A new anti-loose assembly

Abstract

This invention discloses a novel anti-loosening component, comprising a threaded fastener, a washer, and a sleeve. The washer is disposed on the upper surface of the part to be connected. The threaded fastener securely connects the part to be connected and the washer. A sleeve that mates with the washer is nested at the upper end of the threaded fastener. A dustproof cover is snapped onto the sleeve. This novel anti-loosening component has a simple structure, is easy to manufacture, has low cost, is easy to assemble and disassemble, and provides good anti-loosening effect.

Description

Technical Field

[0001] This invention relates to the field of threaded fasteners, and more particularly to a novel anti-loosening component. Background Technology

[0002] Threaded fasteners are a common method for connecting mechanical parts. The most common threaded fasteners are nuts, bolts, and washers. Because mechanical parts are often subjected to vibration, bolted connections can loosen due to prolonged exposure to vibration. To prevent or mitigate this loosening, various anti-loosening nuts and washers have been designed. However, these technologies suffer from problems such as complex structures, high precision requirements, high manufacturing costs, and generally limited anti-loosening effectiveness. Therefore, developing an anti-loosening component that is simple in structure, easy to manufacture, convenient to assemble and disassemble, and provides good anti-loosening performance has become a pressing issue for those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a novel anti-loosening component to solve the aforementioned technical problems. This invention adopts the following technical solution:

[0004] The present invention discloses a novel anti-loosening component, comprising a threaded fastener, a washer, and a sleeve. The washer is disposed on the upper surface of the part to be connected, the threaded fastener is fixedly connected to the part to be connected and the washer, and the upper end of the threaded fastener is nested with a sleeve that mates with the washer.

[0005] Furthermore, the lower surface of the sheath is provided with a first ratchet tooth, which engages with a second ratchet tooth on the upper surface of the washer.

[0006] Furthermore, a square hole is provided on the upper side of the sheath, the upper edge of the square hole is higher than the upper surface of the threaded fastener, and the lower edge of the square hole is lower than the upper surface of the threaded fastener.

[0007] Furthermore, a protective cover is provided at the upper end of the sheath, and a first protrusion is provided at the lower end of the side of the protective cover, the first protrusion engaging with the square hole.

[0008] Furthermore, the lower surface of the washer is provided with a third ratchet, which engages with the upper surface of the component to be connected.

[0009] Furthermore, the threaded fastener is a bolt and a nut, with the bolt passing through the part to be connected, the washer, and the nut sequentially from bottom to top. The sheath is nested on the outside of the nut, and a first elastic locking point is provided on the lower surface of the sheath, which is located between the nut and the washer.

[0010] Furthermore, the threaded fastener is a bolt, which passes through the washer from top to bottom and engages with the threaded part to be connected. The sheath is nested on the nut of the bolt, and a first elastic locking point is provided on the lower surface of the sheath, which is located between the nut of the bolt and the washer.

[0011] Furthermore, the root of the bolt nut is provided with a second protrusion, which engages with the edge of the screw hole on the lower surface of the part to be connected.

[0012] Furthermore, hexagonal or cylindrical toothed nuts are used to mate with hexagonal or cylindrical toothed sheaths, respectively.

[0013] Furthermore, the inner ring of the washer is provided with a second elastic locking point, which engages with a right-angle locking groove on the surface of the stud in the middle section of the bolt.

[0014] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0015] The main components of this novel anti-loosening assembly are only a washer, a sleeve, and a protective cover. Its simple shape and low precision requirements allow for one-time stamping, resulting in low processing costs. This novel anti-loosening assembly requires no special auxiliary tools for assembly and disassembly. Furthermore, the protective cover allows for thorough oiling and rust prevention of the exposed bolt portion, making bolt disassembly easier. This novel anti-loosening assembly has dual anti-loosening effects: firstly, the bolt stops at the connected part, the connected part stops at the washer, the washer stops at the sleeve, and the sleeve stops at the nut, thus achieving a locking effect between the nut and bolt; secondly, the bolt stops at the washer, the washer stops at the sleeve, and the sleeve stops at the nut, thus achieving a locking effect between the nut and bolt. In summary, this novel anti-loosening assembly has a simple structure, is easy to process, has low cost, is easy to assemble and disassemble, and provides good anti-loosening performance. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a cross-sectional view of Embodiment 1 of the novel anti-loosening component of the present invention;

[0018] Figure 2 This is a top view of Embodiment 1 of the novel anti-loosening component of the present invention;

[0019] Figure 3 This is an isometric view of Embodiment 1 of the novel anti-loosening component of the present invention;

[0020] Figure 4 This is a six-sided sectional view of Embodiment 2 of the novel anti-loosening component of the present invention;

[0021] Figure 5This is a six-sided sectional view of Embodiment 2 of the novel anti-loosening component of the present invention;

[0022] Figure 6 This is a bottom view of the cylindrical tooth surface of Embodiment 2 of the novel anti-loosening component of the present invention;

[0023] Figure 7 This is a front view of the cylindrical toothed surface of Embodiment 2 of the novel anti-loosening component of the present invention;

[0024] Figure 8 Axonometric drawing of the protective cover;

[0025] Figure 9 Axonometric drawing of the washer;

[0026] Figure 10 Isometric drawing of the sheath;

[0027] Figure 11 This is a diagram showing the fit between the bolt and the washer.

