Straight semi-armored cable for airport weak current engineering

Abstract

The utility model relates to the field of cables, and discloses a straight semi-armored cable for airport weak current engineering, which comprises a protective sleeve, and a plurality of cable harnesses are arranged in the protective sleeve. The semi-armored layer comprises an armored iron sheet, and a rectangular groove is formed between the top end wall surface and the bottom end wall surface of the armored iron sheet in a penetrating manner; the filling layer comprises a filling block; and the clamping structure is arranged on the armored iron sheet, and the clamping structure is used for limiting and clamping the rolled armored iron sheet. Through the arrangement of the semi-armored layer, the cable is more portable and flexible and is convenient to install and operate, through the arrangement of the rectangular groove in the armored iron sheet, the cable is lighter in weight and lower in transportation and installation cost, proper mechanical protection is provided, damage is not prone to being caused, and through the fact that the rat poison is pasted to the inner wall face of the rectangular groove through glue, the rat-proof capacity is high. And the cable has strong protection capability for areas with serious rodent damage, so that the safety and the reliability of the cable are ensured.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to a straight-wire semi-armored cable for airport weak current engineering. Background Art

[0002] In order to increase the mechanical strength of the cable, people usually add metal tubes or metal wire mesh as armor around the core wire of the cable to enhance the cable's anti-stuck strength and compressive strength to extend its service life. According to the classification, it can be divided into armored cable and semi-armored cable.

[0003] The prior art discloses a high-protection direct-buried semi-armored cable (CN113903516B), a core wire, the core wire includes a plurality of cable cores and a sheath wrapped around the plurality of cable cores, a memory foam is arranged outside the sheath, the memory foam is arranged on the cover with a buffer layer, the buffer layer is bent with a plurality of support sections, each support section is provided with a plurality of airbag layers evenly distributed in the axial length direction of the buffer layer at the bend, the airbag layer is provided with a plurality of through holes, the cavity between the support section and the airbag layer is filled with rat repellent powder, and a connecting strip is arranged on the side wall of the support section close to the airbag layer.

[0004] When the connecting strip of the cable of the prior art is damaged by mice, the buffer layer that recovers the deformation plays a certain role in driving away the mice, and the volume of the cavity between the supporting section that recovers the deformation and the corresponding airbag layer gradually decreases. The mouse repellent powder is squeezed out from a number of through holes by extrusion to drive away the mice, so that the cable has a better anti-rat effect. However, the semi-armor of the prior art is realized by a braided layer, which provides weak mechanical protection and is easy to cause the cable to break when encountering strong longitudinal shear force. In addition, when repairing the cable, the braided layer can only be cut off by shearing, which is not convenient for maintenance.

[0005] Therefore, those skilled in the art provide a straight-through semi-armored cable for airport weak current engineering to solve the problems raised in the above background technology. Utility Model Content

[0006] The utility model mainly solves the technical problems of protecting semi-armored cables and facilitating later repair, and provides a straight-through semi-armored cable for airport weak current engineering.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A straight-type semi-armored cable for airport weak-current engineering comprises a protective cover, which is buried in the airport underground in a straight row, a plurality of cable harnesses are arranged in the protective cover, and an insulating layer is commonly sheathed on the outer wall surface of the plurality of cable harnesses; a semi-armored layer, which is arranged between the protective cover and the plurality of cable harnesses, and the semi-armored layer comprises an armored iron sheet rolled up in a ring shape, and a rectangular groove is provided between the top and bottom wall surfaces of the armored iron sheet; a filling layer, which is located between the cable harness and the insulating layer, and the filling layer is located between two cable harnesses, and the filling layer comprises a filling block; a clamping structure, which is arranged on the armored iron sheet, and the clamping structure limits the rolled-up armored iron sheet.

[0009] According to the straight-through semi-armored cable for airport weak current engineering, the material of the protective sheath is polyvinyl chloride, and the material of the insulating layer is cross-linked polyethylene.

[0010] According to the straight-type semi-armored cable for airport weak current engineering, the rectangular grooves are evenly spaced on the top wall of the armored iron sheet, and rat poison can be pasted on the inner wall of the rectangular grooves by glue.

[0011] According to the straight-type semi-armored cable for airport weak current engineering, one end of the armored iron sheet is comb-shaped and forms a plurality of comb columns, and the clamping structure includes clamping blocks fixedly connected to both sides of the comb columns.

[0012] According to the straight-type semi-armored cable for airport weak current engineering, the cross-section of the locking block is a right triangle, and the armored iron sheet and the locking block are made of the same material, which is iron.

[0013] According to the straight-through semi-armored cable for airport weak current engineering, notches are provided on the wall surface of the armored iron sheet on one side away from the locking block, and the notches are distributed at equal intervals.

[0014] According to the straight-type semi-armored cable for airport weak current engineering, engaging grooves are provided on the wall surfaces on the opposite sides of the notch, and the engaging blocks can be movably engaged in the corresponding engaging grooves after the armored iron sheet is bent.

[0015] According to the straight-type semi-armored cable for airport weak current engineering, the material of the filling block is ABS plastic, and a wire mesh is fixedly passed through between the two ends of the filling block, and the wire mesh is located below the rectangular groove.

