CN213015919U

CN213015919U - Electric stay bar of vehicle tail gate and vehicle

Info

Publication number: CN213015919U
Application number: CN202021577726.9U
Authority: CN
Inventors: 卢衍超; 廖文辉; 陈润林; 邱帆
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-20
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to an electronic vaulting pole and vehicle of vehicle tail-gate, electronic vaulting pole includes lead screw (2), motor element and worm gear reduction gearing, motor element includes motor (5), motor (5) are passed through worm gear reduction gearing with lead screw (2) transmission is connected, in order to drive lead screw (2) rotate around self axis. Through above-mentioned technical scheme, the electronic vaulting pole of vehicle tail-gate that this disclosure provided has effectively solved the planet speed reduction drive mechanism that exists among the prior art with high costs and the operation sound pressure level is big, easily produces the problem of abnormal sound.

Description

Electric stay bar of vehicle tail gate and vehicle

Technical Field

The utility model relates to an automobile tail-gate technical field specifically relates to an electronic vaulting pole and vehicle of vehicle tail-gate.

Background

The tail gate bracing piece is an important part for opening and closing the automobile tail gate, and the electric tail gate can realize the automatic opening and closing of the automobile tail gate by controlling the extension and retraction of the tail gate bracing piece through the motor, so that the electric tail gate is widely welcomed by people.

The existing electric stay bar usually adopts a U-shaped stay bar, wherein a motor generally transmits power to a screw rod of the electric stay bar through a speed reducing mechanism, however, the speed reducing mechanism usually adopts a planetary speed reducing transmission mechanism, the cost is high, a gear transmission structure comprising 3 gears is needed, and the sound pressure level is high when the structure operates, and abnormal sound is easily generated.

SUMMERY OF THE UTILITY MODEL

The electric support rod of the vehicle tail gate effectively solves the problems that a planetary reduction transmission mechanism in the prior art is high in cost, large in sound pressure level during operation and prone to generating abnormal sound.

In order to achieve the above object, the present disclosure provides an electric stay bar of a vehicle tail gate, the electric stay bar includes a screw rod, a motor assembly and a worm and gear reduction transmission mechanism, the motor assembly includes a motor, the motor passes through the worm and gear reduction transmission mechanism with the screw rod transmission is connected, so as to drive the screw rod to rotate around its axis.

Optionally, the worm gear and worm reduction transmission mechanism comprises a worm gear and a worm which are matched with each other, the worm gear is coaxially connected to the first end of the screw rod, the worm is coaxially connected to the output shaft of the motor, and the axial direction of the worm and the axial direction of the screw rod form an angle.

Optionally, the electric strut includes a housing having a first sleeve portion, a second sleeve portion, a first motor housing portion and a second motor housing portion, the first sleeve portion and the second sleeve portion being separately molded and coaxially connected, the first end of the lead screw passing through the first sleeve portion and being supported in the first sleeve portion, the first motor housing portion and the second motor housing portion being connected to receive a body of rotation structure of the motor assembly.

Optionally, the housing comprises an integrally formed first shell comprising the first sleeve portion and the first motor housing portion; the housing comprises an integrally formed second shell comprising the second sleeve portion and the second motor housing portion; wherein the first sleeve portion is removably coupled to the second sleeve portion and the first motor housing portion is removably coupled to the second motor housing portion.

Optionally, the worm wheel is supported in the second bushing part and is configured with a central blind hole, into which the end of the first end of the spindle is inserted and connected.

Optionally, the electric stay bar includes a damper, the damper is disposed in the first shaft sleeve portion through a rotational positioning structure, and the first end of the lead screw is disposed through the damper.

Optionally, the screw is provided with a seal within the first sleeve portion, the seal being provided on a side remote from the second sleeve portion and providing a seal between the screw and the first sleeve portion.

Optionally, the motorized strut comprises a first ball socket disposed at the second bushing portion; the first ball and socket is integrally formed with the second sleeve portion, or the first ball and socket is separately formed from the second sleeve portion and detachably connected to the second sleeve portion by a first connector.

