A special tool for replacing a small photovoltaic inverter on water and a method of using the tool

Abstract

The present invention discloses a special tool for replacing a small-scale photovoltaic inverter on water and a method for using the tool. The tool comprises a transport ship, wherein a base is arranged on the transport ship, a telescopic rod is mounted on the base, an end of the telescopic rod away from the base is movably connected with a clamp, and an end of the telescopic rod close to the clamp is provided with a trigger mechanism for controlling the opening and closing of the clamp and fixing the telescopic rod, the clamp comprises a first clamp half ring and a second clamp half ring located on both sides of the telescopic rod, the two rotating wheels are respectively fixedly connected to the first clamp half ring and the second clamp half ring by a connecting rod, and an elastic pull rod is fixedly connected between the rotating wheel and the inner wall of the telescopic rod. In use, the present invention provides a support point for the transport ship through the arrangement of the telescopic rod, the clamp and the trigger mechanism, so that the transportation of the inverter is more stable and reliable, and further improves the clamping strength between the clamp and the column by extending the fixing rod to clamp the fixing hole and the elastic extrusion block to squeeze the column.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic installation and mounting, and in particular to a special tool for replacing a small-scale photovoltaic inverter on water and a method for using the tool. Background Art

[0002] The small inverters of the floating photovoltaic power station are installed on the pipe piles in the form of clamps. Each inverter weighs nearly 300 kilograms. Due to space limitations, the installation vessel cannot be too close to the inverter during replacement. In addition, the installation vessel has no stable support points when transporting the inverter, which can easily cause the installation vessel to vibrate during transportation, causing adverse effects on the transportation process. In severe cases, it may even cause the installation vessel to capsize, causing safety accidents and making it difficult to replace the small inverter. Summary of the invention

[0003] The purpose of the present invention is to provide a special tool for replacing a small-scale photovoltaic inverter on water and a method of using the tool to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A special tool for replacing a small photovoltaic inverter on water comprises a transport ship, wherein the transport ship is provided with a base, a lifting mechanism and a traction mechanism, a telescopic rod is installed on the base, an end of the telescopic rod away from the base is movably connected with a clamp, and an end of the telescopic rod close to the clamp is provided with a trigger mechanism for controlling the opening and closing of the clamp and fixing the telescopic rod.

[0006] Preferably, the trigger mechanism comprises a pressing plate and a trigger circuit, the pressing plate is located at one end of the telescopic rod away from the base, the pressing plate is fixedly connected to a cutting tool extending into the telescopic rod, and a first elastic block is fixedly connected between the pressing plate and the telescopic rod;

[0007] The hoop comprises a first hoop half ring and a second hoop half ring located on both sides of the telescopic rod, and rotating wheels are rotatably arranged on both sides of the telescopic rod, and the two rotating wheels are respectively fixedly connected to the first hoop half ring and the second hoop half ring through a connecting rod, and an elastic pull rod is fixedly connected between the rotating wheel and the inner wall of the telescopic rod;

[0008] The first half ring of the clamp and the second half ring of the clamp are connected by a pull rope, and the pull rope moves through the telescopic rod and cooperates with the cutting tool to cut it. The trigger circuit includes a trigger switch, a wire and a sensor connected in sequence. The trigger switch is located on the side of the pull rope away from the cutting tool, and the trigger switch cooperates with the cutting tool to trigger so that the sensor controls the telescopic rod to be fixed.

[0009] Preferably, the trigger switch comprises two power connection blocks, and the cutting tool extends between the two power connection blocks to close the trigger switch and trigger the sensor.

[0010] Preferably, the telescopic rod is provided with a tool groove for inserting the cutting tool, the end of the tool groove away from the pressure plate is connected to a rope groove for the rope to pass through, the side of the rope groove away from the tool groove is connected to a trigger mechanism groove, and the power connection block is fixedly arranged on the inner wall of the trigger mechanism groove.

