Intensive fireproof bus duct
By introducing components such as threaded rods, fixing brackets, and knobs into dense fire-resistant busbar trunking, the problem of inconvenient adjustment of lifting rings is solved, achieving flexible adjustment of lifting rings and simplifying installation.
Patent Information
- Application Number
- CN202520229197.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-13
AI Technical Summary
The lifting rings of dense fire-resistant busbar trunking are difficult to adjust during hoisting, making installation inconvenient.
The position of the lifting ring can be adjusted and stably fixed by setting up components such as threaded rods, fixing brackets, knobs, limit plates, locking blocks and springs.
It enables flexible adjustment of the lifting ring position and facilitates installation, thereby improving installation efficiency.
Smart Images

Figure CN223771743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire-resistant busbar technology, specifically a dense type of fire-resistant busbar. Background Technology
[0002] Fire-resistant busbar trunking is a compact power transmission device with excellent fire resistance. This type of equipment is mainly used in commercial buildings, industrial equipment, data centers, and other environments where stable power transmission and fire and heat resistance are particularly important. The main characteristics of high-density fire-resistant busbar trunking include: Fire resistance: Fire-resistant busbar trunking is made of special materials that can withstand high temperatures. Some high-end products can even maintain normal operation for a period of time under fire conditions. Compact design: Compared to traditional cable systems, wall-mounted or suspended busbar trunking is more compact, saving space. This design facilitates installation and reduces maintenance complexity. Easy installation and maintenance: Due to its modular design, each section of the busbar trunking can be replaced individually, making installation and maintenance more convenient. Versatility: Whether in newly built facilities or in older facilities requiring upgrades, busbar trunking can be installed and configured relatively easily.
[0003] However, the lifting rings of dense fire-resistant busbar trunking are not easy to adjust during hoisting, making installation inconvenient. Utility Model Content
[0004] The purpose of this utility model is to provide a dense fire-resistant busbar trunking, which solves the problem that the lifting rings are inconvenient to adjust during hoisting and the installation is not convenient.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dense fire-resistant busbar trunking, comprising a trunking body, an mounting block slidably connected to the inner side of the upper end of the trunking body, a lifting ring fixedly connected to the upper end of the mounting block, a fixing frame fixedly connected inside the trunking body, a threaded rod rotatably connected inside the fixing frame, a knob fixedly connected to the left side of the threaded rod, the knob contacting the fixing frame, a limit plate contacting the upper end of the fixing frame, a locking block fixedly connected to the lower end of the limit plate, a locking groove opened inside the knob, a locking block slidably connected inside the locking groove, a sliding rod fixedly connected to the lower end of the limit plate, the sliding rod slidably connected to the fixing frame, a limit ring fixedly connected inside the fixing frame, and a spring provided on the outer side of the sliding rod.
[0006] Preferably, there are two mounting blocks, which are symmetrically distributed on the groove. The design of the mounting blocks can drive the lifting ring to move.
[0007] Preferably, the outer side of the threaded rod is provided with positive and negative threads, and the threaded rod is connected to the mounting block by threads. Through the design of the threaded rod, two mounting blocks can be moved simultaneously.
[0008] Preferably, a retaining ring is fixedly connected to the outer side of the threaded rod. The retaining ring contacts the fixing frame, and the design of the retaining ring can limit the movement of the threaded rod.
[0009] Preferably, there are multiple slots, which are arranged in a ring on the knob. The slots are designed to work with the locking blocks to limit the movement of the knob.
[0010] Preferably, the limiting ring is in contact with the limiting plate and is slidably connected to the slide rod. The design of the limiting ring can limit the movement of the slide rod.
[0011] Preferably, one end of the spring contacts the slide rod, and the other end of the spring contacts the limiting ring. Through the design of the spring, the locking block can be driven to limit the knob.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, by incorporating components such as a threaded rod, a fixing frame, and a knob, allows for adjustment of the lifting ring's position by rotating the threaded rod, which in turn causes the threaded rod to move in relation to the mounting block. This solves the problem of inconvenient lifting ring adjustment during the hoisting of dense fire-resistant busbar trunking, making installation difficult.
[0014] 2. This utility model, by setting up components such as a limiting plate, a locking block, and a spring, allows the locking block on the limiting plate to slide into the locking groove on the knob through the elastic force of the spring, thus limiting the knob and the threaded rod, thereby keeping the lifting ring stable after adjustment. 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 view of the local structure;
[0017] Figure 3 For the present utility model Figure 1 A front sectional view;
[0018] Figure 4 For the present utility model Figure 3 Enlarged view of part A of the structure.