Optionally, the electric stay bar comprises a swing-proof bracket, the swing-proof bracket is connected to the second shaft sleeve portion and is formed with a first through hole coaxially arranged with the first mounting hole of the first ball socket, and a first swing-proof rubber sleeve is mounted in the first through hole.

Optionally, the electric stay bar comprises a guide sleeve, a second ball socket and a second ball socket, the guide sleeve is in threaded fit connection with the screw rod to achieve expansion and contraction of the electric stay bar, the second ball socket is fixedly arranged at one end of the guide sleeve far away from the screw rod, wherein the second ball socket is integrally formed or fixedly connected with the second ball socket, or the second ball socket is separately formed with the second ball socket and is detachably connected to the second ball socket through a second connecting piece, and the second connecting piece is in clearance fit with the second ball socket to allow the second ball socket to freely rotate around the central axis of the electric stay bar.

Optionally, the electric stay comprises a support spring, the support spring is sleeved on the screw rod and the guide sleeve, and one end of the support spring abuts against the first sleeve part, and the other end of the support spring abuts against the second ball socket.

Optionally, the axial direction of the worm is perpendicular to the axial direction of the screw rod.

On the basis of the scheme, the disclosure further provides a vehicle, and the vehicle comprises the electric stay bar of the vehicle tail gate.

Through above-mentioned technical scheme, in the electronic vaulting pole of vehicle tail-gate that this disclosure provided, the motor passes through worm gear speed reduction drive mechanism drive lead screw and rotates around self axis, here, replaces the planet speed reduction drive mechanism among the electronic vaulting pole among the prior art to provide speed reduction function and transmission function through worm gear speed reduction drive mechanism, like this, not only can reduce the inherent length of electronic vaulting pole, can also effectively solve the reducing gear box that exists among the prior art when the operation sound pressure level is big, the problem of the abnormal sound of easily producing.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a power strut of a vehicle tailgate provided in accordance with a first embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a power strut of a vehicle tailgate provided in accordance with a first embodiment of the present disclosure;

FIG. 3 is another cross-sectional view of the power strut of the vehicle tailgate provided in accordance with a first embodiment of the present disclosure, wherein the motor is shown;

FIG. 4 is an enlarged view of a portion of FIG. 2 at position A;

FIG. 5 is a partial enlarged view of the location B in FIG. 2;

FIG. 6 is an enlarged partial view of the location C of FIG. 3;

fig. 7 is a perspective view of a first ball socket and a swing prevention bracket in a coupled state in an electric stay of a tailgate of a vehicle according to a first embodiment of the present disclosure;

fig. 8 is a sectional view of a first ball socket and a swing prevention bracket in a coupled state in a power stay of a tailgate of a vehicle provided in accordance with a first embodiment of the present disclosure;

fig. 9 is a schematic perspective view of a swing preventing bracket in a power stay of a tailgate of a vehicle according to a first embodiment of the present disclosure;

FIG. 10 is a cross-sectional view of a power strut of a vehicle tailgate provided in accordance with a second embodiment of the present disclosure;

FIG. 11 is an enlarged view of a portion of FIG. 10 at position D;

fig. 12 is a perspective view of a first ball socket and a swing prevention bracket in a state of being connected in an electric stay of a tailgate of a vehicle according to a second embodiment of the present disclosure;

fig. 13 is a sectional view of a first ball socket and a swing prevention bracket in a coupled state in a power stay of a tailgate of a vehicle provided in accordance with a second embodiment of the present disclosure;

fig. 14 is a schematic perspective view of a swing preventing bracket in a power stay of a tailgate of a vehicle according to a second embodiment of the present disclosure;

FIG. 15 is a cross-sectional view of a power strut of a vehicle tailgate provided in accordance with a third embodiment of the present disclosure;

FIG. 16 is an enlarged partial view taken at position E in FIG. 15;

FIG. 17 is an exploded view of a second ball and socket in the power strut of the tailgate of the vehicle provided in accordance with a third embodiment of the present disclosure;

fig. 18 is a schematic structural view of a motor, a worm wheel and a worm in a connected state in an electric stay of a vehicle tailgate provided according to first, second and third embodiments of the present disclosure;

FIG. 19 is a cross-sectional view of a power strut of a vehicle tailgate provided in accordance with a fourth embodiment of the present disclosure;

FIG. 20 is an enlarged fragmentary view taken at position F in FIG. 19;

fig. 21 is a schematic structural diagram of a motor, a worm wheel and a worm in a connected state in an electric stay of a vehicle tail gate according to a fourth embodiment of the present disclosure.

