Grounding device for backup power systems

CN122968692APending Publication Date: 2026-10-23STATE GRID SHANDONG ELECTRIC POWER CO WEISHAN POWER SUPPLY CO
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Patent Information

Application Number
CN202610793633.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-03
Publication Date
2026-10-23

AI Technical Summary

Technical Problem

[0005]1、螺栓压接依赖操作扭矩维持接触压力,在长期运行中,由于温度循环、机械振动或导线蠕变,螺栓极易发生松动,导致接触压力下降,接触电阻升高,进而引起局部发热,严重时甚至烧毁连接点;

Benefits of technology

[0024](1)本发明中,通过插销定位机构的使用,由两个定位偏心轮与对接槽对接,保证金属插销在金属壳内的定位,工具控制外接槽柱旋转,驱动传动齿轮组转动,进而带动两侧随动齿轮及定位偏心轮同步相向或背向转动,使定位偏心轮嵌入或退出金属插销的对接槽,对金属插销施加持续的径向压力,使接地线槽内的导线与金属壳之间保持紧密、稳定的接触面,避免螺栓压接式结构因松动导致的接触电阻升高和发热问题,并且,两个定位偏心轮保证金属插销在插腔内的对中性,使锁紧力均匀分布,防止因一侧先锁紧、另一侧未锁紧导致的插销偏斜或局部应力集中。

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Abstract

The application discloses a grounding device for a standby power system and belongs to the technical field of power systems, which comprises a metal shell, a metal plug, a plug positioning mechanism and a limiting mechanism. The grounding device for the standby power system is characterized in that two positioning eccentric wheels are connected with the butt joint groove through the use of the plug positioning mechanism, the positioning of the metal plug in the metal shell is ensured, the rotation of the external groove column is controlled by a tool, the driving gear set is driven to rotate, then the two side follow-up gears and the positioning eccentric wheels are synchronously rotated towards or away from each other, the positioning eccentric wheels are embedded into or withdrawn from the butt joint groove of the metal plug, the metal plug is continuously subjected to radial pressure, the contact surface between the wire in the grounding wire groove and the metal shell is kept tight and stable, the problems of the increase of the contact resistance and heating caused by the loosening of the bolt pressure connection type structure are avoided, and the two positioning eccentric wheels ensure the centration of the metal plug in the plug cavity, so that the locking force is uniformly distributed.
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Description

Technical Field

[0001] This invention belongs to the field of power system technology, specifically a grounding device for a backup power system. Background Technology

[0002] In backup power systems, reliable and low-impedance grounding connections are crucial for ensuring safe equipment operation, preventing electric shock accidents, and effectively discharging fault currents. Common grounding connection methods include bolt-pressed clamps, wedge-type connectors, and traditional plug-in grounding stakes. Currently, most widely used grounding wire connection devices employ bolt-pressed structures, which involve pressing the grounding wire onto the grounding terminal or grounding busbar by rotating the bolt.

[0003] The authorized publication number "CN207149794U" describes "a grounding device for grounding wires in power systems, comprising a metal shell, a switch plug, a plug groove, a metal pin, a grounding wire groove, a rotating rod, a connecting ring, a raised button, a button groove, and a spring. The metal shell has plug grooves on the left and right sides below, and a switch plug is installed in the plug groove. A metal pin is installed inside the metal shell. A grounding wire groove is installed above the middle front part of the metal pin. The lower part of the grounding wire groove is connected to a connecting ring through a rotating rod. The metal pin has button grooves on the left and right sides below, and a raised button is installed in the button groove. The raised button is connected to the inside of the button groove through a spring."

[0004] The aforementioned patent is easy to install and disassemble. Its raised button combined with the switch plug facilitates the separation of the metal shell and metal pin device, making operation convenient. The rotatable connecting ring and grounding wire groove prevent damage to the grounding wire port, making it highly practical. However, the aforementioned patent structure has the following shortcomings:

[0005] 1. Bolt crimping relies on operating torque to maintain contact pressure. During long-term operation, due to temperature cycling, mechanical vibration or wire creep, bolts are very prone to loosening, resulting in a decrease in contact pressure and an increase in contact resistance, which in turn causes local heating and may even burn out the connection point in severe cases.

