Photovoltaic power plant electrical equipment grounding device and installation method thereof

Abstract

The invention relates to the technical field of grounding devices, and provides a photovoltaic power plant electrical equipment grounding device which comprises a first connecting plate and an intelligent gateway, the first connecting plate is fixedly connected with a fixing block, the fixing block is fixedly connected with a motor, and the intelligent gateway is fixedly connected with the motor. A guide rod is fixedly connected to an output shaft of the motor, a screw rod is fixedly connected to the guide rod, a first connecting block and a second connecting block are slidably mounted on the outer side of the guide rod, a first connecting plate is rotatably connected to the bottom of the first connecting block, and a second connecting plate is rotatably connected to the bottom of the second connecting block; and a third connecting plate is rotationally mounted on the first connecting plate on the rearmost side. According to the technical scheme, the problems that an existing grounding device cannot be suitable for grounding of two rows of multi-group electrical equipment and cannot be connected with an adjacent grounding structure when one grounding structure fails are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of grounding devices, and in particular to a grounding device for electrical equipment in a photovoltaic power plant and an installation method thereof. Background Art

[0002] Photovoltaic power generation, as a clean and environmentally friendly form of energy, has become an important part of the global energy structure transformation. Photovoltaic power plants mainly convert solar radiation energy into electrical energy through solar panels and output electricity to supply society. However, during the operation of the electrical equipment of the photovoltaic power generation system, due to electrical failures, equipment aging or external environmental factors, electrical equipment leakage, short circuit or overvoltage may occur. In order to ensure the safe operation of photovoltaic power stations and prevent accidents such as equipment damage and electric shock, effective electrical grounding measures must be taken. The existing grounding devices still have some shortcomings.

[0003] The invention patent with publication number CN101752737B discloses a grounding lock, including a housing and a grounding lead, and also a grounding connector; the fixed end of the grounding lead is mounted on an insulating mounting plate on the housing; a pin fixed on the grounding connector can pass through an insertion hole on the grounding lead and enter the housing; a push plate that can be pushed up by the pin is installed in the housing; a grounding lock core is installed on the inner side of the insulating mounting plate, a locking key can cooperate with the grounding lock core and drive the grounding lock core to rotate, a lock plate can rotate with the grounding lock core, when the push plate is not pushed up, the lock plate cannot rotate and the locking key cannot be pulled out of the lock hole; the grounding hooks of each phase are locked together by a hook lock, and the locking key can open the hook lock. Although the above device can realize the functions of outputting a grounding status signal and facilitating monitoring, the existing grounding device cannot adapt to the grounding of multiple groups of electrical equipment in two columns, does not have the function of equidistantly adjusting the grounding structure, and the existing grounding device cannot maintain the connection state with the adjacent grounding structure when one of the grounding structures fails, the safety is insufficient, and the grounding resistance of the supporting structures on both sides of the device cannot be monitored in real time. Summary of the invention

[0004] The present invention provides a photovoltaic power plant electrical equipment grounding device and an installation method thereof, which solves the problem that the existing grounding device cannot adapt to the grounding of two columns and multiple groups of electrical equipment and cannot maintain connection with adjacent grounding structures when one of the grounding structures fails.

[0005] The technical solution of the present invention is as follows:

[0006] A grounding device for electrical equipment in a photovoltaic power plant comprises a first connecting plate and an intelligent gateway, wherein a fixed block is fixedly connected to the first connecting plate, a motor is fixedly connected to the fixed block, a guide rod is fixedly connected to the output shaft of the motor, a screw rod is fixedly connected to the guide rod, a first connecting block and a second connecting block are slidably installed on the outer side of the guide rod, a first connecting plate is rotatably connected to the bottom of the first connecting block, a second connecting plate is rotatably connected to the bottom of the second connecting block, a third connecting plate is rotatably installed on the first connecting plate on the rearmost side, a third connecting block is rotatably connected to the top of the third connecting plate, the third connecting block is threadedly connected to the screw rod, a second connecting plate is rotatably installed on the third connecting plate, a supporting assembly is installed between the first connecting plate and the second connecting plate and on the second connecting plate, an extension assembly is installed on the first connecting block, the second connecting block and the third connecting block, a connecting assembly is installed on the extension assembly, a first anchor rod is penetrated in the first connecting plate, a second anchor rod is penetrated in the second connecting plate, a grounding resistance detection sensor is connected to the first anchor rod and the second anchor rod, and the grounding resistance detection sensor is connected to the intelligent gateway.

