阅读说明：本技术 汽车用升降杯托 (Lifting cup stand for automobile ) 是由 谈晓辕 于 2020-06-16 设计创作，主要内容包括：本发明提供一种汽车用升降杯托,包括：杯托基座,杯托基座为两端开口的筒状结构,杯托基座的内壁面上设置有沿杯托基座的周向延伸的螺旋槽,并且螺旋槽的一端靠近杯托基座的上端,另一端靠近杯托基座的下端。升降部,设置于杯托基座中,升降部包括托盘组件、旋转组件和驱动组件,其中,托盘组件设置于旋转组件的上方并与旋转组件连接,旋转组件的外周与螺旋槽匹配,驱动组件驱动旋转组件沿螺旋槽转动,在转动过程中使旋转组件沿杯托基座的轴向逐渐上下移动,带动托盘组件沿杯托基座的轴向上下运动。本发明提供的汽车用升降杯托,采用旋转方式实现升降,占用内部空间较小,结构紧凑,有较好的布置灵活性。(The invention provides a lifting cup stand for an automobile, which comprises: the cup stand comprises a cup stand base, wherein the cup stand base is of a tubular structure with two open ends, a spiral groove extending along the circumferential direction of the cup stand base is arranged on the inner wall surface of the cup stand base, one end of the spiral groove is close to the upper end of the cup stand base, and the other end of the spiral groove is close to the lower end of the cup stand base. The lifting part is arranged in the cup stand base and comprises a tray component, a rotating component and a driving component, wherein the tray component is arranged above the rotating component and connected with the rotating component, the periphery of the rotating component is matched with the spiral groove, the driving component drives the rotating component to rotate along the spiral groove, the rotating component gradually moves up and down along the axial direction of the cup stand base in the rotating process, and the tray component is driven to move up and down along the axial direction of the cup stand base. The lifting cup stand for the automobile provided by the invention is lifted in a rotating mode, occupies a small internal space, is compact in structure and has good arrangement flexibility.)

1. A lifting cup stand for an automobile is characterized by comprising:

the cup stand comprises a cup stand base, wherein the cup stand base is of a cylindrical structure with two open ends, a spiral groove extending along the circumferential direction of the cup stand base is arranged on the inner wall surface of the cup stand base, one end of the spiral groove is close to the upper end of the cup stand base, and the other end of the spiral groove is close to the lower end of the cup stand base;

a lifting part arranged in the cup stand base, the lifting part comprises a tray component, a rotating component and a driving component, wherein,

the tray assembly is arranged above the rotating assembly and connected with the rotating assembly, the periphery of the rotating assembly is matched with the spiral groove, and the driving assembly drives the rotating assembly to rotate along the spiral groove, so that the rotating assembly drives the tray assembly to move up and down along the axial direction of the cup holder base.

2. The lift cup holder of claim 1, wherein said drive assembly comprises at least one motor, at least one drive gear, and a follower gear, wherein,

the motor is arranged on one side of the tray assembly, which faces the lower end of the cup holder base, and is connected with the corresponding driving gear to drive the driving gear to rotate; the follow-up gear is arranged on one side of the rotating assembly, which faces the upper end of the cup holder base;

the driving gear is meshed with the follow-up gear, so that the follow-up gear is linked to rotate through the rotation of the driving gear, and the rotating assembly is driven to rotate along the spiral groove.

3. The lift cup holder of claim 2, wherein said drive assembly further comprises at least one planetary gear, said planetary gear being in meshing engagement with said follower gear, and said planetary gear and said drive gear being evenly distributed about a circumference of said follower gear.

4. The lifting cup holder for the automobile as claimed in claim 2, wherein the inner wall surface of the cup holder base is provided with a guide groove extending along the axial direction of the cup holder base, the outer periphery of the tray assembly is provided with a slide block matched with the guide groove, and the tray assembly is rotatably connected with the rotating assembly; wherein

The sliding block slides up and down in the guide groove, so that the tray assembly slides up and down along the axial direction of the cup stand base and the rotation of the tray assembly relative to the cup stand base is limited.

