Flexible fireproof bus duct
By introducing fixing and positioning components into the flexible fire-resistant busbar trunking, the problems of inconvenient snap-fit connection and unstable positioning are solved, realizing convenient snap-fit fixing and rapid positioning of the busbar trunking, thus improving ease of use and fire resistance performance.
Patent Information
- Application Number
- CN202520531706.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The existing flexible fire-resistant busbar trunking has a cumbersome snap-fit connection and fixation, which makes it inconvenient to use and makes it difficult to quickly position and fix the main body, thus affecting the performance.
The design incorporates fixing and positioning components, including limit components, fixing pins, return springs, and positioning blocks. Through the cooperation of slots, pin holes, and positioning holes, the design enables convenient fixing of the buckle and rapid positioning of the busbar.
It enables convenient disassembly and secure fixing of the buckle, and quick positioning and installation of the busbar trunking body, improving ease of use and fire resistance.
Smart Images

Figure CN223942370U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of busbar technology, specifically relating to a flexible fire-resistant busbar. Background Technology
[0002] With the rapid development of cities, high-rise buildings are becoming more and more common, and the electrical load of buildings is increasing dramatically. The original wires and cables, due to their small capacity, inconvenient branching, and difficulty in bundled management, have been gradually replaced by busbar trunking, which has a large capacity, convenient branching, and convenient bundled management. Busbar trunking is widely used in key projects such as power transmission trunk lines for fire-fighting equipment and trunk lines for fire emergency equipment.
[0003] Chinese Patent Application No. 202320675414.9 discloses a flexible fire-resistant busbar trunking, comprising a main body with a first buckle and a second buckle mounted on its top, mounted on the bottom of the main body; ball bearings, each mounted on the inner and outer sides of the bottom of the first buckle; grooves, each formed on the inner side of the top of the second buckle; conductors, each mounted on the left and right sides of the main body; flexible rubber covering the conductors; and fire-resistant filler installed inside the main body. Preferably, the main body further includes: horizontal covers, each mounted on the upper and lower ends of the main body. This invention overcomes the shortcomings of the prior art by setting the ball bearings on the inner and outer sides of the bottom of the first buckle to fit into the groove on the inner side of the top of the second buckle, enabling the main body to achieve waterproof and dustproof effects. A heat sink connected to one end of the main body can dissipate heat from the inside of the main body, thereby increasing the service life of the busbar trunking.
[0004] The aforementioned patent has the following drawbacks in use: the connection and fixation of the first and second buckles of the busbar trunking is troublesome, causing inconvenience in use; at the same time, the main body of the busbar trunking has the problem of movement, making it impossible to quickly position and fix it, which affects its use. Utility Model Content
[0005] To address the problems mentioned in the background section, this utility model provides a flexible fire-resistant busbar trunking system, characterized by convenient snap-fit fixing and disassembly, and easy positioning and installation.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible fire-resistant busbar trunking, including a second buckle, a busbar trunking body installed in the middle of the second buckle, slots on both sides of the upper end of the second buckle, pin holes on the sides of the slots, a first buckle snapped onto the upper part of the second buckle, blocks on both sides of the bottom of the first buckle, fixing components on the sides of the blocks and pin holes, heat sinks on both sides of the busbar trunking body, a plurality of flexible rubbers inside the busbar trunking body, a conductor in the middle of the flexible rubbers, a fire-resistant filler filling the gap between the flexible rubbers and the busbar trunking body, a plurality of positioning holes at the bottom of the busbar trunking body, a plurality of mounting grooves on the inner bottom surface of the second buckle, and a positioning component in the middle of the mounting groove.
[0007] Preferably, the fixing component includes a limiting component, a fixing pin, and a return spring, wherein the return spring is provided in the side receiving groove of the card block, the side of the return spring is connected to the fixing pin, and the limiting component is provided on the side of the pin hole.
[0008] Preferably, the limiting assembly includes a sleeve, a pin, and an adjusting disc, wherein the sleeve is internally threadedly connected to the pin, and the adjusting disc is connected to the side of the pin.
[0009] Preferably, a limiting ring is provided on the surface of the pin located inside the sleeve.
[0010] Preferably, the positioning component includes a positioning block and a second reset spring, wherein the second reset spring is disposed in the middle of the mounting groove, and the positioning block is disposed at the upper end of the second reset spring.
[0011] Preferably, the positioning block is always inserted into the positioning hole under the elastic force of the second reset spring.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model is equipped with a fixing component. Pressing the fixing pin compresses the return spring, causing the fixing pin to retract into the locking block. The locking block then engages with the locking groove. Under the elastic force of the return spring, the fixing pin is inserted into the pin hole. Turning the adjusting disc makes the side of the pin rod tightly adhere to the fixing pin. Through protective limiting, the fixing pin is prevented from detaching from the pin hole, ensuring that the first and second latches are securely fixed. Turning the adjusting disc inserts the pin rod into the pin hole, and the fixing pin is pushed into the storage groove of the locking block by the pin rod. The first and second latches separate, making it convenient for single-person operation to open and easy to use.
