Efficient hot melt flow drill screw for new energy automobile

Abstract

The invention relates to the technical field of flow drilling screws, and provides an efficient hot melting flow drilling screw for a new energy automobile, the efficient hot melting flow drilling screw comprises a nut and a screw head which are integrated, the screw head is fixedly connected to the top side of the nut, the interior of the screw head is hollow, the screw head is provided with a hexagonal stress head, and the hexagonal stress head is fixedly connected to the top side of the nut; when the screw needs to be disassembled and the stress structure is damaged, the relatively soft screw head is cut off, the hexagonal stress head is exposed, the stress structure is replaced, and the middle end of the bottom side of the nut is fixedly connected with a screw rod used for tightening work. A matched tightening tool can synchronously apply force to a screw through a plurality of force application grooves and stress protrusions, so that the force output of an external tool is maximized, the screw can be quickly positioned, the positions of the stress protrusions can be quickly aligned according to the positions of the force application grooves, the tool can be quickly aligned to the screw, and the screw tightening efficiency is improved. And therefore, the tightening efficiency and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of flow drill screws, and in particular to a high-efficiency hot-melt flow drill screw for new energy vehicles. Background Art

[0002] According to the analysis of the Passenger Car Market Information Joint Conference CPCA, the world's automobile sales in the first quarter of 2024 reached 28.36 million units, of which new energy vehicles reached 4.49 million units, a year-on-year increase of 22%. The proportion of new energy vehicles in the world's automobiles has gradually increased, and new energy vehicles have promoted the development of the traditional automobile manufacturing industry.

[0003] Thermal Drill Screws, also known as Thermal Drilling Screws or Thermal Flow Screws, are a type of fastener used to connect materials. This type of screw does not require pre-drilling during installation. It can directly drill holes and use heat to melt the material to form threads, thereby achieving fixation. Nowadays, most new energy vehicles use this screw for partial assembly structures. The existing hot melt flow drill screws lack a certain degree of firmness after being tightened and fixed. They are easily loosened due to external vibrations, and the application scope of the screws involves the installation of exposed structures of new energy vehicles, so the anti-theft performance needs to be improved to ensure that they are not easily stolen. Therefore, there is a need for an efficient hot melt flow drill screw for new energy vehicles. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a high-efficiency hot melt flow drill screw for new energy vehicles, which solves the problem that the existing hot melt flow drill screws lack a certain degree of firmness after being tightened and fixed, and the anti-theft performance needs to be improved.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-efficiency hot melt flow drill screw for new energy vehicles, comprising: An integrated nut and screw head, wherein the screw head is fixedly connected to the top side of the nut, and the interior of the screw head is hollowed out and provided with a hexagonal force-bearing head, wherein the hexagonal force-bearing head is fixedly connected to the top side of the nut, so that when the screw needs to be removed and the force-bearing structure is damaged, the relatively soft screw head is cut off to expose the hexagonal hexagonal force-bearing head and replace the force-bearing structure, and a screw rod for tightening work is fixedly connected to the middle end of the bottom side of the nut; A nail head for drilling and fixing, the nail head is fixedly connected to the bottom side of the screw rod, and the nail head applies force to the connecting piece to drill a hole; A force-bearing protrusion is fixedly connected to the top side of the hexagonal force-bearing head to cooperate with the flow drill screw installation device and the force-applying groove opened on the outer periphery of the nut, serving as a force-applying structure for the flow drill screw installation work. The shape of the force-bearing protrusion is an irregular structure, and conventional tools cannot apply force, thereby playing an anti-theft role.

[0006] Preferably, it also includes a sealing outer ring, the top side of which is fixedly connected to the outer periphery of the bottom side of the nut, and the bottom side of the sealing outer ring is provided with a plurality of surrounding grooves.

[0007] Preferably, it further comprises a sealing outer ring, the top side of which is fixedly connected to the outer periphery of the bottom side of the nut, and a frosted layer is arranged on the bottom side of the sealing outer ring.

