Multi-angle positioning adjusting screw

Abstract

The invention discloses a multi-angle positioning adjusting screw which is suitable for various high-strength application scenes needing accurate positioning. The screw comprises a stud and a nut, and a plurality of multi-angle locking grooves are designed in threaded structures of the stud and the nut on the basis of a high-strength protective coating and used for achieving stable locking when the stud and the nut are screwed to different angles. According to the structure, through combined application of the high-temperature-resistant coating and the corrosion-resistant coating, the stability and the anti-loosening performance of the screw in the high-temperature and high-corrosion environment are improved, and the screw is suitable for machines and equipment needing high-strength positioning. The unique design further comprises a sealing ring structure for enhancing the sealing performance, and stability and sealing of the structure can be conveniently kept in various severe environments.

Description

Technical Field

[0001] The present invention relates to the technical field of fasteners, and in particular to a screw structure with multi-angle positioning and anti-loosening functions, which is suitable for high-strength, high-precision, and multi-scenario use environments. Background Art

[0002] When traditional screw fasteners are used in high-intensity vibration, heavy load and corrosive environments, the loosening problem affects the safety and stability of the equipment, which is usually alleviated by anti-loosening washers or coatings. However, the existing anti-loosening structure is not stable enough and difficult to accurately position, resulting in great limitations in high-precision usage scenarios. Therefore, the development of a screw structure with multi-angle positioning and anti-loosening performance is of great significance to improving equipment stability and operational flexibility. Summary of the invention

[0003] The object of the present invention is to provide a multi-angle positionable adjustment screw to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A screw with multi-angle position adjustment comprises a stud, a nut and a multi-layer protective structure arranged on the stud and the nut. The outer thread surface of the stud is provided with a plurality of multi-angle locking grooves. The multi-angle locking grooves have a certain groove depth and groove shape and can be engaged and locked when the nut is rotated to a specified angle to achieve stable positioning at multiple angles. The thread surfaces of the stud and the nut are also coated with a high-temperature resistant coating and a corrosion-resistant alloy layer to improve the performance in high temperature and corrosive environments.

[0006] Preferably, the multi-angle locking groove has a groove depth of 0.01 to 0.02 mm, and the groove shape is designed to be a prism or a triangle to ensure stable mechanical positioning at multiple angles.

[0007] Preferably, the high temperature resistant coating material is aluminum oxide (Al2O3) or zirconium oxide (ZrO2), the coating thickness is 0.02 to 0.05 mm, and it can remain stable in a high temperature environment of 600°C to 1000°C.

[0008] Preferably, the corrosion-resistant alloy layer is composed of a nickel-chromium alloy and has a thickness of 0.01 to 0.03 mm, and is used to improve the corrosion resistance of the screw in an acidic or alkaline environment.

[0009] Preferably, a silicone protective layer is provided in the thread of the contact portion between the stud and the nut, with a thickness of 0.01 to 0.02 mm, so as to enhance the waterproof and dustproof properties of the screw.

[0010] Preferably, the nut is provided with a groove for fixed sealing, and a fluororubber sealing ring is embedded in the groove to improve the sealing performance and chemical corrosion resistance.

[0011] Preferably, the stud and nut, after being combined with a protective layer coated on the surface, can maintain a stable anti-loosening effect during repeated tightening and loosening, and are suitable for high vibration and high temperature environments.

[0012] Preferably, the combined thickness of the high temperature resistant coating of the stud and the corrosion resistant alloy layer of the nut is 0.05 to 0.08 mm to ensure the wear resistance of the overall structure.

[0013] Preferably, an ergonomically adjustable protrusion is provided on the outer side of the nut to facilitate manual operation in multi-angle adjustment and achieve a more accurate multi-angle positioning effect.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This multi-angle positionable adjustment screw has a multi-angle locking slot design, which allows the screw to be stably locked at each specified angle. It is suitable for precision equipment installation, improves positioning accuracy and reduces the risk of loosening.

[0016] 2. This multi-angle positionable adjustment screw is coated with a high temperature resistant and corrosion resistant coating to ensure that the screw remains stable and prevents loosening in high temperature and acid and alkali environments, significantly improving the durability and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : A schematic diagram of the overall structure of the screw described in the present invention, showing the relative positions of the stud (1) and the nut (2).

[0018] Figure 2 : A partial structural diagram of the multi-angle locking groove (5) described in the present invention, showing the depth and groove shape of the locking groove.

[0019] Figure 3 : A schematic diagram of the coating distribution of the contact portion between the stud (1) and the nut (2) described in the present invention, showing the arrangement of the high temperature resistant coating (3), the corrosion resistant alloy layer (4) and the silicone resin protective layer (6).

[0020] Figure 4 : A diagram showing the positional relationship between the sealing groove (7) and the fluororubber sealing ring on the nut (2) of the present invention.

[0021] Figure 5 : Schematic diagram of the ergonomically adjustable raised portion on the side of the nut (2) described in the present invention, which is used for manual adjustment in multi-angle positioning.

[0022] In the figure: 1. stud; 2. nut; 3. high temperature resistant coating; 4. corrosion resistant alloy layer; 5. multi-angle locking groove; 6. silicone resin protective layer; 7. sealing groove; 8. fluororubber sealing ring; 9. ergonomically adjustable protrusion. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1: Multi-angle positioning and locking of precision equipment

[0025] In this embodiment, both the stud (1) and the nut (2) are provided with a multi-angle locking groove (5), the groove depth is controlled at 0.015 mm, and the groove shape is a prism-shaped design. During the tightening process of the equipment, the nut can be snapped into place at different angles to achieve stable positioning at multiple angles, which is suitable for precision equipment that requires multi-angle adjustment, such as optical instruments, electronic testing equipment, etc. In actual applications, the operator rotates the nut to a specified angle, and after confirming that the locking groove is engaged, the nut and the stud remain stable and do not loosen. Under this structure, the screw can be positioned at multiple angles by rotation, meeting the precise adjustment requirements of high-precision equipment under different operating conditions.

