Connecting assembly of fireproof cable protection pipe

Abstract

The utility model relates to a connecting assembly of a fireproof cable protection pipe, which comprises cables, a connecting pipeline and an extrusion fixing assembly, the extrusion fixing assembly is arranged in the connecting pipeline, and the two cables are respectively inserted and mounted at two ends of the extrusion fixing assembly; two clamp fixing assemblies are symmetrically arranged on the outer side of the connecting pipeline. In the specific use process, the ends, close to each other, of the two cables are connected and installed on the inner sides of the two ends of the connecting pipeline through the extrusion fixing assemblies, the two cables are connected and fixed into the connecting pipeline through the extrusion fixing assemblies to serve as a first layer of fixed connection, and through the extrusion reinforcing effect, the distance between the cable clamp and the cables is reduced, and the pressure intensity is increased; and the two groups of clamp fixing assemblies with simple structures are arranged on the outer surface of the connecting pipeline, so that not only is the connection between the two ends of the connecting pipeline and the cable enhanced, but also the installation and the disassembly are very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connection, in particular to a connection component of a fireproof cable protection pipe. Background Art

[0002] A cable refers to a conductor consisting of two or more wires, while a fire-resistant cable refers to a cable with a certain degree of fire resistance. This type of cable has a thicker outer sheath and more fillers, which makes the fire-resistant cable generally thicker.

[0003] When connecting fire-resistant cables, the outer layer of the cable end needs to be peeled off to expose the wire core, and then the two wire cores are connected together and protected by fire-resistant tape and fire-resistant rubber sleeve. However, this connection method has poor firmness and low stability. Utility Model Content

[0004] The utility model aims to provide a connection component for a fireproof cable protection pipe with higher connection stability.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A connection component of a fireproof cable protection tube comprises a cable, a connection pipe and an extrusion fixing component. The extrusion fixing component is arranged inside the connection pipe. Two cables are respectively plugged and installed at both ends of the extrusion fixing component. The extrusion fixing component is used for the first layer of connection and fixation of the two cables. Two clamp fixing components are symmetrically arranged on the outside of the connection pipe. The clamp fixing component is used for the second layer of connection and fixation.

[0007] It can be seen that in actual use, the ends of the two cables that are close to each other are connected and installed on the inner sides of the two ends of the connecting pipe through the extrusion fixing assembly. The two cables are connected and fixed in the connecting pipe by using the extrusion fixing assembly as the first layer of fixed connection. Through the effect of extrusion reinforcement, the distance between the wire clamp and the cable is reduced, and the pressure is increased, so that the connection between the extrusion fixing assembly and the cable is more firm and stable. By arranging two groups of simple clamp fixing assemblies on the outer surface of the connecting pipe, not only the connection between the two ends of the connecting pipe and the cable is strengthened, but also it is very convenient during installation and disassembly.

[0008] Furthermore, the extrusion fixing assembly includes a rubber sleeve, a wire clamp, and a clamping screw. Two groups of penetrating mounting holes are symmetrically opened on the outer surface of the connecting pipe; wire clamps are installed at both ends of the rubber sleeve, and the clamping screw penetrates the mounting holes and extends into the interior of the connecting pipe. The mounting hole is located at the inner end of the connected pipe and contacts the outer surface of the wire clamp.

[0009] Install the connecting pipe sleeve on the outer surface of the wire clamp and the rubber sleeve, install the two cables in the two wire clamps respectively, connect the ends of the cables to the rubber sleeve through the wire clamps, and finally install the clamping screw in the installation hole and tighten it downward until the bottom of the installation hole squeezes the wire clamp and the cable to fit tightly, so that the connection between the two cables is tighter, completing the first layer of fixed connection of the two cables. By squeezing the wire clamp with the clamping screw, the connection between the wire clamp and the cable can be made tighter, preventing the two cables from loosening in the rubber sleeve, making the connection tighter.

[0010] Furthermore, the clamp fixing assembly includes an arc clamp, a screw and a connecting block, and a threaded hole is opened on the screw; two symmetrical upper and lower groups of arc clamps are arranged on the outer surface end of the connecting pipe, and two connecting blocks are arranged on both sides of the arc clamp; the screw thread is installed inside the threaded hole.

[0011] After the two cables are fixedly installed in the connecting pipe, the outer ends of the connecting pipe are clamped and connected by using two upper and lower arc clamps to achieve the second-layer connection and fixation of the cables and the connecting pipe, making the connection between the two cables more stable. By arranging two groups of simple clamp fixing components on the outer surface of the connecting pipe, not only the connection between the two ends of the connecting pipe and the cables is strengthened, but also it is very convenient during installation and disassembly.

