CN218558515U

CN218558515U - Rolling type recovery vehicle door awning

Info

Publication number: CN218558515U
Application number: CN202222886062.XU
Authority: CN
Inventors: 王李; 唐燕宁; 张小龙; 綦家鸣; 陈俊豪; 李文鹏
Original assignee: Anhui Agricultural University AHAU
Current assignee: Anhui Agricultural University AHAU
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-03
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a rolling-up recovery vehicle door awning, which relates to the technical field of rain gear and comprises a contraction bin and a fixed frame which are respectively arranged and fixed on the outer side surfaces of a vehicle body and a door frame of a vehicle door of an automobile, and a curtain which is arranged and connected with the contraction bin through a coil spring; the front curtain and the rear curtain of the curtain are respectively attached to the front end edge or the rear end edge of the curtain in a flattening manner through coil springs fixedly connected, and are rotatably installed in the contraction cabin, and the outer edges of the coil springs are detachably installed and connected with the fixing frame through connecting structures. The utility model discloses both guaranteed when the door is opened, the whole curtain expandes for the type fan ring type lamellar structure with the regional high adaptation of fan ring type between automobile body and door, realize better effect of sheltering from, when making to utilize wind spring elasticity to realize the curtain to retrieve again, preceding curtain and back curtain are just retracting the part of lapping and are retracting the lapping in order to be close to rectangular lamellar structure noncoaxially respectively to the axis department of the wind spring of self installation smoothly retract the book and establish, the problem of the lapping that can't retract of integral fan-shaped curtain has been solved.

Description

Rolling type recovery vehicle door awning

Technical Field

The utility model relates to a rain gear technical field, concretely relates to door canopy that is used for sheltering from rainwater at driver's in-process of getting on or off bus.

Background

The automobile is a non-rail bearing vehicle with four or more wheels driven by power, is widely used for carrying people and/or goods, traction and other special fields, and provides great convenience for the life of people.

The automobile has a body structure with good sealing performance, has certain capability of shielding wind, rain and snow, and can greatly improve the travel experience in severe weather such as rainstorm, heavy snow and the like. However, in heavy rain and snow weather, even if the driver opens the umbrella to reach the automobile parking position, the driver cannot be prevented from being wetted by rain and snow in the process of getting on or off the automobile, and the body health of the driver is not facilitated; in addition, the door of the driver is in an open state in the process of getting on or off the vehicle, rain and snow easily enter the vehicle body under the condition of no protection, and the protection of the environment in the vehicle and the comfort of the vehicle are not facilitated.

The main method for solving the problems is to add a door rain cover at the door of the automobile, the existing door rain cover is mostly of a folding telescopic structure, although the automobile door rain cover has the function of shielding rain and snow, the automobile door rain cover is dangerous to fall when being unfolded, the automobile door rain cover is easy to return, and the use safety and the stability are not ideal enough.

By prior art search, there are the following known solutions:

prior art 1:

application No.: CN201220107847.6, application date: 2012.03.21, published (bulletin) day: 2013.01.23, this prior art discloses a novel car foldable flexible canopy that opens door, flexible canopy is the ring sector who has a plurality of hems, a fan-shaped straight flange of this ring is fixed at the upper limb of door, another straight flange is connected in the receiver at automobile body top, the outside straight flange of flexible canopy wears to draw through two copper wires and connects in the receiver through spring pulling force in the fan piece, make it open the canopy when opening the door, just can receive the canopy in the box when closing the door, do not receive the rainy puzzlement and elegant appearance of opening the door in rainy day in the use. Compared with the prior art, the utility model discloses the beneficial technological effect who possesses is: the annular fan-shaped telescopic canopy arranged between the vehicle door and the vehicle roof can play a role of shielding wind and rain, and the vehicle door cannot be drenched when opened in rainy days; the rain shed is provided with a plurality of folding edges, the vehicle door can be freely stretched and contracted when opened and closed, and can be opened and closed like a folding fan, so that the opening and closing of the vehicle door and the driving safety are not influenced.

However, the awning in the prior art is of a folding structure, so that the awning has a falling risk in the process of recovery, and the use stability is not ideal enough.

