Fastening and connecting screw for flexible waterproof roll roof and photovoltaic base

Abstract

The utility model provides a fastening connection screw for a flexible waterproof roll roof and a photovoltaic base, and belongs to the technical field of screws. The fastening connecting screw for the flexible waterproof roll roof and the photovoltaic base comprises a head rotating part, an annular sealing ring is embedded in the bottom of the head rotating part, the bottom of the head rotating part is integrally connected with a first cutting section, and the bottom of the first cutting section is integrally connected with a second cutting section. The annular groove is formed in the bottom of the head rotating part, the annular sealing ring is inserted into the annular groove, and the screw penetrates through the photovoltaic base to be connected with the roof structure, so that the head rotating part makes contact with the photovoltaic base, the annular sealing ring is extruded, and the sealing performance between the head rotating part and the photovoltaic base is improved; meanwhile, the elastic sealing strip is fixedly installed on the first cutting section and arranged in the spiral line direction of the first cutting section, so that the elastic sealing strip can be screwed into the screw hole, and the sealing effect between the screw and the screw hole is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of screws, in particular to a flexible waterproof coiled material roof and photovoltaic pedestal fastening connection screw. BACKGROUND

[0002] In the field of roof photovoltaic system installation, the traditional flexible waterproof coiled material roof construction faces severe challenges. The installation personnel need to make holes layer by layer on the waterproof coiled material, insulation rock wool and profiled steel plate, which not only consumes working hours but also has the risk of debris pollution. Especially in the clean workshop scene of electronic manufacturing, pharmaceutical production and the like, the metal debris generated by the traditional process will seriously damage the clean environment, and the sealing structure between the existing screw and the roof structure is relatively single, that is, a gasket is arranged between the screw head and the roof to realize sealing. Therefore, the present application provides a flexible waterproof coiled material roof and photovoltaic pedestal fastening connection screw. CONTENT OF THE UTILITY MODEL

[0003] In order to make up for the above shortcomings, the present application provides a flexible waterproof coiled material roof and photovoltaic pedestal fastening connection screw, which aims to improve the problem of poor sealing effect of the existing roof screw connection structure.

[0004] The present application provides a flexible waterproof coiled material roof and photovoltaic pedestal fastening connection screw, which comprises a head part, an annular sealing ring is embedded in the bottom of the head part, and a cutting section one is integrally connected to the bottom of the head part, a cutting section two is integrally connected to the bottom of the cutting section one, and a cutting tail section is integrally connected to the bottom of the cutting section two.

[0005] In a specific embodiment, an annular groove is formed in the bottom of the head part, and the annular sealing ring is inserted into the annular groove.

[0006] In a specific embodiment, the annular sealing ring comprises an annular sealing gasket, an elastic extrusion ring is fixedly installed on the top of the annular sealing gasket, the annular sealing gasket and the elastic extrusion ring are inserted into the annular groove, and the bottom of the annular sealing gasket is exposed from the annular groove.

[0007] In a specific embodiment, an elastic sealing strip is fixedly connected to the outer wall of the cutting section one, the elastic sealing strip is located at the top position of the cutting section one, and is arranged in a spiral manner, and the spiral direction of the elastic sealing strip is arranged along the spiral line direction of the cutting section one.

[0008] In a specific embodiment, the cutting tail section is a flat toothed tail end.

[0009] In a specific embodiment, the cutting tail section is a rain umbrella toothed spoon tail end.

[0010] In a specific embodiment, the cutting tip is a dental point tip.

[0011] In a specific embodiment, the cutting tip is a dental bur tip.

[0012] In a specific embodiment, the cutting tip is an umbrella dental bur tip.

[0013] In a specific embodiment, the cutting tip is a triangular dental bur tip.

[0014] The beneficial effects of the present application: by opening a ring-shaped groove at the bottom of the head part, and inserting a ring-shaped sealing ring in the ring-shaped groove, the screw of the present application connects the photovoltaic base with the roof structure, so that the head part contacts the photovoltaic base, and the ring-shaped sealing ring is extruded, to improve the sealing between the head part and the photovoltaic base. At the same time, the elastic sealing strip is fixedly installed on the cutting section one, and the elastic sealing strip is arranged along the spiral line direction of the cutting section one, so that the elastic sealing strip can be screwed into the screw hole, to improve the sealing effect between the screw and the screw hole. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0016] Figure 1 is the structure schematic diagram of the embodiment 1 of the flexible waterproofing membrane roof and the fastening connection screw of the photovoltaic base provided by the present application;

