A roof clamp for color steel tile roof photovoltaic support

Abstract

The present application relates to a kind of roof clamps for color steel tile roof photovoltaic support, belong to photovoltaic support accessory technical field, including top plate, width adjusting mechanism is linked two sides side clamping plate synchronous translation by bidirectional threaded rod, to adapt the width of different color steel tile roof peak;Angle adjusting mechanism is driven by rotating adjusting screw rod and makes side clamping plate multi-angle deflection, so that clamping plate is attached to roof peak slope;Connecting mechanism utilizes limit block and clamping hole to complete support plate quick pre-positioning, and support plate is directly used as the load-bearing base of photovoltaic longitudinal main beam;Protection mechanism can be followed with the deflection angle of side clamping plate and adaptively open and close.The present application adapts to a variety of peak height, slope angle color steel tile, side clamping plate is equipped with antiskid pad and fixed bolt to form double antiskid shift limit, protection structure blocks rainwater condensate, reduces threaded part corrosion failure, support plate can be individually disassembled, maintenance does not need to release clamp and roof peak locking, effectively reduce the later maintenance cost of roof photovoltaic system.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic bracket accessories technology, specifically to a roof clamp for photovoltaic brackets on color steel tile roofs. Background Technology

[0002] Currently, when installing photovoltaic modules on corrugated steel roofs, special roof clamps are commonly used to fix the photovoltaic brackets to the roof peaks. Conventional clamps on the market mainly consist of a top plate, two side clamping plates, and a top load-bearing component. They rely on a single screw rod to synchronously adjust the distance between the two side clamping plates to match the width of the roof peaks. The clamping plates and the top plate adopt a fixed hinge structure, which can only accommodate corrugated steel roof tiles with a single slope angle. Generally, no protective components are installed on the outside of the clamps. The photovoltaic main beam load-bearing component and the top plate are usually fixed by multiple sets of independent bolts locked point by point.

[0003] Existing clamping plates lack an angle-adaptive adjustment structure, making them unsuitable for corrugated steel roofs with varying peak heights and slope inclinations, resulting in poor clamping and fit. Threaded fasteners are directly exposed to the roof environment, making them susceptible to corrosion and jamming from rainwater and condensation, leading to significant maintenance workload. Disassembly and assembly of the support plates bearing the main beam requires the removal of all fixing bolts, and maintenance of the photovoltaic bracket necessitates simultaneously releasing the locking structure between the clamps and the corrugated steel roof, resulting in cumbersome disassembly and assembly procedures and low construction efficiency. Furthermore, the clamping plates rely solely on surface compression for positioning, making them prone to slippage under wind force and thermal expansion and contraction, resulting in insufficient stability. Therefore, there is an urgent need to design a roof clamping system for photovoltaic brackets on corrugated steel roofs to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a roof clamp for photovoltaic brackets on color steel tile roofs, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A roof clamp for photovoltaic support on color steel tile roofs includes a top plate. The surface of the top plate is provided with a width adjustment mechanism, which includes a bidirectional threaded rod, a threaded block, and a side clamp. The side clamp is driven to produce horizontal displacement through the threaded engagement between the bidirectional threaded rod and the threaded block. An angle adjustment mechanism includes a rotating adjustment screw, a slide block, and a slide rail. The rotating adjustment screw drives the slide block to slide along the slide rail and drives the side clamping plate to deflect. The connecting mechanism includes a limiting block, a support plate, and a snap-fit ​​hole, which completes the positioning of the support plate through the cooperation of the limiting block and the snap-fit ​​hole; The protective mechanism includes a side protective cover, a connecting block, a slide groove, and a top protective cover. The side protective cover drives the connecting block to slide along the slide groove to match the position of the top protective cover.

[0006] Preferably, a knob is provided in the middle of the top plate, and the output end of the knob is coaxially fixed to the driving gear of the bevel gear set. The driven gear of the bevel gear set is fixed to the middle of the bidirectional threaded rod. The bidirectional threaded rod is horizontally mounted along the top plate, and the two ends of the rod are respectively machined with external threads of opposite directions. Two threaded blocks are respectively threaded onto the opposite threaded sections at both ends of the bidirectional threaded rod. The top of the side clamping plate and the bottom of the threaded block form a rotatable connection. When the bidirectional threaded rod rotates, the two sets of threaded blocks drive the two side clamping plates to move synchronously towards or away from each other.

