Fire-resistant bus duct with good deformation resistance

Abstract

This utility model discloses a fire-resistant busbar trunking with good deformation resistance, relating to the field of power transmission device technology. It includes a pair of busbar trunking bodies, with copper busbars fixedly installed at their closest ends. A connector is slidably connected between the two copper busbars. A base plate is slidably connected between the two busbar trunking bodies, and support plates are fixedly connected to both ends of the base plate. A column is provided on the top of the base plate, and an mounting plate is fixedly installed on the top of the column. A fixing component is provided below the mounting plate, and a locking element is provided at the front end of the mounting plate. This utility model, by setting up the fixing component and locking element, utilizes a transmission plate to compress a damping spring, thereby driving a pressure plate to flatten the connection point of the busbar trunking. Through the cooperation of a limiting rod and a limiting groove, the pressure plate is kept in a compressed state, and with the support plate at the bottom for support, the deformation resistance of the busbar trunking is improved, the service life of the device is extended, and the normal power transmission is ensured.

Description

Technical Field

[0001] This utility model relates to the field of power transmission device technology, specifically to a fire-resistant busbar trunking with good deformation resistance. Background Technology

[0002] Busbar trunking is a modular power distribution device used for high-current power transmission. Its conductor part consists of copper or aluminum busbars with high conductivity, which are responsible for transmitting current. The conductor surface is wrapped with insulating material and the outer shell is made of galvanized steel plate or aluminum profile, which provides mechanical protection and heat dissipation. It can replace traditional cables and is widely used in construction, industry, data centers and other scenarios.

[0003] During use, the conductor of a busbar will heat up when a large current passes through it. Currently, in some scenarios with large spans, long-term thermal expansion and contraction can cause deformation and sagging at the connection between two busbars, accelerating material aging and even causing breakage, increasing maintenance costs and affecting normal power transmission. Utility Model Content

[0004] To address the aforementioned technical problems, a fire-resistant busbar trunking with good deformation resistance is provided. This technical solution solves the problem mentioned in the background art that, in some scenarios with large spans, long-term thermal expansion and contraction of traditional busbar trunking can cause deformation and sagging at the connection between two busbar trunkings, accelerating material aging and even causing breakage, increasing maintenance costs and affecting normal power transmission.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fire-resistant busbar trunking with good deformation resistance includes a pair of busbar trunking bodies. Copper busbars are fixedly installed at the ends of the two busbar trunking bodies that are close to each other. A connector is slidably connected between the two copper busbars. A pair of mating plates fixedly connected to the busbar trunking bodies are provided on the left and right sides of the connector. A connecting piece is provided on the side of the two sets of mating plates that are far from each other. A base plate is slidably connected between the two busbar trunking bodies. Support plates are fixedly connected to the front and rear ends of the base plate. Columns are fixedly connected to the top left and right sides of the base plate. An mounting plate is fixedly installed on the top of the column. A fixing component is provided below the mounting plate. A locking piece is provided at the front end of the mounting plate.

[0007] Optionally, the fixing assembly includes a pair of guide grooves, which are respectively opened on the top left and right sides of the mounting plate. A bidirectional screw is rotatably installed inside the guide groove. A pair of movable sleeves are threadedly connected to the surface of the bidirectional screw. A connecting rod is hinged to the bottom of each of the movable sleeves. A transmission plate is hinged to the other end of each of the connecting rods. A pair of damping springs are fixedly installed at the bottom of the transmission plate. A pressure plate is fixedly connected to the other end of each of the damping springs. A top plate is fixedly connected to the bottom of each of the pressure plates.

[0008] Optionally, the bottom front and rear sides of the pressure plate abut against the top of the two busbar trunking bodies, the front and rear ends of the top plate are slidably connected to the side walls of the two busbar trunking bodies that are close to each other, and the bottom of the top plate abuts against the top of the docking plate.

[0009] Optionally, the locking component includes a telescopic sleeve rod and a limiting groove. The telescopic sleeve rod is rotatably mounted on the front end of the mounting plate, and the rear end of the telescopic sleeve rod passes through the front sidewall of the mounting plate and is fixedly connected to the front end of the bidirectional screw. A rotating plate is fixedly connected to the front end of the telescopic sleeve rod, and a limiting rod is rotatably mounted on the upper end of the rotating plate. The limiting groove is opened at the front end of the mounting plate, and the rear end of the limiting rod is slidably connected to the inside of the limiting groove.

