Fireproof bus duct with high protection effect
By adding protective covers, connecting rods, protective caps, and positioning mechanisms to the busbar trunking, the problems of easy damage to connectors and easy deformation of the outer shell are solved, achieving a highly efficient protection effect.
Patent Information
- Application Number
- CN202520344643.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-01
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-01
AI Technical Summary
The connectors of existing fire-resistant busbar trunking are easily damaged, and the outer casing is easily deformed, affecting the performance.
The busbar trunking is equipped with a protective cover, connecting rod, protective cover and positioning mechanism. The protective cover is guided by the guide frame, supported by the spring and limited by the positioning seat. The protective cover avoids impact when it is outside the plug-in, and the protective cover protects the main body when it is impacted.
It effectively prevents damage to connectors and deformation of the busbar trunking casing, thus improving the protection effect of the busbar trunking.
Smart Images

Figure CN223771744U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire-resistant busbar technology, specifically a fire-resistant busbar with high protection effect. Background Technology
[0002] A busbar trunking is a closed metal device made of copper or aluminum busbars, used to distribute large amounts of power to various components of a distributed system. According to patent application publication number CN102290758A, a fire-resistant busbar trunking is disclosed, comprising a housing; multiple conductors arranged parallel and spaced apart within the housing, with the conductors spaced apart from the housing; and an insulating layer covering the exterior of each conductor. The fire-resistant busbar trunking also includes fire-resistant filler filling between the conductors and between the conductors and the housing, thereby achieving insulation and fire resistance between the conductors and between the conductors and the housing.
[0003] However, existing fire-resistant busbar trunking requires connection to equipment or lines via connectors during use, but these connections are relatively weak and easily damaged. Furthermore, the outer shell of the busbar trunking is thin and easily deformed upon impact, which can lead to deformation of internal components and affect its normal operation. Therefore, improvements to the existing technology are necessary. Utility Model Content
[0004] The purpose of this invention is to provide a fire-resistant busbar trunking with high protection, which solves the problems of easy damage to connectors and easy deformation of the outer shell.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant busbar trunking with high protection effect, comprising a main body, two symmetrically distributed plug-in parts fixedly connected to the outer side of the main body, two symmetrically distributed protective covers slidably connected to the outer side of the main body, a guide rod fixedly connected to the outer side of the protective cover, a positioning mechanism provided on the protective cover, a mounting back plate fixedly connected to the lower end of the main body, four evenly distributed connecting ears fixedly connected to the outer side of the mounting back plate, a connecting rod slidably connected inside the connecting ears, a protective frame fixedly connected to the upper end of the connecting rod, a protective cover hinged to the upper end of the protective frame, a spring provided on the outer side of the connecting rod, and a retaining ring fixedly connected to the outer side of the connecting rod.
[0006] Preferably, a guide frame is fixedly connected to the outer side of the main body, and the guide frame is slidably connected to the guide rod, so that the guide frame can guide the movement of the guide rod.
[0007] Preferably, one end of the spring is fixedly connected to the retaining ring, and the other end of the spring is fixedly connected to the connecting lug. The spring can support the retaining ring with its elastic force.
[0008] Preferably, the connector is located inside the protective cover, and a mounting bracket is fixedly connected to the outer side of the mounting back plate, so that the protective cover can protect the connector.
[0009] Preferably, the positioning mechanism includes positioning grooves, and two pairs of symmetrically distributed positioning grooves are provided at the upper end of the main body. A connecting cover is fixedly connected to the outer side of the protective cover, and a positioning seat is slidably connected inside the connecting cover. A pull plate nail is fixedly connected to the upper end of the positioning seat, and a spring is provided on the outer side of the pull plate nail. The pull plate nail can drive the positioning seat to move.
[0010] Preferably, the connecting cover is slidably connected to the main body, the pull plate nail is slidably connected to the connecting cover, and the positioning seat is slidably connected to the positioning groove. The positioning seat can limit the position of the protective cover through the connecting cover.