[0007] Preferably, the top plate has symmetrical vertical threaded through holes at both ends, and the rotating adjusting screw is vertically screwed into the threaded through hole. The bottom end of each rotating adjusting screw is rotatably connected to a rotating block, and the rotating block is rotatably connected to the slide block. The slide rail is opened along the outer wall of the side clamping plate, and the slide block is embedded in the slide rail and can only slide horizontally along the length of the slide rail. The side clamping plate has a through threaded hole, and the threaded hole is threaded with a first fixing bolt.

[0008] Preferably, two sets of limiting blocks are fixed at intervals on the upper surface of the top plate, and the top of the two sets of limiting blocks are provided with fixing threaded holes; the support plate is a double parallel long strip plate, and the snap-fit ​​holes are respectively opened at both ends of the support plate. The inner contour of the snap-fit ​​hole matches the outer contour of the limiting block to achieve the pre-positioning of the support plate. The second fixing bolt passes through the support plate from top to bottom and is screwed into the fixing threaded hole to lock and fix the support plate above the top plate.

[0009] Preferably, the side protective cover is vertically fixed to the outer wall of the side clamp, and the sliding plate is slidably mounted on the side edge of the side protective cover. The sliding plate can slide up and down along the side protective cover, and pulling the sliding plate upward can open the operation channel reserved on the side of the side protective cover. The connecting block extends outward and is formed on both sides of the top of the side protective cover. The slide groove is opened on both sides of the bottom surface of the top protective cover along the length direction. The connecting block is slidably embedded in the slide groove. During the process of the side clamp driving the side protective cover to deflect, the connecting block slides along the slide groove, and the vertical coverage height of the top protective cover is adjusted synchronously.

[0010] Preferably, the anti-slip pad is integrally fitted and fixed to the inner side plate of the side clamp facing the central axis of the clamp. The anti-slip pad completely covers the clamping area where the side clamp contacts the slope of the corrugated steel tile. The outer surface of the anti-slip pad is covered with dense convex and concave anti-slip textures to increase the contact friction between the side clamp and the corrugated steel tile.

[0011] Preferably, the support plate is installed across the space above the top plate, and the overall length of the support plate is greater than the total horizontal length of the top plate. The two parallel strips of the support plate are connected by multiple horizontal connecting plates in one piece. The top surface of the support plate is a flat bearing plane, which can be directly connected to the longitudinal main beam of the photovoltaic bracket without the need for additional adapter accessories.

[0012] Preferably, the two side protective covers, two sliding plates, and the top protective cover are spliced ​​together to form a semi-enclosed protective cavity. The cavity completely accommodates all the metal threaded parts of the knob, rotating adjustment screw, and second fixing bolt exposed on the top surface of the top plate. After the sliding plate slides down, it blocks the side channel of the protective cavity, preventing external rainwater and roof condensate from directly contacting the threaded connection parts.

[0013] Preferably, the slide rail is configured as a long strip with an inner groove structure, the cross-sectional profile of the slide block is perfectly matched with the cross-sectional profile of the inner groove of the slide rail, and only a horizontal sliding gap is reserved between the slide block and the slide rail groove wall. The slide block cannot be dislodged from the inside of the slide rail vertically, and the slide block and the slide rail maintain a sliding engagement state throughout the entire process of the side clamp deflection operation.

[0014] Preferably, the reverse thread sections at both ends of the bidirectional threaded rod have the same pitch and tooth profile. When the knob drives the bidirectional threaded rod to rotate at any angle, the left and right threaded blocks move along the rod body with the same stroke. The side clamps on both sides always maintain symmetrical and synchronous movement with the central axis of the top plate as the reference.

[0015] In the above technical solution, the roof clamp for photovoltaic support on color steel tile roofs provided by the present invention has the following beneficial effects: (1) This device is equipped with two independent adjustment structures: a width adjustment mechanism and an angle adjustment mechanism. The width of the two side clamps is adjusted synchronously by a two-way threaded rod. The side clamps can be rotated at multiple angles by rotating the adjustment screw in conjunction with the slide block and slide rail. It can match conventional color steel tile types with different peak heights and different slope inclinations. Anti-slip pads are added to the inside of the side clamps. With the first fixing bolt through the locking structure, the double limit prevents the clamps from slipping or loosening due to wind force and thermal expansion and contraction, thus improving the overall installation firmness of the photovoltaic roof and making it more applicable to a wider range of scenarios.