[0012] Furthermore, the wire clamp is a C-shaped plate structure, and claw teeth are arranged on the inner wall of the end of the wire clamp.

[0013] The C-shaped wire clamp can adapt to different types of cables and is inclusive. It can fully squeeze and connect the cables of different types through extrusion and deformation. The claws set on the inner wall of the end of the wire clamp can increase the friction, making the connection between the wire clamp and the cable more stable.

[0014] Furthermore, a rib is installed inside the arc clamp, and the rib is a circular arc plate-shaped protrusion, and the size of the rib is adapted to the size of the inner side of the arc clamp.

[0015] The ribs reinforce the arc clamps, while reducing the contact area with the connecting pipes, increasing the pressure, compacting and fixing the connecting pipes and cables, and improving the firmness and stability of the connection.

[0016] Furthermore, an arc-shaped connection sealing gasket is installed on the contact surface corresponding to the connection pipe and the wire clamp.

[0017] The arc-shaped connection sealing gasket can not only increase friction and improve sealing, but also act as a buffer to prevent wear caused by excessive extrusion force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the regional structure of part of the utility model.

[0020] Figure 3 It is a schematic diagram of the regional structure of the arc-shaped clamp in the utility model.

[0021] In the figure: 1, cable; 2, connecting pipe; 3, extrusion fixing assembly; 31, rubber sleeve; 32, wire clamp; 33, mounting hole; 34, clamping screw; 4, clamp fixing assembly; 41, arc clamp; 42, screw; 43, connecting block; 401, threaded hole; 5, claw teeth; 6, rib plate. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, a connection component of a fireproof cable protection tube includes a cable 1, a connecting pipe 2 and an extrusion fixing component 3. The extrusion fixing component 3 is arranged inside the connecting pipe 2, and two cables 1 are respectively plugged and installed at both ends of the extrusion fixing component 3. The extrusion fixing component 3 is used for the first layer of connection and fixation of the two cables 1; two clamp fixing components 4 are symmetrically arranged on the outside of the connecting pipe 2, and the clamp fixing component 4 is used for the second layer of connection and fixation.

[0024] In specific use, the ends of the two cables 1 that are close to each other are connected and installed on the inner sides of the two ends of the connecting pipe 2 through the extrusion fixing component 3. The two cables 1 are connected and fixed in the connecting pipe 2 by using the extrusion fixing component 3 as the first layer of fixed connection. Through the effect of extrusion reinforcement, the distance between the wire clamp 32 and the cable 1 is reduced, and the pressure is increased, so that the connection between the extrusion fixing component 3 and the cable 1 is more firm and stable. Then, two groups of simple-structured clamp fixing components 4 are arranged on the outer surface of the connecting pipe 2, which not only strengthens the connection between the two ends of the connecting pipe 2 and the cable 1, but also is very convenient during installation and disassembly.

[0025] Specifically, the extrusion fixing assembly 3 includes a rubber sleeve 31, a wire clamp 32, and a clamping screw 34. Two groups of penetrating mounting holes 33 are symmetrically opened on the outer surface of the connecting pipe 2; wire clamps 32 are installed at both ends of the rubber sleeve 31, and the clamping screw 34 penetrates the mounting holes 33 and extends to the inside of the connecting pipe 2. The mounting hole 33 is located at the inner end of the connected pipe 2 and contacts the outer surface of the wire clamp 32. The wire clamp 32 and the rubber sleeve 31 are installed as an integrated whole. The diameter of the rubber sleeve 31 is smaller than the diameter of the mounting hole 33. When connecting two cables 1, the connecting pipe 2 is pre-installed on the outer surfaces of the wire clamp 32 and the rubber sleeve 31. The two cables 1 are respectively installed in the two wire clamps 32, and the ends of the cables 1 are installed in the rubber sleeve 31 through the wire clamps 32. Finally, the clamping screw 34 is installed in the mounting hole 33 and tightened downward until the bottom end of the mounting hole 33 squeezes the wire clamp 32 and the cable 1 to fit tightly, completing the first layer of fixed connection of the two cables 1. By using the clamping screw 34 to squeeze the wire clamp 32, the connection between the wire clamp 32 and the cable 1 can be made tighter, preventing the two cables 1 from loosening in the rubber sleeve 31, making the connection tighter.

