High-strength flame-retardant cable

Abstract

The utility model provides a high-strength flame-retardant cable, and belongs to the technical field of cables. Comprising cable bodies, a left sleeve and a sliding seat are fixedly connected to the two ends of the outer side of each cable body respectively, a rotating seat is slidably connected to the outer side of each sliding seat, a right sleeve is rotatably connected to the outer side of each rotating seat, and the left sleeve on the outer side of one cable body is in threaded connection with the right sleeve on the outer side of the adjacent cable body; the two sides of the left sleeve are fixedly connected with a connecting base and a bayonet socket respectively. The left sleeve, the sliding seat, the rotating seat and the right sleeve are arranged, so that the device is of an integrated structure, two cable bodies can be directly connected, the structural design of the outer protection layer and the filling layer is matched, the high-strength performance of the device is achieved, the right sleeve can slide on the outer side of the sliding seat, the right sleeve can be rotated through the rotating seat to be connected with the left sleeve, and the service life of the device is prolonged. And the sealing effect of the joint is ensured, the installation process is more convenient, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-strength flame-retardant cable. Background Technology

[0002] Flame-retardant cables are cables with special properties, using special insulation and sheath materials that make them less likely to ignite when exposed to fire.

[0003] The patent with publication number CN212874098U discloses a high-strength flame-retardant mineral-insulated cable, including an outer sheath. A fixing block is fitted onto the surface of the outer sheath. A second connecting block is defined at one end of the fixing block, and spring blocks are symmetrically arranged on both sides of the second connecting block. Grooves are symmetrically opened at both ends of the second connecting block. The bottom end of the spring block is inserted into the groove, and a connecting spring is connected between the spring block and the groove. A handle is fixed to the surface of the spring block. A first connecting block is fixed to the other end of the fixing block, and a slot adapted to the second connecting block is opened on the inner side of the first connecting block.

[0004] In the above case, the two ends of the cable are connected by a limiting block and a limiting slot, and a fixing block is fitted on the outside of the connection for sealing. Multiple fixing blocks are connected by the snap-fit ​​of the spring block and the slot to fix multiple sets of cables. However, the connection between the cables requires the copper core wires on the inside to be wound and connected. This means that the device needs to first fit the fixing block on the outside of one cable, connect the cable, and then slide the fixing block to the outside of the connection. However, this installation method cannot ensure the sealing of the connection, which reduces the practicality of the device.

[0005] Therefore, this utility model provides a high-strength flame-retardant cable to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to provide a high-strength flame-retardant cable to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-strength flame-retardant cable, comprising a cable body, with a left sleeve and a slide block fixedly connected to both ends of the outer side of the cable body, a rotating seat slidably connected to the outer side of the slide block, and a right sleeve rotatably connected to the outer side of the rotating seat, wherein one of the left sleeves on the outer side of the cable body is threadedly connected to the right sleeve on the outer side of the adjacent cable body, a connecting seat and a plug-in seat fixedly connected to both sides of the left sleeve, wherein the plug-in seat on the outer side of the left sleeve is slidably connected to the inside of the connecting seat on the outer side of the adjacent left sleeve, a fixing sleeve fixedly connected to the top of the connecting seat, a fixing rod slidably connected inside the fixing sleeve, and locking blocks fixedly connected to both sides of the bottom end of the fixing rod, a sliding groove adapted to the locking block being formed on both sides of the fixing sleeve, a rotating groove for the locking block to rotate being formed on both sides of the top end of the sliding groove, a plug-in groove adapted to the fixing rod and the locking block being formed inside the plug-in seat, and a locking groove for the locking block to rotate being formed on both sides of the bottom end of the plug-in groove inside the plug-in seat.

[0008] In a preferred embodiment, the cable body includes an outer sheath, a flame-retardant layer fixedly connected to the inner side of the outer sheath, a filler layer fixedly connected to the inner side of the flame-retardant layer, an inner sheath fixedly connected to the inner side of the filler layer, and a copper core wire fixedly connected to the inner side of the inner sheath.

