Flame retardant electrical bushing

Abstract

The utility model provides a kind of flame-retardant electrician bushing, belong to bushing technical field, including pipeline bushing body and external bushing, pipeline bushing body is located in external bushing, external bushing is equipped with multiple groups of reinforcing column, external bushing is equipped with fixing frame, fixing frame both ends are respectively equipped with the flame-retardant component for changing combustion propagation caliber, multiple groups of flame-retardant component all include first flame-retardant sleeve ring and second flame-retardant sleeve ring and third flame-retardant sleeve ring, multiple groups of third flame-retardant sleeve ring are equipped with multiple groups of flame-retardant bearing plate, pipeline bushing body is clamped and set on third flame-retardant sleeve ring, pipeline bushing body is equipped with insulating bushing, external bushing one end is provided with bushing connector. The device is equipped with multiple groups of flame-retardant components, and the flame-retardant caliber of first flame-retardant sleeve ring, second flame-retardant sleeve ring and third flame-retardant sleeve ring is sequentially increased from inside to outside, so that the user can form a staged flame-retardant structure using different caliber flame-retardant sleeve rings, and the flame-retardant effect of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sleeve technology, and more specifically, it relates to a flame-retardant electrical sleeve. Background Technology

[0002] In the field of electrical wiring, electrical conduit is often used to protect and lay wires and cables. In various construction projects, industrial facilities, and home renovations, in order to ensure the safe operation of wires and cables and avoid damage to the lines due to accidents such as fires, construction workers often choose electrical conduit with certain flame-retardant properties.

[0003] However, traditional devices lack flame-retardant properties, meaning that in actual use, if a fire breaks out in the surrounding environment, the flames can spread along the inside of the electrical conduit. The high temperatures of combustion can damage the wires and cables, easily causing short circuits.

[0004] Not only will it affect the stability of the power supply, causing electrical equipment to malfunction, but it will also cause a wider range of fire hazards due to short circuits, increasing the difficulty of fire fighting and posing a serious threat to people's lives and property. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a flame-retardant electrical conduit to solve the technical problem that traditional devices in the prior art do not have flame-retardant functions.

[0006] The purpose and effect of this flame-retardant electrical conduit are achieved by the following specific technical means:

[0007] A flame-retardant electrical conduit includes a conduit body and an outer sleeve. The conduit body is located inside the outer sleeve. The outer sleeve has multiple sets of reinforcing columns and a fixing frame inside. Each end of the fixing frame has a flame-retardant component for changing the combustion propagation diameter. Each set of flame-retardant components includes a first flame-retardant ring, a second flame-retardant ring, and a third flame-retardant ring. Multiple sets of flame-retardant bearing plates are provided between the sets of third flame-retardant rings. The conduit body is snapped onto the third flame-retardant ring. An insulating sleeve is fitted onto the conduit body. One end of the outer sleeve has a sleeve connector.

[0008] According to a preferred embodiment, multiple sets of first flame-retardant sleeves, multiple sets of second flame-retardant sleeves, multiple sets of third flame-retardant sleeves, and multiple sets of flame-retardant support plates are all connected by multiple sets of bolts. Each set of first flame-retardant sleeves, multiple sets of second flame-retardant sleeves, multiple sets of third flame-retardant sleeves, and multiple sets of flame-retardant support plates is provided with a placement groove, and each set of placement grooves is provided with a flame-retardant rod.

[0009] According to a preferred embodiment, the flame-retardant diameters of the multiple sets of first flame-retardant rings, multiple sets of second flame-retardant rings, and multiple sets of third flame-retardant rings increase sequentially from the inside out, and multiple sets of through holes are provided on the multiple sets of third flame-retardant rings and multiple sets of second flame-retardant rings.

[0010] According to a preferred embodiment, the insulating sleeve has multiple sets of heat dissipation holes, the outer sleeve has multiple sets of arc grooves, the multiple sets of reinforcing columns are all located in the arc grooves, and one end of the fixing frame is connected to the outer sleeve.

[0011] According to a preferred embodiment, one end of the external sleeve is connected to the sleeve joint by a thread, and the sleeve joint has multiple sets of positioning grooves, each set of positioning grooves is provided with a fastening bolt, and the multiple sets of positioning grooves and the multiple sets of fastening bolts are equidistantly distributed along the circular surface of the sleeve joint.

