One-way roof installation assembly, roof base, and roof base installation method

Abstract

The present invention discloses a one-way roof installation assembly, a roof base, and a method for installing the roof base, characterized in that the assembly comprises a main body, a screw hole being provided in the middle of the top surface of the main body; the main body comprises a coaxially arranged limiting portion and a connecting portion, the top of the connecting portion being connected to the middle of the bottom surface of the limiting portion; the connecting portion comprises a connecting rod and a limiting thread provided on the outer surface of the connecting rod, the outer diameter of the connecting rod being smaller than the outer diameter of the limiting portion, the limiting thread being screwed onto the outer surface of the connecting rod from bottom to top; the width of the limiting thread gradually increases from bottom to top, the bottom outer surface of the limiting thread being connected to the outer surface of the connecting rod, the top outer surface of the limiting thread being arranged away from the outer surface of the connecting rod; and a limiting spacing being provided between the top of the limiting thread and the bottom surface of the limiting portion. The present invention reduces the size of the opening on the roof, reduces damage to the roof, and can also ensure strength.

Description

Technical Field

[0001] The present invention relates to the field of roof equipment installation, and in particular to a roof one-way installation component, a roof base, and a roof base installation method. Background Art

[0002] Roof bases are widely used in various roof application functions, such as solar panels, air conditioners, billboards, etc., mainly to connect and install roof platforms and other technical device components.

[0003] In the prior art, for a roof structure consisting of a TPO membrane layer, an insulation layer, and a corrugated steel sheet, the TPO membrane layer is bonded to the surface of the insulation layer, and the corrugated steel sheet is supported on the bottom surface of the insulation layer. When installing the roof base to the roof structure, the installation method is as follows: first, a large hole is drilled in the membrane layer and the insulation layer, then a relatively small hole is drilled in the corrugated steel sheet. Then, a limiting mechanism at the bottom of the roof base is passed through the hole in the corrugated steel sheet and inserted under the corrugated steel sheet, so that the limiting mechanism is locked under the corrugated steel sheet. The roof base is then connected to the limiting mechanism via screws. For example, patent number 202220823219.1 is titled "A roofing equipment mounting bracket, the bottom limit mechanism of which uses an automatically flippable special-shaped rivet"; and patent number 202121522845.9 is titled "An auxiliary bracket, the bottom limit mechanism of which uses a flippable rivet." Both structures have the following deficiencies:

[0004] 1. The width of special-shaped rivets and flip rivets after shrinkage is relatively large. Therefore, the holes that need to be opened on the corrugated steel sheet will be relatively large, which will affect the strength of the corrugated steel sheet, making its pressure-bearing capacity worse and reducing the service life of the roof;

[0005] 2. Since the holes that need to be opened on the corrugated steel plate are relatively large, in order to facilitate the opening of the holes in the corrugated steel plate and provide space for hole opening operations, the holes opened on the coil layer and the insulation layer are larger (providing sufficient space for hole opening operations). Even if the insulation layer is subsequently filled and the coil layer is repaired, the larger holes will affect the insulation effect, the waterproof effect, or the service life of the coil waterproofing, or it will be more prone to water leakage problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a roof one-way installation component, a roof base and a roof base installation method. By using this component and structure, the size of the roof opening can be effectively reduced, the damage to the roof can be minimized as much as possible, the strength of the roof can be further guaranteed, and the installation firmness and stability can be guaranteed.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a one-way roof installation component, comprising a body, wherein a screw hole is provided in the middle of the top surface of the body;

[0008] The body includes a coaxially arranged limiting portion and a connecting portion, wherein the top of the connecting portion is connected to the middle portion of the bottom surface of the limiting portion;

[0009] The connecting portion includes a connecting rod and a limiting thread provided on the outer surface of the connecting rod, the outer diameter of the connecting rod is smaller than the outer diameter of the limiting portion, and the limiting thread is screwed on the outer surface of the connecting rod from bottom to top;

[0010] The width of the limiting thread gradually increases from bottom to top, the bottom outer surface of the limiting thread is connected to the outer surface of the connecting rod, and the top outer surface of the limiting thread is arranged away from the outer surface of the connecting rod;

[0011] There is a limiting distance between the top of the limiting thread and the bottom surface of the limiting portion.

