Solar photovoltaic panel support suitable for windy and sandy areas

Abstract

The utility model relates to the technical field of solar photovoltaic systems, in particular to a solar photovoltaic panel support suitable for windy and sandy areas, which comprises an installation platform, a dust cover, a sand blocking assembly and a sand cleaning assembly, and is characterized in that the dust cover is installed at the top of the installation platform, and a solar photovoltaic panel is located in the dust cover; the sand blocking assembly comprises a driven steering cylinder, a pneumatic steering cylinder, a sleeve and a wind direction sensing device, the driven steering cylinder is installed on the outer side of the dust cover, an arc-shaped baffle is arranged at the top of the driven steering cylinder, a wind vane and an empennage which are symmetrically arranged are arranged on the peripheral side of the pneumatic steering cylinder, and the wind direction sensing device is installed at the bottom of the sleeve; according to the technical scheme, the pneumatic steering cylinder capable of automatically rotating according to the wind direction drives the arc-shaped baffle on the driven steering cylinder to move upwards to block wind and sand, and the sand cleaning assembly is matched to guide airflow to blow away dust and sand accumulated on the dustproof cover, so that manpower participation is reduced, and dust and sand accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of solar photovoltaic systems, in particular to a solar photovoltaic panel bracket suitable for sandstorm areas. Background Art

[0002] Solar photovoltaic system refers to the facilities that use the photovoltaic effect of photovoltaic semiconductor materials to convert solar energy into direct current electricity. The core of photovoltaic facilities is solar panels. As countries have been actively promoting the application of renewable energy in recent years, the photovoltaic industry has developed rapidly. At present, when using solar photovoltaic panels for power generation, most of them are fixed on fixed brackets. The north of my country has rich solar energy resources, but the north of my country is relatively dry and there are strong winds and sand in autumn and winter. The accumulation of sand and dust on solar photovoltaic panels will affect their service life and power generation efficiency.

[0003] Chinese patent CN112838825B discloses a windproof and sandproof solar photovoltaic fixed bracket, comprising a base and a solar photovoltaic panel, wherein the upper end of the base is fixedly connected to a support plate, the solar photovoltaic panel is fixedly connected to the upper end of the support plate, a mounting mechanism is provided on the base, an annular transparent sand-proof cover is fixedly connected to the upper end of the mounting mechanism, a slot is provided on the side wall of the mounting mechanism, a fixing mechanism extending into the slot is provided on the base, and a cleaning mechanism opposite to the solar photovoltaic panel is provided on the inner rear side wall of the annular transparent sand-proof cover.

[0004] However, when the anti-sand cover of the equipment is in use, the staff needs to manually unlock the pull block. The installation range of solar photovoltaic brackets is wide, and there are many of them distributed in the same area. The operation of staff unlocking them one by one is very physically demanding and inefficient. At the same time, the equipment is equipped with a vacuum fan to clean the accumulated sand and dust. The vacuum fan is easily affected by sand and dust outdoors, causing damage, which increases maintenance costs. Utility Model Content

[0005] In view of the above problems, a solar photovoltaic panel bracket suitable for windy and sandy areas is provided. A wind-driven steering cylinder that can automatically rotate according to the wind direction drives the arc-shaped baffle on the driven steering cylinder to move upward to block the wind and sand. The sand cleaning component will guide the airflow to blow away the dust accumulated on the dust cover, thereby reducing manpower participation and avoiding the accumulation of dust and sand.

[0006] In order to solve the existing technical problems, the technical solution adopted by the utility model is:

[0007] A solar photovoltaic panel bracket suitable for sandy areas, comprising a mounting platform, a dust cover, a sand retaining assembly and a sand cleaning assembly; the mounting platform is circular, the solar photovoltaic panel is mounted on the top of the mounting platform, a base is arranged at the bottom of the mounting platform, a cavity is arranged inside the base, the upper side of the base mounting platform, a support column is arranged at the bottom of the base to connect the mounting plate, and the mounting plate is fixedly mounted on the ground; the dust cover is circular, the dust cover is mounted on the top of the mounting platform, and the solar photovoltaic panel is located inside the dust cover; the sand retaining assembly comprises a driven steering cylinder, a pneumatic steering cylinder, a sleeve and a wind direction sensing device, the driven steering cylinder is mounted on the outside of the dust cover, an arc-shaped baffle extending upward along the side of the driven steering cylinder is arranged on the top of the driven steering cylinder, and the arc-shaped baffle is semicircular; the pneumatic steering cylinder The steering cylinder is installed on the outside of the base, and the driven steering cylinder is fixedly connected with the pneumatic steering cylinder. The circumferential side of the pneumatic steering cylinder is provided with symmetrically arranged wind vanes and tail wings, and the arc-shaped baffle is arranged on the same side as the wind vane. The pneumatic steering cylinder drives the driven steering cylinder to rotate to the outside of the arc-shaped baffle facing the upwind direction according to the wind direction; the sleeve is coaxially arranged below the pneumatic steering cylinder, and the sleeve is installed on the outside of the supporting column. The wind direction sensing device is installed at the bottom of the sleeve, and the wind direction sensing device detects the wind direction; a sand cleaning component is arranged on the driven steering cylinder, and the sand cleaning component includes multiple air inlet cylinders, which are arranged on the same side as the arc-shaped baffle, and the input end of the air inlet cylinder faces the upwind direction. The air inlet cylinder can guide the upwind wind to remove the sand and dust on the surface of the dust cover; a filter cover is installed at the input end of the air inlet cylinder.

[0008] Preferably, the dust cover, driven steering cylinder and pneumatic steering cylinder are all made of transparent plastic material.

[0009] Preferably, the surface of the filter cover is arranged to be inclined, and the filter cover is inclined from top to bottom toward the installation platform.

[0010] Preferably, a contraction section and an expansion section are provided in the air inlet cylinder, the expansion section is provided at the output end of the air inlet cylinder, and the contraction section is located between the input end and the output end of the air inlet cylinder.

[0011] Preferably, the sand cleaning assembly also includes a cover body, which is installed on the inner side of the arc-shaped baffle, the output end of the air inlet cylinder is located inside the cover body, and a plurality of air outlets are arranged on the side of the cover body facing the axis of the mounting platform, and the output end of the air inlet cylinder is located at the corresponding air outlet; parallel side baffles are arranged on both sides of the air outlet, and sealing plates are hinged on the top of the side baffles, and the hinge axis of the sealing plates is horizontally arranged, and the sealing plates are used to seal the air outlet and the output end of the air inlet cylinder.

[0012] Preferably, a clamping strip is provided on the top of the mounting platform, and the clamping strip is arranged around the axis of the mounting platform; a side strip expanding horizontally along the circumference is provided on the bottom of the dust cover, and the inner wall of the side strip fits the outer side of the clamping strip, and the outer diameter of the side strip is the same as the outer diameter of the mounting platform; a first side groove is provided on the bottom of the driven steering cylinder, and the first side groove surrounds the bottom opening of the driven steering cylinder; a second side groove is provided on the top of the pneumatic steering cylinder, and the second side groove surrounds the top opening of the pneumatic steering cylinder, and the clamping strip and the side strip are installed in the mounting groove formed by the first side groove and the second side groove.

[0013] Preferably, there is a gap between the inner wall of the driven steering cylinder and the outer wall of the dust cover, and a vertically extending mounting strip is provided on the inner wall of the driven steering cylinder. There are multiple mounting strips, and the mounting strips are evenly spaced around the circumference of the driven steering cylinder; a third steel ball is installed on the side of the mounting strip facing the outer wall of the dust cover, and the third steel ball rolls against the outer wall of the dust cover.

[0014] Preferably, an edge banding strip is provided on the driven steering cylinder, which is arranged around the upper opening of the driven steering cylinder, and the bottom of the edge banding strip is in contact with the upper side of the dust cover, and the edge banding strip is used to close the gap between the inner wall of the driven steering cylinder and the outer wall of the dust cover.

[0015] Preferably, a bearing ring is fixedly installed on the circumference of the base, and a plurality of second steel balls are arranged on the bearing ring, and the second steel balls are evenly distributed around the circumference of the bearing ring; a limit strip is arranged on the base, and the limit strip extends around the circumference of the base, and the limit strip limits the bearing ring; there is a gap between the inner wall of the pneumatic steering cylinder and the circumference of the base, and the inner wall of the pneumatic steering cylinder fits the outer wall of the second steel balls.

