CN111119644A - Driving mechanism and turnover device - Google Patents

Abstract

The invention discloses a driving mechanism and a turnover device.A rotating shaft is sleeved in a shell; and sleeving the guide sleeve outside the rotating shaft, and arranging the driving assembly in the guide sleeve, so that the driving assembly is in transmission fit with the rotating shaft to complete the assembling operation of the driving mechanism. Because the structure of the driving mechanism of the scheme adopts the sleeve joint design, the internal structure is arranged in the shell, so that the driving mechanism has higher integrity, the matching between the structure and the structure is more compact, and the whole structure volume of the driving mechanism is greatly reduced. Simultaneously, this actuating mechanism adopts the rotation drive mode of axis of rotation for drive assembly realizes rotating the conversion of action to the translation action along uide bushing axial displacement under the direction cooperation of uide bushing, thereby makes and opening and close door or bonnet in-process, only needs the drive axis of rotation to rotate, can realize that door or bonnet are stably opened and close, so, has greatly improved actuating mechanism's drive stability, makes to open and close the action even running.

Description

Driving mechanism and turnover device

Technical Field

The invention relates to the technical field of motor vehicles, in particular to a driving mechanism and a turnover device.

Background

With the development of economy, the transportation industry is continuously increased, meanwhile, the structural design of the automobile is greatly optimized, and the comfort of the automobile becomes one of important parameters for evaluating the performance of the automobile in the automobile design. In the structural design of an automobile trunk or a luggage compartment door, the opening and closing actions are mostly required to be performed manually or by means of an auxiliary mechanism, the auxiliary mechanism basically comprises a torsion spring, an air stay rod, a common electric telescopic rod and other mechanisms, however, the mechanisms are large in size, too fast in operation speed or inconsistent, and the opening and closing actions cannot run stably.

Disclosure of Invention

Therefore, it is necessary to provide a driving mechanism and a turnover device to make the opening and closing operation operate stably; meanwhile, the integrity of the structure is improved, the integral structure volume of the device is reduced, and the occupied space in the vehicle is reduced.

The technical scheme is as follows:

a drive mechanism comprising: a housing; the rotating shaft is rotatably arranged in the shell, and one end of the rotating shaft is used for being matched with a motor in a driving way; the driving structure comprises a guide sleeve sleeved outside the rotating shaft and a driving assembly in guide fit with the guide sleeve, the driving assembly is in transmission fit with the rotating shaft, the driving assembly can move along the axial direction of the guide sleeve under the action of the rotating shaft, and one end of the driving assembly is in transmission fit with a vehicle door or a vehicle cover.

The driving mechanism is characterized in that the rotating shaft is sleeved in the shell; and sleeving the guide sleeve outside the rotating shaft, and arranging the driving assembly in the guide sleeve, so that the driving assembly is in transmission fit with the rotating shaft to complete the assembling operation of the driving mechanism. Because the structure of the actuating mechanism of this scheme all adopts the design of cup jointing, all installs inner structure in the casing, consequently for actuating mechanism's wholeness is higher, guarantees to cooperate compacter between structure and the structure, reduces actuating mechanism overall structure volume greatly, reduces actuating mechanism shared space in the car, is favorable to promoting user's experience and feels. Simultaneously, this actuating mechanism adopts the rotation drive mode of axis of rotation for drive assembly realizes rotating the conversion of action to the translation action along uide bushing axial displacement under the direction cooperation of uide bushing, thereby makes and opening and close door or bonnet in-process, only needs the drive axis of rotation to rotate, can realize that door or bonnet are stably opened and close, so, has greatly improved actuating mechanism's drive stability, makes to open and close the action even running.

The principle and effect of the invention will be further explained by combining the above scheme:

in one embodiment, the driving assembly comprises a sliding part and a driving part connected with the sliding part, the sliding part is sleeved outside or inside the rotating shaft in a threaded manner, and the driving part penetrates through the guide sleeve and is used for being in transmission fit with the vehicle door or the vehicle cover.

In one embodiment, the sliding part is sleeved outside the rotating shaft in a threaded manner, the driving part is sleeved outside the rotating shaft, and the sliding part and/or the driving part are/is in guiding fit with the guide sleeve.

In one embodiment, a first guiding portion is provided on the sliding member and/or the driving member, and a second guiding portion is provided in the guiding sleeve and is in guiding fit with the first guiding portion, and the second guiding portion is provided along the axial direction of the guiding sleeve.

