1. The prefabrication method of the tubular pile is applied to a photovoltaic bracket and is characterized by comprising the following steps of:

providing a reinforcement cage, wherein the reinforcement cage comprises a plurality of main reinforcements and auxiliary reinforcements which are arranged in a cross mode with the main reinforcements;

fixing at least one connecting piece on the reinforcement cage;

installing the reinforcement cage and the at least one connecting piece into a mold, injecting a filling material into the mold, rotating the mold at a high speed, and manufacturing the tubular pile after molding, wherein the connecting piece is exposed out of the tubular pile.

2. The prefabrication method of the tubular pile according to claim 1, characterized in that: said securing at least one connector to the reinforcement cage comprises:

the three support legs are fixed on the reinforcement cage by arranging the three support legs on the periphery of the connecting piece.

3. The prefabrication method of the tubular pile according to claim 2, characterized in that: said securing said three legs to said reinforcement cage comprises:

firstly, welding two of the support legs on two adjacent main ribs, adjusting the position of the connecting piece, and then welding a third support leg on the auxiliary rib.

4. The prefabrication method of the tubular pile according to claim 1, characterized in that: after the reinforcement cage and the at least one connecting piece are installed in the mold, the method further comprises the following steps

And a fixing piece is arranged at the corresponding position of the outer wall of the mold and the connecting piece, and the fixing piece penetrates through the outer wall of the mold and is connected with the connecting piece.

5. The prefabrication method of the tubular pile according to claim 4, characterized in that: the connecting piece is a nut, the fixing piece is a bolt, and the bolt penetrates through the outer wall of the die and is screwed into the inner hole of the nut.

6. The prefabrication method of the tubular pile according to claim 1, characterized in that: the plurality of main ribs are uniformly distributed on the circumference, the auxiliary ribs are spirally wound on the peripheries of the plurality of main ribs, and the main ribs and the auxiliary ribs are bound or welded and fixed at the crossed positions through steel wires.

7. A photovoltaic support, its characterized in that: the prefabricated tubular pile comprises a plurality of tubular piles manufactured according to the prefabricating method of the tubular pile, stand columns installed on each tubular pile, oblique beams pivotally arranged on each stand column and purlins arranged on the oblique beams, wherein the purlins are used for installing photovoltaic modules.

8. The photovoltaic support of claim 7, wherein: the photovoltaic support further comprises at least one supporting piece connected with the connecting piece, and the supporting piece comprises a connecting portion connected with the connecting piece and a supporting portion vertically arranged on the connecting portion.

9. The photovoltaic support of claim 8, wherein: the two supporting pieces are symmetrically arranged along the center of the tubular pile, and the two upright posts are respectively and correspondingly arranged on the supporting parts; and/or, the photovoltaic support further comprises an inclined strut, one end of the inclined strut is installed on the supporting portion, and the other end of the inclined strut is installed on the purline.

10. The photovoltaic support of claim 8, wherein: the column mouting is in the top of tubular pile, the photovoltaic support still includes the bracing, bracing one end is installed on the supporting part, the other end is installed on the purlin.

Background

Used photovoltaic support in the existing market, its tubular pile is mostly the structure that is equipped with the staple bolt on the outer wall of tubular pile carries out the assembly of stand or other parts, uses the back for a long time, and the stand can produce the displacement with the relative position of tubular pile, and positioning accuracy is relatively poor, and then leads to the poor stability of whole support.

Therefore, there is a need to provide a new method for prefabricating a tube pile and a photovoltaic bracket to solve the above problems.

Disclosure of Invention

The invention aims to provide a tubular pile prefabricating method and a photovoltaic support, which have the advantages of good stability, relative position determination and reliable structure.

In order to achieve the purpose, the invention adopts the following technical scheme: a prefabricating method of a tubular pile applied to a photovoltaic bracket comprises the following steps: providing a reinforcement cage, wherein the reinforcement cage comprises a plurality of main reinforcements and auxiliary reinforcements which are arranged in a cross mode with the main reinforcements; fixing at least one connecting piece on the reinforcement cage; installing the reinforcement cage and the at least one connecting piece into a mold, injecting a filling material into the mold, rotating the mold at a high speed, and manufacturing the tubular pile after molding, wherein the connecting piece is exposed out of the tubular pile.

As a further improvement of the present invention, the fixing of the at least one connecting member to the reinforcement cage comprises: the three support legs are fixed on the reinforcement cage by arranging the three support legs on the periphery of the connecting piece.

