A locking combination washer bolt for fastening thin plates

Abstract

The utility model discloses a kind of anti-loose combination washer bolts for fastening sheet, comprising: bolt, the bolt is equipped with clamping groove, clamping spring is clamped in the clamping groove, conical elastic pad and silicone rubber gasket are successively sleeved on the bolt outer side, and the conical elastic pad and silicone rubber gasket are located above clamping spring.The utility model improves the anti-loose capacity of bolt by setting conical elastic pad and silicone rubber gasket, realizes the role of uniform stress and buffering by silicone rubber gasket pad between conical elastic pad and sheet, effectively avoids that sheet is damaged by different stress in local part, by embossed surface of conical elastic pad aligning bolt head, the stability of bolt is enhanced, further improve anti-loose capacity, when locking object is sheet, not only enough pre-tightening force can be provided, stress can be well and evenly distributed, avoid damage to sheet.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to an anti-loosening combination washer bolt for fastening thin plates. Background Technology

[0002] The combination of spring washers and bolts is the most common and simplest form of anti-loosening bolt. However, for fastening thin plates, spring washers often cause localized damage to the thin plate due to their small contact area and uneven stress distribution, leading to fastening failure. While flat washers apply stress more evenly, they offer poor or no anti-loosening effect. Therefore, for fastening thin plates with low strength, a combination washer bolt with both uniform stress application and good anti-loosening effect needs to be designed. Utility Model Content

[0003] The purpose of this invention is to provide an anti-loosening combination washer bolt for fastening thin plates, so as to solve the above-mentioned shortcomings in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a non-loosening combination washer bolt for fastening thin plates, comprising: a bolt, wherein a groove is provided on the bolt, a retaining spring is engaged in the groove, and a conical spring washer and a silicone rubber washer are sequentially sleeved on the outside of the bolt, wherein the conical spring washer and the silicone rubber washer are located above the retaining spring.

[0005] Furthermore, the bolt is divided into three sections: bolt head, waist-shaped shank, and threaded shank. The diameter of the waist-shaped shank is smaller than the maximum diameter of the threaded shank.

[0006] Furthermore, the maximum outer diameter of the snap ring is smaller than the maximum diameter of the screw.

[0007] Furthermore, the inner diameter of the silicone rubber gasket is slightly smaller than the diameter of the waist-shaped rod.

[0008] Furthermore, the top surface of the conical spring pad is provided with an elongated strip-shaped embossing that extends along the diameter direction, and the bottom surface of the conical spring pad is a flat surface.

[0009] Furthermore, a hexagonal hole is provided at the top of the bolt head, and the outer diameter of the bolt head is smaller than the outer diameter of the conical spring washer.

[0010] Furthermore, the outer diameter of the conical spring pad is the same as the outer diameter of the silicone rubber pad.

[0011] In the above technical solution, the anti-loosening combination washer bolt for fastening thin plates provided by this utility model has the following beneficial effects:

[0012] This invention enhances the anti-loosening capability of bolts by setting conical spring washers and silicone rubber gaskets. The silicone rubber gaskets placed between the conical spring washers and the thin plate achieve uniform stress and buffering, effectively preventing damage caused by uneven stress on the thin plate. The embossed surface of the conical spring washers aligns with the bolt head, enhancing the bolt's stability and further improving the anti-loosening capability. When the object being locked is a thin plate, it not only provides sufficient preload but also distributes stress evenly, preventing damage to the thin plate.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A structural schematic diagram provided for an embodiment of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram provided for an embodiment of the present utility model;

[0018] Figure 3 A front view provided for an embodiment of this utility model;

[0019] Figure 4 Partial front view of the structure provided for an embodiment of this utility model;

[0020] Figure 5 A schematic diagram of the bolt structure provided for an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Bolt; 101. Bolt head; 1011. Hexagonal hole; 102. Waist-shaped rod; 1021. Slot; 103. Screw; 2. Conical spring washer; 3. Silicone rubber gasket; 4. Snap ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0024] Please see Figures 1-5 A type of anti-loosening combination washer bolt for fastening thin plates includes: a bolt 1, a groove 1021 on the bolt 1, a retaining spring 4 engaged in the groove 1021, and a conical spring washer 2 and a silicone rubber washer 3 sequentially sleeved on the outside of the bolt 1, with the conical spring washer 2 and the silicone rubber washer 3 located above the retaining spring 4.

[0025] Specifically, this utility model enhances the anti-loosening capability of bolt 1 by setting a conical spring washer 2 and a silicone rubber washer 3. The silicone rubber washer 3 is placed between the conical spring washer 2 and the thin plate to achieve uniform stress and buffering effect, effectively avoiding damage caused by uneven stress in local areas of the thin plate. The embossed surface of the conical spring washer 2 is aligned with the bolt head 101 to enhance the stability of bolt 1 and further improve the anti-loosening capability. When the object being locked is a thin plate, it can not only provide sufficient preload, but also distribute stress evenly and well, avoiding damage to the thin plate.

[0026] Furthermore, bolt 1 is divided into three sections: bolt head 101, waist-shaped shank 102, and threaded shank 103. The diameter of waist-shaped shank 102 is smaller than the maximum diameter of threaded shank 103.

