CN113346833B

CN113346833B - Friction locking adjusting type photovoltaic bracket

Info

Publication number: CN113346833B
Application number: CN202110806057.0A
Authority: CN
Inventors: 王士涛; 马亚男; 刘海军
Original assignee: Arctech Solar Holding Co Ltd
Current assignee: Arctech Solar Holding Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2023-10-20
Anticipated expiration: 2041-07-16
Also published as: CN113346833A

Abstract

The application discloses a friction locking adjusting type photovoltaic bracket, which comprises a main beam and at least one upright post. The top end of each upright post is provided with a bearing sleeve, and a bearing is embedded in the bearing sleeve. The main beam is inserted into the bearing. The friction locking device comprises a power mechanism and at least one locking mechanism, wherein the locking mechanism comprises a first locking piece, a second locking piece and an adjusting rod. The adjusting rod is used for enabling the first locking piece and the second locking piece to synchronously move towards or away from each other under the driving of the power mechanism. When the first locking piece and the second locking piece synchronously move in opposite directions and are abutted to the bearing sleeve, the bearing is locked in the bearing sleeve so as to fix the main beam. When the first locking piece and the second locking piece synchronously move in opposite directions and are separated from the bearing sleeve, the bearing rotates relative to the bearing sleeve so as to adjust the rotation angle of the main beam. The application can greatly simplify the structure of the photovoltaic bracket and greatly improve the adjusting efficiency and the adjusting effect of the photovoltaic bracket.

Description

Friction locking adjusting type photovoltaic bracket

Technical Field

The application relates to the technical field of photovoltaic supports, in particular to a friction locking adjusting type photovoltaic support.

Background

The conventional energy sources are extremely limited around the world, and as the demand increases, the conventional energy sources are in an increasingly depleted state. Solar energy is inexhaustible renewable energy, has the advantages of sufficient cleanliness, sufficient resources, potential economy and the like, and gradually becomes the most important energy source for people. The most common way of today is to obtain solar energy by photovoltaic power generation, the principle of which is by converting the radiant power of the sun into electrical energy, or to be stored in a battery, or to push a load to work. Most of the current market uses solar energy through photovoltaic panels placed on photovoltaic holders. The solar photovoltaic bracket is a special bracket designed for placing, installing and fixing a solar photovoltaic panel in a solar photovoltaic power generation system, and is generally made of aluminum alloy, stainless steel and the like. The photovoltaic bracket products can be divided into a ground bracket system, a plane roof bracket system, an angle-adjustable roof bracket system, an inclined roof bracket system, a stand column bracket system and the like. In the rotating process of the solar module, the solar module can be subjected to angle adjustment according to different region forms by utilizing the unique design structure of the photovoltaic bracket, so that the local solar resource can be fully utilized to achieve the maximum power generation efficiency of the solar module.

In the prior art, the adjustable photovoltaic bracket on the market is mainly connected with the upright post and the main beam by adopting a plurality of push rod arms, or a positioning structure is independently designed to be connected with the main beam so as to realize the adjustment and the fixation of the photovoltaic bracket, however, the structure of the mode is complex, the processing and the installation are difficult, and the adjustment and the maintenance cost is higher.

Based on the defects existing in the prior art, the technical staff in the field aim to create a photovoltaic bracket with simple structure, low cost and high adjustment efficiency.

Disclosure of Invention

The application aims to provide a friction locking adjusting type photovoltaic bracket, which can greatly simplify the structure of the photovoltaic bracket and greatly improve the adjusting efficiency and the adjusting effect of the photovoltaic bracket.

The technical scheme provided by the application is as follows:

a friction locking adjusting type photovoltaic bracket comprises a main beam and at least one upright post; the top end of each upright post is provided with a bearing sleeve, and a bearing which rotates relative to the bearing sleeve is embedded in the bearing sleeve; the main beam is inserted into the bearing so as to axially rotate on the upright post around the upright post; further comprising a friction lock device, said friction lock device comprising:

the power mechanism is assembled on the main beam;

the at least one locking mechanism comprises a first locking piece, a second locking piece and an adjusting rod;

the first locking piece and the second locking piece are respectively and oppositely arranged between the bearing and the bearing sleeve, and are in limit nesting fit with the bearing; the two ends of the adjusting rod are respectively connected with the first locking piece and the second locking piece, and the power mechanism is connected with the adjusting rod;

the adjusting rod is used for enabling the first locking piece and the second locking piece to synchronously move towards each other or back to each other under the driving of the power mechanism; when the first locking piece and the second locking piece synchronously move in opposite directions and are abutted against the bearing sleeve, the bearing is locked in the bearing sleeve so as to fix the main beam; when the first locking piece and the second locking piece synchronously move in opposite directions and are separated from the bearing sleeve, the bearing rotates relative to the bearing sleeve so as to adjust the rotation angle of the main beam.

