A tool for fast measurement of pv rack branch current

Abstract

The application discloses a kind of for photovoltaic support branch current quick measurement tool, belong to photovoltaic support current measurement technical field, comprising: support rod, the upper end of the support rod is threadedly connected with extension rod, the upper end of the extension rod is threadedly connected with mounting rod;The support rod, extension rod and mounting rod are all hollow;The mounting rod is provided with the measuring member of measuring branch current;The measuring member includes the jaw head of rotation installation in the upper end of mounting rod, the inner wall of the mounting rod is provided with elastic support, and the elastic support is clamped with connecting rope, the elastic support is hinged with two number of pull rod group.This application, by detachably installing measuring member on mounting rod, operator only needs to hold support rod, then press presser, and then sequentially complete the measurement of each photovoltaic support branch current, without the aid of climbing tool, also without frequently moving, greatly improve the convenience and work efficiency of measurement operation.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic bracket current measurement technology, and in particular to a rapid measurement tool for photovoltaic bracket branch current. Background Technology

[0002] Solar photovoltaic (PV) mounting systems are specialized support structures used to arrange, install, and fix solar panels in a photovoltaic power generation system. Common materials include aluminum alloy, carbon steel, and stainless steel. A PV mounting branch, which is the PV string (DC circuit) installed on the mounting system in a specific area, is the smallest unit for electrical monitoring and fault diagnosis in the system.

[0003] Currently, to address abnormal current faults in photovoltaic support branches, operators typically need to use digital clamp meters and climbing tools to check the current in each branch one by one. However, most photovoltaic power stations are currently built in swampy areas, which are characterized by muddy and slippery terrain with undulating elevations, posing significant challenges to workers' movement and climbing. At the same time, the high water table and poor soil stability in swampy areas further exacerbate safety risks during operations, making it easy for collapses, slips, and other accidents to occur, seriously threatening the personal safety of workers.

[0004] Furthermore, the height of photovoltaic brackets is usually around 4 meters. Due to geographical constraints, conventional operating methods and equipment are difficult to implement effectively, resulting in low efficiency in troubleshooting. In wetland environments, completing the same task often requires more time and resources, significantly increasing the overall operation and maintenance costs. In summary, conducting photovoltaic branch fault diagnosis in swampy environments faces many challenges and significant shortcomings. Therefore, a rapid measurement tool for photovoltaic bracket branch current is proposed to address these issues. Summary of the Invention

[0005] (a) Purpose of the invention To address the technical problems existing in the background art, this invention proposes a rapid measurement tool for branch current of photovoltaic brackets. It has the advantages of simple structure, convenient operation, strong adaptability, and convenient disassembly and maintenance. It solves the problem of low efficiency in branch current investigation caused by difficulties in high-altitude operations and significant safety hazards in complex terrain.

[0006] (II) Technical Solution This invention provides a tool for rapid measurement of branch current of a photovoltaic support, comprising: a support rod, wherein an extension rod is threadedly connected to the upper end of the support rod, and an installation rod is threadedly connected to the upper end of the extension rod; The support rod, extension rod, and mounting rod are all hollow. The mounting rod is equipped with a measuring element for measuring branch current; The measuring component includes a clamp head rotatably mounted on the upper end of a mounting rod. An elastic support is provided on the inner wall of the mounting rod, and a connecting rope is clamped on the elastic support. A set of two pull rods is hinged to the elastic support, and the end of the pull rod away from the elastic support is hinged to the clamp head. A clamping component is snapped onto the extension rod, and an ammeter is installed at the end of the clamping component away from the extension rod, and the ammeter is electrically connected to the clamp head; The end of the support rod away from the extension rod is provided with a pressing member, and the pressing member is fixed to the end of the connecting rope away from the elastic support member.

[0007] Preferably, the upper end of the mounting rod is fixedly connected to two support blocks, and a support shaft passing through the support blocks is rotatably connected between the two support blocks. The clamp head consists of two movable clamps, and the two movable clamps are symmetrically rotatably mounted on the support shaft.

[0008] Preferably, each of the two movable clamps is equipped with a U-shaped block on the side near the pull rod, and both U-shaped blocks are hinged to the pull rod via a pivot.