As a further improvement of the present invention, the fixing of the three support legs to the reinforcement cage comprises: firstly, welding two of the support legs on two adjacent main ribs, adjusting the position of the connecting piece, and then welding a third support leg on the auxiliary rib.

As a further improvement of the invention, after the reinforcement cage and the at least one connecting piece are installed in the mold, a fixing piece is arranged at a position corresponding to the connecting piece on the outer wall of the mold, and the fixing piece penetrates through the outer wall of the mold and is connected with the connecting piece.

As a further improvement of the invention, the connecting piece is a nut, and the fixing piece is a bolt, and the bolt passes through the outer wall of the die and is screwed into the inner hole of the nut.

As a further improvement scheme of the invention, the plurality of main ribs are uniformly distributed in the circumference, the auxiliary ribs are spirally wound on the peripheries of the plurality of main ribs, and the crossed positions of the main ribs and the auxiliary ribs are bound or welded and fixed through steel wires.

Compared with the prior art, the tubular pile prefabricating method has the advantages that the connecting piece is fixed on the reinforcement cage, and after the tubular pile is formed, the connecting piece is exposed out of the outer surface of the tubular pile. The part that matches with the connecting piece of being convenient for use like this is fixed with the connecting piece to can fix the part on the tubular pile, the prefabrication method is simple, can design the position of connecting piece as required in a flexible way, and adaptability is high, reduce cost, and has higher stability and position accuracy.

The invention also provides a photovoltaic bracket which comprises a plurality of tubular piles manufactured by the tubular pile prefabricating method, stand columns installed on each tubular pile, oblique beams pivotally arranged on each stand column and purlins arranged on the oblique beams, wherein the purlins are used for installing photovoltaic modules.

As a further improvement of the present invention, the photovoltaic support further comprises at least one supporting member connected to the connecting member, and the supporting member comprises a connecting portion connected to the connecting member and a supporting portion vertically disposed on the connecting portion.

As a further improvement scheme of the invention, the two supporting pieces are symmetrically arranged along the center of the tubular pile, and the two upright posts are respectively and correspondingly arranged on the supporting part; and/or, the photovoltaic support further comprises an inclined strut, one end of the inclined strut is installed on the supporting portion, and the other end of the inclined strut is installed on the purline.

As a further improvement scheme of the photovoltaic bracket, the upright post is mounted at the top of the tubular pile, the photovoltaic bracket further comprises an inclined strut, one end of the inclined strut is mounted on the supporting part, and the other end of the inclined strut is mounted on the purline.

Compared with the prior art, after the tubular pile prefabricating method is applied to the photovoltaic support, no anchor ear is additionally arranged to fix the upright post and other parts, so that the cost is reduced, and the tubular pile prefabricating method has high stability and position accuracy.

Drawings

Fig. 1 is a perspective view of a tubular pile of the present invention;

FIG. 2 is a front view of the connection of the tubular pile and the fixing member of the present invention;

fig. 3 is a partial enlarged view of a portion a in fig. 2;

FIG. 4 is a perspective view of a reinforcement cage in the pipe pile of the present invention;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

fig. 6 is a front view of a photovoltaic mount according to a first embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at C;

fig. 8 is a front view of a photovoltaic mount according to a second embodiment of the present invention;

fig. 9 is a partial enlarged view of fig. 8 at D.

100 tubular pile, 1 steel reinforcement cage, 11 main reinforcement, 12 auxiliary reinforcement, 2 connecting piece, 21 first support, 22 second support, 23 third support, 10 end plate, 101 filling material, 3 fixing piece, 200 photovoltaic bracket, 210 upright post, 220 supporting piece, 221 connecting part, 222 supporting part, 230 oblique beam, 240 purlin, 250 oblique brace, 200 photovoltaic bracket, 210 ' upright post component, 211 ' first upright post, 212 ' second upright post, 220 ' supporting piece, 221 ' connecting part, 222 ' supporting part, 230 ' oblique beam, 240 ' purlin, 250 ' oblique brace, 221 first supporting piece, 222 second supporting piece, 223 third supporting piece, 224 fourth supporting piece, 225 first connecting hole, 226 second connecting hole