[0019] In the diagram: 1. Groove; 2. Mounting block; 21. Lifting ring; 3. Fixing bracket; 31. Threaded rod; 32. Retaining ring; 33. Knob; 4. Limiting plate; 41. Locking block; 42. Locking groove; 43. Sliding rod; 44. Limiting ring; 45. Spring. 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 1-4 A dense fire-resistant busbar trunking includes a trunking body 1. Two mounting blocks 2 are slidably connected to the inner side of the upper end of the trunking body 1. These two mounting blocks 2 are symmetrically distributed on the trunking body 1. The design of the mounting blocks 2 allows for the movement of lifting rings 21. Lifting rings 21 are fixedly connected to the upper end of the mounting blocks 2. A fixing frame 3 is fixedly connected inside the trunking body 1. A threaded rod 31 is rotatably connected inside the fixing frame 3. The outer side of the threaded rod 31 is provided with positive and negative threads. The threaded rod 31 is threadedly connected to the mounting blocks 2. The design of the threaded rod 31 allows for the simultaneous movement of both mounting blocks 2.
[0022] Please see Figure 2-4 A retaining ring 32 is fixedly connected to the outer side of the threaded rod 31. The retaining ring 32 contacts the fixing frame 3. The retaining ring 32 can limit the threaded rod 31. A knob 33 is fixedly connected to the left side of the threaded rod 31. The knob 33 contacts the fixing frame 3. The upper end of the fixing frame 3 contacts the limiting plate 4. The lower end of the limiting plate 4 is fixedly connected to the locking block 41. The knob 33 has a locking groove 42 inside. There are multiple locking grooves 42. The multiple locking grooves 42 are arranged in a ring on the knob 33. The locking grooves 42 can cooperate with the locking block 41 to limit the knob 33.
[0023] Please see Figure 2-4 The slot 42 has a sliding block 41 inside, and the lower end of the limiting plate 4 is fixedly connected to a slide rod 43. The slide rod 43 is slidably connected to the fixing frame 3. The fixing frame 3 has a fixed limiting ring 44 inside, which contacts the limiting plate 4 and is slidably connected to the slide rod 43. The limiting ring 44 can limit the slide rod 43 through its design. A spring 45 is provided on the outside of the slide rod 43. One end of the spring 45 contacts the slide rod 43, and the other end of the spring 45 contacts the limiting ring 44. The spring 45 can drive the locking block 41 to limit the knob 33.
[0024] The specific implementation process of this utility model is as follows: When in use, by moving the limiting plate 4 away from the knob 33, the limiting plate 4 drives the slide rod 43 to move, so that the slide rod 43 slides in the limiting ring 44, so that the slide rod 43 squeezes the spring 45, and the limiting plate 4 drives the locking block 41 to move, so that the locking block 41 slides out of the locking groove 42 on the knob 33, and the limitation on the knob 33 can be released.
[0025] By rotating the knob 33, the threaded rod 31 is driven to rotate, causing the threaded rod 31 to move with the mounting block 2, thereby moving the mounting block 2 on the threaded rod 31. This allows the mounting block 2 to slide within the groove 1, and the mounting block 2 to move the lifting ring 21, thus adjusting the position of the lifting ring 21.
[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 dense fire resistant busway comprising a trough (1) characterized in that: The upper end of the groove body (1) is slidably connected with a mounting block (2), the upper end of the mounting block (2) is fixedly connected with a lifting ring (21), the inside of the groove body (1) is fixedly connected with a fixed frame (3), the inside of the fixed frame (3) is rotatably connected with a threaded rod (31), the left side of the threaded rod (31) is fixedly connected with a knob (33), the knob (33) is in contact with the fixed frame (3), the upper end of the fixed frame (3) is in contact with a limiting plate (4), the lower end of the limiting plate (4) is fixedly connected with a clamping block (41), the inside of the knob (33) is provided with a clamping groove (42), the inside of the clamping groove (42) is slidably connected with the clamping block (41), the lower end of the limiting plate (4) is fixedly connected with a sliding rod (43), the sliding rod (43) is slidably connected with the fixed frame (3), the inside of the fixed frame (3) is fixedly connected with a limiting ring (44), and the outer side of the sliding rod (43) is provided with a spring (45).
2. The dense fire resistant busway of claim 1, wherein: The number of the mounting block (2) is two, and the two mounting blocks (2) are symmetrically distributed on the groove body (1).
3. The dense fire resistant busway of claim 1, wherein: The outer side of the threaded rod (31) is provided with a right and left thread, and the threaded rod (31) is connected with the mounting block (2) through the thread.
4. The dense fire-rated busway of claim 1, wherein: The outer side of the threaded rod (31) is fixedly connected with a blocking ring (32), and the blocking ring (32) is in contact with the fixed frame (3).
5. The dense fire-rated busway of claim 1, wherein: The number of the clamping groove (42) is multiple, and the multiple clamping grooves (42) are annularly distributed on the knob (33).
6. The dense fire-rated busway of claim 1, wherein: The limiting ring (44) is in contact with the limiting plate (4), and the limiting ring (44) is slidably connected with the sliding rod (43).
7. The dense fire-rated busway of claim 1, wherein: One end of the spring (45) is in contact with the sliding rod (43), and the other end of the spring (45) is in contact with the limiting ring (44).