A screw head safety cap

Abstract

The utility model relates to the technical field of screw head safety cap, specifically disclose a screw head safety cap, include: safety cap cover, the top of safety cap cover is provided with polygonal groove, the bottom swing joint of safety cap cover has the eye -ring, the inside top of safety cap cover is provided with first cavity, through the polygonal groove, antiskid toothed plate and four groups of limiting components that set up, realize the steady anti -skid of screw head and multi -specification adaptation. The preliminary antiskid of polygonal groove is formed with screw head top, and antiskid toothed plate enhances the friction of screw head side wall, and double antiskid avoids the circumferential rotation of safety cap cover and axial slip. The angle of abutment can be adjusted flexibly through the rotating shaft, and the screw head of different shape and specification is adapted, and the accessory need not be replaced, and the operation is convenient and efficient. Four groups of limiting components are clamped and fixed in all directions, ensure that the stress is balanced, prevent local stress concentration, even in the equipment vibration environment also can keep steady, effectively avoid the loosening of safety cap cover and fall off, guarantee the continuity and reliability of protection.

Description

Technical Field

[0001] This utility model relates to the technical field of screw-head safety helmets, specifically a screw-head safety helmet. Background Technology

[0002] In construction, equipment installation, and machinery maintenance, bolts are widely used as core connectors to fix components and connect equipment, and are often directly exposed to the external environment. These exposed bolt heads are susceptible to damage from collisions, friction, dust and debris accumulation, or corrosion from rain, snow, and corrosive media during operations, which can affect their subsequent disassembly and use, and may even affect the stability of the connection due to head damage.

[0003] Existing screw-head safety caps mostly employ a single anti-slip structure design, which is prone to circumferential rotation or axial slippage under equipment vibration or external force, leading to protective failure. Furthermore, their adaptability is insufficient, often only compatible with screw heads of specific sizes and shapes. When faced with screw heads of different sizes or slightly different top structures, it is difficult to achieve a tight fit and fixation, resulting in unstable fixation and poor versatility. Therefore, we propose a screw-head safety cap. Utility Model Content

[0004] The purpose of this utility model is to provide a screw-head safety cap to solve the problems mentioned in the background art, where existing screw-head safety caps mostly adopt a single anti-slip structure design, which is prone to circumferential rotation or axial slippage under equipment vibration, external force contact, etc., leading to protective failure. At the same time, their adaptability is insufficient, often only compatible with screw heads of specific specifications and shapes. When faced with screw heads of different sizes or slightly different top structures, it is difficult to achieve a tight fit and fixation, resulting in unstable fixation and poor versatility.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw-top safety helmet, including a helmet cover, a helmet cover with a polygonal groove on the top, a collar movably connected to the bottom of the helmet cover, a first cavity on the top of the helmet cover, a second cavity on the inner end of the top of the helmet cover, an anti-slip toothed plate fixedly connected to the inner wall of the second cavity, a limit component fixedly connected to the inner wall of the first cavity, and the helmet cover movably connected directly above the collar.

[0006] The limiting component includes a fixing block, which is fixedly connected to the inner wall of the first cavity. A spring damping rod is fixedly connected to the side of the fixing block away from the first cavity, and a limiting ring is fixedly connected to the top of the spring damping rod.

[0007] The top of the spring damping rod is movably connected to an inner pressure plate, and the spring damping rod is movably connected to both ends of the inner pressure plate in two sets. A connecting seat is fixedly connected to the center of the outer surface of the inner pressure plate.

[0008] The connecting seat has a rotating shaft movably connected to its side surface, and a stop block is fixedly connected to the outer surface of the rotating shaft. The outer surface of the stop block is arc-shaped.

[0009] The connecting seat, inner pressure plate, and spring damping rod are arranged symmetrically on both sides of the abutment in two groups, and the abutment can be tilted at an angle via a rotating shaft.

[0010] The limiting components are fixedly connected in four groups at the bottom opening of the helmet cover.

[0011] This utility model has at least the following beneficial effects: 1. In use, this utility model achieves stable anti-slip of the screw head and adaptability to multiple sizes through the design of polygonal grooves, anti-slip toothed plates, and four sets of limiting components. The polygonal grooves conform to the top of the screw head to form initial anti-slip, while the anti-slip toothed plates enhance the friction with the sidewall of the screw head, providing double anti-slip to prevent the safety helmet cover from rotating circumferentially and slipping axially. The stop block can be flexibly adjusted in angle via a rotating shaft to adapt to screw heads of different shapes and sizes, eliminating the need to replace parts and making operation convenient and efficient. The four sets of limiting components clamp and fix the screw head from all directions, ensuring balanced force and preventing local stress concentration. Even in environments with equipment vibration, the screw head remains stable, effectively preventing it from loosening and falling off, and ensuring continuous protection.