Description of the reference numerals

1-a housing; 11-a first housing; 111-a first sleeve portion; 112-a first motor housing portion; 12-a second housing; 121-second bushing part; 122-a second motor housing portion;

2-a screw rod; 21-a limit piece;

3-a support spring;

4-a guide pipe sleeve; 41-a coupling assembly;

5, a motor; 51-damping rubber sleeve;

61-worm; 62-a worm gear;

71-a first bearing; 711-clamp spring; 712-a gasket; 72-a second bearing;

8-a seal;

9-a damper; 91-projection;

20-a first socket; 201-a first socket body; 2011-first mounting hole; 202-a first ball-and-socket seat; 2021-a limiting groove; 203-a first connector;

30-a second ball and socket; 301-a second socket body; 3011-an inlay; 302-a second ball-and-socket mount; 3021-connecting the sleeve portion; 3022-flanges; 303-a second connector; 304-a spacing washer;

40-a swing prevention bracket; 401 — a first via; 402-a first anti-swing rubber sleeve; 4021-a rubber sleeve mounting hole; 403-a support plate; 404-a substrate; 405-a via; 406-positioning elements.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means that the components themselves are inside and outside of the relative profile, unless otherwise stated. In addition, the terms "first and second" are used for convenience in distinguishing one element from another, and do not have any order or importance. Moreover, the following description refers to the accompanying drawings, in which like reference numerals refer to the same or similar elements throughout the different views, and the disclosure will not be described in detail.

According to the specific embodiment of the present disclosure, an electric stay bar of a vehicle tail gate is provided, and as shown in fig. 1 to 21, the electric stay bar includes a screw rod 2, a motor assembly and a worm and gear reduction transmission mechanism, the motor assembly includes a motor 5, and the motor 5 is in transmission connection with the screw rod 2 through the worm and gear reduction transmission mechanism to drive the screw rod 2 to rotate around its axis.

Through the technical scheme, in the electronic vaulting pole of vehicle tail-gate that this disclosure provided, motor 5 passes through worm gear speed reduction drive mechanism drive lead screw 2 and rotates around self axis, here, replaces the planet speed reduction drive mechanism among the electronic vaulting pole among the prior art to provide speed reduction function and transmission function through worm gear speed reduction drive mechanism, like this, not only can reduce the inherent length of electronic vaulting pole, can also effectively solve the reducing gear box that exists among the prior art when the operation sound pressure level is big, the problem of the easy abnormal sound that produces.

In the specific embodiment provided by the present disclosure, referring to fig. 3, 6, 18 and 21, the worm and gear reduction transmission mechanism may include a worm wheel 62 and a worm 61 which are matched with each other, the worm wheel 62 is coaxially connected to the first end of the screw rod 2, the worm 61 is coaxially connected to the output shaft of the motor 5, wherein the axial direction of the worm 61 forms an angle with the axial direction of the screw rod 2, the motor 5 drives the screw rod 2 to rotate around its axis through the worm 61 and the worm wheel 62 in sequence, the axial direction of the worm 61 forms an angle with the axial direction of the screw rod 2, that is, the installation positions of the worm 61 and the motor 5 in the electric stay are both formed an angle with the axial direction of the screw rod 2, which can reduce the inherent length of the electric stay, thereby being beneficial.