[0016] The utility model provides a straight-through semi-armored cable for airport weak current engineering, which has the following beneficial effects:

[0017] (1) By setting a semi-armored layer between the cable harness and the protective cover, the cable is made lighter and more flexible, which is convenient for installation and operation, and is more convenient to lay. By opening a rectangular groove on the armored iron sheet, the cable is lighter in weight, with lower transportation and installation costs, and provides appropriate mechanical protection, which is not easy to cause damage. By sticking rat poison on the inner wall of the rectangular groove with glue, the cable has strong anti-rat ability and has strong protection ability for areas with serious rodent infestation, thereby ensuring the safety and reliability of the cable.

[0018] (2) One end of the armored iron sheet is arranged in a comb shape to form a plurality of comb posts. The engaging structure includes engaging blocks fixedly connected to both sides of the comb posts. The cross section of the engaging blocks is a right triangle. A notch is provided on the wall surface of the armored iron sheet away from the engaging blocks. Engaging grooves are provided on the wall surfaces opposite to the notches. After the armored iron sheet is bent, the engaging blocks can be movably engaged in the corresponding engaging grooves. With this structural design, the armored iron sheet is more solid after being rolled up, and is easy to install and to maintain later.

[0019] (3) By setting a wire mesh to fix the filling block, the wire mesh is located below the rectangular groove, which can further provide a layer of protection for the cable to prevent rats from damaging the cable harness after passing through the rectangular groove. The reliability of the cable is further improved through reasonable structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the straight-through semi-armored cable for airport weak current engineering of the utility model;

[0021] Figure 2 This is a front view of the utility model of a straight-type semi-armored cable for airport weak current engineering;

[0022] Figure 3 This is a schematic diagram of the semi-armored layer structure of the straight-through semi-armored cable for airport weak current engineering of the utility model;

[0023] Figure 4 It is a schematic diagram of the unfolded structure of the semi-armored layer of the straight-through semi-armored cable for airport weak current engineering of the utility model;

[0024] Figure 5 The utility model is a schematic diagram of the filling block structure of the straight-wire semi-armored cable for airport weak current engineering.

[0025] Legend:

[0026] 10. Cable harness; 11. Filling layer; 12. Insulating layer; 13. Semi-armored layer; 14. Protective cover; 15. Armored iron sheet; 16. Snap-fit ​​block; 17. Notch; 18. Snap-fit ​​groove; 19. Rectangular groove; 20. Filling block; 21. Wire mesh. DETAILED DESCRIPTION

[0027] like Figure 1-5 As shown: a straight semi-armored cable for airport weak current engineering, comprising a protective cover 14, wherein the protective cover 14 is buried in a straight row underground at the airport, a plurality of cable harnesses 10 are arranged in the protective cover 14, and an insulating layer 12 is commonly sheathed on the outer wall surface of the plurality of cable harnesses 10; a semi-armored layer 13, wherein the semi-armored layer 13 is arranged between the protective cover 14 and the plurality of cable harnesses 10, and the semi-armored layer 13 comprises an armored iron sheet 15 rolled up in a ring shape, and a rectangular groove 19 is provided through the top and bottom wall surfaces of the armored iron sheet 15; a filling layer 11, wherein the filling layer 11 is located between the cable harness 10 and the insulating layer 12, and the filling layer 11 is located between two cable harnesses 10, and the filling layer 11 comprises a filling block 20; a clamping structure, wherein the clamping structure is arranged on the armored iron sheet 15, and the clamping structure performs a limit clamping on the rolled up armored iron sheet 15.

[0028] Specifically, by arranging a semi-armored layer 13 between the cable harness 10 and the protective cover 14, the cable becomes lighter and more flexible, which is convenient for installation and operation, and is more convenient to lay. By opening a rectangular groove 19 on the armored iron sheet 15, the cable is lighter in weight, has lower transportation and installation costs, and provides appropriate mechanical protection, which is not easy to cause damage. By sticking rat poison on the inner wall surface of the rectangular groove 19 with glue, the cable has a strong anti-rat ability and has a strong protection ability for areas with serious rodent infestation, thereby ensuring the safety and reliability of the cable.

[0029] The material of the protective cover 14 is polyvinyl chloride, and the material of the insulating layer 12 is cross-linked polyethylene.

[0030] Specifically, by setting the material of the protective cover 14 to be polyvinyl chloride, it can play a role of external protection, and the material of the insulating layer 12 is cross-linked polyethylene, it can play a role of insulation.

[0031] The rectangular grooves 19 are evenly spaced on the top wall of the armored iron sheet 15 , and rat poison can be pasted on the inner wall of the rectangular grooves 19 by glue.

[0032] Specifically, by opening a rectangular groove 19 on the armored iron sheet 15, rat poison can be pasted on the inner wall of the rectangular groove 19 by glue, which can effectively prevent rats. After the armored iron sheet 15 is rolled up, it can further protect the cable and is lighter in weight.

