Self-expanding fireproof sealing bus duct wall-penetrating structure

Abstract

The utility model relates to a kind of self-expanding fireproof sealing bus duct wall-penetrating structure, including bus duct main body, wall-penetrating sheath and limit sleeve plate, limit sleeve plate side is provided with fixed mechanism, fixed mechanism includes U type shell, rotating rod, sliding tooth plate and gear, U type shell is fixedly installed in limit sleeve plate side, and it is set in the cavity of U type shell, rotating rod rotation is installed in the cavity, sliding tooth plate is set in the inner wall side of the cavity, gear is fixedly installed in rotating rod one end, gear is engaged with sliding tooth plate, fixed plate is fixedly installed in the lower end of sliding tooth plate, and clamping column is fixedly installed on the upper side of fixed plate.The utility model is connected by wall-penetrating sheath, limit sleeve plate and fixed mechanism, when bus duct needs to pass through wall body, wall-penetrating sheath can protect the port of bus duct main body, and limit sleeve plate is connected with wall-penetrating sheath by fixed mechanism, so that the perforation can be sealed.

Description

Technical Field

[0001] This utility model relates to the field of busbar technology, and in particular to a self-expanding fireproof sealed busbar through-wall structure. Background Technology

[0002] Busbar trunking is a closed metal device made of copper or aluminum busbar columns. It is used to distribute large power to various components of a distributed system. In indoor low-voltage power transmission trunk line projects, it has increasingly replaced wires and cables. With the emergence of modern engineering facilities and equipment, the electricity consumption of various industries has increased rapidly. In particular, with the emergence of many high-rise buildings and large factory workshops, traditional cables as power transmission conductors can no longer meet the requirements of high-current transmission systems. The parallel use of multiple cables has brought many inconveniences to on-site installation and construction. Plug-in busbar trunking has emerged as a new type of power distribution conductor. Self-expanding fireproof sealing busbar trunking is a power transmission and distribution equipment designed specifically for scenarios with high fire protection requirements. It uses built-in thermal expansion materials to automatically expand and form a heat insulation barrier in the event of a fire, ensuring that the power system can maintain safe operation for a period of time at high temperatures. By filling the inside of the busbar trunking with thermal expansion materials (such as polyurethane), when the temperature rises to a certain level, these materials will expand to form a dense carbonized layer, blocking heat transfer and flame spread.

[0003] Existing busbar trunking systems have the following drawbacks in practical use: During the installation of busbar trunking, some buildings do not have pre-embedded through-wall pipes in their walls, requiring tools to be used to drill holes in the walls on-site. However, the inner walls of these holes may be uneven, which can easily cause wear and tear on the busbar trunking when it is passed through the wall. This can also lead to contamination and damage at the ports, affecting the normal use of the busbar trunking. Utility Model Content

[0004] In the existing technology, during the installation of busbar trunking, some building walls do not have pre-embedded through-wall pipes, requiring on-site drilling of holes in the wall using tools. However, the inner wall of the hole is uneven, which easily causes wear and tear on the busbar trunking when it is passed through the wall, and also easily causes contamination and damage to the port, affecting the normal use of the busbar trunking. This utility model provides a self-expanding fireproof sealed busbar trunking through-wall structure.

[0005] The technical solution adopted by this utility model is: a self-expanding fireproof sealed busbar trunking through-wall structure, including a busbar trunking body, a through-wall sleeve, and a limiting sleeve. A fixing mechanism is provided on one side of the limiting sleeve. The fixing mechanism includes a U-shaped shell, a rotating rod, a sliding toothed plate, and a gear. The U-shaped shell is fixedly installed on one side of the limiting sleeve. An installation cavity is opened inside the U-shaped shell. The rotating rod is rotatably installed in the installation cavity. The sliding toothed plate is disposed on one side of the inner wall of the installation cavity. The gear is fixedly installed at one end of the rotating rod and meshes with the sliding toothed plate. A fixing plate is fixedly installed at the lower end of the sliding toothed plate. A snap-fit ​​post is fixedly installed on the upper side of the fixing plate. A turbine is fixedly installed in the middle of the rotating rod. A worm gear is rotatably installed inside the U-shaped shell and meshes with the worm gear. A plug-in rod is provided on one side of the through-wall sleeve, and the plug-in rod corresponds to the snap-fit ​​post.

