Packing frame

Abstract

The utility model relates to a packaging frame. The packaging frame comprises a bottom frame, a supporting frame and a moving device. The supporting frame is arranged on the bottom frame and used for supporting the photovoltaic module. The moving device is arranged on the bottom frame and comprises moving wheels, and the moving wheels can stretch out and draw back in the thickness direction of the bottom frame so that the packaging frame can have a first state and a second state. In the first state, the moving wheels are located on the side, away from the supporting frame, of the bottom frame, the moving wheels make contact with the supporting face, an operator pushes the packaging frame, the moving wheels can roll on the supporting face so that the packaging frame can be moved to the designated position, and the moving convenience of the packaging frame is improved. The moving wheels can retract towards the side close to the supporting frame so that the packaging frame can be switched from the first state to the second state, in the second state, the bottom frame is attached to the supporting face, then the tray is adopted to press the bottom frame, it is guaranteed that the packaging frame cannot topple and move, and the safety of packaging operation is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic module production, in particular to a packing frame. BACKGROUND

[0002] In the process of photovoltaic module production, a packing frame is used to pack photovoltaic modules. Since the packing frame is heavy, it is difficult to transport. In order to solve the problem of difficult transportation of the packing frame, some packing frames are provided with moving wheels at the bottom. However, when the packing frame with moving wheels is used for packing, the packing frame is prone to tilting and moving, which causes safety hazards in the packing operation. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a packing frame which can not only improve the convenience of the packing frame transfer, but also ensure that the packing frame will not tilt and ensure the safety of the packing operation.

[0004] A packing frame comprises:

[0005] a base frame;

[0006] a support frame arranged on the base frame, the support frame being used to support photovoltaic modules; and

[0007] a moving device arranged on the base frame, the moving device comprising moving wheels, the moving wheels being capable of extending and retracting along the thickness direction of the base frame, so that the packing frame has a first state and a second state. In the first state, the moving wheels are located on the side of the base frame away from the support frame, and the moving wheels are in contact with a support surface. The moving wheels can be retracted towards the side close to the support frame, so that the packing frame is switched from the first state to the second state. In the second state, the base frame is in close contact with the support surface.

[0008] In one of the embodiments, the moving device further comprises a fixing frame and a moving frame. The fixing frame is arranged on the base frame, and the fixing frame has a receiving cavity. The bottom of the fixing frame is provided with an opening in communication with the receiving cavity. The moving frame is arranged in the receiving cavity, and the bottom of the moving frame is provided with the moving wheels. The moving frame is capable of moving in the receiving cavity towards the opening or away from the opening, so that the moving wheels extend and retract. In the first state, the moving wheels are located outside the receiving cavity through the opening. In the second state, the moving wheels are located in the receiving cavity.

[0009] In one of the embodiments, the moving device further comprises an elastic member. One end of the elastic member is connected to the fixing frame, and the other end of the elastic member is connected to the moving frame. The elastic member is used to drive the moving frame to move towards the opening, so that the moving wheels extend out of the receiving cavity.

[0010] In one embodiment, the top of the fixed frame is provided with a first guide sleeve communicating with the receiving cavity, the first guide sleeve being located outside the receiving cavity and extending in a direction away from the opening; the movable frame is provided with a first guide member, the first guide member being movably located inside the first guide sleeve.

[0011] In one embodiment, the first guide sleeve is provided with a first limiting part, and the first guide member is provided with a second limiting part. In the second state, the first limiting part and the second limiting part are engaged to limit the movement of the movable wheel relative to the fixed frame within the receiving cavity.

[0012] In one embodiment, the first limiting part is provided with a first limiting hole, the second limiting part is provided with a second limiting hole, and the moving device further includes a first limiting member; in the second state, the first limiting hole and the second limiting hole are connected, and the first limiting member is disposed in the first limiting hole and the second limiting hole.

[0013] In one embodiment, the top of the fixed frame is further provided with a second guide sleeve communicating with the receiving cavity. The second guide sleeve is located outside the receiving cavity and extends in a direction away from the opening. The movable frame is further provided with a second guide member, which is movably located inside the second guide sleeve. The movable device further includes a second limiting member, which is located on the second guide member. In the first state, the second limiting member abuts against the second guide sleeve.

