TWM626876U - Universal shaft center anti-drop protection device - Google Patents

Abstract

A universal shaft anti-dropping protection device is used to be installed between a steering joint of an axle of a motor vehicle and a rocker arm under the vehicle body. The joint is limited around the outer side of the lower universal shaft bearing seat at the end of the lower rocker arm, so that the universal shaft set in the lower universal shaft bearing seat and the steering joint are maintained in a pivoted state, and the protective member provides The moving distance of the rotation of the universal shaft bearing below the end of the lower rocker arm. In this way, on the basis of maintaining the normal rotation of the steering joint of the rocker arm connecting the axle under the car body, even if the universal shaft is set in the universal shaft bearing under the end of the lower rocker arm due to wear and the wheel axle When the steering joint is loose, use the protective member to surround the outer limit of the universal shaft bearing under the end of the lower rocker arm to prevent the steering of the universal shaft and the wheel shaft under the lower universal shaft bearing. The joint is disengaged, reducing the risk of motor vehicles due to the falling off of the universal shaft of the lower rocker arm.

Description

Universal shaft anti-dropping protection device

The new model relates to a universal shaft center anti-dropping protection device used in a motor vehicle to prevent the universal shaft center provided at the end of the lower rocker arm of the vehicle body from being separated from the steering joint of the wheel axle.

Existing motor vehicles can drive on rough and uneven ground and maintain necessary balance. Usually, the side of the vehicle body of the motor vehicle is connected to the steering of the axle of the wheel by using the upper rocker arm and the lower rocker arm arranged up and down oppositely, respectively, in combination with universal bearings. A shock absorber is connected between the side of the car body and the lower rocker arm located at the bottom, and the combination of the steering joint of the wheel axle and the end universal bearings of the upper and lower rocker arms is used to provide multi-directional rotation and direction change function , and with shock absorbers to provide cushioning elasticity, so that the wheels can move up and down in response to uneven ground to maintain the stability of the car body.

In the aforementioned motor vehicle, the steering joint of the axle of each wheel is connected to the upper and lower rocker arms oppositely arranged up and down on the vehicle body through two sets of universal bearings. Provide a protective mechanism against falling off to the mechanism of the steering joint of the bearing connecting the axle. In particular, the end of the lower rocker arm of the car body is provided with a universal bearing of a universal bearing, and a universal bearing is pivoted on the universal bearing. The mandrel is pivoted to the bottom of the steering joint of the wheel shaft with a universal mandrel, and the shock absorber is also connected to the lower rocker arm, so the lower rocker arm bears a heavier load, and the associated effect is set at the end of the lower rocker arm The structure of the steering joint where the universal shaft is pivoted to the axle.

In the above, when the joint between the universal shaft located under the end of the lower rocker arm and the wheel shaft is worn for a long time, the universal joint located at the end of the lower rocker The shaft is pivoted to the steering joint of the wheel shaft from bottom to top. Because the lower rocker arm is subject to gravity and the load acting on the lower rocker arm, the universal shaft set under the lower rocker arm will be released from the steering joint of the wheel shaft. while falling, once the end of the lower rocker arm When the steering joint of the universal shaft under the end and the axle is completely disengaged, it will cause danger to the motor vehicle. Based on the driving safety of the motor vehicle, it is necessary to further improve this.

The purpose of this new model is to provide an anti-dropping protection device for the universal shaft, which solves the problem that the lower universal shaft at the end of the rocker arm under the body of the existing motor vehicle will fall off from the steering joint of the wheel axle.

