A deformation-resistant fire-resistant busway

Abstract

This utility model discloses a deformation-resistant fire-resistant busbar trunking, comprising a busbar trunking with a top plate mounted on its top. Reinforcing ribs are fixedly connected to the upper and lower ends of both outer walls on both sides. Multiple insert blocks are equidistantly fixed on the lower surface of the top plate, corresponding to the busbar trunking. The insert blocks are inserted into the busbar trunking, and a connecting plate is elastically connected inside each insert block. A movable groove is formed inside the reinforcing rib, corresponding to the connecting plate. A pressing assembly is installed in the movable groove, horizontally mounted within the reinforcing rib. The pressing assembly comprises two threaded parts, one end of which extends to the outside of the reinforcing rib, and the other end abuts against the connecting plate. This device, through the use of a threaded rod and an internally threaded sleeve, requires manual rotation of the threaded rod to move the internally threaded sleeve, thus easily removing the top plate. Even if the threaded rod is pressed by external force, the top plate will not accidentally detach from the busbar trunking.

Description

Technical Field

[0001] This utility model relates to the field of fire-resistant busbar technology, and in particular to a deformation-resistant fire-resistant busbar. Background Technology

[0002] Fire-resistant busbar trunking is a type of equipment used for cable laying and busbar introduction in power systems. It is made of fire-resistant materials and usually uses a metal shell to protect the cables and busbars inside. Fire-resistant busbar trunking has high fire resistance and can extend the safe operation time of the power system in the event of a fire. Fire-resistant busbar trunking is mainly used in buildings, computer rooms, factories and other places for cable laying and busbar introduction in power distribution systems. It can withstand high current loads, has good electrical and thermal conductivity, and can effectively transfer electrical energy.

[0003] Traditional busbar trunking requires numerous bolts for securing the top plate, making assembly cumbersome. According to Chinese patent document CN218919919U, a novel method for rapid top plate assembly is achieved by incorporating inserts, slots, spring grooves, memory springs, locking blocks, and slots. This eliminates the need for a large number of bolts, making assembly more convenient and efficient. Furthermore, by using pressure grooves, pressure plates, and pressure columns, pressing the pressure plate pushes the locking blocks out of their slots, releasing their restraints and allowing for easy removal of the top plate.

[0004] The patent document describes a design with a pressure plate and a pressure column. Pressing the pressure plate and the pressure column pushes the locking block out of the slot, allowing the top plate to be easily removed. However, this design has drawbacks. If the pressure plate is subjected to external force, the locking block can easily be pushed out of the slot, causing the top plate to detach from the busbar. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a deformation-resistant fire-resistant busbar trunking, which solves the problem that the existing busbar trunking is prone to detachment from the busbar trunking due to external forces while achieving rapid assembly of the top plate.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a deformation-resistant fire-resistant busbar trunking, comprising a busbar trunking, a top plate mounted on the top of the busbar trunking, and reinforcing ribs fixedly connected to the upper and lower ends of the outer walls on both sides. Multiple insert blocks are fixedly arranged at equal intervals on the lower surface of the top plate corresponding to the busbar trunking. The insert blocks are inserted into the busbar trunking, and a connecting plate is elastically connected inside the insert blocks. A movable groove is opened inside the reinforcing ribs corresponding to the connecting plate. A pressing assembly is arranged in the movable groove. The pressing assembly is horizontally installed inside the reinforcing ribs and comprises two threaded parts. One end of the pressing assembly extends to the outside of the reinforcing ribs, and the other end abuts against the connecting plate. The pressing assembly is used to drive the threaded end to move and press the connecting plate when rotated.

[0007] Preferably, the extrusion assembly includes a threaded rod horizontally rotatably mounted in a movable groove. One end of the threaded rod extends to the outside of the movable groove and a handle is fixedly provided on the end. The outer surface of the other end is smooth and unthreaded. An internally threaded sleeve is fitted onto the external thread of the threaded rod. An extrusion plate is fixedly connected to one end of the internally threaded sleeve, and the extrusion plate abuts against the connecting plate.