[0016] Preferably, the sleeve is fixedly installed at the bottom of the pneumatic steering cylinder, a gap is set between the top of the sleeve and the bottom of the base, and a gap is set between the inner wall of the sleeve and the outer wall of the support column; a first mounting groove is set at the bottom of the base, the first mounting groove is set around the axis of the base, and a plurality of first steel balls are set in the first mounting groove, and the first steel balls are attached to the upper side of the sleeve.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model protects the solar photovoltaic panel through a dust cover. The driven steering cylinder and the pneumatic steering cylinder of the sand blocking assembly are respectively sleeved on the outside of the dust cover and the base of the mounting platform. The upper side of the driven steering cylinder is provided with a semicircular arc-shaped baffle. The pneumatic steering cylinder can automatically rotate according to the wind direction to drive the driven steering cylinder to rotate synchronously, so that the outer side of the arc-shaped baffle is aligned with the upwind direction to block the wind and sand. The position of the arc-shaped baffle is adjusted by the pneumatic steering cylinder, so that the utility model does not need to be manually started and can quickly block the wind and sand, thereby improving the protection effect against the wind and sand.

[0019] 2. The utility model detects the rotation of the pneumatic steering cylinder and records the wind direction data through the wind direction sensing device, and uploads it to the data processing module through electronic signals. The staff detects the data of the wind direction sensing device through programming and compares it with the real-time actual wind direction of the area. If a large error is found in the comparison, it proves that the sand retaining component of the equipment is faulty, and maintenance personnel only need to carry out maintenance, which greatly saves manpower.

[0020] 3. In the utility model, the air inlet tube of the sand cleaning component follows the driven steering tube to move to the upwind direction, and the wind is output to the surface of the dust cover through the air inlet tube, so that the dust and sand that may be accumulated on the surface of the dust cover are blown away to avoid affecting the operation of the solar photovoltaic panel. The filter cover filters the dust and sand and other impurities in the wind, thereby ensuring that there are no solid impurities in the air cleaning the surface of the dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram of a solar photovoltaic panel support suitable for windy and sandy areas;

[0022] Figure 2 This is a front view of a solar photovoltaic panel bracket suitable for windy and sandy areas;

[0023] Figure 3 yes Figure 2 A cross-sectional view at AA of FIG.

[0024] Figure 4 yes Figure 3 A partial enlarged view of point B;

[0025] Figure 5 yes Figure 3 A partial enlarged view of point C;

[0026] Figure 6 It is a three-dimensional structure decomposition of a solar photovoltaic panel bracket suitable for windy and sandy areas. Figure 1 ;

[0027] Figure 7 It is a three-dimensional structure decomposition of a solar photovoltaic panel bracket suitable for windy and sandy areas. Figure 2 ;

[0028] Figure 8 It is a stereogram of a mounting platform in a solar photovoltaic panel support suitable for use in windy and sandy areas;

[0029] Fig. 9 yes Figure 8 A partial enlarged view of point D;

[0030] Fig.10 It is a stereogram of a sand retaining component in a solar photovoltaic panel support suitable for use in sandy areas;

[0031] Fig.11 It is a stereogram of a driven steering cylinder in a solar photovoltaic panel support suitable for use in windy and sandy areas;

[0032] Fig.12 yes Fig.11 A local enlarged view of point E;

[0033] Fig.13 The present invention is a stereoscopic diagram of a pneumatic steering cylinder in a solar photovoltaic panel support suitable for use in windy and sandy areas.

[0034] The numbers in the figure are:

[0035] 1-Installation platform;

[0036] 11-base; 111-through hole; 112-limiting strip; 113-first mounting groove; 114-first steel ball;

[0037] 12- support column;

[0038] 13-Mounting plate;

[0039] 14-Card mounting strip;

[0040] 15-bearing ring; 151-second steel ball;

[0041] 2- Dust cover;

[0042] 21-side strip;

[0043] 3-Sand retaining assembly;

[0044] 31-driven steering cylinder; 311-arc baffle; 312-first side groove; 313-mounting strip; 314-third steel ball; 315-edge strip;

[0045] 32- pneumatic steering cylinder; 321- wind vane; 322- tail wing; 323- second side slot;

[0046] 33-sleeve;

[0047] 34- Wind direction sensing device;

[0048] 4-Sand cleaning component;

[0049] 41-air inlet tube; 411-contraction section; 412-expansion section;

[0050] 42- filter cover;

[0051] 43 - cover body; 431 - air outlet; 432 - side baffle; 433 - sealing plate. DETAILED DESCRIPTION