[0007] As a preferred solution of the present invention, the second anchor rod and the first anchor rod are parallel to each other.

[0008] As a preferred solution of the present invention, the outer wall of the guide rod is in contact with the inner walls of the first connecting block and the second connecting block, the first connecting block and the second connecting block are alternately distributed on the guide rod, and the first connecting block and the second connecting block are slidably connected to the screw rod.

[0009] As a preferred solution of the present invention, the first connecting plate and the second connecting plate are rotatably connected, the first connecting plate and the first connecting plate at the front are rotatably connected, and the first connecting plate and the second connecting plate are rotatably connected.

[0010] As a preferred solution of the present invention, the support assembly includes a stud that penetrates the first connecting plate and the second connecting plate, the outer side of the stud is threadedly connected to a threaded bushing, the outer side of the stud is sleeved with a spring, and the top of the stud is fixedly connected to a connecting block, and the support assembly is connected in the same manner as the two adjacent first connecting plates and the second connecting plates, the rearmost first connecting plate and the third connecting plate, and the third connecting plate and the support assembly.

[0011] As a preferred solution of the present invention, the upper and lower sides of the spring are respectively connected to the threaded bushing and the first connecting plate, and the spring and the threaded bushing are rotationally connected.

[0012] As a preferred solution of the present invention, the extension component includes a first connecting shaft installed on the first connecting block, a second connecting shaft is installed on the top of the first connecting shaft, a first extension plate is fixedly provided on the side of the first connecting shaft, a second extension plate is fixedly provided on the side of the second connecting shaft, and connecting grooves are provided on the first extension plate and the second extension plate.

[0013] As a preferred solution of the present invention, the connecting component includes a sliding sleeve slidably installed in the connecting groove, a sliding groove is provided in the sliding sleeve, a cylindrical slider is slidably connected in the sliding groove, a sliding rod is fixedly provided on the cylindrical slider, an opening is provided on the sliding sleeve, a magnetic block is installed in the sliding rod, and the sliding rod is made of magnetic metal material.

[0014] As a preferred solution of the present invention, the first limit plate and the second limit plate are fixedly connected on both sides of the third connecting block, respectively, the first limit plate and the second limit plate are in contact with the first connecting block and the second connecting block, the first limit plate and the second limit plate are fixedly connected with a fixed tube, a conductive rod is slidably installed in the fixed tube, and a leaf spring is installed between the first limit plate and the second limit plate and the conductive rod.

[0015] A method for installing a grounding device for electrical equipment in a photovoltaic power plant comprises the following steps:

[0016] S1: The first connecting plate and the second connecting plate are used for supporting the front and rear sides of the device. The positions of the supporting components at various locations are adjusted according to the arrangement spacing of multiple electrical equipment in the photovoltaic power plant. The supporting components are used for supporting the left and right sides of the device.

[0017] S2: When adjusting the support spacing of multiple groups of support components, the guide rod is driven to rotate by the motor, which drives the screw rod to rotate. When the screw rod rotates, it drives the third connection block to move forward, so that the third connection plate below the third connection block rotates counterclockwise on the first connection plate at the rear side. At the same time, each first connection plate rotates clockwise synchronously, and each second connection plate rotates counterclockwise synchronously, so that the spacing between each group of first connection blocks and second connection blocks is shortened synchronously, and the spacing between each group of extension components is also shortened synchronously, so as to adapt to the use of electrical equipment with a smaller spacing, and keep each group of extension components between two electrical equipment;

[0018] S3: According to the different undulations of the ground, the distances between the supporting components at various locations and the ground are adjusted to support multiple locations of the device and keep them grounded. The connecting components in the extension components can be folded after extending upward, and two or more connecting components are connected. The two or more connecting components are connected, and the grounding resistance data of the grounding resistance detection sensor is monitored in real time through the intelligent gateway.

