Anti-loose nut structure

Abstract

The utility model relates to nut structure device technical field provides a nut structure of anti -loosening, including upper anti -loosening nut, the upper anti -loosening nut inner surface is equipped with upper through -hole, first thread groove, the inner surface of upper through -hole is equipped with, beryllium copper alloy fastening block and pressure chamber contact, the pressure chamber exerts pressure to beryllium copper alloy fastening block surface in the process of rotation, beryllium copper alloy fastening block is deformed to the outside bolt center direction under the pressure of pressure chamber, improve the friction and fastening between second thread groove and the surface thread of outside bolt, reach the effect of anti -loosening, a plurality of compensation incisions on beryllium copper alloy fastening block are beryllium copper alloy fastening block inward deformation reserve space, first friction particle and second friction particle adopt quartz sand material, can significantly increase the friction resistance between pressure chamber and beryllium copper alloy fastening block, upper antiskid sealing pad and lower antiskid sealing pad contact tight pressure, avoid upper anti -loosening nut and lower anti -loosening nut relatively rotate.

Description

Technical Field

[0001] This utility model relates to the technical field of nut structure devices, and in particular to an anti-loosening nut structure. Background Technology

[0002] A nut is a common mechanical fastener, usually used in conjunction with a bolt or screw, to connect and secure two or more parts.

[0003] In the prior art, such as Chinese Publication No. CN206904029U, a nut is disclosed. This nut includes: a body segment, which is annular and has an internally threaded hole; and an annular end plate, which is fixed to the first end of the body segment and surrounds the internally threaded hole. The outer diameter of the annular end plate is larger than the outer diameter of the body segment to form a glue-filling space between the annular end plate and the body segment. A glue-filling hole is also formed on the annular end plate, communicating with the glue-filling space. According to this utility model, by gluing the nut into the mounting hole of a non-metallic part, it facilitates the screw-on fixing between non-metallic parts or between non-metallic and metallic parts. Furthermore, by providing a glue-filling hole and a glue outlet hole on the annular end plate, it facilitates the glue-filling operation for the operator.

[0004] While the above solutions have the advantages mentioned above, their disadvantages are that they lack a structure to effectively prevent the nut from loosening relative to the bolt when there is continuous vibration in the external environment. The nut is prone to gradually loosening due to continuous vibration or impact in the external environment, leading to connection failure and a decrease in the stability of the equipment or structure, which may cause safety accidents. Furthermore, the lack of a structure to improve the sealing, waterproofing, and gas-proofing performance of the nut can easily cause corrosion of the metal parts of the device, increase the equipment failure rate, and affect the service life and maintenance costs of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a nut structure that prevents loosening. This utility model is designed to effectively prevent the nut from loosening relative to the bolt when there is continuous vibration in the external environment. It avoids the nut from gradually loosening due to continuous vibration or impact in the external environment, which would lead to connection failure. It improves the stability of the equipment or structure, avoids safety accidents, and improves the sealing, waterproof and gas-proof performance of the nut. It also avoids corrosion of the metal parts of the device, reduces the equipment failure rate, increases the service life of the equipment and reduces maintenance costs.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an anti-loosening nut structure, comprising:

[0007] The upper anti-loosening nut, wherein the inner surface of the upper anti-loosening nut is provided with an upper through hole, further includes:

[0008] A first threaded groove is formed on the inner surface of the upper through hole. A pressure chamber is formed on the outer surface of the bottom of the upper anti-loosening nut. Multiple first friction particles are fixedly arranged on the outer surface of the pressure chamber, and these particles are evenly distributed on the pressure chamber. A beryllium copper alloy fastening block is movably connected to the pressure chamber. A lower anti-loosening nut is fixedly arranged on the outer surface of the bottom of the beryllium copper alloy fastening block. A lower through hole is formed on the inner surface of the lower anti-loosening nut. A second threaded groove is formed on the inner surface of the lower through hole. Multiple second friction particles are fixedly arranged on the outer surface of the beryllium copper alloy fastening block, and these particles are evenly distributed on the beryllium copper alloy fastening block. The beryllium copper alloy fastening block has multiple compensation cuts on its outer surface, which are U-shaped. The beryllium copper alloy fastening block contacts the pressure chamber. During rotation, the pressure chamber applies pressure to the surface of the beryllium copper alloy fastening block. Under the pressure of the pressure chamber, the beryllium copper alloy fastening block deforms towards the center of the outer bolt, increasing the friction and fastening between the second thread groove and the thread on the surface of the outer bolt, thus preventing loosening. The multiple compensation cuts on the beryllium copper alloy fastening block provide space for inward deformation. The first and second friction particles are made of quartz sand, which can significantly increase the frictional resistance between the pressure chamber and the beryllium copper alloy fastening block.