Prior art 2

Application No.: CN201911095691.7, application date: 2019.11.11, published (bulletin) day: 2020.01.10, this prior art discloses an automobile with function of covering rain opens door, including the indoor ceiling of automobile, door and automobile control unit and establish the rainfall sensor on the automobile, still include the electro-magnet and be used for accomodating the receiver of foldable flexible canopy, electro-magnet and rainfall sensor all link to each other with automobile control unit, the electro-magnet is established at the door top border, the receiver is established on the indoor ceiling of automobile, the receiver outside is equipped with the opening, the interior border of foldable flexible canopy is established in the receiver, even there is the board of opening relative with the electro-magnet on the outside of foldable flexible canopy, the opening and the board of opening of receiver correspond, be equipped with the steel sheet in the board of opening. Effectively avoiding being drenched by rainwater or drenching the interior of the vehicle.

However, the awning in the prior art is also of a folding structure, so that the awning can accurately enter the storage box when being difficult to be recovered.

The above technical scheme does not influence the novelty of the invention through the search.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just in order to avoid the weak point that above-mentioned prior art exists, provide a door canopy is retrieved to roll up formula that contracts.

The utility model discloses a solve technical problem and adopt following technical scheme:

a rolling-up type recovery vehicle door awning comprises a contraction cabin and a fixing frame which are respectively installed and fixed on the outer side surfaces of a vehicle body and a door frame of a vehicle door of an automobile, and a curtain which is installed and connected with the contraction cabin through a coil spring;

the contraction cabin is of a strip-shaped hollow structure with a cavity inside, is positioned above the vehicle door, corresponds to the fixed frame and is provided with an opening facing the fixed frame; the fixing frame is of a strip structure;

the curtain passes through the opening and is in an inclined state with a low front part and a high back part, the inner edge of the curtain is positioned in the cavity, and the outer edge of the curtain is detachably connected with the fixed frame through a connecting structure;

the curtain comprises a front curtain positioned at the front part in the contraction cabin and a rear curtain positioned at the rear part in the contraction cabin; two pairs of coil springs are followed the length of shrink storehouse is to setting gradually and rotate and install to the cavity in, every is every the equal coaxial line setting of coil spring, is located anterior a pair of coil spring is used for installing the front curtain in the shrink storehouse, and this to the axis adaptation door of coil spring sets up along anterior crooked radian at the door, is located a pair of coil spring at rear portion is used for installing the back curtain in the shrink storehouse, and should set up along the crooked radian at rear portion on the axis adaptation door of coil spring, the front end border or the rear end border of coil spring with flat laminating front curtain or back curtain are connected fixedly with front curtain or back curtain.

Furthermore, elastic band structures which can stretch in the inner direction and the outer direction are arranged in the middle and the rear parts of the front curtain and the rear curtain; when the vehicle door is closed, the curtain is of a rectangular sheet structure with the inner side wound on the coil spring, and the front curtain and the rear curtain are respectively of a rectangular sheet structure with the inner side wound on the coil spring; after the door is opened, the curtain is the class fan ring type lamellar structure who uses the pivot of door as the centre of a circle, preceding curtain and back curtain are non-concentric fan ring type lamellar structure respectively, just the radius of curvature of the fan ring type lamellar structure that the preceding curtain formed is greater than the radius of curvature of the fan ring type lamellar structure that the back curtain formed.

Further, the elastic cord structure includes each elastic cord that sets up along the inside and outside, the elastic cord is by the front end of front curtain or back curtain to the rear end and inboard all set up gradually densely to the outside.

Further, the coil springs are rotatably installed in the cavity through shafts, the shafts comprise front shafts located in the front portion of the shrinking bin and rear shafts located in the rear portion of the shrinking bin, the front shafts and the rear shafts are fixedly arranged in the cavity and are fixedly connected to the inner side walls of the shrinking bin, and the two pairs of the coil springs are rotatably installed and connected with the front shafts or the rear shafts through bearings respectively.

Furthermore, the front shaft and the rear shaft are arranged in a manner that the front part is lower than the rear part, and the rear end of the front shaft is positioned below the front end of the rear shaft; the front end edge of back curtain leads to the length to be equipped with the weight gain rubber tape of flagging laminating to preceding curtain top.

