阅读说明：本技术 一种液压升降泊车机构 (Hydraulic lifting parking mechanism ) 是由 梁洨铭 李振培 于 2019-10-14 设计创作，主要内容包括：一种液压升降泊车机构,所述伸缩定位机构里面设置有液压动力机构,所述液压动力机构与电动液压机的油管连接,电动液压机能够控制液压动力机构与伸缩定位机构同步升高或降低,转向机构能够控制驱动机构的转向,所述液压动力机构包括所述若干节设置有密封圈的伸缩套管与伸缩轴,通过螺栓能够把伸缩小管、固定齿轮、伸缩轴三个部件连接固定,伸缩轴能够带动伸缩小管和固定齿轮同步运动,固定螺栓的下部能够与驱动轮支架里面的轴承连接,转向电机转动能够带动转向齿轮绕着固定齿轮转运动,实行了转向运动,安装在驱动轮支架上的驱动轮能够控制液压升降泊车机构的行走运动。(A hydraulic lifting parking mechanism, a hydraulic power mechanism is arranged in the telescopic positioning mechanism, the hydraulic power mechanism is connected with an oil pipe of the electric hydraulic machine, the electric hydraulic machine can control the hydraulic power mechanism and the telescopic positioning mechanism to synchronously ascend or descend, the steering mechanism can control the steering of the driving mechanism, the hydraulic power mechanism comprises a plurality of sections of telescopic sleeves and telescopic shafts which are provided with sealing rings, the three parts of the telescopic small pipe, the fixed gear and the telescopic shaft can be fixedly connected through the bolts, the telescopic shaft can drive the telescopic small pipe and the fixed gear to move synchronously, the lower portion of the fixed bolt can be connected with a bearing inside the driving wheel support, the steering motor can drive the steering gear to rotate around the fixed gear, steering movement is carried out, and the driving wheel mounted on the driving wheel support can control walking movement of the hydraulic lifting parking mechanism.)

1. The utility model provides a hydraulic pressure lift parking mechanism, includes flexible positioning mechanism, hydraulic power unit, electronic hydraulic press, fixed plate, fixing bolt, drive wheel, steering mechanism, its characterized in that: a hydraulic power mechanism is arranged in the telescopic positioning mechanism and is connected with an output oil pipe of an electric hydraulic machine, the electric hydraulic machine can control the hydraulic power mechanism and the telescopic positioning mechanism to synchronously ascend or descend, a steering mechanism can control the steering of a driving mechanism, and a driving wheel controls running;

the hydraulic power mechanism comprises a plurality of sections of telescopic sleeves provided with sealing rings, the telescopic sleeves are provided with outer arm shoulders and inner arm shoulders, oil inlet holes are formed in the walls of the telescopic sleeves, the oil inlet holes penetrate through the inner wall at the lower ends of the telescopic sleeves, and hydraulic oil can be input into the telescopic sleeves from the oil inlet holes.

2. A hydraulic lifting parking mechanism according to claim 1, wherein: the inner arm shoulders of the first, second and third telescopic sleeves of the hydraulic power mechanism are provided with a plurality of sealing ring positioning grooves, and the outer arm shoulders of the second and third telescopic sleeves are provided with a plurality of sealing ring positioning grooves.

3. A hydraulic lifting parking mechanism according to claim 2, wherein: a second section of telescopic pipe is installed in a first section of telescopic pipe of the hydraulic power mechanism, a third section of telescopic pipe is installed in the second section of telescopic pipe, a telescopic shaft is installed in the third section of telescopic pipe, the telescopic shaft is provided with a shaft shoulder, and the shaft shoulder of the telescopic shaft is provided with a plurality of sealing ring positioning grooves.

4. A hydraulic lifting parking mechanism according to claim 1, wherein: the hydraulic power mechanism is characterized in that an ascending oil inlet hole and a descending oil inlet hole are formed in the fixing plate and are respectively connected with two output ports of the electric hydraulic machine, the hydraulic power mechanism ascends when oil enters the ascending oil inlet hole, and the hydraulic power mechanism contracts when oil enters the descending oil inlet hole.

5. A hydraulic lifting parking mechanism according to claim 4, wherein: a first section of telescopic sleeve of the hydraulic power mechanism is fixedly connected with a fixed plate, and a descending oil inlet hole in the fixed plate is communicated with an oil inlet hole in the wall of the telescopic sleeve.

