A drive shaft fixing joint and wheel end assembly with a detachable wheel decorative cover

Abstract

The present application relates to a drive shaft fixing joint and a wheel end assembly of a detachable wheel decorative cover, which belongs to the field of automobile assembly technology. The drive shaft fixing joint and the wheel end assembly of the detachable wheel decorative cover include a drive shaft fixing joint, a cavity unit that is interconnected and is opened in a shell and a connecting shaft, and the end of the connecting shaft away from the shell is open, and a disassembly mechanism is arranged in the cavity unit, and the disassembly mechanism includes a push rod that is arranged in the cavity unit and moves toward the decorative cover to eject the decorative cover, and a driving mechanism for driving the push rod to work; the present application can use a disassembly mechanism that is integrally arranged with the drive shaft fixing joint. When the decorative cover needs to be removed, the active rod in the drive shaft fixing joint is rotated by a tool, and the active rod drives the driven rod to rotate, so that the push rod can be telescopically moved along the length direction of the driven rod, so that the push rod is extended and pressed directly against the inner side of the decorative cover, avoiding the existing disassembly tool being a separate tool that needs to be taken separately each time it is used.

Description

Technical Field

[0001] The present application relates to the technical field of automobile assembly, and in particular to a drive shaft fixing joint and a wheel end assembly of a detachable wheel decorative cover. Background Art

[0002] Assembling a wheel cover in the center hole of the wheel hub can not only display the car logo, but also has a certain aesthetic appeal. The wheel cover can be designed in a variety of ways according to the car's styling requirements. Therefore, the wheel cover has been widely used on various passenger cars. In order to avoid the wheel cover from falling off, loosening, or making abnormal noises during driving, the wheel cover must be assembled reliably and cannot be easily loosened or detached. When the wheel cover is scratched or assembled incorrectly, it must be removed. In order to facilitate the removal of the wheel cover.

[0003] The removal of traditional wheel decorative covers is rather cumbersome. It is necessary to remove the entire wheel from the vehicle and then knock out the decorative cover from the inside of the wheel with a harder tool. This removal method is not only easy to bump the wheel, but also easy to cause damage to the wheel decorative cover. If the wheel is not removed, the decorative cover can only be picked out from the center hole after being damaged. This method also has certain safety hazards. Therefore, the removal of traditional wheel decorative covers has disadvantages such as low efficiency, easy damage, and unsafe.

[0004] In order to solve the above problem, Chinese invention patent publication number CN110884298A discloses a wheel cover removal tool. The wheel cover removal tool includes a tool body and is characterized in that: the tool body includes a circular disc, two arc blades that are symmetrical to each other and perpendicularly connected to the edge of the circular disc, and a hook connected to the end of the arc blade away from the circular disc; the tool body also includes a handle, one end of which is fixedly connected to the center of the circular disc by a bolt; and the tool body also includes an outer coil spring, which is sleeved on the middle part of the two arc blades.

[0005] However, the wheel cover removal tool is an independent removal tool, which needs to be found separately or kept as a long-term backup when the cover needs to be removed, resulting in the use of tool storage space in the vehicle or requiring additional time to find the tool. In addition, there is a risk of scratching the surface of the cover when removing the cover on one side. Summary of the Invention

[0006] An embodiment of the present application provides a drive shaft fixing joint and wheel end assembly for a removable wheel decorative cover to solve the problem in the related art that the existing disassembly tools are independent disassembly tools, which need to be found separately or kept on standby for a long time when the decorative cover needs to be removed, resulting in occupying the tool storage space in the vehicle or requiring additional time to find the tool, and there is a risk of scratching the surface of the decorative cover when disassembling on one side of the surface of the decorative cover.

[0007] A first aspect of an embodiment of the present application provides a drive shaft fixing joint of a detachable wheel decorative cover, comprising:

[0008] A drive shaft fixing section, comprising a housing and a connecting shaft connected to the housing, wherein the housing and the connecting shaft are provided with interconnected cavity units, and an end of the connecting shaft away from the housing is open;

[0009] The disassembly mechanism is arranged in the cavity unit and includes a push rod arranged in the cavity unit and moving toward the decorative cover to push out the decorative cover, and a driving mechanism for driving the push rod to work.

[0010] In some embodiments, the cavity unit includes a first cavity opened in the outer wall of the shell and a second cavity opened in the connecting shaft, and the first cavity and the second cavity are perpendicular to each other and connected;

[0011] A sliding groove cooperating with the push rod is provided on the cavity wall of the second cavity;

[0012] The side wall of the shell is provided with a first cavity opening which is in communication with the first cavity;

[0013] The end of the connecting shaft close to the decorative cover is provided with a second cavity opening which is in communication with the second cavity and the sliding groove.

[0014] In some embodiments, the driving mechanism includes an active rod and a driven rod disposed perpendicularly to each other, the active rod and the driven rod being in transmission connection with each other, the driven rod being disposed in the second cavity, and the active rod being disposed in the first cavity;

[0015] The push rod is sleeved on the outside of the driven rod and is threadedly connected;

[0016] The cross section of the push rod is U-shaped.

[0017] In some embodiments, the driving mechanism includes a pressurizing device that pressurizes the push rod in the second cavity by connecting to the first cavity to push the push rod.

