Multilayer protection fireproof control cable

Abstract

The utility model discloses a multi-layer protection fireproof control cable, which belongs to the technical field of cables and comprises a plurality of control cable cores and a fireproof outer layer arranged on the periphery of the plurality of control cable cores, and an L-shaped mounting plate is arranged on the periphery of the fireproof outer layer. A plurality of fixing belts which are arranged at equal intervals and are used for fixing the fireproof outer layer are adhered to the top end and the side surface of the mounting plate; a plurality of lower limiting channels allowing the fixing belts on the side face to penetrate through are formed in the upper transverse wall of the mounting plate, a plurality of upper limiting channels allowing the fixing belts at the top end to penetrate through are formed in the vertical side face of the mounting plate, and after two fixing belts corresponding in position are tied, the fixing belts are used for binding and fixing the fireproof outer layer; a plurality of connecting blocks are fixedly connected to the top end of the mounting plate, round holes allowing fixing bolts to penetrate through are formed in the side faces of the connecting blocks, and the fireproof outer layer is made of ceramic silicone rubber. The multi-layer protection fire-resistant control cable not only can be supported and fixed, but also can be used for protection, fire resistance and buffer protection.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, and in particular to a multi-layer protective fire-resistant control cable. Background Technology

[0002] The application of control cables varies, resulting in different characteristics and requirements. In particularly demanding applications such as large-scale construction projects, subways, power plants, and nuclear power plants, cables are required to possess not only excellent flame retardant, fire-resistant, low-smoke, and halogen-free properties, but also multiple layers of protection including waterproofing, termite resistance, and resistance to mechanical forces. In practical use, if multiple cables are used simultaneously without proper fixing and support, they are prone to tangling and are difficult to manage.

[0003] A search revealed a Chinese patent document (authorization announcement number CN219457190U) entitled "A Fire-Resistant Control Cable with Multi-Layer Protection," comprising an abrasion-resistant layer, a first protective layer inside the abrasion-resistant layer, a second protective layer inside the first protective layer, an armor layer inside the second protective layer, a fire-resistant layer inside the armor layer, and a metal mesh layer inside the fire-resistant layer. The advantages of this invention are: the abrasion-resistant layer provides abrasion resistance and resists mechanical damage; the first and second protective layers prevent damage from termites and other insects; the armor layer prevents rodent damage and enhances the cable's strength and toughness; and the fire-resistant layer provides fire resistance, thus increasing the cable's service life. However, in practical use, if multiple strands of the cable are used simultaneously, the lack of fixing and support makes the cables prone to tangling and difficult to manage. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer protective fire-resistant control cable to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer fire-resistant control cable, comprising multiple control cable cores and a fireproof outer layer disposed around the multiple control cable cores, wherein an L-shaped mounting plate is disposed around the outer periphery of the fireproof outer layer, and multiple equidistant fixing straps for fixing the fireproof outer layer are glued to the top and sides of the mounting plate.

[0006] The upper horizontal wall of the mounting plate has multiple lower limit channels for the side fixing straps to pass through, and the vertical side of the mounting plate has several upper limit channels for the top fixing straps to pass through. After the fixing straps at the two positions are tied together, they are used to bind and fix the fireproof outer layer.

[0007] The top of the mounting plate is fixedly connected to multiple connecting blocks, and the sides of the connecting blocks have round holes for fixing bolts to pass through.

[0008] As a preferred embodiment, the fireproof outer layer is made of ceramicized silicone rubber, and an aging-resistant middle layer is provided on the inner side of the fireproof outer layer.

[0009] As a preferred embodiment, the aging-resistant middle layer is made of hydrogenated nitrile rubber, and a shielding inner layer is provided on the inner side of the aging-resistant middle layer.

[0010] As a preferred embodiment, the material of the shielding inner layer is aluminum.

[0011] As a preferred embodiment, a protective outer layer is provided on the outer periphery of each of the multiple control cable cores, and a filler is provided between the protective outer layer and the shielding inner layer.

[0012] As a preferred embodiment, both the filler and the protective outer layer are made of rubber.

[0013] As a preferred embodiment, an anti-slip pad is adhered to the inside of the mounting plate.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0015] In actual use, this multi-layer protective fire-resistant control cable is supported by an installation plate to ensure overall stability. It is fixed with fixing straps to further enhance stability. The number of fixing straps is adjustable to meet the fixing needs of multiple cables. The lower and upper limit channels allow the fixing straps to pass through and wrap around, thereby enhancing the fixing effect of the internal cables. It is not simply wrapped around the outer periphery of multiple cables.

[0016] This multi-layered fire-resistant control cable combines a fire-resistant outer layer, an aging-resistant middle layer, and a shielding inner layer to provide multi-layered protection for the control cable core. The fire-resistant outer layer ensures fire resistance, and both the filler and the outer protective layer are made of rubber, which provides cushioning protection for the control cable core.

[0017] This multi-layered fire-resistant control cable not only provides support and fixation, but also offers protection, fire resistance, and buffering. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention after fixing the multi-strand cable;

[0021] Figure 3 This is a schematic diagram of the fireproof outer layer of this utility model;

[0022] Figure 4 This is a structural schematic diagram of the mounting plate and fixing strap of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] In the picture:

[0025] 1. Control cable core; 2. Fireproof outer layer; 3. Mounting plate; 4. Fixing strap; 5. Lower limit channel; 6. Upper limit channel; 7. Connecting block; 8. Aging-resistant middle layer; 9. Shielding inner layer; 10. Protective outer layer; 11. Filler; 12. Anti-slip pad. Detailed Implementation

[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0027] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0028] The connection method can adopt existing methods such as bonding, welding, and bolting, depending on the actual needs. Techniques, methods and equipment known to those skilled in the art may not be discussed in detail. However, where appropriate, the techniques, methods and equipment should be regarded as part of the specification. The proportions of the components in the drawings are for reference only and can be adjusted to a certain extent according to the actual use.