5. The lifting cup holder for automobile as claimed in claim 4,

an annular conductive groove extending along the extending direction of the guide groove is formed in the guide groove, and the annular conductive groove sequentially comprises a first site, a second site, a third site and a fourth site along the direction from the upper end to the lower end of the cup holder base; wherein the content of the first and second substances,

the first position point is positioned at the highest point of the annular conductive groove and is positioned at one side close to the upper end of the cup holder base; the fourth point is close to the lowest point of the annular conductive groove far away from the highest point; the second position point is close to the first position point, and is positioned on one side of the annular conductive groove on the circumferential direction of the cup holder base together with the fourth position point; the third position point is close to the fourth position point and is positioned on the other side of the annular conductive groove on the circumferential direction of the cup holder base together with the first position point; and the number of the first and second electrodes,

a first conductive strip is arranged between the second position point and the position close to the fourth position point, a second conductive strip is arranged between the third position point and the position close to the first position point, and the directions of currents in the first conductive strip and the second conductive strip are opposite;

an elastic conductive terminal is arranged in the tray assembly, one end of the elastic conductive terminal is exposed outside the sliding block and can move along the annular conductive groove, and the elastic conductive terminal is electrically connected with the motor;

when the elastic conductive terminal is located at the second position point, the elastic conductive terminal conducts the first conductive bar and the motor, and the motor rotates along a first direction to drive the rotating assembly to rotate, so that the rotating assembly drives the tray assembly to move downwards along the axial direction of the cup holder base;

when the elastic conductive terminal moves to the fourth point, the first conductive strip is disconnected with the motor, and the motor stops running;

when the elastic conductive terminal moves to the third point, the elastic conductive terminal conducts the second conductive bar and the motor, and the motor rotates along a second direction to drive the rotating assembly to rotate, so that the rotating assembly drives the tray assembly to move upwards along the axial direction of the cup holder base;

when the elastic conductive terminal moves to the first position, the second conductive strip is disconnected with the motor, and the motor stops running;

the first direction is opposite to the second direction.

6. The lifting cup holder for the automobile as claimed in claim 5, wherein the lifting part further comprises a limiting assembly, a connecting shaft and a return spring;

one end of the connecting shaft is fixedly connected with the middle of one side of the tray assembly, which faces the lower end of the cup stand base, and the connecting shaft sequentially penetrates through the return spring and the rotating assembly;

the limiting assembly is arranged below the rotating assembly and can move up and down along the axial direction of the cup holder base, and the limiting assembly comprises a shell, a limiting push block, four sliding locking blocks and a limiting block; wherein the content of the first and second substances,

the periphery of the shell is adjacent to the inner wall of the cup holder base;

the limiting push block is arranged in the center of the shell and can move up and down relative to the shell, and a cavity is arranged on one upward side of the limiting push block and used for accommodating the other end of the connecting shaft and fixedly connected with the connecting shaft; the periphery of the limiting push block is provided with an outer conical surface extending towards the upper side, and the upper side of the outer conical surface is provided with a step surface along the periphery;

the four sliding locking blocks are mutually abutted and surround the periphery of the limiting push block, each sliding locking block comprises a clamping part and an elastic part, the clamping part comprises a clamping jaw at the upper side, a clamping buckle at the lower side, a first inner conical surface between the clamping jaw and the clamping buckle and a second inner conical surface at the lower side of the clamping buckle, the clamping buckle is matched with the conical bottom of the outer conical surface, and the first inner conical surface and the second inner conical surface are matched with the outer conical surface;

the elastic part is arranged between the clamping part and the periphery of the shell and comprises a spring;

the limiting block is arranged above the sliding locking block and between the limiting push block and the periphery of the shell, the limiting block comprises an annular pressing plate arranged above the elastic part and four elastic cantilevers extending from the periphery of the pressing plate to the center, each elastic cantilever corresponds to one sliding locking block, the end part of each elastic cantilever is abutted against the step surface, and a clamping groove matched with the clamping jaw is arranged at the position, corresponding to the clamping jaw, of each elastic cantilever; wherein the content of the first and second substances,

