Reinforced precision screw with anti-radiation function on surface

Abstract

The utility model relates to the technical field of aviation screws, and discloses a reinforced precision screw with an anti-radiation function on the surface, which comprises a screw body, and a locking component and a reinforcing component which are sequentially mounted at two ends of the screw body from top to bottom, anti-radiation layers are attached to the outer sides of the screw body, the locking assembly and the reinforcing assembly through the electroplating technology. Through cooperation of the screw rod body, the locking assembly and the reinforcing assembly, the locking assembly and the reinforcing assembly are installed at the two ends of the screw rod body correspondingly, and a first round corner part of the locking assembly abuts against a second round corner part of the reinforcing assembly, so that a reinforcing piece is conveniently unfolded, and the reinforcing piece is embedded into a hole of installation equipment; meanwhile, the anti-radiation layers are attached to the screw rod body, the locking assembly and the reinforcing assembly through the electroplating technology, the overall anti-radiation capacity of the screw is improved, and therefore the service life of the screw is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation screw technical field, concretely is a reinforced precision screw with surface anti -radiation function. BACKGROUND

[0002] Aviation screws play a vital role in the structure of an aircraft. They connect various components on the aircraft into a whole, ensuring the stability and safety of the structure. Although small in size, the role of screws cannot be ignored. Aviation screws usually use high-performance materials such as high-strength steel, alloy steel, titanium, and superalloy. These materials can withstand extreme temperature differences, high-cycle loads, and repeated vibrations and pressures, ensuring stable performance in various harsh environments.

[0003] In the prior art, the Chinese utility model content with application number CN201621124318.1 discloses a new type of reinforced anti-skid screw, which includes a screw body, wherein the screw body includes a screw head and a screw rod, the screw rod includes a threaded segment and a straight rod segment, the threaded segment is arranged at the lower part of the screw rod, characterized in that a sleeve shaft is sleeved on the screw rod, the sleeve shaft matches the straight rod segment, the end of the sleeve shaft away from the screw head is provided with a circular arc table, the end face of the circular arc table away from the screw head is provided with an anti-skid part, and a limiting ring is sleeved outside the sleeve shaft. The utility model is simple and practical, easy to disassemble and assemble, has high bearing capacity, and good stability.

[0004] Although the screw in the prior art is convenient to disassemble and assemble, the screw used in aviation and electrical equipment needs to be installed stably to avoid equipment failure. The screw in this technical solution only engages through threads, and the screw may loosen under vibration or load, so the installation stability of the screw needs to be further improved. Therefore, we need to propose a reinforced precision screw with surface anti-radiation function. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a reinforced precision screw with surface anti-radiation function, which is embedded in the equipment after installation by setting external threads and internal buckles, improves the connection stability with the equipment during installation, avoids screw loosening caused by vibration or load, and at the same time, the screw surface is provided with an anti-radiation coating, improving the anti-radiation effect of the screw, to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a reinforced precision screw with surface anti-radiation function, comprising:

[0007] A screw rod body, a locking assembly and a reinforcing assembly installed in order from top to bottom at both ends of the screw rod body, and an anti-radiation layer attached to the outer side of the screw rod body, the locking assembly and the reinforcing assembly by electroplating process.

[0008] The screw body comprises a sliding rod part and a threaded segment integrally formed, the locking assembly is installed on the threaded segment, and the reinforcing assembly is installed on the sliding rod part;

[0009] The locking assembly comprises an outer cylinder, a screw head is fixedly connected to the upper end of the outer cylinder, an inner thread is formed in the inner wall of the outer cylinder and is threadedly connected with the threaded segment, an outer thread is arranged on the outer side of the outer cylinder, and a first round corner part is arranged on the lower end of the outer side of the outer cylinder;

[0010] The reinforcing assembly comprises a base, a plurality of reinforcing pieces are integrally formed on the upper surface of the base, and a second round corner part is arranged on the upper end of one side of each of the plurality of reinforcing pieces.

[0011] Preferably, a plurality of reinforcing grooves are arranged on the outer side of each of the plurality of reinforcing pieces, the plurality of reinforcing grooves are arranged at equal intervals, and a slot is arranged between adjacent two reinforcing pieces.

[0012] Preferably, an inner screw rod is fixedly connected to the upper surface of the base, an inner screw hole is formed in the lower end of the sliding rod part and is threadedly connected with the inner thread, and the spacing between the two reinforcing pieces is the same as the outer diameter of the sliding rod part.

[0013] Preferably, an inner hole is formed in the upper end of the threaded segment, and a plurality of side holes are formed in the outer side of the sliding rod part and are in communication with the inner hole.

[0014] Preferably, a hexagonal block is integrally formed on the upper end of the screw head, and an inner hexagonal hole is formed in the upper end of the hexagonal block.

[0015] Preferably, an outer hole is formed in the upper end of the screw head and is in communication with the inner hole, and a sealing plug is embedded in the outer hole.

