Photovoltaic pile foundation

Abstract

A photovoltaic pile foundation comprises an upper plate, a plurality of connecting screws are arranged on the upper plate in a penetrating mode, the lower ends of the connecting screws are sleeved with a lower disc, the upper ends of the connecting screws are provided with pressing nuts, the lower side of the lower disc is provided with an installation ring, the lower ends of the connecting screws are arranged on the installation ring in a penetrating mode, the lower ends of the connecting screws are provided with lower end caps, and the upper ends of the lower end caps act on the lower side of the installation ring. A tube body is arranged on the mounting ring, a conical head is formed at the lower end of the tube body, and the lower end of the conical head is a tip. The pipe body and the conical head are formed in an involution welding mode, during machining, the pipe body and the conical head are machined firstly, then trisection cutting is conducted on the pipe body and the conical head in the axial direction, and involution is conducted again in a welding mode after internal parts are fixedly installed.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic support technical field especially relates to a photovoltaic pile foundation. BACKGROUND

[0002] The photovoltaic pile foundation is a fixed component for the installation of the photovoltaic support, which is sunk into the ground below. The conventional photovoltaic pile foundation is fixed on the ground by hitting, or is fixed on the ground by pouring concrete, and the selection of the photovoltaic pile foundation is made according to the construction environment. The currently used photovoltaic pile foundation sunk into the ground by hitting includes a pipe, and a sharp end is formed at the lower end of the pipe. Although this structure is convenient for sinking into the ground, the stability after fixing is poor, which affects the stability of the photovoltaic support installed thereon. Of course, in the specific application, a foundation pit can be dug at the predetermined location first, and then the photovoltaic pile foundation is directly placed in the foundation pit. This construction scheme is selected when the soil is hard and cannot be hit. SUMMARY

[0003] The utility model provides a photovoltaic pile foundation to solve the insufficient of prior art, solve the stability of the existing photovoltaic pile foundation after sinking is poor, has strong practicality.

[0004] In order to realize the purpose of the utility model, the following technologies are adopted:

[0005] A photovoltaic pile foundation, comprising an upper plate, a plurality of connecting screws are provided on the upper plate, a lower disc is provided on the lower end of the connecting screw, a compression nut is provided on the upper end of the connecting screw, an installation ring is provided on the lower side of the lower disc, the lower end of the connecting screw is provided on the installation ring, a lower end cap is provided on the lower end of the connecting screw, the upper end of the lower end cap acts on the lower side of the installation ring, a pipe body is provided on the installation ring, a tapered head is formed on the lower end of the pipe body, and the lower end of the tapered head is a sharp end. And the pipe body and the tapered head are formed by butt welding, the pipe body and the tapered head are machined first, then they are cut into three equal parts along the axial direction, and then they are welded again after the internal parts are fixed and installed.

[0006] A plurality of bosses are provided on the outer periphery of the pipe body, the bosses are arranged along the axial direction of the pipe body, the bosses at the same pipe body height are arranged in a circular array, a rotating hole is formed in the boss, a support rod is arranged in the rotating hole, a support plate is provided on the support rod, a waist-shaped hole is formed in the support plate, the support rod is provided in the waist-shaped hole, the support rod is provided in the rotating hole, and a hinge shaft is arranged on the inner side of the support rod. When hitting and sinking, the support plate is in an upwardly inclined posture, which is convenient for construction.

[0007] The inner lower end of the pipe body is provided with a lower limiting disc, the lower limiting disc is provided with an inner screw rod rotatingly, the lower end of the inner screw rod is provided with a pair of limiting rings, the limiting rings are located on the upper and lower sides of the lower limiting disc, a plurality of wire sleeves are arranged on the inner screw rod along the axial direction, a plurality of pairs of connecting tabs are arranged on the outer periphery of the wire sleeves, a hinge shaft is arranged on the outer side end of the connecting tab, the upper end of the inner screw rod penetrates the lower disc, the upper end of the inner screw rod is provided with a rotating head, when the pipe body is sunk into the ground, the inner screw rod is rotated through the rotating head, the wire sleeve on the inner screw rod is moved upwards during rotation, and then the outer side end of the supporting plate is rotated downwards, so that the supporting plate is penetrated, and the stability after fixing is improved.

[0008] Further, the outer wall of the conical head is provided with a plurality of spiral pieces, which can be fed by rotating to improve the efficiency of sinking into the ground when hitting.

[0009] Further, the lower end of the boss is a conical arc surface, and the lower end of the conical arc surface is a small end, which can reduce the resistance when sinking into the ground.

