Universal joint pin for vehicle

Abstract

A universal joint pin for a vehicle structurally comprises a universal joint pin body, connectors are rotationally arranged at the four ends of the universal joint pin body respectively, a lubricating positioning seat is arranged in the center of the front end face of the universal joint pin body, a lubricating liquid flow guide notch is formed between the lubricating positioning seat and the four connectors, and a pressing diaphragm and a liquid injection opening are arranged on the front end face of the lubricating positioning seat. A lubricating positioning assembly is arranged on the vehicle cross shaft, quantitative liquid injection can be carried out, the dripping leakage phenomenon is prevented, before use, lubricating liquid is injected into the liquid storage frame through the liquid injection opening, a maintainer presses the pressing diaphragm one time or multiple times according to the use condition of the cross shaft, the pressing diaphragm drives the pressing piece, and the lubricating liquid is injected into the liquid storage frame through the liquid injection opening. When the liquid conveying pipeline is closed, the closing piece on the pressing piece relieves closing of the liquid conveying pipeline, meanwhile, the liquid storage frame is subjected to the pressure effect of the pressing diaphragm, lubricating liquid in the liquid storage frame flows into the liquid conveying pipeline and is finally sprayed into the lubricating liquid flow guide notch through the nozzle, and the lubricating liquid enters a connecting gap between the end of the cross shaft body and the connector along the lubricating liquid flow guide notch to be lubricated and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle cross shafts, in particular to a vehicle cross shaft. Background Art

[0002] An automotive cross shaft, also known as a cross joint or universal joint, is a component that enables variable-angle power transmission. It is used in locations where the direction of the drive axis needs to be changed. It serves as the "joint" of the universal joint in the vehicle's drive system. Existing maintenance methods for automotive cross shafts involve directly injecting lubricant into the rotating gap, which can easily lead to over-injection and leakage. Utility Model Content

[0003] The purpose of the utility model is to provide a cross shaft for a vehicle in order to solve the above-mentioned problem.

[0004] The technical solution of the present utility model is achieved as follows:

[0005] The utility model provides a cross shaft for a vehicle, which comprises a cross shaft body, the four ends of the cross shaft body are rotatably provided with connecting heads, a lubrication positioning seat is provided at the center of the front end surface of the cross shaft body, a lubricating liquid guide groove is provided between the lubrication positioning seat and the four connecting heads, a pressing diaphragm and a liquid injection port are provided at the front end surface of the lubrication positioning seat, a positioning chamber is provided inside the lubrication positioning seat, a liquid storage frame connected to the pressing diaphragm is provided at the center of the positioning chamber, a liquid injection pipe connected to the liquid injection port is provided on the liquid storage frame, nozzles fitted into corresponding lubricating liquid guide grooves are provided on all four sides of the lubrication positioning seat, a liquid infusion pipe is obliquely provided between the nozzle and the liquid storage frame, a pressing sheet corresponding to the liquid infusion pipe is provided on the bottom surface of the pressing diaphragm, and a closing sheet that fits and closes the inlet of the liquid infusion pipe is provided at the end of the pressing sheet.

[0006] In one embodiment, the lubrication locating seat and the cross shaft body are an integrated structure.

[0007] In one embodiment, the cross shaft body is made of alloy steel.

[0008] In one embodiment, a sealing plug is embedded in the liquid injection port.

[0009] In one embodiment, the pressing piece is arranged at an angle.

[0010] In one embodiment, the top end of the pressing membrane has a curvature.

[0011] In one embodiment, the pressing membrane is circular or square.

[0012] In one embodiment, a connection notch is provided at the end of the connector.

[0013] The advantages or beneficial effects of the above technical solution include at least:

[0014] The utility model discloses a cross shaft for a vehicle, which is equipped with a lubricating positioning component and can be quantitatively injected to prevent dripping. Before use, the lubricating liquid is injected into the liquid storage frame through the liquid injection port. The maintenance personnel press the pressing diaphragm once or multiple times according to the use of the cross shaft, so that the pressing diaphragm drives the pressing piece, and the sealing piece on the pressing piece releases the sealing of the infusion pipeline. At the same time, the liquid storage frame is acted upon by the pressure of the pressing diaphragm, and the lubricating liquid in the liquid storage frame flows into the infusion pipeline and is finally sprayed into the lubricating liquid guide groove by the nozzle. The lubricating liquid flows along the lubricating liquid guide groove into the connection gap between the end of the cross shaft body and the connector to perform lubrication maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention, and are included in and constitute a part of this specification.

