Tail plug rolling groove fixed type vibrating needle

Abstract

The utility model belongs to the technical field of electric connectors, and particularly relates to a tail plug rolling groove fixed type vibrating needle which comprises an outer needle tube, an outer needle head, a steel ball, a spring and a fastening plug. A needle hole penetrating through the head and tail ends of the outer needle tube extends from the outer needle tube, and a limiting step is arranged in the needle hole close to the head end of the needle hole; an annular step is formed on the outer periphery of the outer needle head, the outer needle head is arranged in the needle hole and penetrates out of the head end of the outer needle tube, and the annular step abuts against the limiting step. The steel ball, the spring and the fastening plug are sequentially arranged in the needle hole, the steel ball makes contact with the outer needle head, the spring makes contact with the steel ball and the fastening plug, an annular groove is formed in the periphery of the fastening plug, and the periphery, corresponding to the annular groove, of the outer needle tube is concaved inwards to form an inner protruding ring extending into the annular groove. The tail plug rolling groove fixed type vibrating needle has the advantages that raw materials and gold plating processes are saved, and the production cost is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, and particularly relates to a tail plug rolling groove fixed spring pin. Background Art

[0002] Most of the current PogoPin connectors have spring pins that adopt a riveting structure or a double-tube extrusion structure. Both types of spring pins require a lot of raw materials and the gold plating process costs are also high. This is extremely difficult for customers to select, especially during mass production. Utility Model Content

[0003] The utility model aims to provide a tail plug rolling groove fixed spring pin, aiming to solve the technical problems of many raw materials used in the production of spring pins of PogoPin connectors in the prior art and high gold plating process cost.

[0004] To achieve the above-mentioned purpose, the embodiment of the utility model provides a tail plug rolling groove fixed spring needle, comprising an outer needle tube, an outer needle head, a steel ball, a spring and a fastening plug;

[0005] The outer needle tube is provided with a needle hole penetrating through both ends thereof, and a position limiting step is provided in the needle hole near the head end thereof;

[0006] An annular step is formed on the outer peripheral edge of the outer needle head, the outer needle head is arranged in the needle hole and passes through the head end of the outer needle tube, and the annular step abuts against the limiting step to limit the outer needle head from escaping from the head end of the outer needle tube;

[0007] The steel ball, the spring and the fastening plug are arranged in sequence in the needle hole, the steel ball contacts the inner end of the outer needle head, the two ends of the spring contact the steel ball and the fastening plug respectively, the outer periphery of the fastening plug is provided with an annular groove, and the outer periphery of the outer needle tube is concave corresponding to the annular groove to form an inner convex ring extending into the annular groove.

[0008] Optionally, the fastening plug includes a small diameter portion and a large diameter portion arranged along the axial direction, the small diameter portion is in contact with the spring, and the annular groove is provided on the outer periphery of the large diameter portion.

[0009] Optionally, the large diameter portion is tightly matched with the needle hole.

[0010] Optionally, an inclined surface is provided at the inner end of the outer needle located at the needle hole, and the steel ball contacts the inclined surface.

[0011] Optionally, the outer circumference of the outer needle tube is formed into an inner concave annular groove by rolling with external force, so that the inner circumference of the outer needle tube forms the inner convex ring extending into the annular groove.

[0012] The above one or more technical solutions in the tail plug rolling groove fixed spring needle provided by the embodiment of the utility model have at least one of the following technical effects: the outer needle head, steel ball, spring and fastening plug are sequentially installed into the needle hole of the outer needle tube, because the outer periphery of the fastening plug is provided with an annular groove, and the outer periphery of the outer needle tube corresponding to the annular groove is concave to form an inner convex ring extending into the annular groove, so that the annular groove is fixed by avoiding the inner convex ring through the annular groove, thereby forming resistance to the upper and lower parts of the annular groove, and then resisting the fastening plug, so as to ensure that the entire spring needle is fixed and formed. The tail plug rolling groove fixed spring needle of the utility model saves raw materials and gold plating process, greatly reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 A schematic structural diagram of a tail plug rolling groove fixed spring pin provided in an embodiment of the utility model.

[0015] Figure 2 A schematic diagram of the structural decomposition of a tail plug rolling groove fixed spring pin provided in an embodiment of the utility model.

[0016] Figure 3 A cross-sectional view of a tail plug rolling groove fixed spring needle provided in an embodiment of the utility model.

[0017] Among them, the reference numerals in the figure are:

[0018] 10—outer needle tube 11—needle hole 12—limiting step

[0019] 13—inner convex ring 14—annular groove 20—outer needle

[0020] 21—annular step 22—inclined surface 30—steel ball

[0021] 40 - spring 50 - fastening plug 51 - small diameter part

[0022] 52—large diameter portion 521—annular groove. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present invention in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 3The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] In one embodiment of the present invention, Figures 1 to 3 As shown, a tail plug rolling groove fixed spring needle is provided, which includes an outer needle tube 10, an outer needle head 20, a steel ball 30, a spring 40 and a fastening plug 50.

[0028] Furthermore, the outer needle tube 10 is provided with a needle hole 11 penetrating through both ends thereof, and a limiting step 12 is provided in the needle hole 11 near the head end thereof.