[0011] Preferably, a first arc-shaped groove is provided in the first hoop half ring, an arc-shaped plate is movably provided in the first arc-shaped groove, and an elastic compression block is provided between the arc-shaped plate and the inner wall of the first arc-shaped groove close to the telescopic rod, and two ends of the pull rope are respectively fixedly connected to the arc-shaped plate and the second hoop half ring;

[0012] A plurality of extending fixing rods extending out of the outer plate body of the arc plate are movably arranged in the arc plate, and the sizes of all the extending fixing rods are increased in sequence along the direction away from the telescopic rod. Any of the extending fixing rods extends to the outer side of the arc plate under the push of the second elastic block, and an elastic extrusion block extending to the inner side of the arc plate is arranged on one side of the extending fixing rod, and the elastic extrusion block is blocked by the baffle, and a through groove for the elastic extrusion block to extend out is provided on the plate body of the baffle close to the extending fixing rod, and a push rod is provided on the other side of the extending fixing rod, and the push rod is squeezed on the extending fixing rod under the push of the third elastic block, and a through hole for the push rod to pass through is provided on the extending fixing rod, and the push rod passes through the through hole and pushes the baffle;

[0013] The second hoop half ring is provided with a second arc groove for inserting the arc plate, the first arc groove and the second arc groove are provided with fixing holes extending outwardly to cooperate with the corresponding extending fixing rods on the outer sides, and the first arc groove and the second arc groove are provided with extrusion grooves extending outwardly to cooperate with the corresponding elastic extrusion blocks on the inner sides.

[0014] Preferably, the arc plate is provided with an extending fixed groove with an opening toward the outer side of the arc plate, the extending fixed groove is connected with an extending extrusion groove with an opening toward the inner side of the arc plate, the extending fixed rod is movably arranged in the extending fixed groove, one end of the elastic extrusion block is fixedly connected to the inner wall of the extending extrusion groove, the extending extrusion groove is connected with a baffle groove, and the baffle is movably inserted into the baffle groove.

[0015] Preferably, a fourth elastic block is fixedly connected between the baffle plate and the inner wall of the baffle plate groove.

[0016] A method for using a special tool for replacing a small-scale photovoltaic inverter on water, using the special tool for replacing a small-scale photovoltaic inverter on water, comprising the following steps:

[0017] A. Move the transport ship to the vicinity of the inverter to be replaced, and extend the telescopic rod until the trigger mechanism contacts the column on the inverter;

[0018] B, the trigger mechanism is triggered under the pressure of the column, so that the clamp is closed and stuck on the column, and the telescopic rod stops extending and is fixed;

[0019] C. The lifting mechanism rises to provide support until it fully supports the weight of the inverter. The inverter is removed and the lifting mechanism rises again to lift the inverter.

[0020] D. The traction mechanism pulls the inverter so that the inverter moves to the transport ship.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This device uses a trigger mechanism to make the clamp clamp the column to fix it, and the telescopic rod stops extending and fixes it. The telescopic rod and the clamp fix the base and the column, providing a support point for the transport ship to prevent the transport ship from vibrating during transportation, making the transportation of the inverter more stable and reliable;

[0023] 2. The device is provided with protruding fixing rods with increasing sizes on the arc plate, and corresponding fixing holes are provided on the first hoop half ring and the second hoop half ring, so that part of the protruding fixing rod is extended into the fixing hole of the first hoop half ring, and part of the protruding fixing rod is extended into the fixing hole of the second hoop half ring, so that the first hoop half ring and the second hoop half ring are relatively fixed and cannot be separated again, thereby improving the clamping strength between the hoop and the column;

[0024] 3. The device is provided with structures such as an extended fixing rod, an elastic extrusion block, a push rod and a baffle. When the extended fixing rod is inserted into the fixing hole, the elastic extrusion block passes through the extrusion groove and is squeezed on the column, further improving the clamping strength between the clamp and the column. At the same time, the push rod is inserted into the through hole so that the extended fixing rod cannot move, preventing the extended fixing rod from falling off from the fixing hole, thereby improving the fixing strength of the extended fixing rod and the fixing hole.

[0025] The special tool for replacing a small-scale photovoltaic inverter on water and the method for using the same provide a support point for a transport ship by arranging a telescopic rod, a clamp and a trigger mechanism, thereby making the transportation of the inverter more stable and reliable. The clamping strength between the clamp and the column is further improved by extending a fixing rod to clamp a fixing hole and squeezing a column with an elastic extrusion block. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the transport ship of the present invention being fixed by a clamp and a column;

[0027] Figure 2 This is a schematic diagram of the lifting mechanism of the present invention driving the inverter to rise;

[0028] Figure 3 This is a schematic diagram of the traction mechanism of the present invention driving the inverter to translate;

[0029] Figure 4 It is a schematic diagram of the opening of the clamp of the present invention;

[0030] Figure 5 for Figure 4 A schematic diagram of the structure of the middle A area;

[0031] Figure 6 for Figure 4 A magnified schematic diagram of the structure of the middle B area;

[0032] Figure 7 This is a schematic diagram of the closing of the clamp of the present invention;

[0033] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of the middle C area.