6. A hydraulic lifting parking mechanism according to claim 1, wherein: the telescopic positioning mechanism comprises a fixed pipe, a telescopic large pipe, a telescopic middle pipe and a telescopic small pipe, wherein the upper end of the fixed pipe can be fixedly connected with the fixed plate, the telescopic large pipe is arranged in the fixed pipe, the telescopic middle pipe is arranged in the telescopic large pipe, and the telescopic small pipe is arranged in the telescopic middle pipe.

7. A hydraulic lifting parking mechanism according to claim 6, wherein: the inner wall of the fixed pipe of the telescopic positioning mechanism is provided with a groove matched with the groove formed in the outer wall of the telescopic large pipe, the inner wall of the telescopic large pipe is provided with a groove matched with the groove formed in the outer wall of the telescopic middle pipe, and the inner wall of the telescopic middle pipe is provided with a groove matched with the groove formed in the outer wall of the telescopic small pipe.

8. A hydraulic lifting parking mechanism according to claim 7, wherein: the lower end face of a small telescopic pipe of the telescopic positioning mechanism can be fixedly connected with the lower end of a telescopic shaft of the hydraulic power mechanism, a fixed gear is arranged on the lower end face of the small telescopic pipe, and the small telescopic pipe, the fixed gear and the telescopic shaft can be fixedly connected through the upper portion of a fixing bolt.

9. A hydraulic lifting parking mechanism according to claim 8, wherein: the lower part of the fixing bolt can be connected with a bearing in the driving wheel support, and the driving wheel support can rotate around the fixing bolt.

10. A hydraulic lifting parking mechanism according to claim 1 or 9, wherein: the steering mechanism comprises a driving wheel support, a steering motor and a steering gear, the steering motor is arranged on the driving wheel support, the steering gear is mounted on the steering motor, the steering gear and the fixed gear are mutually toothed, a driving wheel is mounted on the driving wheel support, and the driving motor rotates to drive the driving wheel to move.

Technical Field

The invention relates to a hydraulic lifting parking mechanism in the field of automobile accessories.

Background

At present, more and more private cars are used in China, parking is difficult, and parking is inconvenient to become a difficult problem for car owners, the quantity of cars in China is continuously increased, and particularly the problem that parking is difficult in some districts, parking lots or at the sides of roads is more prominent, so that the phenomena of disordered parking, irregular parking, nonstandard parking, two-position one car occupation and public space occupation are caused; or the front and rear vehicles stop too close, and the vehicle owner cannot take the vehicle; or the parking difficulty that the space of the parking position is not large enough, the vehicle cannot be parked in place normally, and the vehicle is easy to be damaged in a mess when the vehicle is parked is often encountered.

Disclosure of Invention

The invention aims to solve the problem of difficult parking, and when the spatial position of the parking space is not enough to normally park, a vehicle can be transversely parked in the parking space, or the vehicle can not be normally taken when the distance between the front vehicle and the rear vehicle is too small, so that the safety and the convenience of parking and taking the vehicle are improved, and the parking and taking system meets the living requirements of people.

The technical scheme adopted by the invention for solving the technical problem is as follows: a hydraulic lifting parking mechanism comprises a telescopic positioning mechanism, a hydraulic power mechanism, an electric hydraulic machine, a fixing plate, a fixing bolt, a driving wheel and a steering mechanism, wherein the hydraulic power mechanism is arranged in the telescopic positioning mechanism and connected with an oil pipe of the electric hydraulic machine, the electric hydraulic machine can control the hydraulic power mechanism and the telescopic positioning mechanism to synchronously lift or lower, the steering mechanism can control the steering of the driving mechanism, and the driving wheel can control the driving.

The hydraulic power mechanism comprises a plurality of sections of telescopic sleeves provided with sealing rings, the telescopic sleeves are provided with outer arm shoulders and inner arm shoulders, oil inlet holes are formed in the walls of the telescopic sleeves, the oil inlet holes penetrate through the inner wall at the lower ends of the telescopic sleeves, and hydraulic oil can be input into the telescopic sleeves from the oil inlet holes.

A plurality of sealing ring positioning grooves are formed in the inner arm shoulders of the first section of telescopic sleeve, the second section of telescopic sleeve and the third section of telescopic sleeve and the outer arm shoulders of the second section of telescopic sleeve and the third section of telescopic sleeve, sealing rings are installed in the sealing ring positioning grooves, and sealing effect of preventing oil leakage when the telescopic sleeves move is achieved.

