A photovoltaic module frame mounting assembly to prevent nuts from loosening

Abstract

This utility model discloses a photovoltaic module frame mounting assembly for preventing nuts from loosening, including a frame assembly, a hexagonal head, and a bolt. The bolt is positioned between the frame assembly and the hexagonal head. A flange is integrally formed at the bottom of the hexagonal head, and a flat washer is positioned between the flange and the frame assembly. The flat washer has a bolt through hole in its center, an upper barb integrally formed on its upper surface, and a lower barb integrally formed on its lower surface. A threaded hole is formed in the center of the hexagonal head. In this photovoltaic module frame mounting assembly for preventing nuts from loosening, the bolt first passes through the bracket hole and then the frame hole in sequence. Then, a barbed washer is placed on the surface in contact with the frame, and the bolt thread is fitted into the center hole of the washer. Finally, a flange nut is installed on the bolt thread until it is fully pre-tightened, providing excellent anti-reverse rotation effect.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module frame mounting technology, and in particular to a photovoltaic module frame mounting component for preventing nuts from loosening. Background Technology

[0002] A photovoltaic (PV) module frame mounting assembly is a support device for quickly positioning PV module frames. As the PV market becomes increasingly prosperous, projects with favorable environments are becoming increasingly scarce, leading to various customer complaints, with PV frame assembly installation issues being particularly prominent. The PV frame assembly connects to the PV bracket via four symmetrical bolt holes on its long frame, fixing the module to the corresponding bracket. It uses M8 fasteners, which pass through the frame holes and bracket holes in sequence before being secured with nuts; this is bolt installation. With continuous technological advancements, the manufacturing process requirements for PV module frame mounting assemblies are becoming increasingly stringent.

[0003] Existing photovoltaic module frame mounting components have certain drawbacks in use. This installation method works fine under static conditions, but photovoltaic modules are installed in outdoor environments, especially in harsh weather. Under dynamic gusts of wind, the up-and-down swaying of the module causes irregular vibrations of the frame, bracket, and other components. Over time, the bolts and nuts will slowly loosen and rotate. Once the nuts loosen, the frame and bracket will have an unreliable connection. The up-and-down vibration will cause the hole area of ​​the frame to be easily torn, broken, or otherwise irreversibly damaged, leading to module failure. To address this, we propose a photovoltaic module frame mounting component that prevents nuts from loosening. Utility Model Content

[0004] Technical problem solved: In view of the shortcomings of the prior art, this utility model provides a photovoltaic module frame mounting component to prevent nuts from loosening. First, the bolt passes through the bracket hole and the frame hole in sequence. Then, a barbed washer is placed on the surface in contact with the frame. The bolt thread is fitted into the middle hole of the washer. Finally, a flange nut is installed on the bolt thread until it is fully pre-tightened. It has a good anti-reverse effect and can effectively solve the problems in the background art.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a photovoltaic module frame mounting assembly for preventing nuts from loosening, comprising a frame assembly, a hexagonal head, and a bolt, wherein the bolt is positioned between the frame assembly and the hexagonal head, a flange is integrally formed at the bottom of the hexagonal head, a flat washer is positioned between the flange and the frame assembly, a bolt through hole is provided in the middle of the flat washer, an upper barb is integrally formed on the upper surface of the flat washer, and a lower barb is integrally formed on the lower surface of the flat washer.

[0006] Preferably, the hexagonal head has a threaded hole in the middle, the inner ring of the flange has a flange groove and a limiting protrusion, and the flat washer and the frame assembly are positioned by an elastic clamping mechanism.

[0007] Preferably, the photovoltaic module frame mounting assembly for preventing nuts from loosening is characterized in that: the elastic clamping mechanism includes an elastic pad, an upper sealing assembly, a clamping spring, and a lower sealing assembly; the upper sealing assembly is positioned inside the flat washer; the lower sealing assembly is positioned inside the frame assembly; and the elastic pad and clamping spring are positioned between the upper sealing assembly and the lower sealing assembly.

[0008] Preferably, the center of the hexagonal head is fixed by a threaded bolt, and the flat washer and the frame assembly are sealed and positioned by an elastic clamping mechanism.

[0009] Preferably, the upper sealing assembly and the lower sealing assembly are elastically sealed by an elastic pad and a clamping spring.