[0012] 2. In use, this utility model, through its spring damping rod, collar, and fixing block, provides both buffering and comprehensive protection. The spring damping rod undergoes elastic deformation upon impact or vibration, efficiently absorbing impact energy, weakening the direct effect of external forces on the screw head, preventing thread deformation, breakage, or loosening, and protecting the screw head structure. The collar provides axial restraint, and, in conjunction with the polygonal groove and anti-slip toothed plate, prevents the intrusion of dust, liquids, and other impurities, preventing rust and blockage of the screw head. The fixing block ensures the stress stability of the spring damping rod. The overall structure extends the service life of the screw head, reduces maintenance costs, ensures the long-term stability and safe use of the equipment connection structure, and is suitable for various industrial scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the structure and appearance of this utility model; Figure 3 This is a top view schematic diagram of the structure of the safety helmet cover of this utility model; Figure 4 This is a three-dimensional schematic diagram of the external appearance of the structural limiting component of this utility model.

[0014] In the diagram: 1. Helmet cover; 2. Multi-angled groove; 3. Loop; 4. First cavity; 5. Second cavity; 6. Anti-slip toothed plate; 7. Limiting component; 71. Fixing block; 72. Spring damping rod; 73. Limiting ring; 74. Inner pressure plate; 75. Connecting seat; 76. Rotating shaft; 77. Abutment block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a screw-head safety helmet, including: a safety helmet cover 1, a polygonal groove 2 on the top of the safety helmet cover 1, a collar 3 movably connected to the bottom of the safety helmet cover 1, a first cavity 4 on the top of the safety helmet cover 1, and a second cavity 5 on the inner end of the top of the safety helmet cover 1.

[0017] During use, the multi-angled groove 2, anti-slip toothed plate 6, and four sets of limiting components 7 ensure stable anti-slip of the screw head and adaptability to multiple sizes. The multi-angled groove 2 conforms to the top of the screw head to form initial anti-slip, while the anti-slip toothed plate 6 enhances the friction with the side wall of the screw head. This double anti-slip design prevents the safety helmet cover 1 from rotating circumferentially and slipping axially. The stop block 77 can be flexibly adjusted in angle via the rotating shaft 76 to adapt to screw heads of different shapes and sizes without the need to replace parts, making operation convenient and efficient. The four sets of limiting components 7 provide all-round clamping and fixation, ensuring balanced force and preventing local stress concentration. Even in environments with equipment vibration, it remains stable, effectively preventing the safety helmet cover from loosening and falling off, and ensuring continuous and reliable protection.

[0018] Please see Figure 1-4 The inner wall of the second cavity 5 is fixedly connected with an anti-slip toothed plate 6, the inner wall of the first cavity 4 is fixedly connected with a limit assembly 7, and the safety helmet cover 1 is movably connected directly above the collar 3.

[0019] In use, first align the helmet cover 1 with the screw head to be protected, so that the top of the screw head is embedded inside the helmet cover 1. The multi-angled groove 2 on the top fits the multi-angled structure of the screw head, and the fit between the groove surface and the screw head achieves anti-slip limiting, preventing the helmet cover 1 from rotating circumferentially during subsequent operations. Next, slide the movable collar 3 at the bottom of the helmet cover 1 and adjust the position of the collar 3 until it fits tightly against the mounting base surface at the bottom of the screw head, limiting the helmet cover 1 axially and preventing it from slipping off. At this time, the side wall of the screw head is in close contact with the anti-slip toothed plate 6 on the inner wall of the second cavity 5 at the top of the helmet cover 1. The anti-slip toothed plate 6 further enhances the friction with the screw head, and the double anti-slip structure ensures the stability of the initial fixation. At the same time, the four sets of limiting components 7 fixed on the inner wall of the first cavity 4 contact the top of the screw head. The abutment 77 can flexibly adjust its tilt angle through the rotating shaft 76 to adapt to the shape of the top of the screw head, so that its arc-shaped outer surface completely fits the screw head. It can adapt to different specifications of screw heads without changing parts, making it convenient to operate and highly adaptable.