A second section of telescopic pipe is installed in a first section of telescopic pipe of the hydraulic power mechanism, a third section of telescopic pipe is installed in the second section of telescopic pipe, a telescopic shaft is installed in the third section of telescopic pipe, the telescopic shaft is provided with a shaft shoulder, and the shaft shoulder of the telescopic shaft is provided with a plurality of sealing ring positioning grooves.

The second section of telescopic sleeve of the hydraulic power mechanism can move upwards or downwards in the first section of telescopic sleeve, and when the second section of telescopic sleeve extends to the maximum value, the outer arm shoulder is blocked by the inner arm shoulder of the first section of telescopic sleeve to stop extending; the third section of telescopic tube can move upwards or downwards in the second section of telescopic tube, and when the third section of telescopic tube extends to the maximum value, the outer arm shoulder is blocked by the inner arm shoulder of the second section of telescopic tube, and the extension is stopped; the telescopic shaft can be arranged in the third section of telescopic sleeve to move upwards or downwards, and the shaft shoulder is blocked by the inner arm shoulder of the third section of telescopic sleeve when the telescopic shaft extends to the maximum value, so that the extension is stopped.

The hydraulic power mechanism is characterized in that an ascending oil inlet hole and a descending oil inlet hole are formed in a fixing plate of the hydraulic power mechanism and are respectively connected with two output ports of the electric hydraulic machine, the two output ports of the electric hydraulic machine can independently perform oil transportation work, the hydraulic power mechanism ascends when the ascending oil inlet hole feeds oil, and the hydraulic power mechanism contracts when the descending oil inlet hole feeds oil.

A first section of telescopic sleeve of the hydraulic power mechanism is fixedly connected with a fixed plate, and a descending oil inlet hole in the fixed plate is communicated with an oil inlet hole in the wall of the telescopic sleeve.

The telescopic positioning mechanism comprises a fixed pipe, a telescopic large pipe, a telescopic middle pipe and a telescopic small pipe, wherein the upper end of the fixed pipe can be fixedly connected with the fixed plate, the telescopic large pipe is arranged in the fixed pipe, the telescopic middle pipe is arranged in the telescopic large pipe, and the telescopic small pipe is arranged in the telescopic middle pipe.

The inner wall of the fixed pipe is provided with a clamping groove which is matched with a groove arranged on the outer wall of the large telescopic pipe, the inner wall of the large telescopic pipe is provided with a clamping groove which is matched with a groove arranged on the outer wall of the middle telescopic pipe, and the inner wall of the middle telescopic pipe is provided with a clamping groove which is matched with a groove arranged on the outer wall of the small telescopic pipe; the telescopic large pipe can move downwards or upwards in the fixed pipe, the telescopic middle pipe can move downwards or upwards in the telescopic large pipe, and the telescopic small pipe can move downwards or upwards in the telescopic middle pipe.

The lower end face of a small telescopic pipe of the telescopic positioning mechanism can be fixedly connected with the lower end of a telescopic shaft of the hydraulic power mechanism, a fixed gear is arranged on the lower end face of the small telescopic pipe, the fixed gear and the telescopic shaft can be fixedly connected through the upper part of a bolt, and the telescopic shaft moves upwards or downwards to drive the small telescopic pipe and the fixed gear to synchronously move upwards or downwards; furthermore, the lower part of the fixing bolt can be connected with a bearing in the driving wheel support, and the driving wheel support can rotate around the fixing bolt.

The steering mechanism comprises a driving wheel support, a steering motor and a steering gear, the steering motor is arranged on the driving wheel support, the steering gear is mounted on the steering motor, the steering gear and the fixed gear are mutually toothed after the driving wheel support is connected with the lower portion of the fixing bolt through a bearing, the steering motor can drive the steering gear to rotate around the fixed gear by rotating, the axis of the fixed gear is used as the center to be meshed and rotated, and the driving wheel support can steer for 360 degrees.

Install the drive wheel on the drive wheel support, the drive wheel include, driving motor, planetary gear, sun gear, outer ring gear, planet carrier, the planet carrier includes main planet carrier and vice planet carrier, and driving motor is installed at main planet carrier center, sun gear and planetary gear intermeshing, planetary gear and outer ring gear intermeshing, planetary gear rotates and drives outer ring gear, and driving motor rotates and drives sun gear rotation, and sun gear drives intermeshing's planetary gear, and planetary gear drives intermeshing's outer ring gear, and outer ring gear drives wheel hub and rotates, has realized the motion of drive wheel.