when the elastic conductive end is located at the first position point, the outer conical surface is connected with the first inner conical surface in a matching mode, and the upper end of the limiting push block is abutted to the rotating assembly; when the tray assembly is pressed to enable the elastic conductive terminal to move to the second position point, the limiting push block moves downwards relative to the shell by means of the connecting shaft, the outer conical surface slides downwards relative to the first inner conical lower surface to the conical bottom of the outer conical surface to be clamped with the buckle, and therefore the elastic conductive terminal is limited to be at the second position point, and the motor rotates along the first direction;

when the elastic conductive end moves to the fourth position; press tray subassembly, rely on the connecting axle makes spacing ejector pad for the casing activity down makes the outer conical surface for the lower surface downward sliding in the second, elasticity portion contracts, elasticity cantilever descends to the draw-in groove with the jack catch joint, the restriction the resilience of elasticity portion relies on reset spring's resilience force, spacing ejector pad rises to the outer conical surface with first inner conical surface accordant connection makes the electrically conductive end of elasticity removes the third site makes the motor follow the second direction rotates.

7. The lifting cup stand for the automobile as claimed in claim 6, wherein the limit push block and the connecting shaft are connected by means of screw threads; and the rotating assembly is fixedly connected with the pressure plate, the sliding locking block and the shell in sequence.

8. The lifting cup holder for automobile as claimed in any one of claims 5-7, wherein there are two of said guide slots, and two of said guide slots are respectively disposed on opposite sides of said base of said cup holder; the number of the elastic conductive terminals is two, the number of the motors and the number of the driving gears are two respectively, and each elastic conductive terminal corresponds to one motor and one driving gear; and the number of the planetary gears is two.

9. The lift cup holder of any one of claims 2-7, wherein said drive assembly further comprises a motor mounting plate fixedly attached to a side of said tray assembly facing said lower end of said cup holder base, and wherein said motor is disposed between said tray assembly and said motor mounting plate.

10. The lifting cup holder for automobile as claimed in any one of claims 1-7, wherein the base of the cup holder is formed by detachably and fixedly connecting two semi-annular structures.

Technical Field

The invention relates to the field of automobile manufacturing, in particular to a lifting cup stand for an automobile.

Background

With the adoption of the automobile storage device, the requirements on convenience, attractiveness and novelty of storage become higher and higher along with the taking of automobiles by people; increasingly higher requirements are also put on the design of the cup holder of the automobile. The existing cup stand is relatively solidified in space, has the main function of preventing a cup or beverage, has a pit or must be covered by an additional cover in a non-use state, and has a relatively complex structure, occupies a large inner space and affects the attractiveness.

The liftable saucer of current car is mostly relies on elevation structure to realize going up and down like the lifter, needs additionally to set up great space that is used for holding elevation structure, makes saucer overall structure great, occupies the car inner space.

Disclosure of Invention

The invention aims to solve the problems that the existing automobile lifting cup stand is large in structure and occupies the space in an automobile. The lifting cup stand for the automobile is capable of achieving lifting in a rotating mode, small in occupied inner space, compact in structure and good in arrangement flexibility.

In order to solve the above technical problem, the present invention provides a lifting cup stand for an automobile, comprising: the cup stand comprises a cup stand base, wherein the cup stand base is of a tubular structure with two open ends, a spiral groove extending along the circumferential direction of the cup stand base is arranged on the inner wall surface of the cup stand base, one end of the spiral groove is close to the upper end of the cup stand base, and the other end of the spiral groove is close to the lower end of the cup stand base.

The lifting portion is arranged in the cup stand base and comprises a tray assembly, a rotating assembly and a driving assembly, wherein the tray assembly is arranged above the rotating assembly and connected with the rotating assembly, the periphery of the rotating assembly is matched with the spiral groove, and the driving assembly drives the rotating assembly to rotate along the spiral groove, so that the rotating assembly drives the tray assembly to move up and down along the axial direction of the cup stand base.

By adopting the scheme, the lifting part is lifted by rotating the rotating assembly along the spiral groove in the inner wall of the cup stand base, the lifting part comprises the rotating assembly and the tray assembly, the thickness can be just rotated without additionally arranging space, and the occupied internal space is small; and the lifting part can lift along the inner wall of the cup stand base, the structure is compact, and the arrangement flexibility is good.

