Anti-loosening middle block for photovoltaic installation

Abstract

The utility model discloses a kind of photovoltaic installation is prevented from coming off middle pressure block, it is related to photovoltaic installation accessory technical field, including middle pressure block, the middle pressure block is connected with crossbeam guide rail by fastening assembly, plastic wing nut cooperation, for realizing the edge compression of photovoltaic panel;The inside of the middle pressure block is provided with self-locking assembly, and the self-locking assembly is used to lock the tightening state of fastening assembly.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic installation accessories technology, specifically a photovoltaic installation anti-loosening pressure block. Background Technology

[0002] The medium-pressure block used in photovoltaic installation is the middle part that connects and fixes two adjacent photovoltaic panels, while also being fastened to the guide rail below. Its main function is to connect multiple photovoltaic panels into a whole, enhance the structural strength and stability of the system, and resist external forces such as wind pressure.

[0003] Existing intermediate pressure blocks are fixed with bolts. During later use, the photovoltaic panel installation structure will sway due to the influence of wind. This swaying will cause the connecting bolts of the intermediate pressure block to loosen, resulting in the photovoltaic panel not being installed securely and the connection becoming loose. Based on this, an anti-loosening intermediate pressure block for photovoltaic installation is provided. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-loosening intermediate pressure block for photovoltaic installation in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic installation anti-loosening intermediate pressure block, comprising an intermediate pressure block, wherein the intermediate pressure block is connected to the crossbeam guide rail through fastening components and plastic wing nuts, for pressing the edges of the photovoltaic panel; The fastening assembly includes a straight groove top block, a circular locking block, and bolts. The straight groove top block, the circular locking block, and the bolts are connected and fixed in sequence from top to bottom. The plastic wing nut is snapped into the inner side of the crossbeam guide rail and passes through the middle of the bottom plate of the intermediate pressure block with bolts and is threadedly connected to the crossbeam guide rail and tightened, so as to realize the pressing operation of the intermediate pressure block on the photovoltaic panel. The inner side of the intermediate pressure block is provided with a self-locking component, which is used to lock the tightening state of the fastening component.

[0006] As a further improvement of this utility model: the self-locking component includes a limiting plate and a W-shaped spring sheet; The limiting plate is distributed inside the middle pressure block and sleeved on the outside of the bolt, and the W-shaped spring is symmetrically fixed on both sides of the limiting plate; When the bolts are fully tightened and the straight plane of the top block is parallel to the inner wall of the middle pressure block, the top transverse part of the W-shaped spring is engaged between the top block and the inner wall of the middle pressure block to achieve the locking operation of the fastening assembly.

[0007] As a further embodiment of this utility model: the bottom plate of the intermediate pressure block and the middle of the limiting plate are provided with through holes for bolts to pass through, and the outer diameter of the circular block is larger than the outer diameter of the through hole; The distance between the two straight planes of the straight groove top block matches the outer diameter of the circular card block, and the distance between the arc surfaces of the straight groove top block is greater than the outer diameter of the circular card block.

[0008] As a further embodiment of this utility model: the diameter of the arc-shaped surface rotation trajectory of the straight groove top block is smaller than the inner width of the middle pressure block, and when the straight plane of the straight groove top block is parallel to the inner wall side of the middle pressure block, the distance between the straight plane of the straight groove top block and the inner wall side of the middle pressure block is matched with the width of the top horizontal part of the W-shaped spring sheet. The width of the limiting plate matches the width of the inner wall of the intermediate pressure block.

[0009] As a further improvement of this utility model, the limiting plate and the W-shaped spring are integrally formed by stamping and bending processes.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By setting up a fastening component with a straight groove top block and a self-locking component, when the fastening component is fully tightened, the tightening state of the fastening component is stopped by operating a power tool when the straight surface of the straight groove top block is flush with the inner plane of the intermediate pressure block. In this way, after the W-shaped spring is reset, its top horizontal part is engaged between the straight groove top block and the inner wall of the intermediate pressure block to realize the locking operation of the fastening component. This effectively prevents the fastening component from loosening later and further improves the installation stability of the photovoltaic panel. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a schematic diagram showing the disassembled parts of this utility model; Figure 4 This is a schematic diagram of the straight groove type top block turning sleeve of this utility model.