[0006] 2. In environments where backup power systems are frequently moved, transported, or subjected to vibration during operation, ordinary plug-in or bolted connections cannot effectively resist axial pulling, posing a risk of the grounding wire accidentally coming loose, causing grounding circuit interruption and creating safety hazards.

[0007] Therefore, a grounding device for backup power systems is proposed to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to: utilize a pin positioning mechanism, in which two positioning eccentric wheels engage with the mating groove to ensure the positioning of the metal pin within the metal shell. A tool controls the rotation of the external groove column, driving the transmission gear set to rotate, which in turn drives the follower gears on both sides and the positioning eccentric wheels to rotate synchronously in opposite directions. This causes the positioning eccentric wheels to engage or disengage from the mating groove of the metal pin, applying continuous radial pressure to the metal pin. This ensures a tight and stable contact surface between the wire in the grounding groove and the metal shell, avoiding the increased contact resistance and overheating problems caused by loosening in bolt-fitted structures. Furthermore, the two positioning eccentric wheels ensure the metal pin's alignment within the insertion cavity... The neutral design ensures even distribution of locking force, preventing pin misalignment or localized stress concentration caused by one side locking first and the other not locking. Through the use of the limiting mechanism, the continuous pressure of the top spring automatically presses the mating teeth into the grooves of the follower gear and transmission gear after the positioning eccentric wheel is in place, achieving axial limiting and locking the reverse path of the eccentric wheel. Even under significant external pulling force or continuous vibration, the metal pin will not come out, ensuring uninterrupted grounding connection under harsh working conditions. The damping rod effectively absorbs external vibrations and the spring's own minor vibrations, preventing unnecessary jumping of the positioning strip due to vibration, further ensuring the reliability of gear meshing.

[0009] The technical solution adopted in this invention is as follows: A grounding device for a backup power system, comprising a metal shell, a metal pin, a pin positioning mechanism, and a limiting mechanism:

[0010] The metal shell has an insertion cavity;

[0011] The metal pin is movably inserted into the cavity, and a grounding wire groove is provided on one side of the outer surface of the metal pin.

[0012] The pin positioning mechanism includes a control component, positioning eccentric wheels, and mating grooves. Positioning cavities are provided on both sides of the inner wall of the insertion cavity near the bottom. There are two positioning eccentric wheels, each of which is rotatably connected to each positioning cavity. There are two mating grooves, which are respectively opened on the bottom sides of the outer surface of the metal pin. Each positioning eccentric wheel is installed in each mating groove. The control component is located inside a metal shell and is connected to the two positioning eccentric wheels.

[0013] The limiting mechanism includes a top positioning component, a control positioning component, a positioning bar, and mating teeth. The mating teeth are slidably connected to the drive cavity, and there are multiple mating teeth. The multiple mating teeth are all fixedly connected to the bottom of the positioning bar at equal intervals. The top positioning component is located in the drive cavity and is connected to the positioning bar. The control positioning component is located in the metal shell and is connected to the top positioning component.

[0014] The control component includes a follower assembly, transmission gears, and an external slotted column. A drive cavity is provided on one side of the metal shell. There are two transmission gears, both of which are rotatably connected to the bottom of the drive cavity and mesh with each other. The external slotted column is fixedly connected to one of the transmission gears. The follower assembly is located in the drive cavity and is connected to two positioning eccentric wheels and two transmission gears.

[0015] The follower component is a follower gear, and there are two follower gears. Each follower gear is fixedly connected to one end of each positioning eccentric wheel, and the two follower gears mesh with the two transmission gears respectively.

[0016] The top position component includes a force equalization component, a damping component, and a top position spring. The force equalization component is located inside the drive cavity. Multiple top position springs are provided, and the multiple top position springs are equidistantly fixedly connected to the top of the drive cavity. The damping component is located inside the drive cavity and is connected to the force equalization component.

