Shockproof mechanical fixing support of ring main unit high-voltage metering device

Abstract

The invention solves the problem that an extra manual adjustment or clamping mechanism is needed for assembly between a ring main unit high-voltage metering device and a shockproof support, and relates to the technical field of ring main unit fixing supports, in particular to a shockproof mechanical fixing support of the ring main unit high-voltage metering device. A plurality of damping springs are arranged at the top of the bottom plate, the tops of the damping springs are connected with a bearing plate, a front baffle is formed on the front face of the bearing plate, and when the bearing plate descends by the weight of the ring main unit body, the bearing plate drives the three limiting mechanisms to be matched with the front baffle to clamp the ring main unit body in the four-side mode. And a pressing structure is hinged to the side panel. The gravity of the ring main unit body is finally converted into power for driving the limiting mechanism to cooperate with the front baffle to clamp the four sides of the ring main unit body, the installation process can be effectively simplified, and additional manual adjustment or a complex clamping mechanism is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of ring network cabinet fixing brackets, in particular to a shockproof mechanical fixing bracket for a ring network cabinet high-voltage metering device. Background Art

[0002] Ring main unit (RMU) high-voltage metering devices are devices used to distribute and control electrical energy in power systems and are widely used in distribution networks. Because RMUs are typically installed outdoors or in industrial environments, they are subject to various vibrations and shocks, including ground vibrations, mechanical vibrations during equipment operation, and other dynamic loads in the environment. RMU high-voltage metering devices are high-precision devices containing sophisticated electronic components and mechanical structures. Long-term vibration and shock can cause fatigue damage to these precision components, shortening the device's service life. They can also cause high-voltage components to loosen or shift, increasing the risk of electrical short circuits or arc faults, posing a threat to the safety of the device and personnel.

[0003] Therefore, when installing and fixing the high-voltage metering device of the ring network cabinet, it is necessary to equip it with a corresponding shock-proof fixed bracket base to effectively absorb and alleviate vibrations and impacts from the external environment, and prevent these impacts from affecting the stability of the internal structure of the device.

[0004] Under normal circumstances, the shock-proof fixed bracket base equipped with the high-voltage metering device of the ring main unit usually requires additional manual adjustment or a complex clamping mechanism to achieve a fixed combination of the two after the high-voltage metering device of the ring main unit is placed on the bracket, which increases the workload and time cost of the installers. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a shock-proof mechanical fixing bracket for the high-voltage metering device of the ring network cabinet, so as to solve the problem proposed in the above background technology that the assembly between the high-voltage metering device of the ring network cabinet and the shock-proof bracket requires additional manual adjustment or clamping mechanism.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a shockproof mechanical fixing bracket for a high-voltage metering device of a ring main unit, comprising a base plate, three limit mechanisms hingedly connected to the base plate, a plurality of damping springs provided on the top of the base plate, a bearing plate connected to the tops of the plurality of damping springs, a front baffle formed on the front of the bearing plate, and when the bearing plate is lowered by the weight of the ring main unit, the three limit mechanisms are driven to cooperate with the front baffle to clamp the ring main unit on all four sides;

[0007] The limiting mechanism includes a side panel hinged to the bottom plate, a pressing structure hinged to the side panel, a rebound structure hinged to the side panel, and the rebound structure is slidably connected to the bottom plate, and a through slot is opened on the side panel;

[0008] The two sides and the back of the bearing plate pass through the through slots in the three side panels respectively. Three guide blocks are installed at the bottom of the bearing plate. As the bearing plate descends, the side panels are forced to swing toward one side of the ring network cabinet.

[0009] Preferably, the guide block includes a guide portion, the cross-sectional shape of the guide portion is a right triangle, and the inclined surface thereof is located at the lower side, and the bottom wall of the through groove is in an upwardly protruding semicircular shape.

[0010] Preferably, the guide block further includes a limiting portion, which is integrally mounted on the bottom of the guide portion.