[0018] In some embodiments, the cavity unit includes a second cavity formed in the connecting shaft, and a cavity wall of the second cavity is provided with a sliding groove that cooperates with the push rod;

[0019] The end of the connecting shaft close to the decorative cover is provided with a second cavity opening which is in communication with the second cavity and the sliding groove.

[0020] In some embodiments, the driving mechanism includes a motor disposed in the second cavity and a screw drivingly connected to an output shaft of the motor;

[0021] The push rod is sleeved on the outer side of the screw rod and is threadedly connected.

[0022] In some embodiments, the cavity unit includes a first cavity and a third cavity opened in the outer wall of the shell and a second cavity opened in the connecting shaft, and the first cavity, the third cavity and the second cavity form a Z-shape that is interconnected;

[0023] A sliding groove cooperating with the push rod is provided on the cavity wall of the second cavity;

[0024] The end of the shell away from the connecting shaft is provided with a third cavity opening connected to the third cavity;

[0025] The end of the connecting shaft close to the decorative cover is provided with a second cavity opening which is in communication with the second cavity and the sliding groove.

[0026] In some embodiments, the driving mechanism includes an active rod and a driven rod parallel to each other, wherein the active rod and the driven rod are connected to each other via a transmission rod, wherein the active rod is disposed in the third cavity, the driven rod is disposed in the second cavity, and the transmission rod is disposed in the first cavity;

[0027] The push rod is sleeved on the outside of the driven rod and is threadedly connected. The cross section of the push rod is U-shaped.

[0028] In some embodiments, a third bevel gear is provided at both ends of the transmission rod;

[0029] The active rod is provided with a first bevel gear meshing with the third bevel gear at one end close to the transmission rod;

[0030] The driven rod is provided with a second bevel gear meshing with the third bevel gear at one end close to the transmission rod.

[0031] A second aspect of an embodiment of the present application provides a wheel end assembly, wherein the wheel end assembly uses the drive shaft fixing joint of the detachable wheel decorative cover.

[0032] The beneficial effects of the technical solution provided by this application include:

[0033] By using a disassembly mechanism integrated with the drive shaft fixing joint, when the decorative cover needs to be disassembled, a tool is used to rotate the active rod in the drive shaft fixing joint, and the active rod drives the driven rod to rotate, so that the push rod can be telescopically moved along the length direction of the driven rod, so that the push rod is extended and directly pressed against the inner side of the decorative cover, avoiding the existing disassembly tool as a separate tool that needs to be taken separately each time it is used.

[0034] The decorative cover is pushed out from the inner side of the wheel hub to make it fall off. The surface on which the push rod applies force is the inner side of the decorative cover, thereby avoiding the problem that existing disassembly tools are mostly tools that pull away from the outer side of the decorative cover, which will scratch the surface of the outer side of the decorative cover, causing damage to the decorative cover and appearance, and reducing the appearance of the wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] Figure 1 A first structural diagram of the disassembly mechanism provided in an embodiment of the present application;

[0037] Figure 2 A schematic diagram of the working state of the disassembly mechanism provided in the embodiment of the present application;

[0038] Figure 3 A schematic diagram of the storage state of the disassembly mechanism provided in the embodiment of the present application;

[0039] Figure 4 A second structural diagram of the disassembly mechanism provided in an embodiment of the present application;

[0040] Figure 5 This is a three-dimensional schematic diagram provided in the embodiment of the present application;

[0041] Figure 6 This is an assembly diagram provided for an embodiment of the present application.

[0042] 1. Housing; 11. Push rod; 12. Active rod; 121. First bevel gear; 13. Driven rod; 131. Second bevel gear; 14. First cavity; 15. Second cavity; 151. Slide groove; 16. Transmission rod; 161. Third bevel gear; 18. Third cavity; 20. Connecting shaft. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] An embodiment of the present application provides a drive shaft fixing joint and a method of use for a removable wheel decorative cover, which can solve the problem that the existing disassembly tool is an independent disassembly tool, which needs to be found separately or kept on standby for a long time when the decorative cover needs to be removed, resulting in occupying the tool storage space in the vehicle or requiring additional time to find it, and there is a risk of scratching the surface of the decorative cover when disassembling on one side of the surface of the decorative cover.

[0045] See also Figure 1-6 As shown, in a first aspect, an embodiment of the present application provides a drive shaft fixing joint of a detachable wheel decorative cover, comprising:

[0046] The drive shaft fixing section includes a housing 1 and a connecting shaft 20 connected to the housing 1. The housing 1 and the connecting shaft 20 are provided with interconnected cavity units, and the end of the connecting shaft 20 away from the housing 1 is open;

[0047] The disassembly mechanism is arranged in the cavity unit, and the disassembly mechanism includes a push rod 11 arranged in the cavity unit and moving toward the decorative cover to push out the decorative cover, and a driving mechanism for driving the push rod 11 to work.