[0017] The force equalization component includes an adjustment plate and connecting columns. The adjustment plate is slidably connected to the drive cavity. Multiple connecting columns are provided, and the multiple connecting columns are fixedly connected to the bottom of the adjustment plate at equal intervals. The multiple connecting columns are also fixedly connected to the positioning strip.

[0018] The damping component is a damping rod, and there are multiple damping rods. The multiple damping rods are all fixedly connected at equal intervals to the top of the drive cavity, and one end of each of the multiple damping rods is fixedly connected to the adjustment plate.

[0019] The positioning control component includes a tensioning assembly, a limiting assembly, a pressing chamber, and a pressing strip. The tensioning assembly is located inside a metal shell and is connected to the adjusting plate. The pressing chamber is located inside the metal shell, and the pressing strip is movably connected to the pressing chamber. The limiting assembly is located on the pressing strip and is connected to the tensioning assembly.

[0020] The tensioning assembly includes guide grooves and pull ropes. There are two guide grooves, which are respectively opened on both sides of the metal shell. The two ends of the pull rope are movably connected to the two guide grooves, and the two ends of the pull rope are respectively fixedly connected to the two ends of the adjustment plate.

[0021] The limiting component includes a limiting strip and a slot. The limiting strip is fixedly connected to the bottom of the pressing strip, and the slot is opened at the bottom of the limiting strip and is connected to the pull rope.

[0022] The drive cavity is fixedly connected to a cavity limiting plate near the top, and multiple connecting columns are movably inserted into the cavity limiting plate.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] (1) In this invention, by using the pin positioning mechanism, two positioning eccentric wheels are connected to the docking groove to ensure the positioning of the metal pin in the metal shell. The tool controls the rotation of the external groove column, drives the transmission gear set to rotate, and then drives the follower gears on both sides and the positioning eccentric wheels to rotate synchronously in opposite directions, so that the positioning eccentric wheels are inserted into or out of the docking groove of the metal pin, and apply continuous radial pressure to the metal pin, so that the wire in the grounding groove and the metal shell maintain a tight and stable contact surface, avoiding the problem of increased contact resistance and heat generation caused by loosening of the bolt pressing structure. In addition, the two positioning eccentric wheels ensure the centering of the metal pin in the insertion cavity, so that the locking force is evenly distributed, and prevents the pin from being skewed or local stress concentration caused by one side being locked first and the other side not being locked.

[0025] (2) In this invention, by using the limiting mechanism, the continuous pressure of the top spring is used to automatically press the mating teeth into the tooth grooves of the follower gear and the transmission gear after the positioning eccentric wheel is in place, thereby achieving axial limiting and locking the reverse path of the eccentric wheel. Even if subjected to large external force or continuous vibration, the metal pin will not come out, ensuring that the grounding connection is not interrupted under harsh working conditions. The damping rod can effectively absorb external vibration and the small vibration of the spring itself, preventing the positioning strip from jumping unnecessarily due to vibration, and further ensuring the reliability of gear meshing.

[0026] (2) In this invention, when the metal pin is inserted into the cavity, the pin positioning mechanism drives the two positioning eccentric wheels to rotate synchronously into the mating grooves on both sides of the metal pin through the control component, thereby achieving mechanical locking and ensuring low resistance contact. At the same time, under the continuous pressure of the top component, the limiting mechanism makes the mating teeth at the bottom of the positioning strip mesh with the tooth grooves of the positioning eccentric wheel and the transmission gear, thereby axially restricting the reverse rotation of the positioning eccentric wheel and preventing it from accidentally coming out due to vibration or accidental pulling. The cooperation of the two makes the grounding device able to reliably lock the metal pin when working normally, and also ensure that the locking state is not damaged by external disturbances. Only after actively pressing down the pressing strip to release the limit and rotating the control component in the opposite direction can the pin be safely pulled out, thus realizing a complete closed loop of locking, anti-loosening, and controllable unlocking functions. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 This is an exploded cross-sectional view of the present invention;

[0029] Figure 3 This is a partial cross-sectional view of the present invention;

[0030] Figure 4This is a perspective view of the positioning eccentric wheel of the present invention;

[0031] Figure 5 This is a perspective view of the pin positioning mechanism of the present invention;

[0032] Figure 6 This is a perspective view of the mating teeth of the present invention;

[0033] Figure 7 This is an exploded view of the top component of the present invention;

[0034] Figure 8 This is an exploded view of the positioning component of the present invention.