[0052] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] Reference Figures 1 to 13 : A solar photovoltaic panel bracket suitable for windy and sandy areas, comprising a mounting platform 1, a dust cover 2, a sand retaining assembly 3 and a sand cleaning assembly 4; the mounting platform 1 is circular, the solar photovoltaic panel is mounted on the top of the mounting platform 1, a base 11 is arranged at the bottom of the mounting platform 1, a cavity is arranged inside the base 11, the base 11 is connected to the upper side of the mounting platform 1 through a through hole 111 at the top, a support column 12 is arranged at the bottom of the base 11 to connect with a mounting plate 13, and the mounting plate 13 is fixedly mounted on the ground; the dust cover 2 is circular, the dust cover 2 is mounted on the top of the mounting platform 1, and the solar photovoltaic panel is located inside the dust cover 2; the sand retaining assembly 3 comprises a driven steering cylinder 31, a pneumatic steering cylinder 32, a sleeve 33 and a wind direction sensing device 34, the driven steering cylinder 31 is mounted on the outside of the dust cover 2, and an arc-shaped baffle 311 extending upward along the side of the driven steering cylinder 31 is arranged on the top of the driven steering cylinder 31, and the arc-shaped baffle 311 is semicircular; the pneumatic steering The cylinder 32 is installed on the outside of the base 11, the driven steering cylinder 31 is fixedly connected to the pneumatic steering cylinder 32, and the surrounding side of the pneumatic steering cylinder 32 is provided with a symmetrically arranged wind vane 321 and a tail wing 322, and the arc baffle 311 is arranged on the same side as the wind vane 321. The pneumatic steering cylinder 32 drives the driven steering cylinder 31 to rotate to the outside of the arc baffle 311 facing the upwind direction according to the wind direction; the sleeve 33 is coaxially arranged below the pneumatic steering cylinder 32, and the sleeve 33 is installed on the support column 1 2, a wind direction sensing device 34 is installed at the bottom of the sleeve 33, and the wind direction sensing device 34 detects the wind direction; a sand cleaning component 4 is arranged on the driven steering cylinder 31, and the sand cleaning component 4 includes a plurality of air inlet cylinders 41, and the air inlet cylinders 41 are arranged on the same side as the arc-shaped baffle plate 311, and the input end of the air inlet cylinder 41 faces the upwind direction, and the air inlet cylinder 41 can guide the wind in the upwind direction to remove the sand and dust on the surface of the dust cover 2; a filter cover 42 is installed at the input end of the air inlet cylinder 41.

[0054] The mounting platform 1 is used to mount the solar photovoltaic panel. The base 11 at the bottom of the mounting platform 1 is provided with a through hole 111 connected to the mounting platform 1, so that the solar photovoltaic panel can be mounted on the top of the mounting platform 1. The device for driving the solar photovoltaic panel to rotate the angle can be installed in the cavity in the base 11. The base 11 is supported by the support column 12. The mounting plate 13 is fixedly connected to the ground to maintain the stability of the overall photovoltaic panel bracket. The dust cover 2 installed on the top of the mounting platform 1 protects the solar photovoltaic panel to prevent wind and sand from damaging the solar photovoltaic panel. The driven steering cylinder 31 and the wind-driven steering cylinder 32 of the sand-blocking component 3 are respectively mounted on the outside of the dust cover 2 and the base 11 of the mounting platform 1. A semicircular arc-shaped baffle plate 311 is provided on the upper side of the steering cylinder 31. The arc-shaped baffle plate 311 can block the wind and sand to a certain extent. When the wind blows, the wind acts on the tail wing 322 unfolded at one end of the wind-driven steering cylinder 32, thereby driving the wind-driven steering cylinder 32 to rotate. The wind vane 321 points to the upwind end, and the tail wing 322 points to the downwind end. The rotation of the wind-driven steering cylinder 32 drives the driven steering cylinder 31 and the sleeve 33 to rotate synchronously, so that the outer side of the arc-shaped baffle plate 311 is aligned with the upwind direction to block the wind and sand. The position adjustment of the arc-shaped baffle plate 311 driven by the wind-driven steering cylinder 32 allows the utility model to automatically adjust according to the wind direction without manual start-up, thereby improving the protection effect against wind and sand.

[0055] The rotation of the sleeve 33 is detected by the wind direction sensing device 34, which can be a photoelectric wind direction sensor or a contactless sensor such as an ultrasonic wind direction sensor. The wind direction sensing device 34 can record the wind direction data according to the rotation of the pneumatic steering cylinder 32, and upload it to the data processing module through an electronic signal. The staff detects the data of the wind direction sensing device 34 through programming and compares it with the real-time actual wind direction in the area. If a large error appears in the comparison, it proves that the sand retaining component 3 of the equipment has a fault, and the maintenance personnel only need to carry out maintenance, which greatly saves manpower.