Detailed Description

Example 1:

referring to fig. 1 to 5, the present application provides a method for prefabricating a tubular pile, where the tubular pile 100 is applied to a photovoltaic support and plays a role in supporting the photovoltaic support. The prefabricating method of the tubular pile comprises the following steps:

a reinforcement cage 1 is provided, the reinforcement cage 1 being cylindrical in shape. Specifically, the reinforcement cage 1 includes a plurality of main reinforcements 11 and a slave reinforcement 12 arranged to intersect the plurality of main reinforcements 11. Each main rib 11 is linear, and a plurality of main ribs 11 are uniformly distributed on the circumference. In the present embodiment, the slave beads 12 are wound around the outer peripheries of the plurality of master beads 11 in a spiral shape, and are fixed by wire bonding or welding at the intersection positions of the master beads 11 and the slave beads 12. The spiral structure of muscle 12 from can save materials, and make steel reinforcement cage 1 integration to can improve steel reinforcement cage 1's intensity. In other embodiments, each slave rib 12 may be perpendicular to the plurality of main ribs 11, and a plurality of slave ribs 12 are spaced in the axial direction of the reinforcement cage 1, so that the whole reinforcement cage 1 is mesh-shaped, and is convenient for being uniformly combined with later-stage fillers.

At least one connecting member 2 is fixed to the reinforcement cage 1, and after the tubular pile 100 is formed, the connecting member 2 is exposed to the outer surface of the tubular pile 100. This facilitates the use of the parts matching with the connecting member 2 to fix with the connecting member 2, thereby enabling the parts to be fixed on the tubular pile 100 without additionally adding a fixing part, reducing the cost, and having high stability.

Specifically, three support legs are provided on the outer periphery of the connector 2, and the three support legs are fixed to the reinforcement cage 1. The three support legs comprise a first support leg 21, a second support leg 22 and a third support leg 23, the first support leg 21 and the second support leg 22 are approximately arranged in central symmetry relative to the connecting piece 2, and the third support leg 23 is located in a circle center obtuse angle center formed by the first support leg 21 and the second support leg 22, so that the first support leg 21, the second support leg 22 and the third support leg 23 are approximately uniformly fixed on the reinforcement cage 1 along the circumference of the connecting piece 2, and a stabilizing effect is achieved. After the connecting piece 2 is fixed on the reinforcement cage 1, the connecting piece 2 is flush with the outer circumferential surface of the reinforcement cage 1 or protrudes out of the outer circumferential surface of the reinforcement cage 1 so as to be matched with a component matched with the connecting piece 2 in the later period. In the present embodiment, the connector 2 is a nut. In other embodiments, the connecting member 2 may also be other structures connected by threads, such as a sleeve structure, a snap structure suitable for a snap, or other existing connecting structures. A plurality of connecting pieces 2 can be arranged in the circumferential direction or the height direction of the reinforcement cage 1 according to the requirement.

Securing the three legs to the reinforcement cage comprises: the first support leg 21 and the second support leg 22 are welded to the two adjacent main ribs 11, and after the position of the connecting member 2, mainly the circumferential position and the height position, is adjusted, the third support leg 23 is welded to the auxiliary rib 12, so that the connecting member 2 is adjusted to a proper position.

After end plates 10 are welded at two ends of a reinforcement cage 1, the reinforcement cage 1 and at least one connecting piece 2 are installed in a mold, filling materials 101 are injected into the mold, the mold is driven to rotate at a high speed, and the filling materials 101 are made into a tubular pile 100 by a centrifugal forming method. After installing steel reinforcement cage 1 and at least one connecting piece 2 in the mould, and before pouring into filler material into the mould, be provided with the mounting 3 that can be connected with connecting piece 2 in the mould outer wall and the corresponding position of connecting piece 2, in this embodiment, connecting piece 2 is the nut, and this mounting is the bolt, and through having seted up the through-hole in the mould outer wall and the corresponding position of connecting piece 2, the bolt passes the through-hole and is connected with connecting piece 2 to block up the hole of connecting piece 2 when avoiding filler material 101 to reinject. In this embodiment, the filler material is cement. The connecting member 2 of the manufactured tubular pile is exposed to the tubular pile 100, that is, after the tubular pile 100 is manufactured, the connecting member 2 can be observed by naked eyes and can be directly connected with the connecting member 2 by the fixing member 3.