[0016] (2) The protective mechanism is composed of a side protective cover, a sliding plate and a top protective cover. It can open and close adaptively with the adjustment angle of the side clamp, and completely cover the exposed metal threaded connectors such as the knob, the rotating adjustment screw and the second fixing bolt. It can isolate rainwater, dew and roof condensate from directly immersing the metal threaded parts, greatly reducing the probability of bolt and thread rod corrosion, jamming and stripping failures. It eliminates the need for frequent maintenance and replacement of rusted fasteners, and reduces the workload and material loss of the roof photovoltaic system in the later stage of operation and maintenance.

[0017] (3) The fixture is divided into three independent modules: clamping body, protective mechanism and connecting mechanism. The assembly of each module is free from interference: clamping and fixing operation, protective cover assembly and photovoltaic support plate installation can be completed step by step and can be operated by a single person; the support plate is quickly disassembled and assembled through snap-fit ​​holes and second fixing bolts. The support plate is a long strip bearing structure that can be directly connected to the longitudinal main beam of the photovoltaic bracket without the need for additional adapter accessories. The structure has a high degree of integration. The photovoltaic bearing support plate can be disassembled separately during disassembly and maintenance without disassembling the locking structure between the fixture and the color steel tile, which makes the disassembly and assembly operation more efficient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the external three-dimensional structure of an embodiment of a roof clamp for a photovoltaic support for a color steel tile roof according to the present invention.

[0020] Figure 2 for Figure 1 The enlarged structural diagram at point A is shown.

[0021] Figure 3 This is a schematic diagram of the support plate and snap-fit ​​hole connection structure provided in an embodiment of the roof clamp for photovoltaic brackets on color steel tile roofs according to the present invention.

[0022] Figure 4 This is a schematic diagram of the internal structure of the protective mechanism provided in an embodiment of the roof clamp for a photovoltaic bracket on a color steel tile roof according to the present invention.

[0023] Figure 5 This is a schematic diagram of the connection structure of the width adjustment mechanism, angle adjustment mechanism, and connection mechanism provided in an embodiment of the roof clamp for a photovoltaic bracket on a color steel tile roof according to the present invention.

[0024] Figure 6 for Figure 5 Schematic diagram of the structure below the side.

[0025] 1. Top plate; 2. Width adjustment mechanism; 21. Two-way threaded rod; 22. Bevel gear set; 23. Knob; 24. Threaded block; 25. Side clamping plate; 26. Anti-slip pad; 3. Angle adjustment mechanism; 31. Rotation adjustment screw; 32. Rotating block; 33. Slide seat; 34. Slide rail; 35. First fixing bolt; 4. Connecting mechanism; 41. Limiting block; 42. Fixing threaded hole; 43. Support plate; 44. Snap-fit ​​hole; 45. Second fixing bolt; 5. Protective mechanism; 51. Side protective cover; 52. Sliding plate; 53. Connecting block; 54. Top protective cover; 55. Slide groove. Detailed Implementation

[0026] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0027] like Figure 1-6As shown in the figure, the roof clamp for photovoltaic support for color steel tile roof provided by the embodiment of the present invention includes a top plate 1. The surface of the top plate 1 is provided with a width adjustment mechanism 2, which includes a bidirectional threaded rod 21, a threaded block 24, and a side clamping plate 25. The side clamping plate 25 is driven to produce horizontal displacement through the threaded engagement between the bidirectional threaded rod 21 and the threaded block 24. Angle adjustment mechanism 3 includes a rotating adjustment screw 31, a slide block 33, and a slide rail 34. The rotating adjustment screw 31 drives the slide block 33 to slide along the slide rail 34 and drives the side clamping plate 25 to deflect. The connecting mechanism 4 includes a limiting block 41, a support plate 43, and a snap-fit ​​hole 44, which completes the positioning of the support plate 43 through the cooperation of the limiting block 41 and the snap-fit ​​hole 44. The protective mechanism 5 includes a side protective cover 51, a connecting block 53, a slide groove 55, and a top protective cover 54. The side protective cover 51 drives the connecting block 53 to slide along the slide groove 55 to match the position of the top protective cover 54.

