Multi-layer composite cable

Abstract

The utility model discloses a multilayer composite cable, which comprises a conductive cable, a first composite layer, a second composite layer, a third composite layer, a fourth composite layer, a fifth composite layer and a sixth composite layer are sequentially sleeved outside the conductive cable, and the multilayer composite cable is characterized by further comprising a plurality of baffle rings, a first sleeve and a second sleeve, the baffle ring is arranged between the first composite layer and the second composite layer, the baffle ring is arranged between the third composite layer and the fourth composite layer, and the baffle ring is arranged between the fifth composite layer and the sixth composite layer; a plurality of baffle rings, a first sleeve and a second sleeve which are used for separating the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer are arranged among the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer; a plurality of interlayers are formed among the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer, so that functional filling agents with different functions can be conveniently filled into the interlayers.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a multi-layer composite cable. Background Art

[0002] In specific applications, cables are often configured to have special protective functions because they are required to have multiple layers. Through different coating materials, the cables have fireproof and moisture-proof functions. In most cases, this function is determined by the characteristics of the coated protective layer, that is, the fireproof layer is coated to make the cable fireproof, and the moisture-proof layer is coated to make the cable moisture-proof. The existing multi-layer composite method of cables is to wrap the composite layer around the outer periphery of the cable. Each composite layer fits tightly, and it is impossible to fill some functional fillers between the composite layers, such as filling fire retardants, etc., to improve the fire resistance of the composite layer. People have conducted a lot of research on this. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a multi-layer composite cable, which can solve the above-mentioned problems in the prior art.

[0004] The utility model is realized through the following technical scheme: a multi-layer composite cable of the utility model comprises a conductive cable, the outer side of which is sequentially sleeved with a first composite layer, a second composite layer, a third composite layer, a fourth composite layer, a fifth composite layer and a sixth composite layer, and is characterized in that it also comprises a plurality of retaining rings, a first sleeve and a second sleeve, the retaining ring being arranged between the first composite layer and the second composite layer, the retaining ring being arranged between the third composite layer and the fourth composite layer, and the retaining ring being arranged between the fifth composite layer and the sixth composite layer, and also comprises a plurality of plug-in rods, the plug-in rods passing through the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer, the first sleeve and the second sleeve being sleeved on the outer surface of the plug-in rods, the first sleeve being arranged between the fourth composite layer and the fifth composite layer, the second sleeve being arranged between the third composite layer and the second composite layer, the plug-in rod passing through the outer surface of the sixth composite layer and extending into the interior of the first composite layer and being threadedly connected.

[0005] A further technical solution is that the plug-in rod includes a first rod, a second rod is arranged on one side of the first rod, a third rod is arranged on one side of the second rod, the first rod passes through the sixth composite layer, the fifth composite layer and the fourth composite layer, the second rod passes through the third composite layer and the second composite layer, and the third rod passes through the first composite layer and is threadedly connected with the threaded hole on the outer surface of the first composite layer.

[0006] According to a further technical solution, the diameters of the first rod, the second rod and the third rod gradually decrease.

[0007] According to a further technical solution, annular grooves are arranged on both sides of the retaining ring, and convex rings are arranged on one side of the retaining ring toward the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer, and the convex rings are arranged to abut against the grooves.

[0008] According to a further technical solution, a plurality of insertion holes are provided in the groove, and the first rod, the second rod and the third rod pass through the insertion holes.

[0009] According to a further technical solution, the diameter of the insertion hole located on one side of the first rod is the same as that of the first rod.

[0010] According to a further technical solution, the diameter of the insertion hole located on one side of the second rod is the same as that of the second rod.

[0011] According to a further technical solution, the diameter of the insertion hole located on one side of the third rod is the same as that of the third rod.

[0012] According to a further technical solution, the inner diameter of the first sleeve is the same as the diameter of the first rod.

[0013] According to a further technical solution, the inner diameter of the second sleeve is the same as the diameter of the second rod.

[0014] The beneficial effects of the utility model are:

[0015] 1. By arranging the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer layer by layer, and separating them by using the plug-in rod, the second sleeve and the first sleeve, a plurality of separation spaces are formed between the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer, so as to facilitate filling the separation spaces with functional composite layers and functional fillers, so that the cable forms a multi-layer composite structure.

