CN114575664A

CN114575664A - Automobile sunshade

Info

Publication number: CN114575664A
Application number: CN202210235286.6A
Authority: CN
Inventors: 何向东; 周新飞; 黄堂虹; 童威云
Original assignee: Zhejiang Hooeasy Smart Technology Co Ltd
Current assignee: Zhejiang Hooeasy Smart Technology Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-06-03

Abstract

The invention discloses an automobile awning which is arranged on the side surface of an automobile body and comprises awning cloth, a roller and a gear box; the gear box comprises a box body, a transmission shaft, a first gear part and a second gear part, wherein the transmission shaft, the first gear part and the second gear part are arranged in the box body; the second gear part is coaxially connected with the end part of the roller, and the first gear part is meshed with the second gear part; the transmission shaft is sleeved in the first gear part by a spline, a polygonal raised lock pin part is arranged at the front end of the transmission shaft, and a locking concave cavity is fixedly arranged in the box body; the lock pin part on the transmission shaft is inserted into the locking concave cavity, and the gear box locks the rotation of the roller; the transmission shaft moves backwards for a certain distance under the action of external force, the lock pin part leaves the locking concave cavity to realize unlocking, a return spring is arranged on the transmission shaft to enable the transmission shaft to move forwards to be in a locking state, and the tarpaulin cannot be released due to vibration.

Description

Automobile sunshade

Technical Field

The invention relates to the field of automobile sunshades, in particular to a gear box for preventing vibration and displacement on an automobile sunshade.

Background

The awning can provide a wind-proof and rain-proof environment for people to enjoy leisure and entertainment, the basic structure of the awning comprises a frame and extensible or retractable awning cloth, and a winding device for winding and unwinding the awning cloth is arranged in the frame.

The utility model provides a notice number is CN 213296931U's electronic sunshade, it includes sunshade cloth cover, front edge and drive arrangement, and drive arrangement includes motor, the roller and at least one draw gear of coiling sunshade cloth cover, and the front edge is connected in the front side of sunshade cloth cover, and the rear side of sunshade cloth cover is connected in the roller, and motor drive roller forward rotates in order to coil sunshade cloth cover, and draw gear connects in the roller.

A transmission gear box for a sunshade with the authorization notice number of CN2830784Y is a transmission mechanism for manually controlling the folding and unfolding of awning cloth, and discloses a box body and a box cover.

The awning is usually at rest, and the awning cloth is at rest when the gearbox is not driven.

The prior station wagon or motor home is also provided with a sunshade, and the tarpaulin can be released due to the bumping of the vehicle movement.

Disclosure of Invention

In view of the problem that the awning can be released due to vibration, the invention provides the automobile awning capable of preventing vibration displacement, when a transmission assembly in a gear box on the awning is locked, a roller for retracting and releasing awning cloth on the awning is locked, and the awning cloth can not be released due to vibration.

The technical scheme adopted by the invention for solving the technical problems is as follows: the automobile awning is arranged on the side surface of an automobile body and comprises awning cloth, a roller and a gear box;

the awning cloth is wound on the roller and rotates along with the roller to realize retraction;

one end of the roller is connected with a gear box, and the gear box drives or locks the roller to rotate;

the gear box comprises a box body, a transmission shaft, a first gear part and a second gear part, wherein the transmission shaft, the first gear part and the second gear part are arranged in the box body;

the second gear part is coaxially connected with the end part of the roller, and the first gear part is meshed with the second gear part;

the first gear part rotates to drive the second gear part and drive the roller to rotate, so that the tarpaulin is controlled to be folded and unfolded;

the transmission shaft is sleeved in the first gear part by a spline so as to enable the transmission shaft and the first gear part to rotate synchronously in the radial direction and move axially relative to each other;

the front end of the transmission shaft is provided with a locking pin part which is raised in a polygonal shape, and a locking concave cavity matched with the locking pin part is fixedly arranged in the box body;

the lock pin part on the transmission shaft is inserted into the lock cavity, the transmission shaft is locked and can not rotate, and the gear box locks the rotation of the roller;

