Photovoltaic support falling protector

Abstract

The utility model relates to a photovoltaic support falling protector, and belongs to the field of falling protectors. Comprising a purline, two groups of sliding wheels, two connecting rod mechanisms, two U-shaped hanging buckles, an anti-falling stop block and two supporting rods, each set of sliding wheels is composed of two sliding wheels, the two sliding wheels are slidably arranged at the two ends in the purline in a one-to-one correspondence mode, the two connecting rod mechanisms are connected with the two sliding wheels in a one-to-one correspondence mode, and the two ends of each connecting rod mechanism are connected with the two sliding wheels in each set of sliding wheels in a one-to-one correspondence mode. The two U-shaped hanging buckles are installed in the middles of the two side edges of the purline in a one-to-one correspondence and matched mode, the anti-falling stop block is fixedly installed in the middle of the inner wall of the top end of the purline, and the two ends of the supporting rod are connected with the side walls of the U-shaped hanging buckles and the anti-falling stop block in a one-to-one correspondence mode. According to the utility model, the purline in the field facility is utilized, so that an effective hanging point is obtained for an anti-falling method that constructors use a five-point safety belt on site, and the safety of the constructors is ensured.

Description

Technical Field

[0001] The utility model relates to the field of fall arresters, in particular to a photovoltaic support fall arrester. Background Art

[0002] Centralized photovoltaic power stations are often used for fishery-based or agricultural-based photovoltaic systems. During the photovoltaic installation process, the height of the supports is generally higher than one meter, and some are even several meters above the ground due to factors such as lighting and terrain. Consequently, the exposed piles often exceed one meter or more. During the installation of photovoltaic supports and the laying of photovoltaic panels, using only portal scaffolding cannot effectively ensure the safety of personnel during the installation process. If a fall arrester is used, personnel cannot move during on-site operations due to the limited selection of on-site fixtures, thus using a fixed mode. If a separate fall arrester is established, the initial preparation time is long, and multiple pre-installations are required during on-site operations. Therefore, temporary stepped ladders are often used in conjunction with five-point safety harnesses during actual on-site operations. However, due to factors such as the material selection of the stepped ladders, there is a risk of falling during the photovoltaic panel installation, and the five-point safety harnesses cannot find effective attachment points on-site. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a photovoltaic bracket anti-fall device to solve the above problems.

[0004] The technical solution of the utility model for solving the above technical problems is as follows: a photovoltaic bracket anti-fall device, comprising: a purlin, two groups of sliding wheels, two connecting rod mechanisms, two U-shaped hanging buckles, an anti-fall stop block and two support rods; each group of sliding wheels is composed of two sliding wheels, and the two groups of sliding wheels are slidingly arranged at the two ends of the purlin in a one-to-one correspondence; the two connecting rod mechanisms are connected to the two groups of sliding wheels in a one-to-one correspondence; the two ends of the connecting rod mechanism are connected to the two sliding wheels in each group of sliding wheels in a one-to-one correspondence; the two U The U-shaped hooks are adapted and installed in the middle of the two side edges of the purlin in a one-to-one manner, the anti-fall stop block is fixedly installed in the middle of the top inner wall of the purlin, and the two ends of the support rod are connected to the side walls of the U-shaped hooks and the anti-fall stop block in a one-to-one manner; the working safety belt is connected to the two connecting rod mechanisms and the anti-fall stop block respectively, and under the action of the falling gravity, the two groups of sliding wheels drive the two connecting rod mechanisms to move toward the anti-fall stop block at the same time until the two connecting rod mechanisms are adapted and engaged with the two side walls of the anti-fall stop block in a one-to-one manner.

[0005] The beneficial effects of the utility model are as follows: the purlins used when installing photovoltaic panels are used to design the fall arrester, which makes the best use of on-site facilities, and obtains an effective hanging point for the construction workers to use the five-point safety belt to prevent falling on site, ensuring the safety of the construction workers; the sliding wheel slides in the purlin, which is conducive to the displacement of the connecting rod mechanism toward the anti-fall stop block under the action of falling gravity, and adapts and engages with the side wall of the anti-fall stop block, thereby achieving the stopping of the sliding wheel and the connecting rod mechanism, and realizing the anti-fall function.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the connecting rod mechanism includes multiple connecting rod sleeves and multiple locking screws; the multiple connecting rod sleeves are connected layer by layer, and the outer diameter of the connecting rod sleeves increases layer by layer from the middle to the two ends, and the locking screws are installed on the outer wall of the connecting rod sleeves.