In the application, the main beam is inserted into the bearing, and the bearing is rotationally connected with the bearing sleeve, so that the main beam can rotate relative to the upright post. The first locking piece and the second locking piece are arranged between the bearing and the bearing sleeve, and the adjusting rod is connected with the first locking piece and the second locking piece. Therefore, under the drive of the power mechanism, the adjusting rod can move forward or backward, so that the first locking piece and the second locking piece synchronously move towards or away from each other, namely, the distance between the first locking piece and the second locking piece can be close to or far from each other. When the first locking piece and the second locking piece are far away from each other and are all abutted against the inner wall of the bearing sleeve, larger friction force is generated among the first locking piece, the second locking piece and the bearing sleeve, so that the bearing and the bearing sleeve are in a locking state, and the photovoltaic bracket is locked at the angle. When the first locking piece and the second locking piece are close to each other and are slowly separated from the bearing sleeve, the friction force is slowly reduced or even eliminated, so that the bearing can continue to rotate relative to the bearing sleeve, and the angle of the photovoltaic bracket can continue to be adjustable. The application can greatly simplify the structure of the photovoltaic bracket and greatly improve the adjusting efficiency and the adjusting effect of the photovoltaic bracket.

Further preferably, the bearing is split, and the bearing comprises a first bearing and a second bearing;

a preset distance is reserved between the first bearing and the second bearing;

the outer circumferential surface of the first bearing is provided with a first axial groove for accommodating the first locking piece;

the outer circumferential surface of the second bearing is provided with a second axial groove for accommodating the second locking piece; and a first mounting groove is formed in the end face, facing the second bearing, of the first bearing;

the end face of the second bearing, facing the first bearing, is provided with a second mounting groove;

the first mounting groove and the second mounting groove jointly form a girder jack for the girder to be inserted.

Further preferably, two ends of the first axial groove form a first limit concave part respectively, two ends of the first locking piece form a first limit convex part which is nested and matched with the first limit concave part respectively, and two end faces of the first limit convex part, which face the second bearing, are provided with a first threaded hole respectively; a kind of electronic device with high-pressure air-conditioning system

Two ends of the second axial groove are respectively provided with a second limit concave part, two ends of the second locking piece are respectively provided with a second limit convex part which is nested and matched with the second limit concave part, and two end faces of the second limit convex parts, which face the first bearing, are respectively provided with a second threaded hole; a kind of electronic device with high-pressure air-conditioning system

The adjusting rod comprises two threaded supporting rods, threads are arranged at two ends of each threaded supporting rod, and the rotation directions of the threads are opposite;

the first threaded hole and the second threaded hole which are positioned on the same side are correspondingly arranged;

two ends of one of the threaded struts are respectively in threaded connection with the first threaded hole and the second threaded hole on one side, and two ends of the other threaded strut are respectively in threaded connection with the first threaded hole and the second threaded hole on the other side; a kind of electronic device with high-pressure air-conditioning system

The two threaded struts are in butt joint with the power mechanism, the power mechanism drives the two threaded struts to rotate, and the two threaded struts further drive the first locking piece and the second locking piece to synchronously move in opposite directions or in opposite directions.

Further preferably, the first locking member is fixed to the first bearing, the second locking member is fixed to the second bearing, and the threaded strut drives the first bearing and the second bearing to move synchronously in opposite directions or back to back.

Further preferably, the power mechanism comprises a driving piece and two transmission racks;

the driving piece is assembled on one side of the main beam, the two transmission racks are respectively arranged on two sides of the main beam, and are connected with the threaded struts on two sides of the main beam in a transmission manner;

the driving piece drives the two driving racks to reciprocate synchronously so as to drive the threaded struts positioned on two sides of the main beam to rotate synchronously forward or reversely.

