Photovoltaic module pressing block fixing device and photovoltaic system

Abstract

The utility model discloses a photovoltaic module pressing block fixing device and a photovoltaic system, and the pressing block fixing device comprises a pressing block which presses a photovoltaic module and a pressing block locking mechanism which locks the pressing block. The pressing block locking mechanism comprises a locking rod movably penetrating through the pressing block, a limiting block connected with the lower end of the locking rod and two cam handles correspondingly arranged on the two opposite sides of the upper portion of the locking rod, the limiting block is matched with the limiting part in a limiting mode, locking pins are arranged on the heads of the cam handles, and a connecting rod is connected between the two locking pins. Lock teeth are arranged on two opposite sides of the upper part of the lock rod; and when the cam handle is pressed down, the lock pin is matched with the lock teeth, and the cam part of the cam handle locks the pressing block. According to the utility model, the photovoltaic assembly and the pressing block can be rapidly fixed on the photovoltaic support, and the two cam handles are used for locking at the same time, so that the fastening effect is improved, and loosening is avoided.

Description

Technical field

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a photovoltaic component installation technology. [Background Technology]

[0002] During the photovoltaic panel installation process, shortening the construction period is key to improving efficiency and reducing costs. Traditional photovoltaic power plants mostly use bolted clamps. This installation method requires a considerable amount of time to tighten the bolts, resulting in unnecessary manpower and time investment. This leads to long construction periods for photovoltaic plants, low panel installation efficiency, and increased costs.

[0003] In order to change the traditional method of using bolts to fix the pressure block, the prior art discloses many bolt-free fixing structures. For example, the Chinese utility model patent with the announcement number CN221177577U discloses a pressure block assembly and a photovoltaic system for installing photovoltaic modules. The pressure block assembly is installed on a beam. The beam is provided with a connecting portion. The pressure block assembly includes a connecting column and a fastener. The connecting portion and the fastener are provided with a through hole connected to the connecting column. The two ends of the connecting column are respectively provided with a first limiting portion and a second limiting portion. The first limiting portion and the second limiting portion clamp and fix the beam, the module frame and the fastener. When the photovoltaic module is installed, the connecting column can be passed through the through holes provided on the connecting portion and the fastener. Although the above structure does not use traditional bolt connections, it mainly generates a tightening force through the elastic deformation of the fastener. Compared with bolts, the force is smaller and it is easy to loosen. [Utility Model Content]

[0004] In view of the deficiencies in the existing technology, the technical problem to be solved by the present invention is to provide a photovoltaic module block fixing device and a photovoltaic system, which can enhance the fixing force, improve the fastening effect and avoid loosening compared with the existing bolt-free installation method.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] First, a photovoltaic module pressure block fixing device is provided to fix the photovoltaic module on a beam, the beam is provided with a limiting portion, the pressure block fixing device includes a pressure block for pressing the photovoltaic module and a pressure block locking mechanism for locking the pressure block, the pressure block locking mechanism includes a locking rod that moves through the pressure block, a limiting block connected to the lower end of the locking rod, and two cam handles corresponding to the upper opposite sides of the locking rod, the limiting block and the limiting portion are limitedly matched, the head of the cam handle is provided with a locking pin, a connecting rod is connected between the two locking pins, and locking teeth are provided on the opposite sides of the upper part of the locking rod; when the cam handle is pressed down, the locking pin cooperates with the locking teeth, and the cam part of the cam handle locks the pressure block.

[0007] Preferably, limiting side plates are provided on opposite sides of the head of the cam handle, and a limiting space is provided between the limiting side plates on both sides to cooperate with the side of the locking rod, and the locking pin passes through the two limiting side plates and is connected to the connecting rod on the outside of the limiting side plates.

[0008] Preferably, the limiting side plate is circular, and the locking pin is connected to the center of the limiting side plate.

[0009] Preferably, both ends of the locking pin are connected to connecting rods.

[0010] Preferably, the pressure block is provided with a locking surface, a through hole is provided in the middle of the length of the locking surface, the locking rod moves through the through hole, and the cam parts of the two cam handles correspond to the parts on both sides of the length of the locking surface.

[0011] Preferably, the cross-sections of the through hole and the locking rod are both rectangular.

[0012] Preferably, the locking surface is provided with an upper vertical edge and a lower vertical edge on both sides of the width, the upper end of the upper vertical edge is provided with an upper pressing portion protruding toward the side, and the upper pressing portion presses the photovoltaic component, and the lower end of the lower vertical edge is provided with a lower supporting portion supported on the crossbeam.

