CN110821381A

CN110821381A - Sun-shading with cleaning function

Info

Publication number: CN110821381A
Application number: CN201911114285.0A
Authority: CN
Inventors: 陈木华; 吴海北; 李贤友
Original assignee: Guangzhou Compton Zhigao Building Material Co Ltd
Current assignee: Guangzhou Compton Zhigao Building Material Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-02-21

Abstract

The invention provides a cleaning function sunshade, which comprises guide rails vertically arranged on two sides, a curtain mat connected in a sliding manner along the guide rails, and a driving system in transmission connection with the curtain mat to enable the curtain mat to be opened or shielded to slide; also comprises a glass cleaning device; the glass cleaning device comprises a cleaning group, a water pipe, a spray head and a water pump; the cleaning group is transversely arranged and detachably arranged on the inner side surface of the bottom of the curtain mat; the guide rail is provided with an accommodating groove for accommodating a water pipe, and the water pipe is fixedly installed along the accommodating groove; the spray heads are connected with the water pipes and are arranged along the guide rail, and the spray heads incline from two sides to the middle part and face the inner side of the sunshade; the water pump is connected with the water pipe to ensure that the spray head can spray clear water. The invention enables the sun-shading product to have the function of cleaning the outer side of the glass.

Description

Sun-shading with cleaning function

Technical Field

The invention relates to the field of building materials and cleaning devices, in particular to a cleaning function sunshade.

Background

The sunshade product can be used as a curtain to shade sunlight and can also be closed to prevent wind. Most of the existing sun-shading products are installed outside a glass window or a glass curtain wall of a building and only have the functions of shading, ventilating and preventing wind. However, the outside of the glass is easily contaminated with dust and needs to be cleaned regularly to maintain the beauty and clear sight. Because the sunshade product does not have the function of cleaning glass, the prior art needs a cleaner to work high above the ground to clean the outer side of the glass. In this case, the sunshade product does not, but does not, exert a cleaning effect, and may even obstruct the work of a cleaner.

It is obvious that the prior art has certain defects.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a sun-shading product with a cleaning function, so that the sun-shading product has the function of cleaning the outer side of glass.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cleaning function sunshade comprises guide rails vertically arranged on two sides, a curtain connected in a sliding manner along the guide rails, and a driving system connected with the curtain in a transmission manner to enable the curtain to be opened or shielded to slide; also comprises a glass cleaning device; the glass cleaning device comprises a cleaning group, a water pipe, a spray head and a water pump; the cleaning group is transversely arranged and detachably arranged on the inner side surface of the bottom of the curtain mat; the guide rail is provided with an accommodating groove for accommodating a water pipe, and the water pipe is fixedly installed along the accommodating groove; the spray heads are connected with the water pipes and are arranged along the guide rail, and the spray heads incline from two sides to the middle part and face the inner side of the sunshade; the water pump is connected with the water pipe to ensure that the spray head can spray clear water.

Furthermore, the glass cleaning device also comprises a telescopic mechanism; the telescopic mechanism comprises a telescopic bracket, a guide rod and a telescopic driving group; the telescopic bracket faces the inner side, the back of the telescopic bracket is fixedly provided with a guide rod, and the telescopic bracket is connected with the inner side of the bottom of the curtain mat in a sliding way through the guide rod; the cleaning group is detachably arranged on the telescopic bracket; the telescopic driving group is in transmission connection with the telescopic bracket, so that the telescopic bracket can be stretched inwards at the bottom of the curtain mat.

Furthermore, the telescopic driving group comprises a telescopic motor and a screw rod; the telescopic motor is fixedly installed at the bottom of the curtain mat and is in transmission connection with the screw rod, the screw rod extends inwards from the curtain mat, and the screw rod nut is fixedly installed on the telescopic bracket.

Furthermore, the telescopic driving group comprises a telescopic motor, a first synchronous shaft, a driving rocker and a connecting rod; the telescopic motor is fixedly installed at the bottom of the curtain mat, the first synchronizing shaft is in transmission connection with the telescopic motor, the driving rocking rods are respectively arranged at two ends of the first synchronizing shaft, one end of each driving rocking rod is fixedly connected with the corresponding first synchronizing shaft, the other end of each driving rocking rod is hinged to one end of the corresponding connecting rod, and the other end of each connecting rod is hinged to the telescopic support.

