Spring pin needle capable of preventing sound during shifting

Abstract

The utility model relates to the technical field of spring pin needles, and discloses a spring pin needle capable of preventing sound during shifting, which comprises a pin cylinder, a spring arranged in the pin cylinder and a steel ball arranged on the inner side of an opening at one end of the pin cylinder, a silencing column is arranged between the steel ball and the spring, and a silencing hole is arranged at one end of the pin cylinder away from the steel ball. According to the device, the steel balls and the springs are blocked through the arranged silencing columns, direct contact between the steel balls and the springs is avoided, the strength of sound generated by friction in the working state is reduced, meanwhile, the generated sound can be further reduced in cooperation with the silencing holes, the perception of a user on the sound is further reduced, and the user experience is improved. And the requirement of a user on noise reduction is met.

Description

Technical Field

[0001] The utility model relates to the technical field of spring pins, in particular to a spring pin capable of preventing noise from being generated by toggling. Background Art

[0002] Spring pins are mainly used in electronic products to replace traditional shafts. The purpose of precision shafts can be achieved by simply combining a shaft rod with a spring pin. No matter how compact the design is, it can ensure a good rotation life. Under the action of the internal spring, the plastic shaft rod presses and moves the steel ball to provide a mechanical feel of rotation, which is simpler than the traditional shaft product structure. Conventional spring pins are composed of three parts: steel balls, pin barrels, and springs. The steel balls do not need to be electroplated, and the outer surface of the pin barrel is mostly nickel-plated to achieve wear resistance and oxidation resistance. This type of product is generally used in products with mechanical rotation on the upper and lower covers such as TWS charging boxes.

[0003] In the application requirements of TWS charging cases, since the plastic shells are mostly made of PC material, this material is impact-resistant, fatigue-resistant, and has low anti-creep properties at high temperatures. When the spring pin is placed in the plastic hole reserved in the plastic shell, if the plastic hole and the spring pin are isolated by a silicone sleeve, when the upper and lower covers are flipped and turned, the spring pin provides a mechanical feel of the shaft while the buffering effect of the silicone sleeve will greatly reduce the impact on the PC plastic shell. At this time, it provides a mechanical texture without being affected by the crisp sound. However, due to product space limitations, some charging cases cannot be assembled with silicone sleeves, and the unbuffered turning time is amplified by the charging case, which in turn affects the consumer experience.

[0004] Therefore, we propose a spring pin that can be turned to prevent noise to solve the technical problems mentioned above. Utility Model Content

[0005] In view of this, the main purpose of the present invention is to provide a spring pin that can be turned to prevent noise, and its function is to solve the above-mentioned problem.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: including a pin barrel, a spring arranged inside the pin barrel and a steel ball arranged inside an opening at one end of the pin barrel, a silencer column is arranged between the steel ball and the spring, and a silencer hole is opened at the end of the pin barrel away from the steel ball.

[0007] As a preferred solution, both ends of the silencer column are respectively provided with an inner concave cone hole and an outer convex tail column.

[0008] As a preferred solution, the silencer column slidably contacts the steel ball through the concave tapered hole.

[0009] As a preferred solution, the silencer column is adapted to be snap-fitted to the spring via an outwardly protruding tail column.

[0010] As a preferred solution, the diameter of the sound absorption hole is smaller than that of the spring.

[0011] As a preferred solution, the sound absorption column is made of plastic material.

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, the main ones are:

[0013] The device blocks the steel ball and the spring through the arranged sound absorption column, avoiding direct contact between the steel ball and the spring, reducing the intensity of the sound generated by friction during the working state. At the same time, the cooperation with the sound absorption hole can further reduce the generated sound, further reducing the user's perception of the sound and meeting the user's demand for sound absorption.

[0014] To more clearly illustrate the structural features and functions of the utility model, the following combines the drawings with specific embodiments to elaborate on the utility model in detail. Description of the Drawings

[0015] Figure 1 is a schematic cross-sectional structure diagram of a spring pin in a free state in the prior art;

[0016] Figure 2 is a schematic cross-sectional structure diagram of a spring pin in a working state when being toggled in the prior art;

[0017] Figure 3 is a schematic vertical structure diagram of an embodiment of the utility model;

[0018] Figure 4 is a schematic top view structure diagram of an embodiment of the utility model;

[0019] Figure 5 is a schematic side view of an embodiment of the utility model;

[0020] Figure 6 is a schematic cross-sectional structure diagram of the device in a free state;

[0021] Figure 7 is a schematic cross-sectional structure diagram of the device in a working state when being toggled.