[0008] Preferably, the front end of the movable groove is adapted to the diameter of the threaded rod, and the rear end is adapted to the diameter of the internal threaded sleeve.

[0009] Preferably, a slot is provided inside the top of the busbar trunking corresponding to the plug block, the plug block is inserted into the slot, a groove is provided inside the plug block, a spring is fixedly connected to the inner wall of the groove, and a connecting plate is fixedly provided at one end of the spring.

[0010] Preferably, the groove extends into the interior of the reinforcing rib and communicates with the movable groove, and the connecting plate is located in the groove extending into the interior of the reinforcing rib.

[0011] Preferably, the bottom of the busbar trunking is fixedly connected to a base plate, which has a conductor inside and positioning plates are arrayed on the inner side wall. The positioning plates are U-shaped and correspond one-to-one with the positions of the conductors. Anti-collision plates are fixedly connected between the two sides of the positioning plates and the inner wall of the busbar trunking.

[0012] Preferably, the lower ends of the inner walls on both sides of the busbar trough are fixedly connected with reinforcing ribs.

[0013] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0014] This device enables rapid assembly of the top plate while simultaneously using a combination of a threaded rod and an internal threaded sleeve to drive the pressing plate to press the connecting plate, releasing the top plate from its limit and allowing it to be easily removed. The threaded rod and internal threaded sleeve are designed so that the internal threaded sleeve can only be moved by manually rotating the threaded rod. Even if the threaded rod is pressed by external force, the top plate will not accidentally detach from the busbar. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 4 This is a top view of the structure of this utility model;

[0019] The components are: 1. Busbar trunking; 2. Reinforcing rib; 3. Top plate; 4. Insert block; 401. Slot; 5. Base plate; 6. Conductor; 7. Positioning plate; 8. Anti-collision plate; 9. Reinforcing rib; 10. Groove; 11. Spring; 12. Connecting plate; 13. Movable groove; 14. Extrusion assembly; 1401. Threaded rod; 1402. Thruster; 1403. Internal threaded sleeve; 1404. Extrusion plate. Detailed Implementation

[0020] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0021] Example 1

[0022] like Figure 1 , Figure 2As shown, this utility model provides a deformation-resistant fire-resistant busbar trunking, including a busbar trunking 1. A top plate 3 is mounted on the top of the busbar trunking 1, and reinforcing ribs 2 are fixedly connected to the upper and lower ends of the outer walls on both sides. A plurality of insert blocks 4 are fixedly provided at equal intervals on the lower surface of the top plate 3 corresponding to the busbar trunking 1. The insert blocks 4 are inserted into the busbar trunking 1, and a connecting plate 12 is elastically connected inside the insert blocks 4. A movable groove 13 is opened inside the reinforcing rib 2 corresponding to the connecting plate 12. A pressing assembly 14 is provided in the movable groove 13. The pressing assembly 14 is horizontally installed in the reinforcing rib 2 and includes two threaded parts. One end of the pressing assembly 14 extends to the outside of the reinforcing rib 2, and the other end abuts against the connecting plate 12. The pressing assembly 14 is used to drive the threaded end to move and press the connecting plate 12 when rotating.

[0023] The extrusion assembly 14 includes a threaded rod 1401 that is horizontally rotatably mounted in the movable groove 13. One end of the threaded rod 1401 extends to the outside of the movable groove 13 and a handle 1402 is fixedly provided on the end. The outer surface of the other end is smooth and unthreaded. An internal threaded sleeve 1403 is threaded onto the external thread of the threaded rod 1401. An extrusion plate 1404 is fixedly connected to one end of the internal threaded sleeve 1403. The extrusion plate 1404 abuts against the connecting plate 12.