Further preferably, the driving member includes a hand wheel, a crank shaft, two cranks and two connecting rods; the crank shaft penetrates through the main beam, and the hand wheel disc is arranged at one end of the crank shaft;

the two cranks are respectively arranged at two sides of the main beam and are respectively hinged at two ends of the crank shaft;

the two connecting rods are respectively arranged at two sides of the main beam and are respectively hinged with the free ends of the two cranks;

the free ends of the two connecting rods are respectively hinged to the two transmission racks;

the hand wheel disc is operable to drive the crank shafts to rotate, so that the two cranks and the two connecting rods are driven to synchronously rotate, and the two transmission racks synchronously reciprocate.

Further preferably, a rack baffle is respectively assembled between the first bearing and the second bearing of each bearing and corresponding to the positions of the two threaded struts, and the rack baffle is provided with a chute for sliding the transmission rack, and the chute enables the transmission rack to have a unique movement posture.

Further preferably, the photovoltaic module further comprises a plurality of purlines which are arranged on the main beam at intervals and used for assembling the photovoltaic module;

each purlin is assembled on the main girder through a fixing mechanism;

the fixing mechanism comprises a fixing strip and two inclined stays;

the two inclined stays are respectively butted at the two ends of the fixing strip;

the fixing strip is abutted against the bottom wall of the main beam, and two ends of the fixing strip are respectively fixed on the purline through bolts; and one ends of the two diagonal braces, which are opposite to the fixing strips, are respectively butted with the ends of the purlines on the same side; and a triangle structure is formed among the diagonal braces, the main beams and the purlines.

Further preferably, the end surfaces of the first locking piece and the second locking piece, which are used for abutting against the bearing sleeve, are rough surfaces;

and/or the edges of the two end surfaces of the bearing are provided with outward turned annular edges which are used for abutting the two end surfaces of the bearing sleeve;

and/or the bearing sleeve is split, and comprises a first bearing sleeve and a second bearing sleeve; the first bearing sleeve and the second bearing sleeve are fixedly connected through bolts.

Further preferably, the device further comprises at least one rotation driving device;

the rotary driving device comprises an adjusting piece and a supporting arm;

the adjusting piece is arranged on the upright post;

the supporting arm is rigidly connected to the main beam and is in butt joint with the adjusting piece;

the adjusting piece is used for driving the supporting arm to move, and the supporting arm further drives the main beam to rotate relative to the upright post.

The application has the technical effects that:

Drawings

The application is described in further detail below with reference to the attached drawings and detailed description:

FIG. 1 is a schematic structural view of a photovoltaic module of the product of the present application;

fig. 2 is an enlarged view of a partial area a shown in fig. 1;

FIG. 3 is a schematic illustration of the power mechanism of the friction lock device of FIG. 2;

FIG. 4 is a schematic view of the structure of the bearing housing, bearing and friction locking device of the product of the present application;

FIG. 5 is a schematic view of the locking mechanism of the friction locking device shown in FIG. 4 assembled to a bearing;

FIG. 6 is a schematic view of the locking mechanism shown in FIG. 5;

FIG. 7 is a schematic view of the threaded strut and drive rack of FIG. 6;

FIG. 8 is a schematic view of the first and second locking members of FIG. 6 in a state;

fig. 9 is a schematic view of the first locking member and the second locking member shown in fig. 6 in another state;

FIG. 10 is a schematic view of the structure of the bearing shown in FIG. 5;

fig. 11 is a schematic view of the purlin of fig. 1 mounted to a main beam.

Reference numerals illustrate:

a photovoltaic support 1; a main beam 10; a column 20; a bearing housing 21; a first bearing housing 211; a second bearing sleeve 212; a bearing 22; a first bearing 221; a first axial groove 2211; first limit recess 22111; a first mounting groove 2212; an everting annular edge 2213; a second bearing 222; a second axial groove 2221; a second limit recess 22211; a second mounting groove 2222; purlins 30; a fixing mechanism 31; a fixing bar 311; diagonal brace 312; a friction lock 40; a power mechanism 41; a driving member 411; a handwheel disc 4111; crank shaft 4112; crank 4113; a connecting rod 4114; a drive rack 412; rack bars 4121; a rack bar 413; a chute 4131; a locking mechanism 42; a first locking member 421; a first limit protrusion 4211; a first threaded hole 4212; a second lock 422; a second limit protrusion 4221; a second threaded hole 4222; a threaded strut 423; annular insection 4231; a rotation driving device 50; an adjusting member 51; a fixing plate 511; driving the push rod 512; a support arm 52; a fixing piece 521; and a collar 522.

