Double-shaft adjustment photovoltaic panel mounting and supporting device suitable for mountainous region photovoltaic

Abstract

The invention belongs to the technical field of photovoltaic supporting, and discloses a double-shaft adjusting photovoltaic panel mounting and supporting device suitable for mountain photovoltaic, which comprises a vertical double-shaft top frame, a vertical rod is fixedly connected to the bottom of the double-shaft top frame, a fixed plate is fixedly connected to the end part of the vertical rod, and a conical head rod, a telescopic sleeve rod and an outer sleeve rod are arranged to form three layers of sleeve rods. During installation, the telescopic sleeve rod and the outer sleeve rod are firstly inserted into a pre-drilled hole, and then the conical head rod is instantly pressurized to eject the steel nail out and penetrate into a rock stratum to form a barb structure, so that supporting stress is dispersed, and the ground gripping capacity of a concrete base is effectively improved; therefore, when the temperature changes, the outer sleeve rod and the telescopic sleeve rod can extrude the thick rubber ring, certain telescopic amount changes are achieved, the self-adaptive telescopic compensation effect is achieved, and the situation that due to traditional rigid connection, the embedded anchor rod is loosened from a rock stratum under the temperature change is avoided.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic support technology, specifically a dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaic applications. Background Technology

[0002] Mountainous terrain refers to heterogeneous and highly variable landforms formed by intense geological tectonic movements, differential weathering and erosion, and climatic effects. Therefore, when installing biaxial photovoltaic panels, the support base needs to be tilted to fit, and the pull-out resistance of the anchor bolts needs to be increased.

[0003] A mountain photovoltaic dual-column support frame, disclosed in prior art document CN119298806A, includes a base with multiple vertical plates fixedly mounted on the top; a rotating shaft rotatably mounted on one side of the multiple vertical plates; a rotating plate fixedly sleeved on the rotating shaft; a support plate fixedly mounted on the rotating plate; a photovoltaic panel mounting mechanism fixedly mounted on the support plate for mounting photovoltaic panels; an angle adjustment mechanism on the mounted vertical plates for adjusting the angle of the photovoltaic panel mounting mechanism; a positioning mechanism disposed on the inner wall of the base for mounting and fixing the base; and a drive mechanism disposed on the inner wall of the top of the base for driving two screws to rotate. The mountain photovoltaic dual-column support frame provided by this application has the advantages of strong stability after installation, easy installation and disassembly, and the ability to adjust the installation angle of the photovoltaic panels according to the slope of the mountain. Although the above application uses two screws to rotate and fix the base to the rock layer, the rigid connection of the screws into the rock layer is not only unable to reach a deep position due to the heterogeneous state of the mountain, but also causes the material of the screws to change with the rock layer when the temperature changes, resulting in a certain amount of expansion and contraction, causing it to loosen from the rock layer, lose its grip, and affect the use of the photovoltaic panels above. Summary of the Invention

[0004] To address the issue raised in the background art that changes in temperature can cause the screw material to expand and contract with the rock strata, leading to its detachment, this invention provides a dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaic applications.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaic applications, comprising a vertical dual-axis top frame, a vertical rod fixedly connected to the bottom of the dual-axis top frame, a fixing plate fixedly connected to the end of the vertical rod, a concrete base rotatably connected to the bottom of the vertical rod via a ball joint, threaded short rods symmetrically installed on both sides of the concrete base, and further comprising: a mountain positioning mechanism located on both sides of the concrete base; and a multi-directional locking mechanism located in the middle of the concrete base. Among them, the mountain positioning mechanism can position the concrete base in special mountain terrain, and the multi-directional locking mechanism can rotate the dual-axis top frame to the appropriate position and lock it according to the ground slope.

[0006] Preferably, the mountain positioning mechanism includes waist-shaped seats movably connected to both sides of a concrete base. An outer sleeve rod is fixedly connected to the bottom of the waist-shaped seat. A telescopic sleeve rod is slidably sleeved inside the inner cavity of the outer sleeve rod. A conical rod is movably sleeved inside the inner cavity of the telescopic sleeve rod.

[0007] Preferably, a thick rubber ring is slidably fitted onto the outer wall of the conical rod, with the upper and lower ends of the thick rubber ring abutting against the outer sleeve rod and the telescopic sleeve rod, respectively. The conical rod passes through the middle of the waist-shaped seat, and a protective cover is elastically connected to the top of the conical rod, with the protective cover threadedly connected to the concrete base.