When an output oil pipe of the electric hydraulic machine only inputs hydraulic oil to an ascending oil inlet of the fixed plate, the second section of telescopic sleeve, the third section of telescopic sleeve and the telescopic shaft can stop extending when extending downwards to the maximum stroke under the action of the hydraulic oil, and when the second section of telescopic sleeve, the third section of telescopic sleeve and the telescopic shaft begin to extend, the telescopic shaft can drive the telescopic large pipe, the telescopic middle pipe, the telescopic small pipe and the telescopic shaft of the telescopic positioning mechanism to synchronously extend and move to the maximum stroke and stop extending, so that the lifting movement of the hydraulic lifting parking mechanism is realized.

When the hydraulic power mechanism is required to contract, the electric hydraulic machine inputs hydraulic oil only to a descending oil inlet hole of the fixed plate, the hydraulic oil is input between an inner arm shoulder of the first section of telescopic sleeve and an outer arm shoulder of the second section of telescopic sleeve through an oil inlet hole of the first section of telescopic sleeve, and the inner arm shoulder and the outer arm shoulder are both provided with sealing rings, so that the inner arm shoulder of the second section of telescopic sleeve can be lifted upwards by the hydraulic oil, the second section of telescopic sleeve moves upwards, (when the second section of telescopic sleeve starts to move upwards, the hydraulic oil which is input to the center of the telescopic sleeve when the hydraulic power mechanism extends out flows back to an oil storage tank of the electric hydraulic machine in a countercurrent mode through the ascending oil inlet hole); when the inner arm shoulder of the second section of telescopic sleeve is lifted upwards, hydraulic oil is input between the inner arm shoulder of the second section of telescopic sleeve and the outer arm shoulder of the third section of telescopic sleeve through the oil inlet hole in the outer wall of the second section of telescopic sleeve to lift the outer arm shoulder of the third section of telescopic sleeve upwards; when the inner arm shoulder of the third section of telescopic sleeve rises, hydraulic oil is input between the inner arm shoulder of the third section of telescopic sleeve and the shaft shoulder of the telescopic shaft through the oil inlet hole in the outer wall of the third section of telescopic sleeve, the shaft shoulder of the telescopic shaft rises upwards, the contraction motion of the hydraulic power mechanism is realized, and the contraction motion of the telescopic positioning mechanism is also driven.

The hydraulic power mechanism is arranged in the telescopic positioning mechanism, so that the hydraulic lifting parking mechanism has the advantages that the stability is higher in the lifting process, the swinging degree between the mutual connection of the telescopic sleeves is smaller, particularly under the condition of bearing larger gravity, the telescopic positioning mechanism not only plays a role in positioning and stretching, but also can better reduce the swinging degree of the hydraulic lifting parking mechanism, and the hydraulic lifting parking mechanism can move more flexibly.

The hydraulic lifting parking device adopts a hydraulic lifting principle, and is provided with the hydraulic power mechanism which is matched with the telescopic positioning mechanism, so that the lifting function of the hydraulic lifting parking mechanism is realized.

The invention has the advantages that the hydraulic lifting parking mechanism is provided with the hydraulic power mechanism inside the telescopic positioning mechanism, the hydraulic power mechanism is connected with an oil pipe of the electric hydraulic machine, the electric hydraulic machine can control the hydraulic power mechanism and the telescopic positioning mechanism to synchronously ascend or descend, the steering mechanism can control the steering of the driving mechanism, the hydraulic power mechanism comprises a plurality of sections of telescopic sleeves and telescopic shafts which are provided with sealing rings, the three parts of the telescopic small pipe, the fixed gear and the telescopic shaft can be fixedly connected through the bolts, the telescopic shaft can drive the telescopic small pipe and the fixed gear to move synchronously, the lower portion of the fixed bolt can be connected with a bearing inside the driving wheel support, the steering motor can drive the steering gear to rotate around the fixed gear, steering movement is carried out, and the driving wheel mounted on the driving wheel support can control walking movement of the hydraulic lifting parking mechanism.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of an extended state