[0009] Preferably, the lower ends of the extension rod and the mounting rod are provided with protrusions, and the outer surface of the protrusions is provided with external threads. The upper ends of the support rod and the extension rod are provided with threaded grooves, and the threaded grooves are adapted to the external threads on the outer surface of the protrusions.

[0010] Preferably, the elastic support includes a support ring fixedly connected to the inner wall of the mounting rod, a slider located above the support ring is slidably connected to the inner wall of the mounting rod, a plurality of support springs are fixedly connected between the slider and the support ring, a locking screw extending into the middle of the slider is threadedly connected, and the end of the locking screw away from the slider passes through the mounting rod, and the end of the pull rod away from the pliers head is hinged to the slider.

[0011] Preferably, the middle part of the slider has a locking hole for the end of the connecting rope away from the support rod to pass through, and the inner wall of the mounting rod has a clearance hole for the locking screw to slide, and the clearance hole also makes it easy to observe the connecting rope passing through the locking hole.

[0012] Preferably, the locking hole is convex in shape, the middle of the slider is provided with a threaded hole for connecting the locking screw, and the threaded hole is adapted to the thread on the outer surface of the locking screw, and the threaded hole is connected to the locking hole, and the end of the locking screw near the connecting rope is tapered.

[0013] Preferably, the clamping member includes a sleeve that is snapped onto the outer surface of the extension rod, a connecting rod that is fixedly connected to the sleeve, a connecting block that is fixedly connected to the end of the connecting rod away from the sleeve, two symmetrically distributed clamping blocks that are slidably connected to the outer surface of the connecting block, a groove for the connecting block to slide on the end of the clamping block near the connecting block, and a connecting spring that is fixedly connected between the groove on the clamping block and the connecting block.

[0014] Preferably, the sleeve is arc-shaped and is an elastic plastic sleeve, and an anti-slip rubber pad is fixedly connected to the inner peripheral wall of the sleeve. The clamping block is L-shaped and an anti-slip rubber pad is fixedly connected to the inner side of the clamping block.

[0015] Preferably, the pressing member includes a grip rod fixedly connected to the outer surface of the support rod at the end away from the extension rod. The grip rod is concave, and a pressure rod is hinged to the middle of the concave part of the grip rod. The connection end of the pressure rod and the grip rod is fixed to the end of the connecting rope away from the elastic support member.

[0016] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: 1. This rapid measurement tool for photovoltaic bracket branch current allows operators to measure the current of each photovoltaic bracket branch sequentially by detachably mounting the measuring component on the mounting rod. Operators only need to hold the support rod and press the pressing component. This eliminates the need for climbing tools and frequent movement, greatly improving the convenience and efficiency of the measurement operation.

[0017] 2. This rapid measurement tool for photovoltaic bracket branch current has protrusions at the lower ends of both the extension rod and the mounting rod, forming a threaded connection structure with the threaded grooves at the upper ends of the support rod and the extension rod. Operators can flexibly add extension rods according to the actual height of the photovoltaic bracket, making the tool adaptable to measurement scenarios at different heights, which significantly improves the overall adaptability of the structure.

[0018] 3. This rapid measurement tool for photovoltaic bracket branch current uses clamps with a rotatable support head via a support block and a support shaft. It is also rotatably connected to the pull rod via a U-shaped block. The ammeter is fixed to the extension rod by a clamping device. This structure facilitates easy assembly and disassembly of the measuring component, allowing operators to quickly assemble it onto the mounting rod and extension rod. It also facilitates subsequent disassembly and maintenance, effectively improving the convenience of assembly and maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the connection between the extension rod and the mounting rod structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a three-dimensional sectional view of the elastic support structure of the present invention; Figure 5 This is a three-dimensional sectional view of the clamping component structure of the present invention; Figure 6 This is a cross-sectional view of the connection between the support rod and the pressing component of the present invention.