[0011] Preferably, when the top surface of the bearing plate is in contact with the top wall of the through slot, the bottom of the limiting portion is lower than the height of the bottom wall of the through slot, and when the side panel is arranged vertically, its surface is in contact with the side surface of the limiting portion.

[0012] Preferably, the rebound structure includes a collar seat, and the bottom of the collar seat is provided with a telescopic sleeve and a return spring in sequence from the inside to the outside;

[0013] A connecting seat is provided on one side of the bearing plate, and the connecting seat and the collar seat are hinged to each other.

[0014] Preferably, a slide groove is provided on the top of the base plate, an I-shaped block is slidably connected in the slide groove, and the top of the I-shaped block is connected to the bottom of the telescopic sleeve.

[0015] Preferably, the pressing structure includes a steel bar rotatably mounted on the top of the side panel, a plurality of telescopic springs are provided inside the steel bar, and one end of the plurality of telescopic springs is connected to the pressing plate.

[0016] Preferably, the pressure plate is composed of a planar portion connected to the telescopic spring and an inclined portion integrally connected to the top and bottom of the planar portion, and the height of the planar portion is greater than the height of one side of the rigid shift bar.

[0017] By means of the above technical solution, the present invention provides a shockproof mechanical fixing bracket for a high-voltage metering device of a ring main unit, which has at least the following beneficial effects:

[0018] 1. The present invention utilizes the gravity of the ring network cabinet itself and converts it into a downward pushing force generated on the bearing plate at the upper end of the damping spring, driving the bearing plate to drive the three guide blocks to move downward synchronously. In this process, the guide blocks can convert the straight downward pushing force into an oblique downward pressure force, thereby forcing the side panel to swing toward one side of the ring network cabinet. In conjunction with the front baffle, the purpose of clamping and limiting the front, back, left and right sides of the ring network cabinet is finally achieved, thereby effectively ensuring the clamping and fixing effect of the ring network cabinet, avoiding additional manual adjustment or complex clamping mechanism, and being able to automatically adapt to the weight of the ring network cabinet.

[0019] 2. The rectangular frame formed by the three limiting mechanisms and the front baffle of the present invention has a size larger than the length and width of the required ring network cabinet in its initial state, thereby providing fault tolerance space for the subsequent placement of the ring network cabinet, thereby improving the placement flexibility of the ring network cabinet.

[0020] 3. In the present invention, after the ring network cabinet is pulled out from the space formed by the load-bearing plate, the limiting mechanism and the front baffle, the load-bearing plate and the limiting mechanism can automatically return to their original state under the elasticity and reset properties of the damping spring and the reset spring without the need for additional human intervention, thereby ensuring the convenience of using the fixing bracket.

[0021] 4. The present invention utilizes a pressing structure with a telescopic spring in conjunction with a damping spring at the bottom of the load-bearing plate, which can effectively absorb and disperse impacts from vertical and horizontal directions, reducing damage to the device caused by sudden impacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the top plan structure of the present invention;

[0025] Figure 3 Schematic diagram of the swing direction of the limiting mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the position structure of the side panel and the guide block of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the rebound structure of the present invention;

[0028] Figure 6 It is a schematic diagram of the exploded structure of the pressing structure of the present invention.

[0029] In the figure: 1. Base plate; 101. Slide groove; 2. Limiting mechanism; 201. Side panel; 2011. Through groove; 202. Pressing structure; 2021. Rigid strip; 2022. Telescopic spring; 2023. Pressing plate; 203. Connecting seat; 204. Rebound structure; 2041. Ring seat; 2042. Telescopic sleeve; 2043. Reset spring; 2044. I-shaped block; 3. Damping spring; 4. Load-bearing plate; 401. Guide block; 4011. Guide part; 4012. Limiting part; 5. Front baffle; 6. Ring network cabinet. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] Example 1