Detailed Description

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

For the sake of simplicity of the drawing, the parts relevant to the present application are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

According to an embodiment of the present application, as shown in fig. 1 to 6, a friction locking adjustment type photovoltaic bracket 1 includes a main beam 10 and at least one upright 20. The top end of each upright post 20 is provided with a bearing sleeve 21, and the bearing sleeve 21 is embedded with a bearing 22 which rotates relative to the bearing sleeve. The main beam 10 is inserted into the bearing 22 to rotate on the upright 20 about its axis. Also included is a friction lock 40. The friction lock 40 includes a power mechanism 41 and at least one lock mechanism 42 that are assembled to the main beam 10. The locking mechanism 42 includes a first locking piece 421, a second locking piece 422, and an adjustment lever. The first locking piece 421 and the second locking piece 422 are respectively and oppositely arranged between the bearing 22 and the bearing sleeve 21, and are in limit nesting fit with the bearing 22. Both ends of the adjustment lever are connected to the first locking piece 421 and the second locking piece 422, respectively, and the power mechanism 41 is connected to the adjustment lever. Wherein, under the drive of the power mechanism 41, the adjusting lever is used for making the first locking piece 421 and the second locking piece 422 move towards or away from each other synchronously. When the first locking member 421 and the second locking member 422 move synchronously and are in contact with the bearing housing 21, the bearing 22 is locked in the bearing housing 21 to fix the main beam 10. When the first locking member 421 and the second locking member 422 move in opposite directions in synchronization and are disengaged from the bearing housing 21, the bearing 22 rotates relative to the bearing housing 21 to adjust the rotation angle of the main beam 10.

In this embodiment, the main beam 10 is inserted into the bearing 22, and the bearing 22 is rotatably connected to the bearing housing 21, so that the main beam 10 can rotate relative to the upright post 20. The first locking piece 421 and the second locking piece 422 are provided between the bearing 22 and the bearing housing 21, and the adjusting lever is connected to the first locking piece 421 and the second locking piece 422. Thus, under the driving of the power mechanism 41, the adjusting rod can move forward or backward, so that the first locking piece 421 and the second locking piece 422 can move synchronously towards or away from each other, that is, the distance between the two pieces can be close to or far from each other. When the first locking piece 421 and the second locking piece 422 are far away from each other and all abut against the inner wall of the bearing housing 21, a large friction force is generated between the first locking piece 421, the second locking piece 422 and the bearing housing 21, so that the bearing 22 and the bearing housing 21 are in a locked state, and the photovoltaic bracket 1 is locked at the angle. When the first locking member 421 and the second locking member 422 approach each other and gradually separate from the bearing housing 21, the friction force gradually decreases or even disappears, so that the bearing 22 can continue to rotate relative to the bearing housing 21, and the angle of the photovoltaic bracket 1 can continue to be adjustable. The application can greatly simplify the structure of the photovoltaic bracket 1 and greatly improve the adjusting efficiency and the adjusting effect of the photovoltaic bracket 1.

Further, in this embodiment, referring to fig. 1, the photovoltaic bracket 1 further includes a plurality of purlines 30 spaced on the main beam 10 for assembling the photovoltaic module. Each purlin 30 is assembled to the main beam 10 by a securing mechanism 31. As a preferred example of the present embodiment, referring to fig. 11, the fixing mechanism 31 may include a fixing bar 311 and two diagonal braces 312. The fixing strip 311 is abutted against the bottom wall of the main beam 10, and two ends of the fixing strip 311 are respectively fixed on the purline 30 through a bolt. It should be noted that the transverse cross section of the purline 30 is C-shaped and made of steel, so that the end portion of the bolt can be received in the purline 30, and the upper surface of the purline 30 is in a smooth and flat state, so that the photovoltaic module can be assembled better. Wherein, two bolts are respectively attached to two side walls of the main beam 10, so that the fixing strips 311, the main beam 10 and the purlines 30 are tightly abutted, and the stability effect on the purlines 30 is better.