Furthermore, the inner ring of the bearing is fixedly connected with the corresponding front shaft or rear shaft, and the outer ring of the bearing is fixedly connected with the corresponding inner end part of the coil spring.

Furthermore, the length of the coil spring is consistent with the width from the inner edge to the outer edge of the front curtain or the rear curtain, and the outer end of the coil spring is fixedly connected with the outer edge of the front curtain or the rear curtain.

Further, the length of each coil spring is increased from front to back in sequence.

Furthermore, the connection structure comprises hooks and buckle grooves which are arranged in pairs, the hooks are connected and fixed to the extending position of the curtain, the buckle grooves are correspondingly formed in the positions, corresponding to the hooks, of the fixing frame, the hooks and the buckle grooves are clamped and connected in a one-to-one correspondence mode, and the extending position of the curtain is in limit connection with the fixing frame.

Furthermore, the coil spring is sewn and fixed in the front curtain or the rear curtain along the front end edge or the rear end edge of the front curtain or the rear curtain in a flattened shape.

The utility model provides a door canopy is retrieved to roll up formula that contracts has following beneficial effect:

1. the utility model discloses a curtain is two segmentation structures including front curtain and back curtain, and front curtain and back curtain are rolled up to front axle and rear axle through the wind spring respectively, when having both guaranteed that the door is opened, the curtain wholly expandes to the type fan ring type lamellar structure of the regional high adaptation of fan ring type between automobile body and door, realizes better sheltering from the effect, when making to utilize wind spring elasticity to realize the curtain again, front curtain and back curtain are not coaxial respectively to the axis department roll of the self-mounted wind spring, have solved the unable problem of rolling up of integral fan-shaped curtain;

2. the utility model discloses in the middle part and the rear portion of front curtain and back curtain by preceding to the back, from interior to exterior the dense elastic cord that sets gradually, in the course of curtain expansion, each elastic cord extends along the inside and outside, make the curtain whole expand into the fan-like annular sheet structure that suits with the fan-like annular region between door and automobile body by rectangular sheet structure, in the course of curtain retraction, each elastic cord contracts along the inside and outside, make the front curtain and the back curtain positive retraction lapping part more be close to rectangular sheet structure, ensure the smooth retraction of curtain;

3. the utility model discloses a low back height setting before the front axle is equal with the rear axle, the rear end of front axle is located the front end below of rear axle, and the front end of back curtain end is equipped with flagging laminating to the weight gain rubber area at front curtain top along leading to the length, has ensured that the curtain wholly is the high structure in low back before seamless, when possessing the good effect of sheltering from, can realize the water conservancy diversion drainage at curtain top betterly.

Drawings

FIG. 1 is a schematic view of the curtain of the present invention when it is folded;

fig. 2 is a schematic structural view of the curtain of the present invention when it is unfolded;

fig. 3 is a schematic view of the partial cross-sectional structure of the present invention.

In the figure:

1. a contraction cabin 11 and an opening; 2. curtain, 21, front curtain, 22, back curtain; 4. hooking; 5. a weight-increasing rubber band; 6. a fixing frame 61 and a clamping groove; 7. a rotating shaft 71, a front shaft 72 and a rear shaft; 10. a coil spring; 12. elastic band structure.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the structural relationship is as follows: the curtain comprises a contraction cabin 1 and a fixing frame 6 which are respectively installed and fixed on the outer side surfaces of a door frame of a car body and a car door of an automobile, and a curtain 2 which is installed and connected with the contraction cabin 1 through a coil spring 10;

the contraction cabin 1 is in a strip-shaped hollow structure with a cavity inside, is positioned above the vehicle door, corresponds to the position of the fixed frame 6, and is provided with an opening facing the fixed frame 6; the fixing frame 6 is in a strip structure;