Further, the cleaning group comprises a brushing roller, a brush and a scraping strip; the brushing rollers are arranged along the transverse direction and are arranged at the inner side of the bottom of the curtain mat; the brush is detachably paved on the surface of the brushing roller, and flexible bristles are convexly arranged on the surface of the brush; the scraping strip is arranged elastically and can be detachably arranged on the inner side surface of the bottom of the curtain mat.

Furthermore, an elastic mechanism is arranged between the cleaning group and the bottom of the curtain mat, and the elastic mechanism comprises a roller seat and a spring; the scrubbing roller is rotationally connected with the roller seat, the roller seat is in sliding connection or swinging hinge joint with the bottom of the curtain mat along the inner and outer directions, and a spring is arranged between the roller seat and the bottom of the curtain mat to enable the roller seat to elastically move inwards.

Furthermore, the cleaning group also comprises a cleaning motor which is fixedly arranged at the bottom of the curtain mat and is in transmission connection with the brushing roller to drive the brushing roller to rotate.

Furthermore, the inner side surface of the telescopic support is provided with a telescopic induction switch.

Furthermore, obstacle induction switches are respectively arranged on the upper side and the lower side of the telescopic support.

Furthermore, the cleaning group comprises an elastically arranged scraping strip which is detachably arranged on the inner side surface of the bottom of the curtain mat.

Furthermore, the cleaning group also comprises a cleaning cloth which is detachably attached to the inner side surface of the bottom of the curtain mat.

Further, the curtain mat comprises a curtain sheet and a curtain bottom strip; the curtain pieces are mutually connected and arranged, the curtain bottom strip is connected with the lowest part to form an integral flexible rollable curtain mat, and the two sides of the curtain pieces and the curtain bottom strip are in sliding connection with the guide rails; the cleaning group is arranged on the inner side surface of the curtain bottom strip.

Further, the driving system comprises a lifting motor and a winding roller; the lifting motor is in transmission connection with the winding drum, and the winding drum is fixedly connected with the top end of the curtain mat, so that the curtain mat can be wound and stored on the surface of the winding drum.

The invention provides a cleaning function sunshade, which has the following advantages:

the sunshade has the function of cleaning the outer side of the glass, can spray water to the outer side of the glass, and drives the scraping strip to clean by utilizing the up-and-down sliding stroke of opening or shielding the sunshade;

the telescopic mechanism is arranged, so that different distances between the glass and the sun-shading can be adapted, and protruding structures such as a window frame can be avoided;

the telescopic driving group has two alternative schemes which can be freely selected;

rags can be additionally arranged for deep cleaning.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a cleaning function sunshade provided by the present invention.

Fig. 2 is a schematic view of the combination structure of the present invention together with window glass.

Fig. 3 is a side view of the telescoping mechanism and cleaning group according to the first embodiment.

Fig. 4 is a side view of the telescoping mechanism and cleaning group of the second embodiment.

Fig. 5 is a side view of a cleaning group of the third embodiment.

Description of reference numerals:

0. glass

1. Guide rail 2, curtain mat

3. Drive system 4, curtain sheet

5. Curtain bottom strip 6 and spray head

7. Water pipe 8 and water pump

9. Scraping strip 10 and telescopic bracket

11. Telescopic induction switch 12 and obstacle induction switch

13. Guide rod 14 and telescopic motor

15. Screw rod 16 and rag

17. Drive rocker 18, connecting rod

19. Scrubbing roller 20 and brush

21. Roller seat

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 2, an embodiment of the present invention provides a sunshade with a cleaning function, including guide rails 1 erected on both sides, a curtain 2 connected slidably along the guide rails 1, and a driving system 3 connected to the curtain 2 in a transmission manner to open or shield the curtain 2; also comprises a glass cleaning device; the glass cleaning device comprises a cleaning group, a water pipe 7, a spray head 6 and a water pump 8; the cleaning group is transversely arranged and detachably arranged on the inner side surface of the bottom of the curtain mat 2; the guide rail 1 is provided with an accommodating groove for accommodating the water pipe 7, and the water pipe 7 is fixedly installed along the accommodating groove; the spray heads 6 are connected with the water pipes 7 and are arranged along the guide rail 1, and the spray heads 6 incline from two sides to the middle part and face the inner side of the sunshade; the water pump 8 is connected with the water pipe 7 to enable the spray head 6 to spray clean water.