[0012] In the diagram: 1. Medium pressure block; 2. Fastening assembly; 201. Straight groove top block; 202. Circular locking block; 203. Bolt; 3. Plastic wing nut; 4. Crossbeam guide rail; 5. Photovoltaic panel; 6. Self-locking assembly; 601. Limiting plate; 602. W-shaped spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4 In this embodiment of the utility model, a photovoltaic installation anti-loosening pressure block includes a pressure block 1. The pressure block 1 is connected to the crossbeam guide rail 4 through a fastening component 2 and a plastic wing nut 3, and is used to press the edge of the photovoltaic panel 5. The fastening assembly 2 includes a straight groove top block 201, a circular locking block 202, and a bolt 203. The straight groove top block 201, the circular locking block 202, and the bolt 203 are connected and fixed sequentially from top to bottom. The plastic wing nut 3 is snapped into the inner side of the crossbeam guide rail 4 and passes through the middle of the bottom plate of the intermediate pressure block 1 through the bolt 203 and is threadedly connected to and tightened with the crossbeam guide rail 4 to realize the pressing operation of the intermediate pressure block 1 on the photovoltaic panel 5. A self-locking component 6 is provided on the inner side of the medium pressure block 1. The self-locking component 6 is used to lock the tightening state of the fastening component 2. The self-locking component 6 includes a limit plate 601 and a W-shaped spring 602; The limiting plate 601 is distributed inside the middle pressure block 1 and sleeved on the outside of the bolt 203, and the W-shaped spring piece 602 is symmetrically fixed on both sides of the limiting plate 601. When the bolt 203 is fully tightened and the straight plane of the straight groove top block 201 is parallel to the inner wall side of the middle pressure block 1, the top transverse part of the W-shaped spring piece 602 is engaged between the straight groove top block 201 and the inner wall of the middle pressure block 1 to realize the locking operation of the fastening component 2. The bottom plate of the intermediate pressure block 1 and the middle of the limiting plate 601 are provided with through holes for the bolt 203 to pass through, and the outer diameter of the circular block 202 is larger than the outer diameter of the through hole. The distance between the two straight planes of the straight groove top block 201 matches the outer diameter of the circular card block 202, and the distance between the arc surfaces of the straight groove top block 201 is greater than the outer diameter of the circular card block 202.

[0015] In this embodiment, it should be noted that: during installation, the pressure block 1 needs to be equipped with a dedicated straight groove top block screwing sleeve according to the shape and structure of the straight groove top block 201. The straight groove top block screwing sleeve has a straight groove that matches the structural shape of the straight groove top block 201, and the depth of the straight groove is greater than the height of the straight groove top block 201 (e.g., Figure 4 The straight groove type top block screwing sleeve is used to be installed on power tools for tightening operations; The installation procedure is as follows: First, install the plastic wing nut 3 inside the crossbeam guide rail 4 and move it to the designated position (it should be noted that the plastic wing nut 3 is a standard accessory for existing photovoltaic panel installation, and its shape and structure will not be described in detail here). Then, place the self-locking component 6 inside the medium pressure block 1, aligning its through holes with each other. Then, insert the bolt 203 through the two through holes on the limit plate 601 and the medium pressure block 1 and thread it onto the plastic wing nut 3. At this time, the bolt 203 is not fully tightened. Next, the photovoltaic panel 5 is placed on the crossbeam guide rail 4, and the edge of the photovoltaic panel 5 is inserted into the middle of the edge protrusion of the middle pressure block 1 and the crossbeam guide rail 4. Then, the fastening component 2 is tightened by the straight groove top block screwing sleeve, which in turn makes the edge protrusion of the middle pressure block 1 press against the photovoltaic panel 5. During the above process, when the straight groove top block screwing sleeve is fitted onto the outside of the straight groove top block 201, the bottom of the straight groove top block screwing sleeve contacts the upper surface of the transverse part of the top of the W-shaped spring 602 and forms a downward pressure on it, causing the W-shaped spring 602 to deform and shrink and separate from the straight groove top block 201. At this time, the W-shaped spring 602 does not affect the screwing of the fastening assembly 2. When the fastening component 2 is fully tightened, the tightening state of the fastening component 2 is stopped by operating a power tool when the straight surface of the straight groove top block 201 is flush with the inner plane of the intermediate pressure block 1. Thus, after the straight groove top block is screwed off, the W-shaped spring 602 is reset, and the top horizontal part of the W-shaped spring 602 is engaged between the straight groove top block 201 and the inner wall of the intermediate pressure block 1 to realize the locking operation of the fastening component 2. This effectively prevents the fastening component 2 from loosening later and further improves the installation stability of the photovoltaic panel 5.