The prefabricated process of whole tubular pile does: after the reinforcement cage 1 is bundled and fixed, end plates 10 are welded to both ends of the reinforcement cage 1 for reinforcement. According to the design requirement, at the corresponding circumference position and the height position welded connection spare 2 of steel reinforcement cage 1, fix on steel reinforcement cage 1 through the one end circumference equipartition with three stabilizer blade, weld first stabilizer blade 21, second stabilizer blade 22 on two adjacent main muscle 11 earlier, after adjusting the position of connecting piece 2, mainly after circumference position and height position, weld third stabilizer blade 23 on from muscle 12 again to confirm the position. Preferably, the connecting element 2 is flush with the circumferential surface of the reinforcement cage, so as to prevent the connecting element 2 from changing position due to friction with the wall of the inner cavity of the mould when the reinforcement cage 1 rotates at a later stage in height. And finally, placing the reinforcement cage 1 welded with the connecting piece 2 into a mold, arranging through holes in the outer wall of the mold and corresponding positions of the connecting piece 2, connecting the connecting piece 2 with the fixing piece in a field installation mode, injecting a filling material 101 into the inner cavity of the mold, manufacturing a tubular pile by using a centrifugal forming method, and taking down the fixing piece after the tubular pile is manufactured so that the connecting holes 20 connected with the connecting piece 2 are exposed out of the tubular pile 100. Here the mould is prior art and its structure will not be described in detail. Through fixing connecting piece 2 on steel reinforcement cage 1, after forming tubular pile 100, connecting piece 2 exposes in the surface of tubular pile 100, and the part that so convenient to use matches with connecting piece 2 is fixed with connecting piece 2 for fix the part on tubular pile 100, need not additionally increase the staple bolt, reduce cost, and have higher stability and position accuracy. And the prefabricating method is simple, the position of the connecting piece can be flexibly designed according to the requirement, and the adaptability is high.

Example 2:

referring to fig. 6 to 7, the present application further provides a photovoltaic bracket 200, which includes a plurality of tube piles 100 fabricated by the prefabrication method according to embodiment 1, a vertical post 210 installed on each tube pile 100, at least one supporting member 220 detachably and firmly connected to the tube pile 100, an oblique beam 230 pivotally installed on each vertical post 210, and purlins 240 installed on the oblique beams 230, wherein the purlins 240 are used for installing photovoltaic modules. Specifically, the vertical column 210 is installed on the top of the tubular pile 100, the middle part of each inclined beam 230 is installed on the top of the vertical column 210, the inclined beams 230 are arranged at a certain angle relative to the horizontal plane, and the inclined beams 230 are pivoted to the vertical column 210 by arranging a bolt in the middle part of the inclined beams 230. Purlins 240 are vertically installed on the tops of the oblique beams 230, and a plurality of purlins 240 are arranged at intervals along the extending direction.

The supporting member 220 includes a connecting portion 221 connected to the connecting member 2 and a supporting portion 222 vertically disposed on the connecting portion 221. The connecting part 221 is at least partially attached to the outer wall of the tubular pile 100, and penetrates the connecting part 221 through a bolt 223 and is connected to the connecting member 2. In this embodiment, there are two supporting members 220, and the two supporting members 220 are symmetrically disposed along the center of the tube pile 100. In the present embodiment, the connection part 221 is an arc-shaped plate, and is fixed to the pipe pile 100 by a fastener after being attached to the outer circumferential surface of the pipe pile 100. The support portion 222 is a flat plate vertically disposed on the connection portion 221.

The photovoltaic bracket further comprises a plurality of diagonal braces 250, one diagonal brace 250 is mounted on each supporting member 220, one end of each diagonal brace 250 is connected with the supporting portion 222 through a fastening member, and the other end of each diagonal brace 250 is connected with the diagonal beam 230 through fastening. Through being connected of connecting piece 2 and support piece 220, avoid using the staple bolt cover to establish the outer wall at the tubular pile, have very high stability and position accuracy nature, and can reduction in production cost, shorten installation time.

Example 3:

referring to fig. 8 to 9, the present embodiment provides another photovoltaic support 200 ' including a plurality of tube piles 100 fabricated by the prefabrication method according to embodiment 1, a post assembly 210 ' installed on each tube pile 100, at least one support member 220 detachably and firmly connected to the tube pile 100, an inclined beam 230 ' pivotally installed on each post assembly 210 ', and purlins 240 ' installed on the inclined beams 230 ', the purlins 240 ' being used for installing photovoltaic modules. Specifically, the column assembly 210 ' includes a first column 211 ' and a second column 212 ', and the first column 211 ' and the second column 212 ' are respectively clamped at two sides of the tube pile 100. The middle part of each oblique beam 230 'is arranged on the top of the first upright post 211' and the second upright post 212 'and the oblique beam 230' is at a certain angle relative to the horizontal plane, and the oblique beam 230 'is pivoted to the first upright post 211' and the second upright post 212 'respectively by arranging a bolt at two positions of the oblique beam 230'. A purlin 240 ' is vertically installed on the top of the sloping beam 230 ', and a plurality of purlins 240 ' are arranged at intervals along the extending direction.