[0013] Preferably, the crossbeam is a C-shaped structure, and the limiting portion is a limiting edge provided on both sides of the mouth of the C-shaped structure.

[0014] Preferably, the limit block is a T-shaped structure; and / or the limit block and the locking rod are an integral structure.

[0015] In addition, a photovoltaic system is provided, including a photovoltaic bracket and a photovoltaic assembly, wherein the photovoltaic bracket is provided with a plurality of longitudinally extending oblique beams and a plurality of cross beams fixed vertically and crosswise above the plurality of oblique beams, and the pressure block fixing device is installed on the cross beams.

[0016] The utility model adopts the above technical solution, which has the following beneficial effects:

[0017] 1. The photovoltaic module is fixed on the beam by a pressure block, and the pressure block is locked by a pressure block locking mechanism, wherein the pressure block locking mechanism includes a locking rod that moves through the pressure block, a limit block connected to the lower end of the locking rod, and two cam handles corresponding to the opposite sides of the upper part of the locking rod, the limit block is limited and matched with the limit part, the head of the cam handle is provided with a locking pin, a connecting rod is connected between the two locking pins, and locking teeth are provided on the opposite sides of the upper part of the locking rod; with this design, after the pressure block and the pressure block locking mechanism are combined together, the pressure block is placed in the installation position, and the limit block is limited and matched with the limit part, and then the pressure block locking mechanism is driven, and the two cam handles are pressed downward to make the locking pin match the locking teeth, and the cam part of the cam handle locks the pressure block, so that the photovoltaic module and the pressure block can be quickly fixed to the photovoltaic bracket without the use of bolts, which can effectively save the time and manpower for fixing the pressure block, thereby shortening the project construction period and solving the problem that the construction period of traditional photovoltaic power stations is long and the cost of photovoltaic power stations is high.

[0018] When the cam handle is pressed down, the locking pin cooperates with the locking teeth, and the cam part of the cam handle locks the pressure block. Compared with other bolt-free installation methods in the prior art, under the limiting action of the locking teeth, the position of the cam handle remains unchanged, and the locking force of the cam part on the pressure block is always maintained, which can enhance the fixing force of the pressure block. In addition, since two cam handles are used for locking at the same time, the fastening effect is improved and loosening is avoided.

[0019] The locking pins of the two cam handles are connected by a connecting rod, so that when the pressure block is locked, the relative positions of the two cam handles are maintained, and the locking pin and the lock teeth are locked. At the same time, it also facilitates the opening and closing of the two cam handles, corresponding to the tightening and disassembly of the pressure block.

[0020] In addition, by pulling up the two cam handles, the pressure block locking mechanism is unlocked and the pressure block is quickly removed, which plays a role in more efficient removal of the pressure block.

[0021] 2. Limiting side plates are provided on the opposite sides of the head of the cam handle, and a limiting space is provided between the limiting side plates on both sides to cooperate with the side of the locking rod. The locking pin passes through the two limiting side plates and is connected to the connecting rod on the outside of the limiting side plates. Therefore, the limiting side plates can maintain the relative position of the cam handle and the locking rod, ensuring that when the locking pin is locked with the lock tooth, the locking pin cannot move axially and disengage from the lock tooth.

[0022] 3. Since both ends of the locking pin are connected to the connecting rod, when the two cam handles are pressed down, the connecting rods on both sides work at the same time, so that the locking pin and the lock teeth cooperate. Due to the action of the connecting rod, in the locked state, the distance between the two locking pins is fixed, keeping the locking pin and the lock teeth locked.

[0023] 4. The pressure block is provided with a locking surface, and a through hole is provided in the middle of the length of the locking surface. The locking rod moves through the through hole. The locking rod is limited by the through hole and can move up and down along the through hole. Therefore, during the locking operation and the unlocking operation, the cam parts of the two cam handles correspond to the parts on both sides of the length of the locking surface to achieve locking and separation.

[0024] 5. A lock groove is formed between two adjacent lock teeth to cooperate with the lock pin. The upper tooth surface is set at an angle to guide the lock pin in and out of the lock groove, while the lower tooth surface extends horizontally or approximately horizontally, allowing a certain slope to prevent the two from separating when cooperating with the lock pin.