[0012] According to a preferred embodiment, multiple sets of the flame-retardant bearing plates are arranged at equal intervals along the circular surface of the fixing frame, and the insulating sleeve is made of polyvinyl chloride.

[0013] According to a preferred embodiment, a sealing ring is provided at the connection between the sleeve joint and the external sleeve, and an anti-slip grip sleeve is fitted on the external sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This device incorporates multiple sets of flame-retardant components, with the flame-retardant diameters of the first, second, and third flame-retardant rings increasing sequentially from the inside out. This allows users to create a graded flame-retardant structure using rings of different diameters, enhancing the device's flame-retardant effect. In the event of a fire hazard, users can utilize this graded flame-retardant structure to alter the combustion propagation path, delaying the spread of fire within the pipe. This enhances the reliability of ensuring electrical circuit safety and improves the device's ability to prevent fire spread.

[0016] 2. When using this device, the user can enhance the structural strength of the outer sleeve through the cooperation of the reinforcing columns and arc grooves, so that the user does not have to worry about the sleeve being easily damaged by external forces during construction or use, thus improving the durability of the device. Furthermore, by installing a sealing ring at the connection between the sleeve joint and the outer sleeve, the device can prevent the ingress of moisture, dust, and other impurities, providing the user with a clean and dry internal environment, ensuring the normal operation of the wires and cables, and improving the protective performance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a front view of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 11. Pipeline sleeve body; 12. External sleeve; 13. Reinforcing column; 14. Fixing bracket; 15. First flame-retardant sleeve; 16. Second flame-retardant sleeve; 17. Third flame-retardant sleeve; 18. Flame-retardant bearing plate; 19. Insulating sleeve; 21. Sleeve joint; 22. Flame-retardant rod; 23. Sealing ring; 24. Anti-slip grip. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example:

[0024] like Figures 1 to 4 As shown, this utility model provides a flame-retardant electrical conduit, including a conduit body 11 and an outer conduit 12. The conduit body 11 is located inside the outer conduit 12. The outer conduit 12 is provided with multiple sets of reinforcing columns 13. A fixing frame 14 is provided inside the outer conduit 12. Flame-retardant components for changing the combustion propagation diameter are provided at both ends of the fixing frame 14. Each set of flame-retardant components includes a first flame-retardant collar 15, a second flame-retardant collar 16, and a third flame-retardant collar 17. Multiple sets of flame-retardant bearing plates 18 are provided between the multiple sets of third flame-retardant collars 17. The conduit body 11 is snapped onto the third flame-retardant collar 17. An insulating sleeve 19 is fitted on the conduit body 11. A sleeve connector 21 is provided at one end of the outer conduit 12.

[0025] Specifically, the conduit sleeve body 11 provides a passage for internal wires, while the outer sleeve 12 serves as an external protective structure to isolate the external environment. The reinforcing column 13 enhances the structural strength of the outer sleeve 12 and prevents deformation. The fixing bracket 14 provides installation support for the flame-retardant components, ensuring their stable position. The flame-retardant components, through multiple sets of rings and cooperation with the bearing plate, change the combustion propagation path and diameter, blocking the spread of fire. The third flame-retardant ring 17 positions the conduit sleeve body 11, and the insulating sleeve 19 wraps around the conduit sleeve, improving the overall insulation performance. The sleeve connector 21 is used to connect multiple sleeve sections, extending the usable length.

[0026] Multiple sets of first flame-retardant sleeves 15, multiple sets of second flame-retardant sleeves 16, multiple sets of third flame-retardant sleeves 17, and multiple sets of flame-retardant support plates 18 are all connected by multiple sets of bolts. Multiple sets of first flame-retardant sleeves 15, multiple sets of second flame-retardant sleeves 16, multiple sets of third flame-retardant sleeves 17, and multiple sets of flame-retardant support plates 18 are all provided with placement grooves, and flame-retardant rods 22 are provided on multiple placement grooves.

[0027] Specifically, the bolt connection secures each flame-retardant ring to the bearing plate as a whole, ensuring the stability of the flame-retardant component structure and preventing it from loosening under combustion or external force. The placement groove provides an installation position for the flame-retardant rod 22. The flame-retardant rod 22 (such as a ceramic rod containing flame retardant or an intumescent flame-retardant material) can release flame-retardant substances or expand to seal gaps at high temperatures, enhancing the fire resistance of the flame-retardant component and forming multiple flame-retardant barriers in conjunction with the rings.

