An adjustable prestressed large-span flexible photovoltaic support

Abstract

The present invention belongs to the technical field of photovoltaic brackets, and in particular relates to an adjustable prestressed large-span flexible photovoltaic bracket, comprising two groups of relatively arranged columns, a bracket and a photovoltaic panel installed between the two groups of columns, a base installed on one side of the bracket, and an adjustment mechanism and a hydraulic mechanism installed on the base, one group of columns is slidably connected to the base, the adjustment mechanism is used to push the two groups of columns closer or farther away, the hydraulic mechanism is triggered by the adjustment mechanism and is used to fix the columns after adjustment, and the connection between the bracket and the columns adopts a hinge connection, and the two groups of columns are brought closer or farther away from each other by arranging the adjustment mechanism on one side, thereby reducing the limitations of the laying of the photovoltaic bracket, and after the adjustment mechanism is adjusted, that is, after the prestress is adjusted, the columns are fixed by the hydraulic mechanism, thereby improving the structural stability of the photovoltaic bracket and ensuring the structural strength.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic brackets, and in particular relates to an adjustable prestressed large-span flexible photovoltaic bracket. Background Art

[0002] Photovoltaics is a form of power generation that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It is a clean, renewable form of energy. Against the backdrop of the global energy crisis and increasingly serious environmental pollution, it has broad development prospects and application potential. Photovoltaic brackets used for photovoltaic installations play a vital role in improving the stability of photovoltaic installations, power generation efficiency and service life.

[0003] For example, the Chinese patent application number (CN202410030136.0) discloses an adjustable prestressed large-span flexible photovoltaic bracket system, which drives the column gear to rotate through a dual-axis motor, and then drives the two ends of the photovoltaic bracket to move towards each other through the clamping slider, so that the photovoltaic bracket bends and arches, thereby increasing the prestress of the photovoltaic bracket. Conversely, the dual-axis motor drives the column gear to rotate in the opposite direction, thereby reducing the prestress of the photovoltaic bracket, which is convenient for adjusting the prestress of the photovoltaic bracket. However, it uses a pressure spring to push the top bevel block and then fix the adjusted clamping slider, with low fixing strength and poor stability. In addition, the power source for driving is set in the middle section of the photovoltaic bracket, which makes it inconvenient to install the power source when the photovoltaic bracket needs to cross areas such as high and low ground and pools. There are many limitations in the placement of photovoltaic brackets, which need to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide an adjustable prestressed large-span flexible photovoltaic bracket in response to the above-mentioned technical problems, so that the installation of the photovoltaic bracket is less limited by the terrain, and the structural strength and stability are high after the prestress is adjusted.

[0005] In view of this, the present invention provides an adjustable prestressed large-span flexible photovoltaic support, comprising:

[0006] Two groups of columns are arranged opposite to each other, and a bracket and a photovoltaic panel installed on the bracket are arranged between the two groups of columns;

[0007] A base is mounted on one side of the bracket and a set of uprights are slidably connected to the base;

[0008] An adjustment mechanism is mounted on the base and is used to push the two sets of columns closer or farther away;

[0009] A hydraulic mechanism is installed on the base and is used to fix the column after it is in place and is triggered by the adjustment mechanism;

[0010] Wherein, two ends of the bracket are hingedly connected to two groups of columns respectively.

[0011] In the above technical solution, further, it also includes:

[0012] The base is installed at the bottom end of the column, and a slide groove matching the base is opened on the base, and a groove is opened on the inner wall of the slide groove;

[0013] The abutment plate is installed in the groove and is pushed by the hydraulic mechanism to lock and unlock the base.

[0014] In the above technical solution, further, the regulating mechanism includes:

[0015] A threaded rod is slidably connected to the base, and one end of the rod is connected to a bearing with a push plate for pushing the base to slide along the slide groove;

[0016] A threaded seat is mounted on the base and is engaged with the other end of the threaded rod;

[0017] The driving member is installed at one end of the threaded rod away from the push plate and is used for driving the threaded rod to rotate.

[0018] In the above technical solution, further, the hydraulic mechanism includes:

[0019] The piston is connected to the side of the abutment plate close to the groove, and a piston cavity adapted to the piston is provided in the groove;

[0020] A hydraulic oil supply device, wherein a liquid inlet is provided on the base, and the hydraulic oil supply device is connected to the liquid inlet;

[0021] A hydraulic oil circulation device, wherein a liquid outlet is provided on the base, and the hydraulic oil circulation device is connected to the liquid outlet;

[0022] The regulating valve comprises a first ball valve installed at the liquid inlet and a second ball valve installed at the liquid outlet, wherein the first ball valve is used to drive the opening and closing of the liquid inlet, and the second ball valve is used to drive the opening and closing of the liquid outlet;

[0023] The base is provided with an oil supply passage between the first valve and the piston chamber, and an oil return passage between the second ball valve and the piston chamber.