[0011] Preferably, one end of the second spring is fixedly connected to the positioning seat, and the other end of the second spring is fixedly connected to the connecting cover. The second spring can automatically reset through the positioning seat.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, by adding connecting rods, protective covers and protective frames to the mounting back plate, allows the front of the busbar trunking to be protected by the protective cover after the busbar trunking is installed on the wall through the mounting back plate, thereby effectively preventing damage to the busbar trunking.
[0014] 2. This utility model adds a protective cover, a connecting cover, and a positioning seat to the main body. During use, the protective cover can be limited by the positioning seat. When the protective cover is outside the connector, it can prevent the connector from being damaged by impact, thus effectively protecting the busbar. Attached Figure Description
[0015] Figure 1 This is a perspective view of the overall structure of this utility model;
[0016] Figure 2 For the present utility model Figure 1 A three-dimensional sectional view;
[0017] Figure 3 For the present utility model Figure 1 A 3D view of the protective frame;
[0018] Figure 4 For the present utility model Figure 2 Enlarged view of the structure of part A.
[0019] In the diagram: 1. Main body; 2. Connector; 3. Protective cover; 4. Guide frame; 5. Guide rod; 6. Positioning mechanism; 7. Mounting back plate; 8. Connecting ear; 9. Connecting rod; 10. Protective frame; 11. Protective cover; 12. Retaining ring; 13. Spring 1; 14. Mounting bracket; 61. Positioning groove; 62. Connecting cover; 63. Positioning seat; 64. Pull plate nail; 65. Spring 2. 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] Please see Figure 1 , Figure 2 , Figure 3 A fire-resistant busbar trunking with high protection effect includes a main body 1. Two symmetrically distributed plug-in parts 2 are fixedly connected to the outer side of the main body 1. Two symmetrically distributed protective covers 3 are slidably connected to the outer side of the main body 1. A guide rod 5 is fixedly connected to the outer side of the protective cover 3. A positioning mechanism 6 is provided on the protective cover 3. A mounting back plate 7 is fixedly connected to the lower end of the main body 1. Four evenly distributed connecting ears 8 are fixedly connected to the outer side of the mounting back plate 7. A connecting rod 9 is slidably connected inside the connecting ears 8. A protective frame 10 is fixedly connected to the upper end of the connecting rod 9. A protective cover 11 is hinged to the upper end of the protective frame 10. A spring 13 is provided on the outer side of the connecting rod 9. A retaining ring 12 is fixedly connected to the outer side of the connecting rod 9.
[0022] Please see Figure 1 , Figure 2 , Figure 3 A guide frame 4 is fixedly connected to the outer side of the main body 1. The guide frame 4 is slidably connected to the guide rod 5. The guide frame 4 can guide the movement of the guide rod 5. One end of the spring 13 is fixedly connected to the retaining ring 12, and the other end of the spring 13 is fixedly connected to the connecting ear 8. The spring 13 can support the retaining ring 12 through its elastic force. The plug-in 2 is located inside the protective cover 3. A mounting bracket 14 is fixedly connected to the outer side of the mounting back plate 7. The protective cover 3 can protect the plug-in 2.
[0023] Please see Figure 2 , Figure 4The positioning mechanism 6 includes a positioning groove 61. Two pairs of symmetrically distributed positioning grooves 61 are provided on the upper end of the main body 1. A connecting cover 62 is fixedly connected to the outer side of the protective cover 3. A positioning seat 63 is slidably connected inside the connecting cover 62. A pull plate nail 64 is fixedly connected to the upper end of the positioning seat 63. A second spring 65 is provided on the outer side of the pull plate nail 64. The pull plate nail 64 can drive the positioning seat 63 to move. The connecting cover 62 is slidably connected to the main body 1. The pull plate nail 64 is slidably connected to the connecting cover 62. The positioning seat 63 is slidably connected to the positioning groove 61. The positioning seat 63 can limit the protective cover 3 through the connecting cover 62. One end of the second spring 65 is fixedly connected to the positioning seat 63. The other end of the second spring 65 is fixedly connected to the connecting cover 62. The second spring 65 can automatically reset through the positioning seat 63.