[0026] Specifically, the clamp fixing assembly 4 includes an arc clamp 41, a screw 42 and a connecting block 43, and a threaded hole 401 is formed on the screw 42; two symmetrical upper and lower sets of arc clamps 41 are arranged on the outer surface end of the connecting pipe 2, and two connecting blocks 43 are arranged on both sides of the arc clamp 41; the screw 42 is threadedly installed inside the threaded hole 401. After the two cables 1 are fixedly installed in the connecting pipe 2, the outer ends of the connecting pipe 2 are clamped and connected by using the upper and lower arc clamps 41, and the connection of the two arc clamps 41 is completed by threading the screw 42 in the threaded holes 401 on the connecting blocks 43 on both sides of the arc clamp 41. The two arc clamps 41 are formed into a ring and installed at the two ends of the connecting pipe 2, achieving the second layer of connection and fixing, making the connection between the two cables 1 more stable.

[0027] Specifically, the wire clamp 32 is a C-shaped plate structure, and claw teeth 5 are arranged on the inner wall of the end of the wire clamp 32. The C-shaped wire clamp 32 can adapt to different types of cables 1, is inclusive, and can fully squeeze and connect the cables 1 by squeezing and deforming in the face of different types of cables 1. The claw teeth 5 arranged on the inner wall of the end of the wire clamp 32 play a role of grasping the cable 1 at the end of the wire clamp 32 after the cable 1 is inserted into the wire clamp 32, increase the friction force, and make the connection between the wire clamp 32 and the cable 1 more stable.

[0028] Specifically, a rib plate 6 is installed inside the arc clamp 41. The rib plate 6 is a circular arc plate-shaped protrusion, and the size of the rib plate 6 is adapted to the size of the inner side of the arc clamp 41. The rib plate 6 plays a role in reinforcing the arc clamp 41, while reducing the contact area with the connecting pipe 2, increasing the pressure, and pressing and fixing the connecting pipe 2 and the cable 1, thereby improving the connection firmness and stability.

[0029] Specifically, an arc-shaped connection sealing gasket is installed on the contact surface corresponding to the connection pipe 2 and the wire clamp 32. The arc-shaped connection sealing gasket can not only increase the friction force and improve the sealing performance, but also play a buffering role to prevent the situation of excessive extrusion force causing wear.

[0030] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A fireproof cable protection pipe connection assembly, comprising a cable (1), a connection pipe (2) and an extrusion fixing assembly (3), characterized in that: The extrusion fixing component (3) is arranged inside the connecting pipe (2), and the two cables (1) are respectively plugged and installed at the two ends of the extrusion fixing component (3), and the extrusion fixing component (3) is used for the first layer connection and fixing of the two cables (1); Two clamp fixing assemblies (4) are symmetrically arranged on the outer side of the connecting pipe (2), and the clamp fixing assemblies (4) are used for second-level connection and fixing.

2. A fireproof cable protection tube connection assembly according to claim 1, characterized in that: The extrusion fixing assembly (3) comprises a rubber sleeve (31), a wire clamp (32), and a clamping screw (34); and the outer surface of the connecting pipe (2) is symmetrically provided with two groups of penetrating mounting holes (33); The wire clamps (32) are installed at both ends of the rubber sleeve (31), the clamping screw (34) passes through the installation hole (33) and extends into the interior of the connecting pipe (2), and the installation hole (33) is located at the inner end of the connected pipe (2) and contacts the outer surface of the wire clamp (32).

3. A fireproof cable protection tube connection assembly according to claim 2, characterized in that: The clamp fixing assembly (4) comprises an arc clamp (41), a screw rod (42) and a connecting block (43), wherein a threaded hole (401) is formed on the screw rod (42); Two symmetrical upper and lower groups of arc-shaped clamps (41) are provided on the outer surface end of the connecting pipe (2), and two connecting blocks (43) are correspondingly provided on both sides of the arc-shaped clamp (41); The screw rod (42) is threadedly mounted inside the threaded hole (401).

4. A fireproof cable protection tube connection assembly according to claim 3, characterized in that: The wire clamp (32) is a C-shaped plate structure, and claw teeth (5) are provided on the inner wall of the end of the wire clamp (32).

5. A fireproof cable protection tube connection assembly according to claim 4, characterized in that: A rib plate (6) is installed inside the arc-shaped clamp (41), and the rib plate (6) is a circular arc plate-shaped protrusion. The size of the rib plate (6) is adapted to the size of the inner side of the arc-shaped clamp (41).

6. A fireproof cable protection tube connection assembly according to claim 5, characterized in that: A connection sealing gasket is installed on the contact surface corresponding to the connection pipe (2) and the wire clamp (32).

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