[0024] In the above technical solution, further:

[0025] The first ball valve comprises a first valve core, a first valve cavity provided at the liquid inlet for mounting the first valve core, and a first valve seat mounted in the first valve cavity and located at both sides of the first valve core close to the liquid inlet and the oil supply channel;

[0026] The second ball valve comprises a second valve core, a second valve cavity provided at the liquid outlet for mounting the second valve core, and a second valve seat mounted in the second valve cavity and located at both sides of the second valve core close to the liquid outlet and the oil return passage;

[0027] The first valve core and the second valve core are vertically overlapped, and a connecting shaft is provided between the two for connecting the two. The first valve core and the second valve core are respectively provided with a first through hole and a second through hole perpendicular to each other in the horizontal direction.

[0028] In the above technical solution, further, the hydraulic mechanism also includes:

[0029] A driving switch is installed on the base and is used to drive the first ball valve and the second ball valve to open and close alternately;

[0030] The driving switch includes:

[0031] An extension shaft body is connected to the first valve core in a vertical direction and extends out of the base surface;

[0032] A ratchet wheel is connected to one end of the extension shaft body located on the surface of the base;

[0033] A push rod is slidably connected to the surface of the base, and is provided with two push rods, which are respectively located on both sides of the ratchet wheel, and one end of which is connected to the push plate;

[0034] The ratchet pawls are arranged in two groups opposite to each other and are respectively installed on the two push rods along a linear direction, and the two groups of ratchet pawls on the two push rods are arranged in opposite directions;

[0035] The number of ratchet pawls on each push rod is equal to one quarter of the number of ratchet teeth on the ratchet wheel, and a torsion spring is arranged inside the ratchet pawl for driving the ratchet to reset.

[0036] In the above technical solution, further, it also includes:

[0037] The support frame is installed between the two groups of columns, and the two ends are hinged to the two groups of columns respectively and are in an arc shape;

[0038] A top column is connected to a side of the bracket close to the support frame, and the top column abuts against the support frame;

[0039] A plurality of cables are provided and installed between the bracket and the support frame, and the two ends of the cables are respectively connected to the top column and the two ends of the bracket.

[0040] In the above technical solution, further, the top column includes:

[0041] A connecting seat is installed on the bracket;

[0042] A threaded column mounted on the connecting seat;

[0043] A sleeve is sleeved on the threaded column and threadedly connected to the threaded column;

[0044] The cable passes through the bottom end of the sleeve and is connected to the sleeve, and a notch is provided on the surface of the sleeve.

[0045] In the above technical solution, further:

[0046] A circular hole is opened on the inner wall of the sleeve, and a connecting column is arranged on the surface of the sleeve;

[0047] The cables are passed through the bottom end of the sleeve and the circular hole in sequence and are fixedly connected to the connecting column, and a plurality of cables are wound in the sleeve to form a twist shape.

[0048] In the above technical solution, further, the installation method includes the following steps:

[0049] S1: Piles are driven on both sides of the area to be crossed and concrete is poured to form a base;

[0050] S2: Fix a set of columns and bases on one side of the base, lay a base on the other side of the base, and connect another set of columns and bases to the base;

[0051] S3: installing an adjustment mechanism and a hydraulic mechanism on the base;

[0052] S4: erecting a support frame, brackets, top columns and cables between two sets of columns;

[0053] S5: By starting the adjustment mechanism, the column and the base on the base are pushed into place, and the hydraulic mechanism is driven to fix the base;

[0054] S6: tighten the cable by rotating the sleeve, and make the sleeve contact the surface of the support frame;

[0055] S7: laying photovoltaic panels on the surface of the bracket;

[0056] S8: Check the condition of each connection and the installation is completed.

[0057] The beneficial effects of the present invention are:

[0058] 1. By setting an adjustment mechanism on one side, the two groups of columns can be moved closer or farther away from each other, thereby reducing the limitations of the laying of photovoltaic brackets. After the adjustment mechanism is adjusted, that is, the prestress is adjusted, the columns are fixed by a hydraulic mechanism to improve the structural stability of the photovoltaic bracket and ensure the structural strength.