[0016] Second, the plug-in rod is divided into a first rod, a second rod and a third rod, so that the diameters of the first rod, the second rod and the third rod are gradually reduced to form a stepped shape, and the third rod is threadedly connected to the threaded hole. The third rod, the second rod, the first rod, the second sleeve, the first sleeve and the retaining ring form a relatively stable supporting structure, so that the interior of the multi-layer cable is fully supported, which is convenient for maintaining the spacing between the first composite layer, the second composite layer, the third composite layer, the fourth composite layer, the fifth composite layer and the sixth composite layer, and is convenient for subsequent filling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of a multi-layer composite cable of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the cutaway structure of the cable;

[0020] Figure 3 for Figure 2 Schematic diagram at A in the middle;

[0021] Figure 4 for Figure 3 Schematic diagram at B in the middle;

[0022] Figure 5 for Figure 3 Schematic diagram at C in the middle;

[0023] Figure 6 for Figure 3 Schematic diagram at D in the middle;

[0024] In the figure, the first composite layer 11, the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15, the sixth composite layer 16, the conductive cable 17, the first rod 21, the socket 23, the groove 24, the retaining ring 25, the second rod 32, the first sleeve 33, the threaded hole 41, the third rod 42, and the second sleeve 43. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 6 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1The projection relationship of the utility model is consistent in up, down, left, right, front and back directions. A multilayer composite cable of the utility model comprises a conductive cable 17. The outer side of the conductive cable 17 is sequentially sleeved with a first composite layer 11, a second composite layer 12, a third composite layer 13, a fourth composite layer 14, a fifth composite layer 15 and a sixth composite layer 16. It is characterized in that a plurality of retaining rings 25, a first sleeve 33 and a second sleeve 43 are arranged between the first composite layer 11, the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15 and the sixth composite layer 16 to separate them from each other. The retaining ring 25 is a circular ring structure and is arranged between the first composite layer 11 and the second composite layer 12. The retaining ring 25 is arranged between the third composite layer 13 and the fourth composite layer 14, and the retaining ring 25 is arranged between the fifth composite layer 15 and the sixth composite layer 16. It also includes a plurality of plug-in rods, which pass through the first composite layer 11, the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15 and the sixth composite layer 16. The first sleeve 33 and the second sleeve 43 are sleeved on the outer surface of the plug-in rods. The first sleeve 33 is arranged between the fourth composite layer 14 and the fifth composite layer 15, and the second sleeve 43 is arranged between the third composite layer 13 and the second composite layer 12. The plug-in rod passes through the outer surface of the sixth composite layer 16 and extends into the interior of the first composite layer 11 and is threadedly connected.

[0026] Advantageously, the plug-in rod includes a first rod 21, a second rod 32 is provided on one side of the first rod 21, a third rod 42 is provided on one side of the second rod 32, the diameters of the first rod 21, the second rod 32 and the third rod 42 gradually decrease, the first rod 21 passes through the sixth composite layer 16, the fifth composite layer 15 and the fourth composite layer 14, the second rod 32 passes through the third composite layer 13 and the second composite layer 12, and the third rod 42 passes through the first composite layer 11 and is threadedly connected with the threaded hole 41 on the outer surface of the first composite layer 11.

[0027] Advantageously, annular grooves 24 are provided on both sides of the retaining ring 25, and a convex ring 26 is provided on the side of the first composite layer 11, the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15 and the sixth composite layer 16 facing the retaining ring 25. The convex ring 26 is arranged in an annular manner and is arranged to abut against the groove 24.

[0028] Advantageously, a plurality of insertion holes 23 are disposed in the groove 24 , and the first rod 21 , the second rod 32 and the third rod 42 are disposed against the insertion holes 23 after passing through the insertion holes 23 .

[0029] Advantageously, the diameter of the insertion hole 23 located on one side of the first rod 21 is the same as that of the first rod 21 .

[0030] Advantageously, the diameter of the insertion hole 23 located on one side of the second rod 32 is the same as that of the second rod 32 .

[0031] Advantageously, the diameter of the insertion hole 23 located on one side of the third rod 42 is the same as that of the third rod 42 .

[0032] Advantageously, the inner diameter of the first sleeve 33 is the same as the diameter of the first rod 21 .

[0033] Advantageously, the inner diameter of the second sleeve 43 is the same as the diameter of the second rod 32 .

[0034] By arranging a plurality of retaining rings 25, a first sleeve 33 and a second sleeve 43 between the first composite layer 11, the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15 and the sixth composite layer 16 to separate them from each other, a plurality of interlayers are formed between the first composite layer 11, the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15 and the sixth composite layer 16, so as to facilitate filling functional fillers with different functions into the interlayers.

[0035] Since the first sleeve 33 is sleeved on the surface of the first rod 21 and the first sleeve 33 is arranged between the fifth composite layer 15 and the fourth composite layer 14, and since the second sleeve 43 is sleeved on the outer surface of the second rod 32 and the second sleeve 43 is arranged between the third composite layer 13 and the second composite layer 12, a connected sandwich structure is formed between the fourth composite layer 14 and the fifth composite layer 15 and between the third composite layer 13 and the second composite layer 12, and some functional composite layers and functional fillers can be placed, such as: fireproof layer, insulating layer, silicone glue, etc.

[0036] Due to the provision of the baffle rings 25, a relatively closed interlayer space is formed between the adjacent baffle rings 25, and some functional composite layers and functional fillers can also be placed therein.

