Multi-tooth injection molding nut

Abstract

The utility model relates to the field of fasteners, and discloses a multi-tooth type injection molding nut which comprises a main body, friction teeth are arranged at the positions, close to the upper side edge and the lower side edge, of the center of the side wall of the main body respectively, and bosses are fixedly connected to the positions, close to the center, of the upper end face and the lower end face of the main body respectively. Through holes are formed in the positions, close to the edges of the two sides, of the center of the upper end face of the boss located on the upper side respectively, a plurality of leakage holes are formed in the inner side walls of the two through holes respectively, a high-temperature-resistant layer is arranged in the side wall of the main body, a wear-resistant layer and a reinforcing layer are arranged on the two sides of the high-temperature-resistant layer respectively, and a chemical-resistant layer is arranged on one side of the reinforcing layer. According to the utility model, the plurality of leakage holes are formed in the inner side wall of the main body, and the plurality of leakage holes are communicated with the two through holes, so that the screwing efficiency can be improved by pouring lubricating oil into the main body under the condition that the main body is not easy to screw out, and meanwhile, the comprehensive use performance of the main body is improved and the service life of the main body is prolonged by mixing various materials.

Description

Technical Field

[0001] The utility model relates to the field of fasteners, in particular to a multi-tooth injection nut. Background Art

[0002] Injection molded nuts are nuts produced using the injection molding process, usually made of plastic materials. Injection molding is a common plastic processing method that injects molten plastic into a mold and forms a product of the desired shape after cooling and solidification. The main function of injection molded nuts is to provide reliable threaded connections in plastic products so that different parts can be firmly assembled together. They are commonly used in the production of plastic products in the automotive industry, electronic equipment, furniture manufacturing, construction and other fields. Multi-tooth injection molded nuts are injection molded nuts with multiple thread teeth, usually used in situations where greater torque transmission or a more secure connection is required.

[0003] However, the existing multi-tooth injection molded nuts still have some shortcomings and areas for improvement in actual use. Most of the existing injection molded nuts are made directly by plastic casting, which causes the external teeth to easily cause wear during long-term use. When the wear is large, the nut is not easy to be twisted, and when the injection molded nut is installed for a long time, it will be difficult to remove, affecting the use effect. Therefore, technicians in this field provide a multi-tooth injection molded nut to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a multi-tooth injection nut is proposed. A plurality of leakage holes are arranged on the inner side wall of the main body, and the plurality of leakage holes are interconnected with two through holes. Lubricating oil can be poured inside to improve the screwing efficiency when it is difficult to screw out. At the same time, the main body is made of a mixture of multiple materials to improve its comprehensive performance and increase its service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-tooth injection nut, comprising a main body, wherein friction teeth are respectively arranged at the center of the side wall of the main body near the upper and lower side edges, the upper and lower end surfaces of the main body are respectively fixedly connected with bosses near the center, and through holes are respectively arranged at the center of the upper end surface of the boss located on the upper side near the two side edges, and the two through holes sequentially penetrate the upper end surface of the upper boss, the upper end surface of the main body and the upper end surface of the lower boss and respectively pass to the lower end, and a plurality of leakage holes are respectively arranged on the inner side walls of the two through holes, and the plurality of leakage holes respectively penetrate the inner side walls of the two through holes and respectively pass to the inside of the main body, and a high-temperature resistant layer is arranged inside the side wall of the main body, and a wear-resistant layer and a reinforcement layer are respectively arranged on both sides of the high-temperature resistant layer, and a chemical-resistant layer is arranged on one side of the reinforcement layer;

[0006] Through the above technical solution, by arranging a plurality of leakage holes on the inner wall of the main body, the plurality of leakage holes are interconnected with the two through holes, and lubricating oil can be poured inside to improve the twisting efficiency when it is difficult to twist out. At the same time, by setting the main body to be made of a mixture of multiple materials, its comprehensive performance is improved and its service life is increased.

[0007] Furthermore, an internal thread is provided on the inner side wall of the main body;

[0008] The above technical solution makes it easy to connect with other structures.

[0009] Furthermore, the aperture of the leakage hole is smaller than the aperture of the through hole;

[0010] Through the above technical solution, lubricating oil can be injected through the cooperation between the leakage hole and the through hole.

[0011] Furthermore, the wear-resistant layer is made of nylon;

[0012] Through the above technical solution, higher strength and wear resistance are achieved.

[0013] Furthermore, the material of the high temperature resistant layer is polyetheretherketone;

[0014] Through the above technical solution, it has excellent high temperature resistance, can be used stably for a long time at high temperature, and maintains good mechanical properties and chemical stability.

[0015] Furthermore, the material of the reinforcement layer is carbon fiber reinforced polyimide;

[0016] Through the above technical solution, the mechanical properties of the composite material can be significantly improved, so that it has excellent tensile strength and bending stiffness.

[0017] Furthermore, the material of the chemical resistant layer is polytetrafluoroethylene;

[0018] Through the above technical solution, it has good corrosion resistance to most chemical substances and can withstand the erosion of various corrosive media such as acids, alkalis, solvents, etc.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, a plurality of leakage holes are arranged on the inner side wall of the main body, and the plurality of leakage holes are interconnected with the two through holes, so that lubricating oil can be poured inside to improve the twisting efficiency when it is difficult to twist out.