[0034] In the figure: 1 transport ship, 2 base, 3 lifting mechanism, 4 traction mechanism, 5 telescopic rod, 51 tool slot, 52 rope slot, 53 trigger mechanism slot, 6 clamp, 61 first clamp half ring, 611 first arc slot, 62 second clamp half ring, 621 second arc slot, 7 pressure plate, 8 cutting tool, 9 first elastic block, 10 rotating wheel, 11 connecting rod, 12 elastic pull rod, 13 pull rope, 14 power connection block, 15 wire, 16 sensor, 17 elastic compression block, 18 arc plate, 181 extending fixed slot, 182 extending extrusion slot, 183 baffle slot, 19 extending fixed rod, 191 through hole, 20 second elastic block, 21 elastic extrusion block, 22 baffle, 221 through slot, 23 push rod, 24 third elastic block, 25 fourth elastic block, 26 fixed hole, 27 extrusion slot, 28 column, 29 inverter. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in 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.

[0036] See also Figure 1-8 , the present invention provides a technical solution:

[0037] A special tool for replacing a small photovoltaic inverter on water comprises a transport ship 1. The transport ship 1 is provided with a base 2, a lifting mechanism 3 and a traction mechanism 4. The lifting mechanism 3 is used to lift an inverter 29. The traction mechanism 4 is used to transport the inverter 29 to the transport ship 1. A telescopic rod 5 is installed on the base 2. One end of the telescopic rod 5 away from the base 2 is movably connected with a clamp 6. The telescopic rod 5 moves in a direction close to a column 28 and makes the clamp 6 contact with the column 28. The end of the telescopic rod 5 close to the clamp 6 is provided with a trigger mechanism for controlling the opening and closing of the clamp 6 and fixing the telescopic rod 5. The clamp 6 is initially in an open state. When the trigger mechanism on the telescopic rod 5 contacts and triggers the column 28, the trigger mechanism drives the clamp 6 to close and clamp the column 28, and makes the telescopic rod 5 stop extending and fixed, so that the base 2 and the column 28 are fixed by the telescopic rod 5 and the clamp 6, providing a support point for the transport ship 1, preventing the transport ship 1 from vibrating during transportation, and making the transportation of the inverter 29 more stable and reliable.

[0038] As a preferred embodiment, the trigger mechanism includes a pressing plate 7 and a trigger circuit. The pressing plate 7 is located at one end of the telescopic rod 5 away from the base 2, and the pressing plate 7 is fixedly connected to a cutting tool 8 extending into the telescopic rod 5, and a first elastic block 9 is fixedly connected between the pressing plate 7 and the telescopic rod 5. The pressing plate 7 moves toward the column 28 as the telescopic rod 5 extends until the pressing plate 7 and the column 28 contact, the telescopic rod 5 continues to move, the pressing plate 7 is squeezed on the column 28, and the first elastic block 9 is squeezed, so that the cutting tool 8 moves in the direction of extending into the telescopic rod 5;

[0039] The hoop 6 includes a first hoop half ring 61 and a second hoop half ring 62 located on both sides of the telescopic rod 5. A rotating wheel 10 is rotatably arranged on both sides of the telescopic rod 5, and the two rotating wheels 10 are respectively fixedly connected to the first hoop half ring 61 and the second hoop half ring 62 through a connecting rod 11. The first hoop half ring 61 and the second hoop half ring 62 rotate with the center of the rotating wheel 10 connected to them as the center of the circle, so that the first hoop half ring 61 and the second hoop half ring 62 can be separated from each other, so that the column 28 can be moved. The first half ring 61 and the second half ring 62 of the hoop are inserted into the area formed between them, and the first half ring 61 and the second half ring 62 of the hoop are brought close to each other to clamp the column 28, and an elastic pull rod 12 is fixedly connected between the rotating wheel 10 and the inner wall of the telescopic rod 5. When the first half ring 61 and the second half ring 62 of the hoop are moved away from each other, the elastic pull rod 12 is elastically deformed with the movement of the rotating wheel 10, so as to provide a driving force for the subsequent first half ring 61 and the second half ring 62 of the hoop to be close to each other and clamped;

