Movable electric curtain

Abstract

The utility model provides a mobile electric curtain, which comprises a storage shell and a side shell which are parallel to each other, the outer walls of the bottom ends of the storage shell and the side shell are fixedly connected with bases, the outer walls of the bottoms of the bases are provided with moving wheels, the outer walls of the two sides of the bases are rotatably connected with supporting plates in a damping manner, and the outer walls of the bottoms of the supporting plates are rotatably connected with rolling balls. An electric telescopic rod is installed on the outer wall of the top of the base located at the bottom end of the storage shell, the telescopic end of the electric telescopic rod penetrates through the base to be connected with a friction plate, a storage cavity is formed in the inner wall of the storage shell, a rotating roller is rotationally connected to the inner wall of the storage cavity, a curtain body is wound around the outer wall of the rotating roller, and one end of the curtain body is fixedly connected with the side shell. According to the movable electric curtain, the supporting plate is arranged on the side wall of the base, when the supporting plate is folded and stored, the supporting plate is parallel to the storage shell or the side wall of the side shell, storage of the curtain body cannot be interfered, and the curtain body can be completely stored in the storage shell.

Description

Technical Field

[0001] This utility model relates to the field of screen technology, and in particular to a mobile electric screen. Background Technology

[0002] Projection screens are used in cinemas, offices, home theaters, and large conferences. They are tools used to display images and video files and need to be used in conjunction with a projector.

[0003] A search revealed a Chinese patent publication number CN216133296U, which discloses a movable projection screen, including a screen body. Both sides of the screen body are set within a support structure. The support structure includes two sets of columns and a base. The columns are fixed to the top of the base. One side of the base includes a support rod, casters, a central rod, and an air chamber. The other side of the base contains a battery box. The central rod is a hollow structure without sides. Both sides of the central rod are movably fixed to the support rod by positioning bolts. Each set of support rods has casters at its bottom end.

[0004] When in use, this patented technology uses a cylinder at the bottom to draw in air, which is then sprayed onto the screen body through air holes. Because multiple sets of air holes are opened on the pillars, the entire screen body can be covered. The heat generated by the screen body during the illumination process is discharged to both sides through airflow, avoiding the formation of high temperatures inside the screen body, extending the service life, and reducing the risk of fire. Although the support rods can be folded to reduce the footprint, the two ends of the support rods will collide with each other after folding, preventing the screen body from being fully rolled up. This causes part of the screen body to be exposed to the environment, making it prone to dust accumulation, collision damage, and contamination.

[0005] To address the problems existing in the above-mentioned technologies, a mobile electric curtain is proposed. Utility Model Content

[0006] In view of this, the present invention aims to provide a movable electric screen to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0007] The technical solution of this utility model embodiment is implemented as follows: A mobile electric screen includes a storage shell and a side shell that are parallel to each other. The bottom outer walls of the storage shell and the side shell are fixedly connected to a base. The bottom outer wall of the base is equipped with a moving wheel. The outer walls on both sides of the base are rotatably connected to a support plate. The bottom outer wall of the support plate is rotatably connected to a ball. An electric telescopic rod is installed on the top outer wall of the base located at the bottom of the storage shell. The telescopic end of the electric telescopic rod passes through the base and is connected to a friction plate.

[0008] In some embodiments, the inner wall of the storage housing has a storage cavity, a rotating roller is rotatably connected to the inner wall of the storage cavity, a curtain body is wound around the outer wall of the rotating roller, and one end of the curtain body is fixedly connected to the side housing.

[0009] In some embodiments, the inner wall of the storage housing is rotatably connected to two parallel guide rollers, the curtain body passes through the space between the two guide rollers, and a motor is installed on the top outer wall of the storage housing, with the output end of the motor connected to the rotating rollers.

[0010] In some embodiments, the outer wall of the storage housing and the side housing is provided with a groove on the opposite side, and a support rod is rotatably connected to the inner wall of the groove. One end of the support rod located on the same side of the storage housing and the side housing is rotatably connected to each other.

[0011] In some embodiments, the sidewall of the support rod is provided with a receiving groove, and an elastic telescopic rod is rotatably connected to the inner wall of the receiving groove of one support rod, and the other end of the elastic telescopic rod is rotatably connected to the inner wall of the receiving groove of the other support rod.

[0012] In some embodiments, the storage housing has two slots fixed to its side wall, which are located on both sides of the screen body and are made of ferromagnetic material.

[0013] In some embodiments, an insert plate is slidably fitted on the inner wall of the slot. The insert plate is L-shaped, with a cleaning brush fixed to the outer wall of one end of the insert plate and a magnetic strip fixed to the other end of the insert plate. The bristle ends of the two cleaning brushes are opposite each other, and the bristles of the cleaning brushes are in contact with the surface of the curtain body.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. A mobile electric screen, wherein a support plate is set on the side wall of the base, and when the support plate is folded and stored, the support plate is parallel to the side wall of the storage shell or the side shell, so as not to interfere with the storage of the screen body, and the screen body can be completely stored in the storage shell.

