High-temperature-resistant control cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a high-temperature-resistant control cable which comprises a control cable body, and the outer side surface of one end of the control cable body is connected with a first protective shell. According to the utility model, the positioning blocks on the first connecting blocks at the two ends of the first protective shell slide into the positioning grooves in the limiting blocks, and then the positioning blocks on the second connecting blocks at the two ends of the second protective shell slide into the positioning grooves in the limiting blocks, so that the first connecting blocks are in contact with the second connecting blocks; then bolts penetrate through the first connecting blocks and are screwed into the fixing holes in the second connecting blocks, so that the first protective shell and the second protective shell can be connected together, and then a plurality of metal hoops are installed on the fireproof cotton on the outer sides of the first protective shell and the second protective shell in a surrounding mode; the fireproof cotton arranged on the outer sides of the first protection shell and the second protection shell can improve the high-temperature-resistant fireproof performance of the control cable body, so that the control cable body is not liable to burn when being burnt by high-temperature open fire.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, specifically relating to a high-temperature resistant control cable. Background Technology

[0002] Control cables are cables used to transmit control signals, measurement signals, and commands, and are widely used in industrial automation, power systems, construction, and other fields.

[0003] When control cables are in use, some control cables use conventional insulation materials such as polyvinyl chloride to protect the conductors inside the cable. When a fire occurs in the environment where these control cables are used, the temperature of the environment where these control cables are used will rise. During this period, the external insulation material of the control cable is easily affected by the high temperature and may burn. This burning control cable can easily lead to the spread of fire, resulting in greater property damage.

[0004] Therefore, this utility model provides a high-temperature resistant control cable to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature resistant control cable, which aims to solve the problem that in the existing technology, when a fire occurs in the application scenario of these control cables, the temperature of the application scenario will rise, and during this period, the external insulation material of the control cable is easily affected by the high temperature and may burn.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant control cable, comprising a control cable body, a first protective shell connected to the outer surface of one end of the control cable body, and a second protective shell connected to the outer surface of the other end of the control cable body, one end surface of the first protective shell contacting the second protective shell, a first connecting block connected to both ends of the first protective shell, a second connecting block connected to both ends of the second protective shell, one end surface of the first connecting block contacting the second connecting block, and a bolt penetrating one side surface of the first connecting block, the other end of the bolt being threadedly connected to a fixing hole, the fixing hole being opened on the end surface of the second connecting block facing the first connecting block, limit blocks connected to the outer surfaces of both ends of the control cable body, fireproof cotton connected to the outer surfaces of both the first and second protective shells, and a metal clamp surrounding the outer surface of the fireproof cotton.

[0007] As a preferred embodiment of the high-temperature resistant control cable of this utility model, the dimensions of the first protective shell, the second protective shell, the first connecting block, and the second connecting block are matched with the dimensions of the control cable body.

[0008] As a preferred embodiment of the high-temperature resistant control cable of this utility model, a sealing strip is symmetrically connected to one end surface of the first protective shell facing the second protective shell, and one end of the sealing strip is engaged in a sealing groove symmetrically opened on one end surface of the second protective shell.

[0009] As a preferred embodiment of the high-temperature resistant control cable of this utility model, both the top surfaces of the first connecting block and the second connecting block are connected to positioning blocks. One end of the positioning block extends into the positioning groove, and the positioning groove is symmetrically opened on the outer surface of the limiting block. The positioning block and the limiting block are slidably connected through the positioning groove.

[0010] As a preferred embodiment of the high-temperature resistant control cable of this utility model, a threaded groove is provided on one end surface of the first connecting block on the outer side of the bolt, and a cover is connected inside the threaded groove. The outer surface of the end of the cover extending into the threaded groove is provided with surface threads, and the cover is threadedly connected to the threaded groove through the surface threads.

[0011] As a preferred embodiment of the high-temperature resistant control cable of this utility model, a sealing ring is connected around the outer surface of the other end of the cover, and one end of the sealing ring is engaged in a groove opened inside the threaded groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This invention connects the first and second protective shells by sliding the positioning blocks on the first connecting blocks at both ends of the first protective shell into the positioning grooves on the limiting blocks, and then sliding the positioning blocks on the second connecting blocks at both ends of the second protective shell into the positioning grooves on the limiting blocks. At this point, the first connecting blocks will come into contact with the second connecting blocks. Then, bolts are used to pass through the first connecting blocks and screw them into the fixing holes on the second connecting blocks, thus connecting the first and second protective shells together. Multiple metal clamps are then used to surround and install on the fireproof cotton on the outside of the first and second protective shells, so that the first and second protective shells are firmly attached to the outside of the control cable body. In this way, the fireproof cotton on the outside of the first and second protective shells can increase the high temperature and fire resistance of the control cable body, making it less likely to burn when the control cable body is exposed to high temperature open flames.