the transmission shaft moves backwards for a certain distance under the action of external force, the lock pin part leaves the lock cavity, and the transmission shaft and the first gear part can freely rotate so that the second gear part and the roller can rotate;

the transmission shaft is provided with a return spring, and after the external force is removed, the return spring can enable the transmission shaft to move forwards and be in a locking state.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the automobile awning comprises a rear mounting beam fixed on the side face of an automobile body and a front supporting piece arranged at the front end of awning cloth, wherein the rear mounting beam is provided with a mounting cavity, a roller is arranged in the rear mounting beam, the awning cloth extends out of a window outside the rear mounting, and the front supporting piece is positioned outside the window.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the foldable awning comprises a front support, a rear support and a side support, and is characterized by further comprising a telescopic or foldable side support for supporting the unfolded awning cloth, wherein the side support is arranged between the front support and the side face of the vehicle body.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the middle of the second gear component is provided with a square hole, the end part of the roller is provided with a square column connector matched with the square hole, and the square column connector is inserted into the square hole so that the second gear component and the roller rotate synchronously.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the rear end of the transmission shaft penetrates through the box body to extend out and is connected with a hinge ring, and the transmission shaft is connected with the hinge ring through a shaft pin.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: a check ring is arranged on the transmission shaft;

a first shaft sleeve is fixedly arranged at the rear end of the inner cavity of the box body;

the transmission shaft penetrates through the first shaft sleeve, and the return spring is arranged between the convex ring and the first shaft sleeve;

in an unlocking state, the transmission shaft moves backwards under the action of external force, and the check ring extrudes the return spring;

after the external force is removed, the return spring restores to deform and acts on the retainer ring to urge the transmission shaft to move forwards.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the front end of the inner cavity of the box body is provided with a second shaft sleeve, the transmission shaft penetrates through the second shaft sleeve, and the first shaft sleeve and the second shaft sleeve support the transmission shaft.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the both ends of second gear part are equipped with the third axle sleeve, the third axle sleeve supports the second gear part, so that the second gear part is in order rotationally to set up in the box, the window and the second gear part coaxial coupling that the box was passed to the roller.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the transmission shaft is provided with an annular groove, and the check ring is embedded into the annular groove.

The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the box body comprises an upper cover and a bottom cover, and the upper cover and the bottom cover are connected through a fastener.

Compared with the prior art, the invention has the advantages that the lock pin part on the transmission shaft is inserted into the locking concave cavity, the transmission shaft is locked and can not rotate, even if the vehicle body vibrates, the vehicle body can not rotate, and therefore, the awning can be prevented from being released due to vibration stress in a driving state; when the awning needs to be unfolded, the transmission shaft moves backwards for a certain distance under the action of acting force, the lock pin part leaves the locking concave cavity, the rotation limitation on the transmission shaft is removed, the transmission shaft can be freely rotated at the moment, and finally the roller rotates to fold and unfold the awning cloth.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of a preferred embodiment of the present invention showing a vehicle awning in a collapsed state;

FIG. 2 is a schematic view of a preferred embodiment of the sunshade of a vehicle according to the present invention in a deployed state;

FIG. 3 is a schematic view of a drum and gearbox assembly of a preferred embodiment of the present invention;

FIG. 4 is an exploded view of the drum and gearbox assembly of a preferred embodiment of the present invention;

FIG. 5 is an exploded view of a gear box of a sunshade for a vehicle according to a preferred embodiment of the present invention;

FIG. 6 is a cross-sectional view of a gear box of a preferred embodiment of the present invention in a locked state;

FIG. 7 is a cross-sectional view of a gearbox of a preferred embodiment of the present invention in an unlocked state;

fig. 8 is a schematic view of a drive shaft and a first gear member of a preferred embodiment of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the sunshade 200 for a vehicle, which is provided on a side of a vehicle body 100, includes a tarpaulin 1, a roll 2 and a gear box 3. Wherein the tarpaulin 1 is wound on the roller 2 and is wound and unwound along with the rotation of the roller 2. And one end of the roller 2 is connected with a gear box 3, and the gear box 3 drives or locks the roller 2 to rotate.