[0016] 2. A mobile electric screen, which, by being equipped with an electric telescopic rod and a friction plate, can increase the friction between the bottom of the storage housing and the ground, thereby fixing the position of the storage housing.

[0017] 3. A portable electric screen, which is equipped with a slot, a cleaning brush, a plate and a magnetic strip, can clean the surface of the screen body when it is rolled up, so as to prevent dust and other particles attached to the screen body when it is unfolded from being brought into the storage housing and adhering to the surface of the screen body for a long time, affecting the projection effect, and making it easy to remove the cleaning brush for cleaning or replacement.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall structural diagram of the present invention;

[0021] Figure 2 This is a side view of the present invention.

[0022] Figure 3 This is a diagram showing the internal structure of the housing of this utility model;

[0023] Figure 4 This is a diagram showing the base installation structure of this utility model.

[0024] Figure label:

[0025] 1. Storage housing; 2. Side housing; 3. Base; 4. Casters; 5. Curtain body; 6. Support plate; 7. Ball bearing; 8. Support rod; 9. Elastic telescopic rod; 10. Groove; 11. Storage cavity; 12. Rotating roller; 13. Guide roller; 14. Slot; 15. Cleaning brush; 16. Insert plate; 17. Magnetic strip; 18. Motor; 19. Electric telescopic rod; 20. Friction plate. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] In this utility model, unless otherwise expressly specified and limited, the first feature is the second feature

[0028] The terms "above" or "below" can include situations where the first and second features are in direct contact, or situations where they are in contact through another feature between them. Furthermore, "above," "over," and "on top of" the first feature relative to the second feature includes situations where the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0029] "Under", "below", and "below" include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a lower horizontal height than the second feature.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] Example 1:

[0032] like Figure 1-4 As shown, a movable electric screen includes a storage housing 1 and a side housing 2 that are parallel to each other. A base 3 is fixedly connected to the bottom outer wall of both the storage housing 1 and the side housing 2. A moving wheel 4 is installed on the bottom outer wall of the base 3. A support plate 6 is rotatably connected to both sides of the outer wall of the base 3. When the support plate 6 is folded, it is parallel to the side wall of the storage housing 1 or the side housing 2. A ball bearing 7 is rotatably connected to the bottom outer wall of the support plate 6. An electric telescopic rod 19 is installed on the top outer wall of the base 3 located at the bottom of the storage housing 1. The telescopic end of the electric telescopic rod 19 passes through the base 3 and is connected to a friction plate 20.

[0033] The inner wall of the storage housing 1 has a storage cavity 11, and a rotating roller 12 is rotatably connected to the inner wall of the storage cavity 11. The outer wall of the rotating roller 12 is wound around the curtain body 5. One end of the curtain body 5 is fixedly connected to the side housing 2. Two parallel guide rollers 13 are rotatably connected to the inner wall of the storage housing 1. The curtain body 5 passes between the two guide rollers 13. A motor 18 is installed on the top outer wall of the storage housing 1. The output end of the motor 18 is connected to the rotating roller 12. A groove 10 is opened on the outer wall of the opposite side of the storage housing 1 and the side housing 2. A support rod 8 is rotatably connected to the inner wall of the groove 10. One end of the support rod 8 located on the same side of the storage housing 1 and the side housing 2 is rotatably connected to each other. A receiving groove is opened on the side wall of the support rod 8. An elastic telescopic rod 9 is rotatably connected to the inner wall of the receiving groove of one of the support rods 8. The other end of the elastic telescopic rod 9 is rotatably connected to the inner wall of the receiving groove of the other support rod 8. When the curtain body 5 is in the rolled-up state, the angle between the elastic telescopic rod 9 and the vertical plane of the storage housing 1 is greater than 5 degrees.

[0034] When in use, push the device to the location, rotate the support plate 6 with its connection end to the base 3 as the center of rotation to both sides of the base 3 until the ball 7 contacts the ground, increasing the contact area between the device and the ground. Then, the electric telescopic rod 19 pushes the friction plate 20 down, making the friction plate 20 contact the ground, increasing the friction between the bottom of the storage housing 1 and the ground, and fixing the storage housing 1. Then, the motor 18 drives the rotating roller 12 to rotate, unrolling the curtain body 5. The elastic force of the elastic telescopic rod 9 pushes the folded two support rods 8 connecting body to unfold, pushing the side housing 2 away from the storage housing 1, and the curtain body 5 unfolds. When the position of the device needs to be finely adjusted during use, the electric telescopic rod 19 drives the friction plate 20 to move up. At this time, the position of the storage housing 1 can be moved, changing the overall position of the device. When storing the curtain body 5, the motor 18 drives the rotating roller 12 to roll up the curtain body 5. The connecting body of the two support rods 8 folds, the elastic telescopic rod 9 contracts and deforms, the side housing 2 moves closer to the storage housing 1, and the support rods 8 enter the groove 10.