[0012] In the above technical solution, the inner end of the limiting thread is connected to the outer surface of the connecting rod, and the width of the inner end of the limiting thread is greater than the width of the outer end of the limiting thread.

[0013] In the above technical solution, the limiting portion is a polyhedron structure.

[0014] In the above technical solution, the outer surface of the bottom of the connecting rod is provided with a tapered guide surface which is smaller at the bottom and larger at the top, and the top of the tapered guide surface is arranged close to the bottom of the limiting thread.

[0015] In the above technical solution, the depth of the screw hole is less than or equal to the height of the limiting portion, the screw hole is arranged at the top of the limiting portion, and the bottom of the screw hole is arranged close to the bottom of the limiting portion, or the bottom of the screw hole is arranged flush with the bottom of the limiting portion.

[0016] In the above technical solution, the top of the screw hole is connected to the top of the limiting portion, and the bottom of the screw hole is connected to the bottom of the body.

[0017] The present invention also provides a roof base, comprising the above-mentioned one-way roof installation assembly, and further comprising a fastening seat and a screw rod, wherein the fastening seat is detachably screwed to the screw hole via the screw rod.

[0018] The present invention also provides a roof base installation method, the steps of which are:

[0019] ①Drill holes in the roofing coil and insulation layer so that the metal plate under the insulation layer is aligned with the holes in the insulation layer;

[0020] ② Then punch holes in the metal plate from the holes in the coil and the insulation layer. The diameter of the holes in the metal plate should be smaller than the diameter of the holes in the insulation layer and the waterproof coil;

[0021] ③ Use a tool to cover the stopper on the top of the installation component and insert the bottom of the installation component connection part into the hole of the metal plate. The outer diameter of the connecting rod of the connection part is equal to the diameter of the hole in the metal plate, and the diameter of the hole in the metal plate is smaller than the diameter of the stopper.

[0022] Then, a tool is used to rotate the mounting assembly, and a notch is cut into the edge of the hole of the metal plate through the limiting thread on the outer surface of the connecting portion. The metal plate at the notch is deformed toward the bottom of the metal plate, and during the screwing process, the limiting thread passes through the notch and is screwed into the bottom of the metal plate. During the screwing process, the length of the notch gradually increases as the width of the limiting thread increases, until the limiting thread completely passes through the notch and is located under the metal plate.

[0023] ④ After the limiting thread completely passes through the hole of the metal plate and is located below the metal plate, the tool will be used to drive the installation assembly to continue to rotate. The metal plate will be between the limiting thread and the limiting part at the top of the installation assembly. When the limiting bolt rotates, it presses the deformed metal plate at the cut to restore it to its original shape.

[0024] ⑤ Screw the fastening base in the roof base to the screw hole on the top of the installation assembly through the screw rod until the coiled material at the bottom of the fastening base rests on the coiled material at the top of the roof, thus achieving the connection between the fastening base and the metal plate;

[0025] ⑥Weld the waterproof membrane on the fastening seat and the roof membrane to complete the installation of the fastening seat.

[0026] In the above technical solution, in step ⑤, the outer diameter of the screw will be smaller than the holes on the coil and the insulation layer, and a filler will be sleeved on the outside of the screw, and the filler will be inserted into the outside of the screw to fill the gap between the screw and the coil and the insulation layer.

[0027] In the above technical solution, in step ③, the limiting distance formed between the top of the limiting thread and the limiting portion is equal to the thickness of the metal plate.

[0028] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0029] 1. In the present invention, a limiting thread with a width gradually increasing from bottom to top is provided on the outer surface of the connecting portion. In this way, when drilling a hole in the metal plate of the roof, the hole diameter and the outer diameter of the connecting portion can be equal. This can effectively reduce the hole diameter, reduce damage to the strength of the roof, further ensure the strength and service life of the roof, and also reduce its maintenance rate.

[0030] 2. The present invention utilizes limiting threads and limiting parts to clamp the metal plate, and the outer surface of the connecting part contacts the inner wall of the hole of the corrugated steel plate, making it a basically integrated structure. Not only is it easy to install, but it also has strong tensile strength, effectively ensuring its firmness and safety during use.

