Cyclone anti-theft nut for shared balance car

Abstract

The whirlwind anti-theft nut for the shared balance car comprises a base, a contact seat is fixedly arranged on the upper surface of the base, internal threads are formed in the inner side surface of the contact seat, and an abutting face, a locking face and a sliding guide face are formed in the outer side surface of the upper end of the contact seat. An anti-falling internal corner is arranged at the junction of the locking face and the sliding guide face, and a receding external corner is arranged on the outer surface of the base on the side, away from the anti-falling internal corner, of the sliding guide face. According to the whirlwind anti-theft nut for the shared balance car, through the unique design of the abutting face, the locking face and the sliding guide face and the arrangement of the anti-disengaging internal corner, the whirlwind anti-theft nut is difficult to disassemble by a common tool, when a thief tries to screw the nut, applied force cannot be effectively transmitted to a threaded part, and therefore the nut is prevented from being easily screwed off, and the anti-theft effect is achieved. The safety of key parts of the shared balance car is greatly improved, the theft risk is effectively reduced, and the asset safety of an operating enterprise is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-theft nuts, in particular to a cyclone anti-theft nut for a shared balance car. Background Art

[0002] In today's era, the rise of the sharing economy model has brought about great changes in people's travel methods. Shared balance bikes, as an important member of the model, have occupied a place in the field of short-distance travel in cities. Their convenience and environmental protection make them very popular. The number of shared balance bikes is increasing day by day, and they are widely distributed in every corner of the city. However, while providing convenience to people, shared balance bikes also face many severe challenges, among which the anti-theft problem of parts is particularly prominent. Traditional nuts, as commonly used components in mechanical connections, expose serious safety hazards in the application scenarios of shared balance bikes. Due to their simple structure, they only rely on basic thread matching for tightening. Criminals can easily disassemble them with conventional tools. In the operation practice of shared balance bikes, critical accidents often occur due to the nuts being easily unscrewed. Incidents of stolen parts, for example, wheels, axles and other important components, once stolen, will not only make the shared balance car instantly lose its function and unable to continue to provide services to users, but will also cause serious damage to the vehicle, requiring the operating company to invest a lot of manpower, material and financial resources to repair or replace it. Judging from the existing anti-theft nuts on the market, although some products have anti-theft functions to a certain extent, it is still difficult to meet the special needs of shared balance cars. Some anti-theft nuts are too complicated in design and the installation process is cumbersome, requiring professional tools and a high level of technology. This undoubtedly increases the difficulty and time cost of daily maintenance and repairs of shared balance cars, while the anti-theft mechanism of other anti-theft nuts is not stable enough and can be easily cracked by thieves with certain technical means, thus losing the anti-theft effect. Utility Model Content

[0003] The purpose of the present utility model is to provide a cyclone anti-theft nut for a shared balance car, so as to solve the problem that the anti-theft nut proposed in the above background technology is too complicated in design, the installation process is cumbersome, and professional tools and a high level of technical assistance are required for its use.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cyclone anti-theft nut for a shared balance car, comprising a base, a contact seat fixedly provided on the upper surface of the base, and an internal thread provided on the inner surface of the contact seat, a resistance surface, a locking surface and a guide sliding surface provided on the outer surface of the upper end of the contact seat, and an anti-slip inner corner provided at the junction of the locking surface and the guide sliding surface, and a yielding outer corner provided on the outer surface of the base on the side of the guide sliding surface away from the anti-slip inner corner.

[0005] Preferably, the angle between the abutting surface and the locking surface is an acute angle, and the abutting surface and the lower surface of the base are parallel to each other.

[0006] By adopting the above technical solution, the nut can better withstand the axial force when tightening, and the contact surface is parallel to the lower surface of the base to ensure uniform and stable force.

[0007] Preferably, the connection points between the abutting surface, the locking surface, the guide sliding surface and the contact seat are all designed with arc chamfers.

[0008] By adopting the above technical solution, the arc chamfer can avoid stress concentration, reduce the risk of structural damage caused by stress concentration when the nut is subjected to vibration or external force impact, and extend the service life of the nut.

[0009] Preferably, the abutting surface, locking surface and sliding guide surface of the contact seat surface form concave grooves, and the grooves on the contact seat surface are distributed at equal angles, and the contact seat is designed to be a truncated cone with a smaller upper portion and a larger lower portion.

