Hollow screw and bolt

Abstract

The utility model relates to the technical field of fasteners, and discloses a hollow screw and a bolt, the hollow screw comprises a screw rod, a nut is arranged at the top of the screw rod, the nut is hexagonal, the screw rod comprises a shell, a cavity is formed in the shell, threads are arranged on the surface of the shell, the shell is made of a titanium alloy material, and the shell is made of a titanium alloy material. Reinforcing ribs are arranged on the inner wall of the cavity. According to the hollow screw and the bolt, the weight of the bolt is effectively reduced through the arrangement of the cavity, meanwhile, the strength of the bolt in the using process is guaranteed through the arrangement of the titanium alloy shell, the reinforcing ribs spirally distributed on the inner wall of the cavity provide multi-point effective supporting for the inner wall of the cavity, and the overall using strength of the screw is further improved; the self weight of the bolt is obviously reduced, the original mechanical property of the bolt is kept while the weight of the bolt is reduced, the stable performance of the product in a severe environment is ensured, the consumption of raw materials is reduced, and the effects of environmental protection and resource saving are achieved.

Description

Technical Field

[0001] This application relates to the field of fastener technology, specifically to a hollow screw and bolt. Background Technology

[0002] Fasteners, as one of the most common components in mechanical equipment, play a vital role in various industrial production and technological applications. Traditional solid screws and bolts are widely used due to their high strength, but with the trend towards lightweight design, traditional designs are gradually showing their limitations. In recent years, with the advancement of materials science and the development of precision machining technology, the development of new, efficient, lighter, and lower-cost fasteners has become a hot topic in industry research.

[0003] Currently, the main way to reduce the weight of fasteners is by reducing the amount of material used. However, the reduction in material usage leads to a decrease in the overall performance of the bolts, making them prone to breakage or stripping under heavy loads. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a hollow screw and bolt that significantly reduces the bolt's weight while maintaining its original mechanical properties, ensuring stable performance in harsh environments, reducing raw material consumption, and contributing to environmental protection and resource conservation. This solves the problem that current methods of reducing fastener weight primarily involve decreasing material usage, which can lead to a decline in overall bolt performance and increased susceptibility to breakage or stripping under heavy loads.

[0005] To achieve the aforementioned significant reduction in bolt weight while maintaining its original mechanical properties, ensuring stable performance of the product in harsh environments, reducing raw material consumption, and contributing to environmental protection and resource conservation, this application provides the following technical solution: a hollow screw and bolt, comprising a screw rod with a nut at the top of the screw rod, the nut being hexagonal, the screw rod including a shell, the shell having an internal cavity, the shell surface having threads, the shell being made of titanium alloy, and the cavity inner wall having reinforcing ribs evenly distributed spirally along the length of the cavity inner wall.

[0006] The above solution effectively reduces the weight of the bolt by incorporating a cavity, while the titanium alloy shell ensures the bolt's strength during use. The spirally distributed reinforcing ribs on the inner wall of the cavity provide multi-point effective support, further increasing the overall strength of the bolt. This significantly reduces the bolt's weight while maintaining its original mechanical properties, ensuring stable performance of the product in harsh environments, reducing raw material consumption, and contributing to environmental protection and resource conservation.

[0007] Furthermore, a sealing plate is provided on the inner wall of the cavity at the end away from the nut.

[0008] The above solution seals the inner wall of the cavity away from the nut by using a sealing plate, preventing harmful substances such as impurities from corroding the device through the cavity. It also effectively prevents the device from being exposed to air through the cavity, thus preventing accelerated oxidation at the connection between the device and the screw.

[0009] Furthermore, the top of the sealing plate is provided with a plurality of reinforcing plates arranged in a ring array, and one side of the plurality of reinforcing plates is arranged in a ring array on the inner wall of the cavity, and the reinforcing plates are arranged in a triangular shape.

[0010] The above solution improves the stability of the connection between the sealing plate and the cavity by setting multiple reinforcing plates, further enhancing the strength of one end of the cavity. The combination of the sealing plate and the triangular reinforcing plates not only enhances the stability of the structure but also effectively disperses stress, preventing deformation or rupture of the cavity caused by external forces.

[0011] Furthermore, the nut has a through-hole in the middle, which is connected to the cavity.

[0012] The above solution ensures ventilation within the cavity by using ventilation holes, preventing condensation from forming inside the cavity due to temperature changes and causing it to corrode the cavity interior.

[0013] Furthermore, the top of the nut has four countersunk holes arranged in a ring array, and the four countersunk holes form a cross shape.