[0006] Furthermore, there are two sliding tooth plates and two gears, with the two gears and two sliding tooth plates located at both ends of the rotating rod, and the number of the plug rods corresponds to the number of sliding tooth plates.

[0007] Furthermore, a plug-in groove is provided on one side of the U-shaped shell, and the plug-in rod is inserted into the plug-in groove. A snap-fit ​​groove is provided on the lower side of the plug-in rod. The fixing plate and the snap-fit ​​post are both located on the lower side of the plug-in rod, and the snap-fit ​​post is inserted into the snap-fit ​​groove.

[0008] Furthermore, two guide rails are fixedly installed on one side of the inner wall of the mounting cavity, and guide sliders are fixedly installed on one side of each of the two sliding toothed plates. The two guide sliders are slidably installed in the two guide rails respectively.

[0009] Furthermore, a limiting mechanism is provided at the middle of the upper end of the U-shaped shell. The limiting mechanism is connected to one end of the worm gear and includes a rotating column, a sliding column, and a limiting block.

[0010] Furthermore, a limiting slot is provided on the upper side of the U-shaped shell, the rotating column is rotatably installed at the bottom of the inner wall of the limiting slot, the rotating column is fixedly connected to one end of the worm gear, a guide groove is provided on the upper side of the rotating column, the sliding column is slidably installed in the guide groove, the limiting block is fixedly installed on the upper end of the sliding column, the limiting block is inserted into the limiting slot, and a spring is provided between the sliding column and the guide groove.

[0011] Furthermore, both the through-wall sleeve and the limiting sleeve are fitted around the periphery of the busbar trunking body, and a threaded post is threadedly installed on the lower side of the through-wall sleeve.

[0012] The beneficial effects of this utility model are: This utility model, through a through-wall sleeve, a limiting sleeve, and a fixing mechanism, protects the port of the busbar trunking when it needs to pass through a wall. This prevents the inner wall of the perforation from easily causing wear and tear on the busbar trunking, as well as contamination and damage to the port. Furthermore, the fixing mechanism connects the limiting sleeve to the through-wall sleeve, sealing the perforation and thus improving the practicality of the through-wall structure.

[0013] Secondly, this utility model uses a limiting mechanism to fix the limiting sleeve and the through-wall sleeve after the fixing mechanism connects the limiting sleeve and the through-wall sleeve. This ensures the stability of the fixing mechanism after connecting the limiting sleeve and the through-wall sleeve, thereby improving the stability of the fixing mechanism during use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the entire utility model; Figure 2 This is an exploded view of the through-wall sheath and limiting sleeve of this utility model; Figure 3 This is a cross-sectional view of the fixing mechanism of this utility model; Figure 4 This is a cross-sectional view of the limiting mechanism of this utility model.

[0015] The following are marked in the diagram: 1. Busbar trunking body; 2. Through-wall sleeve; 3. Limiting sleeve; 4. Fixing mechanism; 5. Connecting rod; 6. U-shaped shell; 7. Mounting cavity; 8. Limiting mechanism; 9. Rotating rod; 10. Gear; 11. Guide rail; 12. Sliding toothed plate; 13. Fixing plate; 14. Snap-fit ​​post; 15. Turbine; 16. Worm gear; 17. Limiting slot; 18. Rotating post; 19. Guide groove; 20. Sliding post; 21. Spring; 22. Limiting insert. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0019] To address the problems existing in the background technology, this application proposes the following technical solution: a self-expanding fireproof sealed busbar trunking through-wall structure.