[0008] Preferably, the top inner cavity of the telescopic sleeve rod is provided with an irregular groove, which is divided into two parts. The upper part is set as two centrally symmetrical arc-shaped sliding grooves, and the lower part is set as a straight sliding groove. The conical rod is slidably connected to the irregular groove through a protrusion.

[0009] Preferably, the side wall of the conical rod is symmetrically provided with vertical grooves, and the conical rod is slidably engaged with several steel nails through the vertical grooves. The steel nails obliquely penetrate the side wall of the telescopic sleeve rod, and the outer wall of the steel nails is provided with several limiting grooves.

[0010] Preferably, a U-shaped sleeve plate is movably connected to the middle of the telescopic sleeve rod, a pair of push blocks are symmetrically fixed to the top center of the outer sleeve rod, and several open slots are opened at the lower edge of the U-shaped sleeve plate. The steel nail is engaged in the open slots through the limiting groove, and the push block and the protrusion abut against each other.

[0011] Preferably, a pair of support blocks are slidably connected to the bottom of the telescopic sleeve rod, and a locking bar is elastically connected to the side of the pair of support blocks that are close to each other, and the locking bar is slidably engaged with the conical rod.

[0012] Preferably, the multi-directional locking mechanism includes multiple plastic expansion balls rotatably connected to the middle of the concrete base, and the edges of the plastic expansion balls are provided with several arc-shaped cavities at an angle.

[0013] Preferably, the plastic expansion ball has a through groove in the middle, the lower end of the screw is threaded into the middle of the through groove, and the screw abuts against the extrusion ball.

[0014] Preferably, the extrusion ball is slidably connected to both sides of the through groove, and the extrusion ball abuts against the concrete base.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This invention adapts to the installation of bases in mountainous terrain by setting up a combination of structures such as cone-shaped rods, telescopic sleeve rods and steel nails. Through the three-layer sleeve rod setup of cone-shaped rods, telescopic sleeve rods and outer sleeve rods, the telescopic sleeve rods and outer sleeve rods are first inserted into the pre-drilled hole during installation. Then, the steel nails are shot out by instantaneous pressure from the cone-shaped rods, penetrating into the rock layer to form a barbed structure. This not only disperses the supporting stress but also effectively increases the gripping ability of the concrete base. Furthermore, since the top of the telescopic sleeve rod is in contact with the outer sleeve rod through a thick rubber ring, the outer sleeve rod and the telescopic sleeve rod can squeeze the thick rubber ring when the temperature changes, resulting in a certain amount of expansion and contraction. This achieves the effect of adaptive expansion and contraction compensation, avoiding the situation where the pre-embedded anchor rods become loose from the rock layer due to temperature changes, which is a problem with traditional rigid connections.

[0016] (2) By setting up a U-shaped sleeve plate and a push block, the present invention ensures that the steel nail is always constrained by the U-shaped sleeve plate during the insertion of the telescopic sleeve rod and the outer sleeve rod into the pre-drilled hole. Even if it encounters severe friction from the borehole rock wall, it will not accidentally come out. Only after the telescopic sleeve rod and the outer sleeve rod are inserted into the pre-drilled hole can the cone rod be rotated, and the push block is squeezed by the protrusion to make the U-shaped sleeve plate rotate, release the opening slot from the steel nail's limit, and carry out the key anchoring expansion stage, thus ensuring the accuracy of the anchoring expansion.