[0035] The markings in the diagram are: 1. Metal shell; 2. Insertion cavity; 3. Metal pin; 4. Limiting strip; 5. Pressing cavity; 6. Docking groove; 7. Top spring; 8. Damping rod; 9. Pressing strip; 10. Guide groove; 11. Pull rope; 12. Adjustment connecting plate; 13. Positioning strip; 14. Follower gear; 15. Transmission gear; 16. External groove post; 17. Docking tooth; 18. Connecting column; 19. Positioning eccentric wheel; 20. Positioning cavity; 21. Cavity limiting plate; 22. Slot; 23. Drive cavity; 24. Grounding wire groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] Example 1, refer to Figure 1-8 A grounding device for a backup power system includes a metal housing 1, a metal pin 3, a pin positioning mechanism, and a limiting mechanism.

[0038] A cavity 2 is provided inside the metal shell 1;

[0039] The metal pin 3 is movably inserted into the cavity 2, and a grounding wire groove 24 is provided on one side of the outer surface of the metal pin 3;

[0040] The pin positioning mechanism includes a control component, positioning eccentric wheels 19, and mating grooves 6. Positioning cavities 20 are formed on both sides of the inner wall of the insertion cavity 2 near the bottom. Two positioning eccentric wheels 19 are provided, each rotatably connected to one positioning cavity 20. Two mating grooves 6 are provided, each formed on the bottom side of the outer surface of the metal pin 3. Each positioning eccentric wheel 19 is installed in one mating groove 6. The control component is located inside the metal housing 1 and is connected to the two positioning eccentric wheels 19. The control component includes a follower assembly, a transmission gear 15, and an external groove post 16. A... A drive chamber 23 is provided on the side, and two transmission gears 15 are provided. Both transmission gears 15 are rotatably connected to the bottom of the drive chamber 23 and mesh with each other. An external groove post 16 is fixedly connected to one of the transmission gears 15. A follower assembly is provided in the drive chamber 23 and is connected to two positioning eccentric wheels 19 and the two transmission gears 15. The follower assembly is a follower gear 14, and there are two follower gears 14. Each follower gear 14 is fixedly connected to one end of each positioning eccentric wheel 19, and the two follower gears 14 mesh with the two transmission gears 15 respectively.

[0041] In this implementation scheme: the metal shell 1 is fixedly installed on the equipment grounding point or grounding bar as a fixed part of the entire device. The internal cavity 2 guides the metal pin 3 to be inserted. The detachable movable part of the metal pin 3 is fixed to the grounding wire through the grounding wire groove 24. After being inserted into the metal shell 1, electrical connection is achieved. When the metal pin 3 is inserted into the cavity 2, the positioning eccentric wheel 19 rotates and embeds into the docking groove 6, mechanically locking the metal pin 3 to prevent it from being pulled out, while ensuring low resistance contact. The external slot column 16 is fixed on the transmission gear 15 on one side and extends outward from the metal shell 1. Single-point operation can synchronously control the positioning eccentric wheels 19 on both sides to avoid skewed locking, ensuring that the metal pin 3 is centered and the force is even. The two follower gears 14 cooperate with the two transmission gears 15 to realize that the two positioning eccentric wheels 19 rotate synchronously in opposite directions or in opposite directions, realizing simultaneous insertion or withdrawal of the two docking grooves 6. There will be no situation where one side is locked and the other side is not locked. The torque is transmitted directly without the need for connecting rods.

