CN218387389U

CN218387389U - Self-locking assembly and photovoltaic system

Info

Publication number: CN218387389U
Application number: CN202222870602.5U
Authority: CN
Inventors: 赵兴武
Original assignee: Jiangsu Tianhe Smart Distributed Energy Co ltd
Current assignee: Tianhe Fujia Energy Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-24
Anticipated expiration: 2032-10-28

Abstract

The application provides a self-locking assembly and a photovoltaic system, wherein the self-locking assembly comprises a pressing block for locking a photovoltaic assembly and a locking assembly; the locking assembly comprises an anchor rod, an anchoring piece and an eccentric wheel locking mechanism, wherein the anchor rod penetrates through the pressing block, the anchoring piece is rotatably connected with a first end of the anchor rod and can be locked at a set position, and the eccentric wheel locking mechanism is rotatably connected with a second end of the anchor rod; when the eccentric wheel locking mechanism rotates to the locking position of the pressing block, the anchoring piece rotates to the set position, and the eccentric wheel locking mechanism and the anchoring piece lock the pressing block on the support. In the technical scheme, the structure for locking the photovoltaic module is formed by adopting the eccentric locking mechanism, the anchor rod and the anchoring piece, when the photovoltaic module is fixed, the pressing block is locked and fixed by rotating the eccentric locking mechanism, and then the photovoltaic module is locked and fixed, so that the photovoltaic module is conveniently locked.

Description

Self-locking assembly and photovoltaic system

Technical Field

This application relates to photovoltaic board technical field, especially relates to a auto-lock subassembly and photovoltaic system.

Background

Distributed photovoltaic installation types mainly include several major categories such as BIPV photovoltaic roof, sunlight shed roof, flat roof inclination support, and the mode that BIPV commonly used waterproof guide rail and inclination support fixed photovoltaic module is unanimous basically, and the majority adopts the supporting square nut of aluminum alloy fixed briquetting and bolt fastening, and the common fixed way of sunshine shed roof cooperation rectangular steel pipe is that the photovoltaic module frame is fixed from the downside to the fastening clamp plate, or utilizes back of the body lockhole, the mode fastening photovoltaic module of bolt fastening photovoltaic frame hole.

The installation type of the photovoltaic project on the current market is the largest U-shaped steel support, and the support type is dominant no matter large industrial and commercial roof projects or scattered small roof projects, particularly ground power stations are large in size, short in construction period, large in input manpower and material resources, and high in labor cost in installation of the photovoltaic support and the photovoltaic module.

SUMMERY OF THE UTILITY MODEL

The application provides a self-locking assembly and a photovoltaic system for conveniently fixing a photovoltaic assembly.

The application provides a self-locking assembly, which comprises a pressing block and a locking assembly, wherein the pressing block is used for locking a photovoltaic assembly; wherein,

the locking assembly comprises an anchor rod penetrating through the pressing block, an anchoring piece which is rotatably connected with a first end of the anchor rod and can be locked at a set position, and an eccentric wheel locking mechanism which is rotatably connected with a second end of the anchor rod;

when the eccentric wheel locking mechanism rotates to a locking position abutting against the pressing block, the anchoring piece rotates to the set position, and the pressing block is locked on the support by the eccentric wheel locking mechanism and the anchoring piece.

In the technical scheme, the structure for locking the photovoltaic module is formed by adopting the eccentric locking mechanism, the anchor rod and the anchoring piece, when the photovoltaic module is fixed, the pressing block is locked and fixed by rotating the eccentric locking mechanism, and then the photovoltaic module is locked and fixed, so that the photovoltaic module is conveniently locked.

In a particular embodiment, the number of said anchors is at least two; at least two of the anchors are arranged along the circumferential direction of the anchor rod;

and the free end of the anchor rotates from the second end close to the anchor rod to the first end close to the anchor rod along the rotation direction of the anchor rotating to the set position. The limitation of the rotation direction of at least two anchors ensures that the anchors can be locked when being opened.

In a specific possible embodiment, the anchoring elements are anchor plates, the number of the anchor plates is two, and the two anchor plates are oppositely arranged; wherein,

the flaring direction of the two anchor plates faces away from the second end of the anchor rod;

the two anchor plates are provided with limiting structures which are used for abutting against each other when the two anchor plates rotate to the set positions. Two anchor sheets are used for locking fixation.

In a specific embodiment, a first rotating shaft is fixedly connected to the first end of the anchor rod, and the two anchor plates are respectively rotatably connected to the first rotating shaft. The anchor rod is connected with the anchor plate in a rotating mode through the first rotating shaft.

In a specific possible embodiment, the first rotating shaft is in threaded connection with the anchor rod; or,

the stock with first pivot is a body structure. The first shaft may be provided in various forms.