[0017] (3) The present invention facilitates the improvement of the stability of the device by setting up the combination of plastic expansion balls and extrusion balls. After the concrete base is installed, the verticality of the vertical rod needs to be adjusted according to the actual slope of the mountain. When the screw enters the through groove, it can be opened up. When the screw abuts against the extrusion ball, the extrusion ball can be moved to both sides to abut against the inner cavity of the concrete base, avoiding the plastic expansion ball from rotating with the concrete base. This ensures that there is sufficient friction between the end of the screw and the concrete base. Compared with traditional expansion bolts, the combination of plastic expansion balls and extrusion balls can effectively improve the pull-out resistance. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a schematic diagram showing the structural fit between the waist-shaped seat and the concrete base of the present invention; Figure 4 This is a schematic diagram showing the structural fit between the plastic expansion ball and the screw in this invention; Figure 5 This is a schematic diagram showing the structural fit between the conical rod and the telescopic sleeve rod of the present invention; Figure 6 This is a schematic diagram showing the structural fit between the telescopic sleeve and the U-shaped sleeve plate of the present invention; Figure 7 This is a schematic diagram showing the structural fit between the protrusion and the conical rod of the present invention; Figure 8 This is a schematic diagram showing the structural fit between the U-shaped sleeve and the push block of the present invention; Figure 9 This is a schematic diagram showing the structural fit between the steel nail and the U-shaped sleeve of the present invention; Figure 10 This is a schematic diagram showing the structural fit between the protrusion and the push block of the present invention; Figure 11 This is a schematic diagram showing the structural fit between the support block and the telescopic sleeve rod of the present invention; Figure 12 This is a schematic diagram showing the structural fit between the locking bar and the cone-shaped rod of the present invention; Figure 13 This is a schematic diagram showing the structural fit between the extrusion ball and the concrete base of the present invention; Figure 14 This is a schematic diagram showing the structural fit between the extrusion ball and the through groove of the present invention.

[0019] In the picture: 1. Dual-axis top frame; 2. Vertical rod; 3. Fixing plate; 4. Concrete base; 5. Ball shaft; 6. Mountain positioning mechanism; 601. Protective cover; 602. Outer rod; 603. Telescopic sleeve rod; 604. Steel nail; 605. Support block; 606. Waist-shaped seat; 607. Conical rod; 608. Vertical groove; 609. Protrusion; 6010. Thick rubber ring; 6011. Irregular groove; 6012. U-shaped sleeve plate; 6013. Limiting groove; 6014. Push block; 6015. Opening slot; 6016. Locking bar; 7. Multi-directional locking mechanism; 701. Plastic expansion ball; 702. Screw; 703. Arc-shaped cavity; 704. Extrusion ball; 705. Through groove; 8. Threaded short rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 14 As shown, the present invention provides a dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaics, including a vertical dual-axis top frame 1, a vertical rod 2 fixedly connected to the bottom of the dual-axis top frame 1, a fixing plate 3 fixedly connected to the end of the vertical rod 2, a concrete base 4 rotatably connected to the bottom of the vertical rod 2 through a ball joint 5, threaded short rods 8 symmetrically installed on both sides of the concrete base 4, and further including: a mountain positioning mechanism 6, which is located on both sides of the concrete base 4; and a multi-directional locking mechanism 7, which is located in the middle of the concrete base 4. Among them, the mountain positioning mechanism 6 can position the concrete base 4 in the special terrain of the mountain, and together with the multi-directional locking mechanism 7, it can rotate the dual-axis top frame 1 to a suitable position and lock it according to the ground slope.

[0022] Using the above method: When installing the support frame, a total station is needed to perform three-dimensional coordinate layout based on the geometric dimensions of the concrete base 4 to determine the pre-drilling location. Drilling is carried out vertically downwards using a hydraulic rotary drilling rig to ensure the drilling depth penetrates the surface soil and reaches the rock strata.

[0023] like Figures 4 to 7 As shown, the mountain positioning mechanism 6 includes a waist-shaped seat 606 movably connected to both sides of the concrete base 4. An outer sleeve rod 602 is fixedly connected to the bottom of the waist-shaped seat 606. A telescopic sleeve rod 603 is slidably sleeved inside the inner cavity of the outer sleeve rod 602. A conical rod 607 is movably sleeved inside the inner cavity of the telescopic sleeve rod 603. A thick rubber ring 6010 is slidably sleeved on the outer wall of the conical rod 607. The upper and lower ends of the thick rubber ring 6010 abut against the outer sleeve rod 602 and the telescopic sleeve rod 603, respectively. The conical rod 607 passes through the middle of the waist-shaped seat 606. A protective cover 601 is elastically connected to the top of the conical rod 607, and the protective cover 601 is threadedly connected to the concrete base 4.

[0024] The above solution utilizes a pre-tightening force generated by the polyurethane elastic pad built into the protective cover 601, eliminating the structural gap with the cone-shaped rod 607. Furthermore, temperature compensation for the entire anchor bolt system is achieved by a thick rubber ring 6010, allowing for partial thermal expansion and contraction displacement and preventing stress concentration under varying environmental temperature conditions.