[0048] First, assemble the drive shaft fixed joint and the steering knuckle, so that the connecting shaft 20 passes through the steering knuckle and is located on one side of the decorative cover. The housing 1 of the drive shaft fixed joint is connected to the drive shaft, and the connecting shaft 20 of the drive shaft fixed joint is inserted into the opening of the steering knuckle and passes through the steering knuckle, and then assembled and fixed with the steering knuckle. One end of the connecting shaft 20 passing through the steering knuckle has a second cavity, and the second cavity corresponds to the decorative cover, so that after the push rod 11 is extended, it can directly press on the decorative cover to apply thrust to the decorative cover and eject the decorative cover.

[0049] When the decorative cover needs to be removed, the driving mechanism drives the push rod 11 to extend and press against the decorative cover, and continuously applies thrust to the decorative cover until the decorative cover is pushed out of the wheel hub for removal. The driving mechanism is driven by a tool to work, and the driving mechanism can make the push rod 11 telescopic. After the push rod 11 extends out of the connecting shaft 20, it can press against the decorative cover to apply thrust to the decorative cover until the decorative cover is pushed out. When the push rod 11 is completed, the active rod 12 is reversed, and the driven rod 13 is reversed to retract the push rod 11.

[0050] The driving device may also be a pressurizing device that directly pressurizes the cavity unit so that the push rod 11 is subjected to external pressure, and then the pressure drives the push rod 11 to move and apply thrust to the decorative cover to remove the decorative cover.

[0051] Through the disassembly mechanism integrated with the drive shaft fixing section, when the decorative cover needs to be disassembled, the active rod 12 in the drive shaft fixing section is rotated by using a tool, and the active rod 12 drives the driven rod 13 to rotate, so that the push rod 11 can be telescopically moved along the length direction of the driven rod 13, so that the push rod 11 is extended and directly pressed against the inner side of the decorative cover. The cavity unit can also be pressurized by a pressurizing device, and the pressure is used to push the push rod 11, so that the push rod 11 applies a thrust to the decorative cover, avoiding the existing disassembly tool being a separate tool that needs to be taken separately each time.

[0052] By pushing out the decorative cover from the inner side of the wheel hub, the decorative cover is removed. The surface to which the push rod 11 applies force is the inner side of the decorative cover, thereby avoiding the problem that most existing disassembly tools are tools that are pulled from the outside of the decorative cover, which will scratch the surface of the outer side of the decorative cover, causing damage to the decorative cover and appearance, and reducing the aesthetics of the wheel.

[0053] The end of the push rod 11 close to the decorative cover can be wrapped with a soft material such as a cushion or silicone to prevent the inner side of the decorative cover from being worn when the push rod 11 applies a thrust to the decorative cover.

[0054] The end of the push rod 11 close to the decorative cover can also extend the connecting shaft 20, and this end is trumpet-shaped. Through the trumpet-shaped opening design, when the push rod 11 applies thrust to the decorative cover, the force transmission is more uniform, and the force-bearing area of ​​the decorative cover is increased, thereby avoiding local force on the decorative cover.

[0055] In some optional embodiments, see Figure 1-3 and Figure 5-6 As shown, in the drive shaft fixing joint for removing the wheel decorative cover, the cavity unit includes a first cavity 14 opened in the outer wall of the shell 1 and a second cavity 15 opened in the connecting shaft 20. The first cavity 14 and the second cavity 15 are perpendicular to each other and connected. A slide groove 151 cooperating with the push rod 11 is opened on the cavity wall of the second cavity 15, and a first cavity opening connected to the first cavity 14 is opened on the side wall of the shell 1. A second cavity opening connected to the second cavity 15 and the slide groove 151 is opened at one end of the connecting shaft 20 close to the decorative cover. The driven rod 13 is arranged in the second cavity 15, and the active rod 12 is arranged in the first cavity 14.

[0056] There are two slide grooves 151, which are located on the upper and lower sides of the second cavity 15 respectively. The two side plates in the U-shaped push rod 11 are slidably set in the two slide grooves 151 respectively. The slide grooves 151 limit and guide the push rod 11 so that the push rod 11 cannot rotate with the rotation of the driven rod 13.

[0057] The center line of the first cavity 14 is perpendicular to the center line of the shell 1, the center line of the second cavity 15 coincides with the center line of the connecting shaft 20, and the ends of the first cavity 14 and the second cavity 15 that are close to each other are connected to each other. If it is located on the right wheel of the vehicle body, the first cavity 14 and the second cavity 15 form an L-shape rotated 90° counterclockwise and mirrored. If it is located on the left wheel of the vehicle body, the first cavity 14 and the second cavity 15 form an L-shape rotated 90° counterclockwise.

[0058] Because the center line of the first cavity 14 is perpendicular to the center line of the shell 1, the first cavity opening is located on the side of the shell 1 close to the connecting shaft 20. After the drive shaft fixed joint and the steering knuckle are assembled, the first cavity opening will be located between the drive shaft fixed joint and the steering knuckle. Therefore, when designing the drive shaft fixed joint and the steering knuckle, it is necessary to increase the internal opening size of the drive shaft fixed joint and the steering knuckle to facilitate the insertion of tools to combine with the active rod 12, so as to avoid the traditional steering knuckle having no opening or a small opening diameter, which makes it difficult to insert tools and makes it impossible to operate the drive mechanism.