[0009] Preferably, an upper anti-slip sealing pad is fixedly provided on the bottom outer surface of the upper anti-loosening nut. The outer diameter of the upper anti-slip sealing pad is slightly wider than the bottom diameter of the pressurization chamber. The upper anti-slip sealing pad prevents the upper anti-loosening nut from rotating.

[0010] Preferably, a lower anti-slip sealing pad is fixedly provided on the top outer surface of the lower anti-loosening nut. The inner diameter of the lower anti-slip sealing pad is slightly wider than the bottom diameter of the beryllium copper alloy fastening block. The lower anti-slip sealing pad prevents the lower anti-loosening nut from rotating relative to the ground.

[0011] Preferably, the cross-section of the outer cylindrical main structure of the upper and lower anti-loosening nuts is an equilateral hexagon with the same shape and size, and the upper and lower anti-loosening nuts are fastened together with the external bolts.

[0012] Preferably, the pitch and depth of the first and second threaded grooves inside the upper and lower anti-loosening nuts are the same, allowing them to be threadedly connected to the same external bolt. The first and second threaded grooves contact and fix the external bolt thread surface.

[0013] Preferably, an upper sealing rubber pad and a lower sealing rubber pad are fixedly provided on the top of the upper anti-loosening nut and the bottom outer surface of the lower anti-loosening nut, respectively. The diameter of the hole in the middle of the upper sealing rubber pad and the lower sealing rubber pad is slightly wider than the diameter of the upper through hole and the lower through hole. The upper sealing rubber pad and the lower sealing rubber pad deform and fill the gap between the upper anti-loosening nut and the external contact surface, thereby sealing the upper anti-loosening nut and the lower anti-loosening nut.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, an upper anti-loosening nut and a lower anti-loosening nut are screwed into an external bolt, with the first and second threaded grooves contacting the threaded surface of the external bolt. When the upper and lower anti-loosening nuts approach each other, a beryllium copper alloy fastening block contacts the pressure chamber. During rotation, the pressure chamber applies pressure to the surface of the beryllium copper alloy fastening block, causing it to deform towards the center of the external bolt under pressure. This increases the friction and fastening between the second threaded groove and the threaded surface of the external bolt, thus preventing loosening. Multiple compensation cuts on the beryllium copper alloy fastening block provide space for inward deformation. The first and second friction particles are made of quartz sand, which significantly increases the frictional resistance between the pressure chamber and the beryllium copper alloy fastening block. The upper and lower anti-slip sealing pads are pressed tightly together to prevent relative rotation between the upper and lower anti-loosening nuts.

[0016] 2. In this utility model, when the upper sealing rubber pad at the top of the upper anti-loosening nut and the lower sealing rubber pad at the bottom of the lower anti-loosening nut come into contact with the external structure, the upper sealing rubber pad and the lower sealing rubber pad deform and fill the gap between the upper anti-loosening nut and the external contact surface, thus sealing the upper anti-loosening nut and the lower anti-loosening nut and improving the sealing, waterproof and gas-proof performance of the device. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of an anti-loosening nut structure provided by this utility model;

[0018] Figure 2 A three-dimensional schematic diagram of the internal structure of an anti-loosening nut structure provided by this utility model;

[0019] Figure 3 A side view of an anti-loosening nut structure provided by this utility model;

[0020] Figure 4 This utility model provides an anti-loosening nut structure. Figure 1 A magnified three-dimensional structural diagram at point A in the diagram.