[0024] The front end of the movable groove 13 is adapted to the diameter of the threaded rod 1401, and the rear end is adapted to the diameter of the internal threaded sleeve 1403.

[0025] A slot 401 is provided inside the top of the busbar trough 1, corresponding to the plug 4. The plug 4 is inserted into the slot 401. A groove 10 is provided inside the plug 4. A spring 11 is fixedly connected to the inner wall of the groove 10. A connecting plate 12 is fixedly provided at one end of the spring 11.

[0026] The groove 10 extends into the interior of the reinforcing ridge 2 and communicates with the movable groove 13. The connecting plate 12 is located in the groove 10 that extends into the interior of the reinforcing ridge 2.

[0027] In this embodiment, when the top plate 3 needs to be assembled, the insert 4 of the top plate 3 is aligned with the slot 401 opened on the busbar groove 1, so that the insert 4 is inserted into the slot 401. During this process, the connecting plate 12 installed in the insert 4 is squeezed by the inner wall of the slot 401, and the connecting plate 12 is squeezed by the spring 11. The spring 11 deforms under the force and has elastic potential energy of rebound. When the insert 4 is fully inserted into the slot 401, the connecting plate 12 contacts the groove 10 provided in the reinforcing rib 2 and is no longer squeezed. Under the action of the spring 11, it moves into the groove 10 in the reinforcing rib 2 and contacts the pressing plate 1404. At this time, the connecting plate 12 is inserted and fixed to the reinforcing rib 2, and the top plate 3 cannot move, thus completing the limiting and fixing of the top plate 3. When the top plate 3 needs to be disassembled, the handle 1402 is turned, and the handle 1402 drives the threaded rod 1401 to rotate. When the threaded rod 1401 rotates, it drives its external thread sleeve. The internal threaded sleeve 1403 moves, and the direction of movement of the internal threaded sleeve 1403 changes according to the rotation direction of the threaded rod 1401, so that the internal threaded sleeve 1403 drives the extrusion plate 1404 to extrude the connecting plate 12. When the connecting plate 12 is completely extruded into the groove 10 opened in the insert block 4, the connecting plate 12 is no longer inserted with the reinforcing rib 2. At this time, the top plate 3 is in a free state. While realizing the rapid assembly of the top plate 3, the combination of the threaded rod 1401 and the internal threaded sleeve 1403 drives the extrusion plate 1404 to move and extrude the connecting plate 12, releasing the limit on the top plate 3, thereby easily removing the top plate 3. The setting of the threaded rod 1401 and the internal threaded sleeve 1403 requires manual rotation of the threaded rod 1401 to realize the movement of the internal threaded sleeve 1403. Even if the threaded rod 1401 is extruded by external force, the top plate 3 will not accidentally detach from the busbar 1.

[0028] This embodiment enables the rapid assembly of the top plate 3 while simultaneously driving the pressing plate 1404 to press the connecting plate 12 using a combination of threaded rod 1401 and internal threaded sleeve 1403. This releases the restriction on the top plate 3 and allows for its disassembly. The threaded rod 1401 and internal threaded sleeve 1403 require manual rotation of the threaded rod 1401 to move the internal threaded sleeve 1403. Even if the threaded rod 1401 is pressed by external force, the top plate 3 will not accidentally detach from the busbar 1.

[0029] Example 2

[0030] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 , Figure 3 , Figure 4As shown, in order to better realize this utility model, the following configuration is adopted: In this embodiment, the bottom of the busbar trough 1 is fixedly connected to the bottom plate 5, the inside is provided with conductor 6, and the inner side wall is arrayed with positioning plates 7. The positioning plates 7 are U-shaped and correspond one-to-one with the positions of conductor 6. Anti-collision plates 8 are fixedly connected between the two sides of the positioning plates 7 and the inner wall of the busbar trough 1.

[0031] The lower ends of the inner walls on both sides of the busbar trough 1 are fixedly connected with reinforcing ribs 9.