The greatest improvement of the invention and the traditional sunshade product is that the invention has the function of cleaning the outer side surface of the glass 0. When cleaning, the water pump 8 is pressurized to make the spray head 6 spray clean water towards the surface of the glass 0, and the clean water is generally taken from the supply of tap water through the water pipe 7. After the surface of the glass 0 is sprayed with clean water for cleaning, the cleaning group scrapes the surface of the glass 0, so that dust pollutants adhered to the surface of the glass 0 are scraped away, and the cleaning effect is realized. The cleaning action of the cleaning group can be accomplished by the stroke of the sunshade opening or shading, thus making full use of the drive system 3 of the sunshade product itself.

And the spray heads 6 are arranged and installed on the fixed guide rail 1, which helps to simplify the pipeline structure. The number of the heads 6 is not limited herein, and theoretically at least one is provided and is inclined to spray toward the surface of the glass 0. The structure is similar to the water spraying device of the front windshield 0 of the car. Depending on the length of the rail 1, the number of spray heads 6 can be increased appropriately to ensure that all surfaces of the glass 0 are wetted.

Meanwhile, parameters such as a specific structure and a head of the water pump 8 are not particularly limited. The water pipe 7 is not connected with a necessary valve structure, so that a more complex water path control function is realized.

If the glass cleaning device itself is fixed and immovable, its cleaning function is greatly limited. For example, most of the inner glass 0 curtain wall or window of the sunshade product is not a pure plane, there may be a protruded frame structure, or there may be a difference in horizontal position between different glasses 0, so that the distance between the glass 0 and the sunshade is not a certain value.

Referring to fig. 3 to 4, in order to overcome the above problem, it is preferable that the glass cleaning apparatus further includes a telescopic mechanism; the telescopic mechanism comprises a telescopic bracket 10, a guide rod 13 and a telescopic driving group; the telescopic bracket 10 faces the inner side, the back of the telescopic bracket is fixedly provided with a guide rod 13, and the telescopic bracket is connected with the inner side of the bottom of the curtain mat 2 in a sliding way through the guide rod 13; the cleaning group is detachably arranged on the telescopic bracket 10; the telescopic driving group is in transmission connection with the telescopic bracket 10, so that the telescopic bracket 10 can be inwards stretched and retracted at the bottom of the curtain mat 2.

The telescopic bracket 10 is in sliding connection with the curtain mat 2 through the guide rod 13, so that the telescopic bracket can be telescopic between the curtain mat 2 and the glass 0, thereby adapting to various different distances between the sunshade and the glass 0, and the cleaning group arranged on the telescopic bracket can ensure that any one surface of the glass 0 is cleaned. For the telescopic drive group driving the telescopic motion, there are two preferred embodiments:

referring to fig. 3, the present embodiment details the first preferred embodiment: the telescopic driving group comprises a telescopic motor 14 and a screw rod 15; the telescopic motor 14 is fixedly installed at the bottom of the curtain mat 2 and is in transmission connection with the screw rod 15, the screw rod 15 extends inwards from the curtain mat 2, and the screw rod nut is fixedly installed on the telescopic bracket 10. The telescopic bracket 10 is driven to perform telescopic motion by the rotation of the screw rod 15, and the telescopic driving of the telescopic bracket 10 can be realized. However, the length of the screw rod 15 determines the length of the telescopic stroke, so the scheme occupies more space in the thickness direction of the curtain 2.

In order to match the telescopic action of the telescopic bracket 10, preferably, a telescopic induction switch 11 is provided on the inner side surface of the telescopic bracket 10. And obstacle induction switches 12 are respectively arranged at the upper side and the lower side of the telescopic bracket 10.

