Anti-seismic bus bridge for power distribution cabinet

Abstract

The utility model provides a kind of anti-seismic bus duct for switch board, including connecting plate and pressing plate, multiple U-shaped through slots are set in connecting plate front side, arc-shaped bearing plate is equipped in each through slot, multiple connecting slots are set in the place between each adjacent two through slots on the upper surface of connecting plate, connecting slot and the through slot of two sides are connected, adjacent two bearing plates are movably connected together by the connecting assembly in connecting slot, first elastic member is equipped between the bottom of each bearing plate and corresponding through slot, pressing plate is located in the upper side of connecting plate, and the left and right sides of pressing plate are connected together by multiple second elastic members between the edge and connecting plate.The utility model has the beneficial effects that: by setting connecting assembly between adjacent two supporting plates, the movable connection between adjacent two supporting plates is realized, first elastic member located at the bottom of supporting plate is set in through slot, and second elastic member is set between pressing plate and connecting plate, so that the anti-seismic effect of bus duct is good, and the safety in use is higher.

Description

Technical Field

[0001] This utility model belongs to the field of busbar cable tray technology, and in particular relates to an earthquake-resistant busbar cable tray for distribution cabinets. Background Technology

[0002] Busbar trays are used to support and protect cables. In distribution cabinets, trough-type busbar trays are commonly used. Their structure includes connecting plates for carrying and supporting cables, and pressure plates for limiting cable movement. The pressure plates and connecting plates, as well as the connecting plates and the inner wall of the distribution cabinet, are rigidly connected together by mounting components. This type of busbar tray structure is detrimental to the stability of cable installations within the distribution cabinet when subjected to external vibrations and impacts. Although seismic-resistant busbar trays exist, they cannot satisfy the dual advantage of good seismic resistance and structural simplicity. Utility Model Content

[0003] In view of this, the present invention aims to overcome the shortcomings of the above-mentioned problems in the prior art and proposes an anti-vibration busbar tray for power distribution cabinets.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] An anti-vibration busbar tray for a power distribution cabinet includes a connecting plate and a pressure plate. The connecting plate has multiple U-shaped through slots arranged side by side on its front side, and the through slots are open on the upper surface of the connecting plate. Each through slot has an arc-shaped support plate. Multiple connecting slots are opened on the upper surface of the connecting plate between each pair of adjacent through slots, and the connecting slots are connected to the through slots on both sides. Adjacent support plates are movably connected together by connecting components located in the connecting slots. Each support plate has a first elastic element between its bottom and the corresponding through slot. The pressure plate is located on the upper side of the connecting plate, and the left and right edges of the pressure plate are connected to the connecting plate by multiple second elastic elements.

[0006] Furthermore, the connecting assembly includes a first connecting block and a second connecting block. The first connecting blocks are staggered on the upper side of the second connecting blocks. The ends of the first connecting blocks away from the second connecting blocks and the ends of the second connecting blocks away from the first connecting blocks are respectively horizontally fixed to the outer walls of two adjacent bearing plates. A strip groove is formed on the first connecting block in the left-right direction. A vertically arranged connecting post is rotatably connected to the upper surface of the second connecting block. The top of the connecting post passes through the strip groove and is fixed to a limit block. A connecting spring is sleeved on the connecting post, and the connecting spring is located between the first connecting block and the limit block.

[0007] Furthermore, the first elastic element is a spring, and multiple limiting grooves are provided at the bottom of each through groove. The central axis of the limiting groove is set perpendicular to the bottom of the through groove. Each limiting groove is provided with a first elastic element, and the top end of the first elastic element extends out of the limiting groove and contacts the bearing plate.

[0008] Furthermore, the first elastic element is an arc-shaped rubber pad, and the second elastic element has multiple through holes evenly opened in the arc surface. The first elastic element is bonded and fixed to the bottom of the through groove.

[0009] Furthermore, the second elastic element is a spring. Multiple first through holes are evenly opened on the left and right edges of the pressure plate. Connecting edges are horizontally fixed outward on the left and right side walls of the connecting plate. A second through hole is opened on the connecting edge corresponding to each first through hole. A T-shaped connecting pin is movably connected between each first through hole and the second through hole. The bottom of the connecting pin passes through the second through hole and is screwed with a nut located on the lower side of the connecting edge. A second elastic element is sleeved on the connecting pin. The second elastic element is located between the pressure plate and the connecting edge and is in a compressed state. There is a gap between the bottom of the pressure plate and the upper side of the connecting plate. A strip-shaped limiting part is provided on the bottom of the pressure plate corresponding to each through groove. The bottom of the limiting part is recessed upward with an arc-shaped groove. The lower part of the limiting part is inserted into the corresponding through groove.