[0059] 2. The base is fixed by pushing the abutment plate through the piston to ensure the stability of the column structure thereon, and the first through hole and the second through hole opened perpendicularly to each other on the first valve core and the second valve core are convenient for controlling the hydraulic oil. When the first valve core is opened, the second valve core is closed, and the hydraulic oil supply device pumps hydraulic oil into the piston chamber. Conversely, when the first valve core is closed, the second valve core is opened, and the hydraulic oil will flow back to the hydraulic oil circulation device, so that the fixation of the column can be linked with the adjustment mechanism to improve convenience.

[0060] 3. Through the ratchet, pawls and setting the number of pawls on each push rod to one-fourth the number of ratchet teeth on the ratchet, the first valve core and the second valve core are pushed to rotate 90° after a single unidirectional movement of the push rod, that is, the switching between opening and closing is realized, and the push rods are arranged on both sides of the ratchet, and the pawls arranged thereon are in opposite directions. The adjusting mechanism pushes the column to move back and forth, and the first valve core and the second valve core are opened and closed alternately once, which is convenient for the control of the hydraulic oil, ensures the linkage with the adjusting mechanism, and improves convenience.

[0061] 4. Use a top column to abut the support frame to support the bracket and improve the stability of the bracket. Use a sleeve and a threaded column for the top column, rotate the sleeve to extend the top column, and tighten the cable at the same time, so that the cable has an upward force on the bracket through the top column, thereby increasing the prestress of the bracket and ensuring the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of the structure of the present invention;

[0063] Figure 2 is a top view of the present invention;

[0064] Figure 3 The present invention Figure 2 Sectional view at AA in the middle;

[0065] Figure 4 The present invention Figure 3 Enlarged view of point C in the middle;

[0066] Figure 5 The present invention Figure 2 Sectional view at the middle BB;

[0067] Figure 6 The present invention Figure 5 The enlarged view of point D in the middle;

[0068] Figure 7 is a side view of the present invention;

[0069] Figure 8 The present invention Figure 7 Sectional view at EE;

[0070] Fig. 9 The present invention Figure 8 Enlarged view of G in the middle;

[0071] Fig.10 The present invention Figure 7 Cross-sectional view at FF;

[0072] Fig.11 The present invention Fig.10 The enlarged view of the H in the middle;

[0073] The markings in the figure are as follows: 1. column; 2. bracket; 3. photovoltaic panel; 4. base; 5. adjustment mechanism; 50. threaded rod; 51. push plate; 52. threaded seat; 53. drive member; 6. hydraulic mechanism; 60. piston; 61. piston cavity; 62. liquid inlet; 63. liquid outlet; 64. first ball valve; 640. first valve core; 641. first valve cavity; 642. first valve seat; 643. first through hole; 65. second ball valve; 650. second valve core; 651. second valve cavity ; 652, second valve seat; 653, second through hole; 66, oil supply channel; 67, oil return channel; 68, connecting shaft; 69, drive switch; 690, extension shaft; 691, ratchet; 692, push rod; 693, pawl; 7, base; 8, slide groove; 9, groove; 10, abutment plate; 15, support frame; 16, top column; 160, connecting seat; 161, threaded column; 162, sleeve; 163, notch; 164, round hole; 165, connecting column; 17, cable. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0075] Embodiment 1:

[0076] This embodiment provides an adjustable prestressed large-span flexible photovoltaic support, including:

[0077] Two groups of columns 1 are arranged opposite to each other, and a bracket 2 and a photovoltaic panel 3 installed on the bracket 2 are arranged between the two groups of columns 1;

[0078] A base 4 is mounted on one side of the bracket 2, and a set of uprights 1 are slidably connected thereto;

[0079] An adjusting mechanism 5 is mounted on the base 4 and is used to push the two groups of columns 1 closer or farther away;

[0080] The hydraulic mechanism 6 is installed on the base 4 and is used to fix the column 1 after it is in place, and is triggered by the adjustment mechanism 5;

[0081] Wherein, both ends of the bracket 2 are hingedly connected to two groups of columns 1 respectively;

[0082] Furthermore, the bracket 2 is made of a flexible material, that is, the bracket 2 can be slightly bent under the push of the adjustment mechanism 5 and the column 1;

[0083] Meanwhile, the specific structure of the photovoltaic panel 3 and the connection structure between the photovoltaic panel 3 and the bracket 2 are both existing mature technologies and will not be described in detail here.

