Annular curtain folding and unfolding mechanism

Abstract

The utility model discloses an annular curtain folding and unfolding mechanism, which belongs to the technical field of information display and comprises a supporting seat, a top plate is arranged above the supporting seat, a mounting groove A is fixedly mounted on one side above the supporting seat, and a mounting groove B is fixedly mounted on one side below the top plate. According to the utility model, the screw rod is driven by the retracting and releasing mechanism and the servo motor, so that the position of the top plate is adjusted, when the curtain is used, the top plate is moved to the highest position of the screw rod, and the curtain is unfolded for use, and when the curtain is not used, the top plate is moved downwards to coincide with the base, and the curtain is folded and stored, so that the space occupied by the curtain is reduced; and after the curtain is stored, the supporting seat and the top plate form a C-shaped groove, and the curtain is clamped into the C-shaped groove formed by the supporting seat and the top plate, so that the situation that the curtain is exposed in the air in a large area and is polluted by dust in the air is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of information display, in particular to a ring-shaped curtain retracting and releasing mechanism. Background Art

[0002] Information can be projected onto the screen through a projector for display. The circular screen refers to a screen with an arc. The circular screen can better filter the ambient light and suppress the sun effect. The blackness, layering and color saturation of the picture are better, and the color reproduction is better.

[0003] However, after research, it was found that the existing annular curtain is fixed on the wall or the curtain frame, cannot be folded and stored, occupies a large space, and a large area of ​​the curtain is exposed to the air, which is easy to adhere to dust and cause pollution. It is not flexible to use, and the existing annular curtain is not easy to disassemble and replace, and is not convenient to use. Therefore, a new device is provided to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a ring-shaped curtain retracting and unfolding mechanism in order to solve the above-mentioned problem of insufficient flexibility and inconvenience in use.

[0005] The technical solution adopted by the utility model is as follows: a ring-shaped curtain retracting and releasing mechanism, comprising a support seat, a top plate above the support seat, a mounting groove A fixedly installed on one side above the support seat, a mounting groove B fixedly installed on one side below the top plate, and a curtain installed between the mounting groove A and the mounting groove B;

[0006] A retracting and unfolding mechanism for folding and unfolding the curtain is arranged between the support seat and the top plate.

[0007] Among them, the retracting and releasing mechanism includes a screw rod, a servo motor, a connecting block A and a support block. Support blocks are symmetrically installed on both sides and the center of the back of the support seat through fixing bolts. The support blocks on both sides are symmetrically rotatably connected with screw rods through servo motors. Connecting blocks A are symmetrically installed on both sides of the top plate through fixing bolts, and the screw rod passes through the connecting block A and is threadedly connected to the connecting block A. The side profiles of the support seat and the top plate are both L-shaped and the top profiles are both arc-shaped. A guide rod is fixedly installed above the support block at the center of the support seat, and the guide rod is at the same height as the screw rod. A connecting block B is installed at the center of the back of the top plate through fixing bolts, and the guide rod passes through the connecting block B and is slidably connected to the connecting block B.

[0008] Among them, the upper and lower ends of the curtain are sewn with connecting belts, and the connecting belts are made of PVC. Limit blocks are symmetrically and equidistantly bonded on both sides of the connecting belt, and there are a number of limit blocks. Rollers are equidistantly connected to the inside of the installation groove A and the installation groove B on both sides, and the adjacent rollers are connected by chain transmission. A sprocket that meshes with the chain is nested on the outside of the roller, and a groove that matches the height of the limit block is embedded on the surface of the roller. Motors are installed on both sides of the upper edge of the installation groove A and both sides of the lower edge of the installation groove B, and the motor output shaft is connected to the corresponding roller.

[0009] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0010] 1. In the utility model, through the retractable mechanism, the servo motor drives the screw rod, and then adjusts the position of the top plate. When the curtain is used, the top plate is moved to the highest point of the screw rod, and the curtain is stretched out for use. When the curtain is not needed, the top plate is moved down to overlap with the base, and the curtain is folded and stored, which reduces the space occupied by the curtain and is more flexible to use.