[0028] The flame-retardant diameters of the multiple sets of first flame-retardant rings 15, multiple sets of second flame-retardant rings 16, and multiple sets of third flame-retardant rings 17 increase sequentially from the inside out, and multiple sets of through holes are provided on the multiple sets of third flame-retardant rings 17 and multiple sets of second flame-retardant rings 16.

[0029] Specifically, the flame-retardant diameter increases from the inside out, which can slow down the spread of the burning flame and reduce the concentrated impact of the flame by buffering the increased diameter; the through holes facilitate heat dissipation and avoid local high temperature accumulation, and allow the flame-retardant substances released by the flame-retardant rod 22 to diffuse to the gaps between the rings through the through holes, thereby enhancing the overall flame-retardant coverage.

[0030] The insulating sleeve 19 has multiple sets of heat dissipation holes, the outer sleeve 12 has multiple sets of arc grooves, and multiple sets of reinforcing columns 13 are located in the arc grooves. One end of the fixing bracket 14 is connected to the outer sleeve 12.

[0031] Specifically, the insulating sleeve 19 is made of polyvinyl chloride, which has excellent insulation and corrosion resistance, protecting the wires inside the conduit from the risk of short circuits; the heat dissipation holes accelerate the heat exchange between the insulating sleeve 19 and the conduit, preventing the accumulation of heat generated by the wires during operation; the arc groove provides installation space for the reinforcing column 13, which enhances the impact resistance and deformation resistance of the outer sleeve 12; and the connection between the fixing bracket 14 and the outer sleeve 12 further strengthens the internal support, ensuring the overall structural rigidity of the sleeve.

[0032] One end of the external sleeve 12 is connected to the sleeve joint 21 by a thread. The sleeve joint 21 has multiple sets of positioning grooves, and each set of positioning grooves is equipped with a fastening bolt. The multiple sets of positioning grooves and the multiple sets of fastening bolts are equidistantly distributed along the circular surface of the sleeve joint 21.

[0033] Specifically, the threaded connection makes it easy to disassemble and install the external sleeve 12 and the sleeve connector 21, adapting to the connection needs of pipelines of different lengths; the positioning groove and the fastening bolt are evenly distributed, and the connection between the sleeve connector 21 and the external sleeve 12 can be further fixed by tightening the bolts, preventing loosening due to vibration during long-term use, and ensuring the connection sealing and stability.

[0034] Multiple sets of flame-retardant bearing plates 18 are arranged at equal intervals along the circular surface of the fixing frame 14, and the insulating sleeve 19 is made of polyvinyl chloride.

[0035] Specifically, the flame-retardant bearing plates 18 are arranged at equal intervals to ensure that the flame-retardant components are subjected to uniform force, avoiding excessive local stress that could lead to structural deformation, while ensuring that the flame propagation path is uniformly blocked; the polyvinyl chloride insulating sleeve 19 is resistant to high temperature and has stable insulation performance, and can withstand the heat generated by the operation of the wires for a long time, ensuring the insulation safety of the sleeve.

[0036] A sealing ring 23 is provided at the connection between the sleeve joint 21 and the external sleeve 12, and an anti-slip grip sleeve 24 is fitted on the external sleeve 12.

[0037] Specifically, the sealing ring 23 fills the connection gap between the sleeve joint 21 and the outer sleeve 12 to prevent moisture, dust and other impurities from entering the sleeve and protect the wire from corrosion; the anti-slip grip 24 increases the friction when the hand holds the outer sleeve 12, making it easier to operate stably when installing, disassembling or moving the sleeve and reducing the risk of slipping.

[0038] The specific usage and function of this embodiment are as follows:

[0039] When using it, first prepare for the assembly of the sleeve: put the insulating sleeve 19 on the outside of the pipeline sleeve body 11, and ensure that the heat dissipation holes on the insulating sleeve 19 are not blocked. Then, insert the pipeline sleeve body 11 with the insulating sleeve 19 into the third flame-retardant collar 17 to make the pipeline sleeve stably limited.