[0010] Optionally, the connector on the right side includes a retaining plate, which is slidably connected to the right end of the mating plate. The right end of the retaining plate has a groove, and an elastic plate is provided inside the groove. The right end of the elastic plate is threaded with a bolt, and the left end of the bolt passes through the right end of the connector and is threadedly connected to the left elastic plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This solution incorporates a fixing component and a locking mechanism. By using a transmission plate to compress a damping spring, the pressure plate is driven to flatten the connection point of the busbar trunking. The cooperation between the limiting rod and the limiting groove keeps the pressure plate in a pressed state, and it is supported by the bottom support plate. This improves the deformation resistance of the busbar trunking, extends the service life of the device, and ensures normal power transmission.

[0013] 2. This solution incorporates connectors, utilizing the cooperation of clamping plates and mating plates to tightly connect the copper busbars at both ends to the connectors. Bolts drive the elastic plate to press against the clamping plate, fixing the clamping plate, mating plate, and connectors, thus completing the connection of the two busbar trunkings. Furthermore, the elastic plate absorbs the dynamic stress generated by thermal expansion and contraction or mechanical vibration, improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 Cross-sectional view of the three-dimensional structure of this utility model Figure 1 ;

[0016] Figure 3 Cross-sectional view of the three-dimensional structure of this utility model Figure 2 ;

[0017] Figure 4 for Figure 2 A partially enlarged schematic diagram of the structure at point A;

[0018] Figure 5 for Figure 3 A magnified view of the structure at point B.

[0019] The numbers on the map are:

[0020] 1. Busbar trunking body; 2. Copper busbar; 3. Connector; 4. Connecting plate; 5. Connecting component; 51. Clamping plate; 52. Groove; 53. Elastic plate; 54. Bolt; 6. Base plate; 7. Support plate; 8. Column; 9. Mounting plate; 10. Fixing component; 101. Guide groove; 102. Bidirectional screw; 103. Moving sleeve; 104. Connecting rod; 105. Transmission plate; 106. Damping spring; 107. Pressure plate; 108. Top plate; 11. Locking component; 111. Telescopic sleeve rod; 112. Rotating plate; 113. Limiting rod; 114. Limiting groove. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figure 1As shown, a fire-resistant busbar trunking with good deformation resistance includes a pair of busbar trunking bodies 1. Copper busbars 2 are fixedly installed at the ends of the two busbar trunking bodies 1 that are close to each other. A connector 3 is slidably connected between the two copper busbars 2. A pair of mating plates 4, fixedly connected to the busbar trunking bodies 1, are provided on both the left and right sides of the connector 3. Connecting pieces 5 are provided on the sides of the two sets of mating plates 4 that are far apart from each other. A base plate 6 is slidably connected between the two busbar trunking bodies 1. Support plates 7 are fixedly connected to both the front and rear ends of the base plate 6. Columns 8 are fixedly connected to the top left and right sides of the base plate 6. An mounting plate 9 is fixedly installed on the top of the column 8. A fixing component 10 is provided below the mounting plate 9. A locking piece 11 is provided at the front end of the mounting plate 9. In use, the locking plate 51 cooperates with the mating plates 4 to lock the two busbar trunking bodies 1 together. The copper busbar 2 at the end is tightly connected to the connector 3, and the elastic plate 53 is driven by the bolt 54 to press the clamping plate 51, thereby fixing the clamping plate 51, the docking plate 4, and the connector 3, completing the connection of the busbar trunking. The transmission plate 105 in the fixing assembly 10 presses the damping spring 106, thereby driving the pressure plate 107 to flatten the connection of the busbar trunking. The pressure plate 107 is kept in a pressed state by the cooperation of the limiting rod 113 and the limiting groove 114, and is supported by the bottom support plate 7, which improves the deformation resistance of the busbar trunking. In addition, the surface of the main body 1 of the busbar trunking and the surface of the connecting materials are coated with ceramic fireproof coating. When exposed to fire, an insulating layer is formed at high temperature to prevent short circuits, improve fire resistance, extend the service life of the device, and ensure normal power transmission.