[0020] Reference numerals: 1. Support rod; 2. Extension rod; 3. Mounting rod; 4. Measuring component; 41. Connecting rope; 42. Elastic support component; 421. Support ring; 422. Support spring; 423. Locking screw; 424. Slider; 425. Locking hole; 43. Pull rod; 44. Pliers head; 45. Clearance hole; 46. Ammeter; 47. Support block; 48. Support shaft; 49. U-shaped block; 5. Clamping component; 51. Clip; 52. Connecting rod; 53. Connecting block; 54. Clamping block; 55. Connecting spring; 6. Pressing component; 61. Grip rod; 62. Pull rod; 7. Protrusion. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0022] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] like Figure 1-6As shown, the present invention proposes a rapid measurement tool for the branch current of a photovoltaic support, comprising: a support rod 1, an extension rod 2 threadedly connected to the upper end of the support rod 1, and an installation rod 3 threadedly connected to the upper end of the extension rod 2; Support rod 1, extension rod 2 and mounting rod 3 are all hollow; The mounting rod 3 is equipped with a measuring element 4 for measuring branch current; The measuring component 4 includes a clamp head 44 rotatably mounted on the upper end of the mounting rod 3. An elastic support 42 is provided on the inner wall of the mounting rod 3, and a connecting rope 41 is clamped on the elastic support 42. A set of two pull rods 43 are hinged on the elastic support 42, and the end of the pull rod 43 away from the elastic support 42 is hinged to the clamp head 44. An extension rod 2 is fitted with a clamping member 5, and an ammeter 46 is installed at the end of the clamping member 5 away from the extension rod 2. The ammeter 46 is electrically connected to the clamp head 44. A pressing element 6 is provided at the end of the support rod 1 away from the extension rod 2, and the pressing element 6 is fixed to the end of the connecting rope 41 away from the elastic support 42.

[0025] In this embodiment, the extended and detachable measuring element 4 installed on the mounting rod 3 allows the operator to easily hold the support rod 1 and then use the pressing element 6 in conjunction with the measuring element 4 to measure the branch current on the photovoltaic bracket sequentially. This eliminates the need for the operator to use climbing tools or frequently walk around to measure, thus improving the convenience of the current measurement process and enhancing the measurement effect.

[0026] It should be noted that the clamp head 44, which is electrically connected to the ammeter 46, together with the ammeter 46 form a digital clamp meter. Since the digital clamp meter is a known device for detecting current, its working principle for detecting current will not be described in detail in this article.

[0027] The upper end of the mounting rod 3 is fixedly connected to two support blocks 47. A support shaft 48 is rotatably connected between the two support blocks 47, passing through the support blocks 47. The clamp head 44 consists of two movable clamps, which are symmetrically mounted on the support shaft 48. The lower middle part of the two movable clamps is concave and convex at the end connected to the support shaft 48. The middle part of the support shaft 48 is provided with a groove for the concave and convex ends of the two movable clamps to rotatably connect, so that the two movable clamps can rotate stably on the support shaft 48 and not separate from the support shaft 48. The outer surface of the support shaft 48 passing through the support block 47 is threaded, and a nut is threadedly connected to the thread of the support shaft 48 to lock the two ends of the support shaft 48 on the two support blocks 47.

[0028] In addition, U-shaped blocks 49 are installed on the side of each of the two movable clamps near the pull rod 43, and the two U-shaped blocks 49 are hinged to the pull rod 43 respectively through a rotating shaft. At the same time, a round hole is opened at the end of the pull rod 43 connected to the rotating shaft for the rotating shaft to pass through, and the outer surface of the end of the rotating shaft that passes through the U-shaped block 49 is threaded, and a nut is also threaded to the thread of the rotating shaft, so that both ends of the rotating shaft can also be locked on the U-shaped block 49 by the nut, providing rotational support for the pull rod 43 and realizing the support and installation of the clamp head 44.

[0029] Furthermore, both the lower ends of the extension rod 2 and the mounting rod 3 are provided with protrusions 7, and the outer surface of the protrusions 7 is provided with external threads. The upper ends of both the support rod 1 and the extension rod 2 are provided with threaded grooves, and the threaded grooves are adapted to the external threads on the outer surface of the protrusions 7, so that the lower ends of the extension rod 2 and the mounting rod 3 can be threaded onto the upper ends of the support rod 1 and the extension rod 2 respectively. At the same time, one or more extension rods 2 can be added between the extension rod 2 and the support rod 1 to increase the overall length, thereby facilitating the operator to use the entire measuring tool to measure photovoltaic brackets of different heights.

