CN215565290U

CN215565290U - Electric tail gate stay bar assembly

Info

Publication number: CN215565290U
Application number: CN202121518265.2U
Authority: CN
Inventors: 孙云飞; 杨斌; 程鹏
Original assignee: Ningbo Huakai Electronic Technology Co ltd
Current assignee: Ningbo Huakai Electronic Technology Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-01-18
Anticipated expiration: 2031-07-05

Abstract

A power tailgate stay assembly, comprising: a cannula assembly having an extended state and a shortened state; the ball socket assemblies are arranged at two ends of the sleeve and comprise upper ball sockets connected with a vehicle body and lower ball sockets connected with a vehicle door; the driving device is used for driving the sleeve assembly to be switched between an extension state and a shortening state; a fixed housing is arranged close to the upper ball socket, a fixed adjusting fluted disc is arranged on the fixed housing, and a movable adjusting fluted disc is arranged on the upper ball socket; the movable adjusting fluted disc is disengaged or engaged with the fixed adjusting fluted disc. According to the utility model, through the matching of the movable adjusting fluted disc and the fixed adjusting fluted disc in the structure, the angle adjustment of the upper ball socket relative to the sleeve assembly (the lower ball socket) can be realized, so that the matching and combination of any angle of the upper ball socket and the lower ball socket can be realized, the universal joint can be further adapted to vehicle bodies and tail gates in various shapes, the universality is realized, and the research and development cost, the die cost and other production costs are greatly saved.

Description

Electric tail gate stay bar assembly

Technical Field

The utility model relates to the technical field of vehicle parts, in particular to an electric tail gate stay bar assembly.

Background

The electric push rod is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of the push rod. The device can be used as an execution machine in various simple or complex process flows to realize remote control, centralized control or automatic control.

Along with the development of automotive electronics and intellectuality, the user demand of people has been made things convenient for greatly, the electronic tail-gate system of car comes to life, and the user drives the switch through car key button, owner, when tail-gate external switch etc. switch is electronic opens the tail-gate, can set for the opening angle of tail-gate by oneself according to the use custom of oneself to accomplish the demand that the user loaded the goods, just so need the tail-gate and set for the opening state that a angle of hovering controlled the tail-gate according to the user custom in the angle range of design.

The electric push rod is applied to the automobile, and the electric tail gate stay bar is formed.

The automobile electric tail gate system mainly comprises an ECU, an electric stay bar and an electric suction lock. When a user wants to open the tail gate, the ECU can acquire related signals by pressing the switch button, so that an instruction is sent out to unlock, and then the electric stay bar is controlled to extend to open the tail gate. When a user wants to close the tail gate, the ECU also acquires related signals by pressing a switch button, so that an instruction is sent out to control the electric stay bar to shorten, and the tail gate is locked after the door closing action is finished. Therefore, the mechanism for providing opening and closing action for the tail gate and enabling the tail gate to hover at any angle is the electric stay bar, and whether the tail gate can hover at any angle depends on the damping force of the electric stay bar.

The existing electric stay bar is in a one-bar one-car mode, namely, an electric stay bar assembly matched with the electric stay bar assembly is specially customized according to different car bodies and tail gate shapes of various car types, so that the electric stay bar assembly cannot be generalized mutually in actual application, and in a production design link, a plurality of production costs such as required research and development costs and mould costs are high. On the other hand, in the existing electric stay bar, the speed reduction transmission between the motor and the telescopic sleeve is realized through a set of speed reducer (generally composed of a plurality of speed reduction gears), so that the structure is relatively complex, and the failure rate is higher. In addition, the existing electric stay bar is difficult to realize the semi-empty stable hovering function of the tail gate due to the larger weight of the tail gate.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides an electric tail gate stay bar assembly.

The technical scheme for solving the technical problem is as follows: an electric tailgate stay bar assembly, comprising:

a cannula assembly having an extended state and a shortened state;

the ball socket assembly is arranged at two ends of the sleeve and comprises an upper ball socket connected with a vehicle body and a lower ball socket connected with a vehicle door;

the driving device is used for driving the sleeve assembly to switch between an extension state and a shortening state;

a fixed housing is arranged close to the upper ball socket, a fixed adjusting fluted disc is arranged on the fixed housing, and a movable adjusting fluted disc is arranged on the upper ball socket; when the movable adjusting fluted disc is separated from the fixed adjusting fluted disc, the upper ball socket can rotate relative to the fixed housing to realize the relative position adjustment of the movable adjusting fluted disc and the fixed adjusting fluted disc; when the movable adjusting fluted disc is meshed with the fixed adjusting fluted disc, the upper ball socket is fixed relative to the fixed housing.