[0014] In one embodiment, the base frame has a through hole and a first fixing hole, the through hole being disposed opposite to the opening and communicating with the receiving cavity; the fixing frame has a flange, the flange being folded outward from the opening wall of the opening toward the receiving cavity, the flange being disposed on the base frame, the flange having a second fixing hole, the first fixing hole communicating with the second fixing hole; the moving device further includes a fixing member, the fixing member being disposed in the first fixing hole and the second fixing hole.

[0015] In one embodiment, the support frame includes an A-frame and a connecting rod. There are at least two A-frames, and all the A-frames are spaced apart along the length of the base frame. All the A-frames are connected by the connecting rod. The base frame has two placement areas, which are located on both sides of the arrangement direction of the A-frames.

[0016] In one embodiment, the support frame has a contact surface for contacting the photovoltaic module, and the contact surface is provided with a buffer portion.

[0017] In the aforementioned packing rack, when in its first state, the moving wheels are located on the side of the base frame away from the support frame, and the wheels are in contact with the support surface. This allows the operator to push the packing rack, causing the wheels to roll on the support surface and move the rack to the designated position, improving the ease of movement. When the packing rack is used for packing, external force is applied to the moving wheels, causing them to retract along the thickness direction of the base frame towards the side where the support frame is located. This switches the packing rack from the first state to the second state. In the second state, the base frame is in contact with the support surface, and a pallet is used to hold the base frame in place, ensuring that the packing rack will not tip over or move, thus guaranteeing the safety of the packing operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the packing rack according to an embodiment of this application during packing.

[0019] Figure 2 for Figure 1 The packing rack shown is a right view during packing.

[0020] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0021] Figure 4 This is a schematic diagram of the assembled structure of the base frame and support frame according to an embodiment of this application.

[0022] Figure 5 This is a top view of a mobile device according to an embodiment of this application.

[0023] Figure 6 for Figure 5 The moving device shown is a cross-sectional view along AA when the moving wheel is extended.

[0024] Figure 7 for Figure 5 The moving device shown is a cross-sectional view along AA when the moving wheel retracts.

[0025] Explanation of icon numbers:

[0026] 10. Base frame; 11. Through hole; 12. First fixing hole; 13. Placement area; 20. Support frame; 21. A-frame; 211. Inclined rod; 2111. Contact surface; 212. Reinforcing rod; 22. First connecting rod; 23. Second connecting rod; 30. Moving device; 31. Moving wheel; 32. Fixing frame; 321. Receiving cavity; 322. Opening; 323. First guide sleeve; 3231. First limiting hole; 3232. Limiting boss; 324. Flanged edge; 3241. Second fixing hole; 325. Second guide sleeve; 33. Moving frame; 331. First guide member; 3311. Second limiting hole; 332. Second guide member; 34. First limiting member; 35. Second limiting member; 36. Elastic member; 37. Fixing member; 40. Tray. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] See Figure 1 The packing rack provided in one embodiment of this application includes a base frame 10, a support frame 20, and a moving device 30.

[0029] See Figure 1 A support frame 20 is mounted on the base frame 10 and is used to support the photovoltaic modules. A moving device 30 is mounted on the base frame 10 and includes casters 31 that are extendable and retractable along the thickness direction of the base frame 10, allowing the packing frame to have a first state and a second state. (See reference...) Figure 6 In the first state, the movable wheel 31 is located on the side of the base frame 10 away from the support frame 20, and the movable wheel 31 is in contact with the support surface. (See reference...) Figure 2 , Figure 3 and Figure 7 The movable wheel 31 can retract toward the side where the support frame 20 is located, so that the packing rack switches from the first state to the second state. In the second state, the base frame 10 is in contact with the support surface.

[0030] It should be noted that the support surface can be selected according to the actual usage scenario. Optionally, the support surface is the ground. Of course, in other embodiments, the support surface can also be other working surfaces, and is not limited thereto.

