Fastener with high pressure resistance

Abstract

The fastener comprises a threaded column, an annular gasket is fixedly arranged on the upper portion of the side wall of the threaded column in a sleeved mode, an anti-disassembly assembly is arranged on the annular gasket, a non-through cavity is formed in the top of the threaded column, a rotating assembly is arranged in an inner cavity of the cavity, a non-through square groove is formed in the top of the rotating assembly, and a clamping groove is formed in the top of the rotating assembly. A fixing ring is fixedly connected to the bottom of an inner cavity of the cavity, and a plurality of clamping grooves are evenly formed in the top of the fixing ring. According to the fastener with the high pressure resistance, the pressure-resistant rotating column, the square groove, the rotating assembly, the fixing ring, the clamping groove, the anti-disassembly assembly and the like are arranged, so that the fastener can resist pressure in all directions, the pressure resistance is good, non-professionals cannot disassemble the threaded column at will, professionals must open the anti-disassembly assembly and clamp the clamping block into the clamping groove, and therefore the fastener is convenient to disassemble and assemble. And then the rotating column is rotated, so that the threaded column can be detached, and the anti-detaching performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener with strong compression resistance. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. Fasteners are widely used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics and other industries. Various types of fasteners can be seen on various machinery, equipment, aerospace machinery, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies. They are the most widely used basic mechanical parts. They are characterized by a wide variety of varieties and specifications, different performances and uses, and a high degree of standardization, serialization and generalization. Therefore, some people call a type of fasteners with national standards standard fasteners, or simply standard parts.

[0003] Existing fasteners have certain defects. Existing fasteners have low compression resistance. During aviation flight, the aircraft will be subjected to high pressure due to its high speed, which may easily cause deformation of the fasteners and endanger driving safety. At the same time, the fastening effect of existing fasteners is not good and they are easy to fall off. In addition, the existing fasteners have a cross-shaped groove or a straight-shaped groove on their heads. Ordinary people can directly disassemble them with a very common cross screwdriver or a straight-shaped screwdriver, which can be easily used by terrorists, thereby endangering driving safety. Therefore, we propose a new fastener with strong compression resistance. Utility Model Content

[0004] The main purpose of the utility model is to provide a fastener with strong compression resistance, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fastener with strong pressure resistance, including a threaded column, a fixed sleeve on the upper part of the side wall of the threaded column is provided with an annular gasket, an anti-disassembly component is provided on the annular gasket, a non-through cavity is opened at the top of the threaded column, a rotating component is provided in the inner cavity of the cavity, a non-through square groove is opened at the top of the rotating component, a fixing ring is fixedly connected to the bottom of the inner cavity of the cavity, and a plurality of slots are evenly opened on the top of the fixing ring.

[0006] As a further description of the above technical solution, the rotating assembly includes a pressure-resistant rotating column, a screw head, a block, and a cross slot. The pressure-resistant rotating column is slidably connected to the inner cavity of the cavity. The pressure-resistant rotating column is configured in a hexagonal prism shape. Each side wall at the lower part of the pressure-resistant rotating column is fixedly connected with a block. The top of the pressure-resistant rotating column is fixedly connected with a screw head. A non-through cross slot is provided on the top of the screw head. The cross slot and the square slot are on the same vertical line, and the depth of the square slot is deeper than that of the cross slot.

[0007] As a further description of the above technical solution, the card slot and the corresponding card block are on the same vertical line, and the card slot is snap-connected to the card block.

[0008] As a further description of the above technical solution, the anti-disassembly component includes semi-circular ring card blocks, insertion blocks, and a special keyhole. The two semi-circular ring card blocks are rotatably connected through a rotating shaft. An insertion block is fixedly connected to the side wall of one semi-circular ring card block, and a jack is provided on the side wall of the other semi-circular ring card block. The insertion block and the jack are fixedly connected through a lock, and a special keyhole penetrating through to the jack is provided on the side wall of the semi-circular ring card block.