[0008] The beneficial effect of adopting the above further solution is that the layer-by-layer sleeve connection of multiple connecting rod sleeves is conducive to adjusting the length of the entire connecting rod mechanism, thereby making the connecting rod mechanism adaptable to purlins of different specifications.

[0009] Furthermore, multiple locking holes are radially arranged side by side on the side walls of the multiple connecting rod sleeves. When the multiple connecting rod sleeves are adjusted to the required length through telescoping, the locking holes on the side walls of the multiple connecting rod sleeves that are sleeved layer by layer are radially coaxially arranged, and the locking screw passes through the locking holes on the side walls of the two connecting rod sleeves that are sleeved with each other, and is threadedly connected to the inner wall of the locking hole.

[0010] The beneficial effect of adopting the above further solution is that the locking screw passing through the locking hole is conducive to fixing the two connecting rod sleeves that are sleeved together, thereby preventing loosening during operation.

[0011] Furthermore, among the multiple connecting rod sleeves, a locking tooth is provided on the outer wall of the middle connecting rod sleeve, and the locking tooth is circumferentially arranged in the middle of the connecting rod sleeve.

[0012] The beneficial effect of adopting the above further solution is that the engaging teeth are conducive to achieving the adaptive connection between the connecting rod sleeve and the anti-fall stop block, thereby stopping the connecting rod mechanism pulled during falling and achieving anti-fall.

[0013] Furthermore, the anti-fall stop block is a block-shaped structure with four side walls, and the four side walls of the anti-fall stop block are opposite to each other. Limiting grooves are provided on the front and rear side walls of the anti-fall stop block, and a tooth-shaped structure adapted to the engaging teeth is provided on the inner wall of the limiting groove. Under the action of falling gravity, the engaging teeth in the two connecting rod mechanisms correspond one to one to the limiting grooves on the front and rear side walls of the anti-fall stop block and are adapted to engage with them.

[0014] The beneficial effect of adopting the above further solution is that the limiting groove and the engaging teeth are adapted to engage with each other, which is conducive to stopping the connecting rod sleeve at the connection with the anti-fall stop block, preventing the connecting rod sleeve and the sliding wheel from continuing to slide on the purlin, thereby achieving anti-fall.

[0015] Furthermore, the ends of the two support rods are fixedly connected to the left and right side walls of the anti-fall stop block in a one-to-one correspondence.

[0016] The beneficial effect of adopting the above further solution is that the support rod is conducive to further supporting and fixing the anti-fall stop block to the purlin, thereby improving the stability of the anti-fall stop block when it is working.

[0017] Furthermore, the U-shaped hook includes: an inner sleeve, an outer sleeve, two hook blocks, a first limiting device and a second limiting device; the outer sleeve is sleeved on the inner sleeve, and the two hook blocks are vertically installed one by one at the end of the inner sleeve and the outer sleeve away from each other, the first limiting device passes through the two hook blocks, and the second limiting device passes through the inner sleeve and the outer sleeve.

[0018] The beneficial effect of adopting the above-mentioned further scheme is that the outer sleeve is sleeved on the inner sleeve, which is conducive to adjusting the distance between the two hook blocks, thereby making the U-shaped hook compatible with purlins of different thicknesses. The first limiting device is conducive to clamping and fixing the U-shaped hook to the side edge of the purlin, and the second limiting device is conducive to fixing the outer sleeve and the inner sleeve after the distance is adjusted, to avoid loosening during operation.

[0019] Furthermore, a plurality of inner limit holes are arranged side by side on the outer diameter of the inner sleeve, and a plurality of outer limit holes are arranged side by side on the outer diameter of the outer sleeve. The inner limit holes and the outer limit holes are both through holes. When the inner sleeve and the outer sleeve are displaced up and down to adjust the distance between the two hook blocks to the required length, the inner limit holes and the outer limit holes are coaxially arranged.

[0020] The beneficial effect of adopting the above further scheme is that when the inner sleeve and the outer sleeve are displaced up and down to adjust the distance between the two hook blocks to the required length, the inner limit hole and the outer limit hole are coaxially arranged, which is conducive to cooperating with the second limit device to achieve the fixation of the inner sleeve and the outer sleeve.