FIG. 2 is a cross-sectional view of a perspective view in an extended state

FIG. 3 is a cross-sectional view of a perspective view of a partially extended state

FIG. 4 is a perspective view of the contracted state

FIG. 5 is a cross-sectional view of a perspective view of the collapsed state

FIG. 6 is a perspective view of the hydraulic power mechanism in a retracted state and with the drive wheel support exploded

FIG. 7 is an exploded view of a drive wheel and drive wheel support

FIG. 8 is a view of the connection of two output ports of the electro-hydraulic machine to the hydraulic power mechanism

FIG. 9 is a perspective view of the vehicle mounted under the chassis

FIG. 10 is a perspective view of the vehicle mounted on the chassis in a fully raised condition

In the figure: 3. bearing, 10, automobile chassis, 11, fixing plate, 12, ascending oil inlet, 13, descending oil inlet, 14, fixing frame, 21, fixing tube, 22, large telescopic tube, 23, middle telescopic tube, 24, small telescopic tube, 25, fixed gear, 26, groove, 27, clamping groove, 30, fixing bolt, 31, first section telescopic sleeve, 32, oil inlet hole, 33, outer arm shoulder, 34, inner arm shoulder, 35. the hydraulic transmission device comprises a sealing ring positioning groove, 36, a second section of telescopic sleeve, 37, a third section of telescopic sleeve, 38, a shaft shoulder, 39, a telescopic shaft, 41, a steering motor, 42, a steering gear, 43, a driving wheel bracket, 54, an electric hydraulic machine, 55, a driving motor, 56, a fixed shaft, 57, a main planet carrier, 58, a planet gear, 59, a sun gear, 60, an outer gear ring, 61, an auxiliary planet carrier, 62, a wheel hub, 63 and a rubber wheel skin.

Detailed Description

In order to better understand the hydraulic lifting parking mechanism, the intelligent control system mentioned in the embodiments of the present application is the prior art, and the patent numbers of the published documents are: 201710865667.1 entitled "Intelligent parking System and control method thereof", application publication No. CN 107650906A, hereinafter referred to as "Intelligent control System".

In the preferred embodiment shown in fig. 1-2, a hydraulic power mechanism is arranged inside the telescopic positioning mechanism, the hydraulic power mechanism comprises a plurality of sections of telescopic sleeves provided with sealing rings, each telescopic sleeve is provided with an outer arm shoulder (33) and an inner arm shoulder (34), an oil inlet hole (32) is formed in the wall of each telescopic sleeve, the oil inlet hole (32) penetrates through the inner wall of the lower end of each telescopic sleeve, and hydraulic oil can be input into the inner diameter of each telescopic sleeve from the oil inlet hole (32).

A plurality of sealing ring positioning grooves (35) are formed in the inner arm shoulders (34) of the first telescopic sleeve (31), the second telescopic sleeve (36) and the third telescopic sleeve (37) and the outer arm shoulders (33) of the second telescopic sleeve (36) and the third telescopic sleeve (37), and the sealing ring positioning grooves (35) are used for installing sealing rings and have the function of preventing oil leakage when the telescopic sleeves move.

A second section of telescopic sleeve (36) is installed in a first section of telescopic sleeve (31) of the hydraulic power mechanism, a third section of telescopic sleeve (37) is installed in the second section of telescopic sleeve (36), a telescopic shaft (39) is installed in the third section of telescopic sleeve (37), a shaft shoulder (38) is arranged on the telescopic shaft (39), and a plurality of sealing ring positioning grooves (35) are formed in the shaft shoulder (38) of the telescopic shaft (39).

A second section of telescopic sleeve (36) of the hydraulic power mechanism can move upwards or downwards in the first section of telescopic sleeve (31), and when the second section of telescopic sleeve (36) extends to the maximum value, the outer arm shoulder (33) is blocked by the inner arm shoulder (34) of the first section of telescopic sleeve (31) and stops extending; the third section of telescopic sleeve (37) can move upwards or downwards in the second section of telescopic sleeve (36), and when the third section of telescopic sleeve (37) extends to the maximum value, the outer arm shoulder (33) is blocked by the inner arm shoulder (34) of the second section of telescopic sleeve (36) to stop extending; the telescopic shaft (39) can move upwards or downwards when being installed in the third section of telescopic sleeve (37), and when the telescopic shaft (39) extends to the maximum value, the shaft shoulder (38) is blocked by the inner arm shoulder (34) of the third section of telescopic sleeve (37) to stop extending.