In the specific embodiments provided by the present disclosure, the motorized brace may include a housing 1, wherein the housing 1 may be configured in any suitable manner. Alternatively, as shown in fig. 1 to 4, 10, 11, 15, 19, and 21, the housing 1 may have a first boss portion 111, a second boss portion 121, a first motor housing portion 112, and a second motor housing portion 122, the first boss portion 111 and the second boss portion 121 being separately formed and coaxially connected, a first end of the lead screw 2 passing through the first boss portion 111 and being supported in the first boss portion 111, the first motor housing portion 112 and the second motor housing portion 122 being connected as a rotor structure accommodating the motor assembly. In other embodiments of the present disclosure, the housing 1 may have other configurations, and the present disclosure is not limited thereto.

In which the first end of the screw 2 is supported by the first bearing 71 in the first sleeve portion 111, it should be noted that there are various ways of fixing the first bearing 71 on the screw 2, for example, as shown in fig. 4, 11 and 15, a groove is provided in the first sleeve portion 111, and the first bearing 71 is provided on the screw 2 and an end surface facing one end of the first ball socket 20 described below is stopped by the snap spring 711 so that the first bearing 71 is accommodated in the groove. Alternatively, as shown in fig. 20, the first bearing 71 is provided on the screw 2 and the end surface facing one end of the first ball socket 20 is stopped by the circlip 711 and the end surface facing one end of the second ball socket 30 described below is stopped by a washer 712. The present disclosure is not limited thereto, and those skilled in the art can set the setting according to actual needs.

In the embodiments provided by the present disclosure, referring to fig. 1 to 4, 10, 11, 15, 19 and 21, the outer shell 1 includes an integrally formed first housing 11, the first housing 11 includes a first boss portion 111 and a first motor housing portion 112, i.e., the first boss portion 111 and the first motor housing portion 112 together form the integrally formed first housing 11; the outer shell 1 comprises an integrally formed second housing 12, the second housing 12 comprising a second sleeve portion 121 and a second motor housing portion 122, i.e. the second sleeve portion 121 and the second motor housing portion 122 together form the integrally formed second housing 12; wherein the first sleeve portion 111 is detachably connected to the second sleeve portion 121, and the first motor housing portion 112 is detachably connected to the second motor housing portion 122, so as to facilitate mounting of the motor 5 provided to the housing 1, the worm reduction gear, and support of the first end of the lead screw 2.

In the specific embodiment provided by the present disclosure, referring to fig. 4, 11, 15, 19 and 20, the worm wheel 62 may be supported in the second sleeve portion 121 and configured with a central blind hole, an end of the first end of the screw rod 2 is inserted and connected into the central blind hole, the worm wheel 62 is connected with an end of the first end of the screw rod 2 at an end facing the screw rod 2, the worm wheel 62 is supported by the second bearing 72 at an end facing the second sleeve portion 121, the worm 61 is driven to rotate by the output shaft of the motor 5, and the worm wheel 62 drives the screw rod 2 to rotate around its axis, and further drives the electric stay to extend or retract, so as to support the vehicle tail gate.

In the specific embodiment provided by the present disclosure, referring to fig. 19 to 21, the electric stay may include a damper 9, the damper 9 is disposed in the first bushing portion 111 through a rotational positioning structure, the first end of the lead screw 2 is disposed through the damper 9, and the disposition of the damper 9 can provide beneficial motion damping for supporting the tailgate of the vehicle, so that the performance of the electric stay of the tailgate of the vehicle can be optimized to enable full-angle hovering when the tailgate is opened. Wherein the rotational positioning structure may be configured in any suitable manner, alternatively, as shown in fig. 21, the rotational positioning structure may include a projection 91 provided on the outer peripheral surface of the damper 9 and a groove provided on the inner wall of the first boss portion 111, the projection 91 and the groove cooperating with each other to dispose the damper 9 in the first boss portion 111. In other embodiments of the present disclosure, the damper 9 may be configured in other ways, and the present disclosure is not limited thereto. In addition, it should be noted that the damper 9 is a well-known component, and the detailed structure and operation principle thereof are not described herein.