[0040] The first hoop half ring 61 and the second hoop half ring 62 are connected by a pull rope 13, and the pull rope 13 pulls the first hoop half ring 61 and the second hoop half ring 62 away from each other, so that the hoop 6 is opened, and the elastic pull rod 12 is elastically deformed, and the column 28 enters the hoop 6 and continues to squeeze the pressure plate 7 until the column 28 completely enters the hoop 6, and the cutting tool 8 moves to the pull rope 13 and cuts the pull rope 13, and the rotating wheel 10 rotates under the drive of the elastic pull rod 12, so that the first hoop half ring 61 and the second hoop half ring 62 are close to each other and clamp the column 28, and the pull rope 13 moves The trigger circuit includes a trigger switch, a wire 15 and a sensor 16 connected in sequence. The trigger switch is located on the side of the pull rope 13 away from the cutting tool 8, and the trigger switch cooperates with the cutting tool 8 to trigger so that the sensor 16 controls the telescopic rod 5 to be fixed. The cutting tool 8 cuts the pull rope 13 so that the clamp 6 clamps the column 28. The cutting tool 8 continues to move and contacts the trigger switch, so that the trigger switch is closed, the trigger circuit is connected, and the sensor 16 sends a signal to stop the telescopic rod 5 from extending and fixing it, thereby completing the establishment of the support point of the transport ship 1.

[0041] The trigger switch includes two power blocks 14. The cutting tool 8 extends between the two power blocks 14 to close the trigger switch and trigger the sensor 16. When the cutting tool 8 moves between the two power blocks 14, the cutting tool 8 connects the circuit between the two power blocks 14, thereby connecting the trigger circuit. The sensor 16 works and sends a signal, so that the telescopic rod 5 stops extending and is fixed.

[0042] The telescopic rod 5 is provided with a tool groove 51 for inserting the cutting tool 8. The end of the tool groove 51 away from the pressure plate 7 is connected to a rope groove 52 for the rope 13 to pass through. The side of the rope groove 52 away from the tool groove 51 is connected to a trigger mechanism groove 53, and the power connection block 14 is fixedly arranged on the inner wall of the trigger mechanism groove 53.

[0043] Furthermore, a first arc groove 611 is provided in the first hoop semi-ring 61, an arc plate 18 is movably provided in the first arc groove 611, and an elastic compression block 17 is provided between the arc plate 18 and the inner wall of the first arc groove 611 close to the telescopic rod 5, and the two ends of the pull rope 13 are respectively fixedly connected to the arc plate 18 and the second hoop semi-ring 62, the second hoop semi-ring 62 rotates under the pull of the pull rope 13, and the arc plate 18 moves in the direction close to the telescopic rod 5 under the pull of the pull rope 13, and the elastic compression block 17 is provided between the arc plate 18 and the inner wall of the first arc groove 611 close to the telescopic rod 5, and the two ends of the pull rope 13 are respectively fixedly connected to the arc plate 18 and the second hoop semi-ring 62, When the arc plate 18 pushes the first hoop half ring 61 to rotate, the first hoop half ring 61 and the second hoop half ring 62 move away from each other, the arc plate 18 moves and squeezes the elastic compression block 17, the elastic compression block 17 is compressed, and when the pull rope 13 is cut off, the first hoop half ring 61 and the second hoop half ring 62 are driven by the elastic pull rod 12 to rotate and get close to each other, and the arc plate 18 moves under the drive of the elastic compression block 17, so that the arc plate 18 partially extends into the second arc groove 621;