[0010] Further, the limiting ring is connected to the lower end of the inner screw rod through threads or connecting pins, and the limiting ring limits the lower end of the screw rod.

[0011] Further, the outer side end of the supporting rod is in a wedge structure, and the lower wall is in a blade structure to reduce the resistance when hitting, and more preferably, the supporting rod can be processed in a V-shaped structure, the outer side end of the supporting plate is in a vertical state when hitting, and the limiting effect is improved by rotating after hitting.

[0012] Further, the inner wall of the pipe body is provided with a plurality of vertical strips, the outer periphery of the wire sleeve is provided with a plurality of clamping pieces, the outer side end of the clamping piece is provided with a groove, the vertical strip is arranged in the groove, the vertical strip guides the movement of the wire sleeve, and the vertical strip strengthens the structure of the pipe body.

[0013] Further, the lower end of the vertical strip is provided with a lower extension inserting rod, the lower extension inserting rod is arranged on the lower limiting disc, and the lower limiting disc is located at the lower end of the vertical strip, so as to position the lower limiting disc.

[0014] The above technical scheme has the following advantages:

[0015] The utility model discloses convenient for the operation of photovoltaic pile foundation sinking, and can improve safety and stability after sinking. ACCURATE DRAWINGS

[0016] In order to make the purpose, technical scheme and advantage of the utility model more clear, the utility model will be described in further detail below with the drawings.

[0017] Figure 1 The three-dimensional structure of one of the embodiments is shown Figure 1 .

[0018] Figure 2 A perspective view of the pipe body is shown.

[0019] Figure 3 A perspective view of one embodiment is shown Figure 2 .

[0020] Figure 4 An enlarged view of A is shown. DETAILED DESCRIPTION

[0021] As Figures 1-4 shown, a photovoltaic pile foundation comprises an upper plate 1, a plurality of connecting screw rods 2 are arranged on the upper plate 1, a lower disc 21 is arranged on the lower end of the connecting screw rod 2, a compression nut 20 is arranged on the upper end of the connecting screw rod 2, an installation ring 3 is arranged on the lower side of the lower disc 21, the lower end of the connecting screw rod 2 is arranged on the installation ring 3, a lower end cap is arranged on the lower end of the connecting screw rod 2, the upper end of the lower end cap acts on the lower side of the installation ring 3, a pipe body 30 is arranged on the installation ring 3, a tapered head 31 is formed on the lower end of the pipe body 30, the lower end of the tapered head 31 is a pointed end, and a plurality of spiral fins 32 are arranged on the outer wall of the tapered head 31.

[0022] A plurality of bosses 33 are arranged on the outer periphery of the pipe body 30, the lower end of the boss 33 is a conical arc surface, the lower end of the conical arc surface is a small end, the bosses 33 are arranged in an axial array along the pipe body 30, the bosses 33 at the same height of the pipe body 30 are arranged in a circumferential array, a rotating hole 34 is arranged on the boss 33, a support rod 47 is arranged in the rotating hole 34, the outer side end of the support rod 47 is in a wedge-shaped structure, a support plate 43 is arranged on the support rod 47, a waist-shaped hole 44 is arranged on the support plate 43, the support rod 47 is arranged in the waist-shaped hole 44, the support rod 47 is arranged in the rotating hole 34, and the inner side end of the support rod 47 is provided with a hinge shaft 42.

[0023] A lower limiting disc 37 is arranged at the inner lower end of the pipe body 30, an inner screw rod 38 is rotatably arranged on the lower limiting disc 37, a pair of limiting rings 39 are arranged at the lower end of the inner screw rod 38, the limiting rings 39 are connected to the lower end of the inner screw rod 38 by threads or connecting pins, the limiting rings 39 are located on the upper and lower sides of the lower limiting disc 37, a plurality of silk sleeves 40 are arranged in an axial array along the inner screw rod 38, a plurality of pairs of connecting flanges 41 are arranged on the outer periphery of the silk sleeve 40, the hinge shaft 42 is arranged at the outer side end of the connecting flange 41, the upper end of the inner screw rod 38 is arranged out of the lower disc 21, and a rotating head is arranged at the upper end of the inner screw rod 38.

[0024] A plurality of vertical strips 36 are arranged on the inner wall of the pipe body 30, a plurality of clamping pieces 45 are arranged on the outer periphery of the silk sleeve 40, a groove 46 is arranged on the outer side end of the clamping piece 45, the vertical strip 36 is arranged in the groove 46, and a lower extension inserting rod is arranged at the lower end of the vertical strip 36, the lower extension inserting rod is arranged on the lower limiting disc 37, and the lower limiting disc 37 is located at the lower end of the vertical strip 36.