[0014] The above solution allows for further weight reduction of the bolt by using countersunk holes and nuts. The cross-shaped hole formed between the four countersunk holes allows the bolt to be operated with a screwdriver. The hexagonal nut further enhances the bolt's operability, making it easier for the bolt to adapt to different installation environments. Different tools can be used to install the bolt according to different installation environments.

[0015] Furthermore, the inner wall of the cavity is provided with an anti-corrosion coating.

[0016] The above solution improves the corrosion resistance of the cavity's inner wall by applying an anti-corrosion coating, thereby extending the cavity's service life in harsh environments.

[0017] Furthermore, one end of the reinforcing rib has a triangular cross-section.

[0018] With the above scheme, one end of the reinforcing rib is designed with a triangular cross section. This shape not only enhances the rigidity of the structure, but also effectively disperses stress and prevents structural failure caused by local overload.

[0019] Furthermore, the edge of the screw away from the nut is rounded.

[0020] The above solution involves rounding the edge of the bolt away from the nut, which not only improves the safety and ease of use of the bolt but also reduces the risk of scratching surrounding components during installation.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This hollow screw and bolt effectively reduces the weight of the bolt through the cavity design, while the titanium alloy shell ensures the strength of the bolt during use. The spirally distributed reinforcing ribs on the inner wall of the cavity provide effective support at multiple points, further increasing the overall strength of the screw. This achieves a significant reduction in the weight of the bolt while maintaining its original mechanical properties, ensuring stable performance of the product in harsh environments, reducing raw material consumption, and contributing to environmental protection and resource conservation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present application;

[0024] Figure 2 This is a schematic diagram of the front structure of this application;

[0025] Figure 3 This is a top view of the structure of this application;

[0026] Figure 4 This is a schematic diagram of the front cross-sectional structure of this application;

[0027] Figure 5 This is a schematic diagram of the exploded structure of this application.

[0028] In the picture:

[0029] 1. Screw; 101. Housing; 102. Cavity; 2. Nut; 3. Reinforcing rib; 4. Sealing plate; 5. Reinforcing plate; 6. Ventilation hole; 7. Countersunk hole. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 4 and Figure 5 This embodiment of a hollow screw and bolt includes a screw rod 1, a nut 2 on the top of the screw rod 1, the nut 2 being hexagonal, the screw rod 1 including a housing 101, a cavity 102 inside the housing 101, threads on the surface of the housing 101, the housing 101 being made of titanium alloy, and reinforcing ribs 3 being provided on the inner wall of the cavity 102, the reinforcing ribs 3 being evenly distributed in a spiral shape along the length of the cavity 102 on the inner wall of the cavity 102.

[0032] Please see Figure 3 , Figure 4 and Figure 5 A sealing plate 4 is provided on the inner wall of the cavity 102 at the end away from the nut 2. The sealing plate 4 can seal the inner wall of the cavity 102 at the end away from the nut 2, preventing impurities and other substances that are harmful to the device from corroding the device through the cavity 102. It can also effectively prevent the device from being exposed to the air through the cavity 102, and prevent the oxidation process from being accelerated at the connection between the device and the screw 1.

[0033] Please see Figure 3 , Figure 4 and Figure 5 The top of the sealing plate 4 is arranged in a ring array with multiple reinforcing plates 5. The multiple reinforcing plates 5 are arranged in a ring array on one side of the inner wall of the cavity 102. The reinforcing plates 5 are arranged in a triangular shape. The arrangement of multiple reinforcing plates 5 can improve the stability of the connection between the sealing plate 4 and the cavity 102, and further enhance the strength of one end of the cavity 102. The combination of the sealing plate 4 and the triangular reinforcing plates 5 not only enhances the stability of the structure, but also effectively disperses stress and prevents the cavity 102 from deforming or cracking due to external forces.

[0034] Please see Figure 3 , Figure 4 and Figure 5 The nut 2 has a through-hole 6 in the middle, which is connected to the cavity 102. The ventilation hole 6 can ensure the ventilation in the cavity 102 and prevent the cavity 102 from condensing due to temperature changes and causing the condensation to corrode the inside of the cavity 102.

[0035] Please see Figure 1 , Figure 3 and Figure 5 The top of the nut 2 has four countersunk holes 7 arranged in a ring array, forming a cross shape between the four countersunk holes 7. The countersunk holes 7 can further reduce the weight of the bolt by using the nut 2. The cross shape formed between the four countersunk holes 7 allows the bolt to be operated with a screwdriver. The hexagonal nut 2 improves the operability of the bolt and makes it easy for the bolt to adapt to different installation environments. Different tools can be used to install the bolt according to different installation environments.