[0011] 2. In the present invention, after the curtain is stored, the support base and the top plate form a C-shaped groove, and the curtain is inserted into the C-shaped groove formed by the support base and the top plate, so as to prevent the curtain from being exposed to the air over a large area and being contaminated by dust in the air.

[0012] 3. In the utility model, the motor drives the roller to rotate, and the roller clamps the connecting belt to move, so that the curtain is moved out from the inside of the installation groove A and the installation groove B, and the curtain is disassembled. Then, the connecting belt at the edge of the new curtain is inserted into the installation groove A and the installation groove B, and the limit block is just stuck in the groove of the roller. The roller rotates to clamp the curtain and slowly move it into the installation groove A and the installation groove B until the curtain completely enters the installation groove A and the installation groove B, completing the replacement of the curtain, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model after the curtain is stored;

[0015] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0016] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure at B

[0017] Figure 5It is a schematic diagram of the partial top view of the mounting groove A in the utility model;

[0018] Figure 6 It is a schematic diagram of the partial side section structure of the utility model.

[0019] Markings in the figure: 1. Support seat; 101. Mounting slot A; 102. Screw rod; 1021. Servo motor; 1022. Guide rod; 103. Top plate; 1031. Mounting slot B; 1032. Connecting block A; 1033. Connecting block B; 104. Roller; 1041. Motor; 105. Support block; 2. Curtain; 201. Connecting belt; 2011. Limit block. Implementation

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the utility model:

[0022] Reference Figure 1-6 A ring-shaped curtain retracting and releasing mechanism includes a support base 1, a top plate 103 is provided above the support base 1, a mounting groove A101 is fixedly provided on one side above the support base 1, a mounting groove B1031 is fixedly provided on one side below the top plate 103, and a curtain 2 is provided between the mounting groove A101 and the mounting groove B1031;

[0023] A retractable mechanism is provided between the support base 1 and the top plate 103 for facilitating the retracting and unfolding of the curtain.

[0024] Reference Figure 1 , 26. In this embodiment, the retracting and releasing mechanism includes a screw rod 102, a servo motor 1021, a connecting block A1032 and a support block 105. The support blocks 105 are symmetrically installed on both sides and the center of the back of the support seat 1 through fixing bolts. The support blocks 105 on both sides are symmetrically rotatably connected with the screw rods 102 through the servo motors 1021. The connecting blocks A1032 are symmetrically installed on both sides of the top plate 103 through fixing bolts, and the screw rod 102 passes through the connecting block A1032 and is threadedly connected to the connecting block A1032. The side sections of the support seat 1 and the top plate 103 are both L-shaped and the top sections are both arc-shaped. A guide rod 1022 is fixedly installed above the support block 105 at the center of the support seat 1, and the guide rod 1022 is at the same height as the screw rod 102. A connecting block B1033 is installed at the center of the back of the top plate 103 through fixing bolts, and the guide rod 1022 passes through the connecting block B1033 and is slidably connected to the connecting block B1033.

[0025] When the curtain 2 is not needed, the servo motor 1021 drives the screw rod 102 to rotate, and the connecting block A1032 moves downward along the screw rod 102, thereby causing the top plate 103 and the connecting block B1033 to move downward along the guide rod 1022 until the top plate 103 moves down and is stuck on the support seat 1. The support seat 1 and the top plate 103 form a C-shaped groove. The staff assists in inserting the curtain 2 into the C-shaped groove formed by the support seat 1 and the top plate 103 to achieve the purpose of folding and storing the curtain 2. Thereafter, the support block 105 is removed from the support seat 1 by removing the fixing bolts, and the connecting block A1032 and the connecting block B1033 are removed from the top plate 103. Then, the screw rod 102 and the guide rod 1022 are removed and placed horizontally, thereby reducing the space occupied by the entire annular curtain and preventing the curtain 2 from being exposed to the air over a large area and being contaminated by dust in the air.