In a specific embodiment, the eccentric locking mechanism comprises an eccentric rotatably connected to the second end of the anchor rod; the pressure lever is fixedly connected with the eccentric wheel; wherein,

the eccentric wheel is provided with a first salient point for pressing the pressing block; the pressing rod is provided with a second salient point for pressing the pressing block; the first salient point and the second salient point are respectively arranged on two opposite sides of the rotating connection point of the eccentric wheel and the anchor rod. The two salient points are respectively arranged on two sides of the rotating axis of the eccentric wheel, so that the stability of the eccentric wheel locking mechanism is improved.

In a specific possible embodiment, the compact has an H-shaped structure; and the upper edge of the vertical part of the H-shaped structure is provided with a bending structure for pressing the photovoltaic module. Two photovoltaic modules can be pressed simultaneously.

In a specific possible embodiment, the eccentric locking mechanism is located in a recessed area of the H-shaped structure; the eccentric wheel locking mechanism can be tightly propped against the horizontal part of the H-shaped structure. The eccentric wheel locking mechanism is protected, and the risk that the eccentric wheel locking mechanism is loosened by external force is reduced.

In a particular embodiment, the press block includes a first vertical portion, a horizontal portion connected to the first vertical portion, and a second vertical portion connected to the horizontal portion; wherein,

the first vertical part and the second vertical part are arranged on two opposite sides of the horizontal part; the anchor rod is arranged on the horizontal part in a penetrating mode; the eccentric wheel locking mechanism can be tightly propped against the horizontal part;

one end of the first vertical part, which is far away from the horizontal part, is provided with a bending structure for pressing the photovoltaic module; one end of the second vertical part, which is far away from the horizontal part, is used for abutting against the support. A photovoltaic module can be locked.

In a specific possible embodiment, a second rotating shaft is fixedly arranged at the second end of the anchor rod, and the eccentric wheel is in rotating connection with the second rotating shaft; or the like, or a combination thereof,

eccentric wheel fixedly connected with third pivot, the second end of stock is provided with holds the olecranon type breach of third pivot. The eccentric wheel can be connected with the anchor rod in different modes.

In a second aspect, a photovoltaic system is provided, which includes a U-shaped beam, and a photovoltaic module disposed on the U-shaped beam; the self-locking assembly is characterized by further comprising the self-locking assembly; wherein,

the anchor is inserted into the U-shaped cross beam; the pressing block is pressed against the photovoltaic module;

when the eccentric wheel locking mechanism rotates to a locking position abutting against the pressing block, the pressing block is locked on the U-shaped cross beam by the eccentric wheel locking mechanism and the anchoring piece.

In the technical scheme, the structure for locking the photovoltaic module is formed by the eccentric locking mechanism, the anchor rod and the anchoring piece, when the photovoltaic module is fixed, the pressing block can be locked and fixed by rotating the eccentric locking mechanism, the photovoltaic module is locked and fixed, and the photovoltaic module is conveniently locked and fixed.

Drawings

Fig. 1 is a reference diagram illustrating a use state of a self-locking assembly according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of a self-locking assembly according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of an eccentric wheel assembly according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a reference diagram of a use state of another self-locking assembly provided in the embodiment of the present application.

Detailed Description

The present application is described in further detail below with reference to the figures and examples. The features and advantages of the present application will become more apparent from the description.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not conflict with each other.

To facilitate understanding of the self-locking assembly provided in the embodiment of the present application, an application scenario of the self-locking assembly provided in the embodiment of the present application is first described. Current photovoltaic module is when fixed U shaped steel, and is fixed with photovoltaic module through briquetting and bolt assembly cooperation. During assembly, the square nut of the bolt assembly needs to be placed into the clamping groove of the U-shaped steel, and the square nut can be rotationally fixed on the inner side of the U-shaped steel only by virtue of the plastic lantern ring; the bolt needs to be installed in the hole during installation, and needs to be fastened by a corresponding installation tool in a matched mode, namely, the installation speed is reduced to a certain extent due to the limitation of the tool. To this end, the embodiment of the present application provides a self-locking assembly to facilitate fixing of the photovoltaic assembly 200. The following detailed description is made with reference to the specific drawings and examples.

Referring to fig. 1, fig. 1 shows a schematic application diagram of a self-locking assembly 100 provided in an embodiment of the present application. As shown in fig. 1, when fixing the photovoltaic module 200, the photovoltaic module 200 is placed on the beam 300, and the photovoltaic module 200 is fixed to the beam 300 by pressing the self-locking assembly 100, thereby fixing the photovoltaic module 200. It should be understood that the cross beam 300 is taken as an example to support the photovoltaic module 200 in fig. 1, but the self-locking assembly 100 provided by the embodiment of the present application is not limited to be matched with the cross beam 300, and can be matched with other structures capable of supporting the photovoltaic module 200.