After the telescopic bracket 10 extends out, the telescopic induction switch 11 contacts with the surface of the glass 0 to send out an induction signal, namely the telescopic induction switch extends out in place, at the moment, the cleaning group effectively contacts with the surface of the glass 0, the cleaning work on the surface of the glass 0 can be carried out, and the driving system 3 can work to drive the curtain mat 2 to move so that the cleaning group can clean the surface of the glass 0. In order to ensure that the signal of the telescopic induction switch 11 is effective, the specific structure thereof is preferably to cover the whole height of the telescopic bracket 10, i.e. the induction signal of the telescopic induction switch 11 can be obtained as long as any point of the telescopic bracket 10 is effectively contacted with the surface of the glass 0.

If the telescopic induction switch 11 loses the induction signal in the cleaning process, which indicates that the telescopic induction switch has left the surface of the glass 0, the cleaning group cannot effectively contact with the surface of the glass 0, the driving system 3 should stop running immediately, and the telescopic driving group is adjusted.

In addition, if the obstacle sensing switch 12 touches a window frame and other protruding obstacles to send out a sensing signal in the cleaning process, the driving system 3 should also stop running immediately and be controlled by the telescopic driving group to retract, and the driving system 3 can run again after the obstacles are avoided.

Through the working process, the invention can automatically adapt to the glass 0 with different space from the sun shading, can avoid the barrier and realizes intellectualization.

Preferably, the cleaning group comprises a scraping strip 9, and the scraping strip 9 which is elastically arranged is detachably arranged on the inner side surface of the bottom of the curtain. The scraping bar 9 is mainly used for scraping off the sewage mixed with the dust pollutants. Furthermore, the cleaning group comprises a cleaning cloth 16, and the cleaning cloth 16 is detachably attached to the inner side surface of the bottom of the curtain 2. The rag 16 can wipe the surface of the glass 0, so that deep cleaning is realized, and some stubborn stains or dust can be effectively cleaned. Generally, the cleaning process is from top to bottom, so as to avoid the sewage flowing downwards to re-contaminate the cleaned glass 0 surface. Therefore, the scraping strip 9 is preferably arranged right above the wiping cloth 16, and can scrape water off immediately after the wiping cloth 16 wipes the glass 0.

As for the specific structure of the curtain 2, preferably, the curtain 2 comprises a curtain sheet 4 and a curtain bottom strip 5; the curtain pieces 4 are mutually connected and arranged, the curtain bottom strip 5 is connected with the lowest part to form an integral flexible rollable curtain mat 2, and the two sides of the curtain pieces 4 and the curtain bottom strip 5 are in sliding connection with the guide rail 1; the scraping strip 9 is arranged on the inner side surface of the curtain bottom strip 5.

As for the driving system 3, it is preferable that the driving system 3 includes a lifting motor (not shown) and a winding drum (not shown); the lifting motor is in transmission connection with the winding drum, and the winding drum is fixedly connected with the top end of the curtain 2, so that the curtain 2 can be wound and stored on the surface of the winding drum.

Example two

Referring to fig. 4, the second preferred embodiment of the telescopic driving unit is detailed in this embodiment: the telescopic driving group comprises a telescopic motor 14, a first synchronous shaft, a driving rocker 17 and a connecting rod 18; the telescopic motor 14 is fixedly installed at the bottom of the curtain mat 2, the first synchronous shaft is in transmission connection with the telescopic motor 14, the driving rocking bars 17 are respectively arranged at two ends of the first synchronous shaft, one end of each driving rocking bar 17 is fixedly connected with the first synchronous shaft, the other end of each driving rocking bar 17 is hinged with one end of the corresponding connecting rod 18, and the other end of each connecting rod 18 is hinged with the corresponding telescopic support 10.

Unlike the first embodiment, the present embodiment employs a rocker mechanism, and drives the telescopic bracket 10 to move telescopically by driving the rocker 17 to swing. Because the drive rocker 17 and the connecting rod 18 can be folded, the occupied space in the thickness direction of the curtain mat 2 is small, but the transmission stability is lower than that of the first proposal.