[0035] By setting the support plate 6 on the side wall of the base 3, when the support plate 6 is folded and stored, the support plate 6 is parallel to the side wall of the storage shell 1 or the side shell 2, which will not interfere with the storage of the screen body 5, and the screen body 5 can be completely stored in the storage shell 1.

[0036] By incorporating an electric telescopic rod 19 and a friction plate 20, the friction between the bottom of the storage housing 1 and the ground can be increased, thereby fixing the position of the storage housing 1.

[0037] Example 2:

[0038] A movable electric screen, this embodiment is based on embodiment 1 with the following improvements, such as... Figure 3 As shown,

[0039] In this embodiment, two slots 14 are fixed to the side wall of the storage housing 1. The two slots 14 are located on both sides of the screen body 5. The slots 14 are made of ferromagnetic material. Insert plates 16 are slidably fitted on the inner wall of the slots 14. The insert plates 16 are L-shaped. A cleaning brush 15 is fixed to the outer wall of one end of the insert plate 16. A magnetic strip 17 is fixed to the other end of the insert plate 16. The bristle ends of the two cleaning brushes 15 are opposite to each other, and the bristles of the cleaning brushes 15 are in contact with the surface of the screen body 5.

[0040] During the process of retracting the screen body 5, the bristles of the cleaning brush 15 contact the surface of the screen body 5 to clean it, preventing dust and other particles attached to the screen body 5 when it is unfolded from being carried into the storage housing 1 and remaining on the surface of the screen body 5 for a long time, which would affect the projection effect. When the cleaning brush 15 has been used for a period of time or needs to be replaced, the cleaning brush 15 can be pulled to one side to overcome the magnetic attraction between the magnetic strip 17 and the slot 14, and the insert plate 16 will disengage from the slot 14, allowing the cleaning brush 15 to be removed for cleaning or replacement.

[0041] With the slot 14, cleaning brush 15, insert plate 16 and magnetic strip 17, the surface of the screen body 5 can be cleaned when the screen body 5 is rolled up, which prevents dust and other particles attached to the screen body 5 when it is unfolded from being brought into the storage housing 1 and adhering to the surface of the screen body 5 for a long time, affecting the projection effect. It also makes it easy to remove the cleaning brush 15 for cleaning or replacement.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A movable electric screen, comprising a storage housing (1) and side housings (2) parallel to each other, characterized in that: The storage housing (1) and the side housing (2) are both fixedly connected to the bottom outer wall of the base (3). The bottom outer wall of the base (3) is equipped with a moving wheel (4). The outer walls on both sides of the base (3) are connected to a support plate (6) with damping rotation. The bottom outer wall of the support plate (6) is rotatably connected to a ball (7). The top outer wall of the base (3) located at the bottom of the storage housing (1) is equipped with an electric telescopic rod (19). The telescopic end of the electric telescopic rod (19) passes through the base (3) and is connected to a friction plate (20).

2. A mobile electric screen according to claim 1, characterized in that: The inner wall of the storage housing (1) is provided with a storage cavity (11), and a rotating roller (12) is rotatably connected to the inner wall of the storage cavity (11). The outer wall of the rotating roller (12) is wrapped with a curtain body (5), and one end of the curtain body (5) is fixedly connected to the side housing (2).

3. A mobile electric screen according to claim 1, characterized in that: The inner wall of the storage housing (1) is rotatably connected to two parallel guide rollers (13), the curtain body (5) passes between the two guide rollers (13), and a motor (18) is installed on the top outer wall of the storage housing (1). The output end of the motor (18) is connected to the rotating roller (12).

4. A movable electric screen according to claim 3, characterized in that: The outer wall of the storage shell (1) and the side shell (2) on opposite sides is provided with a groove (10), and a support rod (8) is rotatably connected to the inner wall of the groove (10). One end of the support rod (8) located on the same side of the storage shell (1) and the side shell (2) is rotatably connected to each other.

5. A movable electric screen according to claim 4, characterized in that: The side wall of the support rod (8) is provided with a receiving groove, and an elastic telescopic rod (9) is rotatably connected to the inner wall of the receiving groove of one of the support rods (8), and the other end of the elastic telescopic rod (9) is rotatably connected to the inner wall of the receiving groove of the other support rod (8).

6. A movable electric screen according to claim 1, characterized in that: The storage housing (1) has two slots (14) fixed on its side wall. The two slots (14) are located on both sides of the curtain body (5). The slots (14) are made of ferromagnetic material.

7. A movable electric screen according to claim 6, characterized in that: The slot (14) has a sliding plate (16) on its inner wall. The plate (16) is L-shaped. A cleaning brush (15) is fixed on the outer wall of one end of the plate (16), and a magnetic strip (17) is fixed on the other end of the plate (16). The bristles of the two cleaning brushes (15) are opposite each other, and the bristles of the cleaning brushes (15) are in contact with the surface of the curtain body (5).

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