[0019] The working principle and beneficial effects of the present invention are:

[0020] 1. By setting the guide rod, screw rod, first connecting block, second connecting block and third connecting block, when the motor drives the guide rod and screw rod to rotate, the third connecting block will move forward and backward, and drive the third connecting plate to rotate, thereby making multiple groups of first connecting plates and second connecting plates rotate, so that the support components at various positions can be shortened or increased synchronously while maintaining equal distance, so as to adapt to the use of electrical equipment with different arrangement spacings, enhance the convenience of the device when used, solve the problem that the existing grounding device cannot adapt to the grounding of multiple groups of electrical equipment in two rows and does not have an equidistant adjustable grounding structure, and the device has the advantage of stronger adaptability.

[0021] 2. Through the support assembly on the device, the device can adaptively support and ground multiple positions on the left and right sides, thereby ensuring the overall stability and grounding effect of the device. According to the terrain undulations at different positions on the left and right sides of the device, the overall support effect of the device is changed, and the threaded bushing on the outside of the rotating rod stud is kept in contact with the bottom surface, which ensures the grounding effect while enhancing the adaptability of the device.

[0022] 3. The device is provided with an extension component and a connection component, which can connect the conductors on the two rows of electrical equipment to the first extension plate and the second extension plate respectively, and realize the grounding function by sliding the sleeves connected in the two extension plates. In order to prevent the grounding failure of one of the connecting sleeves, the slide rod is pulled upward to the top and then rotated by the cylindrical slider and the slide groove. The slide rod can be connected with the slide sleeve in the rear row when rotating, so that when the grounding structure fails at that location, multiple interconnected slide rods and slide sleeves can be used to maintain the grounding effect. This solves the problem that the existing grounding device cannot maintain the connection state with the adjacent grounding structure when one of the grounding structures fails. The device has the advantage of being safer to use.

[0023] 4. The device is equipped with an intelligent gateway and a grounding resistance detection sensor. By installing the resistance detection sensor on the anchor rod, the change of the grounding resistance can be monitored in real time. Timely acquisition of grounding resistance information can help prevent safety accidents, reduce safety hazards, and ensure the safety of the device during use. It solves the problem that the existing grounding device cannot monitor the grounding resistance of the supporting structures on the front and rear sides of the device in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Figure 1 It is a schematic diagram of the overall structure of a grounding device for electrical equipment in a photovoltaic power plant according to the present invention;

[0026] Figure 2yes Figure 1 A magnified schematic diagram of the structure at center A;

[0027] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 4 yes Figure 1 A magnified schematic diagram of the structure at C in the middle;

[0029] Figure 5 is a schematic diagram of the connection structure between the second connection plate and the second anchor rod of the present invention;

[0030] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at D in the middle;

[0031] Figure 7 yes Figure 5 A magnified schematic diagram of the structure at E in the middle;

[0032] Figure 8 It is a schematic diagram of the internal structure of the connection component of the present invention;

[0033] Fig. 9 It is a schematic diagram of the connection structure between the first connection plate and the first anchor rod of the present invention;

[0034] Fig.10 yes Fig. 9 A magnified schematic diagram of the structure at F in the middle;

[0035] Fig.11 It is a schematic diagram of the connection structure of the first connecting plate and the second connecting plate of the present invention.