Preferably, the driving device is arranged beside the sleeve assembly and comprises a motor, a worm in transmission connection with the motor, and a reduction worm wheel meshed with the worm, wherein the reduction worm wheel is in transmission connection with the sleeve assembly.

Preferably, the driving device further comprises a first bearing sleeved on the worm and a stop member acting on the first bearing.

Preferably, the sleeve assembly comprises a rotary screw rod, a screw rod sleeve which is driven by the rotary screw rod and can move relative to the rotary screw rod, and a tension spring, wherein one end of the rotary screw rod is in transmission connection with the driving device, and the lower ball socket is connected with the screw rod sleeve.

Preferably, one end of the rotary screw rod is connected with the reduction worm gear through a gear pin so that the reduction worm gear is kept in a suspended state.

Preferably, the gear pin has an internal tooth groove and an external tooth end surface, the internal tooth groove is engaged with the rotary screw, and the external tooth end surface is engaged with the reduction worm wheel.

Preferably, the tension spring device further comprises an upper tension spring support and a lower tension spring support, wherein the upper tension spring support and the lower tension spring support are respectively provided with a threaded tension spring groove matched with the tension spring, the upper tension spring support is connected with the rotating screw rod through a second bearing and is opposite to the fixed housing, and the lower tension spring support is sleeved on the screw rod sleeve and can move relative to the fixed housing.

Preferably, the gear shifting device further comprises a shifting fork, one end of the shifting fork is sleeved with a damper and connected with the upper ball socket through a third bearing, and the other end of the shifting fork is connected with the reduction worm gear.

Preferably, a plurality of transmission grooves are uniformly distributed on the speed reducing worm wheel, a plurality of transmission blocks are arranged on one side, close to the speed reducing worm wheel, of the shifting fork, and the transmission blocks are inserted in the transmission grooves.

Preferably, the device also comprises a decorative cover, wherein the decorative cover is connected with the fixed cover and covers the movable adjusting fluted disc and the fixed adjusting fluted disc.

The utility model has the beneficial effects that:

1. through the cooperation of movable regulation fluted disc and fixed regulation fluted disc in above-mentioned structure, can realize going up the angular adjustment of the relative thimble assembly of ball socket (ball socket down) to realized the collocation combination of the arbitrary angle of ball socket from top to bottom, and then can the various shapes of adaptation automobile body and tail-gate, accomplished the commonality, saved numerous manufacturing cost such as research and development cost, mould cost greatly.

2. The lateral installation of the driving device is realized, the device is different from the traditional coaxial arrangement, the space required by installation is shortened, and the device can be used for a car trunk with limited axial space; the torque of the speed reducing motor is transmitted through the worm gear and the worm, and the structure is simpler and more compact.

3. The transmission structure of the worm gear and the worm has reverse self-locking force, so that the tail gate can be continuously and stably kept in a hovering position.

4. The reduction worm wheel is arranged in a suspended mode, and further the axial outer end face of the reduction worm wheel is not in contact with other parts (the fixed housing and the upper ball socket), so that the reduction worm wheel can run more stably and reliably.

5. Through the arrangement and the use of the shifting fork, the externally hung damper can directly play a role in buffering the speed reduction worm wheel, and further play a role in buffering and protecting the operation of accessories such as a sleeve assembly, a worm and the like; on the other hand, the whole assembly can run more stably and quietly, the overall reliability is improved, and the service life is greatly prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a sectional view taken along the line a-a in fig. 1.

Fig. 3 is a schematic view of another embodiment of the present invention.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

Fig. 5 is an exploded view of the present invention.

Fig. 6 is a partial exploded view of the upper ball and socket structure of the present invention.

Fig. 7 is a partial exploded view of the lower ball and socket structure of the present invention.

Fig. 8 is a structural schematic view of the gear pin.

Fig. 9 is a schematic view of the structure of the shift fork and the reduction worm wheel.

FIG. 10 is a schematic view of the movable adjusting toothed disc engaging with the fixed adjusting toothed disc.

FIG. 11 is a schematic view of the movable adjusting cog shown disengaged from the fixed adjusting cog.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 11, a basic structure of an electric tailgate stay bar assembly is substantially as follows: a cannula assembly 1 having an extended state and a shortened state; the ball socket assembly is arranged at two ends of the sleeve and comprises an upper ball socket 2 connected with a vehicle body and a lower ball socket 3 connected with a vehicle door; a driving device 4 for driving the sleeve assembly 1 to switch between the extended state and the shortened state. The driving device 4 is controlled by the vehicle ECU to realize the start or stop function. Compared with the prior art, the utility model is characterized in that: a fixed housing 5 is arranged close to the upper ball socket 2, a fixed adjusting fluted disc 6 is arranged on the fixed housing 5, and a movable adjusting fluted disc 7 is arranged on the upper ball socket 2; when the movable adjusting fluted disc 7 is separated from the fixed adjusting fluted disc 6, the upper ball socket 2 can rotate relative to the fixed housing 5 to realize the relative position adjustment of the two; when the movable adjusting fluted disc 7 is meshed with the fixed adjusting fluted disc 6, the upper ball socket 2 is fixed relative to the fixed housing 5. Through the cooperation of movable regulation fluted disc 7 and fixed regulation fluted disc 6 in above-mentioned structure, can realize going up the angular adjustment of the relative sleeve subassembly 1 of ball socket 2 (ball socket 3 down) to realized the collocation combination of the arbitrary angle of ball socket 3 from top to bottom, and then can adapt the automobile body and the tail-gate of various shapes, accomplished the commonality, saved numerous manufacturing cost such as research and development cost, mould cost greatly.