In one embodiment, an end cover is arranged at the end part of the guide sleeve, a guide hole matched with the driving piece is formed in the end cover, and the driving piece penetrates through the guide hole and is used for being in transmission fit with the vehicle door or the vehicle cover.

In one embodiment, the driving mechanism further includes a pushing sleeve and a first connecting end both disposed on the driving assembly, the pushing sleeve is movably sleeved on the housing, the pushing sleeve is sleeved outside the guide sleeve, the driving assembly is connected to the first connecting end, and the first connecting end is used for connecting to the vehicle door or the vehicle cover.

In one embodiment, the driving mechanism further includes a spring sleeved outside the guide sleeve, one end of the spring is in interference fit with the housing, and the other end of the spring is in interference fit with the first connecting end.

In one embodiment, the driving mechanism further comprises a bearing seat and a bearing mounted on the bearing seat, the bearing seat is mounted in the housing, and the rotating shaft is rotatably mounted on the bearing.

The turnover device comprises a motor and the driving mechanism, wherein the motor is arranged in the shell, an output shaft of the motor is in driving fit with the rotating shaft, and one end of the motor is used for being connected in the automobile body.

The turning device adopts the driving mechanism to sleeve the rotating shaft in the shell; and sleeving the guide sleeve outside the rotating shaft, and arranging the driving assembly in the guide sleeve, so that the driving assembly is in transmission fit with the rotating shaft to complete the assembling operation of the driving mechanism. Because the structure of the actuating mechanism of this scheme all adopts the design of cup jointing, all installs inner structure in the casing, consequently for actuating mechanism's wholeness is higher, guarantees to cooperate compacter between structure and the structure, reduces actuating mechanism overall structure volume greatly, reduces actuating mechanism shared space in the car, is favorable to promoting user's experience and feels. Simultaneously, this actuating mechanism adopts the rotation drive mode of axis of rotation for drive assembly realizes rotating the conversion of action to the translation action along uide bushing axial displacement under the direction cooperation of uide bushing, thereby makes and opening and close door or bonnet in-process, only needs the drive axis of rotation to rotate, can realize that door or bonnet are stably opened and close, so, has greatly improved actuating mechanism's drive stability, makes to open and close the action even running.

In one embodiment, the turnover device further comprises a speed reducer, and the output shaft of the motor is in driving fit with the rotating shaft through the speed reducer.

In one embodiment, the turnover device further comprises a damper, the damper is installed in the housing, and the damper is disposed between the motor and the rotating shaft.

Drawings

Fig. 1 is a schematic structural diagram of a turning device according to an embodiment of the present invention;

fig. 2 is an exploded view of a turning device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a driving structure according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a turning device according to an embodiment of the present invention;

fig. 5 is an enlarged view of the structure at circle a in fig. 4.

Description of reference numerals:

100. the driving mechanism comprises a driving mechanism, 110, a housing, 111, a first housing section, 112, a second housing section, 113, a connecting section, 114, a first buckling part, 120, a rotating shaft, 130, a driving structure, 131, a guide sleeve, 1311, a second guide part, 1312, a clamping hole, 132, a driving component, 1321, a sliding part, 1322, a driving part, 1323, a first guide part, 1324, a first limit part, 133, an end cover, 1331, a clamping plate, 1332, a convex part, 1333, a transition surface, 140, a pushing sleeve, 150, a first connecting end, 151, a second limit part, 160, a spring, 170, a bearing seat, 171, a second buckling part, 180, a bearing, 200, a motor, 210, a second connecting end, 300, a reducer, 400, a damper, 500 and a shaft sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

In one embodiment, referring to fig. 1 and fig. 2, a driving mechanism 100 includes: a housing 110, a rotating shaft 120 and a driving structure 130. The rotating shaft 120 is rotatably installed in the housing 110, and one end of the rotating shaft 120 is used for driving and matching with the motor 200. The driving structure 130 includes a guiding sleeve 131 sleeved outside the rotating shaft 120, and a driving component 132 in guiding fit with the guiding sleeve 131, the driving component 132 is in transmission fit with the rotating shaft 120, the driving component 132 can move along the axial direction of the guiding sleeve 131 under the action of the rotating shaft 120, and one end of the driving component 132 is used for being in transmission fit with a vehicle door or a vehicle cover.

