Anti-breakage automobile axle pin

Abstract

This utility model relates to the field of automotive axle pin technology and discloses an anti-breakage automotive axle pin, including a base, a shaft body fixedly connected to the bottom center of the base, a fixing pin fixedly connected to the bottom end of the shaft body, an output mechanism for guiding lubricating oil on the outer surface of the shaft body, a one-way sealing mechanism for adding lubricating oil inside the base, and a spring mechanism for quick installation of the axle pin inside the fixing pin. This not only automatically and continuously applies lubricating oil between the axle pin and the connected parts, thereby maintaining the lubrication between the axle pin and the connected parts and preventing axle pin breakage, but also facilitates the addition of stored lubricating oil inside the axle pin.

Description

Technical Field

[0001] This utility model relates to the field of automotive axle pin technology, specifically a fracture-resistant automotive axle pin. Background Technology

[0002] A pin is a standardized fastener that can provide both static fixation and relative movement with the connected parts. It is primarily used at the hinge joints of two parts to form a hinge connection. Pins are typically locked with cotter pins, ensuring reliable operation and easy disassembly. Pins are generally installed using either press-fitting or hammering with soft metal. Pins are usually conical, pointed, or pointed small nails made of wood or metal, used to secure, fasten, or fill holes. Pins play a crucial role in the connection of mechanical components. Based on their shape and function, they can be classified as cotter pins, tapered pins, cylindrical pins, and slotted pins. In the automotive industry, pins are essential components used to connect and fix mechanical devices, playing a key role in multiple automotive systems.

[0003] However, existing anti-fracture automotive axle pins typically involve applying lubricating oil to the surface of the pin before inserting it into the part to connect the mechanical components. However, as the axle pin and the connected part move relative to each other, the lubricating oil evaporates and is lost in a short time. This increases the friction between the axle pin and the connected part, leading to increased stress on the axle pin and ultimately causing it to break. Utility Model Content

[0004] This invention provides a fracture-resistant automotive axle pin, which has the beneficial effects of automatically and continuously applying lubricating oil between the axle pin and the connected parts, and conveniently adding stored lubricating oil to the inside of the axle pin, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a fracture-resistant automotive axle pin, as an optional solution of the fracture-resistant automotive axle pin of this utility model, wherein: it includes a base, a shaft is fixedly connected to the bottom center of the base, a fixing pin is fixedly connected to the bottom end of the shaft, an output mechanism for guiding lubricating oil is provided on the outer surface of the shaft, a one-way sealing mechanism for adding lubricating oil is provided inside the base, and a spring mechanism for quick installation of the axle pin is provided inside the fixing pin.

[0006] Preferably, the output mechanism includes a spiral guide groove formed on the outer surface of the shaft body, ball grooves are staggered on both sides of the shaft body, the ball grooves are all disposed inside the guide groove, the ball grooves are all disposed inside the ball grooves, and a first spring is disposed between the steel ball and the shaft body.

[0007] Preferably, the one-way sealing mechanism includes a filling port fixedly installed inside the base, a sealing bead is provided inside the filling port, the diameter of the sealing bead is larger than that of the filling port, a conical spring is provided at the bottom of the sealing bead, a filter plate is provided at the bottom of the conical spring, the filter plate is fixedly connected to the filling port, and the filling port is connected to the shaft through an input port.

[0008] Preferably, the elastic mechanism includes two sliding plates slidably mounted inside the fixing pin, a second spring is provided between the two sliding plates, and a buckle is fixedly connected to the side of each of the two sliding plates away from the sliding plate. The ends of the two buckles away from the sliding plates pass through the fixing pin and extend to the outside of the fixing pin.

[0009] Preferably, a plurality of trapezoidal structural members are uniformly fixedly connected to the inner wall of the shaft.

[0010] Preferably, the base is provided with a rubber cover on top, and the bottom of the rubber cover is embedded inside the base.

[0011] This utility model has the following beneficial effects:

[0012] 1. Through the combined action of the base, shaft, fixing pin and output mechanism, while the shaft pin and the connected part move relative to each other, the lubricating oil inside the shaft body is continuously and in small amounts delivered to the shaft pin and the connected part, reducing the friction between the shaft pin and the connected part and preventing the shaft pin from breaking due to excessive stress.

[0013] 2. Through the combined action of the base, shaft, fixing pin and one-way sealing mechanism, lubricating oil can be injected into the shaft pin without removing it when the lubricating oil inside the shaft pin is consumed, which improves the convenience of adding lubricating oil. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a side sectional view of the present invention.