[0059] In some optional embodiments, see Figure 1-3 and Figure 5-6 As shown, in the drive shaft fixing section for removing the wheel decorative cover, the driving mechanism includes an active rod 12 and a driven rod 13 arranged perpendicular to each other, and the active rod 12 and the driven rod 13 are transmission-connected, and the push rod 11 is sleeved on the outside of the driven rod 13 and threadedly connected. The cross-section of the push rod 11 is U-shaped, the active rod 12 is rotatably connected in the first cavity 14, and the driven rod 13 is rotatably arranged in the second cavity 15. The end of the active rod 12 close to the first cavity is polygonal, and a matching universal sleeve can be used for sleeve connection, or a polygonal groove is provided at the end of the active rod 12 close to the first cavity, and a matching universal wrench can be used for insertion and connection.

[0060] In this embodiment, a first bevel gear 121 is provided at one end of the active rod 12 close to the driven rod 13 , and a second bevel gear 131 is provided at one end of the driven rod 13 close to the active rod 12 . The first bevel gear 121 and the second bevel gear 131 are meshed with each other.

[0061] The active rod 12 is perpendicular to the axis of the housing 1 and is disposed in the housing 1 . The driven rod 13 is parallel to the axis of the connecting shaft 20 , and the axis of the driven rod 13 coincides with the axis of the connecting shaft 20 .

[0062] A first bevel gear 121 is fixed to one end of the active rod 12 close to the driven rod 13, and a second bevel gear 131 is fixed to one end of the driven rod 13 close to the active rod 12. The ends of the active rod 12 and the driven rod 13 close to each other are meshed and connected to each other through the first bevel gear 121 and the second bevel gear 131. When the active rod 12 rotates, the second bevel gear 131 is driven to rotate by the first bevel gear 121, and the second bevel gear 131 drives the driven rod 13 to rotate, so that the push rod 11 threadedly connected to the outside of the driven rod 13 moves along the length direction of the driven rod 13, so that the push rod 11 extends from the opening of the connecting shaft 20 to apply thrust to the decorative cover. When the decorative cover falls off, the push rod 11 can be retracted by reversing the driven rod 13.

[0063] The outside of the active rod 12 and the driven rod 13 are both provided with bearings for support. The cross-section of the push rod 11 is U-shaped, with one end of the U-shaped opening close to the decorative cover, and a threaded hole is provided at the closed end of the U-shaped, which is sleeved on the outside of the driven rod 13 and threadedly connected to the driven rod 13.

[0064] In some optional embodiments, in the drive shaft fixing joint for removing the wheel decorative cover, the cavity unit includes a second cavity 15 opened in the connecting shaft 20, and a slide groove 151 cooperating with the push rod 11 is opened on the cavity wall of the second cavity 15, and a second cavity opening connected to the second cavity 15 and the slide groove 151 is opened at one end of the connecting shaft 20 close to the decorative cover.

[0065] In this embodiment, the driving mechanism includes a motor disposed in the second cavity 15 and a screw rod drivingly connected to the output shaft of the motor. The push rod 11 is sleeved on the outside of the screw rod and threadedly connected.

[0066] The drive shaft fixing section only has a second cavity 15 located inside the connecting shaft 20. A motor is built into the second cavity 15 as a power source. A screw is rotatably connected inside the second cavity 15, and the push rod 11 is threadedly connected to the outside of the screw. The motor drives the screw to rotate, and the screw rotation causes the push rod 11 to move along the length of the screw until it hits the decorative cover and pushes the decorative cover out. When the decorative cover falls off, the screw can be reversed to retract the push rod 11 into the connecting shaft 20.

[0067] In some optional embodiments, see Figure 4-6 As shown, in the drive shaft fixing joint for removing the wheel decorative cover, the cavity unit includes a first cavity 14 and a third cavity 18 opened in the outer wall of the shell 1 and a second cavity 15 opened in the connecting shaft 20. The first cavity 14, the third cavity 18 and the second cavity 15 form a Z-shape that is interconnected. A slide groove 151 that cooperates with the push rod 11 is opened on the cavity wall of the second cavity 15. A third cavity opening that is connected to the third cavity 18 is opened at the end of the shell 1 away from the connecting shaft 20. A second cavity opening that is connected to the second cavity 15 and the slide groove 151 is opened at the end of the connecting shaft 20 close to the decorative cover. The active rod 12 is arranged in the third cavity 18, the driven rod 13 is arranged in the second cavity 15, the transmission rod 16 is arranged in the first cavity 14, and the two sides of the push rod 11 are slidably arranged in the slide groove 151.

[0068] There are two slide grooves 151, which are located on the upper and lower sides of the second cavity 15 respectively. The two side plates in the U-shaped push rod 11 are slidably set in the two slide grooves 151 respectively. The slide grooves 151 limit and guide the push rod 11 so that the push rod 11 cannot rotate with the rotation of the driven rod 13.

[0069] The first cavity 14 is located in the side wall of the shell 1 parallel to the center line, the third cavity 18 is located on the side of the shell 1 close to the connecting shaft 20 and perpendicular to the center line, and the second cavity 15 is located inside the connecting shaft 20 and parallel to and coincides with the center line of the connecting shaft 20.

[0070] The first cavity 14 , the third cavity 18 and the second cavity 15 are arranged in a Z shape in the fixed section of the drive shaft.