[0009] In a preferred embodiment, the right sleeve is fixedly connected to a threaded sleeve at the end away from the cable body, and the left sleeve has a threaded groove adapted to the threaded sleeve inside.

[0010] In a preferred embodiment, a sealing ring is fixedly connected to the inner side of the rotating base, and a sealing gasket is fixedly connected to the contact surface between the rotating base and the right sleeve.

[0011] In a preferred embodiment, the connector includes an outer connector block, and the connector has a connector hole adapted to the connector block inside.

[0012] In a preferred embodiment, the insertion slot is located directly below the slide groove, and the connector seat has a connecting groove inside for connecting the insertion slot and the slide groove.

[0013] In a preferred embodiment, a rotating block is fixedly connected to the top of the fixing rod, and the rotating groove is located directly above the slot and has the same shape.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, by setting a left sleeve, a sliding block, a rotating block, and a right sleeve, makes the device an integrated structure that can directly connect two cable bodies. In addition, the structural design of the outer sheath and the filling layer achieves high strength performance of the device. The right sleeve can slide outside the sliding block, and the right sleeve can be rotated to connect with the left sleeve through the rotating block. This not only ensures the sealing effect at the connection, but also reserves space for the connection between the cable bodies. It also eliminates the need to carry a separate fixing block, making the installation process more convenient and improving the practicality of the device.

[0016] This utility model, by setting a fixing rod, a locking block, a plug-in groove, and a slot, allows the device to slide the fixing rod within the fixing sleeve, so that it can slide into the plug-in seat along the plug-in groove, and rotate 90 degrees inside the slot, so that the locking block can be locked into the slot, thereby fixing multiple left sleeves, making the device easy to assemble and disassemble, and improving the efficiency of the device. Attached Figure Description

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a high-strength flame-retardant cable;

[0018] Figure 2 A cross-sectional three-dimensional structural diagram showing the fit of the left and right sleeves;

[0019] Figure 3 for Figure 2 Enlarged view of point A;

[0020] Figure 4 A three-dimensional cross-sectional diagram showing the fit between the connector and the plug.

[0021] In the diagram: 1. Cable body; 101. Outer sheath; 102. Flame retardant layer; 103. Filler layer; 104. Inner sheath; 105. Copper core wire; 2. Left sleeve; 3. Slide; 4. Rotary seat; 5. Right sleeve; 6. Connecting seat; 7. Plug-in seat; 8. Fixing sleeve; 9. Fixing rod; 10. Locking block; 11. Slide groove; 12. Rotary groove; 13. Plug-in groove; 14. Locking groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figures 1-4This utility model provides a high-strength flame-retardant cable, including a cable body 1. A left sleeve 2 and a slide block 3 are fixedly connected to both ends of the outer side of the cable body 1, respectively. A rotating block 4 is slidably connected to the outer side of the slide block 3, and a right sleeve 5 is rotatably connected to the outer side of the rotating block 4. One of the left sleeves 2 on the outer side of the cable body 1 is threadedly connected to the adjacent right sleeve 5 on the outer side of the cable body 1. A connecting seat 6 and a plug-in seat 7 are fixedly connected to both sides of the left sleeve 2, respectively. The cable body 1 includes an outer sheath 101. A flame-retardant layer 102 is fixedly connected to the inner side of the outer sheath 101. A filling layer 103 is fixedly connected to the inner side of the flame-retardant layer 102. An inner sheath 104 is fixedly connected to the inner side of the filling layer 103. A copper core wire 105 is fixedly connected to the inner side of the inner sheath 104. A threaded sleeve is fixedly connected to the end of the right sleeve 5 away from the cable body 1. A threaded groove adapted to the threaded sleeve is opened inside the left sleeve 2. A sealing ring is fixedly connected to the inner side of the rotating base 4. A sealing gasket is fixedly connected to the contact surface between the rotating base 4 and the right sleeve 5.