[0010] By adopting the above technical solution, the frustum-shaped design enables the nut to better adapt to different installation spaces and component shapes during installation, facilitating installation and positioning. At the same time, it can also serve as a certain anti-disassembly warning in appearance, making it difficult for thieves to find a fulcrum for illegal operations.

[0011] Preferably, the angle between the locking surface and the guide sliding surface is an acute angle, and the guide sliding surface is inclined with the upper end facing the center of the contact seat.

[0012] By adopting the above technical solution, the setting of the acute angle and the inclined direction of the guide sliding surface can effectively decompose the external force applied by the thief, making it difficult for conventional tools to produce effective loosening torque on the nut, thereby greatly improving the anti-theft performance of the nut.

[0013] Preferably, the male corner for making way is designed to be arc-shaped, and the opening of the arc-shaped male corner for making way is arranged toward the center of the contact seat.

[0014] By adopting the above technical solution, the arc-shaped positive corner will hinder the effective contact and force between the tool and the nut, making it impossible to successfully complete the loosening action. The anti-theft mechanism of the nut is strengthened from multiple angles, reducing the risk of theft of shared balance car parts.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the cyclone anti-theft nut for the shared balance car:

[0016] 1. The unique design of the contact surface, locking surface, and guide surface, as well as the anti-slip internal angle, makes it difficult to disassemble the nut with ordinary tools. When a thief attempts to turn the nut, the force cannot be effectively transmitted to the threaded part, thus preventing the nut from being easily unscrewed. This greatly improves the security of key components of shared balance scooters, effectively reduces the risk of theft, and protects the asset security of the operating company.

[0017] Furthermore, despite its anti-theft function, the nut does not require special complex tools or professional skills when installing. Its basic threaded connection method is similar to that of a conventional nut. Repair personnel or operation and maintenance personnel can complete the installation operation in a relatively short time, which will not impose an excessive burden on the daily maintenance work of the shared balance scooter.

[0018] 2. The contact seat is designed in a frustum with a small top and a large bottom, and the arc chamfer design at the connection between each surface and the contact seat enables the nut to fit more smoothly with the supporting components during installation, reducing jamming and friction during installation, improving installation efficiency, and reducing labor costs and maintenance time;

[0019] Furthermore, the guide surface is tilted with its upper end toward the center of the contact seat. This special tilt angle means that when a thief attempts to tighten the nut using a conventional wrench or other tool, the contact between the tool and the guide surface becomes unstable and inclined. Since an effective force perpendicular to the thread axis cannot be generated, the force is decomposed on the guide surface, with most of the force dissipated along the tilt direction of the guide surface and difficult to convert into effective torque to drive the nut to rotate, thereby effectively preventing theft attempts.

[0020] Furthermore, the yielding male angle is designed to be arc-shaped and its arc-shaped opening faces the center of the contact seat. This design forms a special space restriction structure on the outside of the nut. When thieves try to use tools of larger size or special shape to operate the nut, the yielding male angle will hinder the smooth entry or rotation of the tool. Some tools that try to clamp the nut from the side and twist it forcefully will not be able to fully fit the surface of the nut due to the existence of the yielding male angle, or they will be blocked by the male angle during the rotation process and cannot complete the complete rotation movement and slip, making it impossible to effectively apply sufficient torque to loosen the nut, effectively resisting the thieves' attempts to disassemble it by unconventional means. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the base, contact seat and internal thread connection of the utility model;

[0023] Figure 3This is a schematic diagram of the three-dimensional structure of the connection section of the base, contact seat and locking surface of the utility model;

[0024] Figure 4 It is a schematic diagram of the overall top view of the structure of the utility model.