[0016] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0018] Figure 5 This is a schematic diagram of the one-way sealing mechanism of this utility model.

[0019] In the diagram: 1. Base; 2. Shaft; 3. Fixing pin; 4. Output mechanism; 41. Guide groove; 42. Ball groove; 43. Steel ball; 44. First spring; 5. One-way sealing mechanism; 51. Filling port; 52. Sealing bead; 53. Conical spring; 54. Filter plate; 55. Inlet; 6. Elastic mechanism; 61. Sliding plate; 62. Second spring; 63. Buckle; 7. Trapezoidal structural component; 8. Rubber cover. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] This embodiment aims to facilitate a solution to the problem of how to continuously supply lubricating oil between the shaft 2 and the connected parts to ensure long-term lubrication between them. Please refer to [link to relevant documentation]. Figures 1-3 A fracture-resistant automotive axle pin includes a base 1, a shaft 2 fixedly connected to the bottom center of the base 1, the shaft 2 being hollow to store a small amount of lubricating oil, a fixing pin 3 fixedly connected to the bottom end of the shaft 2, an output mechanism 4 for guiding lubricating oil on the outer surface of the shaft 2, the output mechanism 4 for delivering a small amount of lubricating oil stored inside the shaft 2 to the connection between the shaft 2 and the connected component, a one-way sealing mechanism 5 for adding lubricating oil inside the base 1, allowing manual injection of lubricating oil into the shaft 2 through a lubricating oil filling gun when the lubricating oil inside the shaft 2 is depleted, to maintain the presence of lubricating oil inside the shaft 2, and a spring mechanism 6 for quick installation of the axle pin inside the fixing pin 3, enabling quick installation between the axle pin and the connected component.

[0023] The output mechanism 4 includes a spiral guide groove 41 formed on the outer surface of the shaft 2. The spiral guide groove 41 can store a small amount of lubricating oil and also forms a flow channel for lubricating oil after the shaft 2 is inserted into the connected component. This allows the lubricating oil to be evenly coated on the interior of the connection between the connected component and the shaft pin when relative movement occurs between them. Ball grooves 42 are staggered on both sides of the shaft 2. The staggered arrangement of the ball grooves 42 avoids compromising the structural strength of the shaft 2. The ball grooves 42 are all located inside the guide groove 41, and each ball groove 42 contains a steel... The ball 43 and the ball groove 42 not only have a diameter smaller than the ball 43 near the outer end, which can limit the movement of the ball 43, but also have several capillary conveying channels evenly opened near the ball 43. When there is relative movement between the connected part and the shaft 2, the ball 43 can be driven to rotate. While the ball 43 is rotating, the lubricating oil adhering inside the ball 43 is carried to the outside of the shaft 2 and coated onto the connection between the shaft 2 and the connected part. A first spring 44 is provided between the ball 43 and the shaft 2, which can push the ball 43 so that the ball 43 and the connected part are in contact.

[0024] In this embodiment: after the shaft 2 is inserted into the inside of the connected part, the elastic force of the first spring 44 pushes the steel ball 43, so that the steel ball 43 fits against the connected part. When the connected part and the shaft 2 rotate relative to each other, the connected part drives the steel ball 43, so that the steel ball 43 rotates inside the ball groove 42. While rotating, the steel ball 43 continuously adheres to the lubricating oil and coats the lubricating oil at the connection between the shaft 2 and the connected part, reducing the friction between the shaft 2 and the connected part.

[0025] Example 2

[0026] This embodiment aims to facilitate the solution of how to apply lubricating oil to the shaft pin and the connected parts without disassembling the shaft pin. This embodiment is an improvement on Embodiment 1. For details, please refer to [link to Embodiment 1]. Figures 1-5 The one-way sealing mechanism 5 includes a filling port 51 fixedly installed inside the base 1. A sealing bead 52 is provided inside the filling port 51. The diameter of the sealing bead 52 is larger than that of the filling port 51. A conical spring 53 is provided at the bottom of the sealing bead 52. The conical spring 53 can always apply an upward force to the sealing bead 52, so that the sealing bead 52 is tightly fitted with the top of the filling port 51, thereby achieving the purpose of one-way sealing of the filling port 51. A filter plate 54 is provided at the bottom of the conical spring 53, which can support the conical spring 53. The filter plate 54 is fixedly connected to the filling port 51. The filling port 51 is connected to the shaft body 2 through the inlet 55, so that the lubricating oil can enter the interior of the shaft body 2 for storage through the filling port 51.