[0028] The top plate 1 is the basic load-bearing component of this fixture. It is a hollow rectangular plate with a hollow cavity to accommodate the transmission components of the width adjustment mechanism. Various assembly positioning slots and through holes are reserved on the plate surface. The bidirectional threaded rod 21 is a cylindrical rod with M8 external threads of opposite directions machined at both ends, with a pitch of 1.25mm. The threaded block 24 is a square metal block with a threaded through hole in the center to match the threaded rod. Each bidirectional threaded rod 21 is matched with two threaded blocks 24. The side clamping plate 25 is a vertical folding plate, symmetrically arranged on both sides below the top plate 1. When the bidirectional threaded rod 21 rotates, the threaded blocks 24 are driven to move synchronously by the forward and reverse threads, which drives the side clamping plate 25 to move horizontally to accommodate different peak widths. The top plate 1 has vertical threaded through holes at both ends for the rotation adjustment screw 31 to pass through, and the slide rail 34... Vertically mounted on the outer wall of the side clamping plate 25, the slide block 33 can slide laterally by engaging with the slide rail 34; turning the adjusting screw 31 drives the slide block 33 to rise and fall, and the slide block 33 simultaneously pulls the side clamping plate 25 to deflect around the connection point of the threaded block 24 as the axis, adapting to different slope angles of the roof peaks; the limiting block 41 is a square boss fixed to the top surface of the top plate 1, and the support plate 43 is a double parallel long strip plate with snap-fit ​​holes 44 at both ends that match the shape of the limiting block 41. The snap-fit ​​completes the pre-positioning of the support plate 43, and the support plate 43 directly serves as the load-bearing base of the photovoltaic main beam; the side protective cover 51 is fixed to the outside of the side clamping plate 25, and the top is integrally formed with a connecting block 53. The top protective cover 54 has grooves 55 on both sides to accommodate the sliding of the connecting block 53; when the side clamping plate 25 deflects, the connecting block 53 slides along the grooves 55, adaptively adjusting the height of the top protective cover 54, completely covering the exposed metal threaded parts to isolate water vapor corrosion.

[0029] A knob 23 is provided in the middle of the top plate 1. The output end of the knob 23 is coaxially fixed to the driving gear of the bevel gear set 22. The driven gear of the bevel gear set 22 is fixed to the middle of the body of the bidirectional threaded rod 21. The bidirectional threaded rod 21 is horizontally mounted along the top plate 1. The two ends of the rod are machined with external threads of opposite directions. Two threaded blocks 24 are respectively threaded onto the opposite threaded sections at both ends of the bidirectional threaded rod 21. The top of the side clamping plate 25 is rotatably connected to the bottom of the threaded block 24. When the bidirectional threaded rod 21 rotates, the two sets of threaded blocks 24 drive the two side clamping plates 25 to move synchronously towards or away from each other.

[0030] The knob 23 is located in the middle of the top surface of the top plate 1. The bottom drive shaft is coaxially fixed with the active bevel gear of the bevel gear set 22. The driven bevel gear is fixed to the middle of the body of the bidirectional threaded rod 21. Rotating the knob 23 horizontally can drive the horizontally mounted bidirectional threaded rod 21 to rotate. The effective length of the two reverse threads on the left and right sides of the bidirectional threaded rod 21 is 100mm. Two threaded blocks 24 are respectively assembled on the two threaded sections. The top of the side clamping plate 25 is provided with a hinge seat. The bottom of the threaded block 24 is rotatably connected to the hinge seat through a pin. When the threaded block 24 moves horizontally, it can rotate relative to the side clamping plate 25 without restricting the subsequent angle deflection of the side clamping plate 25. Rotating the knob 23 clockwise causes the threaded blocks 24 on both sides to close towards each other and the side clamping plate 25 to simultaneously close inward to the roof peak. Rotating the knob 23 counterclockwise causes the threaded blocks 24 to open away from each other and the side clamping plate 25 to simultaneously expand outward, completing the stepless adjustment of the clamping width. The thread specifications at both ends are uniform, the moving stroke of the side clamping plates 25 on both sides is consistent, and the clamping force is always symmetrical.

[0031] The top plate 1 has symmetrical vertical threaded through holes at both ends. Rotary adjusting screws 31 are vertically screwed into the threaded through holes. The bottom end of each rotating adjusting screw 31 is rotatably connected to a rotating block 32. The rotating block 32 is rotatably connected to a slide block 33. The slide rail 34 is opened along the outer wall of the side clamping plate 25. The slide block 33 is embedded in the slide rail 34 and can only slide horizontally along the length of the slide rail 34. The side clamping plate 25 has a through threaded hole. The threaded hole is threaded with a first fixing bolt 35.