In order to achieve the aforementioned purpose, the present invention proposes an anti-dropping protection device for a universal shaft, which is used to be installed between the steering joint of the wheel shaft of a motor vehicle and the lower universal shaft bearing at the end of the rocker arm under the vehicle body , the lower rocker arm is pivoted under the universal shaft bearing, and the universal shaft is pivoted from bottom to top at the bottom of the steering joint; wherein: the universal shaft anti-dropping protection device includes a protective member, The guard member can be fixed on the steering joint of the wheel axle, the guard member is limited around the outer limit of the lower universal shaft bearing at the end of the lower rocker arm, and there is a provision between the guard member and the end of the lower rocker arm. The movable distance of the rotation of the lower universal shaft bearing seat enables the lower rocker arm to maintain a pivoted state between the lower universal shaft center and the steering joint of the wheel shaft provided in the lower universal shaft bearing seat. With the new type of the universal shaft center anti-dropping protection device, it can be applied between the steering joint of the wheel axle of the motor vehicle and the rocker arm under the vehicle body, wherein the protection member that can be fixed to the steering joint of the wheel axle is used to surround the The outer limit of the universal shaft bearing seat under the end of the lower rocker arm maintains the gap between the lower universal shaft center and the steering joint of the wheel shaft provided in the universal shaft bearing seat under the end of the lower rocker arm In a pivoted state, a rotation movement distance is provided between the protective member and the steering joint, where the lower universal shaft bearing of the lower rocker arm end is the lower universal shaft bearing as the rotation center. In this way, on the basis of maintaining the normal rotation of the lower rocker arm through the steering joint of the lower universal shaft pivotally connected to the wheel shaft in the lower universal bearing seat, even if the universal joint is set under the end of the lower rocker arm When the lower universal shaft in the bearing seat is loosened with the steering joint of the wheel shaft due to wear, the protective member of the universal shaft anti-dropping protection device can surround the universal shaft under the end of the lower rocker arm. The outer limit of the bearing, the lower cardan bearing maintains The original function of supporting the lower universal shaft and rotating the lower universal shaft, so as to maintain the necessary pivot between the lower universal shaft and the steering joint of the wheel shaft in the universal bearing seat of the lower rocker arm. Therefore, it can effectively prevent the lower universal shaft at the end of the lower rocker arm and the steering joint of the wheel shaft from being separated, and reduce the risk of motor vehicles falling off from the steering joint of the wheel shaft due to the universal shaft under the lower rocker arm. sex.

10: Body

11: Upper rocker arm

111: Upper universal shaft bearing

112: On the universal axis

12: Lower rocker arm

121: Lower universal shaft bearing

122: Lower universal shaft

13: Shock Absorber

20: Wheels

21: Axle

210: Steering joint

211: Upper connection end

212: Lower connection end

30A: Universal shaft anti-dropping protection device

30B: Universal shaft anti-dropping protection device

31A: Protective components

31B: Protective members

311: Guard Bar Section

312: Side Bar Section

32A: Fixed part

321A: Connection segment

322A: Locking section

32B: Fixed part

33A: Fixed part

FIG. 1 is a three-dimensional schematic diagram of a preferred embodiment of the novel universal shaft anti-dropping protection device applied between the body and the wheel of a motor vehicle.

FIG. 2 is a three-dimensional schematic view of a preferred embodiment of the novel universal shaft anti-dropping protection device shown in FIG. 1 .

FIG. 3 is a schematic side plan view of the anti-dropping protection device of the universal shaft shown in FIG. 1 applied between the body and the wheel of a motor vehicle.

FIG. 4 is a three-dimensional schematic diagram of another preferred embodiment of the novel universal shaft anti-dropping protection device applied between the vehicle body and the wheel of another motor vehicle.

FIG. 5 is a three-dimensional schematic diagram of another preferred embodiment of the novel universal shaft anti-dropping protection device shown in FIG. 4 .

FIG. 6 is a bottom perspective schematic view of another preferred embodiment of the anti-dropping protection device for the universal shaft shown in FIG. 4 applied between the body and the wheel of another motor vehicle.

FIG. 7 is a partial enlarged schematic view of FIG. 6 .

FIG. 8 is a schematic side plan view of another preferred implementation of the anti-dropping protection device for the universal shaft shown in FIGS. 4 and 6 to 8 between the vehicle body and the wheel of another motor vehicle.

