath; An elastic connecting piece is fixedly connected to one end of the splicing ring, and the other end of the splicing ring is provided with a connecting groove matching the elastic connecting piece.

[0007] In order to achieve the position limitation of the splicing ring by the elastic connecting piece, the elastic connecting piece is bent into a rhombus shape.

[0008] In order to realize the connection between the metal protection wire and the mounting seat, a plurality of hanging rings are fixedly connected to both ends of the splicing ring, and hooks matching the hanging rings are rotatably connected to both ends of the metal protection wire.

[0009] In order to ensure the stability of the mounting seat, an anti-skid pad is fixedly connected to the inner side of the splicing ring, and the anti-skid pad is in contact with the outer side of the outer sheath.

[0010] In order to further improve the stability of the splicing ring connection, a limiting member is also included, and the limiting member is used to limit the splicing ring. The limiting member includes: An insertion rod, wherein the splicing ring is provided with a slot matching the insertion rod, the slot is connected to the connecting groove, and the insertion rod can pass through the elastic connecting piece; A baffle is fixedly connected to the plug rod, and the baffle is in contact with the splicing ring.

[0011] In order to ensure the stability of the insertion rod, a clamping piece is provided on the insertion rod, and the clamping piece includes: A slide rod, wherein a slide groove is provided on the insertion rod, the slide rod is slidably installed inside the slide groove, and a tension spring is connected between the slide rod and the inner wall of the slide groove; A clamping rod, a clamping groove is provided on one side of the sliding rod away from the inserting rod, the clamping rod is slidably installed inside the clamping groove, and the clamping rod is in contact with the splicing ring.

[0012] The working principle and beneficial effects of the present invention are: 1. In the present invention, the cable is double-protected by the armor layer 1 of the metal soft rod and the armor layer 2 of the steel belt, which greatly improves the mechanical strength and corrosion resistance of the cable and makes the cable safer.

[0013] 2. In the present invention, multiple splicing rings are spliced ​​into a whole ring through the cooperation of elastic connecting pieces and connecting grooves and are mounted on the outside of the outer sheath. The metal protective wire can be installed between two adjacent mounting seats through the cooperation of hooks and hanging rings. The outer sheath is protected by the metal protective wire to reduce scratches and other damages to the cable outer sheath caused by external sharp objects or other hard objects.

[0014] 3. In the present invention, the two sides of the metal protective wire are hung on different hooks, which can change the layout of the metal protective wire, making it straight or inclined or even cross-arranged along the cable direction to form different protective effects. At the same time, the mounting seat is a splicing structure, and the distance between the two mounting seats can be adjusted to adapt to different installation methods of the metal protective wire.

[0015] 4. In the present invention, the elastic connecting piece can be limited by the insertion rod to prevent the splicing ring from being disengaged. At the same time, the clamping rod is clamped inside the clamping slot under the action of the tension spring to prevent the insertion rod from being disengaged from the inside of the slot, thereby ensuring the stability of the mounting seat and the metal protective wire.

[0016] 5. Therefore, compared with the armored cables in the prior art, the present invention uses two different armor layers to provide double protection for the cables, thereby improving the safety of the cables. At the same time, a mounting seat and a metal protective wire are arranged on the outside of the cable to protect the outside of the outer sheath and reduce the damage to the outer sheath of the cable caused by foreign objects. At the same time, through the coordination of hooks and hanging rings and the splicing of multiple splicing rings, the metal protective wire is arranged on the outside of the cable in a variety of ways to better protect the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the conductor, insulating layer, outer sheath and inner lining layer of the present invention; Figure 3 It is a schematic diagram of the structure of the protection component, the limiting member and the clamping member of the present invention; Figure 4 It is a schematic diagram of the structure of the mounting seat, the limiting member and the clamping member of the present invention; Figure 5 It is a schematic diagram of the structure of the splicing ring, the elastic connecting piece and the limiting member of the present invention; Figure 6 It is a schematic diagram of the structure of the splicing ring, the elastic connecting piece, the limiting member and the clamping member of the present invention; Figure 7 It is a schematic diagram of the structure of the limiting member and the clamping member of the present invention; Figure 8 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] In the figure: 1. Conductor; 2. Insulation layer; 3. Outer sheath; 4. Inner lining layer; 5. Armor layer 1; 6. Armor layer 2; 7. Filler; 8. Isolation layer; 9. Hanging ring; 10. Hook; 11. Anti-slip pad; 101. Metal protective wire; 201, splicing ring; 202, elastic connecting piece; 301, plug rod; 302, baffle; 401, slide bar; 402, clamping bar; 403, slide slot; 404, tension spring. DETAILED DESCRIPTION

[0020] The following will be combined with 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.