the curtain 2 penetrates through the opening and is in an inclined state with a low front part and a high back part, so that the whole rain tent is in a state with a low front part and a high back part when being unfolded in rainy and snowy weather, and rain and snow fall to the back of the top of the curtain 2 and flow from back to front under the action of gravity, namely flow from one side of the opening of the vehicle door to the side of the connection between the vehicle door and the side body, so that the flow guiding and drainage of the top of the curtain can be better realized, and the rain and snow at the top of the curtain 2 can be prevented from falling into the vehicle body from the opening of the vehicle door; the inner edge of the curtain 2 is positioned in the cavity, and the outer edge is detachably connected with the fixed frame 6 through a connecting structure;

the curtain 2 comprises a front curtain 21 positioned at the front part in the shrinkage bin 1 and a rear curtain 22 positioned at the rear part in the shrinkage bin 1; two pairs of coil springs 10 are sequentially arranged along the length direction of a contraction cabin 1 and rotatably installed in a cavity, each pair of coil springs 10 are coaxially arranged, the pair of coil springs 10 positioned at the front part in the contraction cabin 1 are used for installing a front curtain 21, the axes of the pair of coil springs 10 are suitable for the arrangement of a bending radian of a vehicle door along the front part, during actual arrangement, the axes of the pair of coil springs 10 can be tangent to the vehicle door along the front part middle point on the vehicle door, the pair of coil springs 10 positioned at the rear part in the contraction cabin 1 are used for installing a rear curtain 22, the axes of the pair of coil springs 10 are suitable for the arrangement of the vehicle door along the bending radian of the rear part, and during actual arrangement, the axes of the pair of coil springs 10 can be tangent to the vehicle door along the rear part middle point on the vehicle door along the rear part;

the curtain 2 is set to be of a two-section structure comprising the front curtain 21 and the rear curtain 22, so that the curtain 2 can be integrally of a fan-shaped structure when being unfolded, the fan-shaped area between the vehicle door and the vehicle body can be well shielded when the vehicle door is opened, and the front curtain 21 and the rear curtain 22 can be respectively rolled towards the axis of the self-mounted coil spring 10 in a non-coaxial manner when the curtain 2 is rolled towards the inside of the contraction bin 1, so that the problem that the integral fan-shaped curtain can not be rolled is solved;

the coil spring 10 is attached to the front edge or the rear edge of the front curtain 21 or the rear curtain 22 in a flattened state and is connected and fixed to the front curtain 21 or the rear curtain 22.

Preferably, the elastic band structures 12 which can stretch in the inner and outer directions are arranged in the middle and the rear parts of the front curtain 21 and the rear curtain 22; when the vehicle door is closed, the curtain 2 is in a rectangular sheet structure with the inner side wound on the coil spring 10, and the front curtain 21 and the rear curtain 22 are respectively in a rectangular sheet structure with the inner side wound on the coil spring 10; after the vehicle door is opened, the curtain 2 is of a fan-shaped ring-shaped sheet structure taking the rotating shaft of the vehicle door as the center of a circle, the front curtain 21 and the rear curtain 22 are of non-concentric fan-shaped ring-shaped sheet structures respectively, and the curvature radius of the fan-shaped ring-shaped sheet structure formed by the front curtain 21 is larger than that of the fan-shaped ring-shaped sheet structure formed by the rear curtain 22; this setting can adapt to the actual conditions of door motion in the door opening process betterly: when the automobile is opened, the automobile door rotates and is opened by taking a connecting shaft of the automobile door and an automobile body as a rotating shaft, the motion tracks of all points on the automobile door are close to circular arcs, and the curvature radius of the circular arc of each point track is positively correlated with the distance between the point and the rotating shaft;

therefore, the motion tracks of all points on the vehicle door are integrally fan-shaped cylinders in the opening process of the vehicle door, and after the vehicle door is opened, the rectangular area shielded by the curtain 2 between the contraction cabin 1 and the fixed frame 6 is deformed into a fan-shaped annular area; in the process, the elastic band structures 12 at the middle parts and the rear parts of the front curtain 21 and the rear curtain 22 extend along the inner and outer directions, and the front curtain 21 and the rear curtain 22 are unfolded to form non-concentric fan-ring-shaped sheet structures, and the curvature radius of the fan-ring-shaped sheet structure formed by the front curtain 21 is larger than that of the fan-ring-shaped sheet structure formed by the rear curtain 22, so that on the premise that the rear end of the front curtain 21 is overlapped with the front end part of the rear curtain 22, the curtain 2 integrally extends and deforms to form the fan-ring-shaped sheet structure matched with the fan-ring-shaped area, the vehicle door can be well attached, and a good rain and snow shielding effect is realized;

