fluted hand-tightened padlock screw

Abstract

The utility model discloses a kind of flower tooth hand twist gasket screws, it includes twist part and screw rod part, several heat dissipation drive grooves are distributed on the twist part, pad high platform is equipped at the connecting position of screw rod part and twist part, pad high platform is equipped with gasket near the screw rod part side, the twist part, pad high platform and screw rod part are integrally connected structure.The utility model's structure design is reasonable, adopts integrally connected structure, completely solves the problem that traditional plastic cladding type hand twist screw head is easy to fall off, and significantly improves overall strength and reliability.Add pad high platform, increase the spacing between twist part and workpiece surface, bring convenient for operation;Gasket provides pressure dispersion automatically when being screwed, protect workpiece surface not to be collapsed, and protection effect is good.Heat dissipation drive groove is machined on the surface of twist part, not only increases the heat dissipation surface area, and the structure of groove is conducive to air circulation;At the same time, twist can also be carried out by tool insertion heat dissipation drive groove, meet different use demand.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, specifically to a toothed hand-tightening washer screw. Background Technology

[0002] Screws are a common type of fastener used in daily life and industry. Hand-tightening screws can be used between two workpieces that need to be frequently disassembled or connected, allowing for easy disassembly or connection of the two workpieces by hand without the aid of tools.

[0003] Publication No. CN119664774A, entitled "Hand-Tightening Screw," discloses a hand-tightening screw, comprising a screw body and a hand-tightening part. The screw body consists of a screw rod and a nut. The nut has a radial structure, with a notch at the end of each radial strip. The hand-tightening part is fixed to the screw body and completely encloses the nut. In this invention, the hand-tightening part is fixed to the screw body and completely encloses the nut. The hand-tightening part is integrally formed, completely enclosing the nut, thus preventing it from detaching from the screw body. The radial structure of the nut, with a notch at the end of each radial strip, improves the connection between the nut and the hand-tightening part, resulting in better stability. The notches of adjacent radial strips are in opposite directions, ensuring good force distribution between the nut and the hand-tightening part regardless of whether the screw is turned clockwise or counterclockwise. While this design solves the problem of plastic head detachment to some extent, the plastic head still tends to detach after a period of use; furthermore, it lacks heat dissipation functionality. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a toothed hand-tightening washer screw with a reasonable structural design, a firm connection, and good heat dissipation.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A type of hand-tightened washer screw with a floral tooth pattern includes a tightening part and a screw part connected to the tightening part. The tightening part has a plurality of heat dissipation drive grooves distributed on it. A raised platform is provided at the connection position between the screw part and the tightening part. A washer is provided on the side of the raised platform near the screw part. The tightening part, the raised platform and the screw part are integrally connected structures.

[0007] As a preferred embodiment of this utility model, the outer dimensions of the gasket are larger than the dimensions of the raised platform, thereby increasing the contact area, dispersing compressive stress, and preventing the workpiece surface from being crushed.

[0008] As a preferred embodiment of this utility model, the end of the screw near the washer is provided with a relief groove, so that the thread cutting naturally ends at this point, avoiding burrs.

[0009] As a preferred embodiment of this utility model, the edge of the raised platform near the gasket is rounded to avoid sharp angles, eliminate stress concentration, and prevent the gasket from cracking.

[0010] As a preferred embodiment of this utility model, the outer peripheral surface of the turning part is provided with a toothed pattern to increase the coefficient of friction and achieve tool-free hand turning.

[0011] As a preferred embodiment of this utility model, the edge of the twisting part is provided with an inclined surface, which reduces the sharp edge at the top, improves the comfort of operation, and makes the appearance more refined.

[0012] As a preferred embodiment of this utility model, the number of heat dissipation drive slots is six, which are distributed radially to facilitate air circulation and remove heat.

[0013] As a preferred embodiment of this utility model, the raised platform and the shim are integrally connected to form a whole component, which completely prevents the shim from falling off, eliminates the need for additional shims, and improves assembly efficiency.

[0014] The beneficial effects of this utility model are as follows: The structure of this utility model is reasonably designed, adopting an integrated connection structure, which completely solves the problem of easy detachment of traditional plastic-coated hand-tightening screw heads, and significantly improves overall strength and reliability. A raised platform is added to increase the distance between the tightening part and the workpiece surface, making operation more convenient; the gasket automatically provides pressure dispersion when tightening, protecting the workpiece surface from crushing, providing good protection. A heat dissipation drive groove is machined on the surface of the tightening part, which not only increases the heat dissipation surface area, but the structure of the groove also facilitates air circulation; at the same time, tools can be inserted into the heat dissipation drive groove for tightening, meeting different usage needs.