[0016] Preferably, an installation part is arranged on the upper end of the outer side of the outer cylinder, a protective cover is sleeved on the outer side of the installation part, an annular groove is formed in the lower surface of the protective cover, a sealing washer is embedded in the annular groove, and an anti-skid coating layer is arranged on the lower surface of the protective cover.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model mainly through the cooperation between screw body, locking assembly and reinforcing assembly, locking assembly and reinforcing assembly are installed at the two ends of screw body respectively, the first round corner part of locking assembly and the second round corner part of reinforcing assembly are in contact, so that the reinforcing piece is unfolded, the reinforcing piece is embedded in the hole of the installation equipment, the stability of the whole installation of screw is improved, meanwhile, the screw body, the locking assembly and the reinforcing assembly all adopt the electroplating process and are attached with the anti-radiation layer, the overall anti-radiation capacity of the screw is improved, and the service life of the screw is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model;

[0020] Figure 2 It is the screw body and reinforcing assembly structure schematic view of the utility model;

[0021] Figure 3 It is the locking assembly structure schematic view of the utility model;

[0022] Figure 4 It is the sealing washer structure schematic view of the utility model.

[0023] In the drawing: 1, screw body;11, slide bar part;12, thread segment;13, internal thread hole;14, internal hole;15, side hole;2, locking assembly;21, outer cylinder;22, internal thread;23, external thread;24, first fillet;25, screw head;26, hexagonal block;27, internal hexagonal hole;28, outer hole;29, mounting part;3, reinforcing assembly;31, base;32, reinforcing sheet;33, slot;34, reinforcing thread;35, second fillet;36, internal screw;4, sealing plug;5, protective cover;51, annular groove;52, antiskid coating;6, sealing washer. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a reinforced precision screw with anti-radiation function on surface, comprising:

[0026] Screw body 1, and locking assembly 2 and reinforcing assembly 3 sequentially installed on both ends of screw body 1 from top to bottom, the outer side of screw body 1, locking assembly 2 and reinforcing assembly 3 are attached with anti-radiation layer by electroplating process, the durability and stability of screw in radiation environment are enhanced, anti-radiation layer (such as tungsten, tantalum or boron carbide coating) can effectively prevent the damage of radiation to screw material, prolong the service life of screw;

[0027] Screw body 1 includes integrally formed slide bar part 11 and thread segment 12, locking assembly 2 is installed in thread segment 12, reinforcing assembly 3 is installed in slide bar part 11, the segmented design of slide bar part 11 and thread segment 12 facilitates the installation of locking assembly 2 and reinforcing assembly 3, improves assembly efficiency;

[0028] The locking assembly 2 comprises an outer cylinder 21, the upper end of the outer cylinder 21 is fixedly connected with a screw head 25, the inner wall of the outer cylinder 21 is provided with an inner thread 22 which is threadedly connected with the threaded section 12, the outer side of the outer cylinder 21 is provided with an outer thread 23, and the lower end of the outer side of the outer cylinder 21 is provided with a first rounded corner 24;

[0029] The reinforcing assembly 3 comprises a base 31, a plurality of reinforcing pieces 32 are integrally formed on the upper surface of the base 31, and the upper end of one side of each of the plurality of reinforcing pieces 32 is provided with a second rounded corner 35.

[0030] The outer side of each of the plurality of reinforcing pieces 32 is provided with a plurality of reinforcing grooves 34, the plurality of reinforcing grooves 34 are arranged at equal intervals, and a slot 33 is arranged between adjacent two reinforcing pieces 32, the second rounded corner 35 and the reinforcing groove 34 on the reinforcing piece 32 are designed to enhance the tensile strength and shear resistance of the screw, and the slot 33 between the adjacent reinforcing pieces 32 is designed to reduce the overall weight while maintaining the strength of the structure.

[0031] The upper surface of the base 31 is fixedly connected with an inner screw rod 36, the lower end of the slide rod part 11 is provided with an inner screw hole 13 for threadedly connecting with the inner thread 22, the distance between the opposite two reinforcing pieces 32 is the same as the outer diameter of the slide rod part 11, and the inner screw rod 36 is connected with the inner screw hole 13 of the slide rod part 11, which further enhances the stability of the screw.

[0032] The upper end of the threaded section 12 is provided with an inner hole 14, and the outer side of the slide rod part 11 is provided with a plurality of side holes 15 which are in communication with the inner hole 14, the inner hole 14 facilitates the injection of sealant or other filling materials, and enhances the sealing performance of the screw.

[0033] The upper end of the screw head 25 is integrally formed with a hexagonal block 26, the upper end of the hexagonal block 26 is provided with an inner hexagonal hole 27, the hexagonal block 26 and the inner hexagonal hole 27 are designed to facilitate installation and disassembly with tools, improving the operation convenience, and the inner hexagonal hole 27 is designed to be suitable for the installation of high-precision equipment, ensuring the accurate fixing of the screw.