[0032] M10 vertical threaded through holes are opened at both ends of the top plate 1. The rotating adjusting screw 31 is screwed into the through hole. The top of the rotating adjusting screw 31 is equipped with a hexagonal screw head, and the bottom end is hinged to the rotating block 32 through a pin. The rotating block 32 is integrally formed with the slide block 33 and moves up and down synchronously with the rotating adjusting screw 31. The slide rail 34 is a rectangular inner groove. The cross section of the slide block 33 is completely fitted with the groove body and can only slide horizontally along the groove body. The upper and lower groove edges form a vertical limit, and the slide block 33 cannot be dislodged from the slide rail 34 throughout the entire process. The lower part of the side clamping plate 25 is opened with a transverse through threaded hole matching the first M6 fixing bolt 35. After the sliding plate 52 is pulled up to expose the threaded hole, the first fixing bolt 35 is screwed in and drilled into the color steel tile plate. The through-type locking structure prevents the clamp from slipping and loosening.

[0033] Two sets of limiting blocks 41 are fixed at intervals on the upper surface of the top plate 1. The top of the two sets of limiting blocks 41 is provided with fixing threaded holes 42. The support plate 43 is a double parallel long strip plate. The snap-fit ​​holes 44 are respectively opened at both ends of the support plate 43. The inner contour of the snap-fit ​​hole 44 matches the outer contour of the limiting block 41 to achieve the pre-positioning of the support plate 43. The second fixing bolt 45 passes through the support plate 43 from top to bottom and is screwed into the fixing threaded hole 42 to lock and fix the support plate 43 above the top plate 1.

[0034] Two sets of square limiting blocks 41 are spaced apart on the top surface of the top plate 1, and M8-sized fixing threaded holes 42 are opened between the two sets of limiting blocks 41. The support plate 43 is formed by welding two parallel long aluminum plates and four horizontal connecting plates, which can span two sets of clamps. Square snap-fit ​​holes 44 are opened at both ends of the plate body 1, which are precisely matched with the shape of the limiting blocks 41. The support plate 43 can be placed downward to complete the pre-positioning. After pre-positioning, the M8-sized second fixing bolt 45 is screwed from top to bottom through the through hole of the support plate 43 into the fixing threaded hole 42 of the top plate 1. After locking, the support plate 43 forms a flat bearing plane, and the photovoltaic C-shaped steel and U-shaped steel main beams can be directly overlapped and fixed without additional adapter accessories. When inspecting the photovoltaic bracket, only the second fixing bolt 45 needs to be removed to remove the support plate 43, without disassembling the clamps and the color steel tile locking structure.

[0035] The side protective cover 51 is vertically fixed to the outer wall of the side clamp 25. The sliding plate 52 is slidably mounted on the side edge of the side protective cover 51. The sliding plate 52 can slide up and down along the side protective cover 51. Pulling the sliding plate 52 upward can open the operation channel reserved on the side of the side protective cover 51. The connecting block 53 extends outward and is formed on both sides of the top of the side protective cover 51. The slide groove 55 is opened on both sides of the bottom surface of the top protective cover 54 along the length direction. The connecting block 53 is slidably embedded in the slide groove 55. During the process of the side clamp 25 driving the side protective cover 51 to deflect, the connecting block 53 slides along the slide groove 55, and the vertical coverage height of the top protective cover 54 is adjusted synchronously.

[0036] The side protective cover 51 is a bent sheet metal part, which is vertically fixed to the outside of the side clamping plate 25. A vertical through groove is opened on the side edge of the side protective cover 51, and the side slide strip of the sliding plate 52 is embedded in the groove to realize vertical sliding assembly. Pulling the sliding plate 52 upward can open the side operation channel, which is convenient for disassembling and assembling the first fixing bolt 35. After the locking operation is completed, the sliding plate 52 is lowered to close the side channel of the protective cavity. Rectangular connecting blocks 53 extend horizontally on both sides of the top of the side protective cover 51, and the bottom surface of the top protective cover 54 has a sliding groove 55 to accommodate the connecting blocks 53. When the side clamping plate 25 drives the side protective cover 51 to deflect, the connecting blocks 53 slide along the sliding groove 55, automatically matching the coverage height of the top protective cover 54, and can completely cover the fasteners above the top plate 1 under any clamping angle.

[0037] The anti-slip pad 26 is fixedly attached to the inner side of the side clamping plate 25 facing the central axis of the clamp. The anti-slip pad 26 completely covers the clamping area where the side clamping plate 25 contacts the slope of the corrugated steel tile. The outer surface of the anti-slip pad 26 is covered with dense convex and concave anti-slip textures to increase the contact friction between the side clamping plate 25 and the corrugated steel tile.