[0032] See also Figures 1-6 This embodiment proposes a shockproof mechanical fixing bracket for the high-voltage metering device of the ring network cabinet, which can clamp and fix the high-voltage metering device of the ring network cabinet on all four sides without the need for external tools. The fixing bracket mainly consists of a base plate 1 with a number of damping springs 3, three limiting mechanisms 2 hinged on the top of the base plate 1, a bearing plate 4 connected to the top of the damping springs 3, and a front baffle 5 formed on the front of the bearing plate 4, while the ring network cabinet body 6 serves as the fixed object. Among them, the three limiting mechanisms 2 can swing along the hinge of the base plate 1 under the action of external force. On this basis, by placing the ring network cabinet body 6 on the top surface of the bearing plate 4, the bearing plate 4 can be affected by the weight of the ring network cabinet body 6 itself, thereby generating a certain downward pressure on the damping spring 3, causing the damping spring 3 to contract downward, and at the same time the bearing plate 4 itself drops to a certain height.

[0033] Following the above, the limiting mechanism 2 in this embodiment includes a side panel 201 hinged to the base plate 1. A pressing structure 202 is hingedly connected to the side panel 201. A connecting seat 203 is fixedly installed on one side of the side panel 201 near the middle of the load-bearing plate 4. A rebound structure 204 is hingedly connected to the connecting seat 203, and the rebound structure 204 is slidably connected to the base plate 1. A through slot 2011 is formed in the side panel 201. The two sides and back of the load-bearing plate 4 respectively pass through the through slots 2011 in the three side panels 201. Three guide blocks 401 are installed at the bottom of the load-bearing plate 4. As the load-bearing plate 4 descends, the guide blocks 401 also descend, forcing the side panel 201 to swing toward the ring network cabinet 6, ultimately cooperating with the front baffle 5 to clamp the ring network cabinet 6 on all sides. The specific process is as follows: as the load plate 4 descends, the three guide blocks 401 exert an oblique downward pressure on the corresponding side panels 201 along the bottom wall of the through slot 2011, forcing the side panels 201 to swing toward the ring network cabinet 6. When the side panels 201 on either side swing toward each other, they clamp the ring network cabinet 6 on both sides. When the side panel 201 on the rear side swings toward the front, it pushes the ring network cabinet 6 forward, forming a front-to-back clamping force together with the front baffle 5. The combination of these two forces effectively secures the ring network cabinet 6 and prevents it from being displaced by external factors.

[0034] In addition, in this fixing bracket, before the ring network cabinet 6 is placed on the bearing plate 4, the size of the rectangular frame formed between the pressing structure 202 in the three limiting mechanisms 2 and the front baffle 5 is larger than the length and width of the ring network cabinet 6 to be placed. Therefore, when the ring network cabinet 6 is subsequently combined with the fixing bracket, the fault tolerance space required for placement can be provided, thereby improving the placement flexibility of the ring network cabinet 6.

[0035] When the fixing bracket is assembled and fixed to the ring main unit 6, the weight of the ring main unit 6 is used alone to force the load plate 4 to descend. This, in conjunction with the guide block 401 and the related structures in the limiting mechanism 2, translates into a force that clamps the front, rear, left, and right sides of the ring main unit 6 through the three limiting mechanisms 2 and the front baffle 5, thus automatically clamping the ring main unit 6. This process eliminates the need for additional manual adjustments or complex clamping mechanisms, and automatically adapts to the weight of the ring main unit, ensuring a stable fixation of the device to the bracket. This also effectively simplifies the installation process and improves efficiency.

[0036] The damping spring 3 disposed between the load plate 4 and the bottom plate 1, and the elastic pressure structure 202 hinged on the side panel 201, effectively absorb and disperse vibration, thereby reducing the impact and vibration on the electrical components within the ring main unit 6 and helping to increase their service life. Compared to traditional rigid fixing structures, the fixing bracket in this embodiment can better adapt to the various sizes of ring main units 6 and vibration conditions in actual use.