[0071] Because the active rod 12 is arranged in the side wall of the shell 1 parallel to the center line, the thickness of the side wall of the shell 1 where the active rod 12 is arranged is higher than the side wall of the other side, so that after the shell 1 is connected to the drive shaft, the side wall on the side where the active rod 12 is arranged is higher than the drive shaft, and the height of the active rod 12 is also higher than the drive shaft, so that after the drive shaft and the drive shaft fixing joint are assembled, the third cavity can leak out, avoiding the third cavity being blocked and making it impossible for the tool to be connected to the active rod 12.

[0072] In some optional embodiments, see Figure 4-6 As shown, in the drive shaft fixing section for removing the wheel decorative cover, the drive mechanism includes an active rod 12 and a driven rod 13 parallel to each other, a transmission rod 16 is vertically arranged between the active rod 12 and the driven rod 13, a push rod 11 is sleeved on the outside of the driven rod 13 and threadedly connected, and the cross-section of the push rod 11 is U-shaped.

[0073] In this embodiment, a first bevel gear 121 is provided at one end of the active rod 12 close to the transmission rod 16, a second bevel gear 131 is provided at one end of the driven rod 13 close to the transmission rod 16, and a third bevel gear 161 is provided at both ends of the transmission rod 16. The first bevel gear 121 is engaged with the third bevel gear 161 at one end of the transmission rod 16, and the second bevel gear 131 is engaged with the third bevel gear 161 at the other end of the transmission rod 16.

[0074] The active rod 12 is rotatably connected in the third cavity 18, the transmission rod 16 is rotatably connected in the first cavity 14, and the driven rod 13 is rotatably connected in the second cavity 15. The end of the active rod 12 close to the third cavity is polygonal and can be connected using a matching sleeve, or the end of the active rod 12 close to the third cavity is provided with a polygonal groove, which can be inserted and connected using a matching wrench.

[0075] Because the active rod 12 is provided in the side wall of the housing 1 which is parallel to the center line, the third cavity is located on the side of the housing 1 away from the connecting shaft 20. Therefore, no tools are required to reach into the interior of the steering knuckle to connect with the active rod 12. Instead, the active rod 12 can be directly connected to the outside, thereby improving disassembly efficiency and practicality.

[0076] The active rod 12 is arranged parallel to the center line of the shell 1, the transmission rod 16 is arranged perpendicular to the center line of the shell 1, the driven rod 13 is arranged parallel to the center line of the connecting shaft 20 and coincides with each other, the active rod 12 is located in the outer walls on the upper and lower sides of the shell 1, the transmission rod 16 is located in the outer wall of the shell 1 near the connecting shaft 20, and the driven rod 13 is located inside the connecting shaft 20.

[0077] A first bevel gear 121 is fixed to the end of the active rod 12 close to the transmission rod 16, a second bevel gear 131 is fixed to the end of the driven rod 13 close to the transmission rod 16, and a third bevel gear 161 is fixed to both ends of the transmission rod 16. The active rod 12 is meshed and connected to one of the third bevel gears 161 in the transmission rod 16 through the first bevel gear 121, and the driven rod 13 is meshed and connected to another third bevel gear 161 in the transmission rod 16 through the second bevel gear 131.

[0078] When the active rod 12 rotates, the third bevel gear 161 is driven to rotate through the first bevel gear 121, and the rotation of the third bevel gear 161 synchronously drives the transmission rod 16 to rotate. The rotation of the transmission rod 16 causes the other third bevel gear 161 to rotate synchronously, so that the transmission rod 16 drives the second bevel gear 131 to rotate through the other third bevel gear 161, and the second bevel gear 131 synchronously drives the driven rod 13 to rotate, so that the push rod 11 threadedly connected to the outside of the driven rod 13 moves along the length direction of the driven rod 13, so that the push rod 11 extends from the opening of the connecting shaft 20 to apply thrust to the decorative cover. When the decorative cover falls off, the driven rod 13 is reversed to retract the push rod 11.

[0079] The outside of the active rod 12, the transmission rod 16 and the driven rod 13 are all provided with bearings for support. The cross-section of the push rod 11 is U-shaped, with one end of the U-shaped opening close to the decorative cover, and a threaded hole is provided at the closed end of the U-shaped, which is sleeved on the outside of the driven rod 13 and threadedly connected.

[0080] In some other embodiments, the active rod 12 is connected and rotated in the third cavity 18 of the shell 1, and the driven rod 13 is connected and rotated in the connecting shaft 20. A worm gear is fixed to the end of the driven rod 13 close to the shell 1. The active rod 12 is a worm gear, and the diameter of the worm gear can engage with the active rod 12. When the active rod 12 rotates, it drives the worm gear to rotate, and the worm gear drives the driven rod 13 to rotate, so that the driven rod 13 can drive the push rod 11 to move along its length direction and extend out of the connecting shaft 20, so that the push rod 11 is tightly pressed against the decorative cover, and continuously applies thrust to the decorative cover until the decorative cover falls off.