Referring to fig. 1 and 2 together, fig. 2 shows a schematic view of a self-locking assembly provided in an embodiment of the present application. The self-locking assembly 100 provided by the embodiment of the application mainly comprises a pressing block 20 and a locking assembly 10. The pressing block 20 is used for locking the photovoltaic module 200; the locking assembly 10 is used for locking and fixing the pressing block 20 on the support, so as to fix the photovoltaic module 200. In the embodiment of the present application, the supporting object is the cross beam 300 of the photovoltaic support, but of course, when the photovoltaic module 200 is fixed on other supporting structures, the supporting object may also be a corresponding supporting structure, and is not limited in the embodiment of the present application. For convenience of description, in the embodiment of the present application, the beam 300 of the photovoltaic bracket is taken as an example for illustration.

When the self-locking assembly 100 provided by the embodiment of the application is used, the photovoltaic assembly 200 is placed on the cross beam 300, then the pressing block 20 is pressed on the frame of the photovoltaic assembly 200, and then the locking assembly 10 is locked, so that the photovoltaic assembly 200 is locked on the cross beam 300.

It should be understood that when locking the photovoltaic module 200, at least two self-locking assemblies 10 are required, and at least two self-locking assemblies 10 are oppositely arranged relative to the photovoltaic module 200, so as to lock and fix the photovoltaic module 200. Illustratively, two opposite sides of the photovoltaic module 200 can be locked by the self-locking assembly 100, or four sides of the photovoltaic module 200 can be locked by the self-locking assembly 100, and of course, in addition to the above-described exemplary embodiments, the photovoltaic module 200 can be locked and fixed in other manners. However, no matter how several self-locking assemblies 100 are used, the structure and locking manner of each self-locking assembly 100 are similar, and one of the self-locking assemblies 100 is taken as an example for description.

With continued reference to fig. 1 and 2, a hold-down piece 20 is first described, the hold-down piece 20 being used to lock the photovoltaic module 200 to the beam 300. When the photovoltaic module is specifically arranged, the press block 20 has a bending structure 21 pressing on the frame of the photovoltaic module 200, and when the locking module 10 locks the press block 20 on the cross beam 300, the bending structure 21 of the press block 20 presses on the frame, so as to lock the photovoltaic module 200.

With continued reference to FIG. 2, the compact 20 illustrated in FIG. 2 is an H-shaped structure; which has two vertical portions opposite to each other and a horizontal portion connecting the two vertical portions. Wherein the upper edge 231 of the vertical part 23 of the H-shaped structure is provided with a bending structure 21 for pressing the photovoltaic module. An upper edge 231 of the vertical part 23 provided in the embodiment of the present application is defined, and two ends of the vertical part 23 along the length direction thereof are named as an upper edge 231 and a lower edge 232 respectively, wherein the upper edge 231 refers to an end of the pressing block 20 facing away from the cross beam when the pressing block 20 is placed on the cross beam, and the lower edge 232 refers to an end of the pressing block 20 facing towards the cross beam. The bending structure 21 is located on the upper edge 231 of the vertical portion 23, so that when the pressing block 20 is placed, the bending structure 21 can be pressed against the side, away from the cross beam, of the photovoltaic module, so that when the pressing block 20 is locked and fastened, the photovoltaic module can be pressed through the bending structure 21.

The pressing block 20 can also be regarded as a double-wing pressing block, and both the two vertical parts 23 and the corresponding bending structures 21 are symmetrical structures. The two bending structures 21 are bent outwards and form an inverted L-shaped structure with the vertical part 23 where the two bending structures 21 are located, when the pressing block 20 is placed on the cross beam, the bending structures 21 can be pressed on the frame of the photovoltaic assembly, and therefore when the pressing block 20 is locked by the locking assembly 10, the bending structures 21 are stressed to press the frame of the photovoltaic assembly downwards.

When the structure is adopted, two adjacent photovoltaic modules can be pressed through one pressing block 20. Illustratively, the photovoltaic modules are arranged in an array when arranged. The pressing block 20 can be placed in a gap between two adjacent photovoltaic modules, and the two bending structures 21 of the pressing block 20 can be in one-to-one correspondence with the frames of the two adjacent photovoltaic modules.

It will be appreciated that the compact 20 provided in the present embodiment may be used as a dual wing compact as described above to compact two photovoltaic modules simultaneously. Of course, a single-wing press block can be adopted to press only one photovoltaic module. For example, in the photovoltaic module array, when the frame located at the outer side of the photovoltaic module at the outermost edge is fixed, only the frame at the outermost side needs to be fixed, so that the pressing block may only have one bending structure to compress the frame.