[0008] Preferably, the included angle between the top of the screw and the section of the bottom side of the nut is α°, and the top of the screw and the side close to the inner circumference of the sealing outer ring form a receiving groove to accommodate the material overflowing from the drilling and solidifying.

[0009] A high-efficiency hot melt flow drill screw for new energy vehicles, comprising: An integrated nut and screw head, wherein the screw head is fixedly connected to the top side of the nut, a screw rod for tightening is fixedly connected to the middle end of the bottom side of the nut, and a nail head for drilling and fixing is fixedly connected to the bottom side of the screw rod, and the nail head applies force to the connecting piece to drill a hole; The top side of the screw head is fixedly connected with a force-bearing protrusion, which is used to cooperate with the flow drill screw installation device and the force-applying groove opened on the outer periphery of the nut, as a force-applying structure for the flow drill screw installation work. The shape of the force-bearing protrusion is a special-shaped structure, and conventional tools cannot apply force, so as to play an anti-theft role; An accommodating groove is provided at the top of the outer wall of the screw so that after the screw enters the drilled hole, the melted material enters the accommodating groove and solidifies, thereby playing a role of limiting and fixing. The specification of the accommodating groove can be selected from any one of a circular groove and a vertical groove.

[0010] Preferably, it also includes an abutting inner ring, the top side of which is fixedly connected to the inner periphery of the bottom side of the nut and sleeved on the top end of the outer wall of the screw, and the bottom side of the abutting inner ring is surrounded by a plurality of grooves and a plurality of protrusions.

[0011] Preferably, it also includes an abutting inner ring, the top side of which is fixedly connected to the inner circumference of the bottom side of the nut and sleeved on the top end of the outer wall of the screw, and the bottom side of the abutting inner ring is provided with a spiral groove.

[0012] A high-efficiency hot melt flow drill screw for new energy vehicles, comprising: An integrated nut and screw head, wherein the screw head is fixedly connected to the top side of the nut, and a reinforcing screw for tightening is fixedly connected to the middle end of the bottom side of the nut, wherein the middle end radius of the reinforcing screw is larger than the top end radius and the bottom end radius of the reinforcing screw, and the longitudinal section of the reinforcing screw is spindle-shaped, so as to expand the size of the drill hole and increase the surface area of ​​the reinforcing screw, so as to improve the adhesion of the melted material after solidification, and a nail head for drilling and fixing is fixedly connected to the bottom side of the reinforcing screw, and the nail head applies force to the connecting piece to drill a hole; A force-bearing protrusion is fixedly connected to the top side of the screw head to cooperate with the flow drill screw installation device, and cooperate with the multiple force-applying grooves opened on the outer periphery of the nut and the screw head to increase the force points of the flow drill screw installation work to improve the drilling force and strength of the flow drill screw. The shape of the force-bearing protrusion is an irregular structure, and conventional tools cannot apply force, so as to play an anti-theft role.

[0013] Preferably, the specification of the reinforcing nail head is any one of a triangular head specification or a spiral head specification.

[0014] Preferably, it also includes an external protective gasket made of rubber as raw material, the inner circumference of the external protective gasket corresponds to the outer circumference of the nut, and is tightly sleeved on the outer circumference of the nut.

[0015] The present invention provides a high-efficiency hot melt flow drill screw for new energy vehicles. It has the following beneficial effects: 1. The present invention enables the matching tightening tool to synchronously apply force to the screw through multiple force-applying grooves and force-bearing protrusions, so as to maximize the output of the external tool and quickly position the screw. The position of the force-bearing protrusion can be quickly aligned according to the position of the force-applying groove, so that the tool can quickly align with the screw, thereby accelerating the tightening efficiency and accuracy.