[0033] One end of the armored iron sheet 15 is comb-shaped and forms a plurality of combing columns, and the clamping structure includes a clamping block 16 fixedly connected to both sides of the combing column. The cross section of the clamping block 16 is a right triangle, and the armored iron sheet 15 and the clamping block 16 are made of the same material, which is iron. A notch 17 is provided on the wall surface of the armored iron sheet 15 away from the clamping block 16, and the notches 17 are distributed at equal intervals. A clamping groove 18 is provided on the wall surface of the side opposite to the notch 17, and the clamping block 16 can be movably clamped in the corresponding clamping groove 18 after the armored iron sheet 15 is bent.

[0034] Specifically, one end of the armored iron sheet 15 is arranged in a comb shape to form a plurality of comb columns, and the engaging structure includes engaging blocks 16 fixedly connected to both sides of the comb columns, the cross section of the engaging block 16 is a right triangle, a notch 17 is provided on the wall surface of the armored iron sheet 15 away from the engaging block 16, and engaging grooves 18 are provided on the wall surfaces on the sides opposite to the notches 17. After the armored iron sheet 15 is bent, the engaging blocks 16 can be movably engaged in the corresponding engaging grooves 18. Through this structural design, the armored iron sheet 15 is more firmly structured after being rolled up, and is convenient for installation and later maintenance.

[0035] The filling block 20 is made of ABS plastic. A wire mesh 21 is fixedly passed through the two ends of the filling block 20 . The wire mesh 21 is located below the rectangular groove 19 .

[0036] Specifically, by setting a wire mesh 21 to fix and penetrate the filling block 20, the wire mesh 21 is located below the rectangular groove 19, which can further provide a layer of protection for the cable to prevent rats from damaging the cable harness 10 after passing through the rectangular groove 19. The reliability of the cable is further improved through reasonable structural design.

[0037] The working principle of the straight-type semi-armored cable for airport weak current engineering in the present application is: by setting a semi-armored layer 13 between the cable harness 10 and the protective cover 14, the cable is provided with appropriate mechanical protection and is not easily damaged. Rat poison is set in the rectangular groove 19 on the armored iron sheet 15 to improve the rodent-proof performance of the cable. A snap-fit ​​structure is set to improve the stability of the semi-armored layer 13 structure, which is convenient for later maintenance. The wire mesh 21 is set to further improve the reliability of the cable.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. Straight-through semi-armored cable for airport weak current engineering, characterized by: include: A protective cover (14), wherein the protective cover (14) is buried in the airport underground in a straight row, a plurality of cable harnesses (10) are arranged in the protective cover (14), and an insulating layer (12) is commonly sheathed on the outer wall surfaces of the plurality of cable harnesses (10); A semi-armor layer (13), the semi-armor layer (13) being arranged between the protective cover (14) and the plurality of cable harnesses (10), the semi-armor layer (13) comprising an armor iron sheet (15) rolled up in a ring shape, a rectangular groove (19) being provided between the top and bottom wall surfaces of the armor iron sheet (15); A filling layer (11), the filling layer (11) being located between the cable harness (10) and the insulating layer (12), and the filling layer (11) being located between two cable harnesses (10), and the filling layer (11) comprising a filling block (20); A snap-fit ​​structure is provided on the armored iron sheet (15), and the snap-fit ​​structure performs position-limiting snap-fitting on the rolled-up armored iron sheet (15).

2. The straight-through semi-armored cable for airport weak current engineering according to claim 1 is characterized by: The material of the protective sleeve (14) is polyvinyl chloride, and the material of the insulating layer (12) is cross-linked polyethylene.

3. The straight-through semi-armored cable for airport weak current engineering according to claim 1 is characterized by: The rectangular grooves (19) are evenly spaced on the top wall of the armored iron sheet (15), and rat poison can be pasted on the inner wall of the rectangular grooves (19) by glue.

4. The straight-through semi-armored cable for airport weak current engineering according to claim 1 is characterized by: One end of the armored iron sheet (15) is in a comb shape and forms a plurality of comb columns, and the clamping structure comprises clamping blocks (16) fixedly connected to both sides of the comb columns.

5. The straight-through semi-armored cable for airport weak current engineering according to claim 4 is characterized by: The cross section of the engaging block (16) is in the shape of a right triangle, and the armored iron sheet (15) and the engaging block (16) are made of the same material, namely iron.

6. The straight-through semi-armored cable for airport weak current engineering according to claim 4 is characterized by: A notch (17) is provided on a wall surface of the armored iron sheet (15) which is away from the locking block (16), and the notches (17) are distributed at equal intervals.

7. The straight-through semi-armored cable for airport weak current engineering according to claim 6 is characterized by: The wall surfaces of the notches (17) opposite to each other are both provided with engaging grooves (18), and after the armored iron sheet (15) is bent, the engaging blocks (16) can be movably engaged in the corresponding engaging grooves (18).

8. The straight-through semi-armored cable for airport weak current engineering according to claim 1 is characterized by: The material of the filling block (20) is ABS plastic, and a wire mesh (21) is fixedly passed through between the two ends of the filling block (20), and the wire mesh (21) is located below the rectangular groove (19).

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