[0056] A sand cleaning component 4 is also provided. Since the arc-shaped baffle 311 faces upwind, the air inlet 41 of the sand cleaning component 4 is aimed at the upwind direction. The wind is output to the surface of the dust cover 2 through the air inlet 41, and the dust and sand that may be accumulated on the surface of the dust cover 2 are blown away to avoid affecting the operation of the solar photovoltaic panel. A filter cover 42 is installed at the input end of the air inlet 41 to filter dust and other impurities in the wind, thereby ensuring that there are no solid impurities in the air cleaning the surface of the dust cover 2.

[0057] Reference Figure 1 : The dust cover 2, the driven steering cylinder 31 and the pneumatic steering cylinder 32 are all made of transparent plastic material.

[0058] The dust cover 2, the driven steering cylinder 31 and the pneumatic steering cylinder 32 are all made of transparent plastic material to ensure that they will not affect the solar photovoltaic panel from receiving light. At the same time, the driven steering cylinder 31 and the pneumatic steering cylinder 32 made of plastic material are light in weight and react faster to wind force. When wind blows on the tail wing 322, the pneumatic steering cylinder 32 can quickly drive the driven steering cylinder 31 to rotate and adjust the direction of the arc baffle 311.

[0059] Reference Figures 2 to 4 : The surface of the filter cover 42 is inclined, and the filter cover 42 is inclined from top to bottom toward the installation platform 1.

[0060] The surface of the filter cover 42 is inclined so that when filtering dust and sand, the filtered solid particles fall directly downward to avoid accumulation at the filter cover 42 and affecting the air intake of the air inlet 41.

[0061] Reference Figure 2 , Figure 4 and Fig.10 The air inlet tube 41 is provided with a contraction section 411 and an expansion section 412. The expansion section 412 is provided at the output end of the air inlet tube 41, and the contraction section 411 is located between the input end and the output end of the air inlet tube 41.

[0062] The sand cleaning component 4 also includes a cover body 43, which is installed on the inner side of the arc-shaped baffle plate 311, and the output end of the air inlet tube 41 is located inside the cover body 43. A plurality of air outlets 431 are provided on the side of the cover body 43 facing the axis of the mounting platform 1, and the output end of the air inlet tube 41 is located at the corresponding air outlet 431; parallel side baffle plates 432 are provided on both sides of the air outlet 431, and a sealing plate 433 is hinged on the top of the side baffle plate 432, and the hinge axis of the sealing plate 433 is horizontally arranged, and the sealing plate 433 is used to block the air outlet 431 and the output end of the air inlet tube 41.

[0063] When the air inlet 41 is facing upwind, the air enters the air inlet 41 and moves in the air inlet 41 through the contraction section 411 and the expansion section 412. After passing through the contraction section 411 and the expansion section 412, the flow rate of the air flow is accelerated, thereby achieving a more effective cleaning effect on the surface of the dust cover 2. The air outlet end of each air inlet 41 is located at the air outlet 431 of the cover body 43. When the air flow passes through the air outlet 431, the sealing plate 433 blocking the air outlet 431 is lifted, and an air outlet opening is formed between the air outlet 431 and the side baffles 432 on both sides of the air outlet 431. The air flow flows along the surface of the dust cover 2 through the secondary opening to blow off the dust and sand accumulated on the surface of the dust cover 2. The air inlet 41 has multiple air flows in different directions that converge together to improve the effect of blowing away the dust and sand. The sealing plate 433 can only rotate in one direction to open the air outlet 431, thereby preventing dust and sand from entering the air inlet 41 through the air outlet 431 due to wind force.

[0064] Refer to 4. Figures 6 to 13 : A clamping strip 14 is arranged on the top of the mounting platform 1, and the clamping strip 14 is arranged around the axis of the mounting platform 1; a side strip 21 horizontally expanding along the circumference is arranged on the bottom of the dust cover 2, and the inner wall of the side strip 21 fits the outer side of the clamping strip 14, and the outer diameter of the side strip 21 is the same as the outer diameter of the mounting platform 1; a first side groove 312 is arranged on the bottom of the driven steering cylinder 31, and the first side groove 312 surrounds the bottom opening of the driven steering cylinder 31, and a second side groove 323 is arranged on the top of the pneumatic steering cylinder 32, and the second side groove 323 surrounds the top opening of the pneumatic steering cylinder 32, and the clamping strip 14 and the side strip 21 are installed in the mounting groove formed by the first side groove 312 and the second side groove 323.