[0031] 3. In the present invention, the openings on the metal plate are small, and the openings of the coiled material and the insulation layer are also small, which can reduce damage to the coiled material and can only ensure the sealing effect of the roof base on the coiled material, reducing the possibility of water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of the main body in the first embodiment of the present invention;

[0033] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure (viewed from above);

[0034] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure (looking down);

[0035] Figure 4 yes Figure 1 Schematic diagram of the cross-sectional structure;

[0036] Figure 5 Schematic diagram of the installation structure of the roof base in the first embodiment of the present invention;

[0037] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure;

[0038] Figure 7 yes Figure 5 Schematic diagram of the three-dimensional structure;

[0039] 8 is a schematic structural diagram of the roof base during installation of the present invention (the filler is not shown);

[0040] Figure 9 This is a schematic diagram of the three-dimensional structure of the roof base and the roof in the installed state in the first embodiment of the present invention;

[0041] Figure 10 Schematic diagram of the structure of the changes in the cutout during the installation process of the body and the metal plate hole in the present invention (from top to bottom, the top figure is the body before installation, the second figure is the state where the limit thread is cutting the hole below, the third figure is the state where the limit thread is cutting the hole above, and the bottom figure is after the limit thread passes through the notch and is located below the metal plate to smooth the cutout into a slit);

[0042] Figure 11This is a schematic diagram of the structure of the present invention in a state where the body and the metal plate are separated by a pulling force (the upper figure shows the body and the metal plate in a normal installation state, and the lower figure shows the body in a state where the hole is deformed after being separated from the metal plate);

[0043] Figure 12 is a schematic cross-sectional structural diagram of the body in the second embodiment of the present invention;

[0044] Figure 13 yes Figure 12 Schematic diagram of the three-dimensional structure of the main body (viewed from above);

[0045] Figure 14 yes Figure 12 Schematic diagram of the three-dimensional structure of the main body (looking down);

[0046] Figure 15 It is a schematic diagram of the installation structure of the roof base in the second embodiment of the present invention.

[0047] Among them: 1. Main body; 2. Screw hole; 3. Limiting part; 4. Connecting rod; 5. Limiting thread; 6. Limiting spacing; 7. Fastening seat; 8. Screw; 9. Waterproof membrane; 10. Membrane; 11. Insulation layer; 12. Metal plate; 13. Hole position; 14. Roof; 15. Incision; 16. Conical guide surface; 17. Upper hole position; 18. Filler; 19. Sleeve; 20. Electric drill. DETAILED DESCRIPTION

[0048] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0049] Example 1: See Figures 1 to 11 As shown, a one-way roof installation assembly includes a body 1, and a screw hole 2 is provided in the middle of the top surface of the body;

[0050] The main body includes a coaxially arranged limiting portion 3 and a connecting portion, wherein the top of the connecting portion is connected to the middle of the bottom surface of the limiting portion;

[0051] The connecting portion includes a connecting rod 4 and a limiting thread 5 provided on the outer surface of the connecting rod. The outer diameter of the connecting rod is smaller than the outer diameter of the limiting portion. The limiting thread is screwed on the outer surface of the connecting rod from bottom to top.

[0052] The width of the limiting thread gradually increases from bottom to top, the bottom outer surface of the limiting thread is connected to the outer surface of the connecting rod, and the top outer surface of the limiting thread is arranged away from the outer surface of the connecting rod;

[0053] There is a limiting distance 6 between the top of the limiting thread and the bottom surface of the limiting portion.

[0054] In this embodiment, the main body is suitable for a one-way installation structure, especially for installation from the top of the roof, and is mainly installed on a roof structure of corrugated steel sheet (metal plate), especially a roof structure with a coil layer, an insulation layer and a corrugated steel sheet, which is suitable for installation on a roof base.

[0055] See also Figures 5-7 As shown, the present invention also provides a roof base, comprising the aforementioned one-way roof installation assembly, and further comprising a fastening base 7 and a screw 8, wherein the fastening base is removably screwed to the screw hole via the screw. A waterproofing membrane 9 is provided on the bottom surface of the fastening base. The main body is used to connect to the corrugated steel sheet of the roof, and the fastening base is then connected to the screw hole of the main body via the screw. The main body is used to install the fastening base on the roof and connect to the metal sheet of the roof, thereby securing the fastening base and achieving the installation and fixation of the roof base.