[0027] Specifically, the maximum diameter of the screw 103 is smaller than the outer diameter of the bolt head 101, and the diameter of the through hole opened on the thin plate is larger than the maximum diameter of the screw 103 but smaller than the outer diameter of the bolt head 101, so as to ensure that the waist-shaped rod 102 and the screw 103 can pass through the thin plate when the bolt 1 is assembled.

[0028] Furthermore, the maximum outer diameter of the snap ring 4 is smaller than the maximum diameter of the screw 103.

[0029] Specifically, when assembling bolt 1, snap ring 4 can follow screw 103 through the through hole opened in the thin plate, while tapered spring washer 2 and silicone rubber gasket 3 will abut against the thin plate.

[0030] Furthermore, the inner diameter of the silicone rubber gasket 3 is slightly smaller than the diameter of the waist-shaped rod 102, and the outer diameter of the conical spring pad 2 is the same as that of the silicone rubber gasket 3.

[0031] Specifically, the inner diameter of the silicone rubber gasket 3 is smaller than the outer diameter of the waist-shaped rod 102. When the silicone rubber gasket 3 is fitted onto the waist-shaped rod 102, the silicone rubber gasket 3 will undergo slight elastic deformation, causing the silicone rubber gasket 3 to fit tightly against the outer side of the waist-shaped rod 102, achieving coaxial arrangement between the silicone rubber gasket 3 and the waist-shaped rod 102. The position of the conical spring pad 2 and the silicone rubber gasket 3 is limited by the retaining spring 4, so that the conical spring pad 2 and the silicone rubber gasket 3 are clamped between the bolt head 101 and the retaining spring 4. The position of the conical spring pad 2 is adjusted so that it is flush with the outer surface of the silicone rubber gasket 3, thereby achieving a coaxial arrangement of the conical spring pad 2 and the silicone rubber gasket 3. This, in turn, ensures that the bolt head 101, the waist-shaped rod 102, and the silicone rubber gasket 3 are arranged coaxially. When the bolt head 101 presses the conical spring pad 2 and the silicone rubber gasket 3 onto the thin plate, the elastic force of the conical spring pad 2 is evenly distributed radially along the waist-shaped rod 102, so that the stress is evenly distributed on the thin plate. This method can be applied to thinner plates.

[0032] Furthermore, the top surface of the conical spring pad 2 is provided with an elongated strip-shaped embossing that extends along the diameter direction, and the bottom surface of the conical spring pad 2 is flat. The flat side of the conical spring pad 2 is attached to the top surface of the silicone rubber gasket 3. By providing an elongated strip-shaped embossing on the top surface of the conical spring pad 2, the friction between the bolt head 101 and the conical spring pad 2 is increased, thereby improving the anti-loosening ability.

[0033] Furthermore, a hexagonal hole 1011 is provided on the top of the bolt head 101. The outer diameter of the bolt head 101 is smaller than the outer diameter of the conical spring washer 2. By providing the hexagonal hole 1011, the traditional external hexagonal head is replaced, which improves the safety performance and reduces the possibility of injury caused by collision with the bolt head 101.

[0034] In this utility model, the thickness of the conical surface with the elongated embossed pattern on the top surface of the conical spring pad 2 is 30% of the thickness of the conical spring pad 2, and the maximum depth of the elongated embossed pattern is 30% of the thickness of the conical surface.

[0035] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A locking combination washer bolt for fastening thin plates, comprising: The bolt (1) is characterized in that: a groove (1021) is provided on the bolt (1), a retaining spring (4) is engaged in the groove (1021), and a conical spring washer (2) and a silicone rubber gasket (3) are sequentially sleeved on the outside of the bolt (1), and the conical spring washer (2) and the silicone rubber gasket (3) are located above the retaining spring (4).

2. The anti-loosening combination washer bolt for fastening thin plates according to claim 1, characterized in that, The bolt (1) is divided into three sections: bolt head (101), waist-shaped shank (102), and screw (103). The diameter of the waist-shaped shank (102) is smaller than the maximum diameter of the screw (103).

3. The anti-loosening combination washer bolt for fastening thin plates according to claim 2, characterized in that, The maximum outer diameter of the snap ring (4) is smaller than the maximum diameter of the screw (103).

4. The anti-loosening combination washer bolt for fastening thin plates according to claim 2, characterized in that, The inner diameter of the silicone rubber gasket (3) is slightly smaller than the diameter of the waist-shaped rod (102).

5. A locking combination washer bolt for fastening thin plates according to claim 1, characterized in that, The top surface of the conical elastic pad (2) is provided with an elongated strip embossed pattern that extends along the diameter direction, and the bottom surface of the conical elastic pad (2) is a plane.

6. A locking combination washer bolt for fastening thin plates according to claim 2, characterized in that, The top of the bolt head (101) is provided with a hexagonal hole (1011), and the outer diameter of the bolt head (101) is smaller than the outer diameter of the conical spring washer (2).

7. A locking combination washer bolt for fastening thin plates according to claim 1, characterized in that, The outer diameter of the conical elastic pad (2) is the same as the outer diameter of the silicone rubber pad (3).

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