[0065] When the dust cover 2 is installed on the top of the mounting platform 1, the inner wall of the dust cover 2 fits the outer wall of the clamping strip 14, and the dust cover 2 is positioned by the clamping strip 14 to ensure that the axis of the dust cover 2 and the axis of the mounting platform 1 are in the same straight line, and the outer diameter of the mounting platform 1 is consistent with the outer diameter of the side strip 21 of the dust cover 2, so that after the dust cover 2 and the mounting platform 1 are installed, they can fit tightly into the installation groove formed by the first side groove 312 at the bottom of the driven steering cylinder 31 and the second side groove 323 at the top of the pneumatic steering cylinder 32, ensuring that fine particles in the external environment cannot enter the interior of the dust cover 2 from the installation position of the driven steering cylinder 31 and the pneumatic steering cylinder 32 and the installation position of the dust cover 2 and the mounting platform 1.

[0066] Reference Figures 2 to 4 : There is a gap between the inner wall of the driven steering cylinder 31 and the outer wall of the dust cover 2. A vertically extending mounting strip 313 is provided on the inner wall of the driven steering cylinder 31. There are multiple mounting strips 313, and the mounting strips 313 are evenly spaced around the circumference of the driven steering cylinder 31. A third steel ball 314 is installed on the side of the mounting strip 313 facing the outer wall of the dust cover 2, and the third steel ball 314 rolls against the outer wall of the dust cover 2.

[0067] There is a certain gap between the inner wall of the driven steering cylinder 31 and the outer wall of the dust cover 2 to avoid sliding friction between the driven steering cylinder 31 and the dust cover 2 when the driven steering cylinder 31 rotates. The driven steering cylinder 31 contacts the outer wall of the dust cover 2 through the third steel ball 314 installed in the mounting strip 313 arranged on the inner wall, which not only ensures that the axes of the driven steering cylinder 31 and the dust cover 2 are in the same straight line, but also converts the sliding friction at the contact position between the driven steering cylinder 31 and the dust cover 2 into rolling friction, so that the resistance of the driven steering cylinder 31 during rotation is smaller, and it is more convenient for the position of the arc baffle 311 to follow the adjustment of the pneumatic steering cylinder 32.

[0068] Reference Figure 6 , Figure 7 , Fig.10 and Fig.11: An edge strip 315 is provided on the driven steering cylinder 31. The edge strip 315 is arranged around the upper opening of the driven steering cylinder 31. The bottom of the edge strip 315 is in contact with the upper side of the dust cover 2. The edge strip 315 is used to close the gap between the inner wall of the driven steering cylinder 31 and the outer wall of the dust cover 2.

[0069] Due to the existence of the mounting strip 313, there is a gap between the driven steering cylinder 31 and the outer wall of the dust cover 2. The edge sealing strip 315 surrounding the top of the driven steering cylinder 31 blocks the gap. The edge sealing strip 315 can prevent dust and sand from entering between the driven steering cylinder 31 and the dust cover 2 to hinder the rotation of the driven steering cylinder 31.

[0070] Reference Figures 5 to 9 : A bearing ring 15 is fixedly installed on the circumference of the base 11, and a plurality of second steel balls 151 are arranged on the bearing ring 15, and the second steel balls 151 are evenly distributed around the circumference of the bearing ring 15; a limit strip 112 is provided on the base 11, and the limit strip 112 extends around the circumference of the base 11, and the limit strip 112 limits the bearing ring 15; there is a gap between the inner wall of the pneumatic steering cylinder 32 and the circumference of the base 11, and the inner wall of the pneumatic steering cylinder 32 fits the outer wall of the second steel balls 151.

[0071] The pneumatic steering cylinder 32 is installed on the outside of the base 11. There is a certain gap between the pneumatic steering cylinder 32 and the surrounding side of the base 11 so that the pneumatic steering cylinder 32 does not directly contact the base 11 to generate friction when rotating. The bearing ring 15 is fixedly installed on the outside of the base 11. The second steel ball 151 arranged on the bearing ring 15 fits the inner wall of the pneumatic steering cylinder 32, which not only keeps the axis of the pneumatic steering cylinder 32 and the axis of the base 11 in the same straight line, but also can convert the sliding friction force at the contact position between the pneumatic steering cylinder 32 and the base 11 into rolling friction force, so that the pneumatic steering cylinder 32 has less resistance when rotating, and it is more convenient to rotate following the wind direction.

