Spring pin for vehicle

Abstract

The application relates to the technical field of spring pins, in particular to a spring pin for a vehicle, which comprises a pin body, a spring and an adjusting piece, the pin body is provided with a ball head and a containing cavity, the center of the ball head is provided with a threaded hole; the spring is provided with a deformation end and a converging end, the converging end extends into the containing cavity; one end of the adjusting piece is threadedly connected with the threaded hole, and the other end of the adjusting piece is fixedly connected with the converging end; the adjusting piece is threadedly connected with the spring, and the length of the spring extending out of the containing cavity can be linearly adjusted.

Description

Technical Field

[0001] This application relates to the field of spring pin technology, and more specifically to a spring pin for automobiles. Background Technology

[0002] Spring pins are mechanical components that achieve reliable connections based on elastic deformation, and are widely used in automobiles, machinery, industrial equipment and other fields.

[0003] There is a type of automotive spring pin, such as Figure 5 As shown, the device includes a pin and a spring. The pin has a ball head and a receiving cavity. The spring has a deformable end and a retractable end. The retractable end extends into the receiving cavity, and the deformable end extends out of the cavity opening by a predetermined distance. In use, the automotive spring pin is placed in a specific hole, with the deformable end abutting against the bottom wall of the hole. When the spring is in an undeformed state, the ball head extends out of the hole opening by a predetermined distance. The selective extension and retraction of the pin is achieved through the selective deformation of the spring. However, after long-term use, the spring force will decrease. For example, if the spring force decreases by 10%, replacing the spring is wasteful. If the spring is not replaced, its preload is insufficient. Current practices often involve placing a washer in the hole, but the washer usually has a fixed thickness. When adjusting it, the length of the pin extending out of the hole is stepped and jump-like, rather than linear.

[0004] Therefore, there is a need for a lubricated automotive spring pin that provides a linear adjustment for the spring extension length into the receiving cavity. Summary of the Invention

[0005] The main objective of this application is to provide an automotive spring pin, wherein the automotive spring pin includes a pin body, a spring, and an adjusting member. The pin body has a ball head and a receiving cavity, and the center of the ball head has a threaded hole. The spring has a deformable end and a retractable end, and the retractable end extends into the receiving cavity. One end of the adjusting member is threadedly connected to the threaded hole, and the other end of the adjusting member is fixedly connected to the retractable end. This application, by providing a rotatable adjusting member connected to the spring, has the advantage of linearly adjusting the length of the spring extending out of the receiving cavity compared to the prior art.

[0006] Another objective of this application is to provide a vehicle spring pin, wherein the middle section of the outer side wall of the pin body has a plurality of oil reservoirs, each of which is provided with grease and a lifting plate. The lifting plate is slidably disposed in the oil reservoir. When the adjusting member moves toward the receiving cavity, the lifting plate moves away from the central axis of the receiving cavity and pushes the grease toward the groove opening of the oil reservoir, thus having the advantage of lubrication.

[0007] To achieve at least one of the above-mentioned objectives, this application provides a vehicle spring pin, wherein the vehicle spring pin comprises: A pin body having a ball head and a receiving cavity, wherein the center of the ball head has a threaded hole; A spring having a deformable end and a retractable end, the retractable end extending into the receiving cavity; An adjusting component, one end of which is threadedly connected to the threaded hole, and the other end of which is fixedly connected to the closing end.

[0008] In one or more embodiments of this application, the middle section of the outer side wall of the pin has a plurality of oil reservoirs, each of which is provided with grease and a lifting plate. The lifting plate is slidably disposed in the oil reservoir. When the adjusting member moves toward the accommodating cavity, the lifting plate moves toward the direction away from the central axis of the accommodating cavity and pushes the grease toward the groove opening of the oil reservoir.

[0009] In one or more embodiments of this application, the automotive spring pin further includes a trigger member, the trigger member including a connecting portion and a contact foot portion, the connecting portion being fixedly connected to the retracting end, one end of the contact foot portion being fixedly connected to the connecting portion, the other end of the contact foot portion having a first inclined surface, the end of the lifting plate opposite to the grease having an extension post, the extension post having a second inclined surface, and the first inclined surface and the second inclined surface being in contact.