[0017] Figure 2 is the structure schematic diagram of the embodiment 2 of the flexible waterproofing membrane roof and the fastening connection screw of the photovoltaic base provided by the present application;

[0018] Figure 3 is the structure schematic diagram of the embodiment 3 of the flexible waterproofing membrane roof and the fastening connection screw of the photovoltaic base provided by the present application;

[0019] Figure 4 is the structure schematic diagram of the embodiment 4 of the flexible waterproofing membrane roof and the fastening connection screw of the photovoltaic base provided by the present application;

[0020] Figure 5 is the structure schematic diagram of the embodiment 5 of the flexible waterproofing membrane roof and the fastening connection screw of the photovoltaic base provided by the present application;

[0021] Figure 6Figure 6 is a structural schematic diagram of the embodiment 6 of the flexible waterproofing membrane roof and photovoltaic base fastening connection screw provided by the present application;

[0022] Figure 7 For Figure 5 The local enlarged view at A in the figure.

[0023] In the figure: 10 - head part; 110 - annular groove; 20 - annular sealing ring; 210 - annular sealing pad; 220 - elastic extrusion ring; 30 - cutting section one; 310 - elastic sealing strip; 40 - cutting section two; 50 - cutting tail section. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0025] Embodiment 1

[0026] Please refer to Figure 1 The present application provides a flexible waterproofing membrane roof and photovoltaic base fastening connection screw, which comprises a head part 10, the bottom of the head part 10 is embedded with an annular sealing ring 20, and the bottom of the head part 10 is integrally connected with a cutting section one 30, the bottom of the cutting section one 30 is integrally connected with a cutting section two 40, the bottom of the cutting section two 40 is integrally connected with a cutting tail section 50, specifically, the photovoltaic base is placed on the roof structure, the cutting section one 30, the cutting section two 40 and the cutting tail section 50 penetrate through the photovoltaic base and drill into the roof structure, the roof structure is composed of a flexible waterproofing membrane, thermal insulation rock wool and a profiled steel sheet, a connecting groove is formed at the top of the head part 10, the connecting groove is matched with a drilling machine, further, an annular groove 110 is formed at the bottom of the head part 10, the annular sealing ring 20 is inserted into the annular groove 110, when arranged, the annular sealing ring 20 is inserted into the annular groove 110, so that when the self-tapping screw of the present application is installed, the head part 10 and the photovoltaic base extrude the annular sealing ring 20, so as to improve the sealing property between the head part 10 and the photovoltaic base, and a corresponding mounting hole is formed on the photovoltaic base.

[0027] Please refer to Figure 7 The annular sealing ring 20 comprises an annular sealing pad 210, the top of the annular sealing pad 210 is fixedly installed with an elastic extrusion ring 220, the annular sealing pad 210 and the elastic extrusion ring 220 are inserted into the annular groove 110, and the bottom of the annular sealing pad 210 is exposed from the annular groove 110, when arranged, the elastic extrusion ring 220 is in contact with the top of the annular groove 110, so that when the head part 10 and the photovoltaic base extrude the annular sealing pad 210, the annular sealing pad 210 extrudes the elastic extrusion ring 220, thereby increasing the contact force between the annular sealing pad 210 and the photovoltaic base and improving the sealing property between the head part 10 and the photovoltaic base.

[0028] In order to further improve the sealing effect, the outer wall of the cutting section one 30 is fixedly connected with an elastic sealing strip 310, the elastic sealing strip 310 is located at the top position of the cutting section one 30, and is arranged in a spiral manner, the spiral direction of the elastic sealing strip 310 is arranged along the spiral line direction of the cutting section one 30.

[0029] In the embodiment, the cutting tail section 50 is a tooth flat tail end, and an obtuse angle thread design is adopted, which is suitable for ordinary profiled steel plates, and ensures that the base material is not deformed when penetrating.

[0030] Embodiment 2

[0031] Please refer to Figure 2 The application provides a flexible waterproof coiled material roof and photovoltaic pedestal fastening and connecting screw, which comprises a head rotating part 10, an annular sealing ring 20 is embedded in the bottom of the head rotating part 10, and the bottom of the head rotating part 10 is integrally connected with a cutting section one 30, the bottom of the cutting section one 30 is integrally connected with a cutting section two 40, and the bottom of the cutting section two 40 is integrally connected with a cutting tail section 50.

[0032] An annular groove 110 is formed in the bottom of the head rotating part 10, and the annular sealing ring 20 is inserted into the annular groove 110.

[0033] The annular sealing ring 20 comprises an annular sealing gasket 210, and an elastic extrusion ring 220 is fixedly installed at the top of the annular sealing gasket 210, the annular sealing gasket 210 and the elastic extrusion ring 220 are inserted into the annular groove 110, and the bottom of the annular sealing gasket 210 is exposed from the annular groove 110.