[0023] Furthermore, such as Figure 2 - Figure 5As shown, the fixing assembly 10 includes a pair of guide grooves 101, which are respectively opened on the top left and right sides of the mounting plate 9. A bidirectional screw 102 is rotatably mounted inside the guide groove 101. A pair of movable sleeves 103 are threadedly connected to the surface of the bidirectional screw 102. A connecting rod 104 is hinged to the bottom of each of the two movable sleeves 103. A transmission plate 105 is hinged to the other end of each connecting rod 104. A pair of damping springs 106 are fixedly mounted to the bottom of the transmission plate 105. A pressure plate 107 is fixedly connected to the other end of each damping spring 106. A top plate 108 is fixedly connected to the bottom of each pressure plate 107. The bottom front and rear sides of the pressure plate 107 abut against the tops of the two busbar trunking bodies 1, respectively. The front and rear ends of 08 are slidably connected to the side walls of the two busbar trunking bodies 1 that are close to each other. The bottom of the top plate 108 abuts against the top of the docking plate 4. By rotating the bidirectional screw 102, the moving sleeve 103 is driven to move along the guide groove 101, so that the moving sleeve 103 drives the transmission plate 105 to press down through the connecting rod 104. By squeezing the damping spring 106, the pressure plate 107 drives the top plate 108 to flatten the top of the connector 3, docking plate 4 and clamping plate 51. The two ends of the pressure plate 107 flatten the top of the two ends of the busbar trunking connection. In addition, the bottom plate 6 and the support plate 7 support the bottom, which together improves the deformation resistance of the busbar trunking, extends the service life of the device and reduces the maintenance cost.

[0024] The locking component 11 includes a telescopic sleeve 111 and a limiting groove 114. The telescopic sleeve 111 is rotatably mounted on the front end of the mounting plate 9, and the rear end of the telescopic sleeve 111 penetrates the front sidewall of the mounting plate 9 and is fixedly connected to the front end of the bidirectional screw 102. A rotating plate 112 is fixedly connected to the front end of the telescopic sleeve 111. A limiting rod 113 is rotatably mounted on the upper end of the rotating plate 112. The limiting groove 114 is opened at the front end of the mounting plate 9, and the rear end of the limiting rod 113 is slidably connected to the inside of the limiting groove 114. The front end of the rotating limit rod 113 drives the rotating plate 112 to rotate, the rotating plate 112 drives the telescopic sleeve rod 111 to rotate, and the telescopic sleeve rod 111 drives the bidirectional screw rod 102 to rotate, which can flatten the top of the busbar connection. After flattening, the telescopic sleeve rod 111 is retracted by the return spring inside the telescopic sleeve rod 111, so that the rear end of the limit rod 113 is inserted into the limit groove 114, locking the bidirectional screw rod 102, thereby keeping the pressure plate 107 in a pressed state and preventing it from loosening.

[0025] The right-side connector 5 includes a retaining plate 51, which is slidably connected to the right end of the mating plate 4. A groove 52 is provided at the right end of the retaining plate 51, and an elastic plate 53 is provided inside the groove 52. A bolt 54 is threaded to the right end of the elastic plate 53, and the left end of the bolt 54 passes through the right end of the connector 3 and is threaded to the left elastic plate 53. After connecting the copper busbar 2 to the connector 3, the two retaining plates 51 are slidably connected to the opposite sides of the two sets of mating plates 4. Each retaining plate 51 limits the movement of the two mating plates 4. This process ensures a suitable distance between the two main busbar trunking sections 1 and makes the connection between the copper busbar 2 and the connector 3 tighter. Then, the bolts 54 are continuously tightened, and the clamping plate 51 is clamped by two elastic plates 53 to fix the clamping plate 51, the mating plate 4, and the connector 3, thus completing the connection of the two main busbar trunking sections 1. Furthermore, by setting up the elastic plates 53, the dynamic stress generated by the busbar trunking due to thermal expansion and contraction or mechanical vibration can be better absorbed, reducing the risk of metal fatigue in the connection materials and improving the practicality of the device.