[0036] Figure numerals: 1, first connecting plate; 2, first anchor rod; 3, fixing block; 4, motor; 5, guide rod; 6, first connecting block; 7, second connecting block; 8, first connecting plate; 9, second connecting plate; 10, supporting assembly; 1001, stud; 1002, threaded bushing; 1003, spring; 1004, connecting block; 11, screw rod; 12, extension assembly; 1201, first connecting shaft; 1202, first extension plate; 1203, second connecting shaft; 1204, The second extension plate; 1205, the connecting groove; 13, the second connecting plate; 14, the second anchor rod; 15, the first limit plate; 16, the second limit plate; 17, the fixing tube; 18, the conductive rod; 19, the leaf spring; 20, the connecting assembly; 2001, the sliding sleeve; 2002, the sliding rod; 2003, the slider; 2004, the sliding groove; 2005, the opening; 21, the magnetic block; 22, the third connecting block; 23, the third connecting plate; 24, the ground resistance detection sensor; 25, the intelligent gateway. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] like Figure 1-Figure 11 As shown, this embodiment proposes a grounding device for electrical equipment in a photovoltaic power plant, including a first connecting plate 1 and an intelligent gateway 25, a fixing block 3 is fixedly connected to the first connecting plate 1, a motor 4 is fixedly connected to the fixing block 3, a guide rod 5 is fixedly connected to the output shaft of the motor 4, a screw 11 is fixedly connected to the guide rod 5, a first connecting block 6 and a second connecting block 7 are slidably installed on the outer side of the guide rod 5, a first connecting plate 8 is rotatably connected to the bottom of the first connecting block 6, a second connecting plate 9 is rotatably connected to the bottom of the second connecting block 7, a third connecting plate 23 is rotatably installed on the first connecting plate 8 on the rear side, a third connecting block 22 is rotatably connected to the top of the third connecting plate 23, the third connecting block 22 is threadedly connected to the screw 11, and the third connecting plate 23 is rotatably connected to the screw 11. A second connecting plate 13 is rotatably installed on the upper surface, a supporting assembly 10 is installed between the first connecting plate 8 and the second connecting plate 9 and on the second connecting plate 13, an extension assembly 12 is installed on the first connecting block 6, the second connecting block 7 and the third connecting block 22, a connecting assembly 20 is installed on the extension assembly 12, a first anchor rod is penetrated in the first connecting plate, a second anchor rod 14 is penetrated in the second connecting plate 13, a grounding resistance detection sensor 24 is connected to the first anchor rod 2 and the second anchor rod 14, the grounding resistance detection sensor 24 is connected to the intelligent gateway 25, the model of the intelligent gateway 25 is CHG8S02-XXXL, the grounding resistance is detected by the grounding resistance detection sensor 24, and the intelligent gateway 25 is used to collect grounding resistance data. The front and rear sides of the device are supported by the first connecting plate 1 and the second connecting plate 13, and the guide rod 5 and the screw rod 11 are driven to rotate by the motor 4 on the fixed block 3. When the screw rod 11 rotates, the third connecting block 22 is driven to move forward and backward, thereby changing the rotation of the third connecting plate 23 on the device. While rotating, the third connecting plate 23 will also move forward and backward and drive the other first connecting plates 8 and second connecting plates 9 to rotate. The first connecting plate 8 and the second connecting plate 9 will shrink as a whole while rotating, so that the extension components 12 at various locations are kept equidistant while the spacing is shortened synchronously, thereby adapting to the use of electrical equipment of photovoltaic power plants with different arrangement spacings, and the electrical equipment of photovoltaic power plants is connected to the connecting component 20 through an external conductor, and the connecting component 20 on the front side can be connected to the connecting component 20 on the rear side to ensure the safety of the device when in use. At the same time, the entire device has a network connection function.

[0040] Example 2

[0041] like Figure 1-Figure 11 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a grounding device for electrical equipment in a photovoltaic power plant.

[0042] In this embodiment, the second anchor rod 14 and the first anchor rod 2 are parallel to each other, and the first anchor rod 2 and the second anchor rod 14 can be inserted at the front and rear sides of the device to support the front and rear sides of the device.

[0043] In this embodiment, the outer wall of the guide rod 5 fits with the inner walls of the first connecting block 6 and the second connecting block 7, the first connecting block 6 and the second connecting block 7 are alternately distributed on the guide rod 5, and the first connecting block 6 and the second connecting block 7 are slidingly connected to the screw 11. When the guide rod 5 rotates, the screw 11 can rotate synchronously, so as to subsequently drive the two adjacent groups of first connecting blocks 6 and second connecting blocks 7 to approach each other, thereby adapting to the use of electrical equipment with different distribution spacings, thereby enhancing the convenience of the device when used.

[0044] In this embodiment, the first connecting plate 8 and the second connecting plate 9 are rotatably connected, the first connecting plate 1 and the first connecting plate 8 on the front side are rotatably connected, and the first connecting plate 8 and the second connecting plate 9 are rotatably connected. When the first connecting plate 8 on the rear side rotates and moves back and forth, it will drive the first connecting plates 8 and the second connecting plates 9 at the remaining positions to rotate and move, thereby changing the support spacing on the left and right sides of the device, thereby enhancing the adaptability of the device.