In this embodiment, the specific structures of the cleaning group, the mat 2, the driving system 3 and other devices may be wholly or partially adopted in the structural scheme of the first embodiment, which is not described herein again.

EXAMPLE III

The cleaning group of this embodiment directly employs a simpler and more direct brush solution.

Referring to fig. 5, in the present embodiment, the cleaning group includes a brushing roller 19, a brush 20 and a scraping strip 9; the brushing roller 19 is arranged along the transverse direction and is arranged at the inner side of the bottom of the curtain mat 2; the brush 20 is detachably laid on the surface of the brushing roller 19, and flexible bristles are arranged on the surface of the brush 20 in a protruding mode; the elastic scraping strip 9 is detachably arranged at the bottom of the curtain 2.

More preferably, the cleaning group further comprises a cleaning motor (not shown), which is mounted at the bottom of the curtain mat 2 and is in transmission connection with the brushing roller 19 to drive the brushing roller 19 to rotate, so as to improve the cleaning capability of the brushing roller 19.

In this embodiment, the cleaning group is directly applied for cleaning, so that a complex telescoping mechanism is omitted. In the cleaning process, the lifting system 3 drives the whole curtain mat 2 to descend, and the cleaning motor continuously rotates to drive the brushing roller 19 to rotate, so that the brush 20 continuously brushes on the surface of the glass 0. The brush hair is flexible, so that the brush hair can automatically adapt to the distance between the glass 0 and the curtain mat 2 or has certain elastic adaptability to obstacles such as window frames. And the swinging bristles can better clean the areas with serious dust accumulation at corners, and the cleaning force is higher. The wiper strip 9 is generally disposed directly above the brush roller 19 according to the characteristics of the cleaning operation.

Furthermore, an elastic mechanism is arranged between the cleaning group and the bottom of the curtain mat 2, and the elastic mechanism comprises a roller seat 22 and a spring (not shown); the brushing roller 19 is connected with the roller seat 22 in a rotating way, the roller seat 22 is connected with the bottom of the curtain 2 in a sliding way or in a swinging way along the inner and outer directions, and a spring is arranged between the roller seat 22 and the bottom of the curtain 2 to enable the roller seat 22 to move inwards elastically.

The resilient mechanism can further improve the adaptability to obstacles. When an obstacle is met, the roller seat 22 can slide or swing backwards against the elastic force of the spring, and drives the brushing roller 19 to move backwards completely, so as to cross over the surface of the obstacle. The solution shown in fig. 5 is a solution where the roller holder 22 is swung, and the solution where the roller holder 22 slides along the bottom of the curtain 2 is not shown in this figure.

The structure of the remaining devices is basically the same as that of the first and second embodiments, and is not described herein.

The sunshade with the cleaning function provided by the invention can clean the glass 0 surface of a window and a curtain wall on the inner side of the sunshade, and realizes the cleaning function. And the action stroke of the cleaning function is realized by the driving system 3 for opening and closing the sunshade, the structure principle is simple, and therefore, the cleaning function is effectively combined with the sunshade product. Still have telescopic machanism, can clean and sunshade 0 surfaces of glass of arbitrary interval, can also avoid the barrier automatically, degree of automation is high. The cleaning cloth 16 can be additionally arranged, so that deep cleaning is realized, external overhead operation is reduced, and convenience is brought to life.

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

Claims

1. A cleaning function sunshade comprises guide rails vertically arranged on two sides, a curtain connected in a sliding manner along the guide rails, and a driving system connected with the curtain in a transmission manner to enable the curtain to be opened or shielded to slide; it is characterized by also comprising a glass cleaning device; the glass cleaning device comprises a cleaning group, a water pipe, a spray head and a water pump; the cleaning group is transversely arranged and detachably arranged on the inner side surface of the bottom of the curtain mat; the guide rail is provided with an accommodating groove for accommodating a water pipe, and the water pipe is fixedly installed along the accommodating groove; the spray heads are connected with the water pipes and are arranged along the guide rail, and the spray heads incline from two sides to the middle part and face the inner side of the sunshade; the water pump is connected with the water pipe to ensure that the spray head can spray clear water.