According to another embodiment of the invention, the lifting cup holder for the automobile is disclosed, and the driving assembly comprises at least one motor, at least one driving gear and a following gear. The motor is arranged on one side of the tray component, which faces the lower end of the cup stand base, and is connected with the corresponding driving gear to drive the driving gear to rotate; the follow-up gear is arranged on one side of the rotating assembly, which faces the upper end of the cup holder base. The driving gear is meshed with the follow-up gear to rotate through the driving gear to link the follow-up gear to rotate, so that the rotating assembly is driven to rotate along the spiral groove.

By adopting the scheme, the lifting part is driven to lift by adopting the motor as driving power, so that the use convenience is better, and the reliability is higher; meanwhile, the motor is arranged in the lifting part, so that the structure is compact.

According to another specific embodiment of the invention, the lifting cup holder for the automobile disclosed by the embodiment of the invention further comprises at least one planetary gear, the planetary gear is meshed with the follow-up gear, and the planetary gear and the driving gear are uniformly distributed in the circumferential direction of the follow-up gear.

By adopting the scheme, the planet gear is matched with the driving gear to drive the follow-up gear, so that the stability of the driving assembly can be improved under the condition that the driving gear and the driving motor are fewer, and the driving assembly is convenient to arrange.

According to another specific embodiment of the invention, in the lifting cup holder for the automobile disclosed by the embodiment of the invention, the inner wall surface of the cup holder base is provided with a guide groove extending along the axial direction of the cup holder base, the periphery of the tray assembly is provided with a slide block matched with the guide groove, and the tray assembly is rotatably connected with the rotating assembly. The sliding block slides up and down in the guide groove, so that the tray component slides up and down along the axial direction of the cup stand base and the rotation of the tray component relative to the cup stand base is limited.

By adopting the scheme, the tray assembly moves up and down along with the rotating assembly but does not rotate along with the rotating assembly, and the effect of the rotating assembly relative to the stator is achieved.

According to another specific embodiment of the invention, the lifting cup holder for the automobile is disclosed in the embodiment of the invention, the guide groove is internally provided with an annular conductive groove extending along the extending direction of the guide groove, and the annular conductive groove sequentially comprises a first site, a second site, a third site and a fourth site along the direction from the upper end to the lower end of the base of the cup holder. The first position point is positioned at the highest point of the annular conductive groove and is positioned at one side close to the upper end of the cup holder base; the fourth point is close to the lowest point of the annular conductive groove far away from the highest point; the second position point is close to the first position point, and is positioned on one side of the annular conductive groove on the circumferential direction of the cup holder base together with the fourth position point; the third position point is close to the fourth position point and is positioned on the other side of the annular conductive groove in the circumferential direction of the cup holder base together with the first position point.

And a first conductive strip is arranged between the second point and the position close to the fourth point, a second conductive strip is arranged between the third point and the position close to the first point, and the directions of currents in the first conductive strip and the second conductive strip are opposite. An elastic conductive terminal is arranged in the tray component, one end of the elastic conductive terminal is exposed outside the sliding block and can move along the annular conductive groove, and the elastic conductive terminal is electrically connected with the motor.

When the elastic conductive terminal is located at the second position point, the elastic conductive terminal conducts the first conductive bar and the motor, and the motor rotates along the first direction to drive the rotating assembly to rotate, so that the rotating assembly drives the tray assembly to move downwards along the axial direction of the cup holder base. When the elastic conductive terminal moves to the fourth point, the first conductive strip is disconnected with the motor, and the motor stops running.

When the elastic conductive terminal moves to the third point, the elastic conductive terminal conducts the second conductive bar and the motor, and the motor rotates along the second direction to drive the rotating assembly to rotate, so that the rotating assembly drives the tray assembly to move upwards along the axial direction of the cup holder base. When the elastic conductive terminal moves to the first position, the second conductive strip is disconnected with the motor, and the motor stops running. The first direction is opposite to the second direction.