correspondingly, in the process of closing the vehicle door, the area shielded by the curtain 2 between the contraction cabin 1 and the fixed frame 6 is changed from the fan-shaped annular area to the rectangular area; in the foregoing process, the elastic band structures 12 in the middle and the rear portions of the front curtain 21 and the rear curtain 22 contract inward and outward, and although when the elastic band structures are rolled in the contraction chamber 1, the front curtain 21 and the rear curtain 22 are actually fan-ring-shaped sheet structures with very large curvature radii, rather than standard rectangular sheet structures, compared with the fan-ring-shaped sheet structures before the elastic band structures 12 contract, the curvature radii of the fan-ring-shaped sheet structures after the elastic band structures 12 contract are greatly increased, so that the actual shapes of the front curtain 21 and the rear curtain 22 are very close to the rectangular sheet structures, the rolling of the front curtain 21 and the rear curtain 22 onto the coil springs 10 cannot be influenced, the smoothness of the contraction process of the curtain 2 is ensured, and the curtain 2 is ensured to be flat and not to be contracted in the contraction process.

Preferably, the elastic structure 12 includes elastic bands arranged along the inner and outer directions, the elastic bands are arranged gradually densely from the front end to the rear end of the front curtain 21 or the rear curtain 22 and from the inner side to the outer side, and in the process of retracting the curtain 2, the portions of the front curtain 21 and the rear curtain 22 retracting into a roll are closer to the rectangular sheet structure, thereby further ensuring the smooth retraction of the curtain 2.

Preferably, the coil springs 10 are rotatably mounted in the cavity through shafts 7, each shaft 7 comprises a front shaft 71 positioned at the front part in the shrinkage cavity 1 and a rear shaft 72 positioned at the rear part in the shrinkage cavity 1, the front shaft 71 and the rear shaft 72 are fixedly arranged in the cavity and fixedly connected to the inner side wall of the shrinkage cavity 1, and the two pairs of coil springs 10 are rotatably mounted and connected with the front shaft 71 or the rear shaft 72 through bearings respectively; under this setting, front curtain 21 and back curtain 22 can be rolled up respectively and establish to front axle 71 and back axle 72 on, and front axle 71 and back axle 72 can play the support design effect to front curtain 21 and back curtain 22, make the book of front curtain 21 and back curtain 22 establish to retract more smoothly.

Preferably, the front shaft 71 and the rear shaft 72 are both arranged in a front-low and rear-high manner, and the rear end of the front shaft 71 is located below the front end of the rear shaft 72; the front end edge of the rear curtain 22 is provided with a weight increasing rubber belt 5 which is drooped and attached to the top of the front curtain 21; when the vehicle door is opened, the weight-increasing rubber belt 5 attached to the front end edge of the rear curtain 22 is attached to the top of the rear end edge of the front curtain 21 under the action of gravity, so that the joint between the front curtain 21 and the rear curtain 22 is shielded, rain and snow are prevented from falling from the joint, and the shielding effect of the awning is ensured; in order to ensure the close adhesion between the weight-increasing rubber belt 5 and the front curtain 21, the weight-increasing rubber belt 5 should be made of a material having a high density and good waterproof and bending properties.

Preferably, the inner ring of the bearing is fixedly connected to the corresponding front shaft 71 or rear shaft 72, and the outer ring is fixedly connected to the inner end of the corresponding coil spring 10.

Preferably, the length of the coil spring 10 is the same as the width from the inner edge to the outer edge of the front curtain 21 or the rear curtain 22, and the outer end of the coil spring 10 is connected and fixed with the outer edge of the front curtain 21 or the rear curtain 22.

Preferably, the length of each coil spring 10 increases from front to back in sequence to match the fan-ring-shaped sheet structure of the unfolded front curtain 21 and the unfolded back curtain 22, so as to meet the actual condition of the area formed between the vehicle door and the vehicle body when the vehicle door is opened.