Referring to fig. 1 and 2 together, the compact 20, whether a single-winged compact or a double-winged compact is used, has a recessed region 22, the recessed region 22 being configured to mate with the locking assembly 10. Illustratively, taking the compact 20 as an H-shaped structure, the concave region 22 is a region surrounded by two vertical portions 23 and a horizontal portion 24. When the locking assembly 10 is matched with the pressing block 20, the horizontal part 24 is provided with a through hole matched with the locking assembly 10, part of the structure of the locking assembly 10 can pass through the through hole and then is matched with the cross beam, and the other part of the structure of the locking assembly 10 is positioned in the recessed area 22 enclosed by the vertical part 23 and the horizontal part 24.

The locking assembly 10 is a main locking component of the self-locking assembly 100 provided in the embodiments of the present application. It includes anchor 12, anchor 13 and eccentric locking mechanism 11. Wherein, the anchoring piece 13 and the eccentric wheel locking mechanism 11 are respectively arranged at two opposite ends of the anchor rod 12 and are used for realizing locking and unlocking. The anchor rod 12 is used as a connecting structure to be inserted through the pressing block 20 and the cross beam. The following describes the structure of each part of the locking assembly 10 provided in the embodiment of the present application.

The anchor rod 12 is a straight rod structure that may be a round rod, a square rod, or other type of rod body. The anchor rod 12 has opposite ends along its length, which are designated as a second end and a first end, respectively, for convenience of description. Wherein the second end is used for being matched and connected with the eccentric wheel locking mechanism 11, and the first end is used for being matched and connected with the anchoring piece 13. When the anchor rod 12 is used, the anchor rod 12 is arranged on the pressing block 20 and the cross beam in a penetrating mode, the second end of the anchor rod 12 is located on one side of the pressing block 20, and the first end of the anchor rod 12 is located on one side of the cross beam. When the above-mentioned manner is adopted, the eccentric wheel locking mechanism 11 can be positioned at one side close to the pressing block 20, and the anchoring piece 13 is positioned at one side close to the cross beam, so that the pressing block 20 can be locked on the cross beam through the cooperation of the eccentric wheel locking mechanism 11 and the anchoring piece 13.

Illustratively, where the compact 20 has a horizontal portion 24, the anchor 12 is disposed through a bore in the horizontal portion 24. In addition, as shown in fig. 1, the cross beam in the embodiment of the present application is a U-shaped cross beam, and the open side of the U-shaped cross beam is provided with a bending structure 301 for bending inward to match the anchor 13 for anchoring. Referring to fig. 1 and 2 together, when the anchor rod 12 is inserted into the pressing block 20 and the cross beam, the eccentric wheel locking mechanism 11 may be located in the recessed area 22 of the pressing block 20 and may press against the horizontal portion 24 of the pressing block 20, and the anchor 13 may be located in the opening of the U-shaped cross beam and may press against the bending structure 301 of the cross beam, so that when the eccentric wheel locking mechanism 11 is locked, the pressing block 20 may be locked and fixed by the pressing of the eccentric wheel locking mechanism 11 against the horizontal portion 24 and the pressing of the anchor 13 against the bending structure 301 of the cross beam.

It should be understood that in the present embodiment, the structure of the cross beam 300 is not limited to the U-shaped cross beam 300, and a square cross beam 300 may be adopted, and the anchor rod 12 may be arranged through the square cross beam 300 in an opening manner, and the engagement with the anchor 13 may also be achieved. However, the cross member 300 is engaged with the anchor 13 in the same manner regardless of the form, and the cross member 300 is described as an example of a U-shaped cross member 300.

The locking assembly 10 provided by the embodiment of the present application will be described in detail below with reference to the anchor 13 and the eccentric locking mechanism 11.

With continued reference to fig. 1 and 2, the anchor member 13 is a structure for anchoring to the cross beam 300, and the anchor member 13 is rotatably connected to the first end of the anchor rod 12 and lockable in a set position. It should be understood that when the anchor 13 is locked in the set position, the anchor 13 can be fixed to the cross beam 300 by engaging with the eccentric locking mechanism 11.

With continued reference to fig. 1 and 2, two anchors 13 are illustrated in fig. 2, the anchors 13 being anchor plates. When the anchoring element 13 is in particular rotationally connected to the first end of the anchor rod 12, for example via the first rotational axis 14.

Illustratively, two anchors 13 are spaced on opposite sides of the anchor bar 12, and each anchor plate 13 is rotatably coupled to the anchor bar 12 by a first shaft 14. It should be understood that the length direction of the first rotating shaft 14 is parallel to the length direction of the cross beam 300, so that the anchors 13 positioned at both sides of the anchor rod 12 can be fixed in cooperation with the bent structure 301 of the cross beam 300 when being inserted into the cross beam 300.

For convenience of describing the rotation direction of the anchor 13, a rotation end 132 and a free end 131 of the anchor 13 are defined, wherein the rotation end 132 of the anchor 13 is the end of the anchor 13 rotatably connected to the first end of the anchor rod 12, and the free end 131 of the anchor 13 is the end far from the rotation end 132.