[0029] Furthermore, an annular step 21 is formed on the outer periphery of the outer needle 20, and the outer needle 20 is arranged in the needle hole 11 and passes through the head end of the outer needle tube 10. The annular step 21 abuts against the limiting step 12 to limit the outer needle 20 from escaping from the head end of the outer needle tube 10.

[0030] Furthermore, the steel ball 30, the spring 40 and the fastening plug 50 are arranged in sequence in the needle hole 11, the steel ball 30 contacts the inner end of the outer needle head 20, and the two ends of the spring 40 contact the steel ball 30 and the fastening plug 50 respectively. The outer periphery of the fastening plug 50 is provided with an annular groove 521, and the outer periphery of the outer needle tube 10 is concave corresponding to the annular groove 521 to form an inner convex ring 13 extending into the annular groove 521.

[0031] When assembling the tail plug rolling groove fixed spring needle provided by the embodiment of the utility model, the outer needle head 20, the steel ball 30, the spring 40 and the fastening plug 50 are sequentially installed into the needle hole 11 of the outer needle tube 10. Since the outer periphery of the fastening plug 50 is provided with an annular groove 521, and the outer periphery of the outer needle tube 10 is concave corresponding to the annular groove 521 to form an inner convex ring 13 extending into the annular groove 521, the annular groove 521 is fixed by the avoidance of the inner convex ring 13 by the annular groove 521, thereby forming resistance to the upper and lower parts of the annular groove 521, and then the fastening plug 50 is resisted, so as to ensure that the entire spring needle is fixed and formed. Through this fixing method, the tail plug rolling groove fixed spring needle of the utility model saves raw materials and gold plating process, and greatly reduces the production cost.

[0032] In another embodiment of the present invention, Figures 2-3 As shown, the fastening plug 50 includes a small diameter portion 51 and a large diameter portion 52 arranged along the axial direction, the small diameter portion 51 contacts the spring 40, and the annular groove 521 is provided on the outer periphery of the large diameter portion 52. Specifically, when assembling the fastening plug 50, the small diameter portion 51 first enters the pinhole 11, so as to facilitate the initial positioning of entering the pinhole 11, and then the large diameter portion 52 enters the pinhole 11 to complete the final assembly and fixation.

[0033] In another embodiment of the present invention, Figure 3 As shown, the large diameter portion 52 is tightly matched with the needle hole 11. The fastening design can ensure that the connection between the fastening plug 50 and the outer needle tube 10 is more stable and reliable.

[0034] In another embodiment of the present invention, Figures 2-3 As shown, the inner end of the outer needle 20 located at the needle hole 11 is provided with an inclined surface 22, and the steel ball 30 contacts the inclined surface 22. In this way, the contact between the steel ball 30 and the outer needle 20 is more stable, ensuring that the outer needle 20 will not shake left and right.

[0035] In another embodiment of the present invention, Figures 1 to 3As shown, the outer circumference of the outer needle tube 10 is formed into an annular groove 14 by rolling with external force, and then the inner circumference of the outer needle tube 10 forms the inner convex ring 13 extending into the annular groove 521. In specific processing, the processed components are sequentially installed into the needle hole 11 of the outer needle tube 10, and after the height is adjusted by a clamp, the outer circumference of the outer needle hole 11 is deformed and concave to form an annular groove 14 by using the side groove process, and then the needle hole 11 of the outer needle hole 11 is convex to form an inner convex ring 13 extending into and abutting against the annular groove 521 of the fastening plug 50, thereby generating up and down resistance, fixing the annular groove 521, and fixing the elastic needle into shape.

[0036] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tail plug rolling groove fixed spring needle, characterized in that: It includes an outer needle tube, an outer needle, a steel ball, a spring and a fastening plug; The outer needle tube is provided with a needle hole penetrating through both ends thereof, and a position limiting step is provided in the needle hole near the head end thereof; An annular step is formed on the outer peripheral edge of the outer needle head, the outer needle head is arranged in the needle hole and passes through the head end of the outer needle tube, and the annular step abuts against the limiting step to limit the outer needle head from escaping from the head end of the outer needle tube; The steel ball, the spring and the fastening plug are arranged in sequence in the needle hole, the steel ball contacts the inner end of the outer needle head, the two ends of the spring contact the steel ball and the fastening plug respectively, the outer periphery of the fastening plug is provided with an annular groove, and the outer periphery of the outer needle tube is concave corresponding to the annular groove to form an inner convex ring extending into the annular groove.

2. The tail plug rolling groove fixed spring needle according to claim 1, characterized in that: The fastening plug includes a small diameter portion and a large diameter portion arranged in the axial direction, the small diameter portion is in contact with the spring, and the annular groove is provided on the outer periphery of the large diameter portion.

3. The tail plug rolling groove fixed spring needle according to claim 2, characterized in that: The large diameter portion is tightly matched with the pinhole.

4. The tail plug rolling groove fixed spring needle according to claim 1, characterized in that: The inner end of the outer needle head located at the needle hole is provided with an inclined surface, and the steel ball contacts the inclined surface.

5. The tail plug rolling groove fixed spring needle according to any one of claims 1 to 4, characterized in that: The outer circumference of the outer needle tube is formed into an inner concave annular groove by rolling with external force, so that the inner circumference of the outer needle tube forms the inner convex ring extending into the annular groove.

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