[0029] Please see Figures 1 to 4 As shown, a multi-layer fire-resistant control cable is provided. In this embodiment, it includes multiple control cable cores 1 and a fireproof outer layer 2 disposed around the multiple control cable cores 1. An L-shaped mounting plate 3 is disposed around the outer periphery of the fireproof outer layer 2. Multiple fixing straps 4 arranged at equal intervals for fixing the fireproof outer layer 2 are glued to the top and sides of the mounting plate 3.

[0030] The upper horizontal wall of the mounting plate 3 has multiple lower limit channels 5 for the side fixing straps 4 to pass through, and the vertical side of the mounting plate 3 has multiple upper limit channels 6 for the top fixing straps 4 to pass through. The lower limit channels 5 and upper limit channels 6 allow the fixing straps 4 to pass through and wrap around, thereby enhancing the fixing effect of the internal cables. Instead of directly wrapping around the outer periphery of multiple cables, the mounting plate 3 has an anti-slip pad 12 bonded to the inner side. After the fixing straps 4 at two corresponding positions are tied together, they are used to bind and fix the fireproof outer layer 2. The cable to be fixed is placed on the anti-slip pad 12, and the fixing straps 4 are passed through the lower limit channels 5 and upper limit channels 6 for fixing. Then, a new cable is placed, and finally the fixing straps 4 are tied and fixed.

[0031] The top of the mounting plate 3 is fixedly connected with multiple connecting blocks 7. The number and height of the connecting blocks 7 are selected according to actual needs. The side of the connecting blocks 7 is provided with round holes for the fixing bolts to pass through. In actual use, the connecting blocks 7 are installed in the designated position using the fixing bolts.

[0032] The fireproof outer layer 2 is made of ceramicized silicone rubber. An aging-resistant middle layer 8 is provided inside the fireproof outer layer 2. The aging-resistant middle layer 8 is made of hydrogenated nitrile rubber. A shielding inner layer 9 is provided inside the aging-resistant middle layer 8. The shielding inner layer 9 is made of aluminum. The fireproof outer layer 2, the aging-resistant middle layer 8 and the shielding inner layer 9 work together to achieve multi-layer protection for the control cable core.

[0033] A protective outer layer 10 is provided on the outer periphery of multiple control cable cores 1. A filler 11 is provided between the protective outer layer 10 and the shielding inner layer 9. The filler 11 and the protective outer layer 10 are both made of rubber, which can provide buffer protection for the control cable cores 1.

[0034] Working principle

[0035] In actual use, the connecting block 7 is installed in the designated position using fixing bolts, the cable to be fixed is placed on the anti-slip pad 12, the fixing strap 4 is passed through the lower limit channel 5 and the upper limit channel 6 for fixing, then a new cable is placed, and finally the fixing strap 4 is tied and fixed.

[0036] The fireproof outer layer 2, the aging-resistant middle layer 8, and the shielding inner layer 9 work together to provide multi-layer protection for the control cable core. The fireproof outer layer 2 ensures fire resistance, and the filler 11 and the protective outer layer 10 are both made of rubber, which can buffer and protect the control cable core 1.

[0037] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

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

Claims

1. A multi-layer fire-resistant control cable, comprising multiple control cable cores (1) and a fire-resistant outer layer (2) disposed around the periphery of the multiple control cable cores (1), characterized in that, The fireproof outer layer (2) is provided with an L-shaped mounting plate (3) on its outer periphery. Multiple fixing straps (4) arranged at equal intervals for fixing the fireproof outer layer (2) are glued to the top and sides of the mounting plate (3). The upper horizontal wall of the mounting plate (3) is provided with multiple lower limit channels (5) through which the side fixing straps (4) pass, and the vertical side of the mounting plate (3) is provided with multiple upper limit channels (6) through which the top fixing straps (4) pass. After the fixing straps (4) at the two positions are tied together, they are used to bind and fix the fireproof outer layer (2). The top of the mounting plate (3) is fixedly connected to a plurality of connecting blocks (7), and the side of the connecting blocks (7) is provided with round holes for fixing bolts to pass through.

2. The multi-layer protective fire-resistant control cable according to claim 1, characterized in that, The fireproof outer layer (2) is made of ceramicized silicone rubber, and an aging-resistant middle layer (8) is provided on the inner side of the fireproof outer layer (2).

3. The multi-layer protective fire-resistant control cable according to claim 2, characterized in that, The aging-resistant middle layer (8) is made of hydrogenated nitrile rubber, and a shielding inner layer (9) is provided on the inner side of the aging-resistant middle layer (8).

4. The multi-layer protective fire-resistant control cable according to claim 3, characterized in that, The material of the inner shielding layer (9) is aluminum.

5. A multi-layer protective fire-resistant control cable according to claim 4, characterized in that, Each of the multiple control cable cores (1) is provided with a protective outer layer (10), and a filler (11) is provided between the protective outer layer (10) and the shielding inner layer (9).

6. A multi-layer protective fire-resistant control cable according to claim 5, characterized in that, Both the filler (11) and the protective outer layer (10) are made of rubber.

7. A multi-layer protective fire-resistant control cable according to claim 1, characterized in that, An anti-slip pad (12) is adhered to the inside of the mounting plate (3).

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