[0020] Please see Figure 1-4 The limiting component 7 includes a fixing block 71, which is fixedly connected to the inner wall of the first cavity 4. A spring damping rod 72 is fixedly connected to the side of the fixing block 71 away from the first cavity 4, and a limiting ring 73 is fixedly connected to the top end of the spring damping rod 72. An inner pressure plate 74 is movably connected to the top end of the spring damping rod 72, and the spring damping rod 72 is movably connected to both ends of the inner pressure plate 74 in two sets. A connecting seat 75 is fixedly connected to the center of the outer surface of the inner pressure plate 74. A rotating shaft 76 is movably connected to the side surface of the connecting seat 75, and a stop block 77 is fixedly connected to the outer surface of the rotating shaft 76. The outer surface of the stop block 77 is arc-shaped.

[0021] The connecting seat 75, the inner pressure plate 74, and the spring damping rod 72 are symmetrically arranged in two sets on both sides of the abutment 77, and the abutment 77 can be tilted at an angle via the rotating shaft 76. The limiting assembly 7 is fixedly connected in four sets to the bottom opening of the safety helmet cover 1.

[0022] During protective use, the limiting components 7 play a core role in fixing and buffering. The fixing block 71 provides stable support for the spring damping rod 72. The squeezing force of the screw head against the stop block 77 is transmitted to the inner pressure plate 74 through the connecting seat 75, causing the two sets of spring damping rods 72 at both ends of the inner pressure plate 74 to undergo elastic deformation. The elastic restoring force pushes the stop block 77 to continuously and tightly abut against the screw head. Together with the connecting seats 75, inner pressure plate 74 and spring damping rods 72 symmetrically arranged on both sides of the stop block 77, a balanced clamping force is formed. The four sets of evenly distributed limiting components 7 fix the screw head from four directions in all directions, avoiding localized force concentration, and preventing the safety helmet cover 1 from loosening and falling off even in equipment vibration scenarios. When the screw head is subjected to external collision or vibration, the spring damping rod 72 absorbs the impact energy through elastic deformation, converting the hard impact into elastic potential energy and weakening the direct effect of external force on the screw head, preventing the screw head thread from deforming, breaking or loosening. The dual anti-slip design of the multi-angle groove 2 and the anti-slip toothed plate 6, combined with the axial limiting of the collar 3, forms an all-round protection system to block the intrusion of dust, liquid and other impurities, prevent the screw head from rusting and clogging, extend the service life of the screw head, and ensure the stability and safety of the equipment connection structure.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screw-head safety cap, comprising: The helmet cover (1) is characterized in that: the top of the helmet cover (1) has a polygonal groove (2), the bottom of the helmet cover (1) is movably connected to a collar (3), the top of the helmet cover (1) has a first cavity (4), the inner end of the top of the helmet cover (1) has a second cavity (5), the inner wall of the second cavity (5) is fixedly connected to an anti-slip toothed plate (6), the inner wall of the first cavity (4) is fixedly connected to a limiting component (7), and the helmet cover (1) is movably connected directly above the collar (3).

2. The screw-head safety cap according to claim 1, characterized in that: The limiting component (7) includes a fixing block (71), which is fixedly connected to the inner wall of the first cavity (4). A spring damping rod (72) is fixedly connected to the side of the fixing block (71) away from the first cavity (4), and a limiting ring (73) is fixedly connected to the top end of the spring damping rod (72).

3. A screw-head safety cap according to claim 2, characterized in that: The top end of the spring damping rod (72) is movably connected to an inner pressure plate (74). The spring damping rod (72) is movably connected to both ends of the inner pressure plate (74) in two sets. A connecting seat (75) is fixedly connected to the center of the outer surface of the inner pressure plate (74).

4. A screw-head safety cap according to claim 3, characterized in that: The side surface of the connecting seat (75) is movably connected to a rotating shaft (76), and the outer surface of the rotating shaft (76) is fixedly connected to a stop block (77), the outer surface of the stop block (77) being arc-shaped.

5. A screw-head safety cap according to claim 3, characterized in that: The connecting seat (75), the inner pressure plate (74), and the spring damping rod (72) are arranged symmetrically in two sets on both sides of the abutment (77), and the abutment (77) can be tilted at an angle through the rotating shaft (76).

6. A screw-head safety cap according to claim 1, characterized in that: The limiting components (7) are fixedly connected in four groups at the bottom opening of the helmet cover (1).

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