[0026] Reference Figure 1-6 In this embodiment, the upper and lower ends of the curtain 2 are sewn with connecting belts 201, and the material of the connecting belts 201 is PVC. The limiting blocks 2011 are symmetrically and equidistantly bonded on both sides of the connecting belts 201, and the number of the limiting blocks 2011 is several. The rollers 104 are equidistantly connected to the inner sides of the installation grooves A101 and B1031, and the adjacent rollers 104 are connected by chain transmission. The rollers 104 are nested with sprockets that mesh with the chains, and the surface of the rollers 104 is embedded with grooves that are highly matched with the limiting blocks 2011. Motors 1041 are installed on both sides of the upper edge of the installation groove A101 and both sides of the lower edge of the installation groove B1031, and the output shaft of the motor 1041 is connected to the corresponding rollers 104;

[0027] When the curtain 2 needs to be disassembled and replaced, the motor 1041 works, so that the rollers 104 on both sides of the installation slot A101 and the rollers 104 on both sides of the installation slot B1031 rotate in opposite directions, and the connecting belts 201 clamping the upper and lower sides of the curtain 2 slowly move, and then the curtain 2 is slowly withdrawn from the installation slot A101 and the installation slot B1031. Then, the staff assists in putting the connecting belts 201 at the upper and lower ends of the new curtain 2 into the installation slot A101 and the installation slot B1031 respectively, and aligns the limit block 2011 with the groove in the middle of the roller 104. Then, the motor 1041 works, so that the installation slot A101 is The rollers 104 on both sides of the top and the rollers 104 on both sides inside the installation groove B1031 rotate in opposite directions, and the clamping connecting belt 201 slowly moves into the installation groove A101 and the installation groove B1031, so as to achieve the purpose of installing the curtain 2 between the installation groove A101 and the installation groove B1031, and complete the replacement of the curtain 2. The connecting belt 201 made of PVC increases the hardness of the edge of the curtain 2. During the movement of the roller 104 clamping the connecting belt 201, the connecting belt 201 is not easy to deform, so that the curtain 2 is smoother, and the limit block 2011 is stuck in the groove of the roller 104 to prevent the curtain from escaping from the installation groove A101 and the installation groove B1031.

[0028] Reference Figure 1 , 2 , 3, 4, 6, in this embodiment, the servo motor 1021 and the motor 1041 are both electrically connected to the external power supply through the control panel.