[0024] The specific implementation process of this utility model is as follows: When in use, after the main body 1 is installed on the wall through the mounting bracket 14, pull the pull plate nail 64. The pull plate nail 64 drives the positioning seat 63 to move and compresses the second spring 65. When the positioning seat 63 is disengaged from the current positioning groove 61, the limit on the protective cover 3 can be released. Then pull the protective cover 3 to move. When the protective cover 3 is disengaged from the area of the plug-in 2, the plug-in 2 can be connected. After the connection is completed, push the protective cover 3 to the outside of the plug-in 2. Then release the pull plate nail 64. The second spring 65 returns to its original position. The second spring 65 can drive the positioning seat 63 to slide back into the interior of the positioning groove 61 through its elasticity, thus completing the protection of the plug-in 2.
[0025] Then, the protective cover 11 is flipped to the outside of the protective frame 10. After the flip is completed, the main body 1 can be protected by the protective cover 11. When the main body 1 is about to be impacted, the impact contacts the protective cover 11, and the protective cover 11 pushes the protective frame 10 to move. The protective frame 10 compresses the spring 13 through the retaining ring 12 on the outside of the connecting rod 9. Since the connecting rod 9 is connected to the mounting back plate 7, the impact can be effectively prevented from being transmitted to the main body 1, thus effectively protecting the main body 1.
[0026] 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 high protection effect fire resistant bus duct comprising a main body (1), characterized in that: The outer side of the main body (1) is fixedly connected with two symmetrically distributed plug-in connectors (2), the outer side of the main body (1) is slidably connected with two symmetrically distributed protective covers (3), the outer side of the protective cover (3) is fixedly connected with a guide rod (5), the protective cover (3) is provided with a positioning mechanism (6), the lower end of the main body (1) is fixedly connected with a mounting back plate (7), the outer side of the mounting back plate (7) is fixedly connected with four evenly distributed connecting ears (8), the inside of the connecting ear (8) is slidably connected with a connecting rod (9), the upper end of the connecting rod (9) is fixedly connected with a protective frame (10), the upper end of the protective frame (10) is hingedly connected with a protective cover (11), the outer side of the connecting rod (9) is provided with a spring (13), and the outer side of the connecting rod (9) is fixedly connected with a blocking ring (12).
2. A high protection fire-rated busway as defined in claim 1, wherein: The outer side of the main body (1) is fixedly connected with a guide frame (4), and the guide frame (4) is slidably connected with the guide rod (5).
3. A high protection fire-rated busway as defined in claim 1, wherein: One end of the spring (13) is fixedly connected with the blocking ring (12), and the other end of the spring (13) is fixedly connected with the connecting ear (8).
4. A high protection fire-rated busway as defined in claim 1, wherein: The plug-in connector (2) is located in the inside of the protective cover (3), and the outer side of the mounting back plate (7) is fixedly connected with a mounting frame (14).
5. A high protection fire-rated busway as defined in claim 1, wherein: The positioning mechanism (6) comprises a positioning groove (61), two pairs of symmetrically distributed positioning grooves (61) are formed in the upper end of the main body (1), a connecting cover (62) is fixedly connected to the outer side of the protective cover (3), a positioning seat (63) is slidably connected to the inside of the connecting cover (62), a pull plate pin (64) is fixedly connected to the upper end of the positioning seat (63), and a spring (65) is arranged on the outer side of the pull plate pin (64).
6. A high protection fire-rated busway as defined in claim 5, wherein: The connecting cover (62) is slidably connected with the main body (1), the pull plate pin (64) is slidably connected with the connecting cover (62), and the positioning seat (63) is slidably connected with the positioning groove (61).
7. A high protection fire rated busway as defined in claim 5 wherein: One end of the spring (65) is fixedly connected with the positioning seat (63), and the other end of the spring (65) is fixedly connected with the connecting cover (62).
Citation Information
Patent Citations
Refractory busbar
CN102290758A