[0020] The specific technical solution includes a busbar trunking body 1, a through-wall sleeve 2, and a limiting sleeve 3. Both the through-wall sleeve 2 and the limiting sleeve 3 are fitted around the busbar trunking body 1. A threaded post is threaded onto the lower side of the through-wall sleeve 2. A fixing mechanism 4 is provided on one side of the limiting sleeve 3. The fixing mechanism 4 includes a U-shaped shell 6, a rotating rod 9, a sliding toothed plate 12, and a gear 10. The U-shaped shell 6 is fixedly installed on one side of the limiting sleeve 3, and an installation cavity 7 is opened inside the U-shaped shell 6. The rotating rod 9 is rotatably installed on... Inside the mounting cavity 7, a sliding toothed plate 12 is disposed on one side of the inner wall of the mounting cavity 7. A gear 10 is fixedly installed at one end of the rotating rod 9, and the gear 10 meshes with the sliding toothed plate 12. A fixing plate 13 is fixedly installed at the lower end of the sliding toothed plate 12, and a snap-fit ​​post 14 is fixedly installed on the upper side of the fixing plate 13. A worm gear 15 is fixedly installed in the middle of the rotating rod 9. A worm 16 is rotatably installed inside the U-shaped shell 6. The worm gear 15 meshes with the worm 16, and the worm gear 15 and the worm 16 can achieve self-locking, thus... The rotating rod 9 and gear 10 can be locked to ensure the stability of the sliding tooth plate 12, fixed plate 13 and locking post 14 after movement. A plug-in rod 5 is provided on one side of the through-wall sleeve 2. The plug-in rod 5 corresponds to the locking post 14. There are two sliding tooth plates 12 and two gears 10. The two gears 10 and two sliding tooth plates 12 are located at both ends of the rotating rod 9. The number of plug-in rods 5 corresponds to the number of sliding tooth plates 12. A plug-in groove is opened on one side of the U-shaped shell 6. The plug-in rod 5 is plugged into the plug-in groove. A locking groove is opened on the lower side of the plug-in rod 5. The fixed plate 13 and locking post 14 are located on the lower side of the plug-in rod 5. The locking post 14 is plugged into the locking groove. Two guide rails 11 are fixedly installed on one side of the inner wall of the mounting cavity 7. Guide sliders are fixedly installed on one side of each of the two sliding tooth plates 12. The two guide sliders are slidably installed in the two guide rails 11 respectively. The guide rails 11 and guide sliders can improve the stability of the sliding tooth plate 12 when it moves.

[0021] Reference Figure 4As shown, a limiting mechanism 8 is provided at the middle of the upper end of the U-shaped shell 6. The limiting mechanism 8 is connected to one end of the worm gear 16. The limiting mechanism 8 includes a rotating column 18, a sliding column 20, and a limiting block 22. A limiting slot 17 is provided on the upper side of the U-shaped shell 6. The rotating column 18 is rotatably installed at the bottom of the inner wall of the limiting slot 17. The rotating column 18 is fixedly connected to one end of the worm gear 16. A guide groove 19 is provided on the upper side of the rotating column 18. The sliding column 20 is slidably installed in the guide groove 19. The limiting block 22 is fixedly installed on the upper end of the sliding column 20. The limiting block 22 is inserted into the limiting slot 17. A spring 21 is provided between the sliding column 20 and the guide groove 19. One end of the sliding column 20 is straight, and the guide groove 19 is straight as a whole, so that the sliding column 20 can slide but cannot rotate, ensuring that the limiting block 22 can drive the rotating column 18 to rotate through the sliding column 20 and the guide groove 19.

[0022] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview: In use, when the busbar trunking body 1 needs to pass through a wall, the through-wall sleeve 2 is fitted onto the busbar trunking body 1, protecting the port of the busbar trunking body 1. Then, one end of the busbar trunking body 1 and the through-wall sleeve 2 are simultaneously inserted into the hole in the wall, protecting the port of the busbar trunking body 1. After adjusting the busbar trunking body 1 to a suitable position, the threaded column is rotated to abut and fix the threaded column against the busbar trunking body 1, thus fixing the through-wall sleeve 2 onto the busbar trunking body 1. Then, the limiting sleeve 3 is fitted onto the busbar trunking body 1, and the limiting sleeve 3 is pushed towards one end of the through-wall sleeve 2 to fix it. When the limiting sleeve 3 contacts one end of the through-wall sleeve 2, the plug rod 5 will insert into the plug groove. Then, by pulling the limiting sleeve 5... The insertion block 22 disengages from the limiting slot 17, releasing the limiting of the worm gear 16. By rotating the limiting block 22, it drives the rotating column 18 to rotate via the sliding column 20. The rotation of the rotating column 18 drives the worm gear 16 to rotate, which in turn drives the turbine 15, the rotating rod 9, and the gear 10 to rotate. The rotation of the gear 10 drives the sliding tooth plate 12, the fixing plate 13, and the snap-fit ​​post 14 to move upward. The upward movement of the snap-fit ​​post 14 allows it to be inserted into the snap-fit ​​groove on the lower side of the insertion rod 5, thereby achieving a fixed connection between the limiting sleeve 3 and the through-wall sleeve 2. After the limiting sleeve 3 and the through-wall sleeve 2 are connected, they can fix the main body 1 of the busbar trunking and seal the perforations in the wall. Rubber sealing gaskets are provided at the contact points between the limiting sleeve 3 and the through-wall sleeve 2 and the wall surface.