[0025] The outer layer of the cable body 1 at both ends is peeled off, and the copper core wires 105 on both sides are wound and connected. Then, the sliding rotator 4 is slid so that the right sleeve 5 is close to the left sleeve 2. The right sleeve 5 is rotated and threadedly connected to the left sleeve 2 to complete the connection of the two ends of the cable.

[0026] The right sleeve 5 slides on the outside of the slide block 3, which allows for some space to be reserved at the connection point of the cable body 1, facilitating the connection of the two cable bodies 1. The rotating block 4 allows the right sleeve 5 to rotate to a certain extent, facilitating its screw connection with the left sleeve 2, greatly improving the flexibility and convenience of installation. With the addition of auxiliary components such as sealing rings and sealing gaskets, it effectively prevents external factors such as moisture and soil from corroding the connection point, thus ensuring the stable operation of the cable body 1 in harsh environments. Compared with traditional separate fixing blocks, this integrated connection method does not require additional fixing components, greatly simplifying the installation process and reducing installation time and cost. This not only improves the practicality of the device, but also makes the connection and laying of cables more efficient and convenient.

[0027] Please see Figures 1-4One of the plug-in seats 7 on the outer side of the left sleeve 2 is slidably connected to the inside of the connecting seat 6 on the outer side of the adjacent left sleeve 2. A fixing sleeve 8 is fixedly connected to the top of the connecting seat 6. A fixing rod 9 is slidably connected inside the fixing sleeve 8. A locking block 10 is fixedly connected to both sides of the bottom end of the fixing rod 9. A sliding groove 11 adapted to the locking block 10 is opened on both sides of the fixing sleeve 8. A rotating groove 12 for the locking block 10 to rotate is opened on both sides of the top end of the sliding groove 11. The plug-in seat 7 has a groove adapted to the fixing rod 9 and the locking block. The insertion slot 13 of the 10 is provided with slots 14 on both sides of the bottom end of the insertion slot 13 inside the insertion base 7 for rotating the locking block 10. The insertion base 7 includes an outer insertion block. The connecting base 6 has an insertion hole adapted to the insertion block inside. The insertion slot 13 is located directly below the slide groove 11. The connecting base 6 has a connecting groove for connecting the insertion slot 13 and the slide groove 11 inside. The top of the fixing rod 9 is fixedly connected to a rotating block. The rotating groove 12 is located directly above the slot 14 and has the same shape.

[0028] Insert the plug 7 into the connector 6, rotate the fixing rod 9 90 degrees to disengage the locking block 10 from the rotating groove 12, slide the fixing rod 9 downwards to slide it into the rotating groove 12, and then rotate it 90 degrees to lock the locking block 10 into the locking groove 14, completing the connection of the two left sleeves 2. Then connect all the left sleeves 2 in sequence, bury the connected cable in the working area, and provide protection through the outer sheath 101, the flame retardant layer 102 to prevent the spread of fire, the filling layer 103 to provide structural support, and the inner sheath 104 to protect the copper core wire 105, which transmits current.

[0029] By rotating 90 degrees, the locking block 10 is cleverly guided into the slot 14, achieving a secure connection between the left sleeves 2. This design not only ensures the stability of the connection but also increases the locking force of the connection through rotation, preventing the connection from loosening due to external forces. Compared with traditional fixing methods, users do not need to use complicated tools or perform cumbersome operations. They can simply slide and rotate the fixing rod 9 to complete the connection or disassembly. This not only saves time but also reduces the difficulty of installation and maintenance, making the cable connection work more efficient and convenient.