An ascending oil inlet hole (12) and a descending oil inlet hole (13) are formed in a fixing plate (11) of the hydraulic power mechanism, the ascending oil inlet hole (12) and the descending oil inlet hole (13) are respectively connected with two output ports of the electric hydraulic machine (54), the hydraulic power mechanism ascends when the ascending oil inlet hole (12) takes oil, the hydraulic power mechanism contracts when the descending oil inlet hole (13) takes oil, the two output ports of the electric hydraulic machine (54) can independently carry out oil transportation work, and the output port of the descending oil inlet hole (13) does not work when the electric hydraulic machine (54) transports the oil to the output port of the ascending oil inlet hole (12); when the electric hydraulic machine (54) carries out oil transportation to the output port of the descending oil inlet hole (13), the output port of the ascending oil inlet hole (12) does not work. The first section of telescopic sleeve (31) of the hydraulic power mechanism is fixedly connected with the fixed plate (11), and the descending oil inlet hole (13) of the fixed plate (11) is communicated with an oil inlet hole (32) in the wall of the first section of telescopic sleeve (31).

The telescopic positioning mechanism comprises a fixed pipe (21), a telescopic large pipe (22), a telescopic middle pipe (23) and a telescopic small pipe (24), the upper end of the fixed pipe (21) can be fixedly connected with the fixed plate (11), the telescopic large pipe (22) is installed in the fixed pipe (21), the telescopic middle pipe (23) is installed in the telescopic large pipe (22), and the telescopic small pipe (24) is installed in the telescopic middle pipe (23).

The inner wall of the fixed pipe (21) is provided with a clamping groove (27) which is matched with a groove (26) arranged on the outer wall of the large telescopic pipe (22), the inner wall of the large telescopic pipe (22) is provided with a clamping groove (27) which is matched with a groove (26) arranged on the outer wall of the middle telescopic pipe (23), and the inner wall of the middle telescopic pipe (23) is provided with a clamping groove (27) which is matched with a groove (26) arranged on the outer wall of the small telescopic pipe (24); the large telescopic pipe (22) can move downwards or upwards in the fixed pipe (21), the middle telescopic pipe (23) can move downwards or upwards in the large telescopic pipe (22), and the small telescopic pipe (24) can move downwards or upwards in the middle telescopic pipe (23). The telescopic pipe has the advantages that the telescopic pipe is provided with the positioning fit of the groove (26) and the clamping groove (27), so that the fixed maximum stroke is realized between every two telescopic pipes, the positioning effect can be realized, and the telescopic pipes cannot relatively rotate and can only do linear telescopic motion.

The lower end face of a small telescopic pipe (24) of the telescopic positioning mechanism can be fixedly connected with the lower end of a telescopic shaft (39) of the hydraulic power mechanism, a fixed gear (25) is arranged on the lower end face of the small telescopic pipe (24), the fixed gear (25) and the telescopic shaft (39) can be fixedly connected through the upper part of a fixing bolt (30), and the telescopic shaft (39) moves upwards or downwards to drive the small telescopic pipe (24) and the fixed gear (25) to synchronously move upwards or downwards; furthermore, the lower part of the fixing bolt (30) can be connected with a bearing (3) on the inner surface of the driving wheel bracket (43), and the driving wheel bracket (43) can rotate around the centers of the fixing bolt (30) and the fixed gear (25).

In the preferred embodiment shown in fig. 3, when the hydraulic lifting parking mechanism needs to be contracted, the electric hydraulic machine (10) only inputs hydraulic oil into the descending oil inlet hole (13) of the fixed plate, the hydraulic oil is input between the inner arm shoulder (34) of the first section of telescopic sleeve (31) and the outer arm shoulder (33) of the second section of telescopic sleeve (36) through the oil inlet hole (32) of the first section of telescopic sleeve (31), because the inner arm shoulder (34) and the outer arm shoulder (33) are both provided with sealing rings, the hydraulic oil can lift up the inner arm shoulder (34) of the second section of telescopic sleeve (36), the second section of telescopic sleeve (36) moves upwards, and when the second section of telescopic sleeve (36) contracts upwards, the hydraulic oil in the center of the telescopic sleeve flows back to the oil storage tank of the electric hydraulic machine (54) through the ascending oil inlet hole of the electric hydraulic machine (54).