[0030] In an optional embodiment, the elastic support 42 includes a support ring 421 fixedly connected to the inner wall of the mounting rod 3, a slider 424 slidably connected to the inner wall of the mounting rod 3 above the support ring 421, a plurality of support springs 422 fixedly connected between the slider 424 and the support ring 421, a locking screw 423 extending into the middle of the slider 424 is threadedly connected, and the end of the locking screw 423 away from the slider 424 passes through the mounting rod 3, and the end of the pull rod 43 away from the clamp head 44 is hinged to the slider 424.

[0031] In this embodiment, since the middle of the slider 424 is provided with a locking hole 425 for the connecting rope 41 to pass through, and the locking hole 425 is convex, when the connecting rope 41 passes through the locking hole 425 and the locking screw 423 is rotated to abut and squeeze the connecting rope 41, the end of the connecting rope 41 away from the pressing member 6 can be locked and fixed on the slider 424. The stretched connecting rope 41 can pull the slider 424 to slide downward along the vertical horizontal plane and squeeze the support spring 422.

[0032] It should be noted that the middle of the slider 424 is provided with a locking hole 425 for the end of the connecting rope 41 away from the support rod 1 to pass through. The inner wall of the mounting rod 3 is provided with a clearance hole 45 for the locking screw 423 to slide. The clearance hole 45 also makes it easy to observe the connecting rope 41 passing through the locking hole 425. The clearance hole 45 provides the locking screw 423 on the slider 424 with sliding space when it slides up and down with the slider 424. At the same time, the clearance hole 45 also makes it easy for the operator to observe whether the connecting rope 41 passes smoothly through the locking hole 425 when passing one end of the connecting rope 41 through the locking hole 425.

[0033] The locking hole 425 is convex in shape, and the middle of the slider 424 is provided with a threaded hole for connecting the locking screw 423. The threaded hole is adapted to the thread on the outer surface of the locking screw 423, so that the locking screw 423 can be screwed into and out of the convex part of the locking hole 425 during rotation. The threaded hole is connected to the locking hole 425, and the end of the locking screw 423 near the connecting rope 41 is tapered. Through the tapered part of the locking screw 423, the tightened locking screw 423 abuts against and locks the connecting rope 41 that passes through the locking hole 425.

[0034] In an optional embodiment, the clamping member 5 includes a sleeve 51 that snaps onto the outer surface of the extension rod 2. A connecting rod 52 is fixedly connected to the sleeve 51. A connecting block 53 is fixedly connected to the end of the connecting rod 52 away from the sleeve 51. Two symmetrically distributed clamping blocks 54 are slidably connected to the outer surface of the connecting block 53. A groove for sliding the connecting block 53 is provided at the end of the clamping block 54 near the connecting block 53. A connecting spring 55 is fixedly connected between the groove on the clamping block 54 and the connecting block 53.

[0035] In this embodiment, the connecting rod 52, connecting block 53 and clamping block 54 are clamped and supported on the extension rod 2 or mounting rod 3 by the clamping sleeve 51. Then, by pulling the two clamping blocks 54 to slide towards opposite sides and stretching the connecting spring 55, the ammeter 46 can be placed between the two clamping blocks 54. After releasing the two clamping blocks 54 and allowing the clamping blocks 54 to be reset by the elastic force generated by the connecting spring 55, the reset two clamping blocks 54 can clamp and fix the ammeter 46.

[0036] It should be noted that the sleeve 51 is arc-shaped and is an elastic plastic sleeve, so that the sleeve 51 can be pressed and snapped onto the extension rod 2 or support rod 1 through its arc-shaped notch during the pressing process. The inner circumferential wall of the sleeve 51 is fixedly connected with an anti-slip rubber pad to increase the friction between the inner wall of the sleeve 51 and the extension rod 2 or support rod 1 after the sleeve 51 is snapped. The clamping block 54 is L-shaped, and the inner side of the clamping block 54 is fixedly connected with an anti-slip rubber block, so that after the L-shaped clamping block 54 is stretched to clamp the ammeter 46, the friction between the clamping block 54 and the ammeter 46 is increased by the contact of the anti-slip rubber block.

[0037] In an optional embodiment, the pressing member 6 includes a gripping rod 61 fixedly connected to the outer surface of the support rod 1 away from the extension rod 2. The gripping rod 61 is concave, and a pressure rod 62 is hinged to the middle of the concave part of the gripping rod 61. The connection end of the pressure rod 62 and the gripping rod 61 is fixed to the end of the connecting rope 41 away from the elastic support member 42.

