A connection structure of photovoltaic modules

Abstract

The present invention discloses a connection structure of a photovoltaic assembly, which relates to the field of photovoltaic technology and comprises two groups of photovoltaic panel mounting mechanisms, which can be close to and away from each other, and each group of mounting mechanisms comprises plugs symmetrically fixedly connected to both ends of a first rectangular rod, the first rectangular rod is arranged at the upper corner of the plug facing the photovoltaic panel, and the lower corner of the plug facing away from the center of the photovoltaic panel is fixedly connected to the second rectangular rod, the center of the plug is fixedly connected to a long axis, and the outer side of the long axis is slidably connected to a plurality of H-shaped plates. The connection structure of the photovoltaic assembly provided by the present invention is more convenient to install and is simpler than the installation method in the prior art which requires drilling holes and screwing in multiple places.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and more particularly to a connection structure of a photovoltaic module. Background Art

[0002] Photovoltaic technology is one of the key technologies for directly converting sunlight into electrical energy. It is widely used in residential, commercial and industrial fields around the world. With the growth of demand for renewable energy, photovoltaic technology has attracted widespread attention due to its environmental protection and sustainability. Currently, photovoltaic modules on the market are mainly made of silicon-based materials, including monocrystalline silicon, polycrystalline silicon and thin-film solar cells. These modules are usually composed of multiple solar cells connected in series, which generate electricity by converting sunlight into direct current. In addition, photovoltaic modules also include auxiliary structures such as backplanes, packaging materials, and frames to improve their durability and protection performance.

[0003] However, most existing photovoltaic modules are installed by drilling holes and then fixing the solar panels with bolts. This fixing method is not only cumbersome, but also requires high precision and is inconvenient during installation.

[0004] Therefore, it is necessary to propose a connection structure of photovoltaic modules to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that most of the existing photovoltaic components are installed by drilling holes and then fixing the solar panels with bolts. This fixing method is not only cumbersome, but also requires high precision and is relatively inconvenient during installation.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A connection structure of a photovoltaic assembly, comprising two groups of photovoltaic panel mounting mechanisms, the two groups of mounting mechanisms can be close to and away from each other, each group of mounting mechanisms comprises plugs symmetrically fixedly connected to both ends of a first rectangular rod, the first rectangular rod is arranged at the upper corner of the plug facing the photovoltaic panel, the lower corner of the plug facing away from the center of the photovoltaic panel is fixedly connected to a second rectangular rod, the center of the plug is fixedly connected to a long axis, the outer side of the long axis is slidably connected to a plurality of H-shaped plates, and at least two H-shaped plates are required for the installation of each photovoltaic panel;

[0008] The front and rear ends of the photovoltaic panel are symmetrically fixedly connected to the limit plate, the front and rear ends of the upper surface of the photovoltaic panel are symmetrically provided with second rectangular sliding grooves, and the second rectangular sliding groove is provided with a second tooth groove on a side away from the center of the photovoltaic panel;

[0009] The H-shaped plate can be rotated around the long axis to the horizontal and vertical directions, respectively, for disassembling and installing the photovoltaic panel. The upper end of the H-shaped plate is provided with a limit mechanism for limiting the upward and downward and left and right movement of the photovoltaic panel. The lower end of the H-shaped plate is provided with a locking mechanism for temporarily locking the H-shaped plate and the second rectangular rod. When the locking mechanism is locked, it is used to drive the limit mechanism to limit the photovoltaic panel.

[0010] When the two groups of the mounting mechanisms are moved away from each other, the first rectangular rod is in contact with the limiting plate to limit the forward and backward movement of the photovoltaic panel;

[0011] The lower end of the plug is fixedly connected to a mounting rod, and the lower end of the mounting rod can be inserted into a first rectangular slide groove opened at the left and right ends of the frame; the upper end of the mounting rod is rotatably connected to a connecting plate, and the end of the connecting plate away from the mounting rod is rotatably connected to a connecting block; a cross-shaped slider is slidably connected in the cross-shaped slide groove opened at the left and right ends of the frame, and a threaded rod is rotatably connected in the cross-shaped slider, and a threaded hole for cooperating with the threaded rod for threaded connection is opened in the middle of the connecting block.