In the above-mentioned driving mechanism 100, the rotating shaft 120 is sleeved in the housing 110; the guiding sleeve 131 is sleeved outside the rotating shaft 120, and the driving assembly 132 is installed in the guiding sleeve 131, so that the driving assembly 132 is in transmission fit with the rotating shaft 120 to complete the assembling operation of the driving mechanism 100. Because the structure of actuating mechanism 100 of this scheme all adopts the design of cup jointing, all installs inner structure in casing 110, consequently for actuating mechanism 100's wholeness is higher, guarantees that the cooperation is compacter between structure and the structure, reduces actuating mechanism 100 overall structure volume greatly, reduces actuating mechanism 100 shared space in the car, is favorable to promoting user's experience and feels. Meanwhile, the driving mechanism 100 adopts a rotation driving mode of the rotating shaft 120, so that the driving component 132 moves axially along the guide sleeve 131 under the guide cooperation of the guide sleeve 131, the conversion from the rotation action to the translation action is realized, and in the process of opening and closing the vehicle door or the vehicle cover, only the rotating shaft 120 needs to be driven to rotate, and the stable opening and closing of the vehicle door or the vehicle cover can be realized, so that the driving stability of the driving mechanism 100 is greatly improved, and the stable operation of the opening and closing action is realized.

It should be noted that the guiding engagement of the driving assembly 132 and the guiding sleeve 131 should be understood as: the driving unit 132 is guided by the guide sleeve 131 to move in the axial direction, and cannot rotate in the guide sleeve 131. The guiding manner of the driving assembly 132 and the guiding sleeve 131 can be various, such as: a guide strip or guide groove structure is arranged between the driving component 132 and the guide sleeve 131; alternatively, the guide sleeve 131 is provided with a non-circular hole, and the outer side of the driving assembly 132 has a non-circular structure, such as an oval, a square, a pentagon, a hexagon, etc.

It should also be noted that the driving assembly 132 having one end drivingly engaged with the door or hood should be understood as: the drive assembly 132 is directly connected to the door or hood; alternatively, the drive assembly 132 is indirectly coupled to the door or hood. When the driving assembly 132 is indirectly connected to the door or the hood, an intermediate connection structure is provided between the driving assembly 132 and the door or the hood, and the driving force of the driving assembly 132 is transmitted to the door or the hood through the intermediate connection structure.

Further, referring to fig. 2 and 3, the driving assembly 132 includes a sliding member 1321 and a driving member 1322 connected to the sliding member 1321. The slider 1321 is threadedly engaged with the outside or inside of the rotating shaft 120. The driver 1322 extends through the guide housing 131 for driving engagement with a door or hood of the vehicle. Since the driving assembly 132 is in guiding engagement with the guide sleeve 131 to limit the rotation of the sliding component 1321 in the guide sleeve 131, when the rotating shaft 120 rotates, the sliding component 1321 slides on the rotating shaft 120 and drives the driving component 1322 to move up and down in the guide sleeve 131, so that the driving component 1322 completes the opening and closing of the door or the hood.

It should be noted that, when the sliding component 1321 is screwed on the outside of the rotating shaft 120, that is, the sliding component 1321 is provided with an internal thread, and the rotating shaft 120 is provided with an external thread, the guiding sleeve 131 is in guiding fit with the sliding component 1321 and/or the driving component 1322; when the sliding component 1321 is screwed into the rotating shaft 120, i.e. the sliding component 1321 is provided with an external thread and the rotating shaft 120 is provided with an internal thread, the guiding sleeve 131 is in guiding fit with the part of the driving component 1322 extending out of the rotating shaft 120, and at this time, the driving component 1322 also extends into the rotating shaft 120.

Alternatively, the driving member 1322 and the sliding member 1321 may be bolted, pinned, welded, integrally connected, snapped, or otherwise connected.

Further, referring to fig. 3, the sliding member 1321 is threaded on the outer portion of the rotating shaft 120. The driving member 1322 is sleeved outside the rotating shaft 120, and at least one of the driving member 1322 and the sliding member 1321 is in guiding fit with the inside of the guide sleeve 131, so that the driving assembly 132 moves more stably in the guide sleeve 131 under the action of the rotating shaft 120, and the opening and closing actions of the vehicle door or the vehicle cover are more stable.

In one embodiment, referring to fig. 3, the sliding member 1321 and/or the driving member 1322 is provided with a first guiding portion 1323. The guide sleeve 131 is internally provided with a second guide part 1311 which is in guide fit with the first guide part 1323, and the second guide part 1311 is arranged along the axial direction of the guide sleeve 131, so that the first guide part 1323 is in guide fit with the second guide part 1311, so that the sliding piece 1321 is ensured to move on the rotating shaft 120 only along the axial direction of the guide sleeve 131, the sliding piece 1321 is enabled to move up and down, and the sliding piece 1321 is prevented from rotating in the guide sleeve 131.