[0045] In this embodiment, the support assembly 10 includes a stud 1001 that passes through the first connecting plate 8 and the second connecting plate 9. The outer side of the stud 1001 is threadedly connected with a threaded bushing 1002. The outer side of the stud 1001 is sleeved with a spring 1003. The top of the stud 1001 is fixedly connected with a connecting block 1004. The support assembly 10 is connected in the same manner as the two adjacent first connecting plates 8 and the second connecting plates 9, the rearmost first connecting plate 8 and the third connecting plate 23, and the third connecting plate 23 and the support assembly 10. By rotating the threaded bushing 1002, the position of the threaded bushing 1002 on the stud 1001 is changed, thereby changing the initial height of the stud 1001 between the first connecting plate 8 and the second connecting plate 9 to adapt to the undulating terrain for use.

[0046] In this embodiment, the upper and lower sides of the spring 1003 are respectively connected to the threaded bushing 1002 and the first connecting plate 8. The spring 1003 and the threaded bushing 1002 are rotatably connected. When the rotatably installed spring 1003 and threaded bushing 1002 rotate the threaded bushing 1002, the spring 1003 will not be twisted, so that the device can adjust the local support effect while avoiding affecting the service life of the spring 1003.

[0047] In this embodiment, the extension component 12 includes a first connecting shaft 1201 installed on the first connecting block 6, a second connecting shaft 1203 is installed on the top of the first connecting shaft 1201, a first extension plate 1202 is fixedly provided on the side of the first connecting shaft 1201, and a second extension plate 1204 is fixedly provided on the side of the second connecting shaft 1203. A connecting groove 1205 is provided on the first extension plate 1202 and the second extension plate 1204. The first connecting shaft 1201 and the second connecting shaft 1203 can support the first extension plate 1202 and the second extension plate 1204. The first extension plate 1202 and the second extension plate 1204 can be connected to the left and right columns of electrical equipment through external conductors, thereby realizing the function of grounding the two columns of electrical equipment.

[0048] In this embodiment, the connecting component 20 includes a sleeve 2001 slidably installed in the connecting groove 1205, a slide groove 2004 is provided in the sleeve 2001, a cylindrical slider 2003 is slidably connected in the slide groove 2004, a slide rod 2002 is fixedly provided on the cylindrical slider 2003, an opening 2005 is provided on the sleeve 2001, a magnetic block 21 is installed in the slide rod 2002, the slide rod 2002 is made of magnetic metal, after the slide rod 2002 moves to the top, the slide rod 2002 can be rotated by the cylindrical slider 2003 and the slide groove 2004, the magnetic block 21 in the slide rod 2002 can be adsorbed with the sleeve 2001 on the rear side of the device, thereby completing the connecting function of the two adjacent connecting components 20.

[0049] In this embodiment, the first limit plate 15 and the second limit plate 16 are fixedly connected on both sides of the third connecting block 22, and the first limit plate 15 and the second limit plate 16 are in contact with the first connecting block 6 and the second connecting block 7. The first limit plate 15 and the second limit plate 16 are fixedly connected with a fixing tube 17, and a conductive rod 18 is slidably installed in the fixing tube 17. Leaf springs 19 are installed between the first limit plate 15 and the second limit plate 16 and the conductive rod 18. The first limit plate 15 and the second limit plate 16 ensure that the first connecting block 6 and the second connecting block 7 can move straightly. The third connecting block 22 can drive the fixed tube 17 to move when moving, and the conductive rod 18 in the fixed tube 17 can adapt to different heights of the ground to realize the grounding function.

[0050] Specifically, the present invention is a grounding device for electrical equipment in a photovoltaic power plant and an installation method thereof. First, Figure 1-Figure 8As shown, the entire device is made of conductive material. The first connecting plate 1 and the second connecting plate 13 are used to support the front and rear sides of the device. The position of each supporting component 10 is adjusted according to the layout spacing of multiple electrical equipment in the photovoltaic power plant. The supporting component 10 is used to support the left and right sides of the device. When adjusting the support spacing of multiple groups of support components 10, the guide rod 5 is driven to rotate by the motor 4, driving the screw 11 to rotate. When the screw 11 rotates, it will drive the third connecting block 22 to move forward, so that the third connecting plate 23 under the third connecting block 22 rotates counterclockwise on the first connecting plate 8 on the rear side. At the same time, each first connecting plate 8 rotates synchronously clockwise, and each second connecting plate 9 rotates synchronously counterclockwise, so that the spacing between each group of first connecting blocks 6 and second connecting blocks 7 is synchronously shortened. The first limiting plate 15 and the second limiting plate 16 on the third connecting block 22 can ensure that the first connecting block 6 and the second connecting block 7 move straight, and the spacing between each group of extension components 12 will also be shortened synchronously, so as to adapt to the use of electrical equipment with a smaller spacing, and keep each group of extension components 12 between two electrical equipment. The third connecting block 22 can drive the fixed tube 17 to move when moving, and the conductive rod 18 in the fixed tube 17 can adapt to the ground at different heights to realize the grounding function.