[0025] 6. Since the cross-sections of the through hole and the locking rod are both rectangular, the locking rod can move up and down relative to the through hole, but it can also rotate. Whether the locking mechanism is being driven to lock or in the locked state, the locking rod can be prevented from rotating, ensuring that the locking operation is completed and the locked state is maintained.

[0026] 7. Since the width of the locking surface is respectively provided with an upper vertical edge and a lower vertical edge on both sides, the upper end of the upper vertical edge is provided with an upper pressing portion protruding to the side, the upper pressing portion presses the photovoltaic module, and the lower end of the lower vertical edge is provided with a lower supporting portion supported on the crossbeam. In this way, the locking surface and the upper vertical edge and the lower vertical edge form a Z-shaped structure as a whole. After the upper pressing portion presses the A side of the photovoltaic module frame, there is a spacing space between the upper vertical edge and the B side of the photovoltaic module frame, and the locking rod moves through the spacing space.

[0027] 8. The crossbeam is a C-shaped structure. The limiting part is the limiting edge provided on both sides of the mouth of the C-shaped structure. The limiting block is a T-shaped structure, including a horizontal edge and a vertical edge connected vertically. During installation, the horizontal edge is parallel to the crossbeam and can be extended downward into the crossbeam and rotated 90 degrees to make the horizontal edge perpendicular to the crossbeam. The two ends of the horizontal edge cooperate with the limiting edge of the C-shaped crossbeam to prevent the pressure block fixing device from falling off.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0029] The utility model is further described below with reference to the accompanying drawings:

[0030] Figure 1 This is a schematic diagram of the structure of installing photovoltaic modules on a single photovoltaic bracket;

[0031] Figure 2 It is a structural schematic diagram of the pressing block fixing device;

[0032] Figure 3 Schematic diagram of the matching structure of the two cam handles and the locking rod Figure 1 ;

[0033] Figure 4 Schematic diagram of the matching structure of the two cam handles and the locking rod Figure 2 ;

[0034] Figure 5 Schematic diagram of the structure of the locking rod;

[0035] Figure 6 It is a structural diagram of two cam handles connected by a connecting rod;

[0036] Figure markings: photovoltaic assembly 100, photovoltaic bracket 1, column 11, inclined beam 12, horizontal beam 13, foundation 14, pressure block fixing device 2, pressure block 21, locking surface 211, through hole 2111, upper vertical edge 212, lower vertical edge 213, locking rod 22, locking teeth 221, upper tooth surface 2211, lower tooth surface 2212, limit block 23, cam handle 24, locking pin 241, limit side plate 242, cam part 243, connecting rod 25. [Specific implementation method]

[0037] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0038] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0039] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "horizontal," and "longitudinal" used below to indicate orientation or positional relationships are based solely on the orientation or positional relationships shown in the accompanying drawings and are used solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be understood as limiting the utility model.

[0040] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0042] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0043] Reference Figures 1 to 6 As shown, this embodiment provides a photovoltaic module pressing block fixing device 2 for fixing the photovoltaic module 100 and the photovoltaic bracket 1 together to form a photovoltaic system. Figure 1 The figure shows a photovoltaic bracket 1 with a common structure in the prior art. The photovoltaic bracket 1 is provided with a number of longitudinally extending inclined beams 12 and a number of cross beams 13 vertically cross-fixed above the several inclined beams. The inclined beams are supported by columns 11 below. The bottom of the columns 11 is connected to a foundation 14. The pressure block fixing device 2 is installed on the cross beam 13, and the cross beam 13 is provided with a limit portion.

[0044] The pressing block fixing device 2 includes a pressing block 21 for pressing the photovoltaic module 100 and a pressing block locking mechanism for locking the pressing block 21. The pressing block locking mechanism includes a locking rod 22 that moves through the pressing block 21, a limiting block 23 connected to the lower end of the locking rod, and two cam handles 24 correspondingly provided on opposite sides of the upper portion of the locking rod. The cam handle 24 has a cam portion 243 and a handle portion. The limiting block 23 is limitedly engaged with the limiting portion. The head of the cam handle 24 is provided with a locking pin 241. A connecting rod 25 is connected between the two locking pins 241. Locking teeth 221 are provided on opposite sides of the upper portion of the locking rod. When the cam handle 24 is pressed down, the locking pin 241 engages with the locking teeth 221, and the cam portion 243 of the cam handle 24 locks the pressing block 21.