[0010] In one or more embodiments of this application, the adjusting member has a threaded portion, abutment shoulder, and insertion end. The threaded portion is threadedly connected to the threaded hole. The abutment shoulder is located between the threaded portion and the insertion end. The closing end has a hollow hole. The insertion end is inserted into the hollow hole, and the end of the closing end abuts against the abutment shoulder.

[0011] In one or more embodiments of this application, the threaded portion has a screw hole on the end face opposite to the abutment shoulder.

[0012] In one or more embodiments of this application, the deformable end extends a predetermined distance beyond the opening of the receiving cavity.

[0013] In this embodiment, the automotive spring pin includes a pin body, a spring, and an adjusting member. The pin body has a ball head and a receiving cavity, and the center of the ball head has a threaded hole. The spring has a deformable end and a retractable end, with the retractable end extending into the receiving cavity. One end of the adjusting member is threadedly connected to the threaded hole, and the other end of the adjusting member is fixedly connected to the retractable end. By providing a rotatable adjusting member connected to the spring, this application has the advantage of linearly adjusting the length of the spring extending out of the receiving cavity compared to the prior art. Attached Figure Description

[0014] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein: Figure 1 The figure shows a structural schematic diagram of a vehicle spring pin according to this application; Figure 2 The figure shows an isometric view of a vehicle spring pin according to this application; Figure 3 The diagram shows... Figure 1 A magnified view of a portion at point C; Figure 4 The diagram shows... Figure 1 A magnified view of a portion at point D; Figure 5 The diagram illustrates the structure of a conventional automotive spring pin. Detailed Implementation

[0015] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0016] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0017] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0019] Indicative automotive spring pin, for reference Figures 1 to 4A preferred embodiment of the present invention provides a vehicle spring pin, comprising a pin body 10 and a spring 20.

[0020] Specifically, such as Figure 1 and Figure 2 As shown, the pin 10 has a ball head 101 and a receiving cavity 102, and the spring 20 has a deformable end 201 and a retractable end 202. The retractable end 202 extends into the receiving cavity 102, and the deformable end 201 extends out of the cavity opening of the receiving cavity 102 by a predetermined distance.

[0021] In use, the vehicle spring pin is placed into the predetermined hole, and the end of the deformable end 201 facing away from the retractable end 202 is abutted against the bottom wall of the predetermined hole. When the deformable end 201 is in an undeformed state, the ball head 101 extends a predetermined distance out of the opening of the predetermined hole. When engaging with an external object, the external object comes into contact with the ball head 101, causing the ball head 101 to retract into the predetermined hole until the ball head 101 is directly facing the engaging hole on the external object. Then, under the elastic force of the spring 20, the ball head 101 engages with the engaging hole on the external object.

[0022] However, after long-term use, the elasticity of the deformed end 201 weakens, which reduces the overall preload of the spring 20. That is, only a smaller force is needed to separate the ball head 101 from the snap-fit ​​hole on the foreign object.

[0023] Therefore, in this application, as Figure 3 As shown, the vehicle spring pin also includes an adjusting member 30, and the center of the ball head 101 has a threaded hole; one end of the adjusting member 30 is threadedly connected to the threaded hole, and the other end of the adjusting member 30 is fixedly connected to the closing end 202.

[0024] It should be noted that after long-term use, when the elasticity of the deformed end 201 weakens, maintenance personnel can rotate the adjusting member 30 to move the spring 20 as a whole towards the opening of the receiving cavity 102 by a predetermined distance. This allows the spring 20 to be pressed further into the receiving cavity 102 when the ball head 101 engages with the external locking hole, thus compensating for the preload of the spring 20. Clearly, compared to the prior art where a gasket is placed into the receiving cavity 102, this application has the advantage of linearly adjusting the length of the spring 20 extending out of the receiving cavity 102 by rotating the adjusting member 30, allowing the spring 20 to gradually extend out of the receiving cavity 102 in a linear manner.

[0025] Furthermore, since the pin 10 will rub against the wall of the predetermined hole when it extends and retracts within the predetermined hole, lubrication is provided, such as... Figure 4As shown, the middle section of the outer side wall of the pin 10 has a plurality of oil reservoirs 103, and each of the oil reservoirs 103 is provided with grease 104.