[0010] Preferably, the frame assembly and the hexagonal head are fixed together by bolts and flanges, and sealed by flat washers.

[0011] Beneficial effects: Compared with the prior art, this utility model provides a photovoltaic module frame mounting assembly for preventing nuts from loosening, which has the following beneficial effects: In this photovoltaic module frame mounting assembly for preventing nuts from loosening, the bolt first passes through the bracket hole and the frame hole in sequence, then a barbed washer is placed on the surface in contact with the frame, the bolt thread is fitted into the middle hole of the washer, and finally a flange nut is installed on the bolt thread until it is fully pre-tightened, which has a good anti-reverse effect. The entire photovoltaic module frame mounting assembly has a simple structure, is easy to operate, and has a better effect than the traditional method. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0013] Figure 2 This is a schematic diagram of the flange and flat washer combination in a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0014] Figure 3 This is a schematic diagram of the hexagonal head in a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0015] Figure 4 This is a schematic diagram of the flange structure in a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0016] Figure 5This is a schematic diagram of the flat washer in a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0017] Figure 6 This is a schematic diagram of the overall installation structure of a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0018] Figure 7 This is a schematic diagram of the bottom of the flat washer in a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0019] Figure 8 This is a schematic diagram of the elastic clamping mechanism in a photovoltaic module frame mounting assembly for preventing nuts from loosening, according to this utility model.

[0020] In the diagram: 1. Frame assembly; 2. Hex head; 3. Bolt; 4. Flange; 5. Flat washer; 6. Lower barb; 7. Upper barb; 8. Threaded hole; 9. Flange groove; 10. Limiting protrusion; 11. Bolt through hole; 12. Elastic clamping mechanism; 13. Elastic pad; 14. Upper sealing assembly; 15. Clamping spring; 16. Lower sealing assembly. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-8 As shown, a photovoltaic module frame mounting assembly for preventing nuts from loosening includes a frame assembly 1, a hexagonal head 2, and a bolt 3. The bolt 3 is positioned between the frame assembly 1 and the hexagonal head 2. A flange 4 is integrally formed at the bottom of the hexagonal head 2. A flat washer 5 is positioned between the flange 4 and the frame assembly 1. A bolt through hole 11 is opened in the middle of the flat washer 5. An upper barb 7 is integrally formed on the upper surface of the flat washer 5, and a lower barb 6 is integrally formed on the lower surface of the flat washer 5. First, the bolt passes through the bracket hole and the frame hole in sequence. Then, the barb washer is placed on the surface in contact with the frame. The bolt thread is fitted into the middle hole of the washer. Finally, the flange nut is installed on the bolt thread until it is fully pre-tightened, which has a good anti-reverse effect.

[0025] Furthermore, the hexagonal head 2 has a threaded hole 8 in the middle, the inner ring of the flange 4 has a flange groove 9 and a limiting protrusion 10, and the flat washer 5 and the frame assembly 1 are positioned by an elastic clamping mechanism 12.

[0026] Furthermore, a photovoltaic module frame mounting assembly for preventing nuts from loosening is characterized in that: the elastic clamping mechanism 12 includes an elastic pad 13, an upper sealing assembly 14, a clamping spring 15 and a lower sealing assembly 16, the upper sealing assembly 14 is positioned inside the flat washer 5, the lower sealing assembly 16 is positioned inside the frame assembly 1, and the elastic pad 13 and the clamping spring 15 are positioned between the upper sealing assembly 14 and the lower sealing assembly 16.

[0027] Furthermore, the center of the hexagonal head 2 is fixed by a threaded hole 8 through a bolt 3, and the flat washer 5 and the frame assembly 1 are sealed and positioned by an elastic clamping mechanism 12.

[0028] Furthermore, the upper sealing assembly 14 and the lower sealing assembly 16 are elastically sealed by the elastic pad 13 and the clamping spring 15.

[0029] Furthermore, the frame assembly 1 and the hexagonal head 2 are fixed together by bolts 3 and flanges 4, and sealed by flat washers 5.