To further enhance the stability of the purline 30 mounted on the main beam 10, two diagonal braces 312 are respectively abutted to two ends of the fixing strip 311, and one ends of the two diagonal braces 312 opposite to the fixing strip 311 are respectively abutted to the ends of the purline 30 on the same side. The inclined stay 312, the main beam 10 and the purlines 30 form a stable triangle structure, so that the stability effect of the photovoltaic module is greatly improved when the photovoltaic bracket 1 is used. Preferably, the fixing strip 311 and the two diagonal braces 312 are integrally designed to improve the stability of the overall structure. Of course, the fixing strip 311 and the two diagonal braces 312 may be detachably and separately designed, which are all within the protection scope of the present application, and will not be described herein.

Further, in this embodiment, referring to fig. 1, the upright post 20 is vertically disposed and used for installing the main beam 10, so as to support and fix the main beam 10, the purline 30 and the photovoltaic module. The number of the columns 20 may be one or more, and when the number of the columns 20 is plural, the columns 20 may be spaced apart along the length direction of the girder 10, but is not limited thereto. The specific selection number of the upright posts 20 can be flexibly set according to the topography or climate of the actual application scene, and the dimensions of the upright posts 20 can be flexibly matched according to the topography, and are not limited to a certain fixed dimension model. As shown in fig. 1, the number of the columns 20 provided in the present embodiment is three, and the three columns 20 are commonly used for carrying the main beams 10, but not limited thereto.

In this embodiment, referring to fig. 1, the main beam 10 is provided on the upright 20 to rotate on the upright 20 about its own axis. Referring to fig. 2, a bearing sleeve 21 is disposed at the top end of each upright 20, a bearing 22 rotating relative to the bearing sleeve 21 is embedded in the bearing sleeve 21, and the main beam 10 is inserted into the bearing 22 to rotate on the upright 20 around its own axis. Preferably, the bearing sleeve 21 is made of metal material and can be integrally formed at the top end of the upright post 20, so as to improve the stability of the butt joint of the two. Of course, the bearing sleeve 21 may be fixed to the top end of the upright post 20 by welding or bolting, which is within the scope of the present application.

Further, referring to fig. 4, the bearing housing 21 may have a ring-like structure to accommodate the configuration of the bearing 22 embedded therein. And the bearing sleeve 21 is split, so that the bearing 22 can be conveniently installed and detached. Specifically, the bearing housing 21 may include a first bearing housing 211 and a second bearing housing 212, and the first bearing housing 211 and the second bearing housing 212 are fixed by bolting. Wherein the second bearing housing 212 is disposed at the top end of the upright 20.

In this embodiment, referring to fig. 2, the photovoltaic bracket 1 further includes at least one rotation driving device 50. The rotary driving device 50 may include an adjusting member 51 and a supporting arm 52. The adjusting member 51 is disposed on the upright 20, and the support arm 52 is rigidly connected to the main beam 10 and is abutted to the adjusting member 51. The adjusting piece 51 is used for driving the supporting arm 52 to move, the supporting arm 52 further drives the main beam 10 to rotate relative to the upright 20, and the adjusting piece 51 and the supporting arm 52 are arranged in an inclined manner. Preferably, in the present embodiment, the number of the rotation driving devices 50 is only one and is disposed at one side of the main beam 10, so that the cost can be greatly saved and the rotation driving effect on the main beam 10 can be achieved, but the present application is not limited thereto. As a preferred example of the present embodiment, the adjusting member 51 may include a fixing plate 511 and a driving push rod 512. The fixing plate 511 is fixed to the upright post 20 for fixing the driving push rod 512, and the specific profile and structure of the fixing plate 511 are not limited, and may be set in any shape according to the actual use requirement. It should be noted that the driving rod 512 may be a cylinder, the driving end of the cylinder is abutted to the supporting arm 52, and the cylinder drives the supporting arm 52 to move during the extending and retracting process, so that the main beam 10 rotates relative to the upright 20, but is not limited thereto. Further, a fixing piece 521 is rigidly connected to the end of the support arm 52 opposite to the cylinder, and a clip 522 is detachably mounted on the fixing piece 521. The support arm 52 may be rigidly connected to the main beam 10 by a securing tab 521 and a clip 522. It should be noted that the locking space defined by the fixing piece 521 and the collar 522 is adapted to the transverse cross-sectional profile of the main beam 10, so that the support arm 52 can be firmly and rigidly abutted with the main beam 10.