[0021] Legend:

[0022] 1. Upper anti-loosening nut; 2. Lower anti-loosening nut; 3. Upper through hole; 4. First threaded groove; 5. First friction particle; 6. Beryllium copper alloy fastening block; 7. Lower sealing rubber gasket; 8. Lower through hole; 9. Second threaded groove; 10. Pressure chamber; 11. Upper anti-slip sealing pad; 12. Compensation notch; 13. Second friction particle; 14. Lower anti-slip sealing pad; 15. Upper sealing rubber gasket. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as Figures 1 to 4 As shown, this utility model provides an anti-loosening nut structure, including an upper anti-loosening nut 1. The inner surface of the upper anti-loosening nut 1 has an upper through hole 3 and a first threaded groove 4. A pressure chamber 10 is formed on the outer surface of the bottom of the upper anti-loosening nut 1. Multiple first friction particles 5 are fixedly arranged on the outer surface of the pressure chamber 10. The multiple first friction particles 5 are evenly distributed on the pressure chamber 10. A beryllium copper alloy fastening block 6 is movably connected to the pressure chamber 10. A lower anti-loosening nut 2 is fixedly arranged on the outer surface of the bottom of the beryllium copper alloy fastening block 6. The inner surface of the lower anti-loosening nut 2 has a lower through hole 8 and a second threaded groove 9. Multiple second friction particles 13 are fixedly arranged on the outer surface of the beryllium copper alloy fastening block 6. The beryllium copper alloy fastening block 6 is uniformly arranged with multiple compensation cuts 12 on its outer surface. These cuts are U-shaped. The beryllium copper alloy fastening block 6 contacts the pressure chamber 10. During rotation, the pressure chamber 10 applies pressure to the surface of the beryllium copper alloy fastening block 6. Under the pressure of the pressure chamber 10, the beryllium copper alloy fastening block 6 deforms towards the center of the outer bolt, increasing the friction and fastening between the second thread groove 9 and the thread on the outer bolt surface, thus preventing loosening. The multiple compensation cuts 12 on the beryllium copper alloy fastening block 6 provide space for inward deformation. The first friction particles 5 and the second friction particles 13 are made of quartz sand, which can significantly increase the frictional resistance between the pressure chamber 10 and the beryllium copper alloy fastening block 6.

[0026] Furthermore, such as Figures 1 to 4As shown, an upper anti-slip sealing pad 11 is fixedly installed on the bottom outer surface of the upper anti-loosening nut 1. The outer diameter of the upper anti-slip sealing pad 11 is slightly wider than the bottom diameter of the pressure chamber 10. The upper anti-slip sealing pad 11 prevents the upper anti-loosening nut 1 from rotating.

[0027] Furthermore, such as Figures 1 to 4 As shown, a lower anti-slip sealing pad 14 is fixedly installed on the top outer surface of the lower anti-loosening nut 2. The inner diameter of the lower anti-slip sealing pad 14 is slightly wider than the bottom diameter of the beryllium copper alloy fastening block 6. The lower anti-slip sealing pad 14 prevents the lower anti-loosening nut 2 from rotating relative to each other.

[0028] Furthermore, such as Figures 1 to 4 As shown, the cross-section of the outer cylindrical main structure of the upper anti-loosening nut 1 and the lower anti-loosening nut 2 is an equilateral hexagon with the same shape and size. The upper anti-loosening nut 1 and the lower anti-loosening nut 2 are fastened together with the external bolts.

[0029] Furthermore, such as Figures 1 to 4 As shown, the pitch and depth of the first threaded groove 4 and the second threaded groove 9 inside the upper lock nut 1 and the lower lock nut 2 are the same, and they can be threaded together with the same external bolt. The first threaded groove 4 and the second threaded groove 9 contact and fix with the threaded surface of the external bolt.

[0030] Furthermore, such as Figures 1 to 4 As shown, an upper sealing rubber gasket 15 and a lower sealing rubber gasket 7 are fixedly installed on the top of the upper anti-loosening nut 1 and the bottom outer surface of the lower anti-loosening nut 2, respectively. The diameter of the hole in the middle of the upper sealing rubber gasket 15 and the lower sealing rubber gasket 7 is slightly wider than the diameter of the upper through hole 3 and the lower through hole 8. The upper sealing rubber gasket 15 and the lower sealing rubber gasket 7 deform and fill the gap between the upper anti-loosening nut 1 and the lower anti-loosening nut 2 and the external contact surface, thus sealing the upper anti-loosening nut 1 and the lower anti-loosening nut 2.