[0030] Working principle: This utility model includes a frame assembly 1, a hexagonal head 2, a bolt 3, a flange 4, a flat washer 5, a lower barb 6, an upper barb 7, a threaded hole 8, a flange groove 9, a limiting protrusion 10, a bolt through hole 11, an elastic clamping mechanism 12, an elastic pad 13, an upper sealing assembly 14, a clamping spring 15, and a lower sealing assembly 16. The main external structure of the flange hexagonal head nut is the same as that of a normal hexagonal flange nut, with a threaded through hole, a hexagonal head, and a flange. The flange has a circular groove inward, and there is a ring of evenly distributed limiting protrusions in the groove.

[0031] The difference between barbed flat washers and ordinary flat washers is that barbed washers have barbed structures on both sides. These barbs are formed during the stamping process and are symmetrical on both sides. The barbs and the flat surface of the flat washer are elastically connected. After being compressed vertically, the barbs have a certain degree of resilience. This material is generally spring steel, which is harder than aluminum alloy.

[0032] During the pre-tightening process, the flat washer screw will slowly compress the barbs on the flat washer, and the tips of the barbs will press against the limiting protrusion in the opposite direction of the nut pre-tightening.

[0033] First, the bolts are passed through the bracket holes and frame holes in sequence. Then, a barbed washer is placed on the surface that contacts the frame. The bolt thread is inserted into the middle hole of the washer. Finally, a flange nut is installed on the bolt thread until it is fully pre-tightened. During this process: 1. The nut is generally pre-tightened in a clockwise direction. The nut groove and the groove limiting protrusion will continuously rub against each other as the nut rotates clockwise until the highest point of the flat washer barb presses against the junction of the groove and the protrusion after full pre-tightening; 2. The barbs on the front and back of the flat washer are compressed. The front barb (the contact surface with the nut flange surface) is continuously compressed under the pressure of the nut groove until situation 1 occurs; while on the back, when the nut pre-tightening begins, the barb pierces into the relatively soft aluminum frame, and the flat washer and the frame surface form a whole, and cannot generate rotational force under the action of the back barb.

[0034] In the event of strong winds and vibrations, a conventional nut will move in the opposite direction (loosening by rotating counterclockwise). In the patented design, the flat washer cannot rotate, and the nut is held in place by the barbs of the elastic washer, preventing it from rotating counterclockwise and thus preventing the nut from moving.

[0035] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A photovoltaic module frame mounting assembly to prevent nut loosening comprising of frame assembly (1), hex head (2) and bolt (3), characterized in that: The bolt (3) is positioned between the frame assembly (1) and the hexagonal head (2). The bottom of the hexagonal head (2) is integrally formed with a flange (4). A flat washer (5) is positioned between the flange (4) and the frame assembly (1). A bolt through hole (11) is opened in the middle of the flat washer (5). An upper barb (7) is integrally formed on the upper surface of the flat washer (5). A lower barb (6) is integrally formed on the lower surface of the flat washer (5).

2. A photovoltaic module frame mounting assembly that prevents nut loosening according to claim 1, characterized in that: The hexagonal head (2) has a threaded hole (8) in the middle, the inner ring of the flange (4) has a flange groove (9) and a limiting protrusion (10), and the flat washer (5) is positioned with an elastic clamping mechanism (12) between it and the frame assembly (1).

3. A photovoltaic module frame mounting assembly that prevents nut loosening according to claim 2, wherein: The elastic clamping mechanism (12) includes an elastic pad (13), an upper sealing assembly (14), a clamping spring (15), and a lower sealing assembly (16). The upper sealing assembly (14) is positioned inside the flat washer (5), and the lower sealing assembly (16) is positioned inside the frame assembly (1). The elastic pad (13) and the clamping spring (15) are positioned between the upper sealing assembly (14) and the lower sealing assembly (16).

4. A photovoltaic module frame mounting assembly that prevents nut loosening according to claim 2, wherein: The hexagonal head (2) is fixed in the middle by a threaded hole (8) through a bolt (3), and the flat washer (5) and the frame assembly (1) are sealed and positioned by an elastic clamping mechanism (12).

5. A photovoltaic module frame mounting assembly that prevents nut loosening according to claim 3, wherein: The upper sealing assembly (14) and the lower sealing assembly (16) are elastically sealed by an elastic pad (13) and a clamping spring (15).

6. A photovoltaic module frame mounting assembly that prevents nut loosening according to claim 1, wherein: The frame assembly (1) and the hexagonal head (2) are fixed together by bolts (3) and flanges (4), and sealed by flat washers (5).

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