[0016] 2. The present invention can further fix the screw by melted residual material after tightening, which greatly improves the firmness after tightening. The tightening force-bearing part of the screw adopts a special-shaped structure, so that conventional tools cannot apply force, thereby playing an anti-theft role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional Figure 1 ; Figure 2 The sealing outer ring structure of the present invention is schematically shown in FIG. Figure 1 ; Figure 3 The sealing outer ring structure of the present invention is schematically shown in FIG. Figure 2 ; Figure 4 It is a schematic diagram of the position of the hexagonal force-bearing head of the present invention; Figure 5It is a schematic diagram of the angle structure between the screw rod and the screw head of the present invention; Figure 6 The three-dimensional Figure 2 ; Figure 7 A schematic diagram of a receiving groove of the present invention; Figure 8 The abutment inner ring of the present invention is shown in FIG. Figure 1 ; Fig. 9 The abutment inner ring of the present invention is shown in FIG. Figure 2 ; Fig.10 The three-dimensional Figure 3 ; Fig.11 The reinforced nail head structure of the present invention is shown in FIG. Figure 1 ; Fig.12 The reinforced nail head structure of the present invention is shown in FIG. Figure 2 ; Fig.13 It is a structural schematic diagram of the reinforcing screw of the present invention; Fig.14 It is a schematic structural diagram of the external protective gasket of the present invention.

[0018] Among them, 1. nut; 2. screw head; 3. screw rod; 4. nail head; 5. force-bearing protrusion; 6. hexagonal force-bearing head; 7. sealing outer ring; 8. accommodating groove; 9. abutting inner ring; 10. strengthening screw rod; 11. strengthening nail head; 12. external protective gasket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: Please see attached Figure 1 -Attached Figure 5 The embodiment of the present invention provides a high-efficiency hot melt flow drill screw for new energy vehicles, including: An integrated nut 1 and screw head 2, the screw head 2 is fixedly connected to the top side of the nut 1, and the interior of the screw head 2 is hollowed out and provided with a hexagonal force-bearing head 6, the screw head 2 is made of aluminum alloy as a raw material, and is more easily dug out by ordinary tools to improve its convenience, the hexagonal force-bearing head 6 is fixedly connected to the top side of the nut 1, so that when the screw needs to be disassembled and the force-bearing structure is damaged, the relatively soft screw head 2 is cut off to expose the hexagonal hexagonal force-bearing head 6, and the force-bearing structure is replaced, the middle end of the bottom side of the nut 1 is fixedly connected with a screw rod 3 for tightening work, and is assembled in conjunction with the new energy vehicle material structure; A nail head 4 for drilling and fixing, the nail head 4 is fixedly connected to the bottom side of the screw rod 3, and the nail head 4 applies force to the connecting piece to drill a hole; A force-bearing protrusion 5 is fixedly connected to the top side of the hexagonal force-bearing head 6, which is used to cooperate with the flow drill screw installation device and the force-applying groove opened on the outer periphery of the nut 1. As a force-applying structure for the flow drill screw installation work, the force-bearing protrusion 5 is shaped as a special-shaped structure, and conventional tools cannot apply force, so as to play an anti-theft role. The corresponding matching tool also has a force-applying groove for applying force to the force-bearing protrusion 5, and a force-applying member that can be inserted into the force-applying groove, so that when rotating, force is applied to the screw synchronously through multiple force-applying grooves and the force-bearing protrusion 5, so as to maximize the output of the external tool and quickly position the screw. According to the position of the force-applying groove, the position of the force-bearing protrusion 5 can be quickly aligned, so that the tool can quickly align with the screw, thereby speeding up the tightening efficiency and accuracy.

[0021] It also includes a sealing outer ring 7, the top side of which is fixedly connected to the bottom periphery of the nut 1, and the bottom side of the sealing outer ring 7 is provided with a plurality of circumferential grooves or a frosted layer, so that it is easier to dig out annular pits on the surface of the material during the tightening process of the screw, and the sealing outer ring 7 is sunk into the inside of the pit, thereby achieving the effect of improving the sealing and reducing the entry of external air into the interior of the screw hole.

[0022] The included angle between the top of the screw rod 3 and the bottom side of the nut 1 is α°90<α<180, and the top of the screw rod 3 and the side close to the inner circumference of the sealing outer ring 7 form a receiving groove to accommodate the material overflowing from the drilling and solidifying, to prevent the sealing outer ring 7 from being unable to dig out a pit, to avoid obstruction after the screw is turned, and to guide the remaining material to solidify into a structure with a climbing angle, thereby improving the stability of the screw after tightening.