[0056] See also Figures 8-10 As shown, the present invention further provides a roof base installation method, the steps of which are:

[0057] ① Drill holes in the coiled material 10 and the insulation layer 11 of the roof 14 so that the metal plate below the insulation layer is aligned with the hole position of the insulation layer, which is the upper hole position 17;

[0058] ② Then, punch holes in the metal plate 12 at the holes in the coil and the insulation layer. The diameter of the holes 13 on the metal plate is smaller than the diameter of the holes in the insulation layer and the waterproof coil;

[0059] ③ Use the sleeve 19 to cover the limit part on the top of the installation component, connect the electric drill 20 to the top of the sleeve, and insert the bottom of the installation component connection part into the hole of the metal plate. The outer diameter of the connecting rod of the connection part is equal to the diameter of the hole of the metal plate, and the diameter of the hole of the metal plate is smaller than the diameter of the limit part.

[0060] Then, use an electric drill and a sleeve to rotate the mounting assembly, and cut a notch 15 on the edge of the hole of the metal plate through the limiting thread 5 on the outer surface of the connecting portion. The metal plate at the notch will deform toward the bottom of the metal plate, and during the screwing process, the limiting thread will pass through the notch and screw into the bottom of the metal plate. During the screwing process, the length of the notch will gradually increase as the width of the limiting thread increases, until the limiting thread completely passes through the notch and is under the metal plate.

[0061] ④ After the limiting thread completely passes through the hole of the metal plate and is located below the metal plate, the tool will be used to drive the installation assembly to continue to rotate. The metal plate will be between the limiting thread and the limiting part at the top of the installation assembly. When the limiting bolt rotates, it presses the deformed metal plate at the cut to restore it to its original shape.

[0062] ⑤ Screw the fastening base in the roof base to the screw hole on the top of the installation assembly through the screw rod until the coiled material at the bottom of the fastening base rests on the coiled material at the top of the roof, thus achieving the connection between the fastening base and the metal plate;

[0063] ⑥ Weld the waterproof membrane 9 on the fastening seat and the membrane of the roof to complete the installation of the fastening seat.

[0064] In step ⑤, the outer diameter of the screw will be smaller than the holes on the coil and the insulation layer, and a filler 18 will be sleeved on the outside of the screw. The filler will be inserted into the outside of the screw and filled in the gap between the screw and the coil and the insulation layer. Filling with the filler can prevent the screw and the fastening seat from relative displacement and shaking. At the same time, the insulation layer can also be filled to prevent the loss of the insulation layer, so as to ensure the insulation effect, and to prevent the problem of sinking caused by hollowing out at this place, so as to ensure that the coil above the fastening seat will not be concave, to prevent water accumulation and leakage.

[0065] In step ③, the spacing between the top of the limiting thread and the limiting portion is equal to the thickness of the metal plate. Furthermore, the spacing between adjacent threads is equal to, or slightly greater than, the thickness of the metal plate. In other words, the spacing or pitch between adjacent threads is greater than or equal to the spacing. This allows the metal plate at the cutout to smoothly pass through the spacing between adjacent threads when the limiting thread passes through the metal plate.