[0009] As a further description of the above technical solution, the size of the hexagonal prism of the cross-section of the compression-resistant rotating column is smaller than the inner diameter of the fixed ring, and the cross-sectional diameter of the screw head is larger than the inner diameter of the cross-section of the semi-circular ring card block.

[0010] Compared with the prior art, the present utility model has the following beneficial effects:

[0011] 1. By providing a compression-resistant rotating column, a square groove, etc., by setting the compression-resistant rotating column to be hexagonal prism-shaped, the compression resistance effect of the hexagonal prism is better, and the compression resistance performance is better than that of the traditional cylindrical shape, and it is more capable of preventing being bent and deformed under pressure. At the same time, if the threaded column is corroded or the threaded column is deformed by an external force, a steel bar with a square head can be inserted into the square groove to rotate, so as to increase the force lever and facilitate screwing out the threaded column.

[0012] 2. By providing a rotating component, a fixed ring, a card slot, an anti-disassembly component, etc., after installing the fastener on the aircraft, the anti-disassembly component is locked through a special key and a special keyhole. In this way, the rotating component is snap-connected to the top of the anti-disassembly component. Even if an unauthorized person rotates the screw head through the cross slot, since the card block and the card slot are not yet snap-connected and only the rotating column rotates, the threaded column cannot be driven to rotate, that is, the threaded column cannot be disassembled at will. When a professional repairs or replaces the fastener, the anti-disassembly component is opened with a special key, the rotating column is slid down along the cavity, the card block is snap-connected into the card slot, and then the rotating column is rotated to drive the threaded column to rotate, and the threaded column can be removed. The anti-disassembly performance is good, and unauthorized persons cannot easily remove the threaded column, thereby improving the use safety of the fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a fastener with strong compression resistance proposed by the present utility model;

[0014] Figure 2 It is an exploded structure diagram of a fastener with strong compression resistance proposed by the present utility model;

[0015] Figure 3Schematic diagram of the internal structure of a fastener with strong compressive resistance proposed by the present utility model.

[0016] In the figure: 1, threaded post; 2, annular gasket; 3, rotating assembly; 4, square groove; 5, anti-disassembly component; 6, cavity; 7, fixing ring; 8, card slot; 3.1, compressive rotating post; 3.2, screw head; 3.3, clamping block; 3.4, cross slot; 5.1, semi-circular clamping block; 5.2, inserting block; 5.3, special keyhole. Specific implementation manners

[0017] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Please refer to Figures 1-3, the present utility model provides a technical solution: a fastener with strong compressive resistance, including a threaded column 1. An annular gasket 2 is fixedly sleeved on the upper part of the side wall of the threaded column 1. An anti-disassembly component 5 is arranged on the annular gasket 2. A non-through cavity 6 is opened at the top of the threaded column 1. A rotating component 3 is arranged in the inner cavity of the cavity 6. A non-through square groove 4 is opened at the top of the rotating component 3. A fixed ring 7 is fixedly connected to the bottom of the inner cavity of the cavity 6. A plurality of card slots 8 are evenly opened at the top of the fixed ring 7. By setting the compressive rotating column 3.1 to be hexagonal prism-shaped, the compressive effect of the hexagonal prism is better, and the compressive performance is better than that of the traditional cylindrical shape, and it is more capable of preventing bending and deformation under pressure. At the same time, if the threaded column 1 is corroded or the threaded column 1 is deformed by external force, a steel bar with a square head can be inserted into the square groove 4 to rotate, so as to increase the force lever and facilitate the screwing out of the threaded column 1.