[0029] Working principle: First, the servo motor 1021 drives the screw 102 to rotate, so that the connecting block A1032 moves up along the screw 102, and the top plate 103 moves up synchronously with the connecting block A1032. The connecting block B1033 moves up along the guide rod 1022 until the connecting block A1032 moves to the highest point of the screw 102, and the screen 2 is stretched between the support seat 1 and the top plate 103. The external projector projects the display content onto the screen 2 for display. Then, when the screen 2 is no longer needed, the servo motor 1021 drives the screw 102 to rotate, and the connecting block A1032 moves up along the screw 1 02 moves downward, thereby making the top plate 103 and the connecting block B1033 move downward along the guide rod 1022 until the top plate 103 moves downward and is stuck on the support seat 1, and the support seat 1 and the top plate 103 form a C-shaped groove. The staff assists in inserting the curtain 2 into the C-shaped groove formed by the support seat 1 and the top plate 103 to achieve the purpose of folding and storing the curtain 2. Then, the support block 105 is removed from the support seat 1 by removing the fixing bolts, and the connecting block A1032 and the connecting block B1033 are removed from the top plate 103, and then the screw rod 102 and the guide rod 1022 are removed and placed horizontally. The space occupied by the entire annular curtain is reduced, and at the same time, a large area of ​​the curtain 2 is prevented from being exposed to the air and contaminated by dust in the air. Then, when the curtain 2 needs to be disassembled and replaced, the top plate 103 moves up to open the curtain 2, and the motor 1041 works, so that the rollers 104 on both sides of the installation groove A101 and the rollers 104 on both sides of the installation groove B1031 rotate in opposite directions, and the connecting belts 201 holding the upper and lower sides of the curtain 2 move slowly, and then the curtain 2 is slowly withdrawn from the installation groove A101 and the installation groove B1031. Finally, the staff assists in putting the new curtain The connecting belts 201 at the upper and lower ends of the cloth 2 are respectively put into the installation groove A101 and the installation groove B1031, and the limit block 2011 is aligned with the groove in the middle of the roller 104. Then the motor 1041 works, so that the rollers 104 on both sides of the installation groove A101 and the rollers 104 on both sides of the installation groove B1031 rotate in opposite directions, and the clamping connecting belt 201 slowly moves into the installation groove A101 and the installation groove B1031, thereby achieving the purpose of installing the curtain 2 between the installation groove A101 and the installation groove B1031, and completing the replacement of the curtain 2.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ring-shaped curtain retracting and unfolding mechanism, comprising a support seat (1), characterized in that: A top plate (103) is provided above the support seat (1); a mounting groove A (101) is fixedly installed on one side above the support seat (1); a mounting groove B (1031) is fixedly installed on one side below the top plate (103); and a curtain (2) is installed between the mounting groove A (101) and the mounting groove B (1031); A retracting and unfolding mechanism for facilitating the retracting and unfolding of the curtain is provided between the support seat (1) and the top plate (103); The retractable mechanism comprises a screw rod (102), a servo motor (1021), a connecting block A (1032) and a supporting block (105); Support blocks (105) are symmetrically mounted on both sides and the center of the back of the support seat (1) via fixing bolts, and screw rods (102) are symmetrically rotatably connected to the support blocks (105) on both sides via servo motors (1021), and connecting blocks A (1032) are symmetrically mounted on both sides of the top plate (103) via fixing bolts, and the screw rods (102) pass through the connecting block A (1032) and are threadedly connected to the connecting block A (1032).

2. The annular curtain retracting and unfolding mechanism according to claim 1, characterized in that: The support seat (1) and the top plate (103) are both L-shaped in side section and arc-shaped in top section.

3. The annular curtain retracting and unfolding mechanism according to claim 1, characterized in that: A guide rod (1022) is fixedly mounted above the support block (105) at the center of the support seat (1), and the guide rod (1022) is at the same height as the screw rod (102). A connection block B (1033) is mounted at the center of the back of the top plate (103) via a fixing bolt, and the guide rod (1022) passes through the connection block B (1033) and is slidably connected to the connection block B (1033).

4. The annular curtain retracting and unfolding mechanism according to claim 1, characterized in that: The upper and lower ends of the curtain (2) are sewn with connecting belts (201), and the connecting belts (201) are made of PVC. Limiting blocks (2011) are symmetrically and equidistantly bonded on both sides of the connecting belt (201), and there are a plurality of limiting blocks (2011).

5. The annular curtain retracting and unfolding mechanism according to claim 1, characterized in that: Rollers (104) are equidistantly connected to the inside of the installation groove A (101) and the installation groove B (1031) on both sides so as to be rotatably connected thereto, and adjacent rollers (104) are connected by chain transmission, and sprockets meshing with the chains are nested on the outside of the rollers (104), and grooves highly matched with the limit blocks (2011) are embedded on the surfaces of the rollers (104).

6. The annular curtain retracting and unfolding mechanism according to claim 1, characterized in that: Motors (1041) are installed on both sides of the upper edge of the installation slot A (101) and on both sides of the lower edge of the installation slot B (1031), and the output shaft of the motor (1041) is connected to the corresponding roller (104).

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