2. The clean-functioning sunshade of claim 1, wherein said glass cleaning apparatus further comprises a telescoping mechanism; the telescopic mechanism comprises a telescopic bracket, a guide rod and a telescopic driving group; the telescopic bracket faces the inner side, the back of the telescopic bracket is fixedly provided with a guide rod, and the telescopic bracket is connected with the inner side of the bottom of the curtain mat in a sliding way through the guide rod; the cleaning group is detachably arranged on the telescopic bracket; the telescopic driving group is in transmission connection with the telescopic bracket, so that the telescopic bracket can be stretched inwards at the bottom of the curtain mat.

3. The clean-function sunshade of claim 2, wherein said telescoping drive set comprises a telescoping motor and lead screw; the telescopic motor is fixedly installed at the bottom of the curtain mat and is in transmission connection with the screw rod, the screw rod extends inwards from the curtain mat, and the screw rod nut is fixedly installed on the telescopic bracket.

4. The clean-function sunshade of claim 2, wherein said telescoping drive set comprises a telescoping motor, a first synchronizing shaft, a drive rocker and a linkage; the telescopic motor is fixedly installed at the bottom of the curtain mat, the first synchronizing shaft is in transmission connection with the telescopic motor, the driving rocking rods are respectively arranged at two ends of the first synchronizing shaft, one end of each driving rocking rod is fixedly connected with the corresponding first synchronizing shaft, the other end of each driving rocking rod is hinged to one end of the corresponding connecting rod, and the other end of each connecting rod is hinged to the telescopic support.

5. The cleaning function sunshade of claim 1, wherein said cleaning group comprises a brush roller, a brush and a scraper bar; the brushing rollers are arranged along the transverse direction and are arranged at the inner side of the bottom of the curtain mat; the brush is detachably paved on the surface of the brushing roller, and flexible bristles are convexly arranged on the surface of the brush; the scraping strip is arranged elastically and can be detachably arranged on the inner side surface of the bottom of the curtain mat.

6. The cleaning sunshade of claim 5, wherein an elastic mechanism is arranged between the cleaning group and the bottom of the mat, the elastic mechanism comprises a roller seat and a spring; the scrubbing roller is rotationally connected with the roller seat, the roller seat is in sliding connection or swinging hinge joint with the bottom of the curtain mat along the inner and outer directions, and a spring is arranged between the roller seat and the bottom of the curtain mat to enable the roller seat to elastically move inwards.

7. The cleaning sunshade of claim 5, wherein said cleaning group further comprises a cleaning motor, said cleaning motor is fixedly mounted on the bottom of said mat and is in transmission connection with said brushing roller for driving said brushing roller to rotate.

8. The clean functional sunshade of any one of claims 2 to 4, wherein said telescoping bracket is provided with a telescoping inductive switch on an inside surface thereof.

9. The clean functional sunshade of any one of claims 2 to 4, wherein barrier sensing switches are respectively provided on upper and lower sides of said telescopic bracket.

10. The clean functional sunshade of any one of claims 2 to 4, wherein said cleaning group comprises an elastically disposed scraper bar, which is removably mounted on the inside surface of the bottom of the mat.

11. The cleaning function sunshade of claim 10, wherein said cleaning group further comprises a cleaning cloth removably attached to an inside surface of the bottom of the mat.

12. The clean-function sun shade according to any one of claims 1 to 7, wherein the curtain comprises a curtain sheet and a curtain base strip; the curtain pieces are mutually connected and arranged, the curtain bottom strip is connected with the lowest part to form an integral flexible rollable curtain mat, and the two sides of the curtain pieces and the curtain bottom strip are in sliding connection with the guide rails; the cleaning group is arranged on the inner side surface of the curtain bottom strip.

13. The clean-functioning sun shade according to any one of claims 1 to 7, wherein the drive system comprises a lift motor and a winding drum; the lifting motor is in transmission connection with the winding drum, and the winding drum is fixedly connected with the top end of the curtain mat, so that the curtain mat can be wound and stored on the surface of the winding drum.