[0012] Furthermore, the limiting mechanism includes a right-angled lower pressure plate with a horizontal slide groove, a connecting rod slidably connected to the horizontal slide groove, a block fixedly connected to both ends of the connecting rod, a round rod slidably connected to the middle of the block, and a second spring fixedly connected to the lower end of the block, the upper end of the H-shaped plate is provided with a first rectangular through hole for installing the round rod, and one end of the second spring away from the block is fixedly connected to the lower end of the first rectangular through hole;

[0013] One end of the right-angled lower pressure plate away from the H-shaped plate faces downward and can be inserted into the second rectangular slide groove. The side of the right-angled lower pressure plate at this end facing the H-shaped plate is fixed with a first rack that can be inserted into the second tooth groove. When the locking mechanism is locked, it is used to drive the first rack to be inserted into the second tooth groove.

[0014] Furthermore, the locking mechanism includes a pull-down plate slidably connected to the H-shaped plate, a follower plate that is deformably arranged on the upper end of the pull-down plate, and a pull-down assembly for pulling down and temporarily fixing the position of the pull-down plate. The upper end of the follower plate is fixedly connected to the lower end surface of the horizontal slide groove. When the pull-down plate is parallel to the follower plate, the first rack is inserted into the second tooth groove.

[0015] Furthermore, the pull-down assembly includes a limit rod fixedly connected to the lower end of the H-shaped plate, a pull belt fixedly connected to the lower end of the pull-down plate, a first rotating plate rotatably connected to the upper end of the lower half of the H-shaped plate, and a locking assembly for temporarily fixing the first rotating plate and the second rectangular rod. Rotating the first rotating plate drives the pull belt to slide along the limit rod, thereby driving the pull-down plate to move downward.

[0016] Furthermore, a second rectangular through hole is provided on the upper half of the first rotating plate, a first tooth groove is provided on the lower end surface of the second rectangular rod, the locking assembly includes a second rotating plate rotatably connected to the lower end of the second rectangular through hole, a second limiting plug plate elastically slidably connected to the second rotating plate, and a second rack fixedly connected to the upper end surface of the second limiting plug plate and connectable to the first tooth groove, and a third rectangular through hole is provided on the pull-down plate for the second limiting plug plate and the second rack to pass through.

[0017] Furthermore, a mounting groove is provided in the middle of the cross-shaped slider, a flower wheel is fixedly connected to the outer side surface of the threaded rod located in the mounting groove, a first spring is fixedly connected to the upper end of the mounting groove, a first limit plug plate is fixedly connected to the lower end of the first spring, a fourth rectangular through hole for the first limit plug plate to pass through is provided at the lower end of the cross-shaped slider, and slots for plugging in the first limit plug plate are evenly provided at the lower end of the cross-shaped slide groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The photovoltaic panel connection structure provided by the present invention is more convenient to install and is simpler than the installation method in the prior art which requires drilling holes and screwing in multiple places. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a cross-sectional schematic diagram of the connection structure at the frame of the present invention;

[0022] Figure 3 It is a three-dimensional schematic diagram of the installation mechanism of the present invention installing the photovoltaic panel;

[0023] Figure 4 It is a three-dimensional schematic diagram of the connection structure at the H-shaped plate in the present invention;

[0024] Figure 5 It is a three-dimensional side view schematic diagram of the connection structure at the H-shaped plate in the present invention;

[0025] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the connection structure at the H-shaped plate in the present invention;

[0026] Figure 7 For the present invention Figure 1 The enlarged schematic diagram at A in the middle;

[0027] Figure 8 For the present invention Figure 2 The enlarged schematic diagram of point B in the middle;

[0028] Fig. 9It is a three-dimensional schematic diagram of the pull-down plate and the driven plate in the present invention.