Optionally, the first guiding portion 1323 is a guide bar, and the second guiding portion 1311 is a guide groove; alternatively, the first guide portion 1323 is a guide groove and the second guide portion 1311 is a guide bar.

In one embodiment, referring to fig. 3, an end cap 133 is disposed at an end of the guiding sleeve 131. The end cap 133 is provided with a guide hole for engaging the driving member 1322. The actuator 1322 extends through the guide hole for driving engagement with a door or hood of the vehicle. Therefore, when the driving member 1322 moves up and down in the guide sleeve 131, the driving member 1322 is affected by the guide hole of the end cap 133, so that the driving member 1322 moves more stably, and the driving member 1322 is prevented from moving and shaking to affect the stability of the opening and closing operation of the vehicle door or the vehicle cover.

Further, referring to fig. 3, a plurality of clamping plates 1331 are disposed on the end cap 133, the plurality of clamping plates 1331 are disposed at intervals along the circumferential direction of the guide hole, a protrusion 1332 is disposed on the clamping plate 1331, a clamping hole 1312 is disposed in the guide sleeve 131, and when the clamping plate 1331 is inserted into the guide sleeve 131, the protrusion 1332 can be clamped into the clamping hole 1312, so that the end cap 133 is stably connected to the guide sleeve 131.

Specifically, the second guide portion 1311 is a guide groove, the card hole 1312 is provided at a groove bottom of the guide groove, and the card plate 1331 can be inserted into the guide groove.

In one embodiment, referring to fig. 3, the driving mechanism 100 further includes a pushing sleeve 140 and a first connecting end 150 both disposed on the driving assembly 132. The pushing sleeve 140 is movably sleeved on the housing 110, and the pushing sleeve 140 is sleeved outside the guiding sleeve 131. The driving assembly 132 is connected to the first connection end 150. The first connection end 150 is used to connect with a door or a hood. It can be seen that the driving assembly 132 is in driving engagement with the door or the hood via the first connection end 150, so that the driving assembly 132 drives the door or the hood stably. Because the driving assembly 132 is provided with the pushing sleeve 140, and the pushing sleeve 140 can be movably sleeved on the housing 110, in this embodiment, the pushing sleeve 140 is matched with the housing 110 to form a complete external structure, and the driving assembly 132 is integrated in the pushing sleeve 140 and the housing 110, so that the driving mechanism 100 has higher integrity, the compactness of the driving mechanism 100 is further improved, and the occupied space of the driving mechanism 100 in the vehicle is greatly reduced. Meanwhile, when the driving assembly 132 moves, the pushing sleeve 140 also moves along with the driving assembly 132 in the housing 110, which effectively prevents the driving assembly 132 from exposing the internal structure of the driving mechanism 100 when moving, so that the driving mechanism 100 can maintain the structural integrity during operation.

Optionally, the present embodiment does not specifically limit the structure of the first connection end 150, and it is only necessary that a vehicle door or a vehicle cover can be connected to the first connection end 150, for example: the first connection end 150 may be a ball connection structure, a ball-and-socket connection structure, etc.

Optionally, the first connection end 150 is connected to the driving assembly 132 by a bolt, a pin, a weld, a snap, or other connection.

Further, referring to fig. 2, the driving mechanism 100 further includes a spring 160 sleeved outside the guiding sleeve 131. One end of the spring 160 is in interference fit with the housing 110, and the other end of the spring 160 is in interference fit with the first connecting end 150. Therefore, the spring 160 is disposed between the housing 110 and the first connection end 150, so that the extending action of the first connection end 150 is eased by the pushing force of the spring 160, which is beneficial to reducing the load of the motor 200. Meanwhile, the spring 160 also reduces the force applied to the first connection end 150, thereby reducing the damage of the impact force to the internal structure of the driving mechanism 100.

Further, referring to fig. 2, the driving assembly 132 is provided with a first limiting portion 1324, one end of the spring 160 abuts against the first limiting portion 1324, and the other end of the spring 160 abuts against the housing 110, so that the spring 160 is stably installed.

Specifically, referring to fig. 2, the first connecting end 150 is further provided with a second limiting portion 151, the first limiting portion 1324 and the second limiting portion 151 are disposed at an interval, and one end of the pushing sleeve 140 is limited between the first limiting portion 1324 and the second limiting portion 151.