[0066] In this embodiment, the width of the limiting thread gradually increases from bottom to top, the bottom outer surface of the limiting thread is connected to the outer surface of the connecting rod, and the top outer surface of the limiting thread is arranged away from the outer surface of the connecting rod; the bottom of the limiting bolt is first inserted into the hole of the metal plate, and then when the mounting assembly rotates, the outer surface of the limiting thread cuts the edge of the hole of the metal plate (corrugated steel plate), cutting a cut that connects to the hole of the metal plate, the top and bottom of the cut connect to the top and bottom surfaces of the metal plate, the spacing between the outer edge of the cut and the edge of the hole is equal to the width of the limiting thread, and the steel plate at the cut bends downward at an angle equal to the inclination angle of the limiting thread, providing space for the limiting thread to pass through. As the mounting assembly gradually moves downward, the width of the limiting thread gradually increases, and the length of the cut also gradually increases, while the steel plate at the cut continues to bend downward (below the limiting thread in the direction of rotation). When the limiting thread has completely passed through the incision, the limiting thread will be below the metal plate. Since the diameter of the limiting part at its top is larger than the outer diameter of the connecting rod, that is, larger than the diameter of the hole, the limiting part cannot move downward through the hole. Then when the main body continues to rotate, the limiting distance between the top of the limiting thread and the limiting part is equal to the thickness of the metal plate. In this way, the limiting thread will smooth the steel plate that is bent downward at the incision upward, so that the incision of the steel plate will not be deformed. The steel plate will be between the limiting thread and the limiting part, and the outer diameter of the top of the limiting thread will be larger than the outer diameter of the hole, and the outer diameter of the limiting part is larger than the outer diameter of the hole, and there is no limiting thread on the limiting part to guide, so the main body cannot rise or fall. In this way, the main body can be limited by the metal plate and fixed. The fastening seat can be connected to the screw hole of the screw and the main body through the screw, which has high installation efficiency and good quality.

[0067] Among them, when connecting the fastening base and the main body, the fastening base can be connected to the top of the screw first, and then connected to the screw hole at the top of the installation component through the screw; or the bottom of the screw can be screwed to the screw hole at the top of the installation component first, and then the fastening base and the top of the screw can be connected. Both methods are acceptable.

[0068] In this embodiment, taking the example of a hole of 9 mm that can only be opened on the metal plate, a hole of 20 mm to 30 mm is first opened on the coil and the insulation layer to provide a hole space for the metal plate. Then, a tool is used to penetrate into the metal plate and a 9 mm hole is opened on the metal plate. The diameter of the connecting rod is equal to the diameter of the hole on the metal plate, which is also 9 mm. The outer diameter of the top of the limiting thread exceeds 9 mm, preferably 12 mm or more. The outer diameter of the limiting portion is equal to the outer diameter of the top of the limiting thread, or there is a slight difference. Taking the outer diameter of the top of the limiting thread as 15 mm as an example, the maximum width of the incision is 3 mm, which causes little damage to the steel plate. In addition, the limiting portion and the top of the limiting thread can clamp the incision of the metal plate to prevent deformation. In this embodiment, the strength and hardness of the body will exceed the strength and hardness of the metal plate (corrugated steel plate).

[0069] For example, with a hole size of 8.9mm, a metal plate thickness of 0.8mm, and the width of the limit thread top protruding from the outside of the connecting rod at 6.75mm, 7.25mm, and 7.75mm, after the body and metal plate are installed, an upward pulling force is applied to the body until the product is broken. Each set of products was tested three times. Figure 11 As shown, the top limit thread moves upward and away from the hole, driving the metal plate at the hole to deform upward. The required tensile force (i.e., the anti-destructive deformation force after the body and the metal plate are connected, and the tensile strength of the metal plate) is:

[0070]

[0071]

[0072] As can be seen from the above, a slight deviation in the outer diameter of the top of the limiting thread has little effect on the metal plate's ability to resist deformation, because the body is basically integrated with the metal plate. It is only the difference in the installation position that causes the metal plate's own deformation resistance to vary. Therefore, the protruding width of the top of the limiting thread does not need to be too large, but it cannot be too small either. The protruding width can be greater than the radius of the connecting rod, but less than the diameter of the connecting rod. In other words, the outer diameter of the top of the limiting thread can be between 1.5 and 2 times the outer diameter of the connecting rod.

[0073] In the present invention, compared to the previous structures of special-shaped rivets and flanged rivets, the holes that need to be opened on the metal plate are smaller. For example, in the present invention, only a 9mm hole is required on the metal plate, while only a 20mm-40mm hole is required on the roofing coil and insulation layer. In contrast, in the previous structures of special-shaped rivets and flanged rivets, in order to achieve the tensile strength of the present invention, a hole of at least 30mm-40mm is required on the metal plate, and a hole of 50mm-60mm is required on the roofing coil and insulation layer. Therefore, the damage to the roof is less in the present invention, which can effectively ensure that the strength of the roof is as intact as possible, extend its service life, reduce maintenance costs, and reduce the possibility of water leakage.