[0021] like Figures 1 to 8 As shown, this embodiment proposes an armored safety cable, including a conductor 1, an insulating layer 2 and an outer sheath 3, wherein the insulating layer 2 is wrapped around the outside of the conductor 1, and also includes an inner lining layer 4, an armor layer 1 5, an armor layer 2 6 and a protective component. Compared with the armored cable in the prior art, the present invention uses two different armor layers to provide double protection for the cable, thereby improving the safety of the cable. At the same time, a mounting seat and a metal protective wire 101 are arranged on the outside of the cable to protect the outside of the outer sheath 3 and reduce damage to the outer sheath 3 of the cable caused by foreign objects. At the same time, through the cooperation of the hook 10 and the hanging ring 9 and the splicing of multiple splicing rings 201, the metal protective wire 101 is arranged on the outside of the cable in a variety of ways to better protect the cable.

[0022] The insulating layer 2 is located inside the inner lining layer 4, a filler 7 is arranged between the insulating layer 2 and the inner lining layer 4, an armor layer 5 is wrapped around the outside of the inner lining layer 4, the armor layer 5 includes a plurality of metal soft rods, the armor layer 2 6 is located outside the armor layer 2 6, an isolation layer 8 is arranged between the armor layer 2 6 and the armor layer 1 5, the armor layer 2 6 is a steel belt, the outer sheath 3 is wrapped around the outside of the armor layer 2 6, a plurality of conductors 1 and insulating layers 2 are arranged, the conductors 1 and the insulating layers 2 correspond to each other one by one, the conductor 1 includes a plurality of metal wires, the insulating layer 2 A plurality of metal wires are wrapped, and a filler 7 is arranged between the plurality of insulating layers 2 and the inner lining layer 4 to ensure the roundness of the cable and further insulate the conductor 1. The cable is protected by an armor layer 5, namely, a plurality of metal flexible rods and a steel belt armor layer 6 to increase the mechanical strength and corrosion resistance of the cable. At the same time, the metal flexible rods and the steel belts can be bent to ensure the softness of the cable so that the cable can be bent more freely. The outer sheath 3 is wrapped around the outside of the armor layer 6 to wrap and protect the cable.

[0023] The protective component is arranged on the outside of the outer sheath 3 and is used to protect the outer sheath 3. The protective component includes a mounting seat and a metal protective wire 101. There are multiple mounting seats, and the mounting seat is arranged on the outside of the outer sheath 3. The metal protective wire 101 is detachably connected between two adjacent mounting seats. The metal protective wire 101 is installed on the outside of the outer sheath 3 through the mounting seat. The outer sheath 3 is protected by the mounting seat and the metal protective wire 101, reducing the contact between the outer sheath 3 and external hard or sharp objects, thereby reducing damage to the outer sheath 3.

[0024] In order to install the mounting seat on the outside of the outer sheath 3, the mounting seat is a splicing structure, and the mounting seat includes a splicing ring 201 and an elastic connecting piece 202. The splicing ring 201 is provided with multiple splicing rings 201, and the multiple splicing rings 201 are connected end to end to form a whole ring wrapped around the outside of the outer sheath 3. The elastic connecting piece 202 is fixedly connected to one end of the splicing ring 201, and the other end of the splicing ring 201 is provided with a connecting groove matching the elastic connecting piece 202. The elastic connecting piece 202 is bent into a rhombus shape, and the elastic connecting piece 202 is inserted into the interior of the connecting groove. Since the edge of the elastic connecting piece 202 is rhombus-shaped and the connecting groove is also rhombus-shaped, when the tip of the elastic connecting piece 202 is inserted into the connecting groove, as the elastic connecting piece 202 enters, the entrance of the connecting groove squeezes the elastic connecting piece 202, and the elastic connecting piece 202 produces elastic deformation, and the upper and lower ends of the rhombus move toward the middle. As the elastic connecting piece 202 enters the connecting groove, the other tip of the rhombus, which is the side connected to the splicing ring 201, loses the restriction of the entrance of the connecting groove, and gradually recovers the rhombus state under the action of its own elasticity and clings to the inner wall of the connecting groove. At the same time, the elastic connecting piece 202 is limited by the entrance of the connecting groove to prevent it from escaping from the inside of the connecting groove, thereby ensuring the connection stability of multiple splicing rings 201. Multiple splicing rings 201 are spliced ​​into a whole ring that matches the diameter of the cable outer sheath 3 and are installed on the outside of the cable outer sheath 3. At the same time, in order to ensure the stability of the mounting seat, the inner side of the splicing ring 201 is fixedly connected with an anti-skid pad 11, which contacts the outer side of the outer sheath 3. The anti-skid pad 11 can be made of rubber or resin material and has a certain elasticity, so that the splicing ring 201 is pressed against the outside of the outer sheath 3 to ensure the stability of the mounting seat.