[0038] In this embodiment, since the end of the pressure rod 62 is hinged to the grip rod 61 and the end of the pressure rod 62 is fixed to the connecting rope 41, the pressure rod 62 can stretch the connecting rope 41 during the pressing and rotating process. Then, the connecting rope 41 pulls the slider 424 to slide on the inner wall of the mounting rod 3 toward the support ring 421 and compresses the support spring 422. The sliding slider 424 can then pull the clamp head 44 to unfold via the pull rod 43, so that the operator can hold the support rod 1 and measure the branch current to be tested through the clamp head 44.

[0039] The working principle in the above embodiments is as follows: The opening and closing mechanism of the pliers: The operator holds the pressing part 6 at the lower end of the support rod 1, which is a lever structure composed of the grip rod 61 and the pressing rod 62. When the index finger and the web of the thumb touch the grip rod 61, and then the other fingers hook and press the pressing rod 62, the pressing rod 62 rotates around the hinge point, which drives the connecting rope 41 fixed to it to be pulled downward. The connecting rope 41 is pulled downward along the interior of the hollow rod body, and its far end passes through the interior of the mounting rod 3 and forms a linkage with the pliers head 44 through the elastic support part 42. When the connecting rope 41 is pulled downward, the slider 424 overcomes the elastic force of the support spring 422 and slides downward along the inner wall of the mounting rod 3. Two pull rods 43 are hinged on the side of the slider 424 away from the support ring 412, and the other ends of the two pull rods 43 are respectively hinged to the two movable clamps of the clamp head 44. The two movable jaws of the clamp head 44 are rotatably mounted on the support block 47 via the support shaft 48. The support block 47 is fixed to the upper end of the mounting rod 3. When the slider 424 moves down, the pull rod 43 pulls down the lower end of the movable jaws, causing the two movable jaws to rotate outward around the support shaft 48, i.e. to opposite sides, thereby opening the jaws. When the pressure rod 62 is released, the support spring 422 pushes the slider 424 to return to its original position, and the pull rod 43 pushes the movable clamp upward, causing the two movable clamps to close inward, i.e., on the opposite side, and restore the clamping state. Current measurement and signal transmission: When the two movable clamps of the clamp head 44 are closed, they clamp the cable of the branch to be tested and collect the current signal using the principle of electromagnetic induction. The clamp head 44 is electrically connected to the ammeter 46. The ammeter 46 is fixed to the extension rod 2 by the clamping part 5, so that the operator can directly read the measurement value when holding the lower end of the rod. The specific structure of the clamping component 5 is as follows: the clamp 51 is snapped onto the extension rod 2, and the connecting block 53 is fixed by the connecting rod 52. The two sides of the connecting block 53 are slidably connected to the clamping blocks 54 by the connecting spring 55. The two clamping blocks 54 clamp the ammeter 46 under the action of the spring. Adjusting the length of the entire rod: The support rod 1, extension rod 2 and mounting rod 3 are connected by threads to achieve detachable assembly. The lower end of the extension rod 2 and mounting rod 3 is provided with a protrusion 7 with external threads. The upper end of the support rod 1 and extension rod 2 is provided with a matching threaded groove. The operator can add one or more extension rods 2 between the support rod 1 and mounting rod 3 according to the actual height of the photovoltaic bracket, so that the clamp head 44 can easily reach the position of the branch to be tested without climbing and without frequent movement.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid measurement tool for branch current of a photovoltaic support structure, characterized in that, include: Support rod (1), the upper end of which is threadedly connected to extension rod (2), and the upper end of extension rod (2) is threadedly connected to mounting rod (3). The support rod (1), extension rod (2) and mounting rod (3) are all hollow; The mounting rod (3) is equipped with a measuring element (4) for measuring branch current; The measuring component (4) includes a clamp head (44) rotatably mounted on the upper end of the mounting rod (3). An elastic support (42) is provided on the inner wall of the mounting rod (3), and a connecting rope (41) is clamped on the elastic support (42). A set of two pull rods (43) are hinged on the elastic support (42), and the end of the pull rod (43) away from the elastic support (42) is hinged to the clamp head (44). A clamping member (5) is snapped onto the extension rod (2), and an ammeter (46) is installed at the end of the clamping member (5) away from the extension rod (2), and the ammeter (46) is electrically connected to the pliers head (44); The support rod (1) is provided with a pressing member (6) at the end away from the extension rod (2), and the pressing member (6) is fixed to the end of the connecting rope (41) away from the elastic support member (42).