In this embodiment, based on the fact that the actual application scenario of the photovoltaic bracket 1 is basically outdoor, the photovoltaic bracket 1 can directly contact the external complex climate environment, therefore, the bearing 22 can be preferably made of plastic materials, rust of the bearing 22 after long-term use can be prevented, and the plastic materials are beneficial to saving cost and reducing the bearing of the bracket, so that the actual use experience of the photovoltaic bracket 1 is greatly improved.

Further, in the present embodiment, referring to fig. 10, the bearing 22 may be of a split design, and the bearing 22 may include a first bearing 221 and a second bearing 222 with a predetermined distance between the first bearing 221 and the second bearing 222. The end surface of the first bearing 221 facing the second bearing 222 is provided with a first mounting groove 2212, the end surface of the second bearing 222 facing the first bearing 221 is provided with a second mounting groove 2222, and the first mounting groove 2212 and the second mounting groove 2222 together form a main beam 10 jack for inserting the main beam 10. It should be noted that, based on the square transverse cross section of the main beam 10, the insertion holes of the main beam 10 may be square holes, which greatly reduces the probability of slipping between the bearings 22 and the main beam 10 during rotation.

Further, in the present embodiment, referring to fig. 8 to 10, the outer circumferential surface of the first bearing 221 is provided with a first axial groove 2211 for accommodating the first locking member 421 and fitting the contour of the first locking member 421, and the outer circumferential surface of the second bearing 222 is provided with a second axial groove 2221 for accommodating the second locking member 422 and fitting the contour of the second locking member 422. Wherein, a first limiting concave portion 22111 is formed at two ends of the first axial groove 2211, and a first limiting convex portion 4211 nested with the first limiting concave portion 22111 is formed at two ends of the first locking member 421, and a first threaded hole 4212 is formed on an end surface of the two first limiting convex portions 4211 facing the second bearing 222. Correspondingly, two ends of the second axial groove 2221 respectively form a second limiting concave portion 22211, two ends of the second locking piece 422 respectively form a second limiting convex portion 4221 in nested fit with the second limiting concave portion 22211, and two end faces of the second limiting convex portions 4221 facing the first bearing 221 are respectively provided with a second threaded hole 4222.

Further, in this embodiment, referring to fig. 4 to 7, the adjusting rod may include two threaded struts 423, and both ends of the threaded struts 423 are provided with threads, and the threads of both ends are opposite in rotation direction. The first threaded hole 4212 and the second threaded hole 4222 located on the same side are correspondingly arranged, wherein two ends of one threaded strut 423 are respectively in threaded connection with the first threaded hole 4212 and the second threaded hole 4222 on one side, and two ends of the other threaded strut 423 are respectively in threaded connection with the first threaded hole 4212 and the second threaded hole 4222 on the other side. Further, the two threaded struts 423 are both abutted to the power mechanism 41, the power mechanism 41 drives the two threaded struts 423 to rotate, and the two threaded struts 423 further drive the first locking piece 421 and the second locking piece 422 to synchronously move towards or away from each other so as to adjust and lock the angle of the photovoltaic bracket 1. It should be noted that, in the present embodiment, since each bearing 22 corresponds to two threaded struts 423, and the two threaded struts 423 are located on two sides of the main beam 10, the number of the columns 20 according to the present embodiment is three, and therefore, the number of the threaded struts 423 is six, and the two sides of the main beam 10 are provided with three threaded struts 423 corresponding to three columns 20.