[0025] like Figures 7 to 12 As shown, the top inner cavity of the telescopic sleeve 603 has a shaped groove 6011, which is divided into two parts. The upper part is set as two centrally symmetrical arc-shaped sliding grooves, and the lower part is set as a straight sliding groove. The conical rod 607 is slidably connected to the shaped groove 6011 through the protrusion 609. The side wall of the conical rod 607 has symmetrical vertical grooves 608. Several steel nails 604 are slidably engaged with the conical rod 607 through the vertical grooves 608. The steel nails 604 obliquely penetrate the side wall of the telescopic sleeve 603, and several limiting grooves 6013 are opened on the outer wall of the steel nails 604. A U-shaped sleeve plate 6012 is movably connected to the middle of the rod 603. A pair of push blocks 6014 are symmetrically fixed to the top center of the outer sleeve rod 602. Several open slots 6015 are opened on the lower edge of the U-shaped sleeve plate 6012. The steel nail 604 is engaged in the open slots 6015 through the limiting groove 6013. The push block 6014 and the protrusion 609 abut against each other. A pair of support blocks 605 are slidably connected to the bottom of the telescopic sleeve rod 603. A locking bar 6016 is elastically connected to the side of the pair of support blocks 605 that are close to each other. The locking bar 6016 is slidably engaged on the conical rod 607.

[0026] The above solution addresses the challenge of adapting traditional rigid anchor bolts to varying rock dip angles, typically ranging from 10° to 30°, which are difficult to accommodate in mountainous terrain. The waist-shaped seat 606 in this design, with its waist-shaped hinge structure, allows for omnidirectional adjustment on the concrete base 4. This enables the outer sleeve 602 and telescopic sleeve 603 to automatically deflect according to the actual drilling trajectory, significantly reducing borehole inclination correction time and saving over 60% compared to traditional methods. The steel nail 604 is always constrained by the U-shaped sleeve 6012, preventing accidental dislodgement even during intense friction from the borehole wall. Once the outer sleeve 602 is fully inserted into the borehole, the crucial anchoring and expansion stage begins. The operator rotates the conical rod 607, causing the protrusion 609 to move from the arc-shaped groove into the straight groove track. During the downward press, the vertical groove 608 of the conical rod 607 aligns with the steel nail 604. An external hydraulic cylinder applies downward pressure instantaneously, and the conical surface at the bottom of the conical rod 607 propels the steel nail 604 at high speed through the oblique hole on the side wall of the telescopic sleeve 603, penetrating the rock strata to form a barbed structure. As the conical rod 607 continues to move downward, its conical surface at the bottom pushes the support block 605 to expand radially, and finally the locking bar 6016 is engaged in the groove of the conical rod 607 under the action of spring force, completing the mechanical interlock.

[0027] like Figure 13 and Figure 14 As shown, the multi-directional locking mechanism 7 includes multiple plastic expansion balls 701 rotatably connected to the middle of the concrete base 4. The edges of the plastic expansion balls 701 are provided with several arc-shaped cavities 703. A through groove 705 is provided in the middle of the plastic expansion ball 701. The lower end of the screw 702 is threadedly connected to the middle of the through groove 705, and the screw 702 abuts against the compression ball 704. The compression ball 704 is slidably connected to both sides of the through groove 705, and the compression ball 704 abuts against the concrete base 4.

[0028] Using the above scheme: After installation on the concrete base 4, the verticality of the vertical rod 2 needs to be adjusted according to the actual slope of the mountain. The eccentricity between the center of the ball shaft 5 and the axis of the vertical rod 2 is designed to be 8mm, and ±20 degrees of angle compensation can be achieved by rotation. The plastic expansion ball 701 is made of PA66-GF30 material. When the screw is screwed in, the expansion force is generated to compress the plastic expansion ball 701. When the screw 702 continues to be screwed in, the compression ball 704 is pushed to both sides to limit the rotation of the plastic expansion ball 701. Compared with traditional expansion bolts, this can effectively improve the pull-out resistance.