[0084] It can be seen from the present embodiment that an adjustment mechanism 5 is provided on one side of the bracket 2 to adjust the two groups of columns 1 to move closer to or further away from each other, thereby reducing the limitations of the laying of the photovoltaic bracket 2 and avoiding troubles in the laying of the photovoltaic bracket 2 when the areas need to be crossed due to high and low ground or pools, etc., and after the adjustment mechanism 5 adjusts the two groups of columns 1 to move closer to or further away from each other, that is, after adjusting the prestress, the hydraulic mechanism 6 is used to fix the moved columns 1 to improve the structural stability of the photovoltaic bracket 2 and ensure the structural strength.

[0085] Embodiment 2:

[0086] This embodiment provides an adjustable prestressed large-span flexible photovoltaic bracket, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0087] The base 7 is installed at the bottom end of the column 1, and a slide groove 8 adapted to the base 4 is opened on the base 4, and a groove 9 is opened on the inner wall of the slide groove 8;

[0088] The stop plate 10 is installed in the groove 9 and is pushed by the hydraulic mechanism 6 to lock and unlock the base 7;

[0089] Among them, the base 7 and the column 1 can be fixed with multiple bolts, and the base 7 is made of steel;

[0090] At the same time, the slide groove 8 is further provided with a slot below the groove 9, and the base 7 is further provided with a protrusion adapted thereto at the slot, so as to improve the connection strength of the sliding connection between the base 7 and the base 4, and a combination of a slide rail slider and a slide rail pulley may also be adopted, which will not be repeated here;

[0091] Furthermore, in order to further improve the locking effect on the base 7, a friction-enhancing layer, such as a friction-enhancing groove, a rubber friction-enhancing pad, etc., may be provided on one side of the abutment plate 10 close to the base 7, which will not be described in detail here.

[0092] It can be seen from this embodiment that the stability of the column 1 during adjustment is improved by setting the base 7; and the base 7 is abutted by the abutment plate 10 under the action of the hydraulic mechanism 6, thereby facilitating the locking of the base 7;

[0093] Furthermore, the formation of the groove 9 facilitates the embedded setting of the abutment plate 10, and there is no need to form a shape structure adapted thereto on the surface of the base 7, thereby improving the convenience of manufacturing.

[0094] Embodiment 3:

[0095] This embodiment provides an adjustable prestressed large-span flexible photovoltaic support, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The adjustment mechanism 5 includes:

[0096] The threaded rod 50 is slidably connected to the base 4, and one end of the threaded rod 50 is connected to a push plate 51 for pushing the base 7 to slide along the slide groove 8;

[0097] The threaded seat 52 is mounted on the base 4 and is engaged with the other end of the threaded rod 50;

[0098] A driving member 53 is mounted on an end of the threaded rod 50 away from the push plate 51 and is used to drive the threaded rod 50 to rotate;

[0099] The threaded seat 52 includes a mounting seat and a threaded sleeve, the threaded sleeve is embedded in the mounting seat, and the mounting seat and the base 4 are fixed by bolts.

[0100] And the driving member 53 can be automatic or manual;

[0101] Specifically, the automatic drive can be a motor, and a slide block can be set between the motor and the base 4 for sliding connection, and the output end of the motor is connected to the threaded rod 50 through a coupling, while the manual control can use a handle, by applying force to the handle, the threaded rod 50 can be rotated and move the push plate 51 to adjust the column 1.

[0102] It can be seen from the present embodiment that the column 1 is adjusted by pushing the push plate 51 by rotating the threaded rod 50, which has a simple structure and is easy to manufacture. When the driving member 53 is automatic, the convenience of adjustment can be improved, and when the driving member 53 is manual, the structure can be further simple and the manufacturing is easy.

[0103] Embodiment 4:

[0104] This embodiment provides an adjustable prestressed large-span flexible photovoltaic support, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the hydraulic mechanism 6 includes:

[0105] The piston 60 is connected to the side of the abutment plate 10 close to the groove 9, and a piston cavity 61 adapted to the piston 60 is opened in the groove 9;

[0106] A hydraulic oil supply device, a liquid inlet 62 is provided on the base 4, and the hydraulic oil supply device is connected to the liquid inlet 62;

[0107] A hydraulic oil circulation device, a liquid outlet 63 is provided on the base 4, and the hydraulic oil circulation device is connected to the liquid outlet 63;

[0108] The regulating valve includes a first ball valve 64 installed at the liquid inlet 62 and a second ball valve 65 installed at the liquid outlet 63, wherein the first ball valve 64 is used to drive the opening and closing of the liquid inlet 62, and the second ball valve 65 is used to drive the opening and closing of the liquid outlet 63;