[0037] Example 2

[0038] like Figure 4 and Figure 5 As shown, the guide block 401 consists of a guide portion 4011 and a stop portion 4012 mounted at the bottom of the guide portion 4011. The cross-sectional shape of the guide portion 4011 is a right triangle, with its inclined surface located at the lower side. The bottom wall of the through slot 2011 is in the shape of an upwardly protruding semicircle. As the support plate 4 drives the guide block 401 downward, the inclined surface of the guide portion 4011 exerts an oblique downward pressure on the bottom wall of the through slot 2011, thereby forcing the side panel 201 to generate a rotational torque, causing it to swing about the hinge point toward the ring main cabinet 6. By designing the bottom wall of the through slot 2011 in the upwardly protruding semicircular shape, fluctuations in friction can be reduced, preventing unstable or sudden swinging caused by friction changes, and making the swinging process of the entire side panel 201 smoother.

[0039] Example 3

[0040] like Figure 1 、 Figure 3 and Figure 4 As shown, when the top surface of the supporting plate 4 is in contact with the top wall of the through groove 2011, the bottom of the limiting portion 4012 is lower than the height of the bottom wall of the through groove 2011, and when the side panel 201 is arranged vertically, its surface is in contact with the side of the limiting portion 4012, which is beneficial to limit the side panel 201 and prevent it from swinging toward the side away from the supporting plate 4.

[0041] Example 4

[0042] like Figure 3 and Figure 5As shown, the rebound structure 204 includes a collar seat 2041 hinged on the connecting seat 203. The bottom of the collar seat 2041 is provided with a telescopic sleeve 2042 and a return spring 2043 in sequence from the inside out. The top of the base plate 1 is provided with a slide groove 101. An I-shaped block 2044 is slidably connected in the slide groove 101. The top of the I-shaped block 2044 is connected to the bottom of the telescopic sleeve 2042. Continuing with the above-mentioned embodiment 1, when the bearing plate 4 moves downward together with the guide block 401 under the action of the gravity of the ring network cabinet 6 itself and controls the side panel 201 to swing in a set direction, the rebound structure 204 will be subjected to the downward extrusion force generated by the connecting seat 203, which will drive the rebound structure 204 to shrink its own length and slide inward along the slide groove 101 from the edge of the base plate 1. On the contrary, when the ring network cabinet 6 is detached from the bearing plate 4, the extrusion force on the rebound structure 204 is cancelled, and its reset spring 2043 controls itself and the telescopic sleeve 2042 to restore to its original state under the action of its own elasticity and reset property, and generates an upward pushing force on the connecting seat 203, driving the side panel 201 to swing around the hinge point toward the side away from the ring network cabinet 6, and at the same time giving the I-shaped block 2044 to slide outward along the slide groove 101.

[0043] It can be seen that when the ring network cabinet 6 is detached from the fixed bracket, the side panels 201 in the three limiting mechanisms 2 can autonomously restore to their original angle state, and the supporting plate 4 also restores to its original height position, ensuring that the size of the rectangular frame formed by the subsequent three side panels 201 and the front baffle 5 is larger than the length and width of the ring network cabinet 6 to be fixed.

[0044] Example 5

[0045] like Figure 5 and Figure 6 As shown, the pressure structure 202 includes a rigid bar 2021 that is rotatably mounted on the top of the side panel 201. Several telescopic springs 2022 are located within the rigid bar 2021, and one end of each of the telescopic springs 2022 is connected to a pressure plate 2023. The use of the telescopic springs 2022 allows for a certain amount of relative displacement between the pressure plate 2023 and the rigid bar 2021. This disperses the impact force between the pressure plate 2023 and the rigid bar 2021, reducing damage caused by collisions or vibrations. This pressure structure 202 with telescopic springs 2022, used in conjunction with the damping spring 3 at the bottom of the support plate 4, effectively absorbs and disperses impacts from both vertical and horizontal directions, reducing damage to the device from sudden impacts.

[0046] The rigid shift bar 2021 is rotatably connected to the side panel 201, which ensures that the pressing structure 202 can always be adjusted to a vertical arrangement state when the side panel 201 is arranged vertically or tilted, thereby ensuring that one side of the subsequent pressing plate 2023 can effectively fit with the side wall of the ring network cabinet 6.