[0074] See also Figures 1 to 10 As shown, the inner end of the limiting thread is connected to the outer surface of the connecting rod, and the width of the inner end of the limiting thread is greater than the width of the outer end of the limiting thread.

[0075] In this embodiment, the inner end width of the limiting thread is greater than the outer end width. As much as possible, the cross-section of the limiting thread is a triangular structure, or a trapezoidal structure with a small outside and a large inside. The outer surface of the limiting thread is as small as possible to form an acute angle. In this way, when the limiting thread passes through the hole and cuts the cavity, it is sharper, which facilitates cutting the metal plate, so that the limiting thread can be smoothly installed through the hole.

[0076] See also Figures 1 to 10 As shown, the limiting part is a polyhedron structure. Generally, a regular tetrahedron structure or a regular hexahedron structure is preferred, which has a hexagonal sleeve or a square sleeve. The limiting part is covered by the sleeve, and the tool drives the limiting part to rotate through the sleeve, and it is installed into the hole of the metal plate. Of course, it can also be an octahedron structure. It mainly depends on the structure of the commonly used sleeves on the market. Generally, the outer diameter structure of the screw head and nut is mainly used. The sleeve tool that matches the screw head and nut is relatively conventional and easy to operate.

[0077] See also Figures 1 to 10 As shown, the outer surface of the bottom of the connecting rod is provided with a tapered guide surface 16 that is smaller at the bottom and larger at the top, and the top of the tapered guide surface is arranged close to the bottom of the limiting thread.

[0078] When installing the main body and the hole of the metal plate, first insert it into the hole through the tapered guide surface. The tapered guide surface plays a guiding role, so that the connecting rod can be quickly inserted into the hole of the metal plate, and the connecting rod and the hole of the metal plate can be quickly coaxial. Then, give the main body a downward thrust to rotate, so that the bottom of the limiting thread first cuts the edge of the hole, so that the limiting thread can pass through the hole of the metal plate to the bottom of the metal plate.

[0079] See also Figure 4 、 6As shown in Figures 9 and 9, the top of the screw hole is connected to the top of the limit portion, and the bottom of the screw hole is connected to the bottom of the body. In this way, when the fastener is connected to the screw hole through the screw rod, the bottom of the screw rod can pass through the bottom of the screw hole and be below the bottom surface of the body. The connection length between the screw rod and the body is long, which can ensure the strength and stability of the connection between the screw rod and the body, and prevent the problem of the screw rod being separated from the screw hole during use as much as possible, ensuring the firmness and stability of installation and use.

[0080] Example 2: See Figures 12-15 As shown, a roof one-way installation component has a structure basically similar to that of Example 1, except that: the depth of the screw hole 2 is less than or equal to the height of the limiting portion, the screw hole is arranged at the top of the limiting portion 3, and the bottom of the screw hole is close to the bottom of the limiting portion, or the bottom of the screw hole is flush with the bottom of the limiting portion.

[0081] In this embodiment, there are two differences from the first embodiment. The first difference is that the screw hole is in the limiting portion and does not enter the connecting portion, that is, does not enter the connecting rod. The second difference is that the length of the limiting portion is longer, so that the length of the screw hole can be guaranteed.

[0082] In this embodiment, compared to the first embodiment, the length of the screw hole can be guaranteed, but the cost of the main body is slightly higher. However, it also has advantages that the first embodiment does not have: the screw hole is located within the limiter, so the connecting rod can be smaller, and the outer diameter of the connecting rod can be smaller than the outer diameter of the screw hole (in this structure, the length of the screw hole is smaller than the length of the limiter). In other words, the hole size on the metal plate can be smaller, the opening of the roof metal plate (corrugated steel plate) is smaller, and the damage to its strength is less, which can maintain its strength, reduce the maintenance rate, and extend the service life.