[0031] Optionally, the caster wheel 31 can be a swivel caster. This improves the flexibility and stability of the packing rack's movement.

[0032] In the first state, the aforementioned packing rack has the caster wheel 31 located on the side of the base frame 10 away from the support frame 20, and the caster wheel 31 is in contact with the support surface. This allows the operator to push the packing rack, and the caster wheel 31 can roll on the support surface to move the packing rack to the designated position, improving the ease of movement. When the packing rack is used for packing, external force is applied to the caster wheel 31, causing it to retract along the thickness direction of the base frame 10 towards the side where the support frame 20 is located, thus switching the packing rack from the first state to the second state. In the second state, the base frame 10 is in contact with the support surface, and then the tray 40 is used to hold the base frame 10 in place, ensuring that the packing rack will not tip over or move, thus ensuring the safety of the packing operation.

[0033] In one embodiment, see Figure 1 and Figure 4 The base frame 10 is a square plate. Four moving devices 30 are provided, each corresponding to one of the four corners of the square plate. This improves the stability of the packing rack's movement and ensures more even load distribution.

[0034] Of course, in other embodiments, there may be two, three or more mobile devices 30, and it is not limited thereto.

[0035] In one embodiment, see Figure 1 , Figure 5 and Figure 6 The mobile device 30 also includes a fixed frame 32 and a movable frame 33. The fixed frame 32 is mounted on the base frame 10 and has a receiving cavity 321. The bottom of the fixed frame 32 has an opening 322 that communicates with the receiving cavity 321. The bottom of the movable frame 33 has a movable wheel 31. The movable frame 33 is movably mounted in the receiving cavity 321 and can move within the receiving cavity 321 in a direction closer to or away from the opening 322, thereby enabling the movable wheel 31 to extend and retract.

[0036] See Figure 6 In the first state, the movable wheel 31 is located outside the receiving cavity 321 through the opening 322. In use, pushing the packing rack causes the movable wheel 31 to roll on the support surface, thereby moving the packing rack to the designated position and improving the ease of moving the packing rack.

[0037] See Figure 2 and Figure 7 In the second state, the movable wheel 31 is located inside the receiving cavity 321. When the packing frame is used for packing, an external force is applied to the movable frame 33, which moves away from the opening 322 inside the receiving cavity 321, causing the movable wheel 31 to retract into the receiving cavity 321. The base frame 10 is in contact with the support surface. After the base frame 10 is pressed down by the tray 40, the packing frame will not tip over or move.

[0038] Of course, in other embodiments, the packing rack also includes a driving component connected to the movable wheel 31, which is used to drive the movable wheel 31 to extend or retract. Optionally, the driving component is a cylinder or an electric cylinder, etc.

[0039] In one embodiment, see Figure 6 The top of the fixing frame 32 is provided with a first guide sleeve 323, which is located outside the receiving cavity 321 and communicates with the receiving cavity 321.

[0040] Optionally, see Figure 6 A first through hole is provided at the middle position of the top of the fixing frame 32, and the wall of the first through hole extends in a direction away from the receiving cavity 321 to form a first guide sleeve 323.

[0041] Further, see Figure 6 The movable frame 33 is provided with a first guide member 331, which is movably disposed within the first guide sleeve 323. Optionally, the first guide member 331 is disposed in the middle of the movable frame 33. Thus, with the cooperation of the first guide member 331 and the first guide sleeve 323, the movement of the movable frame 33 is directional, improving the stability of the movement of the movable frame 33, so that the movable wheel 31 can extend and retract quickly and smoothly.

[0042] In one embodiment, the first guide sleeve 323 is provided with a first limiting part, and the first guide member 331 is provided with a second limiting part.

[0043] In the second state, the first limiting part and the second limiting part engage to keep the movable wheel 31 stationary relative to the fixed frame 32 within the receiving cavity 321. When using a packing rack for packing, after the movable wheel 31 is located in the receiving cavity 321, the first limiting part and the second limiting part engage to keep the movable frame 33 stationary relative to the fixed frame 32, preventing the movable wheel 31 from extending out of the receiving cavity 321 and causing the packing rack to tip over or move.