[0026] It should be noted that after the pin 10 reciprocates within the predetermined hole a predetermined number of times, the grease 104 located outside the oil reservoir 103 is consumed, while the grease 104 located inside the oil reservoir 103 is far from the opening of the oil reservoir 103.

[0027] In view of this, such as Figure 4 As shown, the vehicle spring pin also includes a lifting plate 40, which is slidably disposed within the oil reservoir 103.

[0028] It should be noted that when the maintenance personnel screw on the adjusting component 30 and move the spring 20 toward the opening of the accommodating cavity 102, the lifting plate 40 moves away from the central axis of the accommodating cavity 102 and pushes the lubricating grease 104 toward the opening of the oil reservoir 103.

[0029] Specifically, to achieve the desired effect when the adjusting member 30 is turned, the lifting plate 40 pushes the lubricating grease 104 out of the oil reservoir 103, such as... Figure 4 As shown, the vehicle spring pin also includes a trigger 50, which includes a connecting part 501 and a contact part 502. The connecting part 501 is fixedly connected to the closing end 202. One end of the contact part 502 is fixedly connected to the connecting part 501. The other end of the contact part 502 has a first inclined surface 5021. The end of the lifting plate 40 away from the grease 104 has an extension post 401. The extension post 401 has a second inclined surface. The first inclined surface 5021 fits against the second inclined surface.

[0030] Furthermore, to specifically achieve the connection between the adjusting member 30 and the pin 10 and the spring 20 respectively, as follows: Figure 3 As shown, the adjusting member 30 has a threaded portion 301, an abutment shoulder 302, and an insertion end 303. The threaded portion 301 is threadedly connected to the threaded hole. The abutment shoulder is located between the threaded portion 301 and the insertion end 303. The closing end 202 has a hollow hole 2021. The insertion end 303 is inserted into the hollow hole 2021, and the end of the closing end 202 abuts against the abutment shoulder 302.

[0031] Furthermore, to facilitate the screwing of the adjusting member 30, such as... Figure 3 As shown, the threaded portion 301 has a screw hole 3011 on the end face opposite to the abutment shoulder 302.

[0032] In summary, the automotive spring pin described in the embodiments of this application is explained, which provides advantages such as linear adjustment of the spring extension length into the receiving cavity and lubrication.

[0033] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A type of automotive spring pin, characterized in that: The automotive spring pin includes A pin body having a ball head and a receiving cavity, wherein the center of the ball head has a threaded hole; A spring having a deformable end and a retractable end, the retractable end extending into the receiving cavity; An adjusting component, one end of which is threadedly connected to the threaded hole, and the other end of which is fixedly connected to the closing end.

2. The automotive spring pin according to claim 1, characterized in that: The middle section of the outer side wall of the pin has several oil reservoirs. Each oil reservoir is provided with grease and a lifting plate. The lifting plate is slidably disposed in the oil reservoir. When the adjusting member moves toward the accommodating cavity, the lifting plate moves away from the central axis of the accommodating cavity and pushes the grease toward the opening of the oil reservoir.

3. The automotive spring pin according to claim 2, characterized in that: The vehicle spring pin also includes a trigger, which includes a connecting part and a contact foot. The connecting part is fixedly connected to the closing end. One end of the contact foot is fixedly connected to the connecting part. The other end of the contact foot has a first inclined surface. The end of the lifting plate away from the grease has an extension post. The extension post has a second inclined surface. The first inclined surface and the second inclined surface are in contact.

4. The automotive spring pin according to claim 1, characterized in that: The adjusting member has a threaded portion, abutment shoulder, and insertion end. The threaded portion is threadedly connected to the threaded hole. The abutment shoulder is located between the threaded portion and the insertion end. The closing end has a hollow hole. The insertion end is inserted into the hollow hole, and the end of the closing end abuts against the abutment shoulder.

5. The automotive spring pin according to claim 4, characterized in that: The threaded portion has a screw hole on the end face opposite to the abutment shoulder.

6. The automotive spring pin according to claim 1, characterized in that: The deformable end extends a predetermined distance beyond the opening of the accommodating cavity.

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