[0029] Figure numerals: 1, frame; 2, cross-shaped slide; 3, first rectangular slide; 4, cross-shaped slider; 5, threaded rod; 6, mounting groove; 7, flower wheel; 8, first spring; 9, fourth rectangular through hole; 10, first limit plug plate; 11, slot; 12, plug; 13, mounting rod; 14, connecting plate; 15, connecting block; 16, first rectangular rod; 17, long axis; 18, second rectangular rod; 19, first tooth groove; 20, H-shaped plate; 21, first rectangular through hole; 22, round rod; 2 3. Block; 24. Second spring; 25. Connecting rod; 26. Right-angle lower pressure plate; 27. Horizontal slide; 28. First rack; 29. ​​Pull-down plate; 30. Follower plate; 31. Pull belt; 32. Limit rod; 33. First rotating plate; 34. Second rectangular through hole; 35. Second rotating plate; 36. Second limit plug plate; 37. Third spring; 38. Second rack; 39. Third rectangular through hole; 40. Photovoltaic panel; 41. Second rectangular slide; 42. Second tooth groove; 43. Limit plate. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-9 , a connection structure of a photovoltaic assembly, including two groups of photovoltaic panel 40 mounting mechanisms, the two groups of mounting mechanisms can be close to and away from each other to support the limit plate 43, each group of mounting mechanisms is symmetrical about the center of the photovoltaic panel 40, and each mounting mechanism includes a plug 12 symmetrically fixedly connected to both ends of a first rectangular rod 16, the first rectangular rod 16 is arranged at the upper corner of the plug 12 facing the photovoltaic panel 40, and the plug 12 is fixedly connected to the lower corner of the photovoltaic panel 40 facing away from the center of the photovoltaic panel 40. The plug 12 is fixedly connected to the center of the plug 12 with a long axis 17, and a plurality of H-shaped plates 20 are slidably connected to the outer side of the long axis 17, that is, a space for the H-shaped plate 20 to rotate is formed between the first rectangular rod 16 and the second rectangular rod 18, and can also be used to limit the rotation angle of the H-shaped plate 20. At least two H-shaped plates 20 are required for the installation of each photovoltaic panel 40, and notches are provided in the upper and lower halves of the H-shaped plates 20;

[0032] The front and rear ends of the photovoltaic panel 40 are symmetrically fixedly connected with a limit plate 43, the limit plate 43 extends downward and exceeds the lower end surface of the photovoltaic panel 40 by a certain distance, the front and rear ends of the upper end surface of the photovoltaic panel 40 are symmetrically provided with a second rectangular slide groove 41, and a second tooth groove 42 is provided on the side of the second rectangular slide groove 41 away from the center of the photovoltaic panel 40;

[0033] Wherein, under the action of the first rectangular rod 16 and the second rectangular rod 18, the H-shaped plate 20 can rotate around the long axis 17 to the horizontal and vertical. When the H-shaped plate 20 is horizontal, the lock on the photovoltaic panel 40 is released, and it is used to disassemble the photovoltaic panel 40. When the H-shaped plate 20 is vertical, it is used to lock and install the photovoltaic panel 40. The upper end of the H-shaped plate 20 is provided with a limit mechanism for limiting the upward and downward and left and right movement of the photovoltaic panel 40. The lower end of the H-shaped plate 20 is provided with a locking mechanism for temporarily locking the H-shaped plate 20 and the second rectangular rod 18. When the locking mechanism is locked, it is used to drive the limit mechanism to limit the photovoltaic panel 40.

[0034] When the two sets of installation mechanisms are away from each other, the first rectangular rod 16 is in contact with the limiting plate 43 to limit the forward and backward movement of the photovoltaic panel 40. In conjunction with the setting of the limiting mechanism and the locking mechanism, more than 10 degrees of freedom of the photovoltaic panel 40 are restricted.

[0035] Specific, combined Figure 4-6 As shown, the limiting mechanism includes a right-angled lower pressing plate 26 with a horizontal sliding groove 27, wherein the right-angled lower pressing plate 26 includes a horizontal plate and a vertical plate, the horizontal sliding groove 27 is opened on the horizontal plate, and the vertical plate is fixed to the lower end of the horizontal plate away from the H-shaped plate 20, and also includes a connecting rod 25 slidably connected to the horizontal sliding groove 27 along the extension direction of the horizontal plate, a block 23 fixedly connected to both ends of the connecting rod 25, a round rod 22 slidably connected to the middle of the block 23, and a second spring 24 fixedly connected to the lower end of the block 23, that is, the horizontal plate can slide up and down and also slide forward and backward, and the upper end of the H-shaped plate 20 is opened with a first rectangular through hole 21 for installing the round rod 22, and the end of the second spring 24 away from the block 23 is fixedly connected to the lower end of the first rectangular through hole 21;

[0036] The right-angle lower pressure plate 26 has one end away from the H-shaped plate 20 facing downward, i.e., the longitudinal plate, which can be inserted into the second rectangular slide groove 41. The side of the longitudinal plate facing the H-shaped plate 20 is fixed with a first rack 28 that can be inserted into the second tooth groove 42. When the locking mechanism is locked, it is used to drive the first rack 28 to be inserted into the second tooth groove 42, thereby limiting the left and right movement of the photovoltaic panel 40.