Preferably, connection structure includes each couple 4 and each buckle groove 61 that set up in pairs, and each couple 4 is connected and is fixed to the epitaxial department of curtain 2, and each buckle groove 61 is seted up to the corresponding position that corresponds each couple 4 on mount 6, and each couple 4 and buckle groove 61 one-to-one block articulate, with the epitaxial and the 6 spacing connections of mount of curtain 2.

Preferably, the coil spring 10 is sewn and fixed in a flattened shape into the front curtain 21 or the rear curtain 22 along the front end edge or the rear end edge of the front curtain 21 or the rear curtain 22.

The mounting mode of the vehicle door awning is that the contraction bin 1 is mounted and fixed on a vehicle body and is positioned above a vehicle door, and the fixing frame 6 is mounted and fixed on a door frame of the vehicle door and is positioned at the top of the outer side surface of the door frame of the vehicle door.

As shown in fig. 1 to 2, when the vehicle door is closed, the fixed mount 6 is located right below the contraction chamber 1; at this time, the curtain 2 is a rectangular sheet structure with the inner side wound on the coil spring 10, and most of the curtain 2 is wound in the cavity of the contraction cabin 1.

In the process of opening the vehicle door, along with the increase of the opening angle of the vehicle door, the distance between the fixed frame 6 and the shrinkage bin 1 is increased; at this time, in order to adapt to the increase of the distance between the fixed frame 6 and the contracting cabin 1, the curtain 2 coiled on the coil spring 10 overcomes the elasticity of the coil spring 10 and is pulled out in the direction towards the outer edge of the coil spring to shield the gradually increasing sector area between the fixed frame 6 and the contracting cabin 1, and the coil spring 10 correspondingly rotates. In the process, as the motion trail of each point on the vehicle door is a fan-shaped cylinder as a whole, the total length variation of different positions on the curtain 2 along the inside and outside direction is positively correlated with the distance from the position to the vehicle door rotating shaft, so that the total length variation of the curtain 2 from the front edge to the back edge along the inside and outside direction is gradually increased; at this time, the elastic band structures 12 arranged at the middle and rear parts of the curtain 2 correspondingly extend in the inner and outer directions to adapt to the difference of the total length variation of each position on the curtain 2 under the condition that the spreading amount of each position on the curtain 2 is the same.

As shown in fig. 3, after the vehicle door is opened in place, a sector area is formed between the fixing frame 6 and the contraction cabin 1, the front curtain 21 and the rear curtain 22 are respectively unfolded to be sector-ring-shaped sheet structures, the two sector-ring-shaped sheet structures are arranged non-concentrically, and the curvature radius of the sector-ring-shaped sheet structure positioned at the rear is larger than that of the sector-ring-shaped sheet structure positioned at the front; after the rear end of the front curtain 21 overlaps the front end of the rear curtain 22, the curtain 2 is in a fan-like annular sheet structure as a whole, and is attached to the vehicle body and the vehicle door to shield most of the fan-shaped area.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a car door canopy is retrieved to roll-up formula which characterized in that: the curtain comprises a contraction cabin (1) and a fixing frame (6) which are respectively installed and fixed on the outer side surfaces of a door frame of an automobile body and an automobile door of the automobile, and a curtain (2) which is installed and connected with the contraction cabin (1) through a coil spring (10);

the contraction cabin (1) is of a long strip-shaped hollow structure with a cavity inside, is positioned above the vehicle door, is arranged at a position corresponding to the fixed frame (6), and is provided with an opening facing the fixed frame (6); the fixing frame (6) is of a strip structure;

the curtain (2) penetrates through the opening and is in an inclined state with a low front part and a high back part, the inner edge of the curtain is positioned in the cavity, and the outer edge of the curtain is detachably connected with the fixed frame (6) through a connecting structure;

the curtain (2) comprises a front curtain (21) positioned at the front part in the contraction cabin (1) and a rear curtain (22) positioned at the rear part in the contraction cabin (1); two pairs of coil springs (10) are followed the length of shrink storehouse (1) is to setting gradually and rotate and install to the cavity in, every is every what the equal coaxial line of coil spring (10) sets up, is located anterior a pair of coil spring (10) are used for installing front curtain (21) in shrink storehouse (1), and this axis adaptation door to coil spring (10) goes up along anterior crooked radian setting, is located a pair of coil spring (10) at rear portion are used for installing rear curtain (22) in shrink storehouse (1), and should be to coil spring (10) axis adaptation door go up along the crooked radian setting at rear portion, front end border or rear end border and front curtain (21) or rear curtain (22) are connected fixedly with the flattening form laminating front curtain (21) or rear curtain (22) in coil spring (10).