When anchor 13 is in the closed condition, free end 131 of anchor 13 is drawn together around anchor bar 12 and free end 131 of anchor 13 is adjacent the second end of anchor bar 12; with anchor 13 in the open state, free end 131 of anchor 13 is distal from anchor bar 12 and free end 131 of anchor 13 is closer to the first end of anchor bar 12. That is, in the rotational direction in which the anchor 13 is rotated to the set position, the free end 131 of the anchor 13 is rotated from proximate the second end of the anchor bar 12 to proximate the first end of the anchor bar 12.

When the anchor 13 is in the open state, the anchor 13 can press against the bent structure 301 of the cross beam. In addition, to ensure that the anchoring elements 13 are reliably pressed against the bent structures 301 of the cross-beam, the anchoring elements 13 can be locked in the open state when the anchoring elements 13 are arranged. I.e. the set position in which the anchoring member 13 is locked is the position in which the anchoring member 13 is in the open state. It will be appreciated that locking in the embodiment of the subject application is such that the anchor 13 cannot continue to rotate after it has been rotated to the set position.

As an example, the length direction of each anchor plate in the embodiment of the present application is parallel to the length direction of the first rotating shaft 14. Therefore, when the anchor 13 is expanded, the contact area of the bent structure 301 of the beam 300 is increased, and the anchoring capability of the anchor 13 is improved.

When the first rotating shaft 14 is specifically arranged, the first rotating shaft 14 is fixedly connected with the first end of the anchor rod 12, and the two anchoring elements 13 are respectively and rotatably connected with the first rotating shaft 14. Illustratively, the axis of the first rotating shaft 14 is perpendicular to the axis of the anchor rod 12, and in addition, when the first rotating shaft 14 is inserted into the cross beam 300, the length direction of the first rotating shaft 14 is parallel to the length direction of the cross beam 300, so that the anchor 13 can be pressed against the bending structure 301 of the cross beam 300 after being expanded.

In particular arrangements of the first shaft 14, the first shaft 14 may be connected to the first end of the anchor bar 12 in a variety of ways. Illustratively, one way is to thread the first shaft 14 to the anchor rod 12; alternatively, the anchor rods 12 are integral with the first shaft 14. That is, the first rotating shaft 14 may be a separate structure or an integrated structure with the anchor rod 12. The specific setting may be set as needed, and is not specifically limited in the embodiments of the present application.

When the anchoring elements 13 are locked, they can be locked against each other by means of the two anchoring elements 13. Illustratively, the two anchoring members 13 are provided with a limiting structure for pressing the two anchoring members 13 against each other when the two anchoring members 13 are rotated to the set position, and the limiting structure may be an end surface of the rotating end 132 of the anchoring member 13. When the two anchoring elements 13 are opened relatively, the two limiting structures are pressed against each other, so that the limiting anchoring elements 13 continue to rotate. In addition, when the above structure is adopted, the two anchoring members 13 are pressed against each other, so that the anchoring members 13 can be locked with each other. From the stress analysis, it can be seen that the larger the pressing force between the anchoring elements 13 and the cross beam, the larger the pressing force between the two anchoring elements 13, so as to ensure the reliability of the anchoring elements 13 in anchoring.

As an alternative example, when the anchoring element 13 is in the expanded state, as shown in fig. 1, the angle α between the anchoring element 13 and the anchor bar 12 may be between 30 ° and 90 °. That is, the opening width of the anchor member 13 can be set as desired. Illustratively, the angle between the anchor 13 and the anchor rod 12 may be different angles such as 30 °, 45 °, 60 °, 90 °, and the like. In a specific embodiment, the angle between the anchor 13 and the anchor rod 12 is 90 °, that is, the two anchors 13 are in a horizontal state, and the anchor 13 and the anchor rod 12 are integrally in an inverted T-shaped structure. So that the contact area between the anchor 13 and the cross beam can be increased, and the stability of the whole self-locking mechanism is further increased.

It should be understood that the anchor 13 provided in the embodiments of the present application may be locked in other ways than the locking manner described above. For example, in one embodiment, the anchoring element 13 may be pressed against the anchor bar 12 to be locked in the set position, that is, when the anchoring element 13 is rotated to the open state, the rotating end 132 of the anchoring element 13 may be pressed against the anchor bar 12 to be locked in the set position.

In the embodiment of the present application, the anchor member 13 may have other structures than the plate-like structure (anchor plate) described above. Illustratively, anchoring elements 13 may also be anchoring rods.