Preferably, the driving device 4 is disposed beside the sleeve assembly 1, and the driving device 4 includes a motor 10, a worm 11 in transmission connection with the motor 10, and a reduction worm wheel 12 engaged with the worm 11, wherein the reduction worm wheel 12 is in transmission connection with the sleeve assembly. By adopting the preferable structure, firstly, the lateral installation of the driving device 4 is realized, so that the overall length of the electric tail gate stay bar assembly is reduced, and the requirement on installation space and the installation difficulty are reduced; secondly, the transmission combination of the worm 11 and the reduction worm wheel 12 is adopted, so that the dual functions of transmission reversing and transmission reducing can be achieved, and the use requirements of lateral installation are met.

In this embodiment, the driving device 4 further includes a first bearing 13 disposed on the worm 11 and a stop member 14 acting on the first bearing 13. Through the arrangement of the first bearing 13, the effects of supporting the worm 11, reducing the friction coefficient in the movement process of the worm 11 and ensuring the rotation precision of the worm are achieved. On the other hand, the stop member 14 is preferably a stop washer, which is fixed to the motor housing 9 when installed, so that its position is relatively stable, and can play a role of preventing the first bearing 13 from moving toward the end where the motor 10 is located, so as to ensure that the first bearing 13 is always in an effective working position.

The other core component sleeve assembly 1 has the following specific structure: the ball socket comprises a rotary screw rod 15, a screw rod sleeve 16 and a tension spring 17, wherein the screw rod sleeve 16 is driven by the rotary screw rod 15 and can move relative to the rotary screw rod 15, one end of the rotary screw rod 15 is in transmission connection with the driving device 4, and the lower ball socket 3 is connected with the screw rod sleeve 16. The above-mentioned sleeve assembly 1 is similar to the prior art, and the working principle thereof is not described in detail herein.

The special point is that one end of the rotating wire 15 in this embodiment is connected with the reduction worm gear 12 through the gear pin 18 and keeps the reduction worm gear 12 in a suspended state. The gear pin 18 plays a role in transmission, and also can play a role in supporting so that the reduction worm gear 12 is suspended, and further the axial outer end face of the reduction worm gear 12 is not in contact with other parts (the fixed housing 5 and the upper ball socket 2), so that the reduction worm gear 12 can operate more stably and reliably.

Preferably, the gear pin 18 has an internal tooth groove 19 and an external tooth end surface 20, the internal tooth groove 19 is engaged with the rotary screw 15, and the external tooth end surface 20 is engaged with the reduction worm wheel 12. The tooth-shaped matching mode is adopted, so that the slipping condition can not occur during the transmission of related parts, the damaged condition of mutual friction can be effectively reduced, and the reliability of the transmission is ensured.

In order to realize the installation and the use of the tension spring 17, the tension spring device further comprises an upper tension spring support 21 and a lower tension spring support 22 in the embodiment, the upper tension spring support 21 and the lower tension spring support 22 are respectively provided with a threaded tension spring groove 23 matched with the tension spring 17, the upper tension spring support 21 is connected with the rotary screw rod 15 through a second bearing 24 and is opposite to the fixed housing 5 and is static, and the lower tension spring support 22 is sleeved on the screw rod sleeve 16 and can move relative to the fixed housing 5. Through the arrangement of the threaded tension spring groove 23, the position in the non-telescopic direction is prevented from occurring in the telescopic motion process of the tension spring 17 due to the shape matching of the tension spring.