[0014] This utility model uses surface threads to screw one end of the cover into the threaded groove, allowing the cover to be installed and fixed on the first connecting block. At this time, the sealing ring on the cover will also move and engage with the groove, improving the sealing between the cover and the first connecting block. The cover can then protect the bolt, thereby reducing environmental corrosion of the bolt, increasing the service life of the bolt, and ensuring the stability of the bolt connection. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the partial explosion structure of this utility model;

[0018] Figure 3 This is a partial structural diagram of the first protective shell of this utility model;

[0019] Figure 4 This is a partial cross-sectional structural diagram of the threaded groove of this utility model.

[0020] In the diagram: 1. Control cable body; 2. First protective shell; 3. Second protective shell; 4. Sealing strip; 5. Sealing groove; 6. First connecting block; 7. Second connecting block; 8. Bolt; 9. Fixing hole; 10. Positioning block; 11. Positioning groove; 12. Limiting block; 13. Fireproof cotton; 14. Metal clamp; 15. Threaded groove; 16. Cover; 17. Surface thread; 18. Sealing ring; 19. Slot. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-4 The present invention provides the following technical solution: a high-temperature resistant control cable, comprising a control cable body 1, a first protective shell 2 connected to the outer surface of one end of the control cable body 1, and a second protective shell 3 connected to the outer surface of the other end of the control cable body 1, one end of the surface of the first protective shell 2 in contact with the second protective shell 3, a first connecting block 6 connected to both ends of the first protective shell 2, a second connecting block 7 connected to both ends of the second protective shell 3, one end of the surface of the first connecting block 6 in contact with the second connecting block 7, and a bolt 8 penetratingly connected to one side of the first connecting block 6, the other end of the bolt 8 threadedly connected to a fixing hole 9, the fixing hole 9 being opened on the end surface of the second connecting block 7 facing the first connecting block 6, limit blocks 12 connected to the outer surfaces of both ends of the control cable body 1, fireproof cotton 13 connected to the outer surfaces of both the first protective shell 2 and the second protective shell 3, and a metal clamp 14 surrounding the outer surface of the fireproof cotton 13.

[0023] Preferably, the dimensions of the first protective shell 2, the second protective shell 3, the first connecting block 6, and the second connecting block 7 are matched with the dimensions of the control cable body 1.

[0024] In practical use, the inner surfaces of the first protective shell 2, the second protective shell 3, the first connecting block 6, and the second connecting block 7 can all contact the outer surface of the control cable body 1, so that after the first protective shell 2, the second protective shell 3, the first connecting block 6, and the second connecting block 7 are installed, they can wrap around the control cable body 1.

[0025] Preferably, a sealing strip 4 is symmetrically connected to one end surface of the first protective shell 2 facing the second protective shell 3, and one end of the sealing strip 4 is engaged into a sealing groove 5 symmetrically opened on one end surface of the second protective shell 3.

[0026] In practical use, when the first protective shell 2 and the second protective shell 3 surround and wrap around the outside of the control cable body 1, the sealing strip 4 on the first protective shell 2 will engage with the sealing groove 5 on the second protective shell 3, thereby improving the sealing between the first protective shell 2 and the second protective shell 3.

[0027] Preferably, the top surfaces of the first connecting block 6 and the second connecting block 7 are both connected to positioning blocks 10. One end of the positioning block 10 extends into the positioning groove 11. The positioning groove 11 is symmetrically opened on the outer surface of the limiting block 12. The positioning block 10 and the limiting block 12 are slidably connected through the positioning groove 11.

[0028] In practical use, the positioning blocks 10 on the first connecting block 6 and the second connecting block 7 can slide into the positioning groove 11 on the limiting block 12, so that the first connecting block 6 and the second connecting block 7 can be accurately installed on the outside of the control cable body 1 with the first protective shell 2 and the second protective shell 3.

[0029] Preferably, a threaded groove 15 is provided on one end surface of the first connecting block 6 outside the bolt 8, and one end of the cover 16 is connected inside the threaded groove 15. The outer surface of the end of the cover 16 extending into the threaded groove 15 is provided with surface threads 17, and the cover 16 and the threaded groove 15 are connected by a threaded connection through the surface threads 17.

[0030] In practical use, the cover 16 can be screwed into the threaded groove 15 through the surface thread 17, so that the cover 16 can be fixed to the first connecting block 6. At this time, the bolt 8 will be inside the cover 16, so that the cover 16 can shield and protect the bolt 8.

[0031] Preferably, a sealing ring 18 is connected around the outer surface of the other end of the cover 16, and one end of the sealing ring 18 is engaged in the groove 19 opened inside the threaded groove 15.

[0032] In practical use, the sealing ring 18 is made of rubber. When one end of the cover 16 is screwed into the threaded groove 15 through the surface thread 17, the sealing ring 18 on the cover 16 will also move to the slot 19, so that the sealing ring 18 is elastically engaged in the slot 19, thereby increasing the sealing between the cover 16 and the first connecting block 6 and preventing external air from entering the interior of the cover 16.

[0033] It should be noted that the sealing strip 4 is made of silicone rubber. When silicone rubber comes into contact with an open flame, it will carbonize, forming a heat insulation layer that prevents the flame from spreading further and heat transfer, thus protecting the sealed parts. The first protective shell 2 and the second protective shell 3 are made of cross-linked polyethylene. Cross-linked polyethylene has good hardness, rigidity, wear resistance and impact resistance. The fireproof cotton 13 is ceramic fiber fireproof cotton, which gives it higher high temperature resistance. The number of metal clamps 14 installed can be determined according to actual needs.