[0023] Embodiment 2: Different from the above-mentioned embodiment, please refer to the attached Figure 6 -Attached Fig. 9 This embodiment provides a high-efficiency hot melt flow drill screw for new energy vehicles, including: An integrated nut 1 and screw head 2, the screw head 2 is fixedly connected to the top side of the nut 1, and a screw rod 3 for tightening is fixedly connected to the middle end of the bottom side of the nut 1. In conjunction with the new energy vehicle material structure assembly, a nail head 4 for drilling and fixing is fixedly connected to the bottom side of the screw rod 3, and the nail head 4 applies force to the connector to drill a hole; A force-bearing protrusion 5 is fixedly connected to the top side of the screw head 2, which is used to cooperate with the flow drill screw installation device and the force-applying groove opened on the outer periphery of the nut 1. As a force-applying structure for the flow drill screw installation work, the force-bearing protrusion 5 is in the shape of a special-shaped structure, and conventional tools cannot apply force, so as to play an anti-theft role. The corresponding matching tool is also provided with a force-applying groove for applying force to the force-bearing protrusion 5, and a force-applying member that can be inserted into the force-applying groove, so that when rotating, force is applied to the screw synchronously through multiple force-applying grooves and the force-bearing protrusion 5, so as to maximize the output of the external tool, and to quickly position the screw, and the position of the force-applying protrusion 5 can be quickly aligned according to the position of the force-applying groove, so that the tool can quickly align with the screw, thereby accelerating the tightening efficiency and accuracy; A receiving groove 8 is provided at the top of the outer wall of the screw 3 so that after the screw 3 enters the drilled hole, the melted material enters the receiving groove 8 and solidifies, thereby playing a role of limiting and fixing. The specification of the receiving groove 8 can be any one of a circular groove and a vertical groove, so that the screw is not easy to rotate and is fixed, thereby improving the firmness of the screw after tightening.

[0024] It also includes an abutting inner ring 9, the top side of which is fixedly connected to the inner circumference of the bottom side of the nut 1 and is sleeved on the top end of the outer wall of the screw 3. The bottom side of the abutting inner ring 9 is surrounded by a plurality of grooves and a plurality of protrusions or a spiral groove, thereby expanding the surface area of ​​the bottom side of the abutting inner ring 9. After the screw is completely drilled into the screw hole, the melted residual material overflows the screw hole, solidifies and forms between the screw hole surface and the inner ring, and adheres to the bottom side of the abutting inner ring 9, so as to increase the gripping force by utilizing the expanded surface area of ​​the bottom side of the abutting inner ring 9, thereby further improving the firmness of the screw after tightening.

[0025] Embodiment three: Different from the above-mentioned embodiment, please refer to the attached Fig.10 -Attached Fig.13 This embodiment provides a high-efficiency hot melt flow drill screw for new energy vehicles, including: An integrated nut 1 and screw head 2, the screw head 2 is fixedly connected to the top side of the nut 1, and a reinforcing screw 10 for tightening work is fixedly connected to the middle end of the bottom side of the nut 1. The reinforcing screw 10 is assembled with the material structure of the new energy vehicle. The middle end radius of the reinforcing screw 10 is larger than the top end radius and the bottom end radius of the reinforcing screw 10, and the longitudinal section of the reinforcing screw 10 is spindle-shaped to expand the size of the drill hole and increase the surface area of ​​the reinforcing screw 10 to improve the adhesion of the melted material after solidification. The bottom side of the reinforcing screw 10 is fixedly connected with a nail head 4 for drilling and fixing, and the nail head 4 applies force to the connecting piece to drill a hole; Among them, comparing the screw 3 in the above-mentioned embodiment 1 and embodiment 2, the cross-sectional diameter specification of the reinforcing screw 10 is larger than the diameter specification of the screw 3, and the thread groove opened on the reinforcing screw 10 is deeper and wider to support the screw in drilling higher strength materials. After the material is drilled, the melted residual material in the hole solidifies and can wrap the spindle-shaped reinforcing screw 10. The characteristics of being thick in the middle and thin at both ends can make the screw stable when connected and fixed.