[0016] Figure 1 This is a schematic structural diagram of a cross shaft for a vehicle according to the present invention;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the lubrication positioning seat;

[0018] Figure 3 Schematic diagram of the connection structure between the infusion pipe and the sealing piece;

[0019] Figure 4 Schematic diagram of the cross-sectional structure of the pressed diaphragm. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in more detail with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be understood that the term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0023] It should be noted that the modifications of "one" and "several" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0024] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0025] Example 1

[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The present invention provides a technical solution for a cross shaft for a vehicle: its structure includes a cross shaft body 1, and the four ends of the cross shaft body 1 are rotatably provided with connecting heads 2, a lubricating positioning seat 3 is provided at the center of the front end surface of the cross shaft body 1, a lubricating liquid guide groove 4 is provided between the lubricating positioning seat 3 and the four connecting heads 2, a pressing diaphragm 5 and a liquid injection port 6 are provided at the front end surface of the lubricating positioning seat 3, a positioning chamber 7 is provided inside the lubricating positioning seat 3, a liquid storage frame 8 connected to the pressing diaphragm 5 is provided at the center of the positioning chamber 7, and a liquid injection pipe 9 connected to the liquid injection port 6 is provided on the liquid storage frame 8. The lubricating positioning seat 3 is provided with nozzles 10 fitted into the corresponding lubricating liquid guide groove 4 around, and a liquid infusion pipe 11 is obliquely provided between the nozzle 10 and the liquid storage frame 8. The bottom surface of the pressing diaphragm 5 is provided with a pressing piece 12 corresponding to the liquid infusion pipe 11, and the end of the pressing piece 12 is provided with a sealing piece 13 that fits and seals the inlet of the liquid infusion pipe 11.

[0027] In order to improve the firmness of the connection, the lubrication locating seat 3 and the cross shaft body 1 are an integrated structure.

[0028] In order to improve the structural strength, the cross shaft body 1 is made of alloy steel.

[0029] In order to prevent leakage, a sealing plug is embedded in the liquid injection port 6.

[0030] In order to drive the closing piece 13 to move downward, the pressing piece 12 is arranged tilted.

[0031] In order to facilitate pressing, the top of the pressing membrane 5 has a curvature.

[0032] For ease of operation, the pressing membrane 5 is a circular structure.

[0033] In order to facilitate connection, a connection notch is provided at the end of the connector 2 .

[0034] The vehicle cross shaft is equipped with a lubricating positioning component, which can be quantitatively injected to prevent dripping. Before use, the lubricating liquid is injected into the liquid storage frame 8 through the liquid injection port 6. The maintenance personnel press the pressing diaphragm 5 once or multiple times according to the use of the cross shaft, so that the pressing diaphragm 5 drives the pressing piece 12, and the closing piece 13 on the pressing piece 12 releases the seal on the infusion pipe 11. At the same time, the liquid storage frame 8 is subjected to the pressure of the pressing diaphragm 5, and the lubricating liquid in the liquid storage frame flows into the infusion pipe 11, and is finally sprayed into the lubricating liquid guide groove 4 by the nozzle 10. The lubricating liquid follows the lubricating liquid guide groove 4 into the connection gap between the end of the cross shaft body 1 and the connector 2 for lubrication maintenance.

[0035] Example 2

[0036] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The present invention provides a technical solution for a cross shaft for a vehicle: its structure includes a cross shaft body 1, and the four ends of the cross shaft body 1 are rotatably provided with connecting heads 2, a lubricating positioning seat 3 is provided at the center of the front end surface of the cross shaft body 1, a lubricating liquid guide groove 4 is provided between the lubricating positioning seat 3 and the four connecting heads 2, a pressing diaphragm 5 and a liquid injection port 6 are provided at the front end surface of the lubricating positioning seat 3, a positioning chamber 7 is provided inside the lubricating positioning seat 3, a liquid storage frame 8 connected to the pressing diaphragm 5 is provided at the center of the positioning chamber 7, and a liquid injection pipe 9 connected to the liquid injection port 6 is provided on the liquid storage frame 8. The lubricating positioning seat 3 is provided with nozzles 10 fitted into the corresponding lubricating liquid guide groove 4 around, and a liquid infusion pipe 11 is obliquely provided between the nozzle 10 and the liquid storage frame 8. The bottom surface of the pressing diaphragm 5 is provided with a pressing piece 12 corresponding to the liquid infusion pipe 11, and the end of the pressing piece 12 is provided with a sealing piece 13 that fits and seals the inlet of the liquid infusion pipe 11.