[0022] Description of the reference numerals: 1. Pin cylinder; 2. Steel ball; 3. Spring; 4. Sound absorption column; 5. Sound absorption hole. Detailed Embodiments

[0023] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further elaborates on the utility model in combination with the drawings and implementation examples. It should be understood that the specific implementation examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] See also Figures 3 to 7 The embodiment of the utility model provides a spring pin for preventing noise from being toggled, comprising a pin barrel 1, a spring 3 arranged inside the pin barrel 1, and a steel ball 2 arranged inside an opening at one end of the pin barrel 1. The surface of the pin barrel 1 is nickel-plated by an electroplating process, so that the functions of wear resistance and oxidation resistance can be achieved. The steel ball 2 is arranged inside the pin barrel 1, and one end of the steel ball 2 is exposed and passes through the outside of one end of the pin barrel 1. The pin barrel 1 is provided with a rivet opening to prevent the steel ball 2 from being separated from the pin barrel 1. One end of the spring 3 is in contact with one end of the pin barrel 1, and a noise-eliminating spring is arranged between the steel ball 2 and the spring 3. The sound column 4 and the silencer column 4 are made of plastic material. Therefore, when the steel ball 2 and the silencer column 4 are in sliding contact, the friction generated is based on the friction between metal and plastic, and the sound is small. A silencer hole 5 is provided at the end of the pin barrel 1 away from the steel ball 2. The silencer hole 5 is provided at the end where the spring 3 and the pin barrel 1 are in conflict. An inner concave cone hole and an outer convex tail column are respectively provided at both ends of the silencer column 4. The silencer column 4 is in sliding conflict with the steel ball 2 through the inner concave cone hole, and the silencer column 4 is adapted and clamped with the spring 3 through the outer convex tail column. The diameter of the silencer hole 5 is smaller than the diameter of the spring 3.

[0026] First of all, it should be explained that the structure of the traditional spring pin is generally provided with a steel ball, a pin barrel and a spring. When the steel ball is moved, the friction between the steel ball and the spring is large, and the friction between metals will not only increase the loss rate of the steel ball and the spring, but also make a loud noise;

[0027] The device can avoid direct contact between the steel ball 2 and the spring 3 by setting a silencer column 4 made of plastic between the steel ball and the spring, and limit the steel ball 2 by the concave cone hole and the convex tail column of the silencer column 4, so that the steel ball 2 is confined inside the concave cone hole set by the silencer column 4. When the steel ball 2 rotates, the loss caused by the friction between the steel ball 2 and the silencer column 4 is greatly reduced compared with the loss caused by the friction between metal and metal in the prior art, thereby greatly improving the service life of the steel ball 2. At the same time, the friction between the steel ball 2 and the silencer column 4 can reduce the sound caused by the friction between metal and metal. Thanks to the opening of the silencer hole 5, the sound generated by the friction between the steel ball 2 and the silencer column 4 is further reduced. The above method can greatly reduce the user's perception of sound, reduce the sound generated when dialing, and achieve the function of anti-sound when dialing, thereby improving the user's experience.

[0028] In addition, through the convex tail column provided at the other end of the sound-absorbing column 4, the sound-absorbing column 4 can be firmly seated on the spring 3, reducing the situation where the spring 3 shakes and collides with the inner wall of the pin cylinder 1.

[0029] In summary, through the provided sound-absorbing column 4, the steel ball 2 and the spring 3 are blocked, preventing the steel ball 2 from directly contacting the spring 3, reducing the intensity of the sound generated by friction during the working state. At the same time, in cooperation with the sound-absorbing holes 5, the generated sound can be further reduced.

[0030] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A spring pin for preventing noise by toggling, comprising a pin barrel (1), a spring (3) arranged inside the pin barrel (1), and a steel ball (2) arranged inside an opening at one end of the pin barrel (1), characterized in that: A silencer column (4) is arranged between the steel ball (2) and the spring (3), and a silencer hole (5) is provided at one end of the pin barrel (1) away from the steel ball (2).

2. The spring pin for preventing rattling by toggling according to claim 1, characterized in that: Both ends of the silencer column (4) are respectively provided with an inner concave cone hole and an outer convex tail column.

3. A toggle anti-rattle spring pin according to claim 2, characterized in that: The silencer column (4) is in sliding contact with the steel ball (2) through the concave tapered hole.

4. A toggle anti-ringing spring pin according to claim 2, characterized in that: The silencer column (4) is adapted and clamped with the spring (3) via an outwardly protruding tail column.

5. A toggle anti-rattle spring pin according to claim 1, characterized in that: The diameter of the muffler hole (5) is smaller than the diameter of the spring (3).

6. A toggle anti-rattle spring pin according to claim 1, characterized in that: The silencer column (4) is made of plastic material.

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