[0042] The limiting mechanism includes a top positioning component, a control positioning component, a positioning strip 13, and mating teeth 17. The mating teeth 17 are slidably connected within the drive cavity 23. Multiple mating teeth 17 are provided, and each is equidistantly fixed to the bottom of the positioning strip 13. The top positioning component is located within the drive cavity 23 and connected to the positioning strip 13. The control positioning component is located within the metal shell 1 and connected to the top positioning component. The top positioning component includes a force equalizing component, a damping component, and a top positioning spring 7. The force equalizing component is located within the drive cavity 23. Inside cavity 23, multiple top springs 7 are provided, and the multiple top springs 7 are equidistantly fixedly connected to the top of the drive cavity 23. A damping assembly is located inside the drive cavity 23 and is connected to the force equalizing assembly. The force equalizing assembly includes an adjusting connecting plate 12 and connecting columns 18. The adjusting connecting plate 12 is slidably connected to the drive cavity 23. Multiple connecting columns 18 are provided, and the multiple connecting columns 18 are equidistantly fixedly connected to the bottom of the adjusting connecting plate 12, and the multiple connecting columns 18 are fixedly connected to the positioning strip 13. The damping assembly is a damping... Multiple damping rods 8 are provided, and each damping rod 8 is fixedly connected at equal intervals to the top of the drive cavity 23. One end of each damping rod 8 is fixedly connected to the adjusting plate 12. The positioning component includes a tensioning assembly, a limiting assembly, a pressing cavity 5, and a pressing strip 9. The tensioning assembly is located inside the metal shell 1 and is connected to the adjusting plate 12. The pressing cavity 5 is located inside the metal shell 1, and the pressing strip 9 is movably connected to the pressing cavity 5. The limiting assembly is located on the pressing strip 9 and is connected to the tensioning assembly. The extension assembly includes a guide groove 10 and a pull rope 11. There are two guide grooves 10, which are respectively opened on both sides of the metal shell 1. The two ends of the pull rope 11 are movably connected to the two guide grooves 10, and the two ends of the pull rope 11 are respectively fixedly connected to the two ends of the adjustment plate 12. The limiting assembly includes a limiting strip 4 and a slot 22. The limiting strip 4 is fixedly connected to the bottom of the pressing strip 9, and the slot 22 is opened at the bottom of the limiting strip 4 and is connected to the pull rope 11.

[0043] In this implementation scheme: when the metal pin 3 is inserted, the positioning strip 13 descends, and the mating teeth 17 engage with the tooth grooves on the control component, restricting the axial movement of the positioning eccentric wheel 19, thereby positioning the metal pin 3 and ensuring that the grounding connection is not interrupted under vibration or accidental pulling. Multiple top springs 7 are equidistantly arranged on the top of the drive cavity 23, continuously applying downward force. The force equalization component evenly transmits the force of the top springs 7 to the positioning strip 13. The damping component absorbs the elastic force of the top springs 7 during use, preventing rapid collisions caused by vibration. The adjusting connecting plate 12 slides up and down in the drive cavity 23. The upper ends of multiple connecting columns 18 are fixed to the bottom surface of the adjusting connecting plate 12, and the lower ends are fixed to the top surface of the positioning strip 13. The force applied by the top springs 7 to the adjusting connecting plate 12 is evenly transmitted to the positioning strip 13 through the multiple connecting columns 18, preventing the positioning strip 13 from tilting and jamming. The damping rod 8 is fixed between the top of the drive cavity 23 and the adjusting connecting plate 12. The damping rod 8 can be a hydraulic damping rod or a friction damping rod, selected according to the needs of the market. The existing components are sufficient to avoid overall vibration during use, which could cause the top spring 7 to vibrate. The pressing bar 9 can move up and down, and the limiting component prevents the pressing bar 9 from coming off. The pressing bar 9 controls the height of the adjusting connecting plate 12 via the tensioning component. When the metal pin 3 needs to be pulled out, the pressing bar 9 is pressed down, the limiting component releases the tensioning component, and the tensioning component pulls the adjusting connecting plate 12 up, causing the positioning bar 13 to rise, disengaging the mating teeth 17 from the two follower gears 14 and the two transmission gears 15. The pull rope 11... Both ends are movably connected to the two guide grooves 10 and fixed to the two ends of the adjustment plate 12. The two guide grooves 10 are symmetrically arranged on both sides inside the metal shell 1. The middle section of the pull rope 11 corresponds to the pressing strip 9. When the pressing strip 9 descends, it presses down the pull rope 11, causing the pull rope 11 to pull the adjustment plate 12 upward. The pull rope 11 can be a non-metallic high-strength rope to ensure electrical isolation. The limit strip 4 prevents the pressing strip 9 from leaving the lower pressing cavity 5 and is fixed to the bottom of the pressing strip 9. The slot 22 is connected to the pull rope 11.