As shown in FIG. 1 , FIG. 4 , and FIG. 6 , two preferred embodiments of the novel universal shaft anti-dropping protection device 30A and 30B are respectively applied to different motor vehicles. the machine The moving vehicle includes a vehicle body 10 and a wheel 20 installed on the side of the vehicle body 10 . The upper rocker arm 11 and the lower rocker arm 12 , which are arranged opposite to each other on the side of the vehicle body 10 , are respectively connected to the steering joint 210 of the axle 21 of the wheel 20 . , wherein, the end of the upper rocker arm 11 has an upper universal shaft bearing seat 111, the upper universal bearing seat 111 is pivoted with an upper universal shaft center 112, and the lower rocker arm 12 has a lower universal shaft at its end Axle bearing seat 121 , a lower universal shaft bearing seat 121 is pivoted with a universal shaft center 122 , and a universal shaft center 112 arranged on the upper rocker arm 11 and a universal shaft center 112 arranged under the lower rocker arm 12 The shaft 122 is pivoted on the upper connecting end 211 and the lower connecting end 212 of the steering joint 210 of the wheel axle 21 respectively, and a shock absorber 13 is connected between the vehicle body 10 and the lower rocker arm 12 . The universal shaft anti-dropping protection devices 30A and 30B are used for the steering joint 210 installed on the wheel shaft 21 , and at least provide protection for the universal shaft 122 pivoted under the bottom of the steering joint 210 and below the end of the rocker arm 12 . Protection against falling off.

1 , 4 and 6 can be seen from the drawings, the universal shaft center anti-dropping protection device 30A, 30B includes a protection member 31A, 31B, the protection member 31A, 31B and can be installed on the wheel axle Between the steering joint 210 of 21 and the end of the lower rocker arm 12 of the vehicle body 10, the protective members 31A, 31B are limited around the outer side of the lower universal shaft bearing 121 at the end of the lower rocker arm 12, so that the In the lower universal shaft bearing seat 121, the lower universal shaft 122 and the lower connecting end 212 of the steering joint 210 are maintained in a pivoted state, and the protective members 31A, 31B are connected to the end of the lower rocker arm 12. The lower universal shaft bearing seat 121 has a rotating movable distance, wherein, the movable distance between the guard members 31A, 31B and the lower universal bearing seat 121 in the height direction is smaller than the lower universal shaft center 122 is pivoted at the pivot length in the connecting end portion 212 under the steering joint 210 .

In the preferred embodiment shown in FIGS. 2 and 5 , the guard members 31A and 31B include a guard rod section 311 and two side rod sections 312 . The two side rod sections 312 face from both ends of the guard rod section 311 toward Extending from the same side, the two side rod segments 312 are respectively provided with a fixing portion 32A, 33A, 32B at one end away from the guard rod segment 311, as shown in FIG. 1, FIG. 3, FIG. 4, FIG. 6, FIG. The fixing parts 32A, 33A and 32B are fixed on the steering joint 210 of the wheel axle 21 in combination with the locking element.

In the preferred embodiment of the protective member 31A shown in FIG. 2 , the fixing portion 32A provided on one of the side rod sections 312 is a part bent into an L shape, and includes a connecting section 321A and A locking section 322A extends laterally from one end of the connecting section 321A, the connecting section 321A is fastened to the end of the side bar section 312 of the protective member 31A, the locking section 322A has at least one through hole, and the locking section The 322A can abut on the steering joint 210 , and use a screw as a locking element. The locking element passes through the through hole of the locking section 322A to lock the fixing portion 32A on the steering joint 210 of the axle 21 . The other fixing portion 33A provided on the other side rod section 312 is a plate-shaped member and has a through hole, and the other fixing portion 33A can abut against the steering joint 210 . The fixing portions 32A and 33A are arranged at intervals, and the other fixing portion 33A is fastened to the steering joint 210 of the axle 21 by screws.

As shown in another preferred embodiment of the protective member 31B shown in FIG. 5 , the fixing portion 32B is a loop formed by bending the end of the side rod section 312 away from the protective rod section 311 , and the loop can be sleeved The bolts are arranged on the steering joint 210 , and the nut is used as a locking element to lock the fixing portion 32B on the steering joint 210 of the axle 21 .

As shown in FIGS. 1 , 3 and 4 , and FIGS. 6 to 8 , when the novel universal shaft anti-dropping protection device 30A, 30B is applied to a motor vehicle, the universal shaft anti-dropping protection device is a 30A, 30B are fixed on the steering joint 210 of the wheel axle 21, and the protective members 31A, 31B are limited to the outside of the lower universal shaft bearing seat 121 at the end of the lower rocker arm 12 provided with the lower universal shaft 122. , so that the lower rocker arm 12 maintains a pivoted state between the lower universal shaft 122 and the steering joint 210 of the wheel axle 21 , and the end of the lower rocker arm 12 is provided between the protective members 31A, 31B and the steering joint 210 The lower universal shaft bearing seat 121 and the lower universal shaft 122 are the rotation moving distances of the rotation center.