[0010] Furthermore, rubber gaskets are adhered and fixed to the surface of the connecting plate.

[0011] Furthermore, multiple mounting ears are fixed to both sides of the connecting plate.

[0012] Furthermore, clearance grooves are provided at the corresponding mounting ears on both the left and right sides of the pressure plate and the connecting edge.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] The shock-resistant busbar cable tray for distribution cabinets described in this utility model connects two adjacent load-bearing plates together via a connecting component located in a connecting groove. The connecting groove limits the position of the connecting component, thereby limiting the load-bearing plates and enabling their installation within the groove. When subjected to external vibrations, adjacent load-bearing plates can move relative to each other, reducing the impact on other load-bearing plates. Furthermore, because the bottom of the load-bearing plate is equipped with a first elastic element, when the load-bearing plate shakes, the first elastic element deforms, thereby providing a certain degree of shock absorption. This effectively improves the shock resistance of the busbar cable tray, enhances its safety, and the structure of this busbar cable tray is relatively simple, making it easy to assemble and disassemble. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0016] Figure 1 This is a schematic diagram of the earthquake-resistant busbar cable tray structure for the distribution cabinet as described in Embodiment 1 of this utility model;

[0017] Figure 2This is a schematic diagram of the connection structure between the connecting plate and the bearing plate as described in Embodiment 1 of this utility model;

[0018] Figure 3 This is a schematic diagram of the pressure plate structure described in Embodiment 1 of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the support plate and the connecting assembly as described in Embodiment 1 of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the bearing plate and the connecting plate when the first elastic element is a spring, as described in Embodiment 1 of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the first elastic element as a rubber pad in Embodiment 2 of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Connecting plate; 101. Through groove; 102. Connecting groove; 103. Connecting edge; 104. Mounting ear; 2. Bearing plate; 3. Pressure plate; 301. Limiting part; 4. Second elastic element; 5. Connecting pin; 6. Nut; 7. First connecting block; 701. Strip groove; 8. Second connecting block; 9. Connecting column; 901. Limiting block; 10. Connecting spring; 11. Clearance groove; 12. Rubber gasket; 13. First elastic element; 1301. Through hole. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] 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 mechanical connection or an electrical 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.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] like Figures 1 to 5 As shown, a seismic-resistant busbar cable tray for a power distribution cabinet includes a connecting plate 1 and a pressure plate 3. Multiple U-shaped through slots 101 are arranged side-by-side on the front side of the connecting plate 1, with each slot 101 opening on the upper surface of the connecting plate 1. Each through slot 101 contains an arc-shaped support plate 2. Multiple connecting slots 102 are provided on the upper surface of the connecting plate 1 between each pair of adjacent through slots 101, and these connecting slots 102 are connected to the through slots 101 on both sides. Adjacent support plates 2 are movably connected together by connecting components located within the connecting slots 102. A first elastic element 13 is provided between the bottom of each support plate 2 and the corresponding through slot 101. The pressure plate 3 is located on the upper side of the connecting plate 1, and its left and right edges are connected to the connecting plate 1 by multiple second elastic elements 4. In this embodiment, during use, the connecting plate 1 is fixed to the inner wall of the distribution cabinet, and the busbar is set in the through groove 101 and located between the bearing plate 2 and the pressure plate 3. Two adjacent bearing plates 2 are movably connected together by a connecting component located in the connecting groove 102. The connecting groove 102 limits the connecting component, thereby limiting the bearing plate 2, so that the bearing plate 2 can be installed in the through groove 101. When subjected to external vibration, the adjacent bearing plates 2 can move relative to each other, reducing the impact on other bearing plates 2. Since the bearing plate 2 is provided with a first elastic element 13 at the bottom, when the bearing plate 2 shakes, the first elastic element 13 deforms, thereby providing a certain degree of shock absorption for the bearing plate 2.