[0014] 2. This utility model is equipped with positioning holes and positioning components. The positioning block is inserted into the positioning hole, which enables the main body of the busbar trunking to be quickly positioned and installed. At the same time, the positioning block plays a limiting role to prevent the main body of the busbar trunking from moving, making positioning and installation convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the fixing component structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the positioning component structure of this utility model;
[0019] In the diagram: 1. First buckle; 2. Busbar trunking body; 3. Buckle block; 4. Flexible rubber; 5. Conductor; 6. Pin hole; 7. Slot; 8. Refractory filler; 9. Fixing component; 91. Limiting component; 911. Sleeve; 912. Pin rod; 913. Limiting ring; 914. Adjusting disc; 92. Fixing pin; 93. Return spring one; 10. Heat sink; 11. Second buckle; 12. Positioning hole; 13. Positioning component; 131. Positioning block; 132. Return spring two; 14. Mounting slot. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] Please see Figure 1-4 The present invention provides the following technical solution: a flexible fire-resistant busbar trunking, including a second buckle 11, a busbar trunking body 2 installed in the middle of the second buckle 11, a buckle groove 7 provided on both sides of the upper end of the second buckle 11, a pin hole 6 provided on the side of the buckle groove 7, a first buckle 1 snapped on the upper part of the second buckle 11, a buckle block 3 provided on both sides of the bottom of the first buckle 1, a fixing component 9 provided on the side of the buckle block 3 and the pin hole 6, heat sinks 10 provided on both sides of the busbar trunking body 2, a plurality of flexible rubbers 4 provided inside the busbar trunking body 2, a conductor 5 provided in the middle of the flexible rubbers 4, a fire-resistant filler 8 filled in the gap between the flexible rubbers 4 and the busbar trunking body 2, a plurality of positioning holes 12 provided at the bottom of the busbar trunking body 2, a plurality of mounting grooves 14 provided on the inner bottom surface of the second buckle 11, and a positioning component 13 provided in the middle of the mounting groove 14.
[0023] Specifically, the fixing component 9 includes a limiting component 91, a fixing pin 92, and a return spring 93. The return spring 93 is provided in the side storage groove of the card block 3, the side of the return spring 93 is connected to the fixing pin 92, and the limiting component 91 is provided on the side of the pin hole 6.
[0024] By adopting the above technical solution, pressing the fixing pin 92 compresses the return spring 93, causing the fixing pin 92 to retract into the locking block 3. The locking block 3 then engages with the locking groove 7. Under the elastic force of the return spring 93, the fixing pin 92 is inserted into the pin hole 6. The limiting component 91 protects and limits the fixing pin 92, preventing it from disengaging from the pin hole 6 and ensuring that the first buckle 1 and the second buckle 11 are securely fixed.
[0025] Specifically, the limiting component 91 includes a sleeve 911, a pin 912, and an adjusting plate 914. The sleeve 911 is internally threaded to the pin 912, and the adjusting plate 914 is connected to the side of the pin 912.
[0026] By adopting the above technical solution, the adjustment disc 914 is turned so that the side of the pin 912 is tightly attached to the fixing pin 92. Through the protective limit, the fixing pin 92 is prevented from falling out of the pin hole 6, ensuring that the first buckle 1 and the second buckle 11 are firmly fixed. The adjustment disc 914 is turned so that the pin 912 is inserted into the pin hole 6. The fixing pin 92 is pushed into the storage groove of the card block 3 by the pin 912. The first buckle 1 and the second buckle 11 are separated, which is convenient for single-person operation to open and is easy to use.
[0027] Specifically, a limiting ring 913 is provided on the surface of the pin 912 located inside the sleeve 911.
[0028] By adopting the above technical solution, the pin 912 is prevented from being inserted into the locking block 3, and the pin 912 is prevented from being dislodged from the sleeve 911.
[0029] In this embodiment, the main body 2 of the busbar trunking is installed in the middle of the second buckle 11. Pressing the fixing pin 92 compresses the return spring 93, and the fixing pin 92 is retracted into the locking block 3. The locking block 3 is locked into the locking groove 7. Under the elastic force of the return spring 93, the fixing pin 92 is inserted into the pin hole 6. Twisting the adjusting plate 914 makes the side of the pin rod 912 fit tightly against the fixing pin 92. Through the protective limit, the fixing pin 92 is prevented from falling out of the pin hole 6, ensuring that the first buckle 1 and the second buckle 11 are firmly fixed. Twisting the adjusting plate 914 makes the pin rod 912 inserted into the pin hole 6. The fixing pin 92 is pushed into the storage groove of the locking block 3 by the pin rod 912. The first buckle 1 and the second buckle 11 are separated, which is convenient for single-person operation to open and is easy to use. The fire-resistant filler 8 enhances the fire resistance of the main body 2 of the busbar trunking, and the heat sink 10 connected to one end of the main body 2 of the busbar trunking can dissipate the temperature inside the pin hole 6.