Further, in the present embodiment, referring to fig. 2 to 7, the power mechanism 41 may include a driving member 411 and two driving racks 412. Specifically, the driving member 411 is assembled on one side of the main beam 10, and the two driving racks 412 are respectively disposed on two sides of the main beam 10 and are connected to the threaded struts 423 disposed on two sides of the main beam 10. Wherein, the threaded strut 423 is provided with an annular tooth 4231, the position of the driving rack 412 corresponding to the annular tooth 4231 of the threaded strut 423 is provided with an adaptive rack 4121, and the driving member 411 drives the two driving racks 412 to reciprocate synchronously, so as to drive the threaded struts 423 located at two sides of the main beam 10 to rotate synchronously in the forward direction or the reverse direction. It should be noted that the driving rack 412 may be an integral strip design, or may be formed by splicing multiple sections of short strips end to end, which is within the scope of the present application. In this embodiment, since the two sides of the main beam 10 are respectively provided with three threaded struts 423, each of the driving racks 412 is provided with three sections of rack patterns 4121, and the three sections of rack patterns are arranged corresponding to the annular patterns 4231 of the three threaded struts 423.

Further, in the present embodiment, referring to fig. 2 and 3, the driving member 411 may include a hand wheel 4111, a crank shaft 4112, two cranks 4113 and two connecting rods 4114. Specifically, the crank shaft 4112 is threaded through the main beam 10, and the handwheel rim 4111 is mounted to one end of the crank shaft 4112. Two cranks 4113 are provided on both sides of the main beam 10 and are hinged to both ends of the crank shaft 4112, respectively. The two connecting rods 4114 are respectively disposed at two sides of the main beam 10 and are respectively hinged to the free ends of the two cranks 4113. The free ends of the two connecting rods 4114 are respectively hinged to the two driving racks 412. Wherein the handwheel plate 4111 is operable to drive the crankshaft 4112 to rotate, thereby synchronously rotating the two cranks 4113 and the two connecting rods 4114 to move the two drive racks 412 back and forth. Of course, in other embodiments, the driving member 411 may be any other member for driving the two driving racks 412 to make synchronous reciprocating motion, and is not limited thereto.

Another embodiment may be: the first locking member 421 is fixed to the first bearing 221, and the second locking member 422 is fixed to the second bearing 222, and the movement in opposite and opposite directions is synchronized in an integrated manner, thereby restricting the rotation of the main beam 10.

In this embodiment, the two driving racks 412 are driven to synchronously reciprocate by manual operation or mechanical operation of the hand wheel disk 4111 to drive the threaded struts 423 located at two sides of the main beam 10 to synchronously rotate forward or backward, so that the first locking member 421 and the second locking member 422 synchronously move toward or away from each other, i.e. the distance between the two members can be close to or far from each other. When the first locking piece 421 and the second locking piece 422 are far away from each other and all abut against the inner wall of the bearing housing 21, a large friction force is generated between the first locking piece 421, the second locking piece 422 and the bearing housing 21, so that the bearing 22 and the bearing housing 21 are in a locked state, and the photovoltaic bracket 1 is locked at the angle. When the first locking member 421 and the second locking member 422 approach each other and gradually separate from the bearing housing 21, the friction force gradually decreases or even disappears, so that the bearing 22 can continue to rotate relative to the bearing housing 21, and the angle of the photovoltaic bracket 1 can continue to be adjustable. The technical scheme has simple structure, can greatly simplify the structure of the photovoltaic bracket 1, and can greatly improve the adjusting efficiency and the adjusting effect of the photovoltaic bracket 1. In the present embodiment, the end surfaces of the first locking member 421 and the second locking member 422 for abutting against the bearing housing 21 are rough surfaces, so that the friction force can be increased, and the locking effect can be further improved.

Further, in the present embodiment, referring to fig. 4 and 5, a rack bar 413 is assembled between the first bearing 221 and the second bearing 222 of each bearing 22 and corresponding to the positions of the two threaded struts 423, the rack bar 413 is provided with a sliding groove 4131 for sliding the driving rack 412, and the sliding groove 4131 makes the driving rack 412 have a unique movement posture, so as to prevent the driving rack 412 from moving during movement. In the present embodiment, there may be no limitation on the specific contour of the rack bar 413. And, preferably, the rack bar 413 may be fixed to an end surface of the second bearing 222 toward the first bearing 221 by a screw, but is not limited thereto.