[0051] like Figure 5-Figure 11 As shown, according to the different undulations of the ground, the distance between the support assembly 10 at each location and the ground is adjusted to support multiple positions of the device and keep the grounding state. The connection assembly 20 in the extension assembly 12 can be folded after extending upward to connect two or more connection assemblies 20. Since the connection mode between the first connection plate 8 and the third connection plate 23 at the rear side and the third connection plate 23 and the support assembly 10 is the same, the device can change the position of the threaded bushing 1002 on the stud 1001 by rotating the threaded bushing 1002, thereby changing the initial height of the stud 1001 between the first connection plate 8 and the second connection plate 9. The spring 1003 is used to support the threaded bushing 1002 to adapt to the undulating terrain on the left and right sides of the device. When the spring 1003 and the threaded bushing 1002 are rotated, the spring 1003 is prevented from being excessively twisted. The first extension plate 1202 and the second extension plate 1204 can be connected to the electrical equipment in the left and right columns through an external conductor, thereby realizing the function of grounding the electrical equipment in the two columns. Since the slide bar 2002 is made of magnetic metal, after the slide bar 2002 moves to the top, the slide bar 2002 can be rotated through the cylindrical slider 2003 and the slide groove 2004, and the magnetic block 21 in the slide bar 2002 can be adsorbed with the sleeve 2001 on the rear side of the device, thereby completing the connection function of the two adjacent connection components 20, thereby ensuring the grounding effect of the device, and monitoring the grounding resistance data of the grounding resistance detection sensor 24 in real time through the intelligent gateway 25, thereby ensuring that the first anchor rod 2 and the second anchor rod 14 remain in a grounded state.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grounding device for electrical equipment in a photovoltaic power plant, comprising a first connection plate (1) and an intelligent gateway (25), characterized in that: The first connecting plate (1) is fixedly connected with a fixing block (3), the fixing block (3) is fixedly connected with a motor (4), the output shaft of the motor (4) is fixedly connected with a guide rod (5), the guide rod (5) is fixedly connected with a screw rod (11), the outer side of the guide rod (5) is slidably mounted with a first connecting block (6) and a second connecting block (7), the bottom of the first connecting block (6) is rotatably connected with a first connecting plate (8), the bottom of the second connecting block (7) is rotatably connected with a second connecting plate (9), a third connecting plate (23) is rotatably mounted on the first connecting plate (8) at the rearmost side, the upper part of the third connecting plate (23) is rotatably connected with a third connecting block (22), the third connecting block (22) and the screw rod (11) are threadedly connected, and the A second connecting plate (13) is rotatably mounted on the third connecting plate (23); a support assembly (10) is mounted between the first connecting plate (8) and the second connecting plate (9) and on the second connecting plate (13); an extension assembly (12) is mounted on the first connecting block (6), the second connecting block (7) and the third connecting block (22); a connecting assembly (20) is mounted on the extension assembly (12); a first anchor rod (2) is penetrated through the first connecting plate (1); a second anchor rod (14) is penetrated through the second connecting plate (13); a grounding resistance detection sensor (24) is connected to the first anchor rod (2) and the second anchor rod (14); and the grounding resistance detection sensor (24) is connected to the intelligent gateway (25).

2. A grounding device for electrical equipment in a photovoltaic power plant according to claim 1, characterized in that: The second anchor rod (14) and the first anchor rod (2) are parallel to each other.

3. A grounding device for electrical equipment in a photovoltaic power plant according to claim 1, characterized in that: The outer wall of the guide rod (5) is in contact with the inner walls of the first connecting block (6) and the second connecting block (7); the first connecting block (6) and the second connecting block (7) are alternately distributed on the guide rod (5); and the first connecting block (6) and the second connecting block (7) are slidably connected to the screw rod (11).

4. A grounding device for electrical equipment in a photovoltaic power plant according to claim 1, characterized in that: The first connecting plate (8) and the second connecting plate (9) are rotatably connected, the first connecting plate (1) and the first connecting plate (8) at the front are rotatably connected, and the first connecting plate (8) and the second connecting plate (9) are rotatably connected.

