Insert nut
By designing an insert nut with an annular cover plate and injection molding hole, the complex operation of injection molding plastic raw materials in the prior art is solved, and a simple and convenient injection molding process is realized.
Patent Information
- Application Number
- CN202421439198.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-21
AI Technical Summary
When injection molding plastic raw materials, existing insert nuts need to use complex molds, resulting in complex processes and operations, which are relatively limited.
An insert nut is designed, which includes a nut body, a threaded hole in the center of the nut body, annular convex teeth, annular cover plate and an injection molded hole. The outer diameter of the cover plate is larger than the outer diameter of the convex teeth, and there are convex spikes on the inside to facilitate the fixed connection of the nut and the plastic part.
Through this design, the nut can be directly loaded into the mounting hole of the plastic part, the cover plate cover installation hole, and the plastic raw material is directly injected through the injection molding hole on the cover plate, which is simple and convenient to operate.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to an insert nut. Background Art
[0002] The insert nut is embedded or pressed into the mounting hole of the plastic part to achieve an interference fit; some also inject plastic raw materials into the mounting hole to implant the insert nut into the plastic.
[0003] In the above process of plastic raw material injection molding, molds are usually required to cooperate with injection molding machines for operation. Figure 1 As shown in the figure, plastic part 01; mounting hole 02; nut 03; mold 04; ejector pin 05; injection port 06.
[0004] If the operation is performed using a mold, the process and structure will be complicated and the operation will be greatly restricted. Utility Model Content
[0005] In view of the problems pointed out in the background technology, the utility model provides an insert nut to facilitate the injection molding of plastic raw materials into the mounting hole on the plastic part.
[0006] The technical solution of the utility model is achieved in this way:
[0007] An insert nut comprises a nut body, a threaded hole is arranged at the center of the nut body, an annular convex tooth is arranged on the outer side wall of one end of the nut body, an annular cover plate is arranged at one end of the nut body, and an injection hole is arranged on the cover plate.
[0008] The utility model is further configured such that the outer diameter of the cover plate is greater than the outer diameter of the annular convex teeth.
[0009] The utility model is further configured that the inner side surface of the cover plate is provided with protruding thorns.
[0010] The utility model is further configured that the nut body is a cylindrical structure.
[0011] The utility model is further configured to further include an annular blocking sleeve, and another section of the nut body is threadedly connected to the blocking sleeve.
[0012] The utility model is further configured that a blocking plate is provided at one end of the blocking sleeve, and a through hole corresponding to the threaded hole is provided on the blocking plate.
[0013] The utility model is further configured that the blocking plate is a hexagonal structure.
[0014] By adopting the above technical solution, the beneficial effects of the utility model are as follows:
[0015] The insert nut provided by the utility model, when in use, the nut body is installed in the mounting hole on the plastic part, the diameter of the cover plate is larger than the diameter of the mounting hole, so that the cover plate can cover the mounting hole, and the plastic raw material can be directly injected into the mounting hole through the injection hole on the cover plate, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 Schematic diagram of the structure of using a mold to inject molding the mounting holes on a plastic part.
[0018] Figure 2 It is a structural schematic diagram of the utility model.
[0019] Figure 3 The utility model is shown in FIG. Figure 1 .
[0020] Figure 4 It is a top view of the utility model.
[0021] Figure 5 It is the AA cross-sectional view of the present utility model.
[0022] Figure 6 It is the BB sectional view of the present utility model.
[0023] Figure 7 The utility model is shown in FIG. Figure 2 .
[0024] Figure 8 The utility model is shown in FIG. Figure 3 .
[0025] Description of the reference numerals in the accompanying drawings: nut body 1 , threaded hole 11 , convex teeth 12 , cover plate 13 , injection hole 14 , convex thorns 15 , blocking sleeve 2 , blocking plate 21 , through hole 22 . DETAILED DESCRIPTION
[0026] 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 of 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.
[0027] For reference Figure 1-8 The utility model is described as follows:
[0028] Embodiment 1: An insert nut comprises a nut body 1 . The nut body 1 is a cylindrical structure. A threaded hole 11 is provided at the center of the nut body 1 . An annular convex tooth 12 is provided on the outer side wall of one end of the nut body 1 .
[0029] The above is the prior art, and the following is the improved technical solution of this application:
[0030] A circular cover plate 13 is provided at one end of the nut body 1. The outer diameter of the cover plate 13 is larger than the outer diameter of the annular convex tooth 12. An injection hole 14 is provided on the cover plate 13. At least two injection holes 14 are provided. A protruding burr 15 is provided on the inner side surface of the cover plate 13. The nut body 1 is inserted into the mounting hole on the plastic part. The outer diameter of the cover plate 13 is larger than the diameter of the mounting hole. In this way, the cover plate 13 can completely cover the mounting hole and force the burr 15 to penetrate into the plastic part, so that the nut body 1 is fixedly connected to the plastic part with the help of the cover plate 13 and combined into one.
[0031] When the mounting hole on the plastic part is a blind hole, the cover plate 13 covers the open end of the mounting hole to form a closed injection molding space.
[0032] When the mounting hole on the plastic part penetrates the plastic part, the following blocking sleeve 2 needs to be used to block the mounting hole.
[0033] The annular plugging sleeve 2 is installed from the other end of the mounting hole when the nut body is installed from one end of the mounting hole. The other end of the nut body 1 is threadedly connected to the plugging sleeve 2. The inner wall of the plugging sleeve 2 is provided with an internal thread, and the outer wall of the other end of the nut body 1 is provided with a corresponding external thread. A plugging plate 21 is provided at one end of the plugging sleeve 2. The plugging plate 21 is a hexagonal structure. The outer diameter of the plugging plate 21 is larger than the diameter of the mounting hole. The plugging plate 21 is provided with a through hole 22 corresponding to the threaded hole 11. The diameter of the through hole 22 is equal to the diameter of the threaded hole 11, which is equivalent to the plugging plate 21 closing the other end of the mounting hole. In this way, the cover plate 13 and the plugging plate 21 close the two ends of the mounting hole to form a closed injection molding space.
[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. An insert nut, comprising a nut body (1), a threaded hole (11) is provided at the center of the nut body (1), and an annular convex tooth (12) is provided on the outer side wall of one end of the nut body (1), characterized in that: An annular cover plate (13) is provided at one end of the nut body (1), and an injection hole (14) is provided on the cover plate (13).
2. An insert nut according to claim 1, characterized in that: The outer diameter of the cover plate (13) is greater than the outer diameter of the annular protruding tooth (12).
3. The insert nut according to claim 1, characterized in that: The inner side surface of the cover plate (13) is provided with protruding thorns (15).
4. The insert nut according to claim 1, characterized in that: The nut body (1) is a cylindrical structure.
5. The insert nut according to claim 1, characterized in that: It also comprises an annular sealing sleeve (2), and another section of the nut body (1) is threadedly connected to the sealing sleeve (2).
6. An insert nut according to claim 5, characterized in that: A blocking plate (21) is provided at one end of the blocking sleeve (2), and a through hole (22) corresponding to the threaded hole (11) is provided on the blocking plate (21).
7. An insert nut according to claim 6, characterized in that: The blocking plate (21) is a hexagonal structure.