[0023] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0024] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A self-expanding fireproof sealed busbar trunking through-wall structure, characterized in that, The system includes a busbar trunking body (1), a through-wall sleeve (2), and a limiting sleeve (3). A fixing mechanism (4) is provided on one side of the limiting sleeve (3). The fixing mechanism (4) includes a U-shaped shell (6), a rotating rod (9), a sliding toothed plate (12), and a gear (10). The U-shaped shell (6) is fixedly installed on one side of the limiting sleeve (3). An installation cavity (7) is opened inside the U-shaped shell (6). The rotating rod (9) is rotatably installed in the installation cavity (7). The sliding toothed plate (12) is located on one side of the inner wall of the installation cavity (7). The gear (10) is fixed. Installed at one end of the rotating rod (9), the gear (10) meshes with the sliding tooth plate (12), a fixing plate (13) is fixedly installed at the lower end of the sliding tooth plate (12), a snap-fit ​​post (14) is fixedly installed on the upper side of the fixing plate (13), a turbine (15) is fixedly installed in the middle of the rotating rod (9), a worm gear (16) is rotatably installed inside the U-shaped shell (6), the turbine (15) meshes with the worm gear (16), and a plug-in rod (5) is provided on one side of the through-wall sleeve (2), the plug-in rod (5) corresponds to the snap-fit ​​post (14).

2. The self-expanding fireproof sealed busbar trunking through-wall structure according to claim 1, characterized in that, The number of the sliding toothed plate (12) and the gear (10) are both two. The two gears (10) and the two sliding toothed plates (12) are located at both ends of the rotating rod (9). The number of the plug rods (5) corresponds to the number of the sliding toothed plates (12).

3. The self-expanding fireproof sealed busbar trunking through-wall structure according to claim 2, characterized in that, The U-shaped shell (6) has a plug-in groove on one side, and the plug-in rod (5) is plugged into the plug-in groove. The plug-in rod (5) has a snap-fit ​​groove on its lower side. The fixing plate (13) and the snap-fit ​​post (14) are both located on the lower side of the plug-in rod (5), and the snap-fit ​​post (14) is plugged into the snap-fit ​​groove.

4. The self-expanding fireproof sealed busbar trunking through-wall structure according to claim 3, characterized in that, Two guide rails (11) are fixedly installed on one side of the inner wall of the mounting cavity (7), and guide sliders are fixedly installed on one side of each of the two sliding tooth plates (12). The two guide sliders are respectively slidably installed in the two guide rails (11).

5. The self-expanding fireproof sealed busbar trunking through-wall structure according to claim 1, characterized in that, A limiting mechanism (8) is provided at the middle of the upper end of the U-shaped shell (6). The limiting mechanism (8) is connected to one end of the worm (16). The limiting mechanism (8) includes a rotating column (18), a sliding column (20), and a limiting plug (22).

6. The self-expanding fireproof sealed busbar trunking through-wall structure according to claim 5, characterized in that, The upper side of the U-shaped shell (6) is provided with a limiting slot (17). The rotating column (18) is rotatably installed at the bottom of the inner wall of the limiting slot (17). The rotating column (18) is fixedly connected to one end of the worm (16). The upper side of the rotating column (18) is provided with a guide groove (19). The sliding column (20) is slidably installed in the guide groove (19). The limiting block (22) is fixedly installed at the upper end of the sliding column (20). The limiting block (22) is inserted into the limiting slot (17). A spring (21) is provided between the sliding column (20) and the guide groove (19).

7. The self-expanding fireproof sealed busbar trunking through-wall structure according to claim 1, characterized in that, The through-wall sleeve (2) and the limiting sleeve (3) are both sleeved around the busbar trunking body (1), and a threaded post is threaded on the lower side of the through-wall sleeve (2).

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