[0044] Specifically: a cavity limiting plate 21 is fixedly connected to the drive cavity 23 near the top, and multiple connecting posts 18 are movably inserted into the cavity limiting plate 21.

[0045] In this embodiment: the cavity limiting plate 21 divides the drive cavity 23 into upper and lower sections. The connecting column 18 passes through the guide hole on the cavity limiting plate 21 to prevent the connecting column 18 from deflecting during movement. The top spring 7 and damping rod 8 are restricted in the upper cavity to avoid interference with the gear mechanism in the lower cavity. At the same time, the lifting height of the positioning bar 13 is limited to prevent it from excessively pressing down and damaging the mating teeth 17.

[0046] In use, the metal shell 1 is fixedly installed on the equipment grounding point or grounding bar. An appropriate length of insulation is stripped from the end of the grounding wire, and it is embedded into the grounding wire groove 24 on the side of the metal pin 3, and then pressed or welded in place. Holding the metal pin 3, it is aligned with the insertion cavity 2 on the metal shell 1 and smoothly pushed into the bottom of the insertion cavity 2. During insertion, when the metal pin 3 reaches the bottom, the pressing bar 9 is pressed down with a tool, causing the limit bar 4 to control the pull rope 11 to press down, thereby raising the adjusting plate 12 and compressing the top spring 7. The external groove column 16 is rotated with a tool, driving one of the transmission gears 15 to rotate. Since the two transmission gears 15 mesh with each other and are respectively meshed with the two follower gears 14, they drive the positioning eccentric wheels 19 on both sides to rotate synchronously in opposite directions. The two positioning eccentric wheels 19 respectively rotate into the mating grooves 6 on both sides of the metal pin 3. The mechanical locking mechanism prevents the metal pin 3 from being accidentally pulled out. After the positioning eccentric wheel 19 is in place, the pressing bar 9 is released. Under the continuous pressure of the top spring 7, the positioning bar 13 is pushed down evenly by the adjusting connecting plate 12 and multiple connecting columns 18. The multiple mating teeth 17 at the bottom of the positioning bar 13 mesh with the tooth grooves of the following gear 14 and the transmission gear 15 below, ensuring that the positioning eccentric wheel 19 is axially limited during use and cannot reverse. The damping rod 8 absorbs the vibration force of the top spring 7 during use, preventing vibration or accidental loosening. When disassembling, the pressing bar 9 is pressed down again to disengage the mating teeth 17 from the gears. At the same time, the external groove column 16 is rotated in the opposite direction, and the transmission gear 15 rotates in the opposite direction, driving the two positioning eccentric wheels 19 to rotate synchronously in opposite directions and exit from the mating groove 6 of the metal pin 3. The metal pin 3 can then be pulled out.

[0047] The control method of this invention is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grounding device for a backup power system, comprising a metal shell (1), a metal pin (3), a pin positioning mechanism, and a limiting mechanism, characterized in that: The metal shell (1) has an insertion cavity (2) inside; The metal pin (3) is movably inserted into the cavity (2), and a grounding groove (24) is provided on one side of the outer surface of the metal pin (3). The pin positioning mechanism includes a control component, a positioning eccentric wheel (19), and a docking groove (6). The inner wall of the insertion cavity (2) is provided with positioning cavities (20) on both sides near the bottom. There are two positioning eccentric wheels (19), each of which is rotatably connected to each positioning cavity (20). There are two docking grooves (6), which are respectively opened at the bottom of both sides of the outer surface of the metal pin (3). Each positioning eccentric wheel (19) is installed in each docking groove (6). The control component is located in the metal shell (1) and is connected to the two positioning eccentric wheels (19). The limiting mechanism includes a top positioning component, a control positioning component, a positioning bar (13), and a docking tooth (17). The docking tooth (17) is slidably connected in the drive cavity (23). There are multiple docking teeth (17), and all of the multiple docking teeth (17) are fixedly connected at equal intervals to the bottom of the positioning bar (13). The top positioning component is located in the drive cavity (23) and is connected to the positioning bar (13). The control positioning component is located in the metal shell (1) and is connected to the top positioning component.