[0026] Example 2: Fastening application in high temperature environment

[0027] In this embodiment, the outer thread surface of the stud (1) is coated with an aluminum oxide high temperature resistant coating (3) with a thickness of 0.03 mm; the outer surface of the nut (2) is coated with a nickel-chromium alloy corrosion resistant alloy layer (4) with a thickness controlled at 0.02 mm. This combined structural design enables the screw to remain stable in a high temperature environment of 600 to 800°C, and is suitable for fastening requirements in high temperature conditions, such as industrial kilns, engine fixing components, and mechanical equipment in high temperature environments. In actual use, the screw is tightened in an extremely high temperature environment, and the aluminum oxide and nickel-chromium alloy layers provide anti-oxidation and anti-corrosion protection respectively, ensuring that the screw does not loosen due to thermal expansion or corrosion.

[0028] Example 3: Waterproof and dustproof in humid and outdoor environments

[0029] In this embodiment, a 0.02 mm thick silicone protective layer (6) is provided between the threads of the stud (1) and the nut (2). The silicone layer has excellent water resistance and dust resistance, can effectively prevent moisture and particles from entering the thread structure, and is suitable for outdoor installation and use in humid environments. In particular, in applications such as outdoor equipment and bridge connectors, the protective layer can effectively prevent corrosion and loosening caused by water infiltration, thereby extending the service life of the screw. During installation, the silicone layer fits tightly against the thread and forms a protective barrier after tightening, providing long-term protection for the screw.

[0030] Example 4: Anti-corrosion sealing structure in chemical equipment

[0031] In this embodiment, a sealing groove (7) is designed on the nut (2), in which a fluororubber sealing ring (8) is embedded. Fluororubber has excellent chemical corrosion resistance and high temperature resistance, and is suitable for chemical reactors, chemical containers and other places with acid and alkali corrosion risks. After tightening, the sealing ring forms a tight seal with the thread contact surface of the stud (1), preventing corrosive liquids from penetrating into the thread. In actual application, when the nut is screwed to the locking position, the fluororubber sealing ring is squeezed and tightly fits on the contact surface of the stud and the nut, effectively improving the sealing performance of the screw and preventing the intrusion of corrosive substances.

[0032] Example 5: Application of human-machine adjustable structure in multi-angle positioning

[0033] In this embodiment, a protrusion (9) is provided on the outside of the nut (2) for easy manual operation. The protrusion design enables the operator to adjust the angle directly by manually rotating the nut without tools, so as to achieve a multi-angle positioning effect. It is suitable for equipment that needs frequent adjustment, such as the bracket of an experimental device, the fixture of a precision instrument, etc. During operation, the user can make fine adjustments with the help of the protrusion (9), select the appropriate angle and tighten it. The locking groove (5) provides a stable mechanical locking effect at each position, ensuring that the screw can remain stable under high-frequency and multi-angle adjustment.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A screw capable of being positioned and adjusted at multiple angles, comprising a stud (1), a nut (2), and a multi-layer protective structure arranged on the stud (1) and the nut (2), characterized in that: The external thread surface of the stud (1) is provided with a plurality of multi-angle locking grooves (5), and the multi-angle locking grooves (5) have a certain groove depth and groove shape, and can be engaged and locked when the nut (2) is rotated to a specified angle, thereby achieving stable positioning at multiple angles; the thread surfaces of the stud (1) and the nut (2) are also coated with a high-temperature resistant coating (3) and a corrosion-resistant alloy layer (4) to improve the performance in high-temperature and corrosive environments.

2. The screw structure according to claim 1, characterized in that: The multi-angle locking groove (5) has a groove depth of 0.01 to 0.02 mm, and the groove shape is designed to be a prism or a triangle, so as to ensure stable mechanical positioning at multiple angles.

3. The screw structure according to claim 1, characterized in that: The material of the high temperature resistant coating (3) is aluminum oxide (Al2O3) or zirconium oxide (ZrO2), the coating thickness is 0.02 to 0.05 mm, and it can remain stable in a high temperature environment of 600°C to 1000°C.

4. The screw structure according to claim 1, characterized in that: The corrosion-resistant alloy layer (4) is composed of a nickel-chromium alloy and has a thickness of 0.01 to 0.03 mm, and is used to improve the corrosion resistance of the screw in an acidic or alkaline environment.

5. The screw structure according to claim 1, characterized in that: A silicone protective layer (6) is provided in the thread of the contact portion between the stud (1) and the nut (2), with a thickness of 0.01 to 0.02 mm, so as to enhance the waterproof and dustproof performance of the screw.

6. The screw structure according to claim 1, characterized in that: The nut (2) is provided with a groove (7) for fixing the seal, and a fluororubber sealing ring is embedded in the groove to improve the sealing performance and chemical corrosion resistance.

7. The screw structure according to claim 1, characterized in that: After the stud (1) and the nut (2) are combined with a protective layer coated on the surface, they can maintain a stable anti-loosening effect during repeated tightening and loosening, and are suitable for high vibration and high temperature environments.

8. The screw structure according to claim 1, characterized in that: The combined thickness of the high temperature resistant coating (3) of the stud (1) and the corrosion resistant alloy layer (4) of the nut (2) is 0.05 to 0.08 mm, so as to ensure the anti-wear performance of the overall structure.

9. The screw structure according to claim 1, characterized in that: The outer side of the nut (2) is provided with a ergonomically adjustable protrusion, which is used to facilitate manual operation in multi-angle adjustment and achieve a more accurate multi-angle positioning effect.

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