[0047] The pressure plate 2023 consists of a flat portion connected to the telescopic spring 2022 and an inclined portion integrally connected to the top and bottom of the flat portion. The flat portion is taller than one side of the rigid lever 2021. When the ring main unit 6 is placed on the support plate 4, if the bottom edge of the ring main unit 6 contacts the inclined portion, it can slide down along the upper surface of the inclined portion to lower the ring main unit 6.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. The shockproof mechanical fixing bracket of the high-voltage metering device of the ring main unit is characterized by: The invention comprises a bottom plate (1), three limiting mechanisms (2) are hingedly connected to the bottom plate (1), a plurality of damping springs (3) are provided on the top of the bottom plate (1), a bearing plate (4) is connected to the top of the plurality of damping springs (3), a front baffle (5) is formed on the front of the bearing plate (4), and when the bearing plate (4) is lowered by the weight of the ring network cabinet (6), the three limiting mechanisms (2) are driven to cooperate with the front baffle (5) to clamp the ring network cabinet (6) on four sides; The limiting mechanism (2) comprises a side panel (201) hinged to the bottom plate (1), a pressing structure (202) hinged to the side panel (201), a rebound structure (204) hinged to the side panel (201), and the rebound structure (204) is slidably connected to the bottom plate (1), and a through slot (2011) is provided on the side panel (201); The two sides and the back of the bearing plate (4) respectively pass through the through slots (2011) in the three side panels (201), and three guide blocks (401) are installed at the bottom of the bearing plate (4). As the bearing plate (4) descends in height, the side panels (201) are forced to swing toward one side of the ring network cabinet (6).

2. The shockproof mechanical fixing bracket for the high-voltage metering device of the ring main unit according to claim 1, characterized in that: The guide block (401) comprises a guide portion (4011), the cross-sectional shape of the guide portion (4011) is a right triangle, and the inclined surface thereof is located at the lower side, and the bottom wall of the through groove (2011) is in an upwardly protruding semicircular shape.

3. The shockproof mechanical fixing bracket for the high-voltage metering device of the ring main unit according to claim 1, characterized in that: The guide block (401) further comprises a limiting portion (4012), and the limiting portion (4012) is integrally mounted on the bottom of the guide portion (4011).

4. The shockproof mechanical fixing bracket for the high-voltage metering device of the ring main unit according to claim 1, characterized in that: When the top surface of the bearing plate (4) is in contact with the top wall of the through slot (2011), the bottom of the limiting portion (4012) is lower than the height of the bottom wall of the through slot (2011), and when the side panel (201) is arranged vertically, its surface is in contact with the side surface of the limiting portion (4012).

5. The shockproof mechanical fixing bracket for the high-voltage metering device of the ring main unit according to claim 1, characterized in that: The rebound structure (204) comprises a collar seat (2041), and the bottom of the collar seat (2041) is provided with a telescopic sleeve (2042) and a return spring (2043) in sequence from the inside to the outside; A connecting seat (203) is provided on one side of the bearing plate (4), and the connecting seat (203) and the collar seat (2041) are hinged to each other.

6. The shockproof mechanical fixing bracket for the high-voltage metering device of the ring main unit according to claim 1, characterized in that: A sliding groove (101) is provided on the top of the base plate (1), an I-shaped block (2044) is slidably connected in the sliding groove (101), and the top of the I-shaped block (2044) is connected to the bottom of the telescopic sleeve (2042).

7. The shockproof mechanical fixing bracket for the high-voltage metering device of the ring main unit according to claim 1, characterized in that: The pressing structure (202) includes a steel bar (2021) that is rotatably mounted on the top of the side panel (201), and a plurality of telescopic springs (2022) are provided inside the steel bar (2021). One end of the plurality of telescopic springs (2022) is connected to a pressing plate (2023).

8. The shockproof mechanical fixing bracket for the high-voltage metering device of the ring main unit according to claim 7, characterized in that: The pressure plate (2023) is composed of a planar portion connected to the telescopic spring (2022) and an inclined portion integrally connected to the top and bottom of the planar portion, and the height of the planar portion is greater than the height of one side of the rigid shift bar (2021).

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