[0021] Specifically, as Figure 1 , Figure 2 shown, the rotating component 3 includes a compressive rotating column 3.1, a screw head 3.2, a clamping block 3.3, and a cross groove 3.4. The compressive rotating column 3.1 is slidably connected to the inner cavity of the cavity 6. The compressive rotating column 3.1 is set to be hexagonal prism-shaped. A clamping block 3.3 is fixedly connected to each side wall of the lower part of the side wall of the compressive rotating column 3.1. A screw head 3.2 is fixedly connected to the top of the compressive rotating column 3.1. A non-through cross groove 3.4 is opened at the top of the screw head 3.2. The cross groove 3.4 and the square groove 4 are on the same vertical line, and the depth of the square groove 4 is deeper than the depth of the cross groove 3.4. When the anti-disassembly component 5 is arranged between the screw head 3.2 and the annular gasket 2, if an unauthorized person rotates the screw head 3.2 through the cross groove 3.4, since the clamping block 3.3 and the card slot 8 are not yet engaged, only the compressive rotating column 3.1 rotates and cannot drive the threaded column 1 to rotate, that is, the threaded column 1 cannot be disassembled casually.

[0022] The card slot 8 and the corresponding clamping block 3.3 are on the same vertical line, and the card slot 8 and the clamping block 3.3 are engaged and connected. When a professional repairs and replaces the fastener, the anti-disassembly component 5 is opened with a special key, the compressive rotating column 3.1 is slid downward along the cavity 6, the clamping block 3.3 is clamped into the card slot 8, and then the compressive rotating column 3.1 is rotated to drive the threaded column 1 to rotate, and the threaded column 1 can be removed. The anti-disassembly performance is good, and unauthorized personnel cannot easily remove the threaded column 1, thereby improving the use safety of the fastener.

[0023] Specifically, as Figure 2As shown, the anti-disassembly component 5 includes a semi-circular ring block 5.1, an insertion block 5.2, and a special keyhole 5.3. The two semi-circular ring blocks 5.1 are rotatably connected through a rotating shaft. An insertion block 5.2 is fixedly connected to the side wall of one semi-circular ring block 5.1, and a jack is provided on the side wall of the other semi-circular ring block 5.1. The insertion block 5.2 and the jack are fixedly connected through a lock. A special keyhole 5.3 penetrating through to the jack is provided on the side wall of the semi-circular ring block 5.1, and a special key can be used to open the insertion block 5.2 and the jack through the special keyhole 5.3. When the aircraft is flying daily, the two semi-circular ring blocks 5.1 are fixedly connected through the insertion block 5.2, the jack, and the lock thereon. At this time, the screw head 3.2 is in contact with the semi-circular ring block 5.1, and the bottom of the semi-circular ring block 5.1 abuts against the annular gasket 2, so that the compression-resistant rotating column 3.1 can be located above the fixed ring 7, and the block 3.3 is not engaged with the card slot 8.

[0024] Specifically, as Figure 2 、 Figure 3 shown, the size of the hexagonal prism of the cross-section of the compression-resistant rotating column 3.1 is smaller than the inner diameter of the fixed ring 7, which is convenient for the compression-resistant rotating column 3.1 to rotate in the cavity 6 after the anti-disassembly component 5 is locked, and after the anti-disassembly component 5 is opened, it can penetrate into the inner cavity of the fixed ring 7, so that the block 3.3 is engaged into the card slot 8. The cross-sectional diameter of the screw head 3.2 is larger than the inner diameter of the cross-section of the semi-circular ring block 5.1, preventing the screw head 3.2 from passing through the inner diameter of the semi-circular ring block 5.1, thereby causing the anti-disassembly component 5 to fail.

[0025] It should be noted that the present utility model is a fastener with strong compression resistance. By setting the compression-resistant rotating column 3.1 as a hexagonal prism, the compression resistance effect of the hexagonal prism is better, and the compression performance is better than that of the traditional cylindrical shape, and it is more capable of preventing being bent and deformed under pressure. At the same time, if the threaded column 1 is corroded or the threaded column 1 is deformed by an external force, a corresponding steel bar with a square head can be embedded into the square groove 4 and rotated, so as to increase the force lever and facilitate screwing out the threaded column 1.