It should be understood that in the above-described embodiment, the number of the anchoring members 13 is exemplified as two, but the specific number of the anchoring members 13 is not limited in the embodiment of the present application. The number of anchoring elements 13 may be at least two. Illustratively, the number of anchors 13 can be a different number of two, three, four, etc. When more than two anchors are used, at least two anchors 13 are arranged around the axis of the anchor rod 12, i.e. the anchors 13 are arranged circumferentially along the anchor rod 12. Wherein each anchor 13 is rotatably connected to a first end of the anchor rod 12, and at least two anchors 13 are arranged around the axis of the anchor rod 12.

When the at least two anchors 13 are arranged circumferentially along the axis of anchor rod 12, anchors 13 form a similar inverted rib structure with anchor rod 12. When the at least two anchoring elements 13 rotate relative to the anchor rod 12, the anchoring elements 13 can be opened and closed relative to the anchor rod 12, and an opening state and a closing state are formed.

Wherein the closed state refers to the state in which the anchor 13 is drawn close around the anchor rod 12 and the open state refers to the state in which the anchor 13 is rotated relatively far from the anchor rod 12. The anchor 13 is in the open state and the anchor 13 is in the working state. When the above solution is adopted, the purpose is that in order to insert the anchor 13 into the beam, when the anchor 13 is in the closed state, the overall size of at least two anchors 13 is small, and the anchor 13 can be inserted into the beam 300, and when the anchor 13 is in the open state, the overall size of at least two anchors 13 is increased, so that the anchor 13 can be pressed against the bent structure 301 of the beam 300. Alternatively, where the cross beam 300 is a closed beam and an opening is made in the top surface of the cross beam 300, the anchor 13 penetrates into the cross beam 300 from the opening during assembly and may be anchored in the cross beam 300 when the anchor 13 is opened.

The locking assembly 10 provided by the embodiment of the present application further includes an eccentric locking mechanism 11, and the eccentric locking mechanism 11 is a main structure for realizing a locking function for the whole locking mechanism. The eccentric locking mechanism 11 is rotatably connected to the second end of the anchor rod 12, and when the eccentric locking mechanism 11 is rotated to a locking position against the pressing block 20, the anchoring member 13 is rotated to a set position, and the eccentric locking mechanism 11 and the anchoring member 13 lock the pressing block 20 to the support.

Taking the pressing block 20 placed on the cross beam as an example, the eccentric wheel locking mechanism 11 is located in a recessed area of the pressing block 20, and when the eccentric wheel 111 rotates to the locking position, the eccentric wheel locking mechanism 11 can abut against a horizontal portion of the H-shaped structure, and the anchoring member 13 abuts against and contacts with the cross beam, so as to lock and fix the pressing block 20.

With continued reference to fig. 1 and 2, the eccentric locking mechanism 11 provided in the embodiment of the present application includes an eccentric 111, the eccentric 111 is rotatably connected to the second end of the anchor rod 12, during the rotation of the eccentric 111, the curved surfaces with different radii press against the horizontal portion 24 of the pressing block 20, and as the eccentric 111 rotates, the eccentric 111 presses against the horizontal portion 24 of the pressing block 20, so that the pressing block 20 can be pressed against the cross beam 300 through the cooperation between the eccentric 111 and the anchor 13, and the photovoltaic module 200 is pressed against and fixed on the cross beam 300. In a specific rotational connection, the eccentric 111 is fixedly connected to the second end of the anchor rod 12 via the second rotational shaft 15. The second rotating shaft 15 may be rotatably connected to the anchor rod 12 or the second rotating shaft 15 may be fixedly connected to the anchor rod 12.

When the combined type anchor block is used specifically, the whole assembled pressing block 20 is opposite to the notch of the cross beam 300, when the combined type anchor block is inserted into the notch of the cross beam 300, the anchor block 13 can be folded along the anchor rod 12, after the combined type anchor block falls into the notch of the cross beam 300, the anchor block 13 can be automatically opened under the action of self gravity, the anchor rod 12 is lifted upwards, and the anchor block 13 is clamped at the notch of the cross beam 300. After the assembly is mounted in place, the eccentric wheel locking mechanism 11 is rotated by abutting against the pressing block 20, so that the second rotating shaft 15 of the eccentric wheel locking mechanism 11 is positioned at the higher side, and the fastening mounting is completed.

It should be understood that, in the eccentric wheel 111 provided in the embodiment of the present application, the contour line of the edge may be an elliptical arc line, a circular arc line, or another type of arc line, which is not specifically limited in the embodiment of the present application.

As an alternative, the second end of the anchor rod 12 is fixedly provided with a second rotating shaft 15, and the eccentric 111 is rotatably connected with the second rotating shaft 15. When the above structure is adopted, an integral structure or a separate structure may be adopted between the second rotating shaft 15 and the anchor rod 12. For example, the second rotating shaft 15 may be integrally formed with the anchor rod 12, or the second rotating shaft 15 may be disposed through the anchor rod 12 and fixed thereto by interference. But whether it is an integral structure or a separate structure. When the second rotating shaft 15 is provided, the axis of the second rotating shaft 15 and the axis of the first rotating shaft 14 may be provided in parallel.