[0037] Specific, combined Figure 4-6As shown, the locking mechanism includes a pull-down plate 29 slidably connected to the H-shaped plate 20, the pull-down plate 29 passes through the upper and lower ends of the H-shaped plate 20, and also includes a follower plate 30 that is deformably arranged at the upper end of the pull-down plate 29 and a pull-down assembly for pulling down and temporarily fixing the position of the pull-down plate 29. The upper end of the follower plate 30 is fixedly connected to the lower end surface of the horizontal slide groove 27. When the pull-down plate 29 is parallel to the follower plate 30, the first rack 28 is inserted into the second tooth groove 42. During the downward movement of the pull-down plate 29, the right-angle lower pressure plate 26 will be driven to move downward. When the connection between the follower plate 30 and the pull-down plate 29 enters the H-shaped plate 20, the follower plate 30 is squeezed by the H-shaped plate 20 and gradually becomes parallel to the pull-down plate 29, thereby driving the right-angle lower pressure plate 26 to move in the front-rear direction, so that the right-angle lower pressure plate 26 can move up and down and front-rear.

[0038] Specific, combined Figure 4-6 As shown, the pull-down assembly includes a limit rod 32 fixedly connected to the lower end of the H-shaped plate 20, a non-elastic drawstring 31 fixedly connected to the lower end of the pull-down plate 29, a first rotating plate 33 rotatably connected to the upper end of the lower half of the H-shaped plate 20, and a locking assembly for temporarily fixing the first rotating plate 33 and the second rectangular rod 18. Rotating the first rotating plate 33 drives the drawstring 31 to slide along the limit rod 32, so as to drive the pull-down plate 29 to move downward.

[0039] Specific, combined Figure 4-6 As shown, a second rectangular through hole 34 is provided in the upper half of the first rotating plate 33, a first tooth groove 19 is provided on the lower end surface of the second rectangular rod 18, and the locking assembly includes a second rotating plate 35 rotatably connected to the lower end of the second rectangular through hole 34, a second limiting plug plate 36 elastically slidably connected to the second rotating plate 35, and a second rack 38 fixedly connected to the upper end surface of the second limiting plug plate 36 and pluggable into the first tooth groove 19, and a third rectangular through hole 39 is provided on the lower pull-down plate 29 for the second limiting plug plate 36 and the second rack 38 to pass through. When the first rotating plate 33 is rotated to the limit angle, At this time, the second limit plug plate 36 is rotated, and the end of the second limit plug plate 36 is an arc surface until the second limit plug plate 36 can be pressed against the pull-down plate 29 when it is horizontal. At this time, under the action of the third spring 37, the second limit plug plate 36 can be driven to pop out, so that the second rack 38 is inserted into the first tooth groove 19. In order to ensure that the second rack 38 and the first tooth groove 19, the first rack 28 and the second tooth groove 42 are more efficiently aligned, the spacing between adjacent teeth of the first tooth groove 19 and the second tooth groove 42 is set to be consistent, so as to facilitate the matching and plugging of the second rack 38 and the first rack 28.

[0040] Specific, combined Figure 2 , Figure 7 and Figure 8As shown, the lower end of the plug 12 is fixedly connected to a mounting rod 13, and the lower end of the mounting rod 13 can be inserted into the first rectangular slide groove 3 opened at the left and right ends of the frame 1, so that the lower end of the mounting rod 13 can slide along the first rectangular slide groove 3. The lower end of the mounting rod 13 is square, and the upper end is cylindrical. After being inserted into the first rectangular slide groove 3, it can fit the side of the first rectangular slide groove 3, and can also ensure the stability of the frame 1 when moving.