[0044] In one embodiment, see Figure 6 and Figure 7 The first limiting part is provided with a first limiting hole 3231, and the second limiting part is provided with a second limiting hole 3311. The moving device 30 also includes a first limiting member 34.

[0045] Optionally, the first limiting hole 3231 and the second limiting hole 3311 are limiting pin holes, and the first limiting member 34 is a limiting pin.

[0046] See Figure 7 In the second state, the first limiting hole 3231 and the second limiting hole 3311 are arranged opposite to each other, and the first limiting member 34 is disposed in the first limiting hole 3231 and the second limiting hole 3311.

[0047] When using a packing rack for packing, an external force is applied to the movable rack 33, causing it to move away from the opening 322 within the receiving cavity 321 until the first limiting hole 3231 and the second limiting hole 3311 are aligned. Then, the first limiting member 34 is inserted into the first limiting hole 3231 and the second limiting hole 3311, keeping the movable rack 33 stationary relative to the fixed rack 32. This facilitates operation and improves the reliability of the limiting mechanism.

[0048] In one embodiment, see Figure 6 and Figure 7 The moving device 30 also includes an elastic element 36. One end of the elastic element 36 is connected to the fixed frame 32, and the other end of the elastic element 36 is connected to the moving frame 33. The elastic element 36 is used to drive the moving frame 33 to move toward the opening 322 so that the moving wheel 31 extends out of the receiving cavity 321.

[0049] Optionally, the elastic element 36 is a spring. Of course, in other embodiments, the elastic element 36 may also be other elastic components, and is not limited thereto.

[0050] When the packing rack is used for packing, an external force is applied to the movable rack 33, causing it to move away from the opening 322 within the receiving cavity 321, and the elastic element 36 is gradually compressed. When the packing rack is moved, the first limiting member 34 is removed, and the elastic element 36 gradually extends. Under the elastic restoring force of the elastic element 36, the movable rack 33 moves towards the opening 322, causing the movable wheel 31 to extend through the opening 322 out of the receiving cavity 321 and contact the support surface. Then, the operator pushes the packing rack, and the movable wheel 31 rolls on the support surface to move the packing rack to the designated position, thus transferring the packing rack.

[0051] In one embodiment, see Figure 6 and Figure 7 The inner wall of the first guide sleeve 323 is provided with a limiting boss 3232. The elastic element 36 is sleeved on the first guide element 331, and the end of the elastic element 36 facing away from the moving frame 33 abuts against the limiting boss 3232. In this way, the elastic element 36 is sleeved on the first guide element 331, and the first guide element 331 plays a guiding role in the extension and retraction movement of the elastic element 36, ensuring the smoothness of the extension and retraction movement of the elastic element 36.

[0052] In one embodiment, see Figure 6 and Figure 7 The top of the fixing frame 32 is also provided with a second guide sleeve 325, which is located outside the receiving cavity 321 and communicates with the receiving cavity 321.

[0053] Optionally, see Figure 6 and Figure 7The top of the fixing bracket 32 ​​is also provided with a second through hole, and the wall of the second through hole extends outward toward the receiving cavity 321 to form a second guide sleeve 325.

[0054] Further, see Figure 6 and Figure 7 The movable frame 33 is also provided with a second guide member 332, which is movably disposed within the second guide sleeve 325. Thus, with the cooperation of the second guide member 332 and the second guide sleeve 325, the movement of the movable frame 33 is guided, improving the stability of the movement of the movable frame 33.

[0055] In this embodiment, see Figure 6 Both the top of the fixed frame 32 and the movable frame 33 are square plates. Four second guide sleeves 325 are provided, each located at one of the four corners of the top of the fixed frame 32. Four second guide members 332 are provided, each located at one of the four corners of the movable frame 33.

[0056] Further, see Figure 6 and Figure 7 The moving device 30 also includes a second limiting member 35, which is disposed on the second guide member 332. In the first state, the second limiting member 35 abuts against the second guide sleeve 325, thereby preventing the moving frame 33 from moving too much in the direction close to the opening 322 and causing the moving frame 33 to fall off.