[0025] One of the specific embodiments is that when the soil is hard, a sinking hole is drilled by the auger drilling device first, and then the photovoltaic pile foundation is sunk, a certain amount of soil is backfilled after sinking, and ramming is performed by ramming.

[0026] Another specific embodiment is that when the soil is soft, the photovoltaic pile foundation can be directly planted by the sinking mode, and the photovoltaic pile foundation can also be spirally sunk below the ground by the rotating and pressing mode.

[0027] Regardless of which specific embodiment is used, the pipe body 30 needs to be located below the ground first, and then the reinforcement is fixed by the support plate 43.

[0028] When the reinforcement is performed by the support plate 43, the operator rotates the inner screw rod 38 by rotating the head, and the wire sleeve 40 on the inner screw rod 38 moves upward along the axial direction with the rotation of the inner screw rod 38, the wire sleeve 40 moves upward, which drives the inner side of the support plate 43 to rotate upward, and the outer side of the support plate 43 rotates downward, and the outer side of the support plate 43 extends into the soil, and the subsequent ramming mode can be used to ensure the firmness.

[0029] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and it is obvious that those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application belong to the scope of the claims of the present application and the equivalent technology, the present application also intends to include these modifications and changes.

Claims

1. A photovoltaic pile foundation, characterized in that, Includes an upper plate (1), on which multiple connecting screws (2) are threaded. A lower plate (21) is fitted at the lower end of the connecting screws (2). A clamping nut (20) is provided at the upper end of the connecting screws (2). An installation ring (3) is provided on the lower side of the lower plate (21). The lower end of the connecting screws (2) is threaded onto the installation ring (3). A lower end cap is provided at the lower end of the connecting screws (2). The upper end of the lower end cap acts on the lower side of the installation ring (3). A tube body (30) is provided on the installation ring (3). A conical head (31) is formed at the lower end of the tube body (30). The lower end of the conical head (31) is a pointed tip. Multiple bosses (33) are provided on the outer periphery of the tube body (30). The bosses (33) are arranged in an array along the axial direction of the tube body (30), and the bosses (33) located at the same height of the tube body (30) are arranged in a circular array. A rotating hole (34) is provided on the boss (33). A support rod (47) is provided in the rotating hole (34). A support plate (43) is sleeved on the support rod (47). A waist-shaped hole (44) is provided on the support plate (43). The support rod (47) passes through the waist-shaped hole (44) and the support rod (47) passes through the rotating hole (34). A hinge shaft (42) is provided on the inner end of the support rod (47). The lower end of the tube body (30) is equipped with a lower limit plate (37), and an inner screw (38) is rotatably mounted on the lower limit plate (37). A pair of limit rings (39) are provided at the lower end of the inner screw (38). The limit rings (39) are located on the upper and lower sides of the lower limit plate (37). The inner screw (38) has multiple thread sleeves (40) arranged along its axial direction. Multiple pairs of connecting convex plates (41) are provided on the outer periphery of the thread sleeves (40). The hinge shaft (42) is located at the outer end of the connecting convex plate (41). The upper end of the inner screw (38) passes through the lower plate (21). A rotating head is provided at the upper end of the inner screw (38).

2. The photovoltaic pile foundation according to claim 1, characterized in that, The outer wall of the conical head (31) is provided with multiple spiral blades (32).

3. The photovoltaic pile foundation according to claim 1, characterized in that, The lower end of the boss (33) is a conical arc surface, and the lower end of the conical arc surface is the small end.

4. The photovoltaic pile foundation according to claim 1, characterized in that, The limiting ring (39) is connected to the lower end of the internal screw (38) by thread or connecting pin.

5. The photovoltaic pile foundation according to claim 1, characterized in that, The outer end of the support rod (47) has a wedge-shaped structure.

6. The photovoltaic pile foundation according to claim 1, characterized in that, The inner wall of the tube body (30) is provided with multiple vertical strips (36), and the outer periphery of the thread sleeve (40) is provided with multiple clips (45). The outer end of the clip (45) is provided with a groove (46), and the vertical strips (36) are inserted into the groove (46).

7. The photovoltaic pile foundation according to claim 6, characterized in that, The lower end of the vertical bar (36) is provided with a downward extension rod, which is inserted through the lower limit plate (37), which is located at the lower end of the vertical bar (36).

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