[0038] The anti-slip mat 26 is made of 3mm thick EPDM rubber and is completely bonded to the inner side of the side clamp 25 facing the center of the clamp with high-temperature resistant structural adhesive, completely covering the contact area of ​​the roof tiles. The surface of the anti-slip mat 26 is integrally formed with hemispherical anti-slip protrusions with a diameter of 2mm and a height of 0.8mm. After being squeezed and bonded to the surface of the color steel tile, it increases the static friction and forms a double limit with the first fixing bolt 35 to resist the risk of slippage caused by strong winds and thermal expansion and contraction of the sheet material, making it suitable for windy roof photovoltaic projects.

[0039] The support plate 43 is installed across the space above the top plate 1. The overall length of the support plate 43 is greater than the total horizontal length of the top plate 1. The two parallel strips of the support plate 43 are connected by multiple horizontal connecting plates. The top surface of the support plate 43 is a flat bearing plane, which can be directly connected to the longitudinal main beam of the photovoltaic bracket without the need for additional adapter accessories.

[0040] The support plate 43 can simultaneously support the photovoltaic main beam between the front and rear clamps; multiple horizontal connecting plates are arranged at equal intervals to improve the overall bending strength of the support plate 43. A single support plate 43 can withstand a uniformly distributed vertical load of 120kg, meeting the load standards for distributed photovoltaic roofs; the support plate 43 has a hollowed-out lightweight design in the middle, resulting in lower self-weight, and no protruding structure on the top surface. Various conventional photovoltaic steel main beams can be directly laid flat and fixed, eliminating the need for adapter brackets and reducing on-site parts carrying and assembly procedures.

[0041] Two side protective covers 51, two sliding plates 52 and the top protective cover 54 are spliced ​​together to form a semi-enclosed protective cavity. The cavity completely accommodates all the metal threaded parts of the top plate 1, including the exposed knob 23, the rotating adjustment screw 31 and the second fixing bolt 45. After the sliding plate 52 slides down, it blocks the side channel of the protective cavity, preventing external rainwater and roof condensate from directly contacting the threaded connection parts.

[0042] The side protective covers 51, two sliding plates 52, and the top protective cover 54 are spliced ​​together to form a semi-enclosed cuboid protective cavity. The cavity contains the knob 23, the rotating adjustment screw 31, and the second fixing bolt 45, all of which are exposed metal threaded parts. After the sliding plate 52 slides down to its position, it closes the side operation channel. The cavity only retains a small ventilation gap at the bottom, so rainwater and condensate cannot directly contact the threaded parts. The aluminum alloy side protective covers 51 and the top protective cover 54 isolate water vapor and ultraviolet rays, reduce the corrosion, jamming, and stripping of stainless steel fasteners, and reduce the maintenance costs of roof repair and parts replacement in the later stage.

[0043] The slide rail 34 is designed as a long strip with an inner groove. The cross-sectional profile of the slide block 33 is perfectly matched with the inner groove cross-section of the slide rail 34. Only a horizontal sliding gap is reserved between the slide block 33 and the groove wall of the slide rail 34. The slide block 33 cannot be dislodged from the inside of the slide rail 34 vertically. The slide block 33 and the slide rail 34 maintain a sliding fit state throughout the entire deflection operation of the side clamp 25.

[0044] The slide block 33 and the slide rail 34 groove wall are reserved with only a 0.3mm horizontal sliding gap and no vertical movement margin. The slide block 33 always keeps in contact with the slide rail 34 throughout the deflection adjustment process, and will not fall off and cause clamping failure. The angle adjustment transmission is continuous and stable, and the force of the tile peak clamping is uniform.

[0045] The two-way threaded rod 21 has the same pitch and tooth profile for the reverse thread sections at both ends. When the knob 23 drives the two-way threaded rod 21 to rotate at any angle, the left and right threaded blocks 24 move along the rod body with the same stroke. The two side clamps 25 always maintain symmetrical and synchronous movement with the central axis of the top plate 1 as the reference.

[0046] The reverse threads at both ends of the bidirectional threaded rod 21 are uniformly 8mm in outer diameter, 1.25mm in pitch, and 60° triangular tooth profile. When the rotating knob 23 drives the bidirectional threaded rod 21 to rotate, the movement stroke of the threaded blocks 24 on both sides is completely equal. The side clamping plate 25 always moves synchronously and symmetrically with the central axis of the top plate 1, so there will be no problem of excessive clamping on one side. This avoids the local stress deformation of the color steel tile caused by eccentric clamping. The width adjustment on both sides can be completed synchronously by a single person, simplifying the on-site installation process.