2. A roll-up recovery door canopy according to claim 1, wherein: elastic band structures (12) which can stretch along the inner direction and the outer direction are arranged at the middle parts and the rear parts of the front curtain (21) and the rear curtain (22); when the vehicle door is closed, the curtain (2) is of a rectangular sheet structure with the inner side wound on the coil spring (10), and the front curtain (21) and the rear curtain (22) are of rectangular sheet structures with the inner sides wound on the coil spring (10) respectively; after the vehicle door is opened, the curtain (2) is of a fan-shaped ring-shaped sheet structure taking a rotating shaft of the vehicle door as a circle center, the front curtain (21) and the rear curtain (22) are of non-concentric fan-shaped ring-shaped sheet structures respectively, and the curvature radius of the fan-shaped ring-shaped sheet structure formed by the front curtain (21) is larger than that of the fan-shaped ring-shaped sheet structure formed by the rear curtain (22).

3. A retractable recovery door canopy according to claim 2, wherein: each elastic band structure (12) includes along the interior outward direction each elastic band that sets up, the elastic band is by the front end of front curtain (21) or back curtain (22) to the rear end, and inboard all sets gradually densely to the outside.

4. A roll-up recovery door canopy according to claim 1, wherein: coil spring (10) rotate through axle (7) and install to the cavity in, axle (7) are including being located anterior front axle (71) in shrink storehouse (1) and being located rear axle (72) of shrink storehouse (1) inner rear portion, front axle (71) and rear axle (72) set firmly in the cavity, connect fixedly extremely the inside wall in shrink storehouse (1), two pairs coil spring (10) rotate erection joint through bearing and front axle (71) or rear axle (72) respectively.

5. A roll-up recovery door canopy according to claim 4, wherein: the front shaft (71) and the rear shaft (72) are arranged in a manner that the front part is low and the rear part is high, and the rear end of the front shaft (71) is positioned below the front end of the rear shaft (72); the front end edge of the rear curtain (22) is provided with a weight increasing rubber belt (5) which is drooping and attached to the top of the front curtain (21) along the whole length.

6. A roll-up recovery door canopy according to claim 4, wherein: the inner ring of the bearing is fixedly connected with a corresponding front shaft (71) or a corresponding rear shaft (72), and the outer ring of the bearing is fixedly connected with the inner end part of the corresponding coil spring (10).

7. A retractable recovery door canopy according to claim 1, wherein: the length of the coil spring (10) is consistent with the width from the inner edge to the outer edge of the front curtain (21) or the rear curtain (22), and the outer end of the coil spring (10) is fixedly connected with the outer edge of the front curtain (21) or the rear curtain (22).

8. A retractable recovery door canopy according to claim 1, wherein: the length of each coil spring (10) is increased from front to back in sequence.

9. A retractable recovery door canopy according to claim 2 or 4, wherein: the connection structure comprises hooks (4) and buckle grooves (61) which are arranged in pairs, the hooks (4) are connected and fixed to the extension position of the curtain (2), the buckle grooves (61) are correspondingly formed in the positions, corresponding to the hooks (4), of the fixing frame (6), the hooks (4) and the buckle grooves (61) are clamped in a one-to-one corresponding mode, and the extension of the curtain (2) is connected with the fixing frame (6) in a limiting mode.

10. A roll-up recovery door canopy according to claim 1, wherein: the coil spring (10) is sewn and fixed in the front curtain (21) or the rear curtain (22) along the front end edge or the rear end edge of the front curtain (21) or the rear curtain (22) in a flattened state.