[0034] An elastic sealing strip 310 is fixedly connected to the outer wall of the cutting section one 30, the elastic sealing strip 310 is located at the top position of the cutting section one 30, and is arranged in a spiral manner, and the spiral direction of the elastic sealing strip 310 is arranged along the spiral line direction of the cutting section one 30.

[0035] In the embodiment, the cutting tail section 50 is a rain umbrella tooth spoon tail end, and an umbrella-shaped hole expansion structure is combined with a spoon-shaped chip removal groove, so that the anchoring contact surface is effectively expanded.

[0036] Embodiment 3

[0037] Please refer to Figure 3 The application provides a flexible waterproof coiled material roof and photovoltaic pedestal fastening and connecting screw, which comprises a head rotating part 10, an annular sealing ring 20 is embedded in the bottom of the head rotating part 10, and the bottom of the head rotating part 10 is integrally connected with a cutting section one 30, the bottom of the cutting section one 30 is integrally connected with a cutting section two 40, and the bottom of the cutting section two 40 is integrally connected with a cutting tail section 50.

[0038] The bottom of the head part 10 is provided with an annular groove 110, and the annular sealing ring 20 is inserted into the annular groove 110.

[0039] The annular sealing ring 20 comprises an annular sealing pad 210, and the top of the annular sealing pad 210 is fixedly provided with an elastic extrusion ring 220. The annular sealing pad 210 and the elastic extrusion ring 220 are inserted into the annular groove 110, and the bottom of the annular sealing pad 210 is exposed from the annular groove 110.

[0040] The outer wall of the cutting section one 30 is fixedly connected with an elastic sealing strip 310. The elastic sealing strip 310 is located at the top of the cutting section one 30 and is spirally arranged. The spiral direction of the elastic sealing strip 310 is arranged along the spiral line direction of the cutting section one 30.

[0041] In this embodiment, the cutting tail section 50 is a tooth drill tail end, and the spiral drill bit type leading structure can penetrate a galvanized steel plate with a thickness of more than 0.8 mm.

[0042] Embodiment 4

[0043] Please refer to Figure 4 The application provides a flexible waterproof roll roofing and photovoltaic base fastening connection screw, which comprises a head part 10, the bottom of the head part 10 is embedded with an annular sealing ring 20, the bottom of the head part 10 is integrally connected with a cutting section one 30, the bottom of the cutting section one 30 is integrally connected with a cutting section two 40, and the bottom of the cutting section two 40 is integrally connected with a cutting tail section 50.

[0044] The bottom of the head part 10 is provided with an annular groove 110, and the annular sealing ring 20 is inserted into the annular groove 110.

[0045] The annular sealing ring 20 comprises an annular sealing pad 210, and the top of the annular sealing pad 210 is fixedly provided with an elastic extrusion ring 220. The annular sealing pad 210 and the elastic extrusion ring 220 are inserted into the annular groove 110, and the bottom of the annular sealing pad 210 is exposed from the annular groove 110.

[0046] The outer wall of the cutting section one 30 is fixedly connected with an elastic sealing strip 310. The elastic sealing strip 310 is located at the top of the cutting section one 30 and is spirally arranged. The spiral direction of the elastic sealing strip 310 is arranged along the spiral line direction of the cutting section one 30.

[0047] In this embodiment, the cutting tail section 50 is a tooth drill tail end, and the spiral drill bit type leading structure can penetrate a galvanized steel plate with a thickness of more than 0.8 mm.

[0048] Embodiment 5

[0049] Please refer to Figure 5The application provides a flexible waterproof coiled material roof and photovoltaic pedestal fastening connection screw, which comprises a head rotating part 10, an annular sealing ring 20 is embedded in the bottom of the head rotating part 10, and a cutting section one 30 is integrally connected to the bottom of the head rotating part 10, a cutting section two 40 is integrally connected to the bottom of the cutting section one 30, and a cutting tail section 50 is integrally connected to the bottom of the cutting section two 40.

[0050] An annular groove 110 is formed in the bottom of the head rotating part 10, and the annular sealing ring 20 is inserted into the annular groove 110.

[0051] The annular sealing ring 20 comprises an annular sealing gasket 210, and an elastic extrusion ring 220 is fixedly installed at the top of the annular sealing gasket 210, the annular sealing gasket 210 and the elastic extrusion ring 220 are inserted into the annular groove 110, and the bottom of the annular sealing gasket 210 is exposed from the annular groove 110.