In the specific embodiment provided by the present disclosure, referring to fig. 4, 11, 15 and 20, the screw rod 2 is provided with a sealing member 8 in the first sleeve portion 111, the sealing member 8 is disposed on a side away from the second sleeve portion 121 and provides a seal between the screw rod 2 and the first sleeve portion 111, wherein, referring to fig. 4, 11 and 15, the sealing member 8 is disposed on a side of the first bearing 71 away from the second sleeve portion 121 and provides a seal between the screw rod 2 and the first sleeve portion 111, so as to play a role of waterproof and dustproof, thereby ensuring normal operation among the motor 5, the worm and gear reduction transmission mechanism and the screw rod 2. Referring to fig. 20, the sealing member 8 is disposed on a side of the damper 9 away from the second sleeve portion 121 and provides a seal between the screw rod 2 and the first sleeve portion 111, so as to achieve waterproof and dustproof functions, thereby ensuring normal operation among the motor 5, the worm and gear reduction transmission mechanism, and the screw rod 2.

In the embodiments provided by the present disclosure, as shown with reference to fig. 7 to 9 and 12 to 14, the electric stay may include a first ball socket 20, and the first ball socket 20 is provided to the second bushing portion 121.

Wherein the first ball socket 20 and the second sleeve portion 121 may be configured in any suitable manner to achieve a connection therebetween. Alternatively, referring to fig. 7 to 9, the first ball socket 20 is integrally formed with the second bushing portion 121, wherein the first ball socket 20 includes a first socket body 201 and a first socket holder 202, the first socket body 201 and the first socket holder 202 are integrally formed, and the first ball socket 20 is integrally formed with the second bushing portion 121. Alternatively, as shown in fig. 12 to 14, the first ball socket 20 is formed separately from the second socket part 121 and detachably connected to the second socket part 121 by a first connector 203, wherein the first ball socket 20 includes a first ball socket body 201 and a first ball support 202, the first ball support 202 is formed integrally with the second socket part 121, and the first connector 203 is connected to the first ball socket body 201 through the first ball support 202, so that the first ball socket body 201 and the first ball support 202 are connected to form the first ball socket 20. In other embodiments of the present disclosure, the first ball socket 20 may be disposed in other ways, and the present disclosure is not limited thereto.

In the specific embodiment provided by the present disclosure, as shown in fig. 7 to 9 and 12 to 14, the electric stay may include a swing prevention bracket 40, the swing prevention bracket 40 being connected to the second bushing part 121 and being formed with a first through hole 401 coaxially disposed with the first mounting hole 2011 of the first ball socket 20, and a first swing prevention packing 402 being mounted in the first through hole 401. The first anti-swing rubber sleeve 402 is arranged in the first through hole 401 and is provided with a rubber sleeve mounting hole 4021 through which a fastener passes, the first through hole 401 of the anti-swing bracket 40 is coaxially arranged with the first mounting hole 2011 of the first ball socket 20, and then the fastener simultaneously passes through the rubber sleeve mounting hole 4021 on the anti-swing bracket 40 and the first mounting hole 2011 on the first ball socket 20 and is connected to a vehicle tail door or a vehicle body. Like this, when the vehicle in-process or the switching of vehicle tail-gate, the setting of anti-swing support 40 can prevent that electronic vaulting pole from rocking to guarantee the performance of electronic vaulting pole.