Specifically, as shown in fig. 5 to 7, the gear box 3 includes a box body 31, and a transmission shaft 32, a first gear member 34, and a second gear member 33 provided in the box body 31. The case 31 is mounted on a holder 6, and the holder 6 is fixed to a vehicle body side surface.

Wherein the second gear part 33 is coaxially connected with the end part of the roller 2, the second gear part 33 is fixed with the roller 2 in the radial direction, and when the second gear part 33 rotates in the circumference, the roller 2 rotates synchronously.

The first gear member 34 is disposed outside the second gear member 33 and has a matching shape with the second gear member 33, and the outer teeth of the two are engaged with each other to realize transmission.

When the first gear part 34 rotates under the action of the acting force, the first gear part drives the second gear part 33 and drives the roller 2 to rotate, and then the tarpaulin 1 is controlled to be folded and unfolded.

The rotation of the first gear member 34 is controlled by a transmission shaft 32, and the transmission shaft 32 is sleeved in the first gear member 34 by a spline S, so that the two rotate synchronously in the radial direction and can move relatively to the axial direction.

As shown in fig. 6, a locking pin portion m protruding in a polygonal shape is disposed at the front end of the transmission shaft 32, and a locking cavity n matching with the locking pin portion m is fixedly disposed in the box 31; the locking pin m on the transmission shaft 32 is inserted into the locking cavity n, the transmission shaft 32 is locked and can not rotate, and the gear box 3 locks the rotation of the roller 2.

It should be noted that in this locked state, the rotation of the transmission shaft 32 is restricted, so that even if the vehicle body 100 vibrates, it is not rotated, and thus the awning is prevented from being released from the awning cloth 1 by the vibration force in the traveling state.

When the awning is to be unfolded, as shown in fig. 7, a backward external force is applied to the transmission shaft 32, the transmission shaft 32 moves backwards by a certain distance under the action of the external force, the locking pin m leaves the locking concave cavity n, the rotation limitation on the transmission shaft 32 is released, and the transmission shaft 32 can be freely rotated, namely, the first gear part 34 can be freely rotated, and then the second gear part 33 is engaged and driven, so that the roller 2 is finally rotated to fold and unfold the awning cloth 1.

And, a return spring 35 is disposed on the transmission shaft 32, and after the external force is removed, the return spring 35 can make the transmission shaft 32 move forward and be in a locking state. That is, the drive shaft 32 is unlocked only when the operation of unfolding the awning is performed, and is always locked.

As shown in fig. 1 to 4, the sunshade 200 for a vehicle further includes a rear mounting beam 4 fixed to a side surface of the vehicle body 100 and a front supporting member 5 provided at a front end of the tarpaulin 1. The rear mounting beam 4 is provided with a mounting cavity, and the roller 2 is arranged in the rear mounting beam 4.

One end of the tarpaulin 1 is fixed on the front supporting piece 5, the other end is wound on the roller 2, and two ends of the roller 2 are respectively connected in the rear mounting beam 4 through the support. The tarpaulin 1 is extended from the window of the rear installation outside, and the front supporter 5 is located outside the window.

Meanwhile, the sunshade 200 for a vehicle further includes a telescopic or foldable side support for supporting the unfolded tarpaulin 1, which is provided between the front support 5 and the side of the vehicle body 100, for supporting the tarpaulin 1 in the unfolding direction to be maintained at a predetermined angle with the side of the vehicle body 100.

Preferably, as shown in fig. 5, the case 31 includes an upper cover a and a lower cover b, which are coupled by a fastener. The box 31 has an opening on one side through which the roll 2 is inserted into the box 31 and connected to the second gear member 33.