[0028] Explanation of reference numerals in the attached drawings: 1. Protective cover; 101. First protrusion; 2. Bolt; 201. Second protrusion; 202. Right-angle slot; 203. Nut; 3. Nut; 4. Sheath; 401. Square hole; 402. First elastic locking point; 403. First ratchet; 5. Washer; 501. Second ratchet; 502. Third ratchet; 503. Second elastic locking point; 6. Part to be connected. Detailed Implementation

[0029] Example 1

[0030] like Figures 1 to 3 As shown, a novel anti-loosening component includes a protective cover 1, a bolt 2, a nut 3, a protective sleeve 4, and a washer 5.

[0031] like Figures 8 to 11 As shown, the bolt 2 passes through the component to be connected 6, the washer 5 and the nut 3 in sequence from bottom to top. The sheath 4 is nested on the outside of the nut 3. The lower surface of the sheath 4 is provided with a first elastic locking point 402. The first elastic locking point 402 is placed between the nut 3 and the washer 5, so that the lower surface of the sheath 4 is in close contact with the upper surface of the washer 5.

[0032] The lower surface of the sheath 4 is provided with a first ratchet 403, which engages with a second ratchet 501 on the upper surface of the washer 5. This serves to prevent rotation in the forward direction and stop movement in the reverse direction.

[0033] The upper side of the sheath 4 is provided with a square hole 401. The upper edge of the square hole 401 is higher than the upper surface of the nut 3, which facilitates the insertion of disassembly tools. The lower edge of the square hole 401 is lower than the upper surface of the nut 3, which facilitates the upward movement of the sheath 4 when it is disassembled.

[0034] The upper end of the sheath 4 is provided with a protective cover 1, and the lower end of the side of the protective cover 1 is provided with a first protrusion 101, which engages with the square hole 401. This makes the protective cover 1 and the sheath 4 form a closed cavity, which facilitates the full application of oil to the exposed part of the bolt 2 for rust prevention, thereby providing dust and rust prevention for the nut 3 and the bolt 2.

[0035] The lower surface of the washer 5 is provided with a third ratchet 502, which engages with the upper surface of the component 6 to be connected. When the washer 5 is subjected to downward pressure from the nut 3, the third ratchet 502 will embed into the surface of the component 6, thus stopping the washer 5 from moving against the component 6. If the component 6 to be connected has high hardness and it is not convenient for the third ratchet 502 to embed, the third ratchet 502 can be replaced with a columnar body to engage with a pre-drilled hole on the component 6, thereby achieving the effect of stopping the washer 5 against the component 6.

[0036] The root of the nut 203 of the bolt 2 is provided with a second protrusion 201, which engages with the edge of the screw hole on the lower surface of the part to be connected 6, so that the bolt 2 stops moving with the part to be connected 6.

[0037] The inner ring of the washer 5 is provided with a second elastic locking point 503, which engages with the right-angle locking groove 202 on the surface of the stud in the middle section of the bolt 2. This prevents the washer 5 from rotating relative to the bolt 2.

[0038] The installation process in this embodiment is as follows:

[0039] The sheath 4 is nested on the nut 3, and the first elastic locking point 402 of the sheath 4 is pressed between the nut 3 and the washer 5.

[0040] The washer 5 is fitted onto the threaded section of the bolt 2 until the lower surface of the washer 5 is in contact with the upper surface of the part 6 to be connected, and the second elastic locking point 503 of the washer 5 is engaged in the right-angle locking groove 202 of the bolt 2.

[0041] Rotate the nut 3, and the nut 3 will drive the sheath 4 to rotate downward on the threaded section of the bolt 2 until the lower surface of the sheath 4 is in contact with the upper surface of the washer 5. The first ratchet 403 and the second ratchet 501 will mesh, and the third ratchet 502 of the washer 5 will be embedded in the upper surface of the part 6 to be connected.

[0042] The bolt 2 moves upward under the rotation of the nut 3 until the second protrusion 201 is embedded in the edge of the screw hole on the lower surface of the part to be connected 6.

[0043] The protective cover 1 is placed on the upper end of the protective sleeve 4, so that the first protrusion 101 is inserted into the square hole 401 of the protective sleeve.

[0044] At this point, the anti-loosening components are assembled.

[0045] The disassembly process in this embodiment is as follows:

[0046] The first protrusion 101 of the protective cover 1 is disengaged from the square hole 401 of the sleeve 4 under the pressure of the screwdriver until the protective cover 1 is detached from the sleeve 4. The screwdriver continues to pry up the upper edge of the square hole of the sleeve 4, causing the first elastic locking point 402 of the sleeve 4 to move upward and disengage from the lower surface of the nut 3 until the sleeve 4 is completely detached from the nut 3.