[0016] Please refer to this carefully. Figures 1-3 The diameter of the arc-shaped rotation trajectory of the straight groove top block 201 is smaller than the inner width of the middle pressure block 1. When the straight plane of the straight groove top block 201 is parallel to the inner wall side of the middle pressure block 1, the distance between the straight plane of the straight groove top block 201 and the inner wall side of the middle pressure block 1 matches the width of the top transverse part of the W-shaped spring piece 602. The width of the limiting plate 601 matches the width of the inner wall of the intermediate pressure block 1.

[0017] In this embodiment: This structure prevents the self-locking component 6 from rotating inside the pressure block 1. When the top horizontal part of the W-shaped spring 602 is reset and engaged between the straight plane of the straight groove top block 201 and the inner wall side of the pressure block 1, the straight groove top block 201 can be stably locked.

[0018] Please refer to this carefully. Figures 1-3 The limiting plate 601 and the W-shaped spring sheet 602 are integrally formed by stamping and bending processes.

[0019] In this embodiment, the self-locking component 6 has a simple processing technology and controllable cost, and can be applied to general-purpose medium-pressure blocks on the market, thus facilitating the promotion and use of the self-locking component 6.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic installation anti-loosening intermediate pressure block, comprising an intermediate pressure block (1), characterized in that, The intermediate pressure block (1) is connected to the crossbeam guide rail (4) through fastening components (2) and plastic wing nuts (3) to press the edges of the photovoltaic panel (5); The fastening assembly (2) includes a straight groove top block (201), a circular locking block (202), and a bolt (203). The straight groove top block (201), the circular locking block (202), and the bolt (203) are connected and fixed in sequence from top to bottom. The plastic wing nut (3) is snapped into the inner side of the crossbeam guide rail (4) and passes through the middle of the bottom plate of the intermediate pressure block (1) through the bolt (203) and is threadedly connected to the crossbeam guide rail (4) and tightened, so as to realize the pressing operation of the intermediate pressure block (1) on the photovoltaic panel (5). The inner side of the medium pressure block (1) is provided with a self-locking component (6), which is used to lock the tightening state of the fastening component (2).

2. The anti-loosening intermediate pressure block for photovoltaic installation according to claim 1, characterized in that, The self-locking component (6) includes a limiting plate (601) and a W-shaped spring (602); The limiting plate (601) is distributed on the inner side of the middle pressure block (1) and sleeved on the outer side of the bolt (203), and the W-shaped spring piece (602) is symmetrically fixed on both sides of the limiting plate (601); When the bolt (203) is fully tightened and the straight plane of the straight groove top block (201) is parallel to the inner wall side of the middle pressure block (1), the top transverse part of the W-shaped spring piece (602) is engaged between the straight groove top block (201) and the inner wall of the middle pressure block (1) to realize the locking operation of the fastening component (2).

3. The anti-loosening intermediate pressure block for photovoltaic installation according to claim 2, characterized in that, The bottom plate of the intermediate pressure block (1) and the middle part of the limiting plate (601) are provided with through holes for bolts (203) to pass through, and the outer diameter of the circular block (202) is larger than the outer diameter of the through hole; The distance between the two straight planes of the straight groove top block (201) matches the outer diameter of the circular card block (202), and the distance between the arc surfaces of the straight groove top block (201) is greater than the outer diameter of the circular card block (202).

4. The anti-loosening intermediate pressure block for photovoltaic installation according to claim 2, characterized in that, The diameter of the arc-shaped rotation trajectory of the straight groove top block (201) is smaller than the inner width of the middle pressure block (1). When the straight plane of the straight groove top block (201) is parallel to the inner wall side of the middle pressure block (1), the distance between the straight plane of the straight groove top block (201) and the inner wall side of the middle pressure block (1) matches the width of the top transverse part of the W-shaped spring sheet (602). The width of the limiting plate (601) matches the width of the inner wall of the middle pressure block (1).

5. A photovoltaic installation anti-loosening intermediate pressure block according to claim 3, characterized in that, The limiting plate (601) and the W-shaped spring (602) are integrally formed by stamping and bending processes.

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