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the left-side structure of this utility model. Detailed Implementation

[0019] See Figures 1 to 3 This embodiment provides a toothed hand-tightening washer screw, which includes a tightening part 1 and a screw part 2 connected to the tightening part 1.

[0020] The rotating part 1 is provided with a plurality of heat dissipation drive grooves 11. In this embodiment, the number of heat dissipation drive grooves 11 is preferably six, which are radially distributed, that is, radiating outward from the center of the rotating part 1, which facilitates air circulation to remove heat.

[0021] A raised platform 3 is provided at the connection position between the screw part 2 and the tightening part 1. The raised platform 3 is added to increase the distance between the tightening part 1 and the workpiece surface, so as to facilitate the operation of the tightening part 1.

[0022] The raised platform 3 is provided with a gasket 4 on the side near the screw part 2. The screwing part 1, the raised platform 3, and the screw part 2 are integrally connected structures. They can be integrally formed from a single piece of metal material through forging, turning, or other processes, without welding, bonding, or assembly connection points. The connection is firm and not easy to break. The overall structure can withstand greater loads and torques, and has good heat conduction and dissipation effects. Preferably, the raised platform 3 and the gasket 4 are also integrally connected structures, forming a single component, completely preventing the gasket 4 from falling off, eliminating the need for additional gasket 4 installation, and improving assembly efficiency.

[0023] Preferably, the gasket 4 is larger than the platform 3, increasing the contact area. The larger gasket 4 area can significantly disperse compressive stress, preventing crushing, deformation, or surface damage to the workpiece. At the same time, the larger contact area also increases friction, which helps resist screw loosening caused by vibration.

[0024] The raised platform 3 has a rounded corner on the side edge near the gasket 4. The rounded corner smoothly transitions to replace the sharp edge, avoiding the sharp edge from hitting the gasket 4 and causing the gasket 4 to crack.

[0025] A relief groove 5 is provided at one end of the screw section 2 near the washer 4, so that the thread cutting naturally ends at this point, avoiding burrs.

[0026] The outer circumferential surface of the screwing part 1 is machined with uniformly or unevenly distributed raised tooth-like structures to form a serrated pattern 12. When the user pinches the screwing part 1 with their fingers or wraps their palm to apply torque, the serrated pattern 12 significantly increases the friction between the fingers or palm and the contact surface of the screwing part 1, enabling tool-free hand-tightening, making tightening and loosening easier and faster. At the same time, the serrated pattern 12 structure itself also slightly increases the heat dissipation surface area, improving the heat dissipation effect.

[0027] An inclined surface 13 is provided at the edge of the twisting part 1, which can reduce the sharp edge at the top, improve the operating comfort, and make the appearance more refined.

[0028] In use, the integrated structure effectively solves the problem of traditional plastic-coated hand-tightening screw heads easily falling off, significantly improving overall strength and reliability. Furthermore, being made entirely of metal, the screw-operated part 1 and its heat dissipation drive groove 11 quickly dissipate heat conducted from the screw part 2, resulting in excellent heat dissipation. Preferably, a through hole (not shown in the figure) axially penetrating the screw-operated part 1 and the screw part 2 can be provided, further enhancing heat dissipation.

[0029] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model. As described in the above embodiments of this utility model, other screws obtained using the same or similar structures are all within the protection scope of this utility model.

Claims

1. A flower tooth hand-tightening washer screw comprising a screwing portion and a screw shaft portion connected to the screwing portion, characterized in that, The rotating part has several heat dissipation drive slots distributed on it. A raised platform is provided at the connection position between the screw part and the rotating part. A shim is provided on the side of the raised platform near the screw part. The rotating part, the raised platform and the screw part are an integral connection structure.

2. The petal hand-tightened pad screw according to claim 1, characterized in that: The dimensions of the gasket are larger than the dimensions of the raised platform.

3. The petal hand-tightened pad screw according to claim 1, wherein: The screw section has a shear groove at one end near the washer.

4. The petal hand-tightened pad screw according to claim 1, wherein: The raised platform has a rounded corner on the side edge near the pad.

5. The petal hand-tightened pad screw according to claim 1, wherein: The outer circumferential surface of the twisting part is provided with a floral pattern.

6. The petal hand-tightened pad screw according to claim 5, characterized in that: The edge of the twisting part is provided with an inclined surface.

7. The star hand-tightened pad screw of any one of claims 1-6, wherein: The number of heat dissipation drive slots is six, which are distributed radially.

8. The star hand-tightened padlock screw according to any one of claims 1-6, characterized in that: The raised platform and the pad are an integrally connected structure.

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