Anti-loosening and heat-resisting fastener coated with nylon glue

Abstract

The invention discloses an anti-loosening and heat-resisting fastener coated with nylon glue. The anti-loosening and heat-resisting fastener comprises a fastener head. And a threaded rod portion; the threaded rod part is connected to the fastener head part, the threaded rod part comprises a fixing rod and an anti-loosening body, the anti-loosening body is elastically connected to the fixing rod, threads on the fixing rod are matched with threads on the anti-loosening body, and a nut is connected to the threaded rod part in a threaded mode. The threaded rod part is designed to be of a split structure, the threaded rod part comprises the fixing rod and the anti-loosening body, the mounting groove and the limiting groove are formed in the fixing rod, the reinforcing column body of the anti-loosening body is arranged in the mounting groove and connected to the wall of the mounting groove through the spring, the connecting body is mounted in the limiting groove, and the magnet is arranged in the mounting groove; the magnetic attraction body is arranged on the connecting body, the spring is kept in a normal state, and when the fastener is installed, fixed through the nut and vibrates at a high speed, the spring can play a role in buffering the whole threaded rod part, and the fastener is prevented from loosening.

Description

Technical Field

[0001] The present invention belongs to the technical field of fasteners, and particularly relates to a loosening-proof and heat-resistant fastener coated with nylon glue. Background Art

[0002] Fasteners refer to a general term for a class of mechanical parts used to firmly connect two or more parts (or components) into a whole. They usually include bolts, nuts, screws, studs, washers, etc.

[0003] In an environment with frequent mechanical vibrations, such as equipment like automotive engines and industrial machine tools, fasteners are subjected to continuous periodic loads. This repeated vibration gradually reduces the friction between the nut and the bolt, resulting in the gradual loosening of the fasteners. Over time, the degree of loosening will continuously increase, and ultimately may lead to the separation of equipment components, triggering equipment failures and even safety accidents. Summary of the Invention

[0004] The purpose of the present invention is to provide a loosening-proof and heat-resistant fastener coated with nylon glue to solve the problem that in an environment with frequent mechanical vibrations, such as equipment like automotive engines and industrial machine tools, fasteners are subjected to continuous periodic loads. This repeated vibration gradually reduces the friction between the nut and the bolt, resulting in the gradual loosening of the fasteners. Over time, the degree of loosening will continuously increase, and ultimately may lead to the separation of equipment components, triggering equipment failures and even safety accidents.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: A loosening-proof and heat-resistant fastener coated with nylon glue, comprising:

[0006] The head of the fastener;

[0007] And a threaded rod portion; which is connected to the head of the fastener, the threaded rod portion includes a fixed rod and a loosening-proof body, the loosening-proof body is elastically connected to the fixed rod, the threads on the fixed rod and the loosening-proof body are matched, and a nut is screwed onto the threaded rod portion.

[0008] As a further description of the above technical solution:

[0009] The fixed rod is provided with an installation groove and a plurality of limiting grooves, the loosening-proof body includes a reinforcing column and a plurality of connecting bodies, the reinforcing column is located in the installation groove, and the plurality of connecting bodies are correspondingly located in the plurality of limiting grooves.

[0010] As a further description of the above technical solution:

[0011] A connecting groove is provided in the installation groove, a magnet is installed in the connecting groove, a magnetic absorber is provided on the reinforcing cylinder, and the magnet and the magnetic absorber attract each other magnetically.

[0012] As a further description of the above technical solution:

[0013] A spring is provided on the reinforcing cylinder, and the other end of the spring is connected to the wall of the installation groove.

[0014] As a further description of the above technical solution:

[0015] The number of the limiting grooves is at least 3.

[0016] As a further description of the above technical solution:

[0017] A first thread is provided on the threaded rod portion, a second thread is provided on the connecting body, and the threaded rod portion and the connecting body are connected so that the first thread and the second thread are butted.

[0018] As a further description of the above technical solution:

[0019] A nylon glue layer is provided on the threaded rod portion.

[0020] As a further description of the above technical solution:

[0021] A theft-proof groove is provided on the threaded rod portion, and an anti-slip groove is provided in the theft-proof groove.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, by designing the threaded rod portion into a split structure, the threaded rod portion includes a fixed rod and an anti-loosening body. An installation groove and a limiting groove are provided in the fixed rod. By arranging the reinforcing cylinder of the anti-loosening body in the installation groove and connecting it to the wall of the installation groove through a spring, the connecting body is installed in the limiting groove. A magnet is provided in the installation groove, and a magnetic absorber is provided on the connecting body. The spring remains in a normal state. When the fastener is installed and fixed by a nut, during high-speed vibration, the spring can play a buffering role for the whole threaded rod portion, and at the same time, with the cooperation of magnetic and elastic connections, the loosening of the fastener is avoided.

[0024] 2. In the present invention, by providing a theft-proof groove on the head of the nut and an anti-slip groove in the theft-proof groove, this structure plays a theft-proof role. Special tools are required for disassembly, and at the same time, the anti-slip groove can prevent the disassembly tool from slipping.

[0025] 3. In the present invention, a multi-layer composite nylon glue coating is also provided on the threaded rod portion. The outer layer is made of a high heat-resistant material, and the inner layer is made of a material with a high friction coefficient. The outer layer material can be nylon 66 or nylon 12 with high temperature resistance, and the inner layer material can be nylon 6 or nylon with wear-resistant fillers added. Through the multi-layer design, both the heat resistance and the anti-loosening performance are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Exploded view of a loosening prevention and heat-resistant fastener coated with nylon glue Figure I .