[0021] Furthermore, the second limiting device includes a second locking screw and a second locking bolt; the second locking screw passes through the inner limiting hole and the outer limiting hole, and the second locking bolt is threadedly connected to the second locking screw and abuts against the outer wall of the outer sleeve.

[0022] The beneficial effect of adopting the above further solution is that the second locking screw cooperates with the second locking bolt to help fix the inner sleeve and the outer sleeve after the length is adjusted, thereby improving the stability of the U-shaped hook during operation.

[0023] Furthermore, the first limiting device includes a first locking screw and a first locking bolt; the first locking screw passes through the two hook blocks and the side edge of the purlin, the first locking bolt is threadedly connected to the first locking screw and abuts against one of the hook blocks, and the side edge of the purlin is adapted to be arranged between the two hook blocks.

[0024] The beneficial effect of adopting the above further solution is that the first locking screw cooperates with the first locking bolt to facilitate the two hook blocks to be adapted and clamped above and below the side edges of the purlin, and then the U-shaped hook is clamped on the side edges of the purlin, providing a fixed point for the installation of the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The main view of the overall structure provided by the embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the sliding wheel provided in an embodiment of the present utility model sliding inside a purlin;

[0027] Figure 3 A front view of the anti-fall stop block provided in an embodiment of the present utility model;

[0028] Figure 4 A front view of a U-shaped hook provided in an embodiment of the present utility model;

[0029] Figure 5 A side view of a U-shaped hook provided in an embodiment of the present invention.

[0030] in, Figure 1 and Figure 2 The double-headed arrows in the figure indicate the installation positions of the components.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 1. Purlin; 2. Sliding wheel; 3. Connecting rod mechanism; 4. U-shaped hook; 5. Anti-fall stop block; 6. Support rod; 31. Connecting rod sleeve; 32. Locking screw; 41. Inner sleeve; 42. Outer sleeve; 43. Hook block; 44. First limiting device; 45. Second limiting device; 51. Limiting groove; 311. Snap-fit tooth; 411. Inner limiting hole; 421. Outer limiting hole; 441. First locking screw; 442. First locking bolt; 451. Second locking screw; 452. Second locking bolt. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1and Figure 2 As shown, a photovoltaic bracket anti-fall device includes: a purlin 1, two groups of sliding wheels 2, two connecting rod mechanisms 3, two U-shaped hanging buckles 4, an anti-fall block 5 and two support rods 6; each group of sliding wheels 2 is composed of two sliding wheels 2, and the two groups of sliding wheels 2 are slidingly arranged at the two ends of the purlin 1 in a one-to-one manner. The two connecting rod mechanisms 3 are connected to the two groups of sliding wheels 2 in a one-to-one manner, and the two ends of the connecting rod mechanism 3 are connected to the two sliding wheels 2 in each group of sliding wheels 2 in a one-to-one manner. The two U-shaped hanging buckles 4 are connected to the two ends of the sliding wheels 2 in a one-to-one manner. It is adapted to be installed in the middle of the two side edges of the purlin 1, and the anti-fall stop block 5 is fixedly installed in the middle of the top inner wall of the purlin 1. The two ends of the support rod 6 are connected to the U-shaped buckle 4 and the side walls of the anti-fall stop block 5 in a one-to-one manner; the work safety belt is respectively connected to the two connecting rod mechanisms 3 and the anti-fall stop block 5. Under the action of the falling gravity, the two groups of sliding wheels 2 drive the two connecting rod mechanisms 3 to move toward the anti-fall stop block 5 at the same time until the two connecting rod mechanisms 3 are adapted to be engaged with the two side walls of the anti-fall stop block 5 in a one-to-one manner.

[0035] It should be noted that: the two sets of sliding wheels 2 are slidably arranged at the front and rear ends of the purlin 1 in a one-to-one correspondence;

[0036] The purlin 1 is of existing technology, and is provided with a retaining edge to prevent the sliding wheel 2 from being pulled toward the side of the anti-fall block 5, or a sliding groove adapted to the sliding wheel 2 is provided on the upper and lower inner walls of the anti-fall block 5, thereby limiting the displacement of the sliding wheel 2.

[0037] The beneficial effects of the utility model are as follows: the purlins used when installing photovoltaic panels are used to design the fall arrester, which makes the best use of on-site facilities, and obtains an effective hanging point for the construction workers to use the five-point safety belt to prevent falling on site, ensuring the safety of the construction workers; the sliding wheel slides in the purlin, which is conducive to the displacement of the connecting rod mechanism toward the anti-fall stop block under the action of falling gravity, and adapts and engages with the side wall of the anti-fall stop block, thereby achieving the stopping of the sliding wheel and the connecting rod mechanism, and realizing the anti-fall function.