[0044] A plurality of extending fixing rods 19 extending out of the outer plate body of the arc plate 18 are movably arranged in the arc plate 18, and the sizes of all the extending fixing rods 19 are successively increased in the direction away from the telescopic rod 5. During the movement of the arc plate 18, the plurality of extending fixing rods 19 with increasing sizes successively pass through the plurality of fixing holes 26 with increasing sizes, and the larger extending fixing rods 19 cannot enter the smaller fixing holes 26, so as to avoid the extending fixing rods 19 being stuck in advance and unable to continue to move, so that the first hoop half ring 61 and the second hoop half ring 62 are not closed thoroughly enough. When the first hoop half ring 61 and the second hoop half ring 62 are completely closed, the extending fixing rods 19 are extended into the matching fixing holes 26 to achieve the stuck positioning, and part of the extending fixing rods 19 are extended into the fixing holes 26 of the first hoop half ring 61, and part of the extending fixing rods 19 are extended into the fixing holes 26 of the second hoop half ring 62, so that the first hoop half ring 61 and the second hoop half ring 62 are relatively fixed and cannot be separated again, thereby improving the clamping strength between the hoop 6 and the column 28;

[0045] Any of the extended fixing rods 19 extends to the outside of the arc plate 18 under the push of the second elastic block 20, and the extended fixing rod 19 cannot be extended due to the squeezing of the inner wall of the first arc groove 611. When the extended fixing rod 19 moves to the corresponding fixing hole 26, the extended fixing rod 19 extends into the fixing hole 26 under the action of the second elastic block 20 to be fixed, and an elastic squeezing block 21 extending to the inside of the arc plate 18 is provided on one side of the extended fixing rod 19, and the elastic squeezing block 21 is blocked by the baffle 22. The baffle 22 is close to the plate body of the extended fixing rod 19 and is provided with a through groove 221 for the elastic squeezing block 21 to extend out. A push rod 23 is provided on the other side of the extended fixing rod 19, and the push rod 23 is squeezed on the extended fixing rod 19 under the push of the third elastic block 24, and a through groove for the push rod 23 to pass through is provided on the extended fixing rod 19 The push rod 23 passes through the through hole 191 and pushes the baffle 22. When the extended fixing rod 19 extends into the corresponding fixing hole 26, the through hole 191 of the extended fixing rod 19 moves to the push rod 23. The push rod 23 passes through the through hole 191 and pushes the baffle 22 under the action of the third elastic block 24, so that the through groove 221 of the baffle 22 moves to the elastic extrusion block 21. The elastic extrusion block 21 passes through the extrusion groove 27 under its own elastic force and is squeezed on the column 28, further improving the clamping strength between the hoop 6 and the column 28. At the same time, the push rod 23 is inserted into the through hole 191 so that the extended fixing rod 19 cannot move, preventing the extended fixing rod 19 from falling off from the fixing hole 26, improving the fixing strength of the extended fixing rod 19 and the fixing hole 26, and further improving the clamping strength between the hoop 6 and the column 28.

[0046] The second hoop half ring 62 is provided with a second arc groove 621 for inserting the arc plate 18, and the first arc groove 611 and the second arc groove 621 are provided with a fixing hole 26 extending out from the corresponding extending fixing rod 19, and the first arc groove 611 and the second arc groove 621 are provided with an extrusion groove 27 extending out from the corresponding elastic extrusion block 21.

[0047] The arc plate 18 is provided with an extended fixed groove 181 with an opening toward the outside of the arc plate 18, and the extended fixed groove 181 is connected with an extended extrusion groove 182 with an opening toward the inside of the arc plate 18, and the extended fixed rod 19 is movably arranged in the extended fixed groove 181, and one end of the elastic extrusion block 21 is fixedly connected to the inner wall of the extended extrusion groove 182, and the extended extrusion groove 182 is connected with a baffle groove 183, and the baffle 22 is movably inserted into the baffle groove 183, and the baffle groove 183 provides support for the baffle 22 to prevent the baffle 22 from moving under the extrusion of the elastic extrusion block 21, and at the same time, the baffle groove 183 also provides a certain path for the movement of the baffle 22, so that the movement of the baffle 22 is more stable and reliable;

[0048] A fourth elastic block 25 is fixedly connected between the baffle plate 22 and the inner wall of the baffle plate groove 183 . The fourth elastic block 25 is connected to the baffle plate 22 to prevent the baffle plate 22 from leaving the baffle plate groove 183 , thereby further improving the stability of the baffle plate 22 .