[0028] Figure 2 Exploded view of a loosening prevention and heat-resistant fastener coated with nylon glue Figure II .

[0029] Figure 3 Exploded view of a loosening prevention and heat-resistant fastener coated with nylon glue Figure III .

[0030] Figure 4 Exploded view of a loosening prevention and heat-resistant fastener coated with nylon glue Figure IV .

[0031] Figure 5 Exploded view of a loosening prevention and heat-resistant fastener coated with nylon glue Figure V .

[0032] Legend:

[0033] 1 - Fastener head; 2 - Threaded rod portion; 21 - Fixed rod; 22 - Loosening prevention body; 221 - Reinforcing column; 222 - Connecting body; 3 - Nut; 4 - Installation groove; 5 - Limiting groove; 6 - Magnet; 7 - Magnetic attracting body; 8 - Spring; 9 - Anti-theft groove; 10 - Anti-slip groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0037] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention 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 invention.

[0039] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral 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 invention can be understood according to specific circumstances.

[0040] Please refer to Figures 1-5 , the present invention provides a technical solution: a nylon glue-coated anti-loosening and heat-resistant fastener, including:

[0041] Fastener head 1;

[0042] And a threaded rod portion 2; which is connected to the fastener head 1, the threaded rod portion 2 includes a fixed rod 21 and an anti-loosening body 22, the anti-loosening body 22 is elastically connected to the fixed rod 21, the threads on the fixed rod 21 and the anti-loosening body 22 match, and a nut 3 is screwed onto the threaded rod portion 2.

[0043] The fixing rod 21 is provided with an installation groove 4 and a plurality of limiting grooves. The anti-loosening body 22 includes a reinforcing cylinder 221 and a plurality of connecting bodies 222. The reinforcing cylinder 221 is located in the installation groove 4, and the plurality of connecting bodies 222 are correspondingly located in the plurality of limiting grooves.

[0044] A connecting groove is provided in the installation groove 4. The magnet 6 is installed in the connecting groove. A magnetic attracting body 7 is provided on the reinforcing cylinder 221. The magnet 6 and the magnetic attracting body 7 attract each other magnetically.

[0045] A spring 8 is provided on the reinforcing cylinder 221, and the other end of the spring 8 is connected to the wall of the installation groove 4.

[0046] The number of the limiting grooves is at least 3.

[0047] The threaded rod part 2 is provided with a first thread, and the connecting body 222 is provided with a second thread. The threaded rod part 2 and the connecting body 222 are connected so that the first thread and the second thread are butted.

[0048] The threaded rod part 2 is provided with a nylon glue layer.

[0049] The threaded rod part 2 is provided with an anti-theft groove 9, and an anti-slip groove 10 is provided in the anti-theft groove 9.

[0050] Working principle: By designing the threaded rod part into a split structure, the threaded rod part includes a fixing rod and an anti-loosening body. An installation groove and limiting grooves are provided in the fixing rod. The reinforcing cylinder of the anti-loosening body is arranged in the installation groove and is connected to the wall of the installation groove through a spring. The connecting body is installed in the limiting groove. A magnet is arranged in the installation groove, and a magnetic attracting body is arranged on the connecting body. The spring keeps in a normal state. When the fastener is installed and fixed by a nut, during high-speed vibration, the spring can play a buffering role for the whole threaded rod part, and at the same time, with the cooperation of magnetic and elastic connections, the loosening of the fastener can be avoided.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An anti-loosening and heat-resistant fastener coated with nylon glue, characterized in that: include: Fastener head; and a threaded shank; It is connected to the head of the fastener, the threaded rod portion includes a fixing rod and an anti-loosening body, the anti-loosening body is elastically connected to the fixing rod, the threads on the fixing rod and the anti-loosening body match, and the nut is screwed on the threaded rod portion.

2. The anti-loosening and heat-resistant fastener coated with nylon glue according to claim 1, characterized in that: The fixing rod is provided with an installation groove and a plurality of limiting grooves, the anti-loosening body comprises a reinforcing column and a plurality of connecting bodies, the reinforcing column is located in the installation groove, and a plurality of connecting bodies are correspondingly located in a plurality of limiting grooves.

3. The anti-loosening and heat-resistant fastener coated with nylon glue according to claim 2, characterized in that: A connecting groove is arranged in the installation groove, a magnet is arranged in the connecting groove, an attracting magnet is arranged on the reinforcement column, and the magnet and the attracting magnet are magnetically attracted to each other.

4. The anti-loosening and heat-resistant fastener coated with nylon glue according to claim 2, characterized in that: The reinforcing column is provided with a spring, and the other end of the spring is connected to the wall of the mounting groove.

5. The anti-loosening and heat-resistant fastener coated with nylon glue according to claim 2, characterized in that: The number of the limiting grooves is at least 3.

6. The anti-loosening and heat-resistant fastener coated with nylon glue according to claim 2, characterized in that: The threaded rod is provided with a first thread, the connecting body is provided with a second thread, and the threaded rod and the connecting body are connected so that the first thread and the second thread are butted against each other.

7. The anti-loosening and heat-resistant fastener coated with nylon glue according to claim 1, characterized in that: A nylon rubber layer is arranged on the threaded rod portion.

8. The anti-loosening and heat-resistant fastener coated with nylon glue according to claim 1, characterized in that: The threaded rod portion is provided with an anti-theft groove, and an anti-slip groove is provided in the anti-theft groove.

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