[0038] Preferably, Figure 1 As shown, the connecting rod mechanism 3 includes multiple connecting rod sleeves 31 and multiple locking screws 32; the multiple connecting rod sleeves 31 are connected layer by layer, and the outer diameter of the connecting rod sleeves 31 increases layer by layer from the middle to the two ends, and the locking screws 32 are installed on the outer wall of the connecting rod sleeves 31.

[0039] The beneficial effect of adopting the above preferred solution is that the layer-by-layer sleeve connection of multiple connecting rod sleeves is conducive to adjusting the length of the entire connecting rod mechanism, thereby making the connecting rod mechanism adaptable to purlins of different specifications.

[0040] Preferably, multiple locking holes are radially arranged side by side on the side walls of the multiple connecting rod sleeves 31. When the multiple connecting rod sleeves 31 are adjusted to the required length through telescoping, the locking holes on the side walls of the multiple connecting rod sleeves 31 that are sleeved layer by layer are radially coaxially arranged, and the locking screws 32 pass through the locking holes on the side walls of the two connecting rod sleeves 31 that are sleeved with each other, and are threadedly connected to the inner walls of the locking holes.

[0041] The beneficial effect of adopting the above preferred solution is that the locking screw passing through the locking hole is conducive to fixing the two connecting rod sleeves that are sleeved with each other, thereby preventing loosening during operation.

[0042] Preferably, Figure 1 As shown, among the multiple connecting rod sleeves 31 , a latching tooth 311 is provided on the outer wall of the middle connecting rod sleeve 31 , and the latching tooth 311 is circumferentially arranged in the middle of the connecting rod sleeve 31 .

[0043] The beneficial effect of adopting the above preferred solution is that the engaging teeth are conducive to achieving the adaptive connection between the connecting rod sleeve and the anti-fall stop block, thereby stopping the connecting rod mechanism pulled during falling and achieving anti-fall.

[0044] Preferably, Figure 1 and Figure 3 As shown, the anti-fall stop block 5 is a block structure with four side walls, and the four side walls of the anti-fall stop block 5 are opposite to each other. Limiting grooves 51 are provided on the front and rear side walls of the anti-fall stop block 5, and a tooth structure adapted to the engaging teeth 311 is provided on the inner wall of the limiting groove 51. Under the action of falling gravity, the engaging teeth 311 in the two connecting rod mechanisms 3 correspond one to one to the limiting grooves 51 on the front and rear side walls of the anti-fall stop block 5 and are adapted to engage.

[0045] It should be noted that: in the preferred embodiment of the present utility model, the anti-fall stop block 5 is a quadrangular pyramid structure, and its four side walls are inclined compared to the vertical plane.

[0046] The beneficial effect of adopting the above-mentioned preferred solution is that the limiting groove and the engaging teeth are adapted to engage with each other, which is conducive to stopping the connecting rod sleeve at the connection with the anti-fall stop block, preventing the connecting rod sleeve and the sliding wheel from continuing to slide on the purlin, thereby achieving anti-fall.

[0047] Preferably, Figure 1 As shown, the ends of the two support rods 6 are fixedly connected to the left and right side walls of the anti-fall stop block 5 in a one-to-one correspondence.

[0048] The beneficial effect of adopting the above preferred solution is that the support rod is conducive to further supporting and fixing the anti-fall stop block to the purlin, thereby improving the stability of the anti-fall stop block when it is working.

[0049] Preferably, Figure 4 and Figure 5 As shown, the U-shaped hook 4 includes: an inner sleeve 41, an outer sleeve 42, two hook blocks 43, a first limiting device 44 and a second limiting device 45; the outer sleeve 42 is sleeved on the inner sleeve 41, and the two hook blocks 43 are vertically installed one by one at the end of the inner sleeve 41 and the outer sleeve 42 away from each other, the first limiting device 44 passes through the two hook blocks 43, and the second limiting device 45 passes through the inner sleeve 41 and the outer sleeve 42.

[0050] It should be noted that, in the technical solution of the present invention, one end of the support rod 6 away from the anti-fall stop block 5 is connected to the side wall of the outer sleeve 42 .