[0057] Optionally, see Figure 6 and Figure 7 The second limiting member 35 is a bolt, which is threaded to one end of the second guide member 332 away from the movable frame 33.

[0058] In one embodiment, see Figure 4 The base frame 10 is provided with a through hole 11 and a first fixing hole 12. The fixing bracket 32 ​​is provided on the base frame 10, and the through hole 11 is arranged opposite to the opening 322. The through hole 11 communicates with the receiving cavity 321 through the opening 322.

[0059] Further, see Figure 6 and Figure 7The fixing frame 32 is provided with a flange 324, which folds outward from the opening wall of the opening 322 toward the receiving cavity 321. The flange 324 fits against the upper or lower surface of the base frame 10, and the flange 324 is provided with a second fixing hole 3241, which communicates with the first fixing hole 12. The moving device 30 also includes a fixing member 37, which is disposed in the first fixing hole 12 and the second fixing hole 3241. In this way, on the one hand, it is convenient to fix the fixing frame 32 to the base frame 10, improving the convenience of installation; on the other hand, the moving device 30 can be removed from the base frame 10, facilitating the maintenance and replacement of the moving device 30.

[0060] Of course, in other embodiments, the flange 324 may also be welded to the base frame 10, etc.

[0061] In one embodiment, see Figure 4 The support frame 20 includes A-frames 21. There are at least two A-frames 21, and all A-frames 21 are spaced apart along the length of the base frame 10.

[0062] Specifically, see Figure 4 The A-frame 21 includes a reinforcing rod 212 and two tilting rods 211. In each A-frame 21, the two tilting rods 211 are arranged at an included angle, with one end of each rod connected together. The other ends of each rod are located on the base frame 10 and spaced apart along the width of the base frame 10. The reinforcing rod 212 is located between the two tilting rods 211, with both ends of the reinforcing rod 212 corresponding to the midpoint of the length direction of each of the two tilting rods 211. During packaging, the photovoltaic modules rest against the tilting rods 211.

[0063] It should be noted that the number of A-frames 21 can be set according to actual needs. In this embodiment, there are three A-frames 21, which are spaced apart along the length of the base frame 10. Of course, in other embodiments, there may be one, two, or more than four A-frames 21.

[0064] In one embodiment, the support frame 20 further includes connecting rods, through which all the A-frames 21 are connected. Thus, by connecting all the A-frames 21 into a single unit via the connecting rods, the strength of the support frame 20 is improved.

[0065] In this implementation, please refer to Figure 4 The connecting rods include a first connecting rod 22 and a second connecting rod 23. The first connecting rod 22 is located at the top of all A-frames 21 along the length of the base frame 10, and the tops of all A-frames 21 are connected by the first connecting rod 22. The second connecting rod 23 is located at the middle of all A-frames 21 along the length of the base frame 10, and the reinforcing rods 212 of all A-frames 21 are connected by the second connecting rod 23.

[0066] In one embodiment, see Figure 1 and Figure 4 The base frame 10 has two placement areas 13, located on opposite sides of the support frame 20 along its length. It can be understood that the length of the support frame 20 corresponds to the arrangement direction of the A-frame 21. During packing, trays 40 are placed in both placement areas 13 to prevent the packing frame from tipping over.

[0067] In one embodiment, see Figure 4 The support frame 20 has a contact surface 2111 for contacting the photovoltaic module. The contact surface 2111 is the side of the inclined rod 211 facing away from the reinforcing rod 212. The contact surface 2111 has a buffer portion, optionally a PVC pad. During packaging, the photovoltaic module comes into direct contact with the buffer portion, thus protecting the photovoltaic module and preventing scratches to its frame.

[0068] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0069] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0071] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A packing rack, characterized in that, include: Base frame (10); A support frame (20) is provided on the base frame (10) and is used to support photovoltaic modules; as well as A moving device (30) is provided on the base frame (10). The moving device (30) includes a moving wheel (31). The moving wheel (31) can extend and retract along the thickness direction of the base frame (10) so that the packing rack has a first state and a second state. In the first state, the moving wheel (31) is located on the side of the base frame (10) away from the support frame (20). The moving wheel (31) is in contact with the support surface. The moving wheel (31) can retract toward the side where the support frame (20) is located so that the packing rack switches from the first state to the second state. In the second state, the base frame (10) is in contact with the support surface.