[0072] Reference Figure 5 : The sleeve 33 is fixedly installed at the bottom of the pneumatic steering cylinder 32, a gap is set between the top of the sleeve 33 and the bottom of the base 11, and a gap is set between the inner wall of the sleeve 33 and the outer wall of the support column 12; a first mounting groove 113 is set at the bottom of the base 11, and the first mounting groove 113 is set around the axis of the base 11. A plurality of first steel balls 114 are set in the first mounting groove 113, and the first steel balls 114 are attached to the upper side of the sleeve 33.

[0073] The bottom of the pneumatic steering cylinder 32 is connected to the sleeve 33, and the sleeve 33 is driven by the pneumatic steering cylinder 32 to rotate. In order to reduce the influence of the sleeve 33 on the rotation of the pneumatic steering cylinder 32, a gap is set between the inner wall of the sleeve 33 and the support column 12 to prevent the sleeve 33 from contacting the outer wall of the support column 12 and causing friction when rotating. The contact between the sleeve 33 and the bottom of the base 11 can limit the pneumatic steering cylinder 32, and the edge banding strip 315 fits the top of the dust cover 2 to fix the position of the driven steering cylinder 31 and the pneumatic steering cylinder 32 in the axial direction. The sleeve 33 contacts the first steel ball 114 in the first mounting groove 113 at the bottom of the base 11, thereby converting the sliding friction between the sleeve 33 and the bottom of the base 11 into rolling friction, which makes it easier for the pneumatic steering cylinder 32 to move with the wind direction.

[0074] The above embodiments only express one or several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A solar photovoltaic panel bracket suitable for sandy areas, characterized in that: It comprises a mounting platform (1), a dust cover (2), a sand retaining assembly (3) and a sand clearing assembly (4); The mounting platform (1) is circular, the solar photovoltaic panel is mounted on the top of the mounting platform (1), a base (11) is arranged at the bottom of the mounting platform (1), the base (11) has a cavity inside, the base (11) is mounted on the upper side of the mounting platform (1), a support column (12) is arranged at the bottom of the base (11) and connected to the mounting plate (13), and the mounting plate (13) is fixedly mounted on the ground; The dust cover (2) is circular in shape, and is mounted on the top of the mounting platform (1), and the solar photovoltaic panel is located inside the dust cover (2); The sand blocking assembly (3) comprises a driven steering cylinder (31), a pneumatic steering cylinder (32), a sleeve (33) and a wind direction sensing device (34); the driven steering cylinder (31) is mounted on the outside of the dust cover (2); a curved baffle plate (311) extending upward along the side of the driven steering cylinder (31) is arranged on the top of the driven steering cylinder (31); the curved baffle plate (311) is semicircular; The pneumatic steering cylinder (32) is mounted on the outside of the base (11); the driven steering cylinder (31) is fixedly connected to the pneumatic steering cylinder (32); a symmetrically arranged wind vane (321) and a tail wing (322) are arranged on the periphery of the pneumatic steering cylinder (32); the arc-shaped baffle plate (311) and the wind vane (321) are arranged on the same side; the pneumatic steering cylinder (32) drives the driven steering cylinder (31) to rotate according to the wind direction until the outside of the arc-shaped baffle plate (311) faces the upwind direction; The sleeve (33) is coaxially arranged below the pneumatic steering cylinder (32), the sleeve (33) is installed outside the support column (12), the wind direction sensing device (34) is installed at the bottom of the sleeve (33), and the wind direction sensing device (34) detects the wind direction; A sand-clearing assembly (4) is provided on the driven steering cylinder (31), and the sand-clearing assembly (4) comprises a plurality of air inlet cylinders (41), the air inlet cylinders (41) being provided on the same side as the arc-shaped baffle plate (311), the input end of the air inlet cylinders (41) facing upwind, and the air inlet cylinders (41) being capable of guiding wind in the upwind direction to clear sand and dust on the surface of the dust cover (2); A filter cover (42) is installed at the input end of the air inlet cylinder (41).

2. A solar photovoltaic panel support suitable for sandy areas according to claim 1, characterized in that: The dust cover (2), the driven steering cylinder (31) and the pneumatic steering cylinder (32) are all made of transparent plastic material.