[0026] The working principle of this utility model is as follows: In use, the two main busbar trunking bodies 1 are placed on the front and rear sides of the base plate 6 respectively. The connector 3 is placed on the top of the base plate 6 and connected to the copper busbars 2 at both ends. The clamping plate 51 is slidably connected to the docking plate 4. The bolts 54 are tightened. The clamping plate 51, docking plate 4 and connector 3 are fixed by the elastic plate 53 pressing the clamping plate 51. The mounting plate 9 is fixedly installed on the top of the column 8. The limiting rod 113 is rotated. The damping spring 106 is pressed by the transmission plate 105. Then the pressure plate 107 drives the top plate 108 to flatten the top of the connector 3, docking plate 4 and clamping plate 51. The front and rear ends of the pressure plate 107 are used to flatten the two ends of the busbar trunking connection. The bottom support is provided by the base plate 6 and the support plate 7, which improves the deformation resistance of the busbar trunking.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire-resistant busbar trunking with good deformation resistance, characterized in that: The system includes a pair of busbar trunking bodies (1), with copper busbars (2) fixedly installed at the ends of the two busbar trunking bodies (1) that are close to each other. A connector (3) is slidably connected between the two copper busbars (2). A pair of docking plates (4) fixedly connected to the busbar trunking bodies (1) are provided on the left and right sides of the connector (3). A connector (5) is provided on the side of the two sets of docking plates (4) that are far apart from each other. A base plate (6) is slidably connected between the two busbar trunking bodies (1). A support plate (7) is fixedly connected to the front and rear ends of the base plate (6). A column (8) is fixedly connected to the top left and right sides of the base plate (6). An installation plate (9) is fixedly installed on the top of the column (8). A fixing component (10) is provided below the installation plate (9). A locking component (11) is provided at the front end of the installation plate (9).

2. The fire-resistant busbar trunking with good deformation resistance according to claim 1, characterized in that: The fixing component (10) includes a pair of guide grooves (101), which are respectively opened on the top left and right sides of the mounting plate (9). A bidirectional screw (102) is rotatably installed inside the guide groove (101). A pair of movable sleeves (103) are threadedly connected to the surface of the bidirectional screw (102). A connecting rod (104) is hinged to the bottom of each of the two movable sleeves (103). A transmission plate (105) is hinged to the other end of the two connecting rods (104). A pair of damping springs (106) are fixedly installed at the bottom of the transmission plate (105). A pressure plate (107) is fixedly connected to the other end of the two damping springs (106). A top plate (108) is fixedly connected to the bottom of the two pressure plates (107).

3. The fire-resistant busbar trunking with good deformation resistance according to claim 2, characterized in that: The bottom front and rear sides of the pressure plate (107) abut against the top of the two busbar trunking bodies (1), the front and rear ends of the top plate (108) are slidably connected to the side walls of the two busbar trunking bodies (1) that are close to each other, and the bottom of the top plate (108) abuts against the top of the docking plate (4).

4. The fire-resistant busbar trunking with good deformation resistance according to claim 1, characterized in that: The locking component (11) includes a telescopic sleeve (111) and a limiting groove (114). The telescopic sleeve (111) is rotatably mounted on the front end of the mounting plate (9), and the rear end of the telescopic sleeve (111) penetrates the front sidewall of the mounting plate (9) and is fixedly connected to the front end of the bidirectional screw (102). A rotating plate (112) is fixedly connected to the front end of the telescopic sleeve (111). A limiting rod (113) is rotatably mounted on the upper end of the rotating plate (112). The limiting groove (114) is opened at the front end of the mounting plate (9), and the rear end of the limiting rod (113) is slidably connected to the inside of the limiting groove (114).

5. A fire-resistant busbar trunking with good deformation resistance according to claim 1, characterized in that: The connector (5) on the right side includes a retaining plate (51), which is slidably connected to the right end of the mating plate (4). The right end of the retaining plate (51) has a groove (52), and the inside of the groove (52) is provided with an elastic plate (53). The right end of the elastic plate (53) is threaded with a bolt (54), and the left end of the bolt (54) passes through the right end of the connector (3) and is threadedly connected to the left elastic plate (53).

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