2. A grounding device for a backup power system as described in claim 1, characterized in that: The control component includes a follower assembly, a transmission gear (15), and an external slotted column (16). A drive cavity (23) is provided on one side of the metal shell (1). There are two transmission gears (15), both of which are rotatably connected to the bottom of the drive cavity (23) and mesh with each other. The external slotted column (16) is fixedly connected to one of the transmission gears (15). The follower assembly is located in the drive cavity (23) and is connected to two positioning eccentric wheels (19). The follower assembly is also connected to the two transmission gears (15).

3. A grounding device for a backup power system as described in claim 1, characterized in that: The follower component is a follower gear (14), and there are two follower gears (14). Each follower gear (14) is fixedly connected to one end of each positioning eccentric wheel (19), and the two follower gears (14) mesh with the two transmission gears (15) respectively.

4. A grounding device for a backup power system as described in claim 1, characterized in that: The top position component includes a force equalization component, a damping component and a top position spring (7). The force equalization component is located in the drive cavity (23). There are multiple top position springs (7). The multiple top position springs (7) are fixedly connected at equal intervals to the top of the drive cavity (23). The damping component is located in the drive cavity (23) and is connected to the force equalization component.

5. A grounding device for a backup power system as described in claim 1, characterized in that: The force equalization component includes an adjustment plate (12) and a connecting column (18). The adjustment plate (12) is slidably connected in the drive cavity (23). There are multiple connecting columns (18). The multiple connecting columns (18) are all fixedly connected to the bottom of the adjustment plate (12) at equal intervals, and the multiple connecting columns (18) are all fixedly connected to the positioning strip (13).

6. A grounding device for a backup power system as described in claim 1, characterized in that: The damping component is a damping rod (8), and there are multiple damping rods (8). The multiple damping rods (8) are fixedly connected at equal intervals to the top of the drive cavity (23), and one end of the multiple damping rods (8) is fixedly connected to the adjustment plate (12).

7. A grounding device for a backup power system as described in claim 1, characterized in that: The control component includes a tensioning component, a limiting component, a pressing chamber (5), and a pressing strip (9). The tensioning component is located inside the metal shell (1) and is connected to the adjusting connecting plate (12). The pressing chamber (5) is located inside the metal shell (1). The pressing strip (9) is movably connected to the pressing chamber (5). The limiting component is located on the pressing strip (9) and is connected to the tensioning component.

8. A grounding device for a backup power system as described in claim 1, characterized in that: The tensioning assembly includes a guide groove (10) and a pull rope (11). There are two guide grooves (10), which are respectively opened on both sides of the metal shell (1). The two ends of the pull rope (11) are respectively movably connected to the two guide grooves (10), and the two ends of the pull rope (11) are respectively fixedly connected to the two ends of the adjustment plate (12).

9. A grounding device for a backup power system as described in claim 1, characterized in that: The limiting component includes a limiting strip (4) and a slot (22). The limiting strip (4) is fixedly connected to the bottom of the pressing strip (9). The slot (22) is opened at the bottom of the limiting strip (4) and is connected to the pull rope (11).

10. A grounding device for a backup power system as described in claim 1, characterized in that: A cavity limiting plate (21) is fixedly connected near the top of the drive cavity (23), and multiple connecting columns (18) are movably inserted into the cavity limiting plate (21).

Citation Information

Patent Citations

  • Be applied to earthing device of electric power system's earth connection

    CN207149794U