[0049] A method for using a special tool for replacing a small-scale photovoltaic inverter on water, using the special tool for replacing a small-scale photovoltaic inverter on water, comprising the following steps:

[0050] A, move the transport ship 1 to the vicinity of the inverter 29 to be replaced, and drive the telescopic rod 5 to extend until the trigger mechanism contacts the column 28 on the inverter 29;

[0051] B, the trigger mechanism is triggered under the pressure of the column 28, so that the hoop 6 is closed and stuck on the column 28, and the telescopic rod 5 stops telescoping and is fixed;

[0052] C. The lifting mechanism 3 rises to provide support until the weight of the inverter 29 is fully supported, and the inverter 29 is removed. The lifting mechanism 3 rises again to lift the inverter 29;

[0053] D. The traction mechanism 4 tows the inverter 29 so that the inverter 29 moves into the transport ship 1.

[0054] Working principle: the telescopic rod 5 moves toward the column 28, and the pressing plate 7 moves toward the column 28 as the telescopic rod 5 extends until the pressing plate 7 contacts the column 28, the telescopic rod 5 continues to move, the pressing plate 7 is pressed on the column 28, the first elastic block 9 is squeezed, and the cutting tool 8 moves toward the direction of extending into the telescopic rod 5;

[0055] When the column 28 completely enters the hoop 6, the cutting tool 8 moves to the pull rope 13 and cuts the pull rope 13, and the rotating wheel 10 rotates under the drive of the elastic pull rod 12, so that the first hoop half ring 61 and the second hoop half ring 62 approach each other and clamp the column 28, and the cutting tool 8 continues to move and contacts the trigger switch, so that the trigger switch is closed, the trigger circuit is connected, and the sensor 16 sends a signal, so that the telescopic rod 5 stops extending and is fixed;

[0056] When the pull rope 13 is cut, the arc plate 18 moves under the drive of the elastic compression block 17, so that the arc plate 18 partially extends into the second arc groove 621, and the extended fixing rod 19 extends into the matching fixing hole 26 to achieve clamping and positioning, and the partially extended fixing rod 19 extends into the fixing hole 26 of the first clamp half ring 61, and the partially extended fixing rod 19 extends into the fixing hole 26 of the second clamp half ring 62, so that the first clamp half ring 61 and the second clamp half ring 62 are relatively fixed and cannot be separated again;

[0057] When the extended fixing rod 19 is extended into the corresponding fixing hole 26, the through hole 191 of the extended fixing rod 19 moves to the push rod 23. Under the action of the third elastic block 24, the push rod 23 passes through the through hole 191 and pushes the baffle 22, so that the through groove 221 of the baffle 22 moves to the elastic extrusion block 21. The elastic extrusion block 21 passes through the extrusion groove 27 under the action of its own elastic force and is squeezed on the column 28, further improving the clamping strength between the clamp 6 and the column 28.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special tool for replacing a small photovoltaic inverter on water, comprising a transport ship (1), wherein the transport ship (1) is provided with a base (2), a lifting mechanism (3) and a traction mechanism (4), and characterized in that: A telescopic rod (5) is mounted on the base (2); an end of the telescopic rod (5) away from the base (2) is movably connected to a clamp (6); and an end of the telescopic rod (5) close to the clamp (6) is provided with a trigger mechanism for controlling the opening and closing of the clamp (6) and the fixing of the telescopic rod (5); The trigger mechanism comprises a pressing plate (7) and a trigger circuit, the pressing plate (7) being located at an end of the telescopic rod (5) away from the base (2), the pressing plate (7) being fixedly connected to a cutting tool (8) extending into the telescopic rod (5), and a first elastic block (9) being fixedly connected between the pressing plate (7) and the telescopic rod (5); The hoop (6) comprises a first hoop half ring (61) and a second hoop half ring (62) located on both sides of the telescopic rod (5); rotating wheels (10) are rotatably arranged on both sides of the telescopic rod (5); the two rotating wheels (10) are respectively fixedly connected to the first hoop half ring (61) and the second hoop half ring (62) through a connecting rod (11); and an elastic pull rod (12) is fixedly connected between the rotating wheel (10) and the inner wall of the telescopic rod (5); The first clamp half ring (61) and the second clamp half ring (62) are connected via a pull rope (13), and the pull rope (13) moves through the telescopic rod (5) and cooperates with the cutting tool (8) to cut it. The trigger circuit comprises a trigger switch, a wire (15) and a sensor (16) connected in sequence. The trigger switch is located on a side of the pull rope (13) away from the cutting tool (8), and the trigger switch cooperates with the cutting tool (8) to trigger so that the sensor (16) controls the telescopic rod (5) to be fixed. The trigger switch comprises two power connection blocks (14).