The anti-sway brace 40 may be configured in any suitable manner, among others. Alternatively, referring to fig. 7 to 9, the anti-swing bracket 40 includes a support plate 403 and a base plate 404 connected to each other, the base plate 404 is provided with a through hole 405 for avoiding the first ball socket body 201 and is provided with a plurality of positioning members 406 on an end surface facing one end of the first ball socket 202, the base plate 404 is sleeved on the first ball socket 202 and enables the positioning members 406 to be matched with the corresponding limiting grooves 2021 on the first ball socket 202, the first through hole 401 provided on the support plate 403 is coaxially arranged with the first mounting hole 2011, the first anti-swing rubber sleeve 402 is provided in the first through hole 401 and has a rubber sleeve mounting hole 4021 through which a fastener passes, so that the anti-swing bracket 40 is mounted on the first ball socket 20 and the first through hole 401 is coaxially arranged with the first mounting hole 2011. Referring to fig. 12 to 14, the anti-swing bracket 40 includes a support plate 403 and a base plate 404 connected to each other, the base plate 404 is provided with a through hole 405 for avoiding the first connector 203 and a positioning member 406 on an end surface facing one end of the first ball socket 202, the base plate 404 is disposed between the first ball socket body 201 and the first ball socket 202, the first connector 203 is connected to the first ball socket body 201 through the first ball socket 202 and the base plate 404 in this order, and the first through hole 401 disposed on the support plate 403 is disposed coaxially with the first mounting hole 2011, the first anti-swing rubber sleeve 402 is disposed in the first through hole 401 and has a rubber sleeve mounting hole 4021 through which a fastener passes, so that the anti-swing bracket 40 is mounted to the first ball socket 40 and the first through hole 401 is disposed coaxially with the first mounting hole 2011. In other embodiments of the present disclosure, the swing-proof bracket 40 may have other configurations, and the present disclosure is not limited thereto.

In the specific embodiment provided by the present disclosure, referring to fig. 2, 5, 10, 15, 16 and 19, the electric strut may include a guide sleeve 4, a second ball socket holder 302 and a second ball socket 30, the guide sleeve 4 is in screw-fit connection with the screw rod 2 to achieve the extension and retraction of the electric strut, wherein the second end of the screw rod 2 is movably connected to the guide sleeve 4 through a coupling assembly 41, wherein the coupling assembly 8 is fixedly mounted at one end of the guide sleeve 4 facing the first ball socket 20 and is connected with the screw rod 2 through a non-self-locking type screw structure, the second end of the screw rod 2 extends into the guide sleeve 4 and is provided with a limiting member 21 at an end of the second end, the limiting member 21 limits the second end in the guide sleeve 4, so that the screw rod 2 can axially move relative to the guide sleeve 4 under the driving of the worm wheel 62 to drive the electric strut to extend or retract, thereby being capable of supporting the vehicle tailgate.

As shown in fig. 5 and 16, the second ball socket 30 is fixedly arranged at one end of the guide sleeve 4 far away from the screw rod 2. The second socket 30 may be configured in any suitable manner. Alternatively, the second ball socket 30 is integrally formed or fixedly connected with the second ball socket support 302, wherein, referring to fig. 5, the second ball socket 30 comprises a second ball socket body 301 and a second ball socket support 302, the second ball socket body 301 is integrally formed with the second ball socket support 302, and the second ball socket body 302 is sleeved and screwed with the guide sleeve 4. In addition, the second ball socket 30 may be fixedly connected with the second ball socket holder 302, i.e., the second ball socket body 301 and the second ball socket holder 302 are connected together by a fastener.

Alternatively, as shown in fig. 16, the second ball socket 30 is formed separately from the second ball socket 302 and detachably connected to the second ball socket 302 by a second connector 303, the second connector is in clearance fit with the second ball socket 302 to allow the second ball socket 30 to freely rotate around the central axis of the electric strut, wherein the second ball socket 30 includes a second ball socket body 301, a second ball socket 302, a second connector 303 and a spacing washer 304, the second connector 303 sequentially passes through the second ball socket 302 and the spacing washer 304 and is in threaded connection with the insert 3011 on the second ball socket body 301, wherein the second connector 303 is in clearance fit with the second ball socket 302 to allow the second ball socket 30 to freely rotate around the central axis of the electric strut, thereby adjusting the rotation direction of the second ball socket 30 and further connecting with the vehicle body or the vehicle tail gate. In other embodiments of the present disclosure, the second ball socket 30 may have other configurations, and the present disclosure is not limited thereto.