Thereby, on the basis of maintaining the normal rotation of the lower universal shaft bearing seat 111 at the end of the lower rocker arm 12 through the lower universal shaft 122 to pivot the steering joint 210 of the wheel shaft 21, the universal shaft is protected against falling off. The devices 30A and 30B provide an anti-dropping effect to the lower universal shaft bearing 121 at the end of the lower rocker arm 12 for pivoting the lower universal shaft 122 of the steering joint 210 , even if it is provided below the end of the lower rocker arm 12 Cardan shaft When the lower universal shaft center 122 in the bearing seat 121 is loose due to wear and the connecting end 212 of the lower part of the steering joint 210 of the wheel shaft 21 is loosened, the protection members 31A and 31B of the universal shaft center anti-dropping protection devices 30A and 30B are It can provide a support function around the peripheral limit of the universal shaft bearing seat 121 under the end of the lower rocker arm 12, and the universal shaft bearing seat 121 under the end of the lower rocker arm 12 can still maintain the support of the lower universal bearing. The original function of the shaft 122 and the rotation of the lower universal shaft 122 ensures the maintenance between the lower universal shaft 122 in the universal bearing seat 121 of the lower rocker arm 12 and the steering joint 210 of the wheel shaft 21 The necessary pivoting state can effectively prevent the lower universal shaft 122 at the end of the lower rocker arm 12 and the steering joint 210 of the wheel shaft 21 from detaching, and reduce the risk of motor vehicles due to the universal shaft under the lower rocker arm 12. 122 The risk of falling off from the steering joint 210 of the axle 21.

10: Body

11: Upper rocker arm

111: Upper universal shaft bearing

12: Lower rocker arm

121: Lower universal shaft bearing

122: Lower universal shaft

13: Shock Absorber

20: Wheels

210: Steering joint

211: Upper connection end

212: Lower connection end

30A: Universal shaft anti-dropping protection device

Claims (4)

A universal shaft anti-falling protection device, which is used to be installed between the steering joint of the wheel shaft of a motor vehicle and the lower universal shaft bearing at the end of the rocker arm under the vehicle body, and the lower rocker arm is connected to the lower universal shaft. The universal shaft is pivoted from bottom to top at the bottom of the steering joint under the pivot bearing of the shaft bearing; wherein: the universal shaft anti-falling protection device includes a protection member, and the protection member can be fixed on the The steering joint of the wheel axle, the protective member is limited around the periphery of the lower universal shaft bearing at the end of the lower rocker arm, and the lower universal shaft bearing is provided between the protection member and the end of the lower rocker arm. The movable distance of rotation enables the lower rocker arm to maintain a pivoted state between the lower universal shaft provided in the lower universal shaft bearing and the steering joint of the wheel shaft. The anti-dropping protection device for a universal shaft as claimed in claim 1, wherein the protection member has a guard rod section and two side rod sections, and the two side rod sections extend from both ends of the guard rod section toward the same side , and the two side rod segments are respectively provided with a fixing portion at one end away from the guard rod segment, and the fixing portion is combined with the locking element to be fixed on the steering joint of the wheel axle. The anti-dropping protection device for a universal shaft according to claim 2, wherein the fixing portion is a part bent into an L shape, and includes a connecting section and a locking section extending laterally from one end of the connecting section The connecting section is fixed to the end of the side rod section of the protective member, the locking section has at least one perforation, and the locking section can abut on the steering joint, and the locking element is a screw , and pass through the perforation of the locking section to lock the fixing portion on the steering joint of the wheel axle. The anti-dropping protection device for the universal shaft according to claim 2, wherein the fixing portion is a ring formed by bending the end of the side rod segment away from the guard rod segment, and the ring can be sleeved On the bolt of the steering joint of the wheel axle, the locking element is a nut, and the fixing part is locked on the steering joint.

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