As a variant, the eccentric 111 and the rotation shaft for rotational connection between the anchor rods 12 may also be fixedly connected to the rotation shaft by means of the eccentric 111. Illustratively, the eccentric 111 is fixedly connected with a third rotating shaft, and the second end of the anchor rod 12 is provided with an olecranon-shaped notch for accommodating the third rotating shaft. The opening direction of the olecranon-shaped gap is inclined downwards, and the third rotating shaft can be clamped in the olecranon-shaped gap during assembly. When the eccentric wheel 111 rotates to a position abutting against the pressing block 20, the third rotating shaft is pressed in the notch by the reverse acting force of the eccentric wheel 111, so that the reliability of the whole device is ensured. In addition, when the scheme is adopted, the whole device can be conveniently detached and the eccentric wheel locking mechanism 11 can be conveniently arranged. For example, when the thickness of the photovoltaic module 200 changes, the size between the corresponding pressing block 20 and the cross beam 300 also changes, and at this time, the pressing block 20 and the cross beam 300 can be adapted to the change by replacing different eccentric wheel locking mechanisms 11, so as to ensure the locking and fixing of the photovoltaic module 200.

As an alternative, in order to facilitate rotating the eccentric wheel 111, the eccentric wheel locking mechanism 11 according to the embodiment of the present application further includes a pressing rod 112, and the pressing rod 112 is fixedly connected with the eccentric wheel 111, for example, the pressing rod 112 and the eccentric wheel 111 may be of an integral structure, or fixedly connected by welding or bonding.

Referring to fig. 3 and 4, fig. 3 shows a force analysis diagram of the eccentric wheel 111. Fig. 4 shows a partially enlarged view at a in fig. 3. When the eccentric 111 and the pressing rod 112 are specifically arranged, the eccentric 111 has a first salient point a for pressing the pressing block 20; the pressure rod 112 is provided with a second salient point b for pressing the pressure block 20; the first salient point a and the second salient point b are respectively arranged on two opposite sides of the rotational connection point of the eccentric wheel 111 and the anchor rod 12. When the pressing block 20 is locked, the first salient point a and the second salient point b respectively press against the pressing block 20, and because the two salient points are respectively arranged at two sides of the rotating connection point of the eccentric wheel 111 and the anchor rod 12, the first salient point a and the second salient point b can form a stable support.

The scheme adopts an eccentric wheel locking mechanism 11 as a main fastening accessory, under the loose state, the rotating axis of an eccentric wheel 111 is positioned at the lower side, a pressure rod 112 is not subjected to pull-up force, and when the eccentric wheel lock 111 rotates to the side with the higher axis, the pressure block 20 can be pressed tightly. In a fastening state, the axle center of the eccentric wheel locking mechanism 11 rotates to the right side of the first salient point a, the anchor rod 12 applies a downward pulling force f1, the contact surface of the pressing block 20 has a reverse support counter force f2, and a moment arm interval e is formed between the two forces. In the tight-pushing state, the eccentric wheel locking mechanism 11 always keeps the tight-locking state. The pressing rod 112 has a second protruding point b, and in the fastening state, the second protruding point b will push the pressing block 20, and there will be a support reaction force f to limit the excessive rotation of the second rotating shaft, and keep the axial stress point f1 at a higher position, so that the eccentric wheel locking mechanism 11 keeps a fastening state.

It can be seen from the above description that, when the self-locking module provided by the embodiment of the present application is adopted, the structure for locking the photovoltaic module 200 is formed by adopting the eccentric locking mechanism 11, the anchor rod 12 and the anchor 13, and when the photovoltaic module 200 is fixed, the pressing block 20 can be locked and fixed by rotating the eccentric locking mechanism, so that the photovoltaic module 200 is locked and fixed, and the locking of the photovoltaic module 200 is facilitated.

Referring to fig. 5, fig. 5 shows a modified structure based on fig. 1. The reference numerals in fig. 5 may refer to the same reference numerals in fig. 1.

Fig. 5 differs from fig. 1 in the structure of the compact 16, and the compact 16 in fig. 5 is a single-wing compact 16, and its specific structure is: the pressing block 16 includes a first vertical portion 161 and a second vertical portion 162 which are oppositely disposed, and a horizontal portion connecting the first vertical portion 161 and the second vertical portion 162. Wherein the first and second

vertical portions

161 and 162 are arranged at opposite sides of the horizontal portion.