[0034] Working principle: When using this high-temperature resistant control cable, first slide the positioning blocks 10 on the first connecting blocks 6 at both ends of the first protective shell 2 into the positioning grooves 11 on the limiting block 12. Then slide the positioning blocks 10 on the second connecting blocks 7 at both ends of the second protective shell 3 into the positioning grooves 11 on the limiting block 12. At this time, the first protective shell 2 and the second protective shell 3 will wrap around the control cable body 1. At the same time, the sealing strip 4 on the first protective shell 2 will also engage with the sealing groove 5, thereby increasing the sealing between the first protective shell 2 and the second protective shell 3. At this time, the first connecting blocks 6 and the second connecting blocks 7 on the first protective shell 2 and the second protective shell 3 will also come into contact. Then, use bolts 8 to pass through the first connecting block 6 and screw them into the fixing holes 9 on the second connecting block 7 to connect and fix the first connecting block 6 and the second connecting block 7 together. At this time, the first protective shell 2 and the second protective shell 3 will be on the outside of the control cable body 1 with the fixed fireproof cotton 13. Finally, multiple metal clamps 14 are installed around the outside of the fireproof cotton 13 to make the first protective shell 2 and the second protective shell 3 secure the control cable body 1. The protective shell 2 and the second protective shell 3 are firmly attached to the outside of the control cable body 1. The fireproof cotton 13 in this way can improve the high temperature resistance and fireproof performance of the control cable body 1. When the control cable body 1 is burned by high temperature open flame, it will be blocked by the fireproof cotton 13, making it less likely for the control cable body 1 to burn. Secondly, after the bolt 8 is installed, one end of the cover 16 is screwed into the threaded groove 15 through the surface thread 17, so that the cover 16 can be installed and fixed on the first connecting block 6. At this time, the sealing ring 18 on the cover 16 will also move and engage into the groove 19, improving the sealing between the cover 16 and the first connecting block 6. At this time, the cover 16 can shield and protect the bolt 8, thereby reducing the corrosion of the bolt 8 by the environment, improving the service life of the bolt 8, and ensuring the stability of the bolt 8 connection. After the cover 16 is screwed in the opposite direction, one end of the cover 16 can be separated from the threaded groove 15, so that the cover 16 can be removed. At this time, the bolt 8 will be exposed again, allowing the operator to operate the bolt 8 normally.

[0035] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high temperature resistant control cable comprising a control cable body (1), characterized in that: The control cable body (1) one end outer surface is connected with the first protective shell (2), and the control cable body (1) the other end outer surface is connected with the second protective shell (3), the first protective shell (2) one end surface is in contact with the second protective shell (3), the first protective shell (2) both ends surface is connected with the first connecting block (6), the second protective shell (3) both ends surface is connected with the second connecting block (7), the first connecting block (6) one end surface is in contact with the second connecting block (7), and the first connecting block (6) one side surface is connected with the bolt (8) in the way of penetrating, the other end of the bolt (8) is connected with the fixed hole (9) in the way of screwing, the fixed hole (9) is arranged in the second connecting block (7) one end surface towards the first connecting block (6), the control cable body (1) both ends outer surface is connected with the limiting block (12), the outer surface of the first protective shell (2) and the second protective shell (3) is connected with the fireproof cotton (13), the outer surface of the fireproof cotton (13) is connected with the metal hoop (14) in the way of surrounding.

2. A high temperature resistant control cable according to claim 1, characterized in that: The size of the first protective shell (2), the second protective shell (3), the first connecting block (6) and the second connecting block (7) matches the size of the control cable body (1).

3. A high temperature resistant control cable according to claim 1, characterized in that: The first protective shell (2) one end surface towards the second protective shell (3) is connected with the sealing strip (4) in the way of symmetry, one end of the sealing strip (4) is engaged into the sealing groove (5) which is symmetrically arranged in the second protective shell (3) one end surface.

4. A high temperature resistant control cable according to claim 1, characterized in that: The first connecting block (6) and the second connecting block (7) top surface are connected with the positioning block (10), one end of the positioning block (10) extends into the positioning groove (11), the positioning groove (11) is symmetrically arranged in the outer surface of the limiting block (12), the positioning block (10) and the limiting block (12) constitute a sliding connection through the positioning groove (11).

5. A high temperature resistant control cable according to claim 1, characterized in that: The first connecting block (6) one end surface outside the bolt (8) is provided with a threaded groove (15), one end of the cover (16) inside the threaded groove (15) is connected, the cover (16) extending into the threaded groove (15) one end outside surface is provided with a surface screw (17), the cover (16) and the threaded groove (15) constitute a threaded connection through the surface screw (17).

6. A high temperature resistant control cable according to claim 5, characterized in that: The cover (16) other end outside surface is connected with the sealing ring (18) in the way of surrounding, one end of the sealing ring (18) is engaged into the clamping groove (19) which is arranged inside the threaded groove (15).

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