[0026] When the aircraft is in normal flight, after installing the fastener on the aircraft, lock the anti-disassembly component 5 through the special key and the special keyhole 5.3. The two semi-circular clamping blocks 5.1 are fixedly connected to the jack and the lock thereon through the insertion block 5.2. At this time, the screw head 3.2 is in contact with the semi-circular clamping block 5.1, and the bottom of the semi-circular clamping block 5.1 abuts against the annular gasket 2, so that the compression rotation column 3.1 can be located above the fixed ring 7, and the clamping block 3.3 is not engaged with the card slot 8. If an unauthorized person rotates the screw head 3.2 through the cross slot 3.4, since the clamping block 3.3 is not yet engaged with the card slot 8, only the compression rotation column 3.1 rotates and cannot drive the threaded column 1 to rotate, that is, the threaded column 1 cannot be disassembled at will. When professionals repair and replace the fastener, use the special key to open the anti-disassembly component 5, slide the compression rotation column 3.1 downward along the cavity 6, engage the clamping block 3.3 into the card slot 8, and then rotate the compression rotation column 3.1 to drive the threaded column 1 to rotate, and the threaded column 1 can be removed. The anti-disassembly performance is good, and unauthorized persons cannot easily remove the threaded column 1, thereby improving the use safety of the fastener.

[0027] 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. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastener with high compression resistance, comprising a threaded column (1), characterized in that: An annular gasket (2) is fixedly sleeved on the upper part of the side wall of the threaded column (1), an anti-disassembly component (5) is provided on the annular gasket (2), a non-through cavity (6) is provided on the top of the threaded column (1), a rotating component (3) is provided in the inner cavity of the cavity (6), a non-through square groove (4) is provided on the top of the rotating component (3), a fixing ring (7) is fixedly connected to the bottom of the inner cavity of the cavity (6), and a plurality of slots (8) are evenly provided on the top of the fixing ring (7).

2. A fastener with high compression resistance according to claim 1, characterized in that: The rotating assembly (3) comprises a pressure-resistant rotating column (3.1), a screw head (3.2), a clamping block (3.3), and a cross groove (3.4); the pressure-resistant rotating column (3.1) is slidably connected to the inner cavity of the cavity (6); the pressure-resistant rotating column (3.1) is configured in a hexagonal column shape; each side wall at the lower part of the side wall of the pressure-resistant rotating column (3.1) is fixedly connected to a clamping block (3.3); the top of the pressure-resistant rotating column (3.1) is fixedly connected to a screw head (3.2); a non-through cross groove (3.4) is provided at the top of the screw head (3.2); the cross groove (3.4) and the square groove (4) are on the same vertical line, and the depth of the square groove (4) is deeper than the depth of the cross groove (3.4).

3. A fastener with high compression resistance according to claim 2, characterized in that: The card slot (8) and the corresponding card block (3.3) are located on the same vertical line, and the card slot (8) and the card block (3.3) are engaged and connected.

4. A fastener with high compression resistance according to claim 3, characterized in that: The anti-disassembly component (5) comprises a semicircular clamping block (5.1), an inserting block (5.2), and a special keyhole (5.3); the two semicircular clamping blocks (5.1) are rotatably connected via a rotating shaft; the inserting block (5.2) is fixedly connected to the side wall of one semicircular clamping block (5.1); a plugging hole is provided on the side wall of the other semicircular clamping block (5.1); the plugging block (5.2) is fixedly connected to the plugging hole via a lock; and the special keyhole (5.3) is provided on the side wall of the semicircular clamping block (5.1) and penetrates to the plugging hole.

5. A fastener with high compression resistance according to claim 4, characterized in that: The hexagonal prism-shaped size of the cross-section of the compression-resistant rotating column (3.1) is smaller than the inner diameter of the fixing ring (7), and the cross-sectional diameter of the screw head (3.2) is larger than the cross-sectional inner diameter of the semicircular ring block (5.1).

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