[0025] In the figure: 1. Base; 2. Contact seat; 3. Internal thread; 4. Contact surface; 5. Locking surface; 6. Sliding surface; 7. Anti-slip inner corner; 8. Give way outer corner. DETAILED DESCRIPTION

[0026] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-4 The utility model provides a technical solution: a cyclone anti-theft nut for a shared balance car, a base 1, a contact seat 2 is fixedly provided on the upper surface of the base 1, and the inner surface of the contact seat 2 is provided with an internal thread 3, and the outer surface of the upper end of the contact seat 2 is provided with a contact surface 4, a locking surface 5 and a guide sliding surface 6, and an anti-slip inner corner 7 is provided at the junction of the locking surface 5 and the guide sliding surface 6, and a yielding outer corner 8 is provided on the outer surface of the base 1 on the side of the guide sliding surface 6 away from the anti-slip inner corner 7;

[0028] The included angle between the contact surface 4 and the locking surface 5 is an acute angle, and the contact surface 4 and the lower surface of the base 1 are parallel to each other;

[0029] The connection points between the contact surface 4, the locking surface 5 and the guide sliding surface 6 and the contact seat 2 are all designed with arc chamfers;

[0030] The contact surface 4, locking surface 5 and guide surface 6 on the surface of the contact seat 2 form an inwardly concave groove, and the grooves on the surface of the contact seat 2 are distributed at equal angles, and the contact seat 2 is designed to be a truncated cone with a small upper part and a large lower part;

[0031] The angle between the locking surface 5 and the guide sliding surface 6 is an acute angle, and the guide sliding surface 6 is inclined with the upper end facing the center of the contact seat 2;

[0032] The male corner 8 is designed to be arc-shaped, and the opening of the arc-shaped male corner 8 is arranged toward the center of the contact seat 2;

[0033] When installing the cyclone anti-theft nut, repair personnel or operation and maintenance personnel first align the internal thread 3 of the nut with the screw of the shared balance car component, and then use a tool with a protrusion that matches the groove shape formed by the interference surface 4, the locking surface 5, and the guide surface 6 to engage with the groove on the surface of the contact seat 2, and rotate the nut in the direction of thread tightening;

[0034] After the nut is installed, an anti-theft performance test is carried out. Various common tools, such as standard wrenches, socket wrenches, etc., are used to try to loosen the nut. Due to the special inclined design of the guide sliding surface 6, the tool cannot exert an effective force perpendicular to the thread axis when contacting the guide sliding surface 6. The force is decomposed and dissipated, and the nut cannot be driven to rotate. At the same time, when a tool with a special shape or a larger size is used to try to operate from the side, the yielding male angle 8 will hinder the tool from driving the contact seat 2 to rotate, making it impossible for the tool to fully fit the nut surface or slipping during rotation, thereby verifying the anti-theft performance of the nut.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cyclone anti-theft nut for a shared balance car, comprising a base (1), a contact seat (2) fixedly provided on the upper surface of the base (1), and an internal thread (3) provided on the inner surface of the contact seat (2), characterized in that: The outer surface of the upper end of the contact seat (2) is provided with a contact surface (4), a locking surface (5) and a guide sliding surface (6), and an anti-slipping inner corner (7) is provided at the junction of the locking surface (5) and the guide sliding surface (6), and a yielding outer corner (8) is provided on the outer surface of the base (1) on the side of the guide sliding surface (6) away from the anti-slipping inner corner (7).

2. The cyclone anti-theft nut for a shared balance vehicle according to claim 1, characterized in that: The included angle between the abutting surface (4) and the locking surface (5) is an acute angle, and the abutting surface (4) and the lower surface of the base (1) are parallel to each other.

3. The cyclone anti-theft nut for a shared balance vehicle according to claim 1, characterized in that: The connection points between the abutting surface (4), the locking surface (5), the guide sliding surface (6) and the contact seat (2) are all designed with arc chamfers.

4. The cyclone anti-theft nut for a shared balance vehicle according to claim 1, characterized in that: The contact surface (4), locking surface (5) and guide sliding surface (6) on the surface of the contact seat (2) form inwardly concave grooves, and the grooves on the surface of the contact seat (2) are distributed at equal angles, and the contact seat (2) is designed in a truncated cone shape with a smaller upper portion and a larger lower portion.

5. The cyclone anti-theft nut for a shared balance vehicle according to claim 1, characterized in that: The included angle between the locking surface (5) and the guide sliding surface (6) is an acute angle, and the guide sliding surface (6) is inclined with the upper end facing the center of the contact seat (2).

6. The cyclone anti-theft nut for a shared balance vehicle according to claim 1, characterized in that: The convex corner (8) is designed to be arc-shaped, and the arc-shaped opening of the convex corner (8) is arranged toward the center of the contact seat (2).

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