2. The special tool for replacing a small-scale photovoltaic inverter on water according to claim 1 is characterized in that: The telescopic rod (5) is provided with a tool slot (51) for inserting a cutting tool (8); an end of the tool slot (51) away from the pressure plate (7) is connected to a rope slot (52) for passing a rope (13); a side of the rope slot (52) away from the tool slot (51) is connected to a trigger mechanism slot (53); and a power connection block (14) is fixedly arranged on an inner wall of the trigger mechanism slot (53).

3. The special tool for replacing a small-scale photovoltaic inverter on water according to any one of claims 1-2, characterized in that: A first arc-shaped groove (611) is provided in the first hoop half ring (61), an arc-shaped plate (18) is movably provided in the first arc-shaped groove (611), an elastic compression block (17) is provided between the arc-shaped plate (18) and the inner wall of the first arc-shaped groove (611) close to the telescopic rod (5), and two ends of the pull rope (13) are respectively fixedly connected to the arc-shaped plate (18) and the second hoop half ring (62); A plurality of extending fixing rods (19) extending out of the outer plate body of the arc plate (18) are movably arranged in the arc plate (18), and the sizes of all the extending fixing rods (19) are increased in sequence in a direction away from the telescopic rod (5). Any of the extending fixing rods (19) is pushed toward the outer side of the arc plate (18) by the second elastic block (20), and an elastic extrusion block (21) extending toward the inner side of the arc plate (18) is arranged on one side of the extending fixing rod (19), and the elastic extrusion block (21) is blocked by a baffle (22). ), the baffle (22) is provided with a through slot (221) on the plate body close to the extended fixed rod (19) for the elastic extrusion block (21) to extend out, a push rod (23) is provided on the other side of the extended fixed rod (19), and the push rod (23) is pressed on the extended fixed rod (19) under the push of the third elastic block (24), the extended fixed rod (19) is provided with a through hole (191) for the push rod (23) to pass through, and the push rod (23) passes through the through hole (191) and pushes the baffle (22); The second hoop half ring (62) is provided with a second arc-shaped groove (621) for inserting the arc-shaped plate (18); the first arc-shaped groove (611) and the second arc-shaped groove (621) are provided with fixing holes (26) extending out in cooperation with the corresponding extending fixing rods (19) on the outside; and the first arc-shaped groove (611) and the second arc-shaped groove (621) are provided with extrusion grooves (27) extending out in cooperation with the corresponding elastic extrusion blocks (21) on the inside.

4. The special tool for replacing a small-scale photovoltaic inverter on water according to claim 3 is characterized in that: The arc-shaped plate (18) is provided with an extension fixing groove (181) whose opening faces the outside of the arc-shaped plate (18); the extension fixing groove (181) is connected to an extension extrusion groove (182) whose opening faces the inside of the arc-shaped plate (18); the extension fixing rod (19) is movably arranged in the extension fixing groove (181); one end of the elastic extrusion block (21) is fixedly connected to the inner wall of the extension extrusion groove (182); the extension extrusion groove (182) is connected to a baffle groove (183); and the baffle (22) is movably inserted into the baffle groove (183).

5. The special tool for replacing a small-scale photovoltaic inverter on water according to claim 4 is characterized in that: A fourth elastic block (25) is fixedly connected between the baffle plate (22) and the inner wall of the baffle plate groove (183).

6. A method for using a special tool for replacing a small-scale photovoltaic inverter on water, using the special tool for replacing a small-scale photovoltaic inverter on water as described in any one of claims 1-2 or 4-5, characterized in that: The following steps are included A, moving the transport ship (1) to the vicinity of the inverter (29) to be replaced, and driving the telescopic rod (5) to extend until the trigger mechanism contacts the column (28) on the inverter (29); B, the trigger mechanism is triggered under the pressure of the column (28), so that the clamp (6) is closed and stuck on the column (28), and the telescopic rod (5) stops extending and is fixed; C, the lifting mechanism (3) rises to provide support until the weight of the inverter (29) is fully supported, the inverter (29) is removed, and the lifting mechanism (3) rises again to lift the inverter (29); D. The traction mechanism (4) tows the inverter (29) so that the inverter (29) moves into the transport ship (1).

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