[0031] Working principle: The upper lock nut 1 and lower lock nut 2 are screwed into the external bolt, respectively. The first thread groove 4 and the second thread groove 9 contact the threaded surface of the external bolt. When the upper lock nut 1 and the lower lock nut 2 approach each other, the beryllium copper alloy fastening block 6 contacts the pressure chamber 10. During rotation, the pressure chamber 10 applies pressure to the surface of the beryllium copper alloy fastening block 6. Under the pressure of the pressure chamber 10, the beryllium copper alloy fastening block 6 deforms towards the center of the external bolt, increasing the friction and fastening between the second thread groove 9 and the threaded surface of the external bolt, thus preventing loosening. Multiple compensation cuts 12 on the beryllium copper alloy fastening block 6 provide space for inward deformation. The friction particles 5 and the second friction particles 13 are made of quartz sand, which can significantly increase the frictional resistance between the pressure chamber 10 and the beryllium copper alloy fastening block 6. The upper anti-slip sealing pad 11 and the lower anti-slip sealing pad 14 are in close contact to prevent the upper anti-loosening nut 1 and the lower anti-loosening nut 2 from rotating relative to each other. When the upper sealing rubber pad 15 at the top of the upper anti-loosening nut 1 and the lower sealing rubber pad 7 at the bottom of the lower anti-loosening nut 2 come into contact with the external structure, the upper sealing rubber pad 15 and the lower sealing rubber pad 7 deform and fill the gap between the upper anti-loosening nut 1 and the lower anti-loosening nut 2 and the external contact surface, thus sealing the upper anti-loosening nut 1 and the lower anti-loosening nut 2 and improving the sealing, waterproof and gas-proof performance of the device.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A nut structure for preventing loosening, comprising: An upper anti-loosening nut (1), wherein an upper through hole (3) is provided on the inner surface of the upper anti-loosening nut (1), characterized in that it further includes: A first threaded groove (4) is formed on the inner surface of the upper through hole (3). A pressure chamber (10) is formed on the bottom outer surface of the upper anti-loosening nut (1). A plurality of first friction particles (5) are fixedly arranged on the outer surface of the pressure chamber (10). The plurality of first friction particles (5) are evenly arranged on the pressure chamber (10). A beryllium copper alloy fastening block (6) is movably connected to the pressure chamber (10). A lower anti-loosening screw is fixedly arranged on the bottom outer surface of the beryllium copper alloy fastening block (6). The lower anti-loosening nut (2) has a lower through hole (8) on its inner surface and a second thread groove (9) on its inner surface. The beryllium copper alloy fastening block (6) has multiple second friction particles (13) fixedly arranged on its outer surface. The multiple second friction particles (13) are evenly arranged on the beryllium copper alloy fastening block (6). The beryllium copper alloy fastening block (6) has multiple compensation cuts (12) on its outer surface. The multiple compensation cuts (12) are U-shaped.

2. The anti-loosening nut structure according to claim 1, characterized in that: An upper anti-slip sealing pad (11) is fixedly provided on the bottom outer surface of the upper anti-loosening nut (1), and the outer diameter of the upper anti-slip sealing pad (11) is slightly wider than the bottom diameter of the pressure chamber (10).

3. The anti-loosening nut structure according to claim 2, characterized in that: The lower anti-loosening nut (2) has a lower anti-slip sealing pad (14) fixedly installed on the top outer surface, and the inner diameter of the upper anti-slip sealing pad (11) is slightly wider than the bottom diameter of the beryllium copper alloy fastening block (6).

4. The anti-loosening nut structure according to claim 1, characterized in that: The cross-sections of the outer cylindrical main structure of the upper anti-loosening nut (1) and the lower anti-loosening nut (2) are equilateral hexagons with the same shape and size.

5. The anti-loosening nut structure according to claim 1, characterized in that: The pitch and depth of the first threaded groove (4) and the second threaded groove (9) inside the upper anti-loosening nut (1) and the lower anti-loosening nut (2) are the same, and they can be threaded together with the same external bolt.

6. The anti-loosening nut structure according to claim 1, characterized in that: The top of the upper anti-loosening nut (1) and the bottom of the lower anti-loosening nut (2) are respectively fixed with an upper sealing rubber pad (15) and a lower sealing rubber pad (7). The diameter of the hole in the middle of the upper sealing rubber pad (15) and the lower sealing rubber pad (7) is slightly wider than the diameter of the upper through hole (3) and the lower through hole (8).

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