[0083] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0084] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For example, the two can form a mechanical abutment or abutment connection through abutment, contact, etc. The two can also be directly hung or hung through an intermediate medium, etc., or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A one-way roof installation assembly, characterized by: It comprises a body, wherein a screw hole is provided in the middle of the top surface of the body; The main body includes a coaxially arranged limiting portion and a connecting portion, wherein the top of the connecting portion is connected to the middle portion of the bottom surface of the limiting portion; The connecting portion includes a connecting rod and a limiting thread provided on the outer surface of the connecting rod, the outer diameter of the connecting rod is smaller than the outer diameter of the limiting portion, and the limiting thread is screwed on the outer surface of the connecting rod from bottom to top; The width of the limiting thread gradually increases from bottom to top, the bottom outer surface of the limiting thread is connected to the outer surface of the connecting rod, and the top outer surface of the limiting thread is arranged away from the outer surface of the connecting rod; There is a limiting distance between the top of the limiting thread and the bottom surface of the limiting portion.

2. The one-way roof installation assembly according to claim 1, characterized in that: The inner end of the limiting thread is connected to the outer surface of the connecting rod, and the width of the inner end of the limiting thread is greater than the width of the outer end of the limiting thread.

3. The one-way roof installation assembly according to claim 1, characterized in that: The limiting portion is a polyhedron structure.

4. The one-way roof installation assembly according to claim 1, characterized in that: A conical guide surface with a smaller bottom and a larger top is provided on the bottom outer surface of the connecting rod, and the top of the conical guide surface is arranged close to the bottom of the limiting thread.

5. The one-way roof installation assembly according to claim 1, characterized in that: The depth of the screw hole is less than or equal to the height of the limiting portion, the screw hole is arranged at the top of the limiting portion, and the bottom of the screw hole is arranged close to the bottom of the limiting portion, or the bottom of the screw hole is arranged flush with the bottom of the limiting portion.

6. The one-way roof installation assembly according to claim 1, characterized in that: The top of the screw hole is connected to the top of the limiting portion, and the bottom of the screw hole is connected to the bottom of the body.

7. A roof base, characterized by: It comprises the roof one-way installation assembly according to any one of claims 1 to 6, and further comprises a fastening seat and a screw, wherein the fastening seat is detachably screwed to the screw hole via the screw.

8. A method for installing a roof base, comprising the following steps: ①Drill holes in the roof coil and insulation layer so that the metal plate under the insulation layer is aligned with the holes in the insulation layer; ② Then punch holes in the metal plate from the holes in the coil and the insulation layer. The diameter of the holes in the metal plate should be smaller than the diameter of the holes in the insulation layer and the waterproof coil; ③Use the tool to cover the limit part on the top of the installation component and insert the bottom of the installation component connection part into the hole of the metal plate. The outer diameter of the connecting rod of the connecting portion is equal to the diameter of the hole of the metal plate, and the diameter of the hole of the metal plate is smaller than the diameter of the limiting portion; Then, a tool is used to rotate the mounting assembly, and a notch is cut into the edge of the hole of the metal plate through the limiting thread on the outer surface of the connecting portion. The metal plate at the notch is deformed toward the bottom of the metal plate, and during the screwing process, the limiting thread passes through the notch and is screwed into the bottom of the metal plate. During the screwing process, the length of the notch gradually increases as the width of the limiting thread increases, until the limiting thread completely passes through the notch and is located under the metal plate. ④ After the limiting thread completely passes through the hole of the metal plate and is located below the metal plate, the tool will be used to drive the installation assembly to continue to rotate. The metal plate will be between the limiting thread and the limiting part at the top of the installation assembly. When the limiting bolt rotates, it presses the deformed metal plate at the cut to restore it to its original shape. ⑤ Screw the fastening base in the roof base to the screw hole on the top of the installation assembly through the screw rod until the coiled material at the bottom of the fastening base rests on the coiled material at the top of the roof, thus achieving the connection between the fastening base and the metal plate; ⑥Weld the waterproof membrane on the fastening seat and the roof membrane to complete the installation of the fastening seat.

9. The roof base installation method according to claim 8, characterized in that: In step ⑤, the outer diameter of the screw will be smaller than the holes on the coil and the insulation layer, and a filler will be sleeved on the outside of the screw. The filler will be inserted into the outside of the screw and filled in the gap between the screw and the coil and the insulation layer.

10. The roof base installation method according to claim 8, characterized in that: In the step ③, the limiting distance formed between the top of the limiting thread and the limiting portion is equal to the thickness of the metal plate.

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