[0051] The beneficial effects of adopting the above-mentioned preferred scheme are: the outer sleeve is sleeved on the inner sleeve, which is conducive to adjusting the distance between the two hook blocks, thereby making the U-shaped hook compatible with purlins of different thicknesses. The first limiting device is conducive to clamping and fixing the U-shaped hook to the side edge of the purlin, and the second limiting device is conducive to fixing the outer sleeve and the inner sleeve after the distance is adjusted, to avoid loosening during operation.

[0052] Preferably, Figure 4 As shown, a plurality of inner limit holes 411 are arranged side by side on the outer diameter of the inner sleeve 41, and a plurality of outer limit holes 421 are arranged side by side on the outer diameter of the outer sleeve 42. The inner limit holes 411 and the outer limit holes 421 are both through holes. When the inner sleeve 41 and the outer sleeve 42 are displaced up and down to adjust the distance between the two hook blocks 43 to the required length, the inner limit holes 411 and the outer limit holes 421 are coaxially arranged.

[0053] The beneficial effect of adopting the above-mentioned preferred scheme is that when the inner sleeve and the outer sleeve are displaced up and down to adjust the distance between the two hook blocks to the required length, the inner limit hole and the outer limit hole are coaxially arranged, which is conducive to cooperating with the second limit device to achieve the fixation of the inner sleeve and the outer sleeve.

[0054] Preferably, Figure 5 As shown, the second limiting device 45 includes a second locking screw 451 and a second locking bolt 452; the second locking screw 451 passes through the inner limiting hole 411 and the outer limiting hole 421, and the second locking bolt 452 is threadedly connected to the second locking screw 451 and abuts against the outer wall of the outer sleeve 42.

[0055] The beneficial effect of adopting the above preferred solution is that the second locking screw cooperates with the second locking bolt to help fix the inner sleeve and the outer sleeve after the length is adjusted, thereby improving the stability of the U-shaped hook during operation.

[0056] Preferably, Figure 1 and Figure 5 As shown, the first limiting device 44 includes a first locking screw 441 and a first locking bolt 442; the first locking screw 441 passes through the two hook blocks 43 and the side edge of the purlin 1, and the first locking bolt 442 is threadedly connected to the first locking screw 441 and abuts against one of the hook blocks 43, and the side edge of the purlin 1 is adapted to be arranged between the two hook blocks 43.

[0057] The beneficial effect of adopting the above preferred solution is that the first locking screw cooperates with the first locking bolt to facilitate the two hook blocks to be adapted and clamped above and below the side edges of the purlin, and then the U-shaped hook is clamped on the side edges of the purlin, providing a fixed point for the installation of the support rod.

[0058] The working process of the utility model is introduced below:

[0059] like Figures 1 to 5 As shown, when the construction workers fall, a downward pulling force will be applied to the two connecting rod mechanisms 3 and the anti-fall stop block 5 through the safety belt. Under the action of this pulling force, the two sets of sliding wheels 2 slide on the purlin 1 toward the anti-fall stop block 5. When the engaging teeth 311 are adapted to the tooth structure in the limiting groove 51, the connecting rod mechanism 3 is blocked by the anti-fall stop block 5 and stops moving. At this time, the construction workers will not continue to fall, thereby realizing the anti-fall function and improving the safety of the construction workers during on-site construction.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0062] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic support anti-fall device, characterized in that: include: Purlin (1), two groups of sliding wheels (2), two connecting rod mechanisms (3), two U-shaped hanging buckles (4), anti-falling stopper (5) and two support rods (6); each group of sliding wheels (2) is composed of two sliding wheels (2), the two groups of sliding wheels (2) are slidingly arranged at the two ends of the purlin (1) in a one-to-one correspondence, the two connecting rod mechanisms (3) are connected to the two groups of sliding wheels (2) in a one-to-one correspondence, the two ends of the connecting rod mechanism (3) are connected to the two sliding wheels (2) in each group of sliding wheels (2) in a one-to-one correspondence, the two U-shaped hanging buckles (4) are adapted to be installed in the middle of the two side edges of the purlin (1) in a one-to-one correspondence, the anti-falling stopper (5) is fixedly installed in the middle of the top inner wall of the purlin (1), and the two ends of the support rod (6) are connected to the side walls of the U-shaped hanging buckle (4) and the anti-falling stopper (5) in a one-to-one correspondence; The operating safety belt is respectively connected to the two connecting rod mechanisms (3) and the anti-falling stop block (5). Under the action of falling gravity, the two sets of sliding wheels (2) drive the two connecting rod mechanisms (3) to move toward the anti-falling stop block (5) at the same time until the two connecting rod mechanisms (3) are adapted and engaged with the two side walls of the anti-falling stop block (5) in a one-to-one correspondence.