In the specific embodiment provided by the present disclosure, referring to fig. 2, 10, 15 and 19, the electric stay may include a support spring 3, the support spring 3 is sleeved on the screw rod 2 and the guide sleeve 4, and one end of the support spring abuts against the first sleeve portion 111 and the other end abuts against the second ball socket 30. Here, as shown with reference to fig. 2, 10 and 19, the second ball socket holder 302 includes a connecting boss portion 3021 and a flange 3022, the flange 3022 is provided at an end of the boss portion 3021 facing the second ball socket body 3021, and the support spring 3 is fitted to the connecting boss portion 3021 and abuts on an end surface of the flange 3022 facing an end of the first boss portion 111. Referring to fig. 15, the second ball holder 302 includes a coupling boss portion 3021, and the corresponding end of the support spring 3 is fitted over the coupling boss portion 3021. Here, the first boss part 111 and the coupling boss part 3021 are respectively provided with a spiral catching groove for mounting the support spring 3, so that the connection strength of the support spring 3 with the spiral catching grooves on the first boss part 111 and the coupling boss part 3021, respectively, can be improved by the tensile force of the support spring 3 itself, thereby securing the mounting of the support spring 3.

In the specific embodiment provided by the present disclosure, the axial direction of the worm 61 is perpendicular to the axial direction of the screw rod 2, so as to form the "L" type electric stay shown in fig. 1 to 21, which can reduce the inherent length of the electric stay, thereby being beneficial to improving the versatility of the electric stay.

The operation of the electric stay of the vehicle tailgate provided by the present disclosure is described with reference to the above-mentioned embodiment, and as shown in fig. 1 to 21, in operation, one of the first ball socket 20 and the second ball socket 30 provided at both ends of the electric stay is connected to the tailgate, the other of the first ball socket 20 and the second ball socket 30 is connected to the vehicle body, the motor 5 sequentially passes through the worm 61 and the worm wheel 62 to drive the screw rod 2 to rotate, and the second end of the screw rod 2 is movably connected to the guide sleeve 4 through the coupling assembly 41, so that the screw rod 2 can axially move relative to the guide sleeve 4 to drive the electric stay to extend or retract, thereby supporting the vehicle tailgate. In addition, the support spring 3 installed between the second ball socket 30 and the first boss portion 111 plays a role of assisting in the contraction movement of the stay, thereby allowing the tailgate to be automatically opened and closed. In addition, for the vibration of effectual buffering motor 5, be provided with damping gum cover 51 respectively in the axial of motor 5, damping gum cover 51 is located on motor 5 towards the pot head of motor 5, then will install the motor 5 of damping gum cover 511 and be fixed in between first motor casing part 112 and the second motor casing part 122 to the vibrations of limited buffering motor can avoid the abnormal sound, reduces the sound pressure level of vaulting pole, improves the vaulting pole performance.

In the example shown in fig. 1 to 21, four embodiments of the electric stay of the vehicle tail gate are shown, wherein, as in the first embodiment shown in fig. 1 to 9 and 18, the first ball socket 20 is integrally formed with the second bushing portion 121, and the second ball socket body 301 is integrally formed with the second ball socket holder 302. In the second embodiment shown in fig. 10 to 14 and 18, the first ball socket 20 is detachably connected to the second bushing portion 121, and the second socket body 301 is integrally formed with the second socket holder 302. In the third embodiment shown in fig. 15 to 18, the first ball socket 20 is integrally formed with the second bushing portion 121, and the second ball socket body 301 is formed separately from the second ball socket 302. In the fourth embodiment shown in fig. 19 to 21, the first ball socket 20 is integrally formed with the second boss portion 121, the second ball socket body 301 is integrally formed with the second ball socket holder 302, and the damper 9 is provided in the first boss portion 111. In other embodiments of the present disclosure, the first ball socket 20 and the second ball socket 30 of the electric stay may be arranged in other ways, and the present disclosure is not limited thereto, and those skilled in the art can arrange them according to actual needs.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides an electronic vaulting pole of vehicle tail-gate, its characterized in that, electronic vaulting pole includes lead screw (2), motor element and worm gear speed reduction drive mechanism, motor element includes motor (5), motor (5) are passed through worm gear speed reduction drive mechanism with lead screw (2) transmission is connected, in order to drive lead screw (2) rotate around self axis.