[0037] In order to improve the firmness of the connection, the lubrication locating seat 3 and the cross shaft body 1 are an integrated structure.

[0038] In order to improve the structural strength, the cross shaft body 1 is made of alloy steel, which has the special properties of high toughness, wear resistance and non-magneticity.

[0039] In order to prevent liquid leakage, a sealing plug is threadedly connected to the liquid injection port 6, and a leak-proof gasket is provided on the contact surface between the sealing plug and the liquid injection port 6.

[0040] In order to drive the closing piece 13 to move downward, the pressing piece 12 is arranged tilted.

[0041] In order to facilitate pressing, the top of the pressing membrane 5 has a curvature.

[0042] In order to adapt to push switches of different shapes, the push membrane 5 is a square structure.

[0043] In order to facilitate connection, a connection notch is provided at the end of the connector 2, which is connected by groove connection or threaded connection. This connection method is simple and does not require special professional skills. Ordinary workers can operate it after simple training.

[0044] The vehicle cross shaft is equipped with a lubricating positioning component, which can be quantitatively injected to prevent dripping. Before use, the lubricating liquid is injected into the liquid storage frame 8 through the liquid injection port 6. The maintenance personnel press the pressing diaphragm 5 once or multiple times according to the use of the cross shaft, so that the pressing diaphragm 5 drives the pressing piece 12, and the closing piece 13 on the pressing piece 12 releases the seal on the infusion pipe 11. At the same time, the liquid storage frame 8 is subjected to the pressure of the pressing diaphragm 5, and the lubricating liquid in the liquid storage frame flows into the infusion pipe 11, and is finally sprayed into the lubricating liquid guide groove 4 by the nozzle 10. The lubricating liquid follows the lubricating liquid guide groove 4 into the connection gap between the end of the cross shaft body 1 and the connector 2 for lubrication maintenance.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0046] Those skilled in the art will appreciate that the above embodiments are intended only to clearly illustrate the present invention and are not intended to limit the scope of the present invention. Other variations or modifications may be made based on the above disclosure, and such variations or modifications are still within the scope of the present invention.

Claims

1. A cross shaft for a vehicle, characterized by: The structure comprises a cross shaft body (1), the four ends of the cross shaft body (1) are all rotatably provided with connectors (2), a lubricating positioning seat (3) is provided at the center of the front end face of the cross shaft body (1), a lubricating liquid guide groove (4) is provided between the lubricating positioning seat (3) and the four connectors (2), a pressing diaphragm (5) and a liquid injection port (6) are provided at the front end face of the lubricating positioning seat (3), a positioning chamber (7) is provided inside the lubricating positioning seat (3), and a positioning chamber (7) is provided at the center of the positioning chamber (7) in correspondence with the pressing diaphragm (5). The lubricating positioning seat (3) is provided with a liquid storage frame (8), the liquid storage frame (8) is provided with a liquid injection pipe (9) connected to the liquid injection port (6), the lubricating positioning seat (3) is provided with nozzles (10) matched with corresponding lubricating liquid guide grooves (4) on all four sides, a liquid infusion pipe (11) is obliquely provided between the nozzle (10) and the liquid storage frame (8), the bottom surface of the pressing diaphragm (5) is provided with a pressing piece (12) corresponding to the liquid infusion pipe (11), and the end of the pressing piece (12) is provided with a sealing piece (13) that fits and seals the inlet of the liquid infusion pipe (11).

2. The vehicle cross shaft according to claim 1, characterized in that: The lubrication positioning seat (3) and the cross shaft body (1) are an integrated structure.

3. The vehicle cross shaft according to claim 2, characterized in that: The cross shaft body (1) is made of alloy steel.

4. The vehicle cross shaft according to claim 1, characterized in that: A sealing plug is embedded on the liquid injection port (6).

5. The vehicle cross shaft according to claim 1, characterized in that: The pressing piece (12) is arranged at an angle.

6. The vehicle cross shaft according to claim 1, characterized in that: The top end of the pressing diaphragm (5) has an arc.

7. The vehicle cross shaft according to claim 6, characterized in that: The pressing diaphragm (5) is in a circular or square shape.

8. The vehicle cross shaft according to claim 1, characterized in that: The end of the connector (2) is provided with a connecting notch.

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