[0029] Working principle and usage process of this invention: When installing the support frame, pre-drill holes at designated locations according to the size of the concrete base 4 and the spacing between the two waist-shaped seats 606 to ensure that the positioning anchor rods can smoothly reach the rock strata. After drilling is completed, first install the conical rod 607 as follows: Figure 5As shown, the conical rod 607 is engaged in the arc-shaped groove on the upper part of the irregular groove 6011. At this time, the outer sleeve rods 602 and the telescopic sleeve rods 603 on both sides are simultaneously inserted into the pre-drilled hole. Due to the special terrain of the mountain, the rock hardness in the rock strata varies, which may cause deviation in the drilling angle. However, within a certain range, the waist-shaped seat 606 can rotate arbitrarily on the concrete base 4. Therefore, the outer sleeve rods 602 and the telescopic sleeve rods 603 can deflect at different angles to adapt to the actual drilling angle and save installation time. When the outer sleeve rod 602 is fully inserted into the drill hole, the concrete base 4 is close to the bottom surface. At this time, the threaded short rods 8 on both sides can be drilled into the ground surface by electric drill for initial positioning. Next, rotate the conical rod 607 to move the protrusion 609 from the arc-shaped groove to the straight groove. Press down the conical rod 607 to make the protrusion 609 slide along the straight groove. At this time, the vertical groove 608 on the conical rod 607 is rotated to the position of the steel nails 604 on both sides. An external cylinder device can be connected to apply pressure to quickly press down the conical rod 607. When the conical surface at the end of the conical rod 607 contacts the steel nails 604, since the steel nails 604 are inclined and penetrate the side wall of the telescopic sleeve rod 603, the high-speed compression of the conical rod 607 can push the steel nails 604 outward and insert them into the rock layers on both sides to form a barbed connection. This not only disperses the supporting stress but also effectively increases the gripping ability of the concrete base 4. As the conical rod 607 continues to descend, it compresses the pair of support blocks 605 at the bottom, causing them to move to both sides. When the conical rod 607 reaches the bottom of the telescopic sleeve rod 603, the locking strip 6016 inside the support block 605 engages with the conical rod 607 under the action of spring force, locking the conical rod 607 laterally. The support block 605 also abuts against the external rock. The protective cover 601 is then threaded in, causing the rubber elastic pad fixed to its inner surface to press against the top of the conical rod 607, ensuring the position of the conical rod 607 is fixed, thus completing the installation of the concrete base 4. Figure 11 As shown. Since the top of the telescopic sleeve rod 603 abuts against the outer sleeve rod 602 through the thick rubber ring 6010, when the temperature changes, the outer sleeve rod 602 and the telescopic sleeve rod 603 can squeeze the thick rubber ring 6010, which has a certain amount of expansion and contraction, achieving the effect of adaptive compensation, avoiding the traditional rigid connection, which causes the pre-embedded anchor rod to loosen from the rock layer under temperature changes; When the conical rod 607 rotates, the protrusion 609 slides within the upper arc-shaped groove of the irregular groove 6011, thereby pushing the push block 6014 and causing the U-shaped sleeve plate 6012 to rotate. The opening slot 6015 on the U-shaped sleeve plate 6012 separates from the steel nail 604, and the limiting groove 6013 on the steel nail 604 is also released from the U-shaped sleeve plate 6012. Therefore, the conical rod 607 can smoothly push out the steel nail 604. Even if some rock layers are hard and the steel nail 604 is bent, the bent steel nail 604 can fill the gap between the telescopic rod 603 and the rock wall, ensuring that the telescopic rod 603 and the rock wall form a supporting and compressive state. Together with the remaining inserted steel nails 604, a good pull-out resistance effect can also be achieved. When the U-shaped sleeve plate 6012 is engaged and locked with the steel nail 604, the position of the steel nail 604 remains unchanged, which can ensure that the steel nail 604 will not be hooked out by the gravel on both sides during the process of the telescopic sleeve rod 603 entering the pre-drilled hole, thus preventing failure. After the concrete base 4 is installed, the vertical rod 2 is rotated to a suitable position using the ball bearing 5 according to the slope of the mountain. Then, several screws 702 are installed in sequence. By rotating the plastic expansion ball 701, its opening is aligned with the end of the screw 702. Then, the screw 702 is rotated by an electric drill, and the screw 702 enters the through groove 705, which can expand it and fill the arc cavity 703. The arc cavity 703 appropriately reduces the layer thickness of the plastic expansion ball 701, so that the plastic expansion ball 701 can expand outward as a whole. When the screw 702 abuts against the compression ball 704, the compression ball 704 can be moved to both sides to abut against the inner cavity of the concrete base 4, preventing the plastic expansion ball 701 from rotating with the concrete base 4. This ensures that there is sufficient friction between the end of the screw 702 and the concrete base 4, improving the stability of the device.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaic applications, comprising a vertical dual-axis top frame (1), a vertical rod (2) fixedly connected to the bottom of the dual-axis top frame (1), a fixing plate (3) fixedly connected to the end of the vertical rod (2), a concrete base (4) rotatably connected to the bottom of the vertical rod (2) via a ball shaft (5), and threaded short rods (8) symmetrically installed on both sides of the concrete base (4), characterized in that: Also includes: Mountain positioning mechanism (6), the mountain positioning mechanism (6) is located on both sides of the concrete base (4); A multi-directional locking mechanism (7) is located in the middle of the concrete base (4); Among them, the mountain positioning mechanism (6) can position the concrete base (4) in the special terrain of the mountain, and the multi-directional locking mechanism (7) can rotate the double-axis top frame (1) to a suitable position and lock it according to the ground slope.

2. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaic applications according to claim 1, characterized in that: The mountain positioning mechanism (6) includes a waist-shaped seat (606) movably connected to both sides of the concrete base (4). An outer sleeve rod (602) is fixedly connected to the bottom of the waist-shaped seat (606). A telescopic sleeve rod (603) is slidably sleeved in the inner cavity of the outer sleeve rod (602). A conical rod (607) is movably sleeved in the inner cavity of the telescopic sleeve rod (603).

3. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaic applications according to claim 2, characterized in that: The outer wall of the conical rod (607) is slidably fitted with a thick rubber ring (6010). The upper and lower ends of the thick rubber ring (6010) abut against the outer sleeve rod (602) and the telescopic sleeve rod (603) respectively. The conical rod (607) passes through the middle of the waist-shaped seat (606). The top of the conical rod (607) is elastically connected to a protective cover (601), and the protective cover (601) is threadedly connected to the concrete base (4).

4. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaic applications according to claim 2, characterized in that: The telescopic sleeve (603) has an irregular groove (6011) in the inner cavity at the top. The irregular groove (6011) is divided into two parts, with the upper part being two centrally symmetrical arc-shaped sliding grooves and the lower part being a straight sliding groove. The conical rod (607) is slidably connected to the irregular groove (6011) through a protrusion (609).

5. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaics according to claim 4, characterized in that: The conical rod (607) has symmetrical vertical grooves (608) on its side wall. The conical rod (607) is slidably engaged with several steel nails (604) through the vertical grooves (608). The steel nails (604) obliquely penetrate the side wall of the telescopic sleeve rod (603), and the outer wall of the steel nails (604) has several limiting grooves (6013).

6. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaics according to claim 5, characterized in that: The telescopic sleeve rod (603) is movably connected to a U-shaped sleeve plate (6012) in the middle. A pair of push blocks (6014) are symmetrically fixed to the top center of the outer sleeve rod (602). Several open slots (6015) are opened at the lower edge of the U-shaped sleeve plate (6012). The steel nail (604) is engaged in the open slot (6015) through the limiting groove (6013). The push block (6014) and the protrusion (609) abut against each other.

7. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaics according to claim 2, characterized in that: The bottom of the telescopic sleeve (603) is slidably connected to a pair of support blocks (605), and a locking bar (6016) is elastically connected to the side of the pair of support blocks (605) that are close to each other. The locking bar (6016) is slidably engaged with the conical rod (607).

8. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaics according to claim 1, characterized in that: The multi-directional locking mechanism (7) includes multiple plastic expansion balls (701) rotatably connected to the middle of the concrete base (4), and the edges of the plastic expansion balls (701) are provided with several arc-shaped cavities (703) at an angle.

9. The dual-axis adjustable photovoltaic panel installation support device suitable for mountain photovoltaics according to claim 8, characterized in that: The plastic expansion ball (701) has a through groove (705) in the middle, and the lower end of the screw (702) is threaded to the middle of the through groove (705), and the screw (702) abuts against the extrusion ball (704).

10. The dual-axis adjustable photovoltaic panel mounting support device suitable for mountain photovoltaic applications according to claim 9, characterized in that: The extrusion ball (704) is slidably connected to both sides of the through groove (705), and the extrusion ball (704) abuts against the concrete base (4).

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