2. The electric stay of a vehicle tailgate according to claim 1, characterized in that the worm gear reduction transmission mechanism comprises a worm wheel (62) and a worm (61) which are matched, the worm wheel (62) is coaxially connected to the first end of the screw rod (2), the worm (61) is coaxially connected to the output shaft of the motor (5), wherein the axial direction of the worm (61) is at an angle to the axial direction of the screw rod (2).

3. The electric stay of a vehicle tailgate according to claim 2, characterized in that the electric stay comprises a housing (1), the housing (1) having a first boss portion (111), a second boss portion (121), a first motor housing portion (112) and a second motor housing portion (122), the first boss portion (111) and the second boss portion (121) being separately formed and coaxially connected, the first end of the screw shaft (2) passing through the first boss portion (111) and being supported in the first boss portion (111), the first motor housing portion (112) and the second motor housing portion (122) being connected as a rotor structure accommodating the motor assembly.

4. The electric stay of a vehicle tailgate according to claim 3, characterized in that the outer shell (1) comprises a first housing (11) integrally formed, the first housing (11) comprising the first bushing portion (111) and the first motor housing portion (112);

the outer shell (1) comprises an integrally formed second shell (12), the second shell (12) comprising the second sleeve portion (121) and the second motor housing portion (122);

wherein the first sleeve portion (111) is detachably connected with the second sleeve portion (121), and the first motor housing portion (112) and the second motor housing portion (122) are detachably connected.

5. Electric stay of a vehicle tailgate according to claim 3, characterized in that the worm wheel (62) is supported in the second bushing part (121) and is configured with a central blind hole in which the end of the first end of the screw spindle (2) is inserted and connected.

6. The electric stay of a vehicle tailgate according to claim 3, characterized in that it comprises a damper (9), the damper (9) being arranged in the first bushing portion (111) by means of a rotational positioning structure, the first end of the screw (2) being arranged through the damper (9).

7. Electric stay of a vehicle tailgate according to claim 3, characterized in that the screw (2) is provided with a seal (8) in the first bushing part (111), which seal (8) is arranged at a side remote from the second bushing part (121) and provides a seal between the screw (2) and the first bushing part (111).

8. Electric stay of a vehicle tailgate according to claim 3, characterized in that it comprises a first ball socket (20), said first ball socket (20) being provided to said second bushing portion (121);

the first ball and socket (20) being formed integrally with the second sleeve portion (121), or,

the first ball socket (20) is formed separately from the second sleeve part (121) and is detachably connected to the second sleeve part (121) by a first connection (203).

9. Electric stay of a vehicle tailgate according to claim 8, characterized in that it comprises a swing-proof bracket (40), said swing-proof bracket (40) being connected to said second bushing portion (121) and being formed with a first through hole (401) arranged coaxially to a first mounting hole (2011) of said first ball socket (20), a first swing-proof rubber bushing (402) being mounted in said first through hole (401).

10. The electric stay of a vehicle tailgate according to claim 3, characterized in that the electric stay comprises a guide pipe sleeve (4), a second ball socket support (302) and a second ball socket (30), the guide pipe sleeve (4) is in screw fit connection with the screw rod (2) to realize the expansion and contraction of the electric stay, the second ball socket (30) is fixedly arranged at one end of the guide pipe sleeve (4) far away from the screw rod (2), wherein,

the second ball socket (30) is integrally formed or fixedly connected with the second ball socket support (302), or,

the second ball socket (30) is formed separately from the second ball socket support (302) and is detachably connected to the second ball socket support (302) through a second connector (303), and the second connector (303) is in clearance fit with the second ball socket support (302) to allow the second ball socket (30) to freely rotate around the central axis of the electric strut.

11. Electric stay of a vehicle tailgate according to claim 10, characterized in that it comprises a supporting spring (3), said supporting spring (3) being fitted over said screw (2) and said guide sleeve (4) and abutting at one end against said first bushing portion (111) and at the other end against said second ball socket (30).

12. Electric stay of a vehicle tailgate according to any of claims 2-11, characterized in that the axial direction of the worm (61) is perpendicular to the axial direction of the screw (2).

13. A vehicle, characterized in that it comprises an electrically powered stay of a vehicle tailgate according to any of claims 1-12.