[0041] Specific, combined Figure 8 As shown, a mounting groove 6 is provided in the middle of the cross-shaped slider 4, and a flower wheel 7 is fixedly connected to the outer side of the threaded rod 5 located in the mounting groove 6. In order to ensure that the first limit plug plate 10 can be automatically reset, a first spring 8 is fixedly connected to the upper end of the mounting groove 6, and the lower end of the first spring 8 is fixedly connected to the first limit plug plate 10. A fourth rectangular through hole 9 is provided at the lower end of the cross-shaped slider 4 for the first limit plug plate 10 to pass through, and a slot 11 for the first limit plug plate 10 to be plugged in is evenly provided at the lower end of the cross-shaped slide groove 2. The convex points of the flower wheel 7 must ensure that when one convex point contacts the first limit plug plate 10, it can drive the first limit plug plate 10 to be inserted into the slot 11. In addition, it must be ensured that when two convex points contact the first limit plug plate 10, the first limit plug plate 10 is not pressed down at this time. At this time, the cross-shaped slider 4 can slide back and forth. Since the threaded rod 5 and the connecting block 15 are threadedly connected, the threaded rod 5 itself will not rotate, and the stability of the cooperation between the flower wheel 7 and the first limit plug plate 10 can also be ensured.

[0042] Installation method: First, during installation, insert the installation rod 13 into the first rectangular slot 3, place the photovoltaic panel 40 on the upper end surface of the first rectangular rod 16, then pull the connection block 15 to move the connection block 15 close to the left and right ends of the frame 1, and at the same time move the cross-shaped slider 4 to drive the threaded rod 5 to insert into the threaded hole of the connection block 15. As the threaded rod 5 rotates, the first rectangular rod 16 is driven to tighten the limit plate 43;

[0043] As the threaded rod 5 rotates, the flower wheel 7 is driven to rotate, and the flower wheel 7 drives the first limit plug plate 10 to move downward, so that the first limit plug plate 10 is inserted into the slot 11, and the position of the cross-shaped slider 4 is locked, that is, the connection block 15 and the frame 1 are relatively fixed;

[0044] Then, the H-shaped plate 20 is slid along the long axis 17, so that each photovoltaic panel 40 has two H-shaped plates 20 at the front and rear ends, and then the H-shaped plate 20 is rotated to drive the H-shaped plate 20 to rotate to a vertical position, and then the first rotating plate 33 is rotated, and the first rotating plate 33 pulls the pull belt 31, and the pull belt 31 guided by the limit rod 32 drives the pull-down plate 29 to move downward, and as the pull-down plate 29 moves downward, the right-angled lower pressure plate 26 is driven to press the connecting rod 25 downward, and when the intersection of the driven plate 30 and the pull-down plate 29 enters the H-shaped plate 20, the driven plate 30 is driven to be parallel to the pull-down plate 29, and at the same time, the driven plate 30 drives the horizontal plate of the right-angled lower pressure plate 26 to slide horizontally along the connecting rod 25, so that the longitudinal plate edge of the right-angled lower pressure plate 26 is inserted into the second rectangular slide groove 41, and the first rack 28 is inserted into the second tooth groove 42;

[0045] When the angle of the first rotating plate 33 is rotated to the extreme position, the second rotating plate 35 is then rotated. At this time, the end of the second rotating plate 35 can be rotated to a position that fits the pull-down plate 29. When the second rotating plate 35 is rotated to a horizontal position, under the action of the third spring 37, the second limiting plug plate 36 and the second rack 38 will be pushed out of the third rectangular through hole 39, so that the second rack 38 is inserted into the first tooth groove 19, completing the relative fixation between the H-shaped plate 20 and the second rectangular rod 18, and then completing the installation and connection of the photovoltaic panel 40.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A photovoltaic module connection structure, characterized in that: It includes two groups of photovoltaic panel mounting mechanisms, the two groups of mounting mechanisms can be close to and away from each other, each group of mounting mechanisms includes plugs symmetrically fixedly connected to both ends of a first rectangular rod, the first rectangular rod is arranged at the upper corner of the plug facing the photovoltaic panel, the lower corner of the plug facing away from the center of the photovoltaic panel is fixedly connected to a second rectangular rod, the center of the plug is fixedly connected to a long axis, the outer side of the long axis is slidably connected to a plurality of H-shaped plates, and at least two H-shaped plates are required for the installation of each photovoltaic panel; The front and rear ends of the photovoltaic panel are symmetrically fixedly connected to the limit plate, the front and rear ends of the upper surface of the photovoltaic panel are symmetrically provided with second rectangular sliding grooves, and the second rectangular sliding groove is provided with a second tooth groove on a side away from the center of the photovoltaic panel; The H-shaped plate can be rotated around the long axis to the horizontal and vertical directions, respectively, for disassembling and installing the photovoltaic panel. The upper end of the H-shaped plate is provided with a limit mechanism for limiting the upward and downward and left and right movement of the photovoltaic panel. The lower end of the H-shaped plate is provided with a locking mechanism for temporarily locking the H-shaped plate and the second rectangular rod. When the locking mechanism is locked, it is used to drive the limit mechanism to limit the photovoltaic panel. When the two groups of the mounting mechanisms are moved away from each other, the first rectangular rod is in contact with the limiting plate to limit the forward and backward movement of the photovoltaic panel; The lower end of the plug is fixedly connected to a mounting rod, and the lower end of the mounting rod can be inserted into a first rectangular slide groove opened at the left and right ends of the frame; the upper end of the mounting rod is rotatably connected to a connecting plate, and the end of the connecting plate away from the mounting rod is rotatably connected to a connecting block; a cross-shaped slider is slidably connected in the cross-shaped slide groove opened at the left and right ends of the frame, and a threaded rod is rotatably connected in the cross-shaped slider, and a threaded hole for cooperating with the threaded rod for threaded connection is opened in the middle of the connecting block.