[0025] In order to realize the connection between the metal protection wire 101 and the mounting seat, multiple hanging rings 9 are fixedly connected at both ends of the splicing ring 201, and hooks 10 matching the hanging rings 9 are rotatably connected at both ends of the metal protection wire 101. The hooks 10 can be elastic hooks 10, which are hung on the hanging rings 9 to prevent them from falling off, so that the metal protection wire 101 is installed between two adjacent mounting seats. The metal protection wire 101 is spring-shaped and has a certain elasticity. The distance between the two mounting seats is adjusted so that the metal protection wire 101 has a certain tension, reducing the metal protection wire 1 01's shaking and deformation can better protect the outside of the cable. The hooks 10 at both ends of the metal protective wire 101 can be hung on two hanging rings 9 that do not correspond to each other, so that the metal protective wire 101 is tilted or cross-arranged on the outside of the outer sheath 3, so as to protect the outside of the cable in a more diversified way. At the same time, the position of the mounting seat can be moved to adapt to various layout changes of the metal protective wire 101. At the same time, when a single metal protective wire 101 is damaged, it can be removed by the hook 10 and the metal protective wire 101 can be replaced, and the replacement cost is relatively low.

[0026] In order to further improve the stability of the connection of the splicing ring 201, a limit piece is also included, which is used to limit the splicing ring 201. The limit piece includes an insertion rod 301 and a baffle 302. A slot matching the insertion rod 301 is opened on the splicing ring 201, and the slot is connected to the connecting groove. The insertion rod 301 can pass through the elastic connecting piece 202, and the baffle 302 is fixedly connected to the insertion rod 301. The baffle 302 is in contact with the splicing ring 201. After the elastic connecting piece 202 is inserted into the connecting groove to splice the splicing ring 201, the insertion rod 301 is inserted into the interior of the slot and passes through the connecting groove. The diamond piece formed by the insertion rod 301 passing through the elastic connecting piece 202 can further prevent the elastic connecting piece 202 from escaping from the inside of the connecting groove, thereby ensuring the stability of the connection of the splicing ring 201. There is a certain sliding damping between the insertion rod 301 and the slot to reduce the slipping of the insertion rod 301.

[0027] In order to ensure the stability of the insertion rod 301, a clamping piece is provided on the insertion rod 301, and the clamping piece includes a slide rod 401 and a clamping rod 402. A slide groove 403 is provided on the insertion rod 301, and the slide rod 401 is slidably installed inside the slide groove 403. A tension spring 404 is connected between the slide rod 401 and the inner wall of the slide groove 403. A clamping groove is provided on the side of the slide rod 401 away from the insertion rod 301, and the clamping rod 402 is slidably installed inside the clamping groove. The clamping rod 402 contacts the splicing ring 201, and the slide rod is pulled 401 stretches the tensioning spring 404 to expose the card slot, inserts the card rod 402 into the card slot, loosens the slide bar 401, and under the action of the tensioning spring 404, the slide bar 401 moves toward the inside of the plug rod 301, driving the card rod 402 to press against the surface of the splicing ring 201, thereby limiting the slide bar 401 and the plug rod 301, preventing the plug rod 301 from falling out of the slot, thereby preventing the elastic connecting piece 202 from falling out of the connecting slot, and ensuring the stability of the splicing ring 201.