[0081] See also Figure 1-6 As shown, in other aspects of the embodiment of the present application, a method for using a drive shaft fixing joint of a detachable wheel decorative cover is provided, comprising the following steps:

[0082] Step 1: Assemble the drive shaft fixed joint and the steering knuckle, so that the connecting shaft 20 passes through the steering knuckle and is located on one side of the decorative cover. The housing 1 of the drive shaft fixed joint is connected to the drive shaft. The connecting shaft 20 of the drive shaft fixed joint is inserted into the opening of the steering knuckle and passes through the steering knuckle, and then assembled and fixed with the steering knuckle. One end of the connecting shaft 20 passing through the steering knuckle has a second cavity, and the second cavity corresponds to the decorative cover, so that the push rod 11 can be directly pressed against the decorative cover after being extended to apply thrust to the decorative cover and eject the decorative cover.

[0083] Step 2. When the decorative cover needs to be removed, the driving mechanism drives the push rod 11 to extend and press against the decorative cover, and continuously applies thrust to the decorative cover until the decorative cover is pushed out of the wheel hub for removal. The driving mechanism is driven by a tool to work, and the driving mechanism can make the push rod 11 telescopic. After the push rod 11 extends out of the connecting shaft 20, it can press against the decorative cover to apply thrust to the decorative cover until the decorative cover is pushed out. When the push rod 11 is completed, the active rod 12 is reversed, and the driven rod 13 is reversed to retract the push rod 11, or a pressurizing device is used to directly drive the push rod 11 with pressure.

[0084] Through the disassembly mechanism integrated with the drive shaft fixing section, when the decorative cover needs to be disassembled, the active rod 12 in the drive shaft fixing section is rotated by using a tool, and the active rod 12 drives the driven rod 13 to rotate, so that the push rod 11 can be telescopically moved along the length direction of the driven rod 13, so that the push rod 11 is extended and directly pressed against the inner side of the decorative cover, avoiding the existing disassembly tool as a separate tool that needs to be taken separately each time it is used.

[0085] In some optional embodiments, see Figure 1-3 and Figure 5-6 As shown, in the drive shaft fixing section for removing the wheel decorative cover, when the decorative cover needs to be removed, the driving mechanism drives the push rod 11 to extend and press against the decorative cover, and continuously applies thrust to the decorative cover until the decorative cover is pushed out from the wheel hub. The specific removal process is as follows:

[0086] Step 201: Use a tool to reach between the steering knuckle and the housing 1, and then connect it to the end of the active rod 12 close to the first cavity. When the end of the active rod 12 close to the first cavity is polygonal, use a universal socket tool to reach between the steering knuckle and the housing 1 at multiple angles and sleeve on the active rod 12. When the end of the active rod 12 close to the first cavity is a polygonal groove, use a universal wrench to reach between the steering knuckle and the housing 1 at multiple angles and insert it into the groove of the active rod 12 to drive the active rod 12 to rotate.

[0087] Step 202: Use a tool to rotate the active rod 12 so that the active rod 12 drives the driven rod 13 to rotate. The driven rod 13 rotates so that the push rod 11 extends from the connecting shaft 20 and presses against the decorative cover. By rotating the active rod 12 with a universal wrench or a universal sleeve, the active rod 12 drives the driven rod 13 to rotate, and the push rod 11 can be moved along the length direction of the driven rod 13.

[0088] Step 203 : Continue to rotate the active rod 12 so that the push rod 11 continuously applies a thrust to the decorative cover until the decorative cover falls off.

[0089] Step 204 , after the decorative cover falls off, the active rod 12 is reversed, driving the driven rod 13 to reverse, so that the push rod 11 can be retracted to avoid being in the outside world and colliding with other parts.

[0090] In some optional embodiments, see Figure 4-6 As shown, in the drive shaft fixing section for removing the wheel decorative cover, when the decorative cover needs to be removed, the driving mechanism drives the push rod 11 to extend and press against the decorative cover, and continuously applies thrust to the decorative cover until the decorative cover is pushed out from the wheel hub. The specific removal process is as follows:

[0091] Step 201: Connect the end of the active rod 12 close to the third cavity through a tool. At this time, the third cavity is located at the end of the housing 1 away from the connecting shaft 20, so there is no need to extend the tool between the steering knuckle and the housing 1, and the tool can be directly connected to the active rod 12.

[0092] Step 202: Use a tool to rotate the active rod 12 so that the first bevel gear 121 on the active rod 12 drives the third bevel gear 161 on the transmission rod 16 that is meshed with it to rotate. The rotation of the third bevel gear 161 synchronously drives the transmission rod 16 to rotate, so that the transmission rod 16 drives the second bevel gear 131 to rotate through the third bevel gear 161 away from the active rod 12, so that the second bevel gear 131 synchronously drives the driven rod 13 to rotate. The rotation of the driven rod 13 causes the push rod 11 to extend from the connecting shaft 20 along its length direction and press against the decorative cover.

[0093] Step 203 : Continue to rotate the active rod 12 so that the push rod 11 continuously applies a thrust to the decorative cover until the decorative cover falls off.

[0094] Step 204 , after the decorative cover falls off, the active rod 12 is reversed, driving the driven rod 13 to reverse, so that the push rod 11 can be retracted to avoid being in the outside world and colliding with other parts.