[0109] The base 4 is provided with an oil supply passage 66 between the first valve and the piston chamber 61, and an oil return passage 67 between the second ball valve 65 and the piston chamber 61;

[0110] In addition, an annular groove is formed on the surface of the piston 60, a sealing ring is sleeved in the annular groove, and the piston 60 and the abutment plate 10 can be welded or integrated;

[0111] At the same time, the specific structure of the hydraulic oil supply device and the hydraulic oil circulation device is an existing mature technology, and may specifically include an oil storage tank, a plunger assembly, a drive assembly, etc., so as to achieve the function of pumping hydraulic oil into the liquid inlet 62 and maintaining the oil pressure and causing the hydraulic oil to flow back to the liquid outlet 63, which will not be repeated here.

[0112] It can be seen from the present embodiment that the hydraulic mechanism 6 uses the piston 60 to push the abutment plate 10 and thereby fix the base 7 for installing the column 1, thereby ensuring the fixing strength of the column 1, and the hydraulically driven piston 60 can ensure the driving force, thereby ensuring the force of the piston 60 on the abutment plate 10 and the base 7, ensuring the locking of the base 7 and the column 1, and improving the stability of the photovoltaic bracket 2 and the prestress.

[0113] Embodiment 5:

[0114] This embodiment provides an adjustable prestressed large-span flexible photovoltaic bracket, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0115] The first ball valve 64 includes a first valve core 640, a first valve cavity 641 opened at the liquid inlet 62 for mounting the first valve core 640, and a first valve seat 642 mounted in the first valve cavity 641 and located at both sides of the first valve core 640 close to the liquid inlet 62 and the oil supply channel 66;

[0116] The second ball valve 65 includes a second valve core 650, a second valve cavity 651 opened at the liquid outlet 63 for mounting the second valve core 650, and a second valve seat 652 mounted in the second valve cavity 651 and located at both sides of the second valve core 650 close to the liquid outlet 63 and the oil return channel 67;

[0117] The first valve core 640 and the second valve core 650 are vertically overlapped, and a connecting shaft 68 is provided between the two for connecting the two. The first valve core 640 and the second valve core 650 are respectively provided with a first through hole 643 and a second through hole 653 perpendicular to each other in the horizontal direction.

[0118] At the same time, the first valve core 640, the second valve core 650 and the connecting shaft body 68 adopt an integrated structure.

[0119] It can be seen from the present embodiment that the first through hole 643 and the second through hole 653 which are perpendicularly opened on the first valve core 640 and the second valve core 650 are adopted to facilitate the control of the hydraulic oil. When the driving switch 69 is driven by the adjusting mechanism 5, the first valve core 640 can be opened while the second valve core 650 is closed, and then the hydraulic oil supply device pumps hydraulic oil into the piston chamber 61 to fix the column 1. Conversely, after the first valve core 640 is closed, the second valve core 650 is opened, and the hydraulic oil will flow back to the hydraulic oil circulation device, so that the fixation of the column 1 can be linked with the adjusting mechanism 5, thereby improving convenience.

[0120] Embodiment 6:

[0121] This embodiment provides an adjustable prestressed large-span flexible photovoltaic support, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the hydraulic mechanism 6 also includes:

[0122] A driving switch 69 is installed on the base 4 and is used to drive the first ball valve 64 and the second ball valve 65 to open and close alternately;

[0123] Wherein, the driving switch 69 comprises:

[0124] The extension shaft 690 is connected to the first valve core 640 in a vertical direction and extends out of the surface of the base 4;

[0125] A ratchet 691 connected to one end of the extension shaft 690 located on the surface of the base 4;

[0126] Push rods 692 are slidably connected to the surface of the base 4, and are provided with two push rods, which are respectively located on both sides of the ratchet wheel 691, and one end of which is connected to the push plate 51;

[0127] The ratchet 693 is arranged in two groups opposite to each other and is respectively installed on the two push rods 692 along a linear direction, and the two groups of ratchet 693 on the two push rods 692 are arranged in opposite directions;

[0128] The number of ratchet pawls 693 on each push rod 692 is equal to one-fourth of the number of ratchet teeth on the ratchet wheel 691, and a torsion spring is provided inside the ratchet pawl 693 for driving the ratchet pawl to reset.

[0129] Furthermore, the extension shaft 690 and the first valve core 640 are of an integrated structure, and are spline-connected to the ratchet 691 , while a slide rail assembly is disposed between the push rod 692 and the base 4 .