Because electronic tail-gate vaulting pole assembly need carry out concertina movement constantly in the use, lead to the fact not little impact force to each spare part, if do not cushion, these spare parts will appear coordinating badly after using a period, and self is changeed impairedly, and then lead to whole not smooth condition of use to take place. In order to solve the above-mentioned defects, a fork 25 is further included, one end of the fork 25 is sleeved with a damper 26 and is connected with the upper ball socket 2 through a third bearing 29, and the other end of the fork 25 is connected with the reduction worm gear 12. Preferably, a plurality of transmission grooves 27 are uniformly distributed on the reduction worm wheel 12, a plurality of transmission blocks 28 are arranged on one side of the shifting fork 25 close to the reduction worm wheel 12, and the transmission blocks 28 are inserted in the transmission grooves 27. Through the arrangement and the use of the shifting fork 25 with a special shape, the externally hung damper 26 can directly play a role in buffering the reduction worm wheel 12, and further play a role in buffering and protecting the operation of accessories such as the sleeve assembly 1, the worm 11 and the like. On the other hand, the whole assembly can run more stably and quietly, the overall reliability is improved, and the service life is greatly prolonged.

The utility model also comprises a decorative cover 8, wherein the decorative cover 8 is connected with the fixed cover 5 and covers the movable adjusting fluted disc 7 and the fixed adjusting fluted disc 6. The setting of decorating housing 8 firstly can play the decoration effect, secondly plays the installation fixed action of relevant part, and thirdly can play the guard action including movable regulation fluted disc 7 and the cladding of fixed regulation fluted disc 6.

The working principle of the utility model is that an upper ball socket 2 is arranged on a vehicle body, a lower ball socket 3 is arranged on a tail gate, a motor 10 is started by a vehicle ECU, the motor 10 drives a reduction worm gear 12 to rotate through a worm 11, the reduction worm gear 12 drives a transmission screw rod 15, so that a screw rod sleeve 16 sleeved on the rotation screw rod 15 realizes telescopic motion, and the functions of opening, closing, hovering and the like of the tail gate are further realized.

In the present invention, the upper ball socket 2 may be attached to the tailgate, and the lower ball socket 3 may be attached to the vehicle body, but is not particularly limited thereto.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An electric tailgate stay bar assembly, comprising:

a cannula assembly having an extended state and a shortened state;

the method is characterized in that: a fixed housing is arranged close to the upper ball socket, a fixed adjusting fluted disc is arranged on the fixed housing, and a movable adjusting fluted disc is arranged on the upper ball socket; when the movable adjusting fluted disc is separated from the fixed adjusting fluted disc, the upper ball socket can rotate relative to the fixed housing to realize the adjustment of the relative positions of the movable adjusting fluted disc and the fixed adjusting fluted disc; when the movable adjusting fluted disc is meshed with the fixed adjusting fluted disc, the upper ball socket is fixed relative to the fixed housing.

2. The power tailgate stay assembly, according to claim 1, wherein: the driving device is arranged at the side of the sleeve assembly and comprises a motor, a worm connected with the motor in a transmission way and a reduction worm wheel meshed with the worm, and the reduction worm wheel is connected with the sleeve assembly in a transmission way.

3. The power tailgate stay assembly, according to claim 2, wherein: the driving device also comprises a first bearing sleeved on the worm and a stop piece acting on the first bearing.

4. The power tailgate stay assembly, according to claim 2, wherein: the sleeve assembly comprises a rotary screw rod, a screw rod sleeve which is driven by the rotary screw rod and can move relative to the rotary screw rod, and a tension spring, wherein one end of the rotary screw rod is in transmission connection with the driving device, and the lower ball socket is connected with the screw rod sleeve.

5. The power tailgate stay assembly, according to claim 4, wherein: one end of the rotating screw rod is connected with the reduction worm gear through a gear pin, so that the reduction worm gear is kept in a suspended state.

6. The power tailgate stay assembly, according to claim 5, wherein: the gear pin has an internal tooth groove and an external tooth shape end face, the internal tooth groove is matched with the rotating screw rod, and the external tooth shape end face is matched with the speed reduction worm wheel.

7. The power tailgate stay assembly, according to claim 4, wherein: the upper tension spring support and the lower tension spring support are provided with threaded tension spring grooves matched with the tension springs, the upper tension spring support is connected with the rotating screw rod through a second bearing and is opposite to the fixed housing, and the lower tension spring support is sleeved on the screw rod sleeve and can be opposite to the fixed housing to move.

8. The power tailgate stay assembly, according to claim 2, wherein: the gear shifting device is characterized by further comprising a shifting fork, one end of the shifting fork is sleeved with a damper and connected with the upper ball socket through a third bearing, and the other end of the shifting fork is connected with the speed reduction worm gear.

9. The power tailgate stay assembly, according to claim 8, wherein: the speed reducing worm gear is evenly provided with a plurality of transmission grooves, one side of the shifting fork close to the speed reducing worm gear is provided with a plurality of transmission blocks, and the transmission blocks are inserted in the transmission grooves.

10. The power tailgate stay assembly according to any of claims 1-9 wherein: the movable adjusting fluted disc and the fixed adjusting fluted disc are connected with the fixed cover shell through a connecting rod.