[0045] The pressing block is locked by a pressing block locking mechanism. When installing the photovoltaic module, the pressing block is combined with the pressing block locking mechanism, the pressing block is placed in the installation position, and the limit block is matched with the limit part, and then the pressing block locking mechanism is driven. By pressing the two cam handles downward, the locking pin is matched with the locking teeth, and the cam part of the cam handle locks the pressing block. Therefore, the photovoltaic module and the pressing block can be quickly fixed to the photovoltaic bracket without the use of bolts. It can effectively save the time and manpower for fixing the pressing block, thereby shortening the project construction period and solving the problem of long construction period of traditional photovoltaic power stations and high cost of photovoltaic power stations.

[0046] When the cam handle is pressed down, the locking pin cooperates with the locking teeth, and the cam part of the cam handle locks the pressure block. Compared with other bolt-free installation methods in the prior art, under the limiting action of the locking teeth, the position of the cam handle remains unchanged, and the locking force of the cam part on the pressure block is always maintained, which can enhance the fixing force of the pressure block. In addition, since two cam handles are used for locking at the same time, the fastening effect is improved and loosening is avoided.

[0047] The locking pins of the two cam handles are connected by a connecting rod, so that when the pressure block is locked, the relative positions of the two cam handles are maintained, and the locking pin and the lock teeth are locked. At the same time, it also facilitates the opening and closing of the two cam handles, corresponding to the tightening and disassembly of the pressure block.

[0048] In addition, by pulling up the two cam handles, the pressure block locking mechanism is unlocked and the pressure block is quickly removed, which plays a role in more efficient removal of the pressure block.

[0049] Furthermore, the cam handle 24 is provided with limiting side plates 242 on opposite sides of the head, and a limiting space is provided between the limiting side plates 242 on both sides to cooperate with the side surface of the lock rod. The locking pin 241 passes through the two limiting side plates 242 and is connected to the connecting rod 25 on the outside of the limiting side plates. The limiting side plates on opposite sides of the cam handle head can maintain the relative position of the cam handle and the lock rod, ensuring that the locking pin cannot move axially and disengage from the lock teeth when the locking pin is locked with the lock teeth.

[0050] Specifically, the limiting side plate 242 is circular, and the locking pin 241 is connected to the center of the limiting side plate 242. In addition, both ends of the locking pin 241 are connected to the connecting rod 25. Therefore, when the two cam handles are pressed downward, the connecting rods on both sides work at the same time, so that the locking pin and the lock tooth cooperate. Due to the action of the connecting rod, in the locked state, the spacing between the two locking pins is fixed, keeping the locking pin and the lock tooth locked. The pressure block 21 is provided with a locking surface 211, and a through hole 2111 is provided in the middle of the length of the locking surface. The locking rod 22 moves through the through hole 2111, and the cam parts 243 of the two cam handles correspond to the parts on both sides of the length of the locking surface. The locking rod is movably limited by the through hole and can move up and down along the through hole, so that during the locking operation and the unlocking operation, the cam parts of the two cam handles correspond to the parts on both sides of the length of the locking surface to achieve locking and separation.

[0051] Preferably, the locking tooth 221 includes an upper tooth surface 2211 provided on the upper side and extending obliquely downward from the tooth root to the tooth top, and a lower tooth surface 2212 provided on the lower side and extending horizontally from the tooth root to the tooth top. A locking groove is formed between two adjacent locking teeth 221 to cooperate with the locking pin 241. Since the upper tooth surface 2211 is provided obliquely, it can guide the locking pin in and out of the locking groove, while the lower tooth surface 2212 extends horizontally or is approximately horizontal, allowing a certain inclination in order to avoid separation of the two when cooperating with the locking pin. In addition, the cross-sections of the through hole 2111 and the locking rod 22 are both rectangular. Therefore, the locking rod can move up and down relative to the through hole, but it can not only rotate, but also can avoid the locking rod from rotating whether it is in the locking state when the pressure block locking mechanism is driven or in the locked state, thereby ensuring the completion of the locking operation and maintaining the locked state.

[0052] Furthermore, the locking surface 211 is provided with an upper vertical edge 212 and a lower vertical edge 213 on opposite sides of its width. The upper end of the upper vertical edge is provided with an upper pressing portion protruding laterally, which compresses the photovoltaic module. The lower end of the lower vertical edge is provided with a lower support portion supported by the crossbeam. The locking surface 211, the upper vertical edge 212, and the lower vertical edge 213 form a Z-shaped structure. After the upper pressing portion compresses the photovoltaic module frame surface A, a space is provided between the upper vertical edge 212 and the photovoltaic module frame surface B, through which the locking rod 22 can move. Furthermore, the lower support portion can extend laterally from the lower end of the lower vertical edge to increase the support area.