[0021] 2. In the utility model, the main body is made of a mixture of multiple materials, thereby improving its comprehensive performance and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an axial view of a multi-tooth injection nut proposed by the utility model;

[0023] Figure 2 This is a front cross-sectional view of a multi-tooth injection nut proposed by the utility model;

[0024] Figure 3 This is an isometric view from another perspective of a multi-tooth injection nut proposed by the utility model;

[0025] Figure 4 The utility model is a partial cross-sectional view of a multi-tooth injection nut.

[0026] Legend:

[0027] 1. Boss; 2. Through hole; 3. Main body; 301. Wear-resistant layer; 302. High temperature resistant layer; 303. Reinforcement layer; 304. Chemical resistant layer; 4. Friction teeth; 5. Internal thread; 6. Leakage hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-4 The utility model provides an embodiment: a multi-tooth injection nut, including a main body 3, friction teeth 4 are respectively arranged at the center of the side wall of the main body 3 near the upper and lower side edges, bosses 1 are respectively fixedly connected at the center of the upper and lower end surfaces of the main body 3, through holes 2 are respectively arranged at the center of the upper end surface of the upper boss 1 near the two side edges, the two through holes 2 successively penetrate the upper end surface of the upper boss 1, the upper end surface of the main body 3 and the upper end surface of the lower boss 1 and respectively pass to the lower end, a plurality of leakage holes 6 are respectively arranged on the inner side walls of the two through holes 2, and the plurality of leakage holes 6 respectively penetrate the inner side walls of the two through holes 2 and respectively pass to the interior of the main body 3, a high temperature resistant layer 302 is arranged inside the side wall of the main body 3, a wear-resistant layer 301 and a reinforcement layer 303 are respectively arranged on both sides of the high temperature resistant layer 302, and a chemical resistant layer 304 is arranged on one side of the reinforcement layer 303.

[0030] An internal thread 5 is provided on the inner wall of the main body 3, which is convenient for connection with other structures. The aperture of the leakage hole 6 is smaller than the aperture of the through hole 2, and lubricating oil can be injected through the cooperation between the leakage hole 6 and the through hole 2. The wear-resistant layer 301 is made of nylon, which has high strength and wear resistance. The high-temperature resistant layer 302 is made of polyetheretherketone, which has excellent high-temperature resistance, can be used stably for a long time at high temperatures, and maintain good mechanical properties and chemical stability. The reinforcement layer 303 is made of carbon fiber reinforced polyimide, which can significantly improve the mechanical properties of the composite material and make it have excellent tensile strength and bending stiffness. The chemical-resistant layer 304 is made of polytetrafluoroethylene, which has good corrosion resistance to most chemical substances and can withstand the erosion of various corrosive media such as acids, alkalis, and solvents.

[0031] Working principle: The utility model is a multi-tooth injection nut. A plurality of leakage holes 6 are arranged on the inner wall of the main body 3. The plurality of leakage holes 6 are interconnected with the two through holes 2. Lubricating oil can be poured inside to improve the screwing efficiency when it is difficult to screw out. At the same time, the main body 3 is made of a mixture of multiple materials to improve its comprehensive performance and increase its service life.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-tooth injection-molded nut, comprising a main body (3), characterized in that: The side wall of the main body (3) is provided with friction teeth (4) at the center near the upper and lower side edges, and the upper and lower end surfaces of the main body (3) are fixedly connected with bosses (1) at the center, and the upper end surface of the upper boss (1) is provided with through holes (2) at the center near the side edges. The two through holes (2) penetrate the upper end surface of the upper boss (1), the upper end surface of the main body (3) and the upper end surface of the lower boss (1) in sequence and are respectively connected to the lower end. A plurality of leakage holes (6) are respectively provided on the inner side walls of the two through holes (2). The plurality of leakage holes (6) respectively penetrate the inner side walls of the two through holes (2) and are respectively connected to the inside of the main body (3). A high temperature resistant layer (302) is provided inside the side wall of the main body (3). A wear resistant layer (301) and a reinforcement layer (303) are respectively provided on both sides of the high temperature resistant layer (302). A chemical resistant layer (304) is provided on one side of the reinforcement layer (303).

2. A multi-tooth injection nut according to claim 1, characterized in that: An internal thread (5) is provided on the inner side wall of the main body (3).

3. The multi-tooth injection nut according to claim 1, characterized in that: The aperture of the leakage hole (6) is smaller than the aperture of the through hole (2).

4. The multi-tooth injection nut according to claim 1, characterized in that: The material of the wear-resistant layer (301) is nylon.

5. The multi-tooth injection nut according to claim 1, characterized in that: The material of the high temperature resistant layer (302) is polyetheretherketone.

6. The multi-tooth injection nut according to claim 1, characterized in that: The material of the reinforcement layer (303) is carbon fiber reinforced polyimide.

7. The multi-tooth injection nut according to claim 1, characterized in that: The material of the chemical resistant layer (304) is polytetrafluoroethylene.

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