[0095] In some optional embodiments, in the drive shaft fixing section for removing the wheel decorative cover, when the decorative cover needs to be removed, the driving mechanism drives the push rod 11 to extend and press against the decorative cover, and continuously applies thrust to the decorative cover until the decorative cover is pushed out from the wheel hub. The specific process of removal is as follows:

[0096] Step 201: Take the pressurizing device, connect it to the first cavity or the third cavity, pressurize the interior of the cavity unit, and use the pressure to push the push rod 11, so that the push rod 11 moves toward the decorative cover until the decorative cover falls off.

[0097] In some optional embodiments, in the drive shaft fixing section for removing the wheel decorative cover, when the decorative cover needs to be removed, the driving mechanism drives the push rod 11 to extend and press against the decorative cover, and continuously applies thrust to the decorative cover until the decorative cover is pushed out from the wheel hub. The specific process of removal is as follows:

[0098] Step 201: Use a motor to drive the screw to rotate. The screw rotation causes the push rod 11 to move along the length direction of the screw until it hits the decorative cover and pushes the decorative cover out. When the decorative cover falls off, reverse the screw to retract the push rod 11 into the connecting shaft 20.

[0099] See also Figure 2 and Figure 6 As shown, the second aspect of the embodiment of the present application provides a wheel end assembly, which uses the above-mentioned drive shaft fixing joint. Through the drive shaft fixing joint with a disassembly mechanism, the wheel end assembly can have the function of self-removing the decorative cover.

[0100] The working principle and process of this application:

[0101] Assemble the drive shaft fixed joint and the steering knuckle, and make the connecting shaft 20 pass through the steering knuckle and be located on one side of the decorative cover. The housing 1 of the drive shaft fixed joint is connected to the drive shaft. The connecting shaft 20 of the drive shaft fixed joint is inserted into the opening of the steering knuckle and passes through the steering knuckle, and then assembled and fixed with the steering knuckle. One end of the connecting shaft 20 passing through the steering knuckle has a second cavity, and the second cavity corresponds to the decorative cover, so that the push rod 11 can be directly pressed against the decorative cover after being extended to apply thrust to the decorative cover and eject the decorative cover.

[0102] When the driving mechanism adopts an active rod 12 and a driven rod 13:

[0103] Use a tool to reach between the steering knuckle and the housing 1, and then connect it to the end of the active rod 12 close to the first cavity. When the end of the active rod 12 close to the first cavity is polygonal, use a universal socket tool to reach between the steering knuckle and the housing 1 at multiple angles and sleeve on the active rod 12. When the end of the active rod 12 close to the first cavity is a polygonal groove, use a universal wrench to reach between the steering knuckle and the housing 1 at multiple angles and insert it into the groove of the active rod 12, which can drive the active rod 12 to rotate.

[0104] Use a tool to rotate the active rod 12, so that the first bevel gear 121 on the active rod 12 drives the third bevel gear 161 on the transmission rod 16 that is meshed with it to rotate, and the rotation of the third bevel gear 161 synchronously drives the transmission rod 16 to rotate, so that the transmission rod 16 can drive the second bevel gear 131 to rotate through the third bevel gear 161 away from the active rod 12, so that the second bevel gear 131 synchronously drives the driven rod 13 to rotate, and the rotation of the driven rod 13 causes the push rod 11 to extend from the connecting shaft 20 along its length direction and press on the decorative cover.

[0105] Continue to rotate the active rod 12 to make the push rod 11 continue to apply thrust to the decorative cover until the decorative cover falls off. After the decorative cover falls off, the active rod 12 is reversed, driving the driven rod 13 to reverse, so that the push rod 11 can be retracted to avoid being in the outside world and colliding with other parts.

[0106] When the driving mechanism adopts the active rod 12, the transmission rod 16 and the driven rod 13:

[0107] The tool is connected to the end of the active rod 12 close to the third cavity. At this time, the third cavity is located at the end of the housing 1 away from the connecting shaft 20, so there is no need to extend the tool between the steering knuckle and the housing 1, and the tool can be directly connected to the active rod 12.

[0108] Use a tool to rotate the active rod 12, so that the first bevel gear 121 on the active rod 12 drives the third bevel gear 161 on the transmission rod 16 that is meshed with it to rotate, and the rotation of the third bevel gear 161 synchronously drives the transmission rod 16 to rotate, so that the transmission rod 16 can drive the second bevel gear 131 to rotate through the third bevel gear 161 away from the active rod 12, so that the second bevel gear 131 synchronously drives the driven rod 13 to rotate, and the rotation of the driven rod 13 causes the push rod 11 to extend from the connecting shaft 20 along its length direction and press on the decorative cover.

[0109] Continuously rotating the active rod 12 causes the push rod 11 to continuously apply thrust to the decorative cover until the decorative cover falls off. After the decorative cover falls off, the active rod 12 is reversed, driving the driven rod 13 to reverse, so that the push rod 11 can be retracted to avoid being in the outside world and colliding with other parts.

[0110] When the push rod 11 is driven by the pressure device:

[0111] By taking the pressurizing device and connecting it to the first cavity port or the third cavity port, the interior of the cavity unit is pressurized, and the push rod 11 is pushed by the pressure, so that the push rod 11 moves toward the decorative cover until the decorative cover falls off.