[0036] Please see Figure 4 and Figure 5 The inner wall of cavity 102 is provided with an anti-corrosion coating. The anti-corrosion coating on the inner wall of cavity 102 can improve the corrosion resistance of the inner wall of cavity 102 and increase the service life of cavity 102 in harsh environments.

[0037] Please see Figure 4 and Figure 5 The cross-section of one end of the reinforcing rib 3 is triangular. This shape not only enhances the rigidity of the structure, but also effectively disperses stress and prevents structural failure caused by local overload.

[0038] Please see Figure 1 , Figure 2 and Figure 4 The edge of the screw 1 away from the nut 2 is rounded. This rounding not only improves the safety and ease of use of the bolt, but also reduces the risk of scratching surrounding parts during installation.

[0039] This embodiment of a hollow screw and bolt effectively reduces the weight of the bolt by setting the cavity 102, while the titanium alloy shell 101 ensures the strength of the bolt during use. The spirally distributed reinforcing ribs 3 on the inner wall of the cavity 102 provide effective support at multiple points, further increasing the overall strength of the screw 1. This achieves a significant reduction in the weight of the bolt, maintaining its original mechanical properties while reducing its weight. This ensures stable performance of the product in harsh environments, reduces raw material consumption, and is beneficial to environmental protection and resource conservation.

[0040] The working principle of the above embodiment is as follows: the cavity 102 reduces the weight of the screw 1, thereby reducing the overall weight of the bolt. The outer shell 101, made of titanium alloy, reduces the weight of the screw 1 while ensuring the overall strength of the screw 1. The spiral reinforcing rib 3 provides multi-point effective support to the cavity 102 on the inner wall of the screw 1, improving the internal strength of the cavity 102 and preventing deformation of the cavity 102 under heavy load. The triangular arrangement of the reinforcing rib 3 effectively disperses stress. The sealing plate 4 on the inner wall of one end of the cavity 102 prevents air from contacting the bolted device through the cavity 102, thus preventing damage to the bolts. The connection will accelerate oxidation, which improves the life of the bolt connection of the device. The sealing plate 4 and the reinforcing plate 5 reinforce one end of the inner wall of the cavity 102, which improves the deformation resistance of one end of the inner wall of the cavity 102. According to the installation environment of the bolt, the appropriate installation tool is selected with the hexagonal nut 2 or the countersunk hole 7 opened on the nut 2 to install the bolt. When installing the bolt, the rounded corner of one end of the screw rod 1 makes it easy to screw the screw rod 1 into the threaded hole of the device. After the bolt is installed, the ventilation hole 6 opened on the nut 2 can effectively ventilate the inside of the cavity 102, preventing the cavity 102 from generating a large amount of condensate that cannot be discharged due to temperature changes, and keeping the inside of the cavity 102 dry.

[0041] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hollow screw and bolt, comprising a screw rod (1), characterized in that: The screw (1) is provided with a nut (2) at the top. The nut (2) is hexagonal. The screw (1) includes a shell (101). A cavity (102) is provided inside the shell (101). The surface of the shell (101) is provided with threads. The shell (101) is made of titanium alloy. The inner wall of the cavity (102) is provided with reinforcing ribs (3). The reinforcing ribs (3) are evenly distributed in a spiral shape along the length of the cavity (102) on the inner wall of the cavity (102).

2. A hollow screw and bolt according to claim 1, characterized in that: A sealing plate (4) is provided on the inner wall of the cavity (102) away from the nut (2).

3. A hollow screw and bolt according to claim 2, characterized in that: The top of the sealing plate (4) is provided with a plurality of reinforcing plates (5) arranged in a ring array. The plurality of reinforcing plates (5) are arranged in a ring array on one side of the inner wall of the cavity (102). The reinforcing plates (5) are arranged in a triangular shape.

4. A hollow screw and bolt according to claim 1, characterized in that: The nut (2) has a through-hole (6) in the middle, which is connected to the cavity (102).

5. A hollow screw and bolt according to claim 1, characterized in that: The top of the nut (2) has four countersunk holes (7) arranged in a ring array, and the four countersunk holes (7) form a cross shape.

6. A hollow screw and bolt according to claim 1, characterized in that: The inner wall of the cavity (102) is provided with an anti-corrosion coating.

7. A hollow screw and bolt according to claim 1, characterized in that: One end of the reinforcing rib (3) has a triangular cross-section.

8. A hollow screw and bolt according to claim 1, characterized in that: The end edge of the screw (1) away from the nut (2) is rounded.

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