The supporting member 220 'includes a connecting portion 221' connected to the connecting member 2 and a supporting portion 222 'vertically disposed on the connecting portion 221'. The connecting part 221 'is at least partially attached to the outer wall of the tube pile 100, penetrates the connecting part 221' by means of bolts, and is connected to the connecting member 2. In the present embodiment, the number of the supporting members 220 'is four, and the four supporting members 220' include a first supporting member 221, a second supporting member 222, a third supporting member 223 and a fourth supporting member 224, wherein the first supporting member 221 and the second supporting member 222 have the same height and are arranged in a central symmetry manner in the central direction of the tube pile 100. The third support member 223 and the fourth support member 224 are higher than the first support member 221 and the second support member 222 in the height direction, and the third support member 223 and the fourth support member 224 are arranged in central symmetry in the circumferential direction of the tube pile 100. The first support 221 and the third support 223 are located at the same circumferential position of the tube pile 100, and the second support 222 and the fourth support 224 are located at the same circumferential position of the tube pile 100. In other embodiments, the heights of the first support 221 and the second support 222 may be different. The third support 223 and the fourth support 224 may also be different in height. In this embodiment, the connection part 221' is an arc-shaped plate, and is attached to the outer circumferential surface of the pipe pile 100 and then fixed to the pipe pile 100 by fasteners. The supporting portion 222 'is a flat plate vertically disposed on the connecting portion 221'.

The support portion 222 of the first support member 221 and the support portion 222 of the second support member 222 are sequentially provided with two connection holes in a direction extending from the inner side of the tube pile to the outer side, and the two connection holes include a first connection hole 225 close to the tube pile 100 and a second connection hole 226 far away from the tube pile 100. The supporting portion 222 of the third support 223 and the supporting portion 222 of the fourth support 224 are respectively provided with a first connection hole 225. The first connection hole 225 of the first support 221 and the first connection hole 225 of the third support 223 are located in the same vertical direction, and the first connection hole 225 of the second support 222 and the first connection hole 225 of the fourth support 224 are located in the same vertical direction.

In the present embodiment, the first support 221 and the third support 223 at the same circumferential position are respectively fastened to the first column 211'. Second support 222 and fourth support 224 at the same circumferential position are respectively fastened to second upright 212'. Specifically, the lower position of the first upright 211 'is connected to the first support 221 through the first connection hole 225 by a fastener, and the upper position of the first upright 211' is connected to the third support 223 through the first connection hole 225 by a fastener. The lower position of the second upright 212 'is connected to the second support 222 through the first connection hole 225 by a fastener, and the upper position of the second upright 212' is connected to the fourth support 224 through the first connection hole 225 by a fastener. The first upright 211 'and the second upright 212' are respectively provided with a plurality of connecting holes in the vertical direction for adjusting the height positions of the first upright 211 'and the second upright 212'.

The photovoltaic bracket further includes a plurality of diagonal braces 250 ', wherein one end of one diagonal brace 250 ' is connected to the supporting portion 222 of the first support member 221 by a fastener, and the other end is connected to the diagonal beam 230 ' by a fastener. One end of the other diagonal brace 250 ' is connected to the supporting portion 222 ' of the second support 222 by a fastener, and the other end is connected to the diagonal beam 230 ' by a fastener. Specifically, the fastener of one of the diagonal braces 250' is coupled to the first support member 221 through the second coupling hole 226. The fastener of the other diagonal brace 250' is coupled to the second support 222 through the second coupling hole 226.

In summary, compared with the prior art, in the method for prefabricating the tubular pile, the connecting piece 2 is fixed on the reinforcement cage 1, and after the tubular pile 100 is formed, the connecting piece 2 is exposed out of the outer surface of the tubular pile 100. Thus, the parts matched with the connecting piece 2 are convenient to use and are fixed with the connecting piece 2, so that the parts can be fixed on the tubular pile 100, the prefabrication method is simple, the position of the connecting piece can be flexibly designed according to requirements, the adaptability is high, the cost is reduced, and the stability and the position accuracy are higher. After the tubular pile prefabricating method is applied to the photovoltaic support, no anchor ear is additionally arranged to fix the stand column and other parts, so that the cost is reduced, and the tubular pile prefabricating method has high stability and position accuracy.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, such as the directional descriptions of "front", "back", "left", "right", "upper", "lower", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical personnel in the technical field can still make modifications or equivalent substitutions on the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.