[0130] It can be seen from the present embodiment that by setting the driving switch 69 to be a ratchet 691 and a pawl 693 installed on a push rod 692, and setting the number of pawls 693 on each push rod 692 to be one-fourth of the number of ratchet teeth on the ratchet 691, it is convenient to push the first valve core 640 and the second valve core 650 to rotate 90° after a single unidirectional movement of the push rod 692, that is, to achieve switching between opening and closing;

[0131] The two push rods 692 are arranged on both sides of the ratchet 691, and the pawls 693 arranged thereon are arranged in opposite directions, so that when the adjusting mechanism 5 pushes the column 1 to move back and forth, the first valve core 640 and the second valve core 650 are adjusted alternately once, which is convenient for controlling the hydraulic oil, ensuring linkage with the adjusting mechanism 5, and improving convenience.

[0132] Embodiment 7:

[0133] This embodiment provides an adjustable prestressed large-span flexible photovoltaic bracket, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0134] The support frame 15 is installed between the two groups of columns 1, and the two ends are respectively hinged to the two groups of columns 1 and are arc-shaped;

[0135] A top column 16 is connected to a side of the bracket 2 close to the support frame 15, and the top column 16 abuts against the support frame 15;

[0136] A plurality of cables 17 are provided and installed between the bracket 2 and the support frame 15, and the two ends of the cables are respectively connected to the top column 16 and the two ends of the bracket 2;

[0137] The support frame 15 is an arc-shaped structure that arches upward, and the top column 16 is fixed to the bracket 2 by bolts, and the cable 17 is a steel cable, and the bracket 2 is provided with a U-shaped joint for connecting the steel cable, and the steel cable includes at least three cable 17 locks after passing through the U-shaped joint;

[0138] Furthermore, the number of the cables 17 is 2n times the number of the top posts 16 , where n is a positive integer, and a plurality of top posts 16 may be provided.

[0139] It can be seen from this embodiment that the top column 16 is used to abut the support frame 15 to support the bracket 2, thereby improving the stability of the bracket 2, and the support frame 15 adopts an arc structure, and both ends are respectively hinged to the two groups of columns 1, so that the support frame 15 is also adjusted with the adjustment mechanism 5, and the support frame 15 has prestress, thereby improving the structural stability of the photovoltaic bracket 2;

[0140] In addition, the cable 17 is used to further improve the stability of the prestressed force of the bracket 2, and it is set at the bottom end of the top column 16, so that the cable 17 can exert an upward force on the support frame 15 through the top column 16, further improving the supporting effect and ensuring the stability of the photovoltaic bracket 2.

[0141] Embodiment 8:

[0142] This embodiment provides an adjustable prestressed large-span flexible photovoltaic support, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the top column 16 includes:

[0143] A connecting seat 160 is mounted on the bracket 2;

[0144] A threaded column 161 is mounted on the connecting seat 160;

[0145] The sleeve 162 is sleeved on the threaded column 161 and threadedly connected to the threaded column 161;

[0146] The cable 17 passes through the bottom end of the sleeve 162 and is connected to the sleeve 162, and a notch 163 is provided on the surface of the sleeve 162;

[0147] At the same time, the bottom end of the sleeve 162 is rounded to reduce the friction resistance between the cable 17 and the sleeve 162 when the sleeve 162 rotates.

[0148] It can be seen from this embodiment that by using the sleeve 162 and the threaded column 161 for the top column 16, the sleeve 162 can be rotated to extend the top column 16, so that it can be further adjusted after abutting against the surface of the support frame 15, thereby ensuring the structural stability between the support frame 15 and the bracket 2, and ensuring the stability of the prestress;

[0149] The opening of the notch 163 facilitates the rotation adjustment of the sleeve 162 by a wrench.

[0150] Embodiment 9:

[0151] This embodiment provides an adjustable prestressed large-span flexible photovoltaic bracket, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0152] A circular hole 164 is formed on the inner wall of the sleeve 162, and a connecting column 165 is provided on the surface of the sleeve 162;

[0153] The cables 17 pass through the bottom end of the sleeve 162 and the circular hole 164 in sequence and are fixedly connected to the connecting column 165, and multiple cables 17 are wound in the sleeve 162 to form a twist shape;

[0154] Meanwhile, welding is adopted between the connecting column 165 and the sleeve 162, and the connecting column 165 can be bolted, and after the cable 17 passes through the circular hole 164 and is sleeved on the connecting column 165, it is locked by a nut.