When the first vertical part 161 and the second vertical part 162 are arranged, one end of the first vertical part 161, which is far away from the horizontal part, is provided with a bending structure for pressing the photovoltaic module 200; one end of the second vertical portion 162 away from the horizontal portion is used for abutting against the support. Illustratively, the overall compact 16 is shaped like an h-shaped structure. The first vertical portion 161 and the second vertical portion 162 have two opposite end legs facing the cross beam 300, and the end legs of the second vertical portion 162 are in pressing contact with the cross beam 300 to ensure the stability of the whole pressing block 16. The first vertical portion 161 has one end leg having a height higher than that of the horizontal portion, and the end leg is provided with a bending structure bent outward. When the photovoltaic module 200 is fixed, the photovoltaic module 200 can be pressed by the bending structure.

In addition, when the locking assembly 10 is matched with the pressing block 16, the anchor rod 12 is arranged in the horizontal part in a penetrating mode; the eccentric wheel locking mechanism 11 of the locking assembly 10 can be tightly pressed against the horizontal part to realize locking and fixing of the pressing block 16.

The embodiment of the present application further provides a photovoltaic system, which includes a U-shaped cross beam 300, and a photovoltaic module disposed on the U-shaped cross beam 300; also included is the self-locking assembly of any of the above; wherein the anchor is inserted into the U-beam 300; the pressing block is pressed against the photovoltaic module; when the eccentric locking mechanism rotates to a locking position abutting against the pressing block, the eccentric locking mechanism and the anchoring piece lock the pressing block on the U-shaped cross beam 300.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on operational states of the present application, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application.

In the description of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly specified or limited. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The present application has been described above in connection with preferred embodiments, which are intended to be exemplary only and illustrative only. On the basis of the above, the present application can be subjected to various substitutions and improvements, and the substitutions and the improvements are all within the protection scope of the present application.

Claims

1. A self-locking assembly is characterized by comprising a pressing block and a locking assembly, wherein the pressing block is used for locking a photovoltaic assembly; wherein,

when the eccentric wheel locking mechanism rotates to a locking position abutting against the pressing block, the anchoring piece rotates to the set position, and the eccentric wheel locking mechanism and the anchoring piece lock the pressing block on the support.

2. The self-locking assembly of claim 1, wherein the number of anchors is at least two; at least two anchors are arranged along the circumferential direction of the anchor rod;

and the free end of the anchor rotates from the second end close to the anchor rod to the first end close to the anchor rod along the rotation direction of the anchor rotating to the set position.

3. The self-locking assembly of claim 2, wherein the anchor is an anchor plate, the number of anchor plates is two, and the two anchor plates are disposed opposite to each other; wherein,

the two anchor plates are provided with limiting structures which are used for abutting against each other when the two anchor plates rotate to the set positions.

4. The self-locking assembly of claim 3, wherein the anchor rod is fixedly coupled at a first end thereof to a first shaft, and the two anchor plates are rotatably coupled to the first shaft, respectively.

5. The self-locking assembly of claim 4, wherein the first shaft is threadedly connected to the anchor rod; or,

the anchor rod and the first rotating shaft are of an integrated structure.

6. The self-locking assembly of any one of claims 1 to 5, wherein the eccentric locking mechanism comprises an eccentric rotatably connected to the second end of the anchor rod; the pressure lever is fixedly connected with the eccentric wheel; wherein,

the eccentric wheel is provided with a first convex point used for pressing the pressing block; the pressing rod is provided with a second salient point for pressing the pressing block; the first salient point and the second salient point are respectively arranged on two opposite sides of the rotating connection point of the eccentric wheel and the anchor rod.

7. The self-locking assembly of claim 6, wherein the compact is an H-shaped structure; and the upper edge of the vertical part of the H-shaped structure is provided with a bending structure for pressing the photovoltaic module.

8. The self-locking assembly of claim 7, wherein the eccentric locking mechanism is located in a recessed area of the H-shaped structure; the eccentric wheel locking mechanism can be tightly propped against the horizontal part of the H-shaped structure.

9. The self-locking assembly of claim 6, wherein the press block includes a first vertical portion, a horizontal portion connected to the first vertical portion, and a second vertical portion connected to the horizontal portion; wherein,

one end of the first vertical part, which is far away from the horizontal part, is provided with a bending structure for pressing the photovoltaic module; one end of the second vertical part, which is far away from the horizontal part, is used for abutting against the support.

10. The self-locking assembly of claim 6, wherein a second shaft is fixedly disposed at the second end of the anchor rod, and the eccentric is rotatably coupled to the second shaft; or,

eccentric wheel fixedly connected with third pivot, the second end of stock is provided with holds the olecranon type breach of third pivot.

11. The photovoltaic system is characterized by comprising a U-shaped cross beam and a photovoltaic module arranged on the U-shaped cross beam; further comprising a self-locking assembly according to any one of claims 1 to 10; wherein,

when the eccentric wheel locking mechanism rotates to a locking position for tightly abutting against the pressing block, the eccentric wheel locking mechanism and the anchoring piece lock the pressing block on the U-shaped cross beam.