3. A solar photovoltaic panel support suitable for sandy areas according to claim 1, characterized in that: The surface of the filter cover (42) is arranged to be inclined, and the filter cover (42) is inclined from top to bottom toward the installation platform (1).

4. The solar photovoltaic panel support suitable for sandy areas according to claim 1, characterized in that: A contraction section (411) and an expansion section (412) are provided in the air inlet cylinder (41); the expansion section (412) is provided at the output end of the air inlet cylinder (41); and the contraction section (411) is located between the input end and the output end of the air inlet cylinder (41).

5. A solar photovoltaic panel support suitable for sandy areas according to claim 4, characterized in that: The sand cleaning component (4) further comprises a cover body (43), the cover body (43) being mounted on the inner side of the arc-shaped baffle (311), the output end of the air inlet cylinder (41) being located inside the cover body (43), a plurality of air outlets (431) being arranged on one side of the cover body (43) facing the axis of the mounting platform (1), and the output end of the air inlet cylinder (41) being located at the corresponding air outlets (431); Parallel side baffles (432) are arranged on both sides of the air outlet (431), a sealing plate (433) is hinged on the top of the side baffle (432), the hinge axis of the sealing plate (433) is arranged horizontally, and the sealing plate (433) is used to block the air outlet (431) and the output end of the air inlet tube (41).

6. The solar photovoltaic panel support suitable for sandy areas according to claim 1, characterized in that: A clamping strip (14) is arranged on the top of the installation platform (1), and the clamping strip (14) is arranged around the axis of the installation platform (1); The bottom of the dust cover (2) is provided with a side strip (21) that expands horizontally along the circumference, the inner wall of the side strip (21) fits the outer side of the clamping strip (14), and the outer diameter of the side strip (21) is the same as the outer diameter of the mounting platform (1); A first side groove (312) is provided at the bottom of the driven steering cylinder (31), and the first side groove (312) surrounds the bottom opening of the driven steering cylinder (31). A second side groove (323) is provided at the top of the pneumatic steering cylinder (32), and the second side groove (323) surrounds the top opening of the pneumatic steering cylinder (32). The clamping strip (14) and the side strip (21) are installed in the installation groove formed by the first side groove (312) and the second side groove (323).

7. A solar photovoltaic panel support suitable for sandy areas according to claim 6, characterized in that: There is a gap between the inner wall of the driven steering cylinder (31) and the outer wall of the dust cover (2), and the inner wall of the driven steering cylinder (31) is provided with a vertically extending mounting bar (313), and there are a plurality of mounting bars (313), which are evenly spaced and distributed around the circumference of the driven steering cylinder (31); A third steel ball (314) is installed on one side of the installation strip (313) facing the outer wall of the dust cover (2), and the third steel ball (314) rolls in contact with the outer wall of the dust cover (2).

8. The solar photovoltaic panel support suitable for sandy areas according to claim 7, characterized in that: An edge sealing strip (315) is provided on the driven steering cylinder (31), the edge sealing strip (315) is arranged around the upper opening of the driven steering cylinder (31), the bottom of the edge sealing strip (315) is in contact with the upper side of the dust cover (2), and the edge sealing strip (315) is used to close the gap between the inner wall of the driven steering cylinder (31) and the outer wall of the dust cover (2).

9. A solar photovoltaic panel support suitable for sandy areas according to claim 8, characterized in that: A bearing ring (15) is fixedly mounted on the circumference of the base (11), a plurality of second steel balls (151) are arranged on the bearing ring (15), and the second steel balls (151) are distributed at equal intervals around the circumference of the bearing ring (15); The base (11) is provided with a limit strip (112), the limit strip (112) extends around the circumference of the base (11), and the limit strip (112) limits the bearing ring (15); There is a gap between the inner wall of the pneumatic steering cylinder (32) and the peripheral side of the base (11), and the inner wall of the pneumatic steering cylinder (32) fits the outer wall of the second steel ball (151).

10. A solar photovoltaic panel support suitable for sandy areas according to claim 9, characterized in that: The sleeve (33) is fixedly mounted on the bottom of the pneumatic steering cylinder (32), a gap is provided between the top of the sleeve (33) and the bottom of the base (11), and a gap is provided between the inner wall of the sleeve (33) and the outer wall of the support column (12); A first installation groove (113) is provided at the bottom of the base (11), the first installation groove (113) is arranged around the axis of the base (11), a plurality of first steel balls (114) are arranged in the first installation groove (113), and the first steel balls (114) are fitted on the upper side of the sleeve (33).

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