[0052] An elastic sealing strip 310 is fixedly connected to the outer wall of the cutting section one 30, the elastic sealing strip 310 is located at the top of the cutting section one 30 and is arranged in a spiral manner, and the spiral direction of the elastic sealing strip 310 is arranged along the spiral line direction of the cutting section one 30.

[0053] In the embodiment, the cutting tail section 50 is a rain umbrella drill tail section, which has the functions of combined drilling and hole expanding and is suitable for a multi-layer composite roof structure.

[0054] Embodiment 6

[0055] Please refer to Figure 6 The application provides a flexible waterproof coiled material roof and photovoltaic pedestal fastening connection screw, which comprises a head rotating part 10, an annular sealing ring 20 is embedded in the bottom of the head rotating part 10, and a cutting section one 30 is integrally connected to the bottom of the head rotating part 10, a cutting section two 40 is integrally connected to the bottom of the cutting section one 30, and a cutting tail section 50 is integrally connected to the bottom of the cutting section two 40.

[0056] An annular groove 110 is formed in the bottom of the head rotating part 10, and the annular sealing ring 20 is inserted into the annular groove 110.

[0057] The annular sealing ring 20 comprises an annular sealing gasket 210, and an elastic extrusion ring 220 is fixedly installed at the top of the annular sealing gasket 210, the annular sealing gasket 210 and the elastic extrusion ring 220 are inserted into the annular groove 110, and the bottom of the annular sealing gasket 210 is exposed from the annular groove 110.

[0058] An elastic sealing strip 310 is fixedly connected to the outer wall of the cutting section one 30, the elastic sealing strip 310 is located at the top of the cutting section one 30 and is arranged in a spiral manner, and the spiral direction of the elastic sealing strip 310 is arranged along the spiral line direction of the cutting section one 30.

[0059] In this embodiment, the cutting tail section 50 is a triangular dental drill tail end, and the three-prong cutting edge design significantly reduces the installation torque and improves the penetration efficiency of hard materials.

[0060] In use, the photovoltaic base is placed on the roof structure, and the annular sealing gasket 210 is inserted into the annular groove 110, and it should be noted that the annular sealing gasket 210 and the annular groove 110 have a certain friction force, so that the annular sealing gasket 210 will not fall off, then the head rotating part 10 of the self-tapping screw is connected with the existing drilling machine, so that the drilling machine can drive the self-tapping screw to rotate, and the self-tapping screw is screwed into the roof structure, thereby fixing the photovoltaic base, and when the head rotating part 10 of the self-tapping screw contacts the photovoltaic base, the annular sealing ring 20 is extruded, and the elastic sealing strip 310 is screwed into the threaded groove drilled, so as to improve the sealing effect between the self-tapping screw and the roof structure.

[0061] It should be noted that the specific model and specification of the cutting section one 30 and the cutting section two 40 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0062] The above only describes the embodiments of the present application and does not limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A fastening screw for flexible waterproofing membrane roofing and photovoltaic submounts, characterized in that, Head rotating part (10) is embedded with annular sealing ring (20) in bottom, and cutting section one (30) is integrally connected in bottom, cutting section two (40) is integrally connected in bottom of cutting section one (30), and cutting tail section (50) is integrally connected in bottom of cutting section two (40).

2. A fastening connection screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Annular groove (110) is set in bottom of head rotating part (10), and annular sealing ring (20) is inserted in annular groove (110).

3. A fastening connector screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 2, wherein, Annular sealing ring (20) includes annular sealing pad (210), and elastic extrusion ring (220) is fixedly installed on top of annular sealing pad (210), annular sealing pad (210) and elastic extrusion ring (220) are inserted in annular groove (110), and bottom of annular sealing pad (210) is exposed from annular groove (110).

4. A fastening connection screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Elastic sealing strip (310) is fixedly connected on outer wall of cutting section one (30), and elastic sealing strip (310) is located at top of cutting section one (30) and is spirally arranged, and spiral direction of elastic sealing strip (310) is arranged along spiral line direction of cutting section one (30).

5. A fastening connection screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Cutting tail section (50) is flat tooth end.

6. A fastening connector screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Cutting tail section (50) is umbrella tooth spoon end.

7. A fastening connector screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Cutting tail section (50) is tooth tip cutting end.

8. A fastening connection screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Cutting tail section (50) is tooth drill end.

9. A fastening connector screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Cutting tail section (50) is umbrella tooth drill end.

10. A fastening connector screw for a flexible waterproofing membrane roof and photovoltaic submount according to claim 1, wherein, Cutting tail section (50) is triangular tooth drill end.

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