[0112] When the push rod 11 is driven by the motor:

[0113] The motor drives the screw to rotate, and the screw rotation causes the push rod 11 to move along the length direction of the screw until it hits the decorative cover and pushes the decorative cover out. When the decorative cover falls off, the screw is reversed to retract the push rod 11 into the connecting shaft 20.

[0114] Through the disassembly mechanism integrated with the drive shaft fixing section, when the decorative cover needs to be disassembled, the active rod 12 in the drive shaft fixing section is rotated by using a tool, and the active rod 12 drives the driven rod 13 to rotate, so that the push rod 11 can be telescopically moved along the length direction of the driven rod 13, so that the push rod 11 is extended and directly pressed against the inner side of the decorative cover, avoiding the existing disassembly tool as a separate tool that needs to be taken separately each time it is used.

[0115] By pushing out the decorative cover from the inner side of the wheel hub, the decorative cover is removed. The surface to which the push rod 11 applies force is the inner side of the decorative cover, thereby avoiding the problem that most existing disassembly tools are tools that are pulled from the outside of the decorative cover, which will scratch the surface of the outer side of the decorative cover, causing damage to the decorative cover and appearance, and reducing the aesthetics of the wheel.

[0116] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0117] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0118] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A drive shaft fixing joint of a detachable wheel decorative cover, characterized in that: include: A drive shaft fixing section, the drive shaft fixing section comprising a housing (1) and a connecting shaft (20) connected to the housing (1), wherein the housing (1) and the connecting shaft (20) are provided with cavity units that are in communication with each other, and an end of the connecting shaft (20) away from the housing (1) is open; A disassembly mechanism is provided in the cavity unit and comprises a push rod (11) provided in the cavity unit and moving toward the decorative cover to eject the decorative cover, and a driving mechanism for driving the push rod (11) to work.

2. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 1, characterized in that: The cavity unit comprises a first cavity (14) opened in the outer wall of the housing (1) and a second cavity (15) opened in the connecting shaft (20), wherein the first cavity (14) and the second cavity (15) are perpendicular to each other and communicate with each other; A sliding groove (151) that cooperates with the push rod (11) is provided on the wall of the second cavity (15); A first cavity opening communicating with the first cavity (14) is provided on the side wall of the housing (1); The connecting shaft (20) is provided with a second cavity opening at one end close to the decorative cover, the second cavity opening being in communication with the second cavity (15) and the sliding groove (151).

3. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 2, characterized in that: The driving mechanism comprises an active rod (12) and a driven rod (13) which are arranged perpendicular to each other, wherein the active rod (12) and the driven rod (13) are transmission-connected, the driven rod (13) is arranged in the second cavity (15), and the active rod (12) is arranged in the first cavity (14); The push rod (11) is sleeved on the outside of the driven rod (13) and is threadedly connected; The push rod (11) has a U-shaped cross section.

4. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 2, characterized in that: The driving mechanism comprises a pressurizing device for pressurizing the push rod (11) in the second cavity (15) by connecting to the first cavity (14) to push the push rod (11).

5. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 1, characterized in that: The cavity unit comprises a second cavity (15) provided in the connecting shaft (20), and a sliding groove (151) cooperating with the push rod (11) is provided on the cavity wall of the second cavity (15); The connecting shaft (20) is provided with a second cavity opening at one end close to the decorative cover, the second cavity opening being in communication with the second cavity (15) and the sliding groove (151).

6. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 5, characterized in that: The driving mechanism comprises a motor disposed in the second cavity (15) and a screw connected to the output shaft of the motor; The push rod (11) is sleeved on the outside of the screw rod and is threadedly connected.

7. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 1, characterized in that: The cavity unit comprises a first cavity (14) and a third cavity (18) opened in the outer wall of the shell (1), and a second cavity (15) opened in the connecting shaft (20), wherein the first cavity (14), the third cavity (18) and the second cavity (15) form a Z-shape that is interconnected; A sliding groove (151) that cooperates with the push rod (11) is provided on the wall of the second cavity (15); The housing (1) has an end away from the connecting shaft (20) and is provided with a third cavity opening that communicates with the third cavity (18); The connecting shaft (20) is provided with a second cavity opening at one end close to the decorative cover, the second cavity opening being in communication with the second cavity (15) and the sliding groove (151).

8. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 7, characterized in that: The driving mechanism comprises an active rod (12) and a driven rod (13) which are parallel to each other, wherein the active rod (12) and the driven rod (13) are connected to each other by a transmission rod (16), wherein the active rod (12) is arranged in a third cavity (18), the driven rod (13) is arranged in a second cavity (15), and the transmission rod (16) is arranged in a first cavity (14); The push rod (11) is sleeved on the outside of the driven rod (13) and is threadedly connected. The cross section of the push rod (11) is U-shaped.

9. The drive shaft fixing joint of the detachable wheel decorative cover according to claim 8, characterized in that: Both ends of the transmission rod (16) are provided with a third bevel gear (161); A first bevel gear (121) meshingly connected to a third bevel gear (161) is provided at one end of the active rod (12) close to the transmission rod (16); A second bevel gear (131) meshingly connected with a third bevel gear (161) is provided at one end of the driven rod (13) close to the transmission rod (16).

10. A wheel end assembly, comprising the drive shaft fixing joint of the detachable wheel decorative cover according to claims 1 to 9.

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