Further, in the present embodiment, referring to fig. 4 and 5, the edges of the two end surfaces of the bearing 22 are provided with turned-out annular edges 2213 for abutting against the two end surfaces of the bearing housing 21, so that the bearing 22 will not play along the axial direction thereof, and the bearing 22 can rotate more smoothly relative to the bearing housing 21.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims

1. A friction locking adjusting type photovoltaic bracket comprises a main beam and at least one upright post; the top end of each upright post is provided with a bearing sleeve, and a bearing which rotates relative to the bearing sleeve is embedded in the bearing sleeve; the main beam is inserted into the bearing so as to axially rotate on the upright post around the upright post; the friction locking device is characterized by further comprising a friction locking device, wherein the friction locking device comprises:

the power mechanism is assembled on the main beam;

the adjusting rod is used for enabling the first locking piece and the second locking piece to synchronously move towards each other or back to each other under the driving of the power mechanism; when the first locking piece and the second locking piece synchronously move in opposite directions and are abutted against the bearing sleeve, the bearing is locked in the bearing sleeve so as to fix the main beam; when the first locking piece and the second locking piece synchronously move in opposite directions and are separated from the bearing sleeve, the bearing rotates relative to the bearing sleeve so as to adjust the rotation angle of the main beam;

two ends of the first locking piece are respectively provided with a first threaded hole; two ends of the second locking piece are respectively provided with a second threaded hole; the adjusting rod comprises two threaded supporting rods, threads are arranged at two ends of each threaded supporting rod, and the threads are opposite in rotation direction;

2. The friction lock adjustment photovoltaic bracket of claim 1, wherein the bearing is split, the bearing comprising a first bearing and a second bearing;

a preset distance is reserved between the first bearing and the second bearing;

the outer circumferential surface of the second bearing is provided with a second axial groove for accommodating the second locking piece;

and a first mounting groove is formed in the end face, facing the second bearing, of the first bearing;

3. The friction lock-adjusted photovoltaic bracket according to claim 2, wherein,

two ends of the first axial groove are respectively provided with a first limit concave part, two ends of the first locking piece are respectively provided with a first limit convex part which is nested and matched with the first limit concave part, and the end faces of the two first limit convex parts facing the second bearing are respectively provided with a first threaded hole; a kind of electronic device with high-pressure air-conditioning system

Two ends of the second axial groove are respectively provided with a second limit concave part, two ends of the second locking piece are respectively provided with a second limit convex part which is nested and matched with the second limit concave part, and two end faces of the second limit convex parts, which face the first bearing, are respectively provided with a second threaded hole;

the first threaded holes and the second threaded holes which are positioned on the same side are correspondingly arranged.

4. A friction lock-adjusted photovoltaic bracket according to claim 3, characterized in that,

the first locking piece is fixed on the first bearing, the second locking piece is fixed on the second bearing, and the threaded support rod drives the first bearing and the second bearing to synchronously move towards or away from each other.

5. A friction lock adjustment photovoltaic bracket according to claim 3, wherein the power mechanism comprises a drive member and two drive racks;

the driving piece is assembled on one side of the main beam, the two transmission racks are respectively arranged on two opposite sides of the main beam, and are connected with the threaded struts on two sides of the main beam in a transmission manner;

6. The friction lock adjustment photovoltaic bracket of claim 5, wherein the drive member comprises a hand wheel, a crank shaft, two cranks, and two connecting rods;

the crank shaft penetrates through the main beam, and the hand wheel disc is arranged at one end of the crank shaft;

7. The friction lock-adjusted photovoltaic bracket of claim 5, wherein,

and a rack baffle is respectively assembled between the first bearing and the second bearing of each bearing and corresponds to the positions of the two threaded struts, the rack baffle is provided with a chute for the sliding of the transmission rack, and the chute enables the transmission rack to have a unique movement posture.

8. The friction lock adjustment photovoltaic bracket according to any of claims 1-7, further comprising a plurality of purlines spaced on the main beam for assembling a photovoltaic module;

each purlin is assembled on the main girder through a fixing mechanism;

the fixing mechanism comprises a fixing strip and two inclined stays;

9. The friction locking adjustment photovoltaic bracket according to any one of claims 1-7, wherein the end surfaces of the first and second locking members for abutting the bearing housing are roughened surfaces;

10. The friction locking adjustment photovoltaic bracket according to any of claims 1-7, further comprising at least one rotational drive;

the rotary driving device comprises an adjusting piece and a supporting arm;

the adjusting piece is arranged on the upright post;