[0027] The elastic mechanism 6 includes two sliding plates 61 slidably mounted inside the fixed pin 3. A second spring 62 is provided between the two sliding plates 61. Each of the two sliding plates 61 is fixedly connected to a buckle 63 on the side away from the sliding plate 61. The second spring 62 can apply an outward pushing force to the sliding plates 61 and the buckles 63 on both sides. The ends of the two buckles 63 away from the sliding plates 61 pass through the fixed pin 3 and extend to the outside of the fixed pin 3. The end of the buckle 63 on the outside of the fixed pin 3 is set as an inclined surface. The buckle 63 is set so that when the shaft 2 is inserted into the connected part, the connected part squeezes the buckle 63 through the inclined surface of the buckle 63, so that the buckle 63 enters the interior of the fixed pin 3. After the fixed pin 3 passes through the connected part, the second spring 62 pushes the sliding plates 61 and the buckles 63 on both sides, so that the buckles 63 pop out to the outside of the fixed pin 3, and then the buckles 63 cooperate with the base 1 to install the shaft pin.

[0028] Several trapezoidal structural members 7 are uniformly fixedly connected to the inner wall of the shaft 2. The trapezoidal structural members 7 not only enhance the stability of the structure, but also disperse local stress.

[0029] A rubber cap 8 is provided on the top of the base 1. The bottom of the rubber cap 8 is embedded inside the base 1, which can seal the filling port 51 and prevent dust from entering the filling port 51.

[0030] In this embodiment: the rubber cap 8 can be removed, and then lubricating oil can be injected into the filling port 51 by the lubricating oil filling gun. Due to the compression, the lubricating oil flows into the filling port 51 and pushes the sealing bead 52, so that a gap is created between the sealing bead 52 and the filling port 51. The lubricating oil then flows into the filling port 51 through the gap. The lubricating oil inside the filling port 51 continues to flow into the shaft body 2 for storage through the filter plate 54 and the inlet 55. When the lubricating oil filling stops, the external force on the sealing bead 52 disappears, and the conical spring 53 elastically recovers and pushes the sealing bead 52 to move to the top of the filling port 51 to reset, thereby sealing the filling port 51.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A break-resistant automotive axle pin comprising a base (1), characterized in that: A shaft (2) is fixedly connected to the bottom center of the base (1), and a fixing pin (3) is fixedly connected to the bottom end of the shaft (2). An output mechanism (4) for guiding lubricating oil is provided on the outer surface of the shaft (2). A one-way sealing mechanism (5) for adding lubricating oil is provided inside the base (1). A spring mechanism (6) for quick installation of the shaft pin is provided inside the fixing pin (3).

2. A break-resistant axle pin for a vehicle as defined in claim 1, wherein: The output mechanism (4) includes a spiral guide groove (41) opened on the outer surface of the shaft (2). Ball grooves (42) are staggered on both sides of the shaft (2). The ball grooves (42) are all located inside the guide groove (41). Steel balls (43) are arranged inside the ball grooves (42). A first spring (44) is arranged between the steel balls (43) and the shaft (2).

3. The break-resistant automotive axle pin of claim 1, wherein: The one-way sealing mechanism (5) includes a filling port (51) fixedly installed inside the base (1). A sealing bead (52) is provided inside the filling port (51). The diameter of the sealing bead (52) is larger than that of the filling port (51). A conical spring (53) is provided at the bottom of the sealing bead (52). A filter plate (54) is provided at the bottom of the conical spring (53). The filter plate (54) is fixedly connected to the filling port (51). The filling port (51) is connected to the shaft (2) through an input port (55).

4. The break-resistant automotive axle pin of claim 1, wherein: The elastic mechanism (6) includes two sliding plates (61) slidably mounted inside the fixing pin (3), a second spring (62) is provided between the two sliding plates (61), and a buckle (63) is fixedly connected to the side of each sliding plate (61) away from the sliding plate (61). The ends of the two buckles (63) away from the sliding plate (61) pass through the fixing pin (3) and extend to the outside of the fixing pin (3).

5. The break-resistant automotive axle pin of claim 1, wherein: Several trapezoidal structural members (7) are uniformly fixedly connected to the inner wall of the shaft (2).

6. A break-resistant automotive axle pin as defined in claim 1, wherein: The base (1) is provided with a rubber cover (8) on its top, and the bottom of the rubber cover (8) is embedded inside the base (1).

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