[0032] In this embodiment, the outer shell of the busbar trunking 1 is made of fire-resistant material with a temperature resistance of ≥1100℃ and insulating material with a temperature resistance of ≥300℃, which has high fire resistance. By setting the positioning plate 7 and the anti-collision plate 8, the internal structure of the busbar trunking 1 is well supported, which improves the overall compressive strength of the busbar trunking 1. At the same time, the conductor 6 is evenly distributed, which has a good heat dissipation effect. By setting the reinforcing ribs 9 and the reinforcing ridges 2, the structural strength of the busbar trunking 1 is further improved, which effectively prevents the busbar trunking 1 from deforming during use or transportation.

[0033] 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 deformation-resistant fire-resistant busbar trunking, comprising a busbar trunking (1), wherein a top plate (3) is fitted on the top of the busbar trunking (1), and reinforcing ribs (2) are fixedly connected to the upper and lower ends of the outer walls on both sides; a plurality of insert blocks (4) are fixedly provided at equal intervals on the lower surface of the top plate (3) corresponding to the busbar trunking (1), the insert blocks (4) are inserted into the busbar trunking (1), and a connecting plate (12) is elastically connected inside the insert blocks (4), characterized in that: The reinforcing rib (2) has a movable groove (13) corresponding to the connecting plate (12) inside, and the movable groove (13) is provided with a The extrusion assembly (14) is horizontally installed inside the reinforcing rib (2). It includes two threaded parts. One end of the extrusion assembly (14) extends to the outside of the reinforcing rib (2), and the other end abuts against the connecting plate (12). The extrusion assembly (14) is used to drive the threaded end to move and extrude the connecting plate (12) when rotating.

2. The deformation-resistant fire-resistant busbar trunking according to claim 1, characterized in that: The extrusion assembly (14) includes a threaded rod (1401) that is horizontally rotatably installed in the movable groove (13). One end of the threaded rod (1401) extends to the outside of the movable groove (13) and a handle (1402) is fixedly provided on the end. The outer surface of the other end is smooth and unthreaded. An internal threaded sleeve (1403) is sleeved on the external thread of the threaded rod (1401). An extrusion plate (1404) is fixedly connected to one end of the internal threaded sleeve (1403). The extrusion plate (1404) abuts against the connecting plate (12).

3. The deformation-resistant fire-resistant busbar trunking according to claim 2, characterized in that: The front end of the movable groove (13) is adapted to the diameter of the threaded rod (1401), and the rear end is adapted to the diameter of the internal threaded sleeve (1403).

4. The deformation-resistant fire-resistant busbar trunking according to claim 2, characterized in that: The top of the busbar groove (1) has a slot (401) corresponding to the plug (4). The plug (4) is inserted into the slot (401). The plug (4) has a groove (10) inside. A spring (11) is fixedly connected to the inner wall of the groove (10). A connecting plate (12) is fixedly provided at one end of the spring (11).

5. A deformation-resistant fire-resistant busbar trunking according to claim 4, characterized in that: The groove (10) extends into the interior of the reinforcing ridge (2) and communicates with the movable groove (13). The connecting plate (12) is located in the groove (10) that extends into the interior of the reinforcing ridge (2).

6. The deformation-resistant fire-resistant busbar trunking according to claim 1, characterized in that: The bottom of the busbar trough (1) is fixedly connected to a base plate (5), and a conductor (6) is provided inside. Positioning plates (7) are arrayed on the inner side wall. The positioning plates (7) are U-shaped and correspond one-to-one with the positions of the conductors (6). Anti-collision plates (8) are fixedly connected between the two sides of the positioning plates (7) and the inner wall of the busbar trough (1).

7. The deformation-resistant fire-resistant busbar trunking according to claim 1, characterized in that: The lower ends of the inner walls on both sides of the busbar trunking (1) are fixedly connected with reinforcing ribs (9).

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