[0026] A force-bearing protrusion 5 is fixedly connected to the top side of the screw head 2 to cooperate with the flow drill screw installation device, and cooperate with the multiple force-applying grooves opened on the outer periphery of the nut 1 and the screw head 2 to increase the force points of the flow drill screw installation work to improve the drilling force and strength of the flow drill screw. The shape of the force-bearing protrusion 5 is a special-shaped structure, and conventional tools cannot apply force to play an anti-theft role. The corresponding matching tool also has a force-applying groove for applying force to the force-bearing protrusion 5, and a force-applying member that can be inserted into the force-applying groove, so that when rotating, force is applied to the screw synchronously through multiple force-applying grooves and the force-bearing protrusion 5, so as to maximize the output of the external tool and quickly position the screw. According to the position of the force-applying groove, the position of the force-bearing protrusion 5 can be quickly aligned, so that the tool can quickly align with the screw, thereby speeding up the tightening efficiency and accuracy.

[0027] The specification of the reinforced nail head 11 is selected from either a triangular head specification or a spiral head specification to improve the efficiency and strength of opening the screw hole, and with multiple force grooves, it can provide a stable drilling force and prevent the phenomenon of screw thread slippage caused by insufficient force points when tightening the screw.

[0028] Based on the above-mentioned embodiment 1, embodiment 2 and embodiment 3, please refer to the attached Fig.14 , and also includes an external protective gasket 12 made of rubber as raw material. The inner circumference of the external protective gasket 12 corresponds to the outer circumference specification of the nut 1, and is sleeved tightly on the outer circumference of the nut 1, so that after the screw is tightened and fixed, the force groove on the nut 1 is used as a clamping point to squeeze the convex structure on the inner circumference of the protective gasket into the force groove for clamping and fixing, and tightly adhere to the surface of the screw located on the outer periphery of the object to form a protective circle, reduce external moisture from entering the connection, and reduce the occurrence of corrosion.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency hot melt flow drill screw for new energy vehicles, characterized in that: include: An integrated nut (1) and a screw head (2), wherein the screw head (2) is fixedly connected to the top side of the nut (1), and the interior of the screw head (2) is hollowed out and provided with a hexagonal force-bearing head (6), wherein the hexagonal force-bearing head (6) is fixedly connected to the top side of the nut (1), so that when the screw needs to be removed and the force-bearing structure is damaged, the relatively soft screw head (2) is cut off to expose the hexagonal hexagonal force-bearing head (6), and the force-bearing structure is replaced; a screw rod (3) for tightening work is fixedly connected to the middle end of the bottom side of the nut (1); A nail head (4) used for drilling and fixing, the nail head (4) being fixedly connected to the bottom side of the screw rod (3), and the nail head (4) exerts force on the connecting piece to drill a hole; The top side of the hexagonal force-bearing head (6) is fixedly connected with a force-bearing protrusion (5) for cooperating with the flow drill screw installation device and the force-bearing groove provided on the periphery of the nut (1) to serve as a force-bearing structure for the flow drill screw installation work. The force-bearing protrusion (5) is in the shape of a special-shaped structure and conventional tools cannot apply force, thereby playing an anti-theft role.

2. The high-efficiency hot melt flow drill screw for new energy vehicles according to claim 1 is characterized in that: It also comprises a sealing outer ring (7), the top side of which is fixedly connected to the outer periphery of the bottom side of the nut (1), and the bottom side of the sealing outer ring (7) is provided with a plurality of circumferential grooves.

3. The high-efficiency hot melt flow drill screw for new energy vehicles according to claim 1 is characterized in that: It also comprises a sealing outer ring (7), the top side of the sealing outer ring (7) being fixedly connected to the outer periphery of the bottom side of the nut (1), and the bottom side of the sealing outer ring (7) being provided with a frosted layer.