Preferably, the rear end of the driving shaft 32 extends through the housing 31 and is connected to a hinge 36, and the driving shaft 32 is connected to the hinge 36 through a shaft pin 37. This is done by the user pulling the drive shaft 32 axially and rotating it radially through the hinge ring 36 to unlock and actuate it.

As shown in fig. 4 and 5, a square hole is provided in the middle of the second gear member 33, a square column connector h adapted to the square hole is provided at the end of the roller 2, and the square column connector is inserted into the square hole to enable the second gear member 33 and the roller 2 to rotate synchronously.

As shown in fig. 5-7, the transmission shaft 32 is provided with a retainer ring 38; a first shaft sleeve 39 is fixedly arranged at the rear end of the inner cavity of the box body 31; the transmission shaft 32 passes through the first shaft sleeve 39, and the return spring 35 is sleeved outside the transmission shaft 32 and is arranged between the retainer ring 38 and the first shaft sleeve 39. In the unlocking state, the transmission shaft 32 moves backwards under the action of external force, and the retainer ring 38 extrudes the return spring 35; when the external force is removed, the return spring 35 is deformed again, and the retainer 38 is used to urge the transmission shaft 32 to move forward.

Preferably, as shown in fig. 8, the outer wall of the transmission shaft 32 is provided with an annular groove 41, and the retainer ring 38 is embedded in the annular groove 41. Thereby effecting connection of the retainer ring 38 to the drive shaft 32.

As shown in fig. 5, a second bushing 30 is provided at a front end of the inner cavity of the case 31, the transmission shaft 32 passes through the second bushing 30, and the first bushing 39 and the second bushing 30 support the transmission shaft 32. And both ends of the second gear part 33 are provided with third bushings 40. the third bushings 40 support the second gear part 33 so that the second gear part 33 is rotatably disposed in the cabinet 31, and the roll 2 is coaxially connected with the second gear part 33 through the window of the cabinet 31.

The present invention provides a sunshade for a vehicle, which is described in detail above, wherein the description of the embodiments is only for the purpose of understanding the present invention and the core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The automobile awning is arranged on the side face of an automobile body and is characterized by comprising awning cloth, a roller and a gear box;

the gearbox comprises a box body, a transmission shaft, a first gear part and a second gear part, wherein the transmission shaft, the first gear part and the second gear part are arranged in the box body;

2. A sunshade for a vehicle according to claim 1, wherein said sunshade for a vehicle comprises a rear mounting beam fixed to a side surface of a vehicle body, said rear mounting beam having a mounting cavity, and a front support member provided at a front end of a cloth, said roller being provided in said rear mounting beam, said cloth protruding from a window opening at an outer side of said rear mounting beam, said front support member being provided outside said window opening.

3. The sunshade of claim 2, further comprising side support members of a telescopic or foldable type for supporting the unfolded sheet, said side support members being disposed between said front support member and the side of the vehicle body.

4. An awning for car, according to claim 1, wherein a square hole is provided in the middle of said second gear member, and a square post connector fitted into said square hole is provided at the end of said roller, said square post connector being inserted into said square hole to allow said second gear member and said roller to rotate synchronously.

5. A sunshade for a vehicle according to claim 1, wherein a rear end of said drive shaft extends through said housing and is connected to a hinge, said drive shaft being connected to said hinge by a pivot pin.

6. An awning for a vehicle as claimed in claim 1, wherein the drive shaft is provided with a retaining ring;

7. An awning for a vehicle according to claim 6, wherein a second boss is provided at the front end of the inner chamber of the housing, the drive shaft passing through the second boss, and the first boss and the second boss support the drive shaft.

8. A sun shade for motor vehicles according to claim 5, wherein the second gear member is provided at both ends thereof with third bosses supporting the second gear member so as to be rotatably disposed in the housing, and the roller is coaxially coupled to the second gear member through a window of the housing.

9. An awning for a vehicle according to claim 6, wherein the drive shaft is provided with an annular groove in which the retainer ring is inserted.

10. The sunshade of claim 4, wherein said housing includes a top cover and a bottom cover, said top cover and said bottom cover being connected by fasteners.