In one embodiment, referring to fig. 3, a transition surface 1333 is disposed on a side of the end cap 133 facing away from the driving component 132, and the transition surface 1333 is smoothly connected between an end of the guide sleeve 131 and the driving component 132, so that the spring 160 is smoothly compressed or stretched at a boundary between the guide sleeve 131 and the driving component 132, and a step difference between the guide sleeve 131 and the driving component 132 is avoided, which results in easy jamming of the spring 160.

In one embodiment, referring to fig. 4 and 5, the driving mechanism 100 further includes a bearing seat 170, and a bearing 180 mounted on the bearing seat 170. The bearing housing 170 is installed in the housing 110, and the rotating shaft 120 is rotatably installed on the bearing 180. Thus, the rotating shaft 120 is stably installed through the bearing 180 and the bearing seat 170, so that the rotating shaft 120 rotates smoothly, and the deflection of the rotating shaft 120 is reduced.

Alternatively, the bearing housing 170 may be mounted in the housing 110 by a threaded connection, a snap connection, a bolt connection, or other connection.

Further, referring to fig. 1, the housing 110 includes a first housing section 111, a second housing section 112, and a connecting section 113 connected between the first housing section 111 and the second housing section 112, the driving structure 130 is installed in the first housing section 111, the motor 200 is installed in the second housing section 112, and the bearing seat 170 is installed in the connecting section 113.

Specifically, the diameter of the first shell section 111 is smaller than that of the second shell section 112, and the diameter of the connecting section 113 gradually increases from the end of the connecting section 113 close to the first shell section 111 to the end of the connecting end close to the second shell section 112, so that the space in the housing 110 is reduced as much as possible on the premise of ensuring the stable installation of the internal structure of the driving mechanism 100, and the structural volume of the turnover device is smaller.

In an embodiment, referring to fig. 1 and fig. 5, a first fastening portion 114 is disposed in the housing 110, and a second fastening portion 171 that is fastened to the first fastening portion 114 is disposed on the bearing seat 170, so that the bearing seat 170 is stably fixed by the first fastening portion 114 and the second fastening portion 171, and the rotating shaft 120 is ensured to output stably.

Optionally, the first fastening portion 114 is a protrusion, and the second fastening portion 171 is a slot; alternatively, the first locking portion 114 is a locking groove, and the second locking portion 171 is a protrusion.

In one embodiment, referring to fig. 1, fig. 2 and fig. 4, an overturning device includes a motor 200 and the driving mechanism 100 in any of the above embodiments. The motor 200 is installed in the housing 110, an output shaft of the motor 200 is in driving fit with the rotating shaft 120, and one end of the motor 200 is used for being connected in the vehicle body.

In the turning device, the driving mechanism 100 is adopted, and the rotating shaft 120 is sleeved in the shell 110; the guiding sleeve 131 is sleeved outside the rotating shaft 120, and the driving assembly 132 is installed in the guiding sleeve 131, so that the driving assembly 132 is in transmission fit with the rotating shaft 120 to complete the assembling operation of the driving mechanism 100. Because the structure of actuating mechanism 100 of this scheme all adopts the design of cup jointing, all installs inner structure in casing 110, consequently for actuating mechanism 100's wholeness is higher, guarantees that the cooperation is compacter between structure and the structure, reduces actuating mechanism 100 overall structure volume greatly, reduces actuating mechanism 100 shared space in the car, is favorable to promoting user's experience and feels. Meanwhile, the driving mechanism 100 adopts a rotation driving mode of the rotating shaft 120, so that the driving component 132 moves axially along the guide sleeve 131 under the guide cooperation of the guide sleeve 131, the conversion from the rotation action to the translation action is realized, and in the process of opening and closing the vehicle door or the vehicle cover, only the rotating shaft 120 needs to be driven to rotate, and the stable opening and closing of the vehicle door or the vehicle cover can be realized, so that the driving stability of the driving mechanism 100 is greatly improved, and the stable operation of the opening and closing action is realized.

Alternatively, the output shaft of the motor 200 may be coupled to the rotating shaft 120 by a coupling, a spline, an end cap 133, or other connection methods.

Specifically, turning device includes axle sleeve 500, and axle sleeve 500 one end is equipped with the keyway in the axle sleeve 500 other end and the output shaft drive cooperation of motor 200, is equipped with corresponding key on the axis of rotation 120, so for realize stable transmission between motor 200 and the axis of rotation 120.