[0053] In this embodiment, the crossbeam 13 is a C-shaped structure, and the limiting portion is a limiting edge provided on both sides of the mouth of the C-shaped structure, which is also a relatively common structure of the crossbeam at present. Correspondingly, the limiting block 23 is a T-shaped structure, including a horizontal edge and a vertical edge connected vertically, wherein the length of the horizontal edge is greater than the spacing between the limiting edges on both sides of the mouth of the C-shaped structure, but the width is less than the spacing between the limiting edges on both sides of the mouth of the C-shaped structure. During installation, the horizontal edge is parallel to the crossbeam and can be extended downward into the crossbeam and rotated 90 degrees. The horizontal edge is perpendicular to the crossbeam, and the two ends of the horizontal edge are limited by the limiting edge to prevent the pressure block fixing device from falling off. In addition, the limiting block 23 and the locking rod 22 are designed as an integral structure, including being welded into one. Of course, they can also be separated and combined with fasteners, such as screws.

[0054] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.

Claims

1. A photovoltaic module pressing block fixing device, used to fix the photovoltaic module on a beam, wherein the beam is provided with a limiting portion, characterized in that: The pressing block fixing device includes a pressing block for pressing the photovoltaic component and a pressing block locking mechanism for locking the pressing block. The pressing block locking mechanism includes a locking rod that moves through the pressing block, a limit block connected to the lower end of the locking rod, and two cam handles correspondingly arranged on the opposite sides of the upper part of the locking rod. The limit block is limitedly matched with the limit part, and the head of the cam handle is provided with a locking pin, a connecting rod is connected between the two locking pins, and locking teeth are provided on the opposite sides of the upper part of the locking rod; when the cam handle is pressed down, the locking pin cooperates with the locking teeth, and the cam part of the cam handle locks the pressing block.

2. A photovoltaic module pressing block fixing device according to claim 1, characterized in that: The head of the cam handle is provided with limiting side plates on both sides, and a limiting space is provided between the limiting side plates on both sides to cooperate with the side of the locking rod. The locking pin passes through the two limiting side plates and is connected to the connecting rod on the outside of the limiting side plates.

3. A photovoltaic module pressing block fixing device according to claim 2, characterized in that: The limiting side plate is circular, and the locking pin is connected to the center of the limiting side plate; and / or both ends of the locking pin are connected to the connecting rod.

4. A photovoltaic module pressing block fixing device according to claim 1, characterized in that: The locking tooth includes an upper tooth surface which is arranged on the upper side and extends obliquely downward from the tooth root to the tooth top, and a lower tooth surface which is arranged on the lower side and extends horizontally from the tooth root to the tooth top.

5. A photovoltaic module pressing block fixing device according to claim 1, characterized in that: The pressing block is provided with a locking surface, a through hole is provided at the middle position of the length of the locking surface, the locking rod moves through the through hole, and the cam parts of the two cam handles correspond to the parts on both sides of the length of the locking surface.

6. A photovoltaic module pressing block fixing device according to claim 5, characterized in that: The cross sections of the through hole and the locking rod are both rectangular.

7. A photovoltaic module pressing block fixing device according to claim 5, characterized in that: The locking surface is provided with an upper vertical edge and a lower vertical edge on both sides of the width. The upper end of the upper vertical edge is provided with an upper pressing portion protruding toward the side, and the upper pressing portion presses the photovoltaic component. The lower end of the lower vertical edge is provided with a lower supporting portion supported on the beam.

8. The photovoltaic module pressing block fixing device according to claim 1, characterized in that: The crossbeam is a C-shaped structure, and the limiting portion is a limiting edge provided on both sides of the mouth of the C-shaped structure.

9. A photovoltaic module pressing block fixing device according to claim 8, characterized in that: The limit block is a T-shaped structure; and / or the limit block and the locking rod are an integrated structure.

10. A photovoltaic system comprising a photovoltaic support and a photovoltaic module, wherein the photovoltaic support is provided with a plurality of longitudinally extending inclined beams and a plurality of cross beams vertically intersecting and fixed above the inclined beams, characterized in that: The crossbeam is mounted with the pressing block fixing device according to any one of claims 1 to 9.

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