2. A photovoltaic support anti-fall device according to claim 1, characterized in that: The connecting rod mechanism (3) comprises a plurality of connecting rod sleeves (31) and a plurality of locking screws (32); the plurality of connecting rod sleeves (31) are sleeved layer by layer, and the outer diameter of the connecting rod sleeves (31) increases layer by layer from the middle to both ends, and the locking screws (32) are installed on the outer wall of the connecting rod sleeves (31).

3. A photovoltaic support anti-fall device according to claim 2, characterized in that: A plurality of locking holes are radially arranged side by side on the side walls of the plurality of connecting rod sleeves (31). When the plurality of connecting rod sleeves (31) are adjusted to a desired length by telescoping, the locking holes on the side walls of the plurality of connecting rod sleeves (31) that are sleeved layer by layer are radially coaxially arranged. The locking screw (32) passes through the locking holes on the side walls of the two sleeved connecting rod sleeves (31) and is threadedly connected to the inner wall of the locking hole.

4. The photovoltaic support anti-fall device according to claim 2, characterized in that: Among the multiple connecting rod sleeves (31), a locking tooth (311) is provided on the outer wall of the middle connecting rod sleeve (31), and the locking tooth (311) is circumferentially arranged in the middle of the connecting rod sleeve (31).

5. A photovoltaic support anti-fall device according to claim 4, characterized in that: The anti-fall stop block (5) is a block-shaped structure with four side walls. The four side walls of the anti-fall stop block (5) are opposite to each other. Limiting grooves (51) are provided on the front and rear side walls of the anti-fall stop block (5). A tooth-shaped structure adapted to the engaging teeth (311) is provided on the inner wall of the limiting groove (51). Under the action of falling gravity, the engaging teeth (311) in the two connecting rod mechanisms (3) are adapted to engage with the limiting grooves (51) on the front and rear side walls of the anti-fall stop block (5) in a one-to-one correspondence.

6. A photovoltaic support anti-fall device according to claim 5, characterized in that: The ends of the two support rods (6) are fixedly connected to the left and right side walls of the anti-falling stop block (5) in a one-to-one correspondence.

7. The photovoltaic support anti-fall device according to claim 1, characterized in that: The U-shaped hook (4) comprises: an inner sleeve (41), an outer sleeve (42), two hook blocks (43), a first limiting device (44) and a second limiting device (45); the outer sleeve (42) is sleeved on the inner sleeve (41), the two hook blocks (43) are vertically mounted one by one at the ends of the inner sleeve (41) and the outer sleeve (42) that are away from each other, the first limiting device (44) passes through the two hook blocks (43), and the second limiting device (45) passes through the inner sleeve (41) and the outer sleeve (42).

8. The photovoltaic support anti-fall device according to claim 7, characterized in that: A plurality of inner limiting holes (411) are arranged side by side on the outer diameter of the inner sleeve (41), and a plurality of outer limiting holes (421) are arranged side by side on the outer diameter of the outer sleeve (42). The inner limiting holes (411) and the outer limiting holes (421) are both through holes. When the inner sleeve (41) and the outer sleeve (42) are displaced up and down to adjust the distance between the two hook blocks (43) to a desired length, the inner limiting holes (411) and the outer limiting holes (421) are coaxially arranged.

9. A photovoltaic support anti-fall device according to claim 8, characterized in that: The second limiting device (45) includes a second locking screw (451) and a second locking bolt (452); the second locking screw (451) passes through the inner limiting hole (411) and the outer limiting hole (421), and the second locking bolt (452) is threadedly connected to the second locking screw (451) and abuts against the outer wall of the outer sleeve (42).

10. The photovoltaic support anti-fall device according to claim 7, characterized in that: The first limiting device (44) includes a first locking screw (441) and a first locking bolt (442); the first locking screw (441) passes through the two hook blocks (43) and the side edge of the purlin (1); the first locking bolt (442) is threadedly connected to the first locking screw (441) and abuts against one of the hook blocks (43); and the side edge of the purlin (1) is adapted to be arranged between the two hook blocks (43).

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