By adopting the scheme, the motor can be electrified only by pressing the tray assembly during operation, the lifting part is driven by the motor to lift, and the operation is simple.

According to another specific embodiment of the invention, the lifting part of the lifting cup stand for the automobile disclosed by the embodiment of the invention further comprises a limiting component, a connecting shaft and a return spring; one end of the connecting shaft is fixedly connected with the middle of one side of the tray component, which faces the lower end of the cup stand base, and the connecting shaft sequentially penetrates through the return spring and the rotating component; the limiting assembly is arranged below the rotating assembly and can move up and down along the axial direction of the cup stand base, and the limiting assembly comprises a shell, a limiting push block, four sliding locking blocks and a limiting block.

Wherein, the periphery of the shell is adjacent to the inner wall of the cup stand base; the limiting push block is arranged in the center of the shell and can move up and down relative to the shell, and one upward side of the limiting push block is provided with a cavity for accommodating the other end of the connecting shaft and fixedly connecting with the connecting shaft, so that the limiting push block and the connecting shaft; the periphery of the limiting push block is provided with an outer conical surface extending towards the upper side, and the upper side of the outer conical surface is provided with a step surface along the periphery.

The four sliding locking blocks are mutually abutted and surround the periphery of the limiting push block, each sliding locking block comprises a clamping part and an elastic part, the clamping part comprises a clamping jaw at the upper side, a buckle at the lower side, a first inner conical surface between the clamping jaw and the buckle, and a second inner conical surface at the lower side of the buckle, the buckle is matched with the conical bottom of the outer conical surface, and the first inner conical surface and the second inner conical surface are matched with the outer conical surface; the elastic part is arranged between the clamping part and the periphery of the shell and comprises a spring.

The stopper sets up in the top of slip locking piece, between the periphery of spacing ejector pad and casing, the stopper including set up in the annular clamp plate of elasticity portion top and from four elastic cantilever of clamp plate outer circumference center extension, every elastic cantilever corresponds a slip locking piece, the tip and the step face butt of elastic cantilever to the position that elastic cantilever corresponds the jack catch is provided with the draw-in groove that matches with the jack catch.

When the elastic conductive end is at a first position, the outer conical surface is connected with the first inner conical surface in a matching manner, and the upper end of the limiting push block is abutted against the rotating assembly; pressing the tray subassembly, when making elasticity conductive terminal remove to the second position, rely on the connecting axle to make spacing ejector pad move down for the casing, make the outer conical surface slide to the awl end and the buckle joint of outer conical surface downwards for first interior conical surface to restriction elasticity is electrically conductive to be held at the second position, makes the motor rotate along first direction.

When the elastic conductive end moves to a fourth bit; pressing down tray subassembly, rely on the connecting axle to make spacing ejector pad for casing downstream, make the outer conical surface for the interior conical surface downward slip of second, elasticity portion shrink, the elasticity cantilever descends to draw-in groove and jack catch joint, restricts the resilience of elasticity portion, relies on reset spring's resilience force, spacing ejector pad rises to outer conical surface and first interior conical surface accordant connection for the electrically conductive end of elasticity removes the third site, makes the motor rotate along the second direction.

By adopting the scheme, the position of the elastic conductive terminal is locked after the tray component is pressed by utilizing the limiting component, so that the motor is stably powered on or powered off, the operation is simple, and the motor runs stably.

According to another specific embodiment of the invention, the lifting cup stand for the automobile disclosed by the embodiment of the invention is characterized in that the limiting push block and the connecting shaft are in threaded connection by virtue of screws; and the rotating assembly is fixedly connected with the pressure plate, the sliding locking block and the shell in sequence.

By adopting the scheme, the limiting push block in the limiting assembly is detachably connected with the connecting shaft by virtue of a screw; other parts of the tray assembly are fixedly connected with the rotating assembly and rotate along with the rotating assembly, so that the tray assembly stably rotates and ascends and descends.