5. A photovoltaic power plant electrical equipment grounding device according to claim 1, characterized in that: The support assembly (10) comprises a stud (1001) penetrating the first connecting plate (8) and the second connecting plate (9); the outer side of the stud (1001) is threadedly connected to a threaded bushing (1002); the outer side of the stud (1001) is sleeved with a spring (1003); the top of the stud (1001) is fixedly connected to a connecting block (1004); the support assembly (10) is connected in the same manner as the two adjacent first connecting plates (8) and the second connecting plates (9), the rearmost first connecting plate (8) and the third connecting plate (23), and the third connecting plate (23) and the support assembly (10).

6. A photovoltaic power plant electrical equipment grounding device according to claim 5, characterized in that: The upper and lower sides of the spring (1003) are respectively connected to the threaded bushing (1002) and the first connecting plate (8), and the spring (1003) and the threaded bushing (1002) are rotationally connected.

7. A photovoltaic power plant electrical equipment grounding device according to claim 1, characterized in that: The extension component (12) includes a first connecting shaft (1201) installed on the first connecting block (6), a second connecting shaft (1203) is installed on the top of the first connecting shaft (1201), a first extension plate (1202) is fixedly arranged on the side of the first connecting shaft (1201), a second extension plate (1204) is fixedly arranged on the side of the second connecting shaft (1203), and a connecting groove (1205) is provided on the first extension plate (1202) and the second extension plate (1204).

8. A photovoltaic power plant electrical equipment grounding device according to claim 7, characterized in that: The connection assembly (20) comprises a sleeve (2001) slidably mounted in the connecting groove (1205), a slide groove (2004) being provided in the sleeve (2001), a cylindrical slider (2003) being slidably connected in the slide groove (2004), a slide rod (2002) being fixedly mounted on the cylindrical slider (2003), an opening (2005) being provided in the sleeve (2001), a magnetic block (21) being mounted in the slide rod (2002), and the slide rod (2002) being made of a magnetic metal material.

9. A photovoltaic power plant electrical equipment grounding device according to claim 1, characterized in that: The first limiting plate (15) and the second limiting plate (16) are fixedly connected to the two sides of the third connecting block (22), respectively; the first limiting plate (15) and the second limiting plate (16) are in contact with the first connecting block (6) and the second connecting block (7); the first limiting plate (15) and the second limiting plate (16) are fixedly connected to a fixing tube (17); a conductive rod (18) is slidably installed in the fixing tube (17); and a leaf spring (19) is installed between the first limiting plate (15) and the second limiting plate (16) and the conductive rod (18).

10. A method for installing a grounding device for electrical equipment in a photovoltaic power plant, using the grounding device for electrical equipment in a photovoltaic power plant according to claim 1, characterized in that: The steps include: S1: The first connecting plate (1) and the second connecting plate (13) are used for supporting the front and rear sides of the device. The positions of the supporting components (10) at various locations are adjusted according to the arrangement spacing of multiple electrical equipment in the photovoltaic power plant. The supporting components (10) are used for supporting the left and right sides of the device. S2: When adjusting the support spacing of the plurality of support components (10), the guide rod (5) is driven to rotate by the motor (4), thereby driving the screw rod (11) to rotate. When the screw rod (11) rotates, it drives the third connection block (22) to move forward, thereby causing the third connection plate (23) below the third connection block (22) to rotate counterclockwise on the first connection plate (8) at the rear side. At the same time, each first connection plate (8) rotates clockwise synchronously, and each second connection plate (9) rotates counterclockwise synchronously, thereby causing the spacing between each group of first connection blocks (6) and second connection blocks (7) to be shortened synchronously, and the spacing between each group of extension components (12) will also be shortened synchronously, thereby adapting to the use of electrical equipment with a smaller spacing, and keeping each group of extension components (12) located between two electrical equipment; S3: According to the different undulations of the ground, the distance between each support component (10) and the ground is adjusted to support multiple positions of the device and keep it grounded. The connecting component (20) in the extension component (12) can be folded after extending upward, and two or more connecting components (20) are connected. The grounding resistance data of the grounding resistance detection sensor (24) is monitored in real time through the intelligent gateway (25).

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