[0030] The working principle and usage process of this utility model are as follows: The outer layer of the cable body 1 at both ends is peeled off, and the copper core wires 105 on both sides are wound and connected. Then, the sliding rotating seat 4 is slid so that the right sleeve 5 is close to the left sleeve 2. The right sleeve 5 is rotated and threadedly connected to the left sleeve 2, completing the connection of the two cables. The plug seat 7 is inserted into the connecting seat 6, and the fixing rod 9 is rotated 90 degrees so that the locking block 10 disengages from the rotating groove 12. The fixing rod 9 is slid downwards so that it slides into the rotating groove 12. Then, it is rotated 90 degrees so that the locking block 10 is engaged in the locking groove 14, completing the connection of the two left sleeves 2. All left sleeves 2 are then connected in sequence. The connected cable is buried in the working area. The outer sheath 101 provides protection, the flame-retardant layer 102 prevents the spread of fire, the filling layer 103 provides structural support, and the inner sheath 104 protects the copper core wires 105, which transmit current.

[0031] The cable body 1 described above is prior art disclosed in this utility model and will not be described in detail here.

[0032] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength flame-retardant cable, comprising a cable body (1), characterized in that, The cable body (1) has a left sleeve (2) and a slide (3) fixedly connected to its two outer ends respectively. A rotating seat (4) is slidably connected to the outer side of the slide (3). A right sleeve (5) is rotatably connected to the outer side of the rotating seat (4). The left sleeve (2) on the outer side of one cable body (1) is threadedly connected to the right sleeve (5) on the outer side of the adjacent cable body (1). A connecting seat (6) and a plug-in seat (7) are fixedly connected to both sides of the left sleeve (2). The plug-in seat (7) on the outer side of one left sleeve (2) is slidably connected to the inside of the connecting seat (6) on the outer side of the adjacent left sleeve (2). The top of the connecting seat (6) is fixedly connected to a... A fixed sleeve (8) is slidably connected to a fixed rod (9) inside the fixed sleeve (8). Both sides of the bottom end of the fixed rod (9) are fixedly connected to a locking block (10). Both sides of the fixed sleeve (8) are provided with a sliding groove (11) adapted to the locking block (10). Both sides of the top end of the sliding groove (11) are provided with a rotating groove (12) for the locking block (10) to rotate. The plug-in seat (7) is provided with a plug-in groove (13) adapted to the fixed rod (9) and the locking block (10) inside. Both sides of the bottom end of the plug-in groove (13) inside the plug-in seat (7) are provided with a locking groove (14) for the locking block (10) to rotate.

2. The high-strength flame-retardant cable according to claim 1, characterized in that, The cable body (1) includes an outer sheath (101), a flame-retardant layer (102) is fixedly connected to the inner side of the outer sheath (101), a filling layer (103) is fixedly connected to the inner side of the flame-retardant layer (102), an inner sheath (104) is fixedly connected to the inner side of the filling layer (103), and a copper core wire (105) is fixedly connected to the inner side of the inner sheath (104).

3. A high-strength flame-retardant cable according to claim 1, characterized in that, The right sleeve (5) is fixedly connected to a threaded sleeve at one end away from the cable body (1), and the left sleeve (2) has a threaded groove adapted to the threaded sleeve inside.

4. A high-strength flame-retardant cable according to claim 1, characterized in that, A sealing ring is fixedly connected to the inner side of the rotating base (4), and a sealing gasket is fixedly connected to the contact surface between the rotating base (4) and the right sleeve (5).

5. A high-strength flame-retardant cable according to claim 1, characterized in that, The connector (7) includes an outer connector block, and the connector (6) has a connector hole adapted to the connector block inside.

6. A high-strength flame-retardant cable according to claim 1, characterized in that, The plug slot (13) is located directly below the slide groove (11), and the connecting seat (6) has a connecting groove inside for connecting the plug slot (13) and the slide groove (11).

7. A high-strength flame-retardant cable according to claim 1, characterized in that, The top of the fixing rod (9) is fixedly connected to a rotating block, and the rotating groove (12) is located directly above the slot (14) and has the same shape.

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