[0028] The working principle or use process of the armored safety cable is as follows: The mechanical protection, corrosion resistance and anti-interference ability of the cable are enhanced by the armor layer 1 5 and the armor layer 2 6. The elastic connecting piece 202 is inserted into the interior of the connecting groove, and multiple splicing rings 201 are spliced ​​into a whole ring and wrapped around the outside of the outer sheath 3. The distance between two adjacent mounting seats is adjusted, and the metal protective wire 101 is installed between the two mounting seats through the hook 10. At the same time, the installation angle and position of the metal protective wire 101 can be adjusted, and the hook 10 is hung on a suitable hanging ring 9. According to the length of the cable, a suitable number of mounting seats are selected, and the outer sheath 3 of the cable is more comprehensively protected by the mounting seats and the metal protective wire 101; Insert the insertion rod 301 into the slot, make the baffle 302 and the splicing ring 201 close to each other, pull the slide bar 401 to make the slot exposed, insert the clamping rod 402 into the slot, loosen the slide bar 401, and drive the slide bar 401 under the action of the tension spring 404 so that the clamping rod 402 is pressed against the surface of the splicing ring 201, limit the insertion rod 301, and ensure the stability of the splicing of the splicing ring 201; When the protective assembly needs to be disassembled, the slide bar 401 can be pulled to push the card rod 402 out from the inside of the card slot, and then the slide bar 401 can be pushed to push the plug rod 301 out from the inside of the slot, and the splicing ring 201 can be pulled to pull the elastic connecting piece 202 out of the connecting slot to disassemble the mounting seat. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An armored safety cable, comprising a conductor (1), an insulating layer (2) and an outer sheath (3), wherein the insulating layer (2) is wrapped around the outside of the conductor (1), characterized in that: Also includes: An inner lining layer (4), the insulating layer (2) being located inside the inner lining layer (4), and a filler (7) being provided between the insulating layer (2) and the inner lining layer (4); An armor layer (5), the armor layer (5) being wrapped around the outside of the inner lining layer (4), the armor layer (5) comprising a plurality of metal flexible rods; Armour layer 2 (6), the armour layer 2 (6) being located outside the armour layer 2 (6), an isolation layer (8) being provided between the armour layer 2 (6) and the armour layer 1 (5), the armour layer 2 (6) being a steel strip, and the outer sheath (3) being wrapped around the outside of the armour layer 2 (6); A protection component, the protection component is arranged outside the outer sheath (3) and is used to protect the outer sheath (3), the protection component comprising: A mounting seat, a plurality of mounting seats are provided, and the mounting seats are arranged outside the outer sheath (3); A metal protection wire (101), wherein the metal protection wire (101) is detachably connected between two adjacent mounting seats.

2. An armored safety cable according to claim 1, characterized in that: The mounting base is a splicing structure, and the mounting base includes: A splicing ring (201), wherein a plurality of the splicing rings (201) are provided, and the plurality of splicing rings (201) are connected end to end to form a complete ring that wraps around the outside of the outer sheath (3); An elastic connecting piece (202) is fixedly connected to one end of the splicing ring (201), and the other end of the splicing ring (201) is provided with a connecting groove matching the elastic connecting piece (202).

3. An armored safety cable according to claim 2, characterized in that: Both ends of the splicing ring (201) are fixedly connected to a plurality of hanging rings (9), and both ends of the metal protection wire (101) are rotatably connected to hooks (10) matching the hanging rings (9).

4. The armored safety cable according to claim 3, characterized in that: An anti-skid pad (11) is fixedly connected to the inner side of the splicing ring (201), and the anti-skid pad (11) is in contact with the outer side of the outer sheath (3).

5. The armored safety cable according to claim 4, characterized in that: The elastic connecting piece (202) is bent into a rhombus shape.

6. An armored safety cable according to claim 5, characterized in that: It also includes a limiting member, which is used to limit the position of the splicing ring (201), and the limiting member includes: An insertion rod (301), the splicing ring (201) is provided with a slot matching the insertion rod (301), the slot is connected to the connection groove, and the insertion rod (301) can pass through the elastic connection sheet (202); A baffle (302), the baffle (302) being fixedly connected to the insertion rod (301), the baffle (302) being in contact with the splicing ring (201).

7. An armored safety cable according to claim 6, characterized in that: The insertion rod (301) is provided with a clamping piece, and the clamping piece comprises: A slide rod (401), a slide groove (403) is provided on the insertion rod (301), the slide rod (401) is slidably installed inside the slide groove (403), and a tension spring (404) is connected between the slide rod (401) and the inner wall of the slide groove (403); A clamping rod (402), a clamping groove is provided on a side of the sliding rod (401) away from the insertion rod (301), the clamping rod (402) is slidably mounted inside the clamping groove, and the clamping rod (402) is in contact with the splicing ring (201).

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