According to another specific embodiment of the invention, the embodiment of the invention discloses a lifting cup stand for an automobile, wherein the number of the guide grooves is two, and the two guide grooves are respectively arranged on two opposite sides of a base of the cup stand; the number of the corresponding annular conductive grooves is two, the number of the elastic conductive terminals is two, the number of the motors and the number of the driving gears are two respectively, and each elastic conductive terminal corresponds to one motor and one driving gear; and the number of the planetary gears is two.

By adopting the scheme, the two guide grooves and the two annular conductive grooves are respectively oppositely arranged, and the two driving gears and the two planetary gears are uniformly distributed, so that the lifting part is balanced and stable in lifting operation.

According to another specific embodiment of the invention, the lifting cup stand for the automobile disclosed by the embodiment of the invention, the driving assembly further comprises a motor fixing plate, the motor fixing plate is fixedly connected with one side of the tray assembly facing the lower end of the cup stand base, and the motor is arranged between the tray assembly and the motor fixing plate

By adopting the scheme, the motor fixing plate is used for fixing the motor, so that the motor runs stably.

According to another embodiment of the invention, the embodiment of the invention discloses the lifting cup stand for the automobile, wherein the cup stand base is formed by detachably and fixedly connecting two semi-annular structures.

By adopting the scheme, the cup stand is convenient to disassemble and maintain.

The invention has the beneficial effects that:

the lifting cup stand for the automobile provided by the invention is lifted in a rotating mode, occupies a small internal space, is compact in structure and has good arrangement flexibility.

Drawings

FIG. 1 is a schematic sectional view of a lifting cup holder for an automobile according to the present invention;

FIG. 2 is a schematic structural view of a cup holder base of the lifting cup holder for an automobile according to the present invention;

FIG. 3 is an exploded view of the base of the cup holder of FIG. 2;

FIG. 4 is a schematic view of a partial cross-sectional structure of a base of the cup holder of the lifting cup holder for an automobile according to the present invention;

FIG. 5 is a schematic structural diagram of a tray assembly of the lifting cup holder for the automobile, a driving assembly arranged on the tray assembly and a connecting shaft;

FIG. 6 is an exploded view of the tray assembly and a portion of the drive assembly of FIG. 5;

FIG. 7 is a schematic structural diagram of a rotating assembly and a driving assembly of the lifting cup holder for an automobile, wherein the rotating assembly and the driving assembly are arranged on the rotating assembly;

FIG. 8 is an exploded view of the rotating assembly and a portion of the drive assembly of FIG. 7;

FIG. 9 is a schematic structural view of a stop assembly for an automobile according to the present invention;

figure 10 is an exploded view of the stop assembly of figure 9;

FIG. 11 is a schematic sectional view of a portion of a limiting assembly of the lifting cup holder for an automobile according to the present invention in a first state;

FIG. 12 is a schematic sectional view of a portion of a limiting assembly of the lifting cup holder for an automobile according to the present invention in a second state;

FIG. 13 is a schematic sectional view of a portion of a limiting assembly of the lifting cup holder for an automobile in a third state;

fig. 14 is a partial sectional view schematically illustrating the stopper assembly of the lifting cup holder for an automobile according to the present invention in a fourth state.

Description of reference numerals:

100: a cup holder base;

110: a helical groove;

120: a guide groove; 121: an annular conductive slot; 1211: a first site; 1212: a second site; 1213: a third site; 1214: a fourth site; 122: a first conductive strip; 123: a second conductive strip;

200: a lifting part;

210: a tray assembly; 211: a slider; 212: an elastic conductive terminal;

220: a rotating assembly; 221: connecting columns;

230: a drive assembly; 231: a motor; 232: a drive gear; 233: a follower gear; 234: a planetary gear; 235: a motor fixing plate; 236: a bearing;

240: a limiting component; 241: a housing; 242: a limiting push block; 2421: an outer conical surface; 2422: a step surface; 243: a slide lock block; 2431: a clamping part; 24311: a claw; 24312: buckling; 24313: a first inner conical surface; 24314: a second inner conical surface; 2432: an elastic portion; 24321: a spring; 244: a limiting block; 2441: pressing a plate; 2442: a flexible cantilever; 24421: a card slot;

250: a connecting shaft;

260: a return spring; 261: a return spring tray.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.