Further, referring to fig. 5, the flipping device further includes a reducer 300, and an output shaft of the motor 200 is driven to cooperate with the rotating shaft 120 through the reducer 300. So, through reduction gear 300, reduce the rotational speed of motor 200, strengthen the moment of torsion of motor 200 for motor 200 provides bigger power to axis of rotation 120, guarantees that door or bonnet are stably opened and close.

It should be noted that the reducer 300 is composed of a planetary gear, an inner gear ring, and the like, and since the reducer 300 is not an object of improvement in the present embodiment, the reducer 300 may refer to an existing device. Meanwhile, one end of the shaft sleeve 500 is connected with the speed reducer 300 to be synchronously and rotatably connected.

In one embodiment, referring to fig. 5, the flipping mechanism further comprises a damper 400. The damper 400 is installed in the housing 110, and the damper 400 is disposed between the motor 200 and the rotation shaft 120. In this way, the damper 400 enhances the supporting force of the motor 200, and reliably supports a vehicle door or a vehicle hood having a large weight. Specifically, in the present embodiment, the damper 400 is installed between the reducer 300 and the rotating shaft 120, and the shaft sleeve 500 penetrates the damper 400 and is connected to the rotating shaft 120.

It should be noted that the damper 400 of the present embodiment includes a plurality of friction plates, elastic pressing plates, positioning plates, etc., and the specific structure and the specific operation principle of the damper 400 can refer to the existing devices.

In one embodiment, referring to fig. 4, one end of the motor 200 is provided with a second connecting end 210, and the second connecting end 210 is used for connecting to the inside of the vehicle body. Meanwhile, a buffer pad is filled between the motor 200 and the housing 110 to reduce vibration during the operation of the motor 200 and reduce noise generated during the operation of the motor 200. Wherein, the material of the buffer pad can be foamed plastic, rubber material and the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A drive mechanism, comprising:

a housing;

the rotating shaft is rotatably arranged in the shell, and one end of the rotating shaft is used for being matched with a motor in a driving way; and

the driving structure comprises a guide sleeve sleeved outside the rotating shaft and a driving assembly in guide fit with the guide sleeve, the driving assembly is in transmission fit with the rotating shaft and can move axially along the guide sleeve under the action of the rotating shaft, and one end of the driving assembly is in transmission fit with a vehicle door or a vehicle cover.

2. The drive mechanism as claimed in claim 1, wherein the drive assembly comprises a slider and a driving member connected to the slider, the slider is threaded onto the outside or inside of the rotating shaft, and the driving member passes through the guide sleeve for driving engagement with the door or the hood.

3. The drive mechanism as claimed in claim 2, wherein the slider is threaded onto the outside of the rotating shaft and the driver is threaded onto the outside of the rotating shaft, the slider and/or the driver being guided into engagement with the guide sleeve.

4. The drive mechanism as claimed in claim 3, characterized in that the sliding element and/or the driving element is provided with a first guide portion, and a second guide portion is provided in the guide sleeve and is in guiding fit with the first guide portion, and the second guide portion is arranged along the axial direction of the guide sleeve.

5. The drive mechanism as claimed in claim 2, wherein an end cap is provided at an end of the guide sleeve, and a guide hole for engaging with the driving member is provided on the end cap, and the driving member passes through the guide hole for driving engagement with the door or the hood.

6. The driving mechanism as claimed in claim 1, further comprising a pushing sleeve and a first connecting end both disposed on the driving assembly, wherein the pushing sleeve is movably sleeved on the housing, the pushing sleeve is sleeved outside the guiding sleeve, the driving assembly is connected with the first connecting end, and the first connecting end is used for connecting with the vehicle door or the vehicle cover.

7. The drive mechanism as recited in claim 6, further comprising a spring sleeved outside the guide sleeve, wherein one end of the spring is in interference fit with the housing, and the other end of the spring is in interference fit with the first connecting end.

8. The drive mechanism as claimed in any one of claims 1 to 7, further comprising a bearing housing and a bearing mounted on said bearing housing, said bearing housing being mounted in said housing, said rotatable shaft being rotatably mounted on said bearing.

9. A turnover device, comprising a motor and the driving mechanism as claimed in any one of claims 1 to 8, wherein the motor is disposed in the housing, an output shaft of the motor is in driving fit with the rotating shaft, and one end of the motor is used for being connected in a vehicle body.

10. The turnover device of claim 9, further comprising a speed reducer through which an output shaft of the motor is drivingly engaged with the rotating shaft; alternatively, the first and second electrodes may be,

the turnover device further comprises a damper, the damper is arranged in the shell, and the damper is arranged between the motor and the rotating shaft.

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