When the inner arm shoulder (34) of the second section of telescopic sleeve (36) is lifted upwards, hydraulic oil flows into a position between the inner arm shoulder (34) of the second section of telescopic sleeve (36) and the outer arm shoulder (33) of the third section of telescopic sleeve (37) through the oil inlet hole (32) of the outer pipe wall of the second section of telescopic sleeve (36), and the outer arm shoulder (33) of the third section of telescopic sleeve (37) is lifted upwards; when the inner arm shoulder (34) of the third section of telescopic sleeve (37) is jacked upwards, hydraulic oil flows into the space between the inner arm shoulder (34) of the third section of telescopic sleeve (37) and the shaft shoulder (38) of the telescopic shaft (39) through the oil inlet hole (32) in the outer pipe wall of the third section of telescopic sleeve (37), the shaft shoulder (38) of the telescopic shaft (39) is jacked upwards, the contraction motion of the hydraulic power mechanism is realized, and the contraction motion of the telescopic positioning mechanism is also driven.

In the preferred embodiment shown in fig. 4 to 5, when hydraulic oil is input into the oil inlet hole (12) on the fixed plate (14) through the oil pipe of the electric hydraulic machine, the second section of the telescopic sleeve (36), the third section of the telescopic sleeve (37) and the telescopic shaft (39) will stop extending when extending downwards to the maximum stroke under the action of the hydraulic oil, and when the second section of the telescopic sleeve (36), the third section of the telescopic sleeve (37) and the telescopic shaft (39) begin to extend, the telescopic shaft (39) will drive the large telescopic pipe (22), the middle telescopic pipe (23), the small telescopic pipe (24) and the telescopic shaft (39) of the telescopic positioning mechanism to synchronously extend to the maximum stroke and stop extending, so that the lifting motion of the hydraulic lifting parking mechanism is realized.

The steering gear mechanism is characterized in that a steering motor (41) is arranged on the driving wheel support (43), a steering gear (42) is fixedly mounted on the steering motor (41), and the steering gear (42) is meshed with the fixed gear (50).

The driving wheel support (43) is provided with a bearing (3), the bearing (3) can be installed in a matched mode with the fixing bolt (30), and the driving wheel support (43) can rotate in the bearing (3) of the fixing bolt (30).

When the steering motor (65) rotates, the steering gear (64) is driven to rotate around the fixed gear (50) in a meshed mode by taking the axis of the fixed gear (25) as the center, and therefore the driving wheel support (43) can steer in 360 degrees.

In the preferred embodiment shown in fig. 6, the upper part of the fixing bolt (30) can connect and fix three parts of the telescopic small pipe (24), the fixed gear (25) and the telescopic shaft (39), the lower part of the fixing bolt (30) can be connected with the bearing (3) in the driving wheel bracket (43), and the driving wheel bracket (43) can rotate around the fixing bolt.

In the preferred embodiment shown in fig. 7, the driving wheel is mounted on the driving wheel bracket (43), the driving wheel comprises a driving motor (55), a planetary gear (58), a sun gear (59), an outer gear ring (60), a main planet carrier (57) and a secondary planet carrier (61), the outer gear ring (60) is provided with a hub (62), and the hub (62) and a rubber wheel skin (63) are combined with each other.

Main planet carrier (57) openly sets up and is fixed with three axles, and main planet carrier (57) back is provided with a fixed axle (56), installs bearing (3) on fixed axle (56), bearing (3) are installed and are fixed in the shaft hole of wheel hub (62), can use fixed axle (56) to rotate as the axle center after wheel hub (62) are fixed with bearing (3), and fixed axle (56) can be fixed with the shaft hole cooperation on drive wheel support (43).

Driving motor (55) are installed at main planet carrier center, set up on the positive three axles of main planet carrier and install three planetary gear (58), three planetary gear (58) mesh with sun gear (59) at center respectively, sun gear (59) be connected fixedly with driving motor (12) of installation fixing in the middle of the planet carrier, planet gear (58) and outer ring gear (60) intermeshing, planetary gear (58) rotate and can drive outer ring gear (60).

The front of vice planet carrier (61) is provided with three shaft hole, and the shaft hole can be fixed with three positive mutually supporting of main planet carrier (57), has constituted the planet carrier when three positive shafts of main planet carrier (57) and the three shaft hole of the front setting of vice planet carrier (61) mutually support the installation fixed.