2. The rapid measurement tool for photovoltaic bracket branch current according to claim 1, characterized in that, The upper end of the mounting rod (3) is fixedly connected to two support blocks (47), and a support shaft (48) passing through the support blocks (47) is rotatably connected between the two support blocks (47). The pliers (44) consists of two movable pliers, and the two movable pliers are symmetrically rotatably mounted on the support shaft (48).

3. The rapid measurement tool for photovoltaic bracket branch current according to claim 2, characterized in that, Both of the movable clamps are equipped with U-shaped blocks (49) on the side near the pull rod (43), and both U-shaped blocks (49) are hinged to the pull rod (43) respectively through a pivot.

4. A rapid measurement tool for photovoltaic bracket branch current according to claim 1, characterized in that, The lower ends of the extension rod (2) and the mounting rod (3) are provided with protrusions (7), and the outer surface of the protrusions (7) is provided with external threads. The upper ends of the support rod (1) and the extension rod (2) are provided with threaded grooves, and the threaded grooves are adapted to the external threads on the outer surface of the protrusions (7).

5. A rapid measurement tool for branch current of a photovoltaic support according to claim 1, characterized in that, The elastic support (42) includes a support ring (421) fixedly connected to the inner wall of the mounting rod (3). A slider (424) located above the support ring (421) is slidably connected to the inner wall of the mounting rod (3). A plurality of support springs (422) are fixedly connected between the slider (424) and the support ring (421). A locking screw (423) extending into the middle of the slider (424) is threadedly connected to the middle of the slider (424). The end of the locking screw (423) away from the slider (424) passes through the mounting rod (3). The end of the pull rod (43) away from the pliers (44) is hinged to the slider (424).

6. A rapid measurement tool for photovoltaic bracket branch current according to claim 5, characterized in that, The middle part of the slider (424) is provided with a locking hole (425) for the connecting rope (41) to pass through the end away from the support rod (1). The inner wall of the mounting rod (3) is provided with a clearance hole (45) for the locking screw (423) to slide. The clearance hole (45) also makes it easy to observe the connecting rope (41) passing through the locking hole (425).

7. A rapid measurement tool for photovoltaic bracket branch current according to claim 6, characterized in that, The locking hole (425) is convex in shape. The middle part of the slider (424) is provided with a threaded hole for connecting the locking screw (423). The threaded hole is adapted to the thread on the outer surface of the locking screw (423). The threaded hole is connected to the locking hole (425). The end of the locking screw (423) near the connecting rope (41) is tapered.

8. A rapid measurement tool for photovoltaic bracket branch current according to claim 1, characterized in that, The clamping member (5) includes a sleeve (51) that is snapped onto the outer surface of the extension rod (2). A connecting rod (52) is fixedly connected to the sleeve (51). A connecting block (53) is fixedly connected to one end of the connecting rod (52) away from the sleeve (51). Two symmetrically distributed clamping blocks (54) are slidably connected to the outer surface of the connecting block (53). A groove for sliding of the connecting block (53) is provided at one end of the clamping block (54) near the connecting block (53). A connecting spring (55) is fixedly connected between the groove on the clamping block (54) and the connecting block (53).

9. A rapid measurement tool for branch current of a photovoltaic support according to claim 8, characterized in that, The sleeve (51) is arc-shaped and is an elastic plastic sleeve. The inner circumferential wall of the sleeve (51) is fixedly connected with an anti-slip rubber pad. The clamp (54) is L-shaped and the inner side of the clamp (54) is fixedly connected with an anti-slip rubber pad.

10. A rapid measurement tool for branch current of a photovoltaic support according to claim 1, characterized in that, The pressing member (6) includes a grip (61) fixedly connected to the outer surface of the support rod (1) away from the extension rod (2). The grip (61) is concave, and a pressure rod (62) is hinged to the middle of the concave part of the grip (61). The end of the pressure rod (62) connected to the grip (61) is fixed to the end of the connecting rope (41) away from the elastic support member (42).

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