[0034] The upper end of the screw head 25 is provided with an outer hole 28 which is in communication with the inner hole 14, and the outer hole 28 is embedded with a sealing plug 4, the outer hole 28 is designed to facilitate the injection of sealant or other filling materials, enhancing the sealing performance of the screw, and the sealing plug 4 is designed to prevent external impurities from entering the inside of the screw, improving the reliability and durability of the screw.

[0035] The outer side upper end of the outer cylinder 21 is provided with a mounting part 29, the outer side of the mounting part 29 is sleeved with a cover 5, the lower surface of the cover 5 is provided with an annular groove 51, the annular groove 51 is embedded with a sealing washer 6, the lower surface of the cover 5 is provided with an anti-skid coating 52, the mounting part 29 and the cover 5 are designed to protect the screw head 25 and the outer cylinder 21, prevent the damage of the screw by the external environment, the annular groove 51 of the cover 5 and the sealing washer 6 are designed to enhance the sealing performance of the screw, prevent the leakage of radioactive substances.

[0036] In use, first, the reinforcing assembly 3 is connected with the inner screw hole 13 of the slide rod part 11 through the inner screw rod 36, then the outer cylinder 21 of the locking assembly 2 is screwed with the threaded section 12 through the inner thread 22, the whole screw is inserted into the equipment hole to be installed, the outer cylinder 21 is rotated and deeply inserted into the equipment hole through the rotation of the hexagonal block 26 by a tool, and at the same time of continuously deepening, the external thread 23 is engaged with the equipment hole, the installation stability of the screw is enhanced, when the first fillet part 24 of the outer cylinder 21 is attached to the second fillet part 35 of the reinforcing piece 32, the reinforcing piece 32 is expanded, so that the multiple reinforcing grooves 34 are embedded with the inner wall of the equipment hole, the installation stability of the screw is further improved, the sealant is injected through the outer hole 28, then the gap between the screw and the equipment hole is filled, so as to prevent the leakage of radioactive substances, and ensure the reliability and durability of the screw in the high radiation and high load environment such as nuclear industry and aerospace.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforced precision screw having a radiation resistant surface, characterized in that, The utility model relates to a screw rod body (1) and the locking assembly (2) and the reinforcing assembly (3) of installing in the screw rod body (1) both ends in turn from top to bottom, the outer side of screw rod body (1), locking assembly (2) and reinforcing assembly (3) are attached with radiation resistance layer with electroplating process, The screw rod body (1) includes a sliding rod part (11) and a threaded segment (12) integrally formed, the locking assembly (2) is installed on the threaded segment (12), and the reinforcing assembly (3) is installed on the sliding rod part (11). The locking assembly (2) includes an outer cylinder (21), the upper end of the outer cylinder (21) is fixedly connected with a screw head (25), the inner wall of the outer cylinder (21) is provided with an internal thread (22) threadedly connected with the threaded segment (12), the outer side of the outer cylinder (21) is provided with an external thread (23), and the lower end of the outer side of the outer cylinder (21) is provided with a first round corner part (24). The reinforcing assembly (3) includes a base (31), and a plurality of reinforcing pieces (32) are integrally formed on the upper surface of the base (31), and the upper end of one side of each of the plurality of reinforcing pieces (32) is provided with a second round corner part (35). The outer side of each of the plurality of reinforcing pieces (32) is provided with a plurality of reinforcing grooves (34), the plurality of reinforcing grooves (34) are arranged at equal intervals, and a slot (33) is arranged between adjacent two reinforcing pieces (32).

2. The reinforced precision screw with radiation-resistant surface according to claim 1, characterized in that: The upper surface of the base (31) is fixedly connected with an internal screw rod (36), the lower end of the sliding rod part (11) is provided with an internal screw hole (13) for threadedly connecting with the internal thread (22), and the distance between the two reinforcing pieces (32) is the same as the outer diameter of the sliding rod part (11).

3. The reinforced precision screw with radiation-resistant surface according to claim 2, characterized in that: The upper end of the threaded segment (12) is provided with an inner hole (14), and the outer side of the sliding rod part (11) is provided with a plurality of side holes (15) in communication with the inner hole (14).

4. The reinforced precision screw with radiation-resistant surface according to claim 3, characterized in that: The upper end of the screw head (25) is integrally formed with a hexagonal block (26), and the upper end of the hexagonal block (26) is provided with an internal hexagonal hole (27).

5. The reinforced precision screw with radiation-resistant surface according to claim 4, characterized in that: The upper end of the screw head (25) is provided with an outer hole (28) in communication with the inner hole (14), and the outer hole (28) is embedded with a sealing plug (4).

6. The reinforced precision screw with radiation resistant surface of claim 5, wherein: The outer side of the upper end of the outer cylinder (21) is provided with a mounting part (29), the outer side of the mounting part (29) is sleeved with a protective cover (5), the lower surface of the protective cover (5) is provided with an annular groove (51), the annular groove (51) is embedded with a sealing washer (6), and the lower surface of the protective cover (5) is provided with an antiskid coating (52).

7. The reinforced precision screw with radiation resistant surface of claim 6, wherein: ​

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