A fixed shaft (56) is arranged on the back of the auxiliary planet carrier (61), and the fixed shaft (56) on the back of the auxiliary planet carrier (61) can be matched and fixed with a shaft hole in the driving wheel support (42).

Because the fixed shaft (56) is fixedly connected with the driving wheel bracket (43), when the driving motor (55) rotates to drive the sun gear (59) to rotate, the sun gear (59) drives the planetary gears (58) which are meshed with each other, the planetary gears (58) drive the outer gear rings (60) which are meshed with each other to move, so that the hub (62) and the bearing (3) which are fixedly connected with the outer gear rings (60) are driven to rotate, and the movement of the driving wheel is realized.

In the preferred embodiment shown in fig. 8, the electric hydraulic machine (54) can independently control one hydraulic lifting parking mechanism, or one electric hydraulic machine (54) can simultaneously control a plurality of hydraulic lifting parking mechanisms, and in the present application, it is preferable that one electric hydraulic machine (54) simultaneously controls two hydraulic lifting parking mechanisms to work.

In the preferred embodiment shown in fig. 9 and 10, each vehicle is preferably provided with 4 hydraulic lifting parking mechanisms, the electric hydraulic machine (54) controls the two hydraulic lifting parking mechanisms simultaneously, the fixed frame (14) of the hydraulic lifting parking mechanism is fixedly arranged on the chassis (10), the contraction state of the hydraulic lifting parking mechanism is hidden in the chassis (10), and the vehicle can be driven normally.

The electric hydraulic machine (54), the driving motor (65) and the steering motor (41) are electrically connected with the controller, and the controller comprises an intelligent control system parking mode and a manual identification control parking mode.

When the space of a parking position is not large enough, the parking space can accommodate a vehicle, but the vehicle cannot be normally parked in the parking space by using a steering wheel, the vehicle is driven to a position parallel to the parking space, a transverse parking function (with a left transverse parking function or a right transverse parking function) of manually identifying and controlling a parking mode is started, 4 hydraulic lifting parking mechanisms arranged on a vehicle chassis lift the vehicle, after wheels leave the ground, steering motors (41) of the 4 hydraulic lifting parking mechanisms simultaneously control a driving wheel bracket to rotate for 90 degrees and stop, a driving motor (55) starts to control driving wheels to run slowly, when the lifted vehicle transversely runs to the parking space, the vehicle is manually controlled to stop parking, the vehicle transversely parks in the parking space, at the moment, a telescopic positioning mechanism and a hydraulic power mechanism start to contract, the vehicle starts to slowly descend, and tires of the vehicle land, the driving wheel leaves the ground and is hidden in the chassis (10) to realize manual identification and control of parking.

When a user needs to pick up a vehicle, the space of the front and rear vehicles is small, and the vehicle cannot be picked up normally, a transverse vehicle picking function (with a left transverse vehicle picking function or a right transverse vehicle picking function) in a manual identification control parking mode is started, the 4 hydraulic lifting parking mechanisms installed on a chassis lift the vehicle, after wheels leave the ground, steering motors (41) of the 4 hydraulic lifting parking mechanisms simultaneously control a driving wheel support to rotate for 90 degrees to stop, a driving motor (55) starts to control driving wheels to run at a slow speed, when the lifted vehicle runs transversely out of a parking space, the vehicle is stopped by manual control, at the moment, a telescopic positioning mechanism and a hydraulic power mechanism start to contract, the vehicle starts to slowly lower, tires of the vehicle land, the driving wheels leave the ground, and the driving wheels are hidden in the chassis (10) to realize manual identification control vehicle picking up.

When intelligent parking is needed, a driver can select a parking space through an intelligent control system parking mode, an intelligent parking function is started, a hydraulic lifting parking mechanism installed on a vehicle chassis (10) lifts a vehicle, wheels leave the ground, a steering motor (41) controls steering, the lifted vehicle moves under the mutual coordination of 4 driving wheels, the direction of the vehicle is adjusted under the control of the intelligent control system, the vehicle is parked in a designated parking space, when the vehicle enters the parking space, the intelligent control system controls the driving wheels to stop working, a telescopic positioning mechanism and a hydraulic power mechanism start to contract, the vehicle starts to slowly lower, the tires of the vehicle land, the driving wheels leave the ground, and the vehicle is hidden in the vehicle chassis (10) to realize intelligent parking.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.