[0047] The nut 3 is screwed out from the threaded section of the bolt 2.

[0048] The washer 5 is withdrawn from the threaded section of the bolt 2.

[0049] The bolt 2 is removed from the screw hole of the part 6 to be connected.

[0050] At this point, the anti-loosening components have completed the entire disassembly process.

[0051] Example 2

[0052] like Figures 4 to 7 As shown, a novel anti-loosening component includes: bolt 2, sleeve 4, and washer 5.

[0053] like Figures 9 to 10 As shown, the bolt 2 passes through the washer 5 from top to bottom and is threaded into the part 6 to be connected. The sleeve 4 is nested on the nut 203 of the bolt 2. The lower surface of the sleeve 4 is provided with a first elastic locking point 402. The first elastic locking point 402 is placed between the nut of the bolt 2 and the washer 5, so that the lower surface of the sleeve 4 and the upper surface of the washer 5 are tightly fitted.

[0054] The lower surface of the sheath 4 is provided with a first ratchet 403, which engages with a second ratchet 501 on the upper surface of the washer 5. This serves to prevent rotation in the forward direction and stop movement in the reverse direction.

[0055] The upper side of the sheath 4 is provided with a square hole 401. The upper edge of the square hole 401 is higher than the upper surface of the nut 203, which facilitates the insertion of disassembly tools. The lower edge of the square hole 401 is lower than the upper surface of the nut 203, which facilitates the upward movement of the sheath 4 when it is disassembled.

[0056] The lower surface of the washer 5 is provided with a third ratchet 502, which engages with the upper surface of the component 6 to be connected. When the washer 5 is subjected to downward pressure from the nut 203, the third ratchet 502 will embed into the surface of the component 6 to be connected, thereby stopping the washer 5 from moving with the component 6.

[0057] A six-sided or cylindrical toothed nut 203 is fitted with a six-sided or cylindrical toothed sleeve 4, respectively. This allows the nut 203 and the sleeve 4 to rotate together as a single unit.

[0058] The installation process in this embodiment is as follows:

[0059] The sleeve 4 is fitted onto the bolt 2 and nut 203, and the first elastic locking point 402 of the sleeve 4 is pressed against the lower end face of the nut 203.

[0060] After the washer 5 is fitted onto the bolt 2, the bolt 2 is screwed into the threaded hole of the part to be connected 6 until the lower surface of the sheath 4 is in contact with the upper surface of the washer 5, the first ratchet 403 and the second ratchet 501 engage, and the third ratchet 502 of the washer 5 is embedded in the upper surface of the part to be connected 6.

[0061] At this point, the anti-loosening components are assembled.

[0062] The disassembly process in this embodiment is as follows:

[0063] Use a screwdriver to pry open the upper frame of the square hole 401 on the sleeve 4, causing the first elastic locking point 402 of the sleeve 4 to move upward and disengage from the lower surface of the nut 203 until the sleeve 4 is completely detached from the bolt 2.

[0064] The bolt 2 is unscrewed from the threaded hole of the component 6 to be connected.

[0065] At this point, the anti-loosening components have completed the entire disassembly process.

[0066] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A novel anti-loosening component, characterized in that: The assembly includes a threaded fastener, a washer (5), and a sleeve (4). The washer (5) is disposed on the upper surface of the component to be connected (6). The threaded fastener fixes the component to be connected (6) and the washer (5). The upper end of the threaded fastener is nested with a sleeve (4) that mates with the washer (5). The lower surface of the sleeve (4) is provided with a first ratchet (403), which engages with a second ratchet (501) on the upper surface of the washer (5). The sheath (4) has a square hole (401) on its upper side. The upper edge of the square hole (401) is higher than the upper surface of the threaded fastener, and the lower edge of the square hole (401) is lower than the upper surface of the threaded fastener. The sheath (4) has a protective cover (1) on its upper end. The protective cover (1) has a first protrusion (101) on its lower side. The first protrusion (101) engages with the square hole (401). The washer (5) has a third ratchet (502) on its lower surface. The third ratchet (502) engages with the upper surface of the part to be connected (6). The threaded fastener consists of a bolt (2) and a nut (3). The bolt (2) passes through the part to be connected (6), the washer (5), and the nut (3) sequentially from bottom to top. The sheath (4) is nested outside the nut (3). The sheath (4) has a first elastic locking point (402) on its lower surface. Point (402) is placed between the nut (3) and the washer (5); the root of the nut (203) of the bolt (2) is provided with a second protrusion (201), which is engaged with the edge of the screw hole on the lower surface of the part to be connected (6); the inner ring of the washer (5) is provided with a second elastic locking point (503), which is engaged with the right angle locking groove (202) on the surface of the stud in the middle section of the bolt (2).

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