4. A high-efficiency hot melt flow drill screw for new energy vehicles according to any one of claims 2 and 3, characterized in that: The included angle between the top of the screw (3) and the section of the bottom side of the nut (1) is α° (90<α<180), and the top of the screw (3) and the side close to the inner circumference of the sealing outer ring (7) form a receiving groove to accommodate the material overflowed from the drilling hole and solidified.

5. A high-efficiency hot melt flow drill screw for new energy vehicles, characterized in that: include: An integrated nut (1) and a screw head (2), wherein the screw head (2) is fixedly connected to the top side of the nut (1), a screw rod (3) for tightening is fixedly connected to the middle end of the bottom side of the nut (1), and a nail head (4) for drilling and fixing is fixedly connected to the bottom side of the screw rod (3), and the nail head (4) applies force to the connecting piece to drill a hole; The top side of the screw head (2) is fixedly connected with a force-bearing protrusion (5) for cooperating with the flow drill screw installation device and the force-bearing groove provided on the outer periphery of the nut (1) to serve as a force-bearing structure for the flow drill screw installation work. The force-bearing protrusion (5) is in the shape of a special-shaped structure and conventional tools cannot apply force, thereby playing an anti-theft role. The top end of the outer wall of the screw (3) is provided with a receiving groove (8) so that after the screw (3) enters the drilled hole, the melted material enters the receiving groove (8) and solidifies, thereby playing a role of limiting and fixing. The specification of the receiving groove (8) can be selected from any one of a circular groove and a vertical groove.

6. The high-efficiency hot melt flow drill screw for new energy vehicles according to claim 5, characterized in that: It also includes an abutting inner ring (9), the top side of which is fixedly connected to the inner circumference of the bottom side of the nut (1) and sleeved on the top end of the outer wall of the screw rod (3), and the bottom side of the abutting inner ring (9) is surrounded by a plurality of grooves and a plurality of protrusions.

7. The high-efficiency hot melt flow drill screw for new energy vehicles according to claim 5, characterized in that: It also comprises an abutting inner ring (9), the top side of which is fixedly connected to the inner circumference of the bottom side of the nut (1) and sleeved on the top end of the outer wall of the screw rod (3), and the bottom side of which is provided with a spiral groove.

8. A high-efficiency hot melt flow drill screw for new energy vehicles, characterized in that: include: An integrated nut (1) and a screw head (2), wherein the screw head (2) is fixedly connected to the top side of the nut (1), and a reinforcing screw (10) for tightening is fixedly connected to the middle end of the bottom side of the nut (1), the middle end radius of the reinforcing screw (10) is larger than the top end radius and the bottom end radius of the reinforcing screw (10), and the longitudinal section of the reinforcing screw (10) is spindle-shaped, so as to expand the size of the drilled hole and increase the surface area of ​​the reinforcing screw (10) to improve the adhesion of the molten material after solidification, and the bottom side of the reinforcing screw (10) is fixedly connected to a nail head (4) for drilling and fixing, and the nail head (4) applies force to the connecting piece to drill a hole; The top side of the screw head (2) is fixedly connected with a force-bearing protrusion (5) for cooperating with a flow drill screw installation device and cooperating with a plurality of force-applying grooves provided on the periphery of the nut (1) and the screw head (2) to increase the force-applying points of the flow drill screw installation work so as to improve the drilling force and strength of the flow drill screw. The shape of the force-bearing protrusion (5) is a special-shaped structure, and conventional tools cannot apply force, so as to play an anti-theft role.

9. The high-efficiency hot melt flow drill screw for new energy vehicles according to claim 8, characterized in that: The specification of the reinforcing nail head (11) is selected from any one of a triangular head specification and a spiral head specification.

10. A high-efficiency hot melt flow drill screw for new energy vehicles according to any one of claims 1, 6 or 8, characterized in that: It also includes an external protective gasket (12) made of rubber as a raw material, the inner circumference of the external protective gasket (12) corresponds to the outer circumference of the nut (1) and is sleeved tightly on the outer circumference of the nut (1).

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