2. The packing rack according to claim 1, characterized in that, The moving device (30) further includes a fixed frame (32) and a moving frame (33). The fixed frame (32) is located on the base frame (10). The fixed frame (32) has a receiving cavity (321). The bottom of the fixed frame (32) is provided with an opening (322) communicating with the receiving cavity (321). The moving frame (33) is located in the receiving cavity (321). The bottom of the moving frame (33) is provided with the moving wheel (31). The moving frame (33) can move in the receiving cavity (321) towards or away from the opening (322) to extend or retract the moving wheel (31). In the first state, the moving wheel (31) is located outside the receiving cavity (321) through the opening (322); in the second state, the moving wheel (31) is located inside the receiving cavity (321).

3. The packing rack according to claim 2, characterized in that, The moving device (30) also includes an elastic element (36), one end of which is connected to the fixed frame (32) and the other end of which is connected to the moving frame (33). The elastic element (36) is used to drive the moving frame (33) to move toward the opening (322) so that the moving wheel (31) extends out of the receiving cavity (321).

4. The packing rack according to claim 2, characterized in that, The top of the fixed frame (32) is provided with a first guide sleeve (323) communicating with the receiving cavity (321). The first guide sleeve (323) is located outside the receiving cavity (321) and extends in a direction away from the opening (322). The movable frame (33) is provided with a first guide member (331), which is movably located inside the first guide sleeve (323).

5. The packing rack according to claim 4, characterized in that, The first guide sleeve (323) is provided with a first limiting part, and the first guide member (331) is provided with a second limiting part. In the second state, the first limiting part and the second limiting part are in a limiting cooperation so that the moving wheel (31) is fixed relative to the fixed frame (32) in the receiving cavity (321).

6. The packing rack according to claim 5, characterized in that, The first limiting part is provided with a first limiting hole (3231), the second limiting part is provided with a second limiting hole (3311), and the moving device (30) further includes a first limiting member (34). In the second state, the first limiting hole (3231) and the second limiting hole (3311) are arranged opposite to each other, and the first limiting member (34) is disposed in the first limiting hole (3231) and the second limiting hole (3311).

7. The packing rack according to claim 2, characterized in that, The top of the fixed frame (32) is also provided with a second guide sleeve (325) communicating with the receiving cavity (321). The second guide sleeve (325) is located outside the receiving cavity (321) and extends in a direction away from the opening (322). The movable frame (33) is also provided with a second guide member (332), which is movably located inside the second guide sleeve (325). The moving device (30) further includes a second limiting member (35), which is disposed on the second guide member (332). In the first state, the second limiting member (35) abuts against the second guide sleeve (325).

8. The packing rack according to claim 2, characterized in that, The base frame (10) is provided with a through hole (11) and a first fixing hole (12). The through hole (11) is arranged opposite to the opening (322) and communicates with the receiving cavity (321). The fixing frame (32) is provided with a flange (324), which folds outward from the opening wall of the opening (322) toward the receiving cavity (321). The flange (324) is provided on the base frame (10). The flange (324) is provided with a second fixing hole (3241). The first fixing hole (12) communicates with the second fixing hole (3241). The moving device (30) also includes a fixing member (37), which is provided in the first fixing hole (12) and the second fixing hole (3241).

9. The packing rack according to any one of claims 1 to 8, characterized in that, The support frame (20) includes an A-frame (21) and a connecting rod. There are at least two A-frames (21). All A-frames (21) are spaced apart along the length of the base frame (10). All A-frames (21) are connected by the connecting rod. The base frame (10) has two placement areas (13). The two placement areas (13) are located on both sides of the arrangement direction of the A-frames (21).

10. The packing rack according to any one of claims 1 to 8, characterized in that, The support frame (20) has a contact surface (2111) for contacting the photovoltaic module, and the contact surface (2111) is provided with a buffer portion.

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