[0030] The connecting assembly includes a first connecting block 7 and a second connecting block 8. The first connecting block 7 is staggered on the upper side of the second connecting block 8. The ends of the first connecting block 7 and the second connecting block 8 that are away from the second connecting block 8 are horizontally welded and fixed to the outer walls of two adjacent bearing plates 2. A strip groove 701 arranged in the left-right direction is opened on the first connecting block 7. A vertically arranged connecting post 9 is rotatably connected to the upper surface of the second connecting block 8. The top end of the connecting post 9 passes through the strip groove 701 and is fixed to a limit block 901. A connecting spring 10 is sleeved on the connecting post 9, and the connecting spring 10 is located between the first connecting block 7 and the limit block 901. In this embodiment, the lower part of the connecting post 9 is screwed onto the second connecting block 8. During installation, after the connecting post 9 is fitted with the connecting spring 10, it passes downward from the upper side of the strip groove 701 and is screwed into the threaded hole on the upper side of the second connecting block 8. The connecting post 9 is disassembled and assembled through the threaded connection. When subjected to vibration, the two adjacent bearing plates 2 shake. The two adjacent bearing plates 2 may have horizontal relative displacement at the strip groove 701, or they may have longitudinal relative displacement on the connecting post 9, or even both situations may occur simultaneously. When horizontal relative displacement occurs, the bearing plate 2 moves horizontally in the through groove 101. During the movement, the contact point between the bearing plate 2 and the first elastic element 13 changes, and it can be subjected to the elastic force of the first elastic element 13 to perform a certain shock absorption effect. When longitudinal relative displacement occurs, the connecting spring 10 is squeezed by the first connecting block 7 and the limiting block 901, deforms and then resets, consuming part of the impact force brought by the vibration.

[0031] The first elastic element 13 is a spring. Multiple limiting grooves are provided at the bottom of each through groove 101. The central axis of each limiting groove is perpendicular to the bottom of the through groove 101. Each limiting groove contains a first elastic element 13, with its top end extending through the limiting groove and contacting the support plate 2. In this embodiment, the limiting grooves can be vertically positioned at the bottom of the through groove 101, or they can be symmetrically arranged at the bottom of the through groove 101, tilted to the left and right.

[0032] The second elastic element 4 is a spring. Multiple first through holes are evenly distributed along the left and right edges of the pressure plate 3. Connecting edges 103 are horizontally fixed outwards on the left and right side walls of the connecting plate 1. A second through hole is provided on the connecting edge 103 corresponding to each first through hole. A T-shaped connecting pin 5 is movably connected between each first and second through hole. The bottom of the connecting pin 5 protrudes through the second through hole and is screwed with a nut 6 located below the connecting edge 103. The second elastic element 4 is sleeved on the connecting pin 5, and is located between the pressure plate 3 and the connecting edge 103 and is in a compressed state. A gap exists between the bottom of the pressure plate 3 and the upper side of the connecting plate 1. A strip-shaped limiting part 301 is provided at the bottom of the pressure plate 3 corresponding to each through slot 101, and the bottom of the limiting part 301 is recessed upwards with an arc-shaped groove. The lower part of the limiting part 301 is inserted into the corresponding through slot 101. In this embodiment, the cross-sectional size of the connecting pin 5 is smaller than the size of the first and second through holes, facilitating the movement of the connecting pin 5 within the first and second through holes. In this embodiment, a gap is provided between the bottom of the pressure plate 3 and the upper side of the connecting plate 1 to ensure that when relative displacement occurs between the pressure plate 3 and the connecting plate 1 due to vibration, the pressure plate 3 can be reset. A portion of the impact force is absorbed by the second elastic element 4. In addition, the lower part of the limiting part 301 is inserted into the corresponding through groove 101 to limit the pressure plate 3. At the same time, the arc-shaped groove cooperates with the bearing plate 2 to limit the installation of the busbar. In this embodiment, the pressure plate 3 and the limiting part 301 are integrally formed structures.

[0033] A rubber gasket 12 is bonded and fixed to the upper surface of the connecting plate 1, which further plays a shock-absorbing role when the pressure plate 3 and the connecting plate 1 collide.

[0034] Multiple mounting ears 104 are fixed to both sides of the connecting plate 1. The distribution cabinet is fixed to the inner wall of the distribution cabinet by screws and mounting ears 104.

[0035] The pressure plate 3 has clearance grooves 11 on both the left and right sides corresponding to the mounting ears 104, which facilitates the installation and removal of screws in the mounting ears 104.

[0036] The working process of this embodiment is as follows:

[0037] When the shock-resistant busbar cable tray of the distribution cabinet is subjected to an external impact, the bearing plate 2 vibrates and shakes. The deformation of the spring, which is the first elastic element 13, weakens the impact on the bearing plate 2. At the same time, the first connecting block 7 and the second connecting block 8 connected on two adjacent bearing plates 2 undergo lateral and longitudinal relative displacement. At this time, the deformation of the connecting spring 10 and the deformation of the first elastic element 13 jointly consume the impact force on the bearing plate 2. Furthermore, when the pressure plate 3 and the connecting plate 1 undergo relative displacement under the impact of the external force, the second elastic element 4 can be reset due to its deformation. Therefore, a part of the impact force can be consumed between the pressure plate 3 and the connecting plate 1 through the second elastic element 4.