[0155] It can be seen from the present embodiment that one end of the cable 17 is fixedly connected by a connecting column 165, and multiple cables 17 are wound in the sleeve 162 to form a twist shape, and then the cable 17 can be fixed by the friction force generated after the multiple cables 17 are wound together, thereby ensuring the stability of the prestress of the cable 17 on the bracket 2, and when a load is applied to the bracket 2, the structural strength and stability are improved.

[0156] Embodiment 10:

[0157] This embodiment provides an adjustable prestressed large-span flexible photovoltaic bracket, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the installation method includes the following steps:

[0158] S1: Piles are driven on both sides of the area to be crossed and concrete is poured to form a base;

[0159] S2: Fix a set of columns 1 and base 7 on one side of the base, lay a base 4 on the other side of the base, and connect another set of columns 1 and base 7 to the base 4;

[0160] S3: Installing an adjustment mechanism 5 and a hydraulic mechanism 6 on the base 4;

[0161] S4: Install a support frame 15, a bracket 2, a top column 16 and a cable 17 between two groups of columns 1;

[0162] S5: By starting the adjustment mechanism 5, the column 1 and the base 7 on the base 4 are pushed into place, and the hydraulic mechanism 6 is driven to fix the base 7;

[0163] S6: tighten the cable 17 by rotating the sleeve 162, and make the sleeve 162 contact the surface of the support frame 15;

[0164] S7: Laying photovoltaic panels 3 on the surface of the bracket 2;

[0165] S8: Check the condition of each connection and the installation is completed.

[0166] It can be seen from the present embodiment that the above-mentioned installation method facilitates the installation of the photovoltaic bracket 2 in the area to be crossed, and is convenient and efficient. At the same time, the space below the photovoltaic bracket 2 is spacious and will not be affected by the high and low ground or pool of the area to be crossed, thus reducing limitations. The photovoltaic bracket 2 can also be installed on a flat ground, and then a greenhouse or tent can be erected under the photovoltaic bracket 2 to form a large indoor space for activities while also being able to perform photovoltaic power generation, thus achieving dual functions.

[0167] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An adjustable prestressed large-span flexible photovoltaic support, characterized in that ,include: Two groups of columns (1) are arranged opposite to each other, and a bracket (2) and a photovoltaic panel (3) mounted on the bracket (2) are provided between the two groups of columns (1); A base (4) is mounted on one side of the bracket (2), and a set of uprights (1) are slidably connected thereto; An adjustment mechanism (5) is mounted on the base (4) and is used to push the two groups of columns (1) closer together or farther apart; A hydraulic mechanism (6) is mounted on the base (4) and is used to fix the column (1) after it is in place and is triggered by the adjustment mechanism (5); Wherein, the two ends of the bracket (2) are respectively hingedly connected to the two groups of columns (1); Among them, it also includes: A base (7) is mounted on the bottom end of the column (1), and a slide groove (8) matching the base (4) is provided on the base (4), and a groove (9) is provided on the inner wall of the slide groove (8); A stop plate (10) is installed in the groove (9) and is pushed by the hydraulic mechanism (6) to lock and unlock the base (7); The support frame (15) is installed between the two groups of columns (1), and the two ends are respectively hingedly connected to the two groups of columns (1) and are arc-shaped; A top column (16) is connected to a side of the bracket (2) close to the support frame (15), and the top column (16) is in abutment with the support frame (15); A plurality of cables (17) are provided and installed between the bracket (2) and the support frame (15), and the two ends of the cables are respectively connected to the top column (16) and the two ends of the bracket (2); Wherein, the regulating mechanism (5) comprises: A threaded rod (50) is slidably connected to the base (4), and one end of the threaded rod is connected to a bearing with a push plate (51) for pushing the base (7) to slide along the slide groove (8); A threaded seat (52) is mounted on the base (4) and is engaged with the other end of the threaded rod (50); The driving member (53) is mounted on one end of the threaded rod (50) away from the push plate (51) and is used to drive the threaded rod (50) to rotate.

2. The adjustable prestressed large-span flexible photovoltaic support according to claim 1 is characterized in that: The hydraulic mechanism (6) comprises: A piston (60) is connected to a side of the abutment plate (10) close to the groove (9), and a piston cavity (61) adapted to the piston (60) is provided in the groove (9); A hydraulic oil supply device, wherein a liquid inlet (62) is provided on the base (4), and the hydraulic oil supply device is connected to the liquid inlet (62); A hydraulic oil circulation device, wherein a liquid outlet (63) is provided on the base (4), and the hydraulic oil circulation device is connected to the liquid outlet (63); The regulating valve comprises a first ball valve (64) installed at the liquid inlet (62) and a second ball valve (65) installed at the liquid outlet (63), wherein the first ball valve (64) is used to drive the opening and closing of the liquid inlet (62), and the second ball valve (65) is used to drive the opening and closing of the liquid outlet (63); The base (4) is provided with an oil supply passage (66) between the first valve and the piston chamber (61), and an oil return passage (67) between the second ball valve (65) and the piston chamber (61).