[0040] Assemble the flame-retardant components: Connect the first flame-retardant collar 15, the second flame-retardant collar 16, and the third flame-retardant collar 17 to the flame-retardant support plate 18 in sequence with bolts, ensuring that the placement slots of each collar are aligned, and embed flame-retardant rods 22 (such as inflatable flame-retardant material rods) into the placement slots; fix the assembled flame-retardant components to both ends of the fixing frame 14, so that the flame-retardant support plate 18 is arranged equidistantly along the circular surface of the fixing frame 14 to form a flame-retardant barrier surrounding the pipeline sleeve.

[0041] Assemble the external sleeve: Place the fixing bracket 14 and the flame-retardant component into the external sleeve 12 as a whole, so that one end of the fixing bracket 14 is connected and fixed to the inner wall of the external sleeve 12; install the reinforcing column 13 in the arc groove of the external sleeve 12 to enhance the overall rigidity of the sleeve; connect one end of the external sleeve 12 to the sleeve connector 21 by thread, embed the sealing ring 23 at the connection, and then further fix it by the fastening bolt in the positioning groove to ensure that there is no gap in the connection.

[0042] Wiring and Use: Thread the wires through the conduit sleeve body 11 to complete the conduit layout; when handling or installing the sleeve, grip it using the anti-slip grip 24 on the outer sleeve 12 to prevent slippage. During use, regularly check the condition of the flame retardant rod 22, the sealing performance of the sealing ring 23, and the tightness of the bolts to ensure protective function.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A flame-retardant electrical conduit, comprising a conduit body (11) and an external conduit (12), characterized in that: The pipeline sleeve body (11) is located inside the external sleeve (12). The external sleeve (12) is provided with multiple sets of reinforcing columns (13). The external sleeve (12) is provided with a fixing frame (14). The fixing frame (14) is provided with flame-retardant components at both ends for changing the combustion propagation diameter. Each set of flame-retardant components includes a first flame-retardant ring (15), a second flame-retardant ring (16), and a third flame-retardant ring (17). Multiple sets of flame-retardant bearing plates (18) are provided between the multiple sets of third flame-retardant rings (17). The pipeline sleeve body (11) is clamped on the third flame-retardant ring (17). An insulating sleeve (19) is sleeved on the pipeline sleeve body (11). One end of the external sleeve (12) is provided with a sleeve joint (21).

2. The flame-retardant electrical conduit according to claim 1, characterized in that: Multiple sets of first flame-retardant sleeves (15), multiple sets of second flame-retardant sleeves (16), multiple sets of third flame-retardant sleeves (17), and multiple sets of flame-retardant support plates (18) are all connected by multiple sets of bolts. Multiple sets of first flame-retardant sleeves (15), multiple sets of second flame-retardant sleeves (16), multiple sets of third flame-retardant sleeves (17), and multiple sets of flame-retardant support plates (18) are all provided with placement grooves, and flame-retardant rods (22) are provided on multiple sets of placement grooves.

3. The flame-retardant electrical conduit according to claim 2, characterized in that: The flame-retardant diameter of the multiple sets of the first flame-retardant rings (15), the multiple sets of the second flame-retardant rings (16), and the multiple sets of the third flame-retardant rings (17) increases sequentially from the inside to the outside. Multiple sets of through holes are provided on the multiple sets of the third flame-retardant rings (17) and the multiple sets of the second flame-retardant rings (16).

4. The flame-retardant electrical conduit according to claim 1, characterized in that: The insulating sleeve (19) has multiple sets of heat dissipation holes, the external sleeve (12) has multiple sets of arc grooves, the multiple sets of reinforcing columns (13) are all located in the arc grooves, and one end of the fixing frame (14) is connected to the external sleeve (12).

5. A flame-retardant electrical conduit according to claim 4, characterized in that: One end of the external sleeve (12) is connected to the sleeve joint (21) by a thread. The sleeve joint (21) has multiple sets of positioning grooves, and each of the multiple sets of positioning grooves is provided with a fastening bolt. The multiple sets of positioning grooves and the multiple sets of fastening bolts are distributed at equal intervals along the circular surface of the sleeve joint (21).

6. The flame-retardant electrical conduit according to claim 5, characterized in that: Multiple sets of flame-retardant bearing plates (18) are arranged at equal intervals along the circular surface of the fixing frame (14), and the insulating sleeve (19) is made of polyvinyl chloride.

7. A flame-retardant electrical conduit according to claim 6, characterized in that: A sealing ring (23) is provided at the connection between the sleeve joint (21) and the external sleeve (12), and an anti-slip grip sleeve (24) is provided on the external sleeve (12).

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