[0047] Working steps: Place the top plate 1 stably on the top of the corrugated steel roof tile. Rotate the knob 23. The knob 23 drives the bevel gear set 22 to rotate synchronously. The bevel gear set 22 drives the double-threaded rod 21 to rotate. The two ends of the double-threaded rod 21 are provided with reverse threads, which respectively mesh with two sets of threaded blocks 24. When the double-threaded rod 21 rotates, the two sets of threaded blocks 24 move towards each other along the rod body, synchronously driving the side clamps 25 on both sides to move closer to the side wall of the roof tile, completing the initial alignment of the side clamps 25 with the sides of the roof tile. The anti-slip pads 26 are attached to the surface of the side clamps 25 to increase the contact friction with the corrugated steel roof tile. To prevent slippage during clamping, the adjusting screws 31 at both ends of the top plate 1 are then rotated. The rotating screws 31 raise and lower, causing the rotating block 32 to move up and down synchronously. The rotating block 32 is connected to the side clamping plate 25 via a slide block 33. The slide block 33 can slide horizontally within the slide rail 34 on the side of the side clamping plate 25, thus adapting to the angular deflection of the side clamping plate 25. This drives the side clamping plate 25 to rotate inward around the connection point between the threaded block 24 and the side clamping plate 25, ensuring the side clamping plate 25 fully adheres to and presses against the slopes on both sides of the roof peak. Then, the sliding plate 52 is pulled upwards to insert the first fixing bolt 35. The clamp is screwed into the pre-set threaded hole in the side clamping plate 25 through the bottom through hole of the sliding plate 52, and finally drilled into the metal layer of the corrugated steel roof, thus completing the rigid locking and fixing of the clamp to the corrugated steel roof. During the rotation and adjustment of the side clamping plate 25, the side protective cover 51 rotates synchronously with the side clamping plate 25, and the connecting blocks 53 fixed on both sides of the top of the side protective cover 51 change height synchronously. The top protective cover 54 is slidably sleeved on the outside of the connecting blocks 53 through the sliding groove 55. The connecting blocks 53 slide relative to each other along the sliding groove 55, adaptively adapting to the tilt angle of the side protective cover 51, so that the sliding plate 52 and the top protective cover 54 are intact. Cover the outside of the top plate 1 to cover and isolate all exposed metal fasteners such as the knob 23, the rotating adjustment screw 31, and the second fixing bolt 45, so as to prevent rainwater from directly corroding the fasteners; finally, take the support plate 43, align the snap-fit ​​holes 44 at both ends of the support plate 43 with the limiting block 41 on the top surface of the top plate 1 to complete the snap-fit ​​positioning, and then screw the second fixing bolt 45 into the fixing thread hole 42 to lock it, so that the support plate 43 is firmly fixed above the top plate 1. The support plate 43 serves as the load-bearing base of the photovoltaic bracket main beam. After completing the assembly of the entire set of fixtures, the photovoltaic bracket crossbeam can be directly fixed on the support plate 43.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A roof clamp for photovoltaic support on color steel tile roofs, comprising a top plate (1), characterized in that, The surface of the top plate (1) is provided with a width adjustment mechanism (2), which includes a bidirectional threaded rod (21), a threaded block (24), and a side clamping plate (25). The side clamping plate (25) is driven to produce horizontal displacement through the threaded engagement of the bidirectional threaded rod (21) and the threaded block (24). Angle adjustment mechanism (3) includes a rotating adjustment screw (31), a slide block (33), and a slide rail (34). The rotating adjustment screw (31) drives the slide block (33) to slide along the slide rail (34) and drives the side clamp (25) to deflect. The connecting mechanism (4) includes a limiting block (41), a support plate (43), and a snap-fit ​​hole (44), which completes the positioning of the support plate (43) through the cooperation of the limiting block (41) and the snap-fit ​​hole (44); The protective mechanism (5) includes a side protective cover (51), a connecting block (53), a slide groove (55), and a top protective cover (54). The side protective cover (51) drives the connecting block (53) to slide along the slide groove (55) to match the position of the top protective cover (54).

2. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 1, characterized in that, The top plate (1) is provided with a knob (23) in the middle. The output end of the knob (23) is coaxially connected to the driving gear of the bevel gear set (22). The driven gear of the bevel gear set (22) is fixed to the middle of the body of the bidirectional threaded rod (21). The bidirectional threaded rod (21) is horizontally mounted along the top plate (1). The two ends of the rod are respectively machined with external threads of opposite directions. Two threaded blocks (24) are respectively threaded onto the opposite threaded sections at both ends of the bidirectional threaded rod (21). The top of the side clamp (25) and the bottom of the threaded block (24) form a rotating connection. When the bidirectional threaded rod (21) rotates, the two sets of threaded blocks (24) drive the two side clamps (25) to move synchronously towards or away from each other.

3. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 1, characterized in that, The top plate (1) has vertical threaded through holes symmetrically opened at both ends. The rotating adjustment screw (31) is vertically screwed into the threaded through hole. The bottom end of each rotating adjustment screw (31) is rotatably connected to the rotating block (32). The rotating block (32) is rotatably connected to the slide block (33). The slide rail (34) is opened along the outer wall of the side clamp plate (25). The slide block (33) is embedded in the slide rail (34) and can only slide horizontally along the length of the slide rail (34). The side clamp plate (25) has a through threaded hole. The first fixing bolt (35) is threadedly embedded in the threaded hole.

4. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 1, characterized in that, Two sets of limiting blocks (41) are fixed at intervals on the upper surface of the top plate (1). The top of the two sets of limiting blocks (41) is provided with fixing threaded holes (42). The support plate (43) is a double parallel long strip plate. The snap-fit ​​holes (44) are respectively opened at both ends of the support plate (43). The inner contour of the snap-fit ​​hole (44) matches the outer contour of the limiting block (41) to achieve the pre-positioning of the support plate (43). The second fixing bolt (45) passes through the support plate (43) from top to bottom and is screwed into the fixing threaded hole (42) to lock and fix the support plate (43) above the top plate (1).

5. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 1, characterized in that, The side protective cover (51) is vertically fixed to the outer wall of the side clamp (25). The sliding plate (52) is slidably mounted on the side edge of the side protective cover (51) in the vertical direction. The sliding plate (52) can slide up and down along the side protective cover (51). Pulling the sliding plate (52) upward can open the operation channel reserved on the side of the side protective cover (51). The connecting block (53) extends outward and is formed on both sides of the top of the side protective cover (51). The slide groove (55) is opened on both sides of the bottom surface of the top protective cover (54) in the length direction. The connecting block (53) is slidably embedded in the slide groove (55). During the process of the side clamp (25) driving the side protective cover (51) to deflect, the connecting block (53) slides along the slide groove (55) and adjusts the vertical coverage height of the top protective cover (54) synchronously.

6. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 2, characterized in that, The anti-slip pad (26) is fixedly attached to the inner side of the side clamp (25) facing the central axis of the clamp. The anti-slip pad (26) completely covers the clamping area where the side clamp (25) contacts the slope of the corrugated steel tile. The outer surface of the anti-slip pad (26) is covered with dense convex and concave anti-slip textures to increase the contact friction between the side clamp (25) and the corrugated steel tile.

7. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 4, characterized in that, The support plate (43) is installed across the space above the top plate (1). The overall length of the support plate (43) is greater than the total horizontal length of the top plate (1). The two parallel strips of the support plate (43) are connected by multiple horizontal connecting plates. The top surface of the support plate (43) is a flat bearing plane, which can be directly connected to the longitudinal main beam of the photovoltaic bracket without the need for additional adapter accessories.

8. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 5, characterized in that, Two side protective covers (51), two sliding plates (52) and the top protective cover (54) are spliced ​​together to form a semi-closed protective cavity. The cavity completely accommodates all the metal threaded parts of the top plate (1), including the exposed knob (23), the rotating adjustment screw (31) and the second fixing bolt (45). After the sliding plate (52) slides down, it blocks the side passage of the protective cavity, preventing external rainwater and roof condensate from directly contacting the threaded connection parts.

9. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 3, characterized in that, The slide rail (34) is designed as a long inner groove structure. The cross-sectional profile of the slide block (33) is completely fitted and matched with the inner groove cross-section of the slide rail (34). Only a horizontal sliding gap is reserved between the slide block (33) and the groove wall of the slide rail (34). The slide block (33) cannot be dislodged from the inside of the slide rail (34) in the vertical direction. The slide block (33) and the slide rail (34) maintain a sliding fit state throughout the entire deflection operation of the side clamp (25).

10. A roof clamp for a photovoltaic support system on a color steel tile roof according to claim 2, characterized in that, The reverse thread sections at both ends of the bidirectional threaded rod (21) adopt the same pitch and tooth profile. When the knob (23) drives the bidirectional threaded rod (21) to rotate at any angle, the left and right threaded blocks (24) move along the rod body with the same stroke. The side clamps (25) on both sides always maintain symmetrical synchronous movement with the central axis of the top plate (1) as the reference.

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