[0038] Example 2

[0039] A seismic-resistant busbar tray for a distribution cabinet, with other features the same as in Embodiment 1, such as... Figure 6 As shown, the difference lies in that the first elastic element 13 is an arc-shaped rubber pad, and the second elastic element 4 has multiple through holes 1301 evenly distributed within the arc surface. The first elastic element 13 is bonded and fixed to the bottom of the through groove 101. In this embodiment, the through holes 1301 on the rubber pad can effectively increase the deformation of the rubber pad, thereby better achieving the shock absorption effect.

[0040] The working process of Embodiment 2 is the same as that of Embodiment 1, except that the shock absorption is achieved by the first elastic element 13. The first elastic element 13 in Embodiment 2 is a rubber pad structure with a through hole 1301. When subjected to impact force, the first elastic element 13 can effectively increase the degree of deformation, thereby playing a better role in shock absorption.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seismic-resistant busbar tray for a distribution cabinet, characterized in that: The device includes a connecting plate and a pressure plate. The front side of the connecting plate has multiple U-shaped through slots arranged side by side, and the through slots are open on the upper surface of the connecting plate. Each through slot has an arc-shaped support plate. On the upper surface of the connecting plate, there are multiple connecting slots between each pair of adjacent through slots, and the connecting slots are connected to the through slots on both sides. Adjacent support plates are movably connected together by connecting components located in the connecting slots. Each support plate has a first elastic element between its bottom and the corresponding through slot. The pressure plate is located on the upper side of the connecting plate, and the left and right edges of the pressure plate are connected to the connecting plate by multiple second elastic elements.

2. The seismic-resistant busbar tray for a distribution cabinet according to claim 1, characterized in that: The connecting assembly includes a first connecting block and a second connecting block. The first connecting blocks are staggered on the upper side of the second connecting blocks. The ends of the first connecting blocks away from the second connecting blocks and the ends of the second connecting blocks away from the first connecting blocks are respectively horizontally fixed to the outer walls of two adjacent bearing plates. A strip groove is formed on the first connecting block in the left-right direction. A vertically arranged connecting post is rotatably connected to the upper surface of the second connecting block. The top of the connecting post passes through the strip groove and is fixed to a limit block. A connecting spring is sleeved on the connecting post, and the connecting spring is located between the first connecting block and the limit block.

3. The seismic-resistant busbar tray for a distribution cabinet according to claim 1, characterized in that: The first elastic element is a spring. Multiple limiting grooves are provided at the bottom of each through groove. The central axis of the limiting groove is set perpendicular to the bottom of the through groove. The first elastic element is provided in each limiting groove. The top of the first elastic element extends out of the limiting groove and contacts the bearing plate.

4. The seismic-resistant busbar tray for a distribution cabinet according to claim 1, characterized in that: The first elastic element is an arc-shaped rubber pad, and the second elastic element has multiple through holes evenly opened in the arc surface. The first elastic element is bonded and fixed to the bottom of the through groove.

5. The seismic-resistant busbar tray for a distribution cabinet according to claim 1, characterized in that: The second elastic element is a spring. Multiple first through holes are evenly opened on the left and right edges of the pressure plate. Connecting edges are horizontally fixed outward on the left and right side walls of the connecting plate. A second through hole is opened on the connecting edge corresponding to each first through hole. A T-shaped connecting pin is movably connected between each first through hole and the second through hole. The bottom of the connecting pin passes through the second through hole and is screwed with a nut located on the lower side of the connecting edge. A second elastic element is sleeved on the connecting pin. The second elastic element is located between the pressure plate and the connecting edge and is in a compressed state. There is a gap between the bottom of the pressure plate and the upper side of the connecting plate. A strip-shaped limiting part is provided on the bottom of the pressure plate corresponding to each through groove. The bottom of the limiting part is recessed upward with an arc-shaped groove. The lower part of the limiting part is inserted into the corresponding through groove.

6. The seismic-resistant busbar tray for a distribution cabinet according to claim 1, characterized in that: A rubber gasket is glued and fixed to the surface of the connecting plate.

7. The seismic-resistant busbar tray for a distribution cabinet according to claim 5, characterized in that: Multiple mounting ears are fixed to both sides of the connecting plate.

8. The seismic-resistant busbar tray for a distribution cabinet according to claim 7, characterized in that: Both the pressure plate and the connecting edge have clearance grooves at the corresponding mounting ears on the left and right sides.

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