[0030] Example 2
[0031] The difference between this embodiment and embodiment 1 is that the positioning component 13 includes a positioning block 131 and a second reset spring 132. The second reset spring 132 is provided in the middle of the mounting groove 14, and the positioning block 131 is provided at the upper end of the second reset spring 132.
[0032] By adopting the above technical solution, the main body 2 of the busbar trunking is installed in the middle of the second buckle 11. The positioning hole 12 corresponds to the positioning block 131. The positioning block 131 is inserted into the positioning hole 12, so that the main body 2 of the busbar trunking can be quickly positioned and installed. At the same time, the positioning block 131 plays a limiting role to prevent the main body 2 of the busbar trunking from moving, and the positioning and installation are convenient.
[0033] Specifically, the positioning block 131 is always inserted into the positioning hole 12 under the elastic force of the reset spring 132.
[0034] By adopting the above technical solution, the positioning block 131 is secured into the positioning hole 12, enabling the busbar trunking body 2 to be quickly positioned and installed. At the same time, the positioning block 131 acts as a limit to prevent the busbar trunking body 2 from moving.
[0035] In this embodiment, the busbar trunking body 2 is installed in the middle of the second buckle 11, the positioning hole 12 corresponds to the positioning block 131, the positioning block 131 is inserted into the positioning hole 12, so that the busbar trunking body 2 can be quickly positioned and installed. At the same time, the positioning block 131 plays a limiting role to prevent the busbar trunking body 2 from moving, making positioning and installation convenient.
[0036] The working principle and usage process of this utility model are as follows: When using this utility model, the main body 2 of the busbar trunking is installed in the middle of the second buckle 11, with the positioning hole 12 corresponding to the positioning block 131. The positioning block 131 is inserted into the positioning hole 12, allowing the main body 2 of the busbar trunking to be quickly positioned and installed. At the same time, the positioning block 131 acts as a limit to prevent the main body 2 of the busbar trunking from moving. Pressing the fixing pin 92 compresses the return spring 93, causing the fixing pin 92 to retract into the locking block 3. The locking block 3 is inserted into the locking groove 7, and the fixing pin 92 is inserted into the pin hole 6 under the elastic force of the return spring 93. Turning the adjusting disc... 914 makes the side of the pin 912 fit tightly against the fixing pin 92. Through the protective limit, the fixing pin 92 is prevented from falling out of the pin hole 6, ensuring that the first buckle 1 and the second buckle 11 are firmly fixed. Turning the adjusting plate 914 makes the pin 912 inserted into the pin hole 6. The fixing pin 92 is pushed into the storage groove of the clip block 3 by the pin 912. The first buckle 1 and the second buckle 11 are separated, which is convenient for single-person operation to open and easy to use. The fire-resistant filler 8 enhances the fire resistance of the busbar trunking body 2, and the heat sink 10 connected to one end of the busbar trunking body 2 can dissipate the temperature inside the pin hole 6.
[0037] 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 flexible fire-resistant busbar trunking, comprising a second clip (11), characterized in that: The second buckle (11) has a busbar trunking body (2) installed in the middle. The upper end of the second buckle (11) has slots (7) on both sides. The side of the slots (7) has pin holes (6). The second buckle (1) is snapped into the top. The bottom of the first buckle (1) has blocks (3) on both sides. The sides of the blocks (3) and pin holes (6) have fixing components (9). The busbar trunking body (2) has heat sinks (10) on both sides. The busbar trunking body (2) has several flexible rubbers (4) inside. The flexible rubbers (4) have conductors (5) in the middle. The gap between the flexible rubbers (4) and the busbar trunking body (2) is filled with refractory filler (8). The bottom of the busbar trunking body (2) has several positioning holes (12). The bottom surface of the second buckle (11) has several mounting grooves (14). The mounting grooves (14) have positioning components (13) in the middle.
2. The flexible fire-resistant busbar trunking according to claim 1, characterized in that: The fixing component (9) includes a limiting component (91), a fixing pin (92) and a return spring (93). The return spring (93) is provided in the side storage groove of the card block (3), the side of the return spring (93) is connected to the fixing pin (92), and the limiting component (91) is provided on the side of the pin hole (6).
3. A flexible fire-resistant busbar trunking system according to claim 2, characterized in that: The limiting component (91) includes a sleeve (911), a pin (912), and an adjusting plate (914), wherein the internal thread of the sleeve (911) is engaged with the pin (912), and the side of the pin (912) is connected to the adjusting plate (914).
4. A flexible fire-resistant busbar trunking system according to claim 3, characterized in that: The pin (912) is provided with a limit ring (913) on the surface inside the sleeve (911).
5. A flexible fire-resistant busbar trunking system according to claim 1, characterized in that: The positioning component (13) includes a positioning block (131) and a second reset spring (132), wherein the second reset spring (132) is provided in the middle of the mounting groove (14), and the positioning block (131) is provided at the upper end of the second reset spring (132).
6. A flexible fire-resistant busbar trunking system according to claim 5, characterized in that: The positioning block (131) is always inserted into the positioning hole (12) under the elastic force of the second reset spring (132).
Citation Information
Patent Citations
Flexible fireproof bus duct
CN219477546U