[0037] When producing the cable, firstly, the second composite layer 12, the retaining ring 25 and the first composite layer 11 and the fourth composite layer 14, the retaining ring 25 and the third composite layer 13 and the sixth composite layer 16, the retaining ring 25 and the fifth composite layer 15 are respectively sleeved to form a plurality of cylinders, and then the cylinders are sleeved layer by layer, the plug-in rod is passed through the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15 and the sixth composite layer 16, and the second sleeve 43 is sleeved on the outside of the second rod 32, and the first sleeve 33 is sleeved on the outside of the first rod 21, so that the second sleeve 43 is located between the third composite layer 13 and the second composite layer 12, and the first sleeve 33 is located between the fifth composite layer 15 and the fourth composite layer 14, and the third rod 42 is threadedly connected with the threaded hole 41 in the first composite layer 11. That is, a multi-layer composite structure can be formed in the cable by filling functional fillers or functional composite layers between the first composite layer 11 , the second composite layer 12 , the third composite layer 13 , the fourth composite layer 14 , the fifth composite layer 15 and the sixth composite layer 16 .

[0038] Since the retaining ring 25 is made of hard material, such as engineering plastics, and the first composite layer 11, the second composite layer 12, the third composite layer 13, the fourth composite layer 14, the fifth composite layer 15 and the sixth composite layer 16 are made of rubber, there is a certain elasticity when the convex ring 26 is inserted into the groove 24 to facilitate the cooperation between the two.

[0039] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A multi-layer composite cable, comprising a conductive cable (17), wherein a first composite layer (11), a second composite layer (12), a third composite layer (13), a fourth composite layer (14), a fifth composite layer (15) and a sixth composite layer (16) are sequentially sheathed on the outer side of the conductive cable (17), characterized in that: The invention also includes a plurality of retaining rings (25), a first sleeve (33) and a second sleeve (43), wherein the retaining ring (25) is arranged between the first composite layer (11) and the second composite layer (12), the retaining ring (25) is arranged between the third composite layer (13) and the fourth composite layer (14), and the retaining ring (25) is arranged between the fifth composite layer (15) and the sixth composite layer (16), and further includes a plurality of plug-in rods, wherein the plug-in rods pass through the first composite layer (11), the second composite layer (12), the third composite layer (13), the fourth composite layer (14), and the fifth composite layer (15). The invention relates to a composite layer (14), a fifth composite layer (15) and a sixth composite layer (16), wherein the first sleeve (33) and the second sleeve (43) are sleeved on the outer surface of the plug-in rod, the first sleeve (33) is arranged between the fourth composite layer (14) and the fifth composite layer (15), the second sleeve (43) is arranged between the third composite layer (13) and the second composite layer (12), and the plug-in rod passes through the outer surface of the sixth composite layer (16) and then extends into the interior of the first composite layer (11) and is threadedly connected.

2. A multilayer composite cable according to claim 1, characterized in that: The plug-in rod comprises a first rod (21), a second rod (32) is arranged on one side of the first rod (21), a third rod (42) is arranged on one side of the second rod (32), the first rod (21) passes through the sixth composite layer (16), the fifth composite layer (15) and the fourth composite layer (14), the second rod (32) passes through the third composite layer (13) and the second composite layer (12), and the third rod (42) passes through the first composite layer (11) and is threadedly connected to a threaded hole (41) on the outer surface of the first composite layer (11).

3. A multilayer composite cable according to claim 2, characterized in that: The diameters of the first rod (21), the second rod (32) and the third rod (42) gradually decrease.

4. A multilayer composite cable according to claim 2, characterized in that: Annular grooves (24) are arranged on both sides of the retaining ring (25), and convex rings (26) are arranged on the first composite layer (11), the second composite layer (12), the third composite layer (13), the fourth composite layer (14), the fifth composite layer (15) and the sixth composite layer (16) facing the retaining ring (25), and the convex rings (26) are arranged to abut against the grooves (24).

5. A multilayer composite cable according to claim 4, characterized in that: A plurality of insertion holes (23) are arranged in the groove (24), and the first rod (21), the second rod (32) and the third rod (42) pass through the insertion holes (23).

6. A multi-layer composite cable according to claim 5, characterized in that: The diameter of the insertion hole (23) located on one side of the first rod (21) is the same as that of the first rod (21).

7. A multi-layer composite cable according to claim 5, characterized in that: The diameter of the insertion hole (23) located on one side of the second rod (32) is the same as that of the second rod (32).

8. A multi-layer composite cable according to claim 5, characterized in that: The diameter of the insertion hole (23) located on one side of the third rod (42) is the same as that of the third rod (42).

9. A multi-layer composite cable according to claim 2, characterized in that: The inner diameter of the first sleeve (33) is the same as the diameter of the first rod (21).

10. A multi-layer composite cable according to claim 2, characterized in that: The inner diameter of the second sleeve (43) is the same as the diameter of the second rod (32).

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