3. The adjustable prestressed large-span flexible photovoltaic support according to claim 2 is characterized in that: The first ball valve (64) comprises a first valve core (640), a first valve cavity (641) opened at the liquid inlet (62) for mounting the first valve core (640), and a first valve seat (642) mounted in the first valve cavity (641) and located on both sides of the first valve core (640) close to the liquid inlet (62) and the oil supply channel (66); The second ball valve (65) comprises a second valve core (650), a second valve chamber (651) provided at the liquid outlet (63) for mounting the second valve core (650), and a second valve seat (652) mounted in the second valve chamber (651) and located on both sides of the second valve core (650) close to the liquid outlet (63) and the oil return channel (67); The first valve core (640) and the second valve core (650) are arranged to overlap vertically, and a connecting shaft (68) is arranged between the two for connecting the two. The first valve core (640) and the second valve core (650) are respectively provided with a first through hole (643) and a second through hole (653) perpendicular to each other in the horizontal direction.

4. The adjustable prestressed large-span flexible photovoltaic support according to claim 3 is characterized in that: The hydraulic mechanism (6) further comprises: A drive switch (69) is mounted on the base (4) and is used to drive the first ball valve (64) and the second ball valve (65) to open and close alternately; Wherein, the driving switch (69) comprises: An extension shaft (690) is connected to the first valve core (640) in a vertical direction and extends out of the surface of the base (4); A ratchet (691) connected to one end of the extension shaft (690) located on the surface of the base (4); A push rod (692) is slidably connected to the surface of the base (4), and is provided with two push rods, which are respectively located on both sides of the ratchet wheel (691), and one end of which is connected to the push plate (51); Two groups of ratchet pawls (693) are arranged opposite to each other and are respectively installed linearly on the two push rods (692), and the two groups of ratchet pawls (693) on the two push rods (692) are arranged in opposite directions; The number of ratchet pawls (693) on each push rod (692) is equal to one quarter of the number of ratchet teeth on the ratchet wheel (691), and a torsion spring for driving the ratchet pawl (693) to reset is arranged inside the ratchet pawl (693).

5. The adjustable prestressed large-span flexible photovoltaic support according to claim 1, characterized in that: The top column (16) comprises: A connecting seat (160) is mounted on the bracket (2); A threaded column (161) mounted on the connecting seat (160); A sleeve (162) is sleeved on the threaded column (161) and threadedly connected to the threaded column (161); The pull cable (17) passes through the bottom end of the sleeve (162) and is connected to the sleeve (162), and a notch (163) is provided on the surface of the sleeve (162).

6. The adjustable prestressed large-span flexible photovoltaic support according to claim 5 is characterized in that: A circular hole (164) is formed on the inner wall of the sleeve (162), and a connecting column (165) is provided on the surface of the sleeve (162); The cables (17) are sequentially passed through the bottom end of the sleeve (162) and the circular hole (164) and are fixedly connected to the connecting column (165), and a plurality of cables (17) are wound in the sleeve (162) to form a twisted shape.

7. The adjustable prestressed large-span flexible photovoltaic support according to any one of claims 1 to 6, characterized in that: The installation method includes the following steps: S1: Piles are driven on both sides of the area to be crossed and concrete is poured to form a base; S2: fixing a set of columns (1) and a base (7) on a base on one side, laying a base (4) on the base on the other side, and connecting another set of columns (1) and a base (7) to the base (4); S3: installing an adjustment mechanism (5) and a hydraulic mechanism (6) on the base (4); S4: installing a support frame (15), a bracket (2), a top column (16) and a cable (17) between the two groups of columns (1); S5: By starting the adjustment mechanism (5), the column (1) and the base (7) on the base (4) are pushed into place, and the hydraulic mechanism (6) is driven to fix the base (7); S6: tightening the cable (17) by rotating the sleeve (162) and making the sleeve (162) contact the surface of the support frame (15); S7: laying a photovoltaic panel (3) on the surface of the support (2); S8: Check the condition of each connection and the installation is completed.

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