2. A photovoltaic module connection structure according to claim 1, characterized in that: The limiting mechanism includes a right-angled lower pressing plate with a horizontal sliding groove, a connecting rod slidably connected to the horizontal sliding groove, a block fixedly connected to both ends of the connecting rod, a round rod slidably connected to the middle of the block, and a second spring fixedly connected to the lower end of the block, the upper end of the H-shaped plate is provided with a first rectangular through hole for installing the round rod, and the end of the second spring away from the block is fixedly connected to the lower end of the first rectangular through hole; One end of the right-angled lower pressure plate away from the H-shaped plate faces downward and can be inserted into the second rectangular slide groove. The side of the right-angled lower pressure plate at this end facing the H-shaped plate is fixed with a first rack that can be inserted into the second tooth groove. When the locking mechanism is locked, it is used to drive the first rack to be inserted into the second tooth groove.

3. A photovoltaic module connection structure according to claim 2, characterized in that: The locking mechanism includes a pull-down plate slidably connected to the H-shaped plate, a deformable follower plate arranged on the upper end of the pull-down plate, and a pull-down assembly for pulling down and temporarily fixing the position of the pull-down plate. The upper end of the follower plate is fixedly connected to the lower end surface of the horizontal slide groove. When the pull-down plate is parallel to the follower plate, the first rack is inserted into the second tooth groove.

4. A photovoltaic module connection structure according to claim 3, characterized in that: The pull-down assembly includes a limit rod fixedly connected to the lower end of the H-shaped plate, a drawstring fixedly connected to the lower end of the pull-down plate, a first rotating plate rotatably connected to the upper end of the lower half of the H-shaped plate, and a locking assembly for temporarily fixing the first rotating plate and the second rectangular rod. Rotating the first rotating plate drives the drawstring to slide along the limit rod, thereby driving the pull-down plate to move downward.

5. A photovoltaic module connection structure according to claim 4, characterized in that: A second rectangular through hole is provided in the upper half of the first rotating plate, a first tooth groove is provided on the lower end surface of the second rectangular rod, the locking assembly includes a second rotating plate rotatably connected to the lower end of the second rectangular through hole, a second limiting plug plate elastically slidably connected to the second rotating plate, and a second rack fixedly connected to the upper end surface of the second limiting plug plate and pluggable into the first tooth groove, and a third rectangular through hole is provided on the pull-down plate for the second limiting plug plate and the second rack to pass through.

6. A photovoltaic module connection structure according to claim 5, characterized in that: A mounting groove is provided in the middle of the cross-shaped slider, a flower wheel is fixedly connected to the outer side surface of the threaded rod in the mounting groove, a first spring is fixedly connected to the upper end of the mounting groove, a first limit plug plate is fixedly connected to the lower end of the first spring, a fourth rectangular through hole for the first limit plug plate to pass through is provided at the lower end of the cross-shaped slider, and slots for plugging in the first limit plug plate are evenly provided at the lower end of the cross-shaped slide groove.

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