Magnetic fixing structure of folding green screen background cloth

Abstract

This utility model relates to the technical field of green screen backdrop fixing devices, and in particular to a magnetic fixing structure for a foldable green screen backdrop. It includes a green screen backdrop body, two A-support rods and two B-support rods, and further includes: four movable rods; two support plates with connecting plates on their upper sides; eight A-magnetic blocks connected to the rear of the green screen backdrop body, with B-magnetic blocks magnetically connected to the rear of each A-magnetic block; two magnetic plates with magnetic strips magnetically connected to one side of each magnetic plate; two A-connecting parts; four B-connecting parts; four mounting units; four A-adjustment units; and two B-adjustment units. By setting up the A-support rods, B-support rods, movable rods, support plates, connecting blocks, A-adjustment units, and B-adjustment units, the size of the device can be adjusted, allowing the device to flatten the green screen backdrop. Simultaneously, the device can be folded and stored for easy carrying and transportation.

Description

Technical Field

[0001] This utility model relates to the technical field of green screen background cloth fixing devices, and in particular to a magnetic fixing structure for a foldable green screen background cloth. Background Technology

[0002] Green screen backdrops, also known as green background cloths or chroma-key backdrops, are a type of professional backdrop widely used in film and television production, video shooting, live streaming, and photography.

[0003] Green screen backdrops typically use a mechanically connected fixing structure to mount the backdrop onto a bracket for secure use.

[0004] Traditional fixing structures are difficult to adjust the flatness and tension of the background cloth, making it hard to ensure its smoothness and affecting the shooting effect. Furthermore, traditional fixing structures are inconvenient to fold and store, taking up a lot of space and making them difficult to carry and transport. Therefore, we propose a magnetic fixing structure for a foldable green screen background cloth to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the difficulty in adjusting the flatness and tension of the background cloth using traditional fixing structures, which makes it difficult to ensure the flatness of the background cloth and affect the shooting effect; and the inconvenience of folding and storing traditional fixing structures, which occupy a lot of space and are not convenient to carry and transport. Therefore, this invention proposes a magnetic fixing structure for foldable green screen background cloth.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a magnetic fixing structure for a foldable green screen backdrop, including a main body of the green screen backdrop, two A support rods and two B support rods, wherein the A support rods and B support rods are rotatably connected, and the two A support rods and two B support rods are located at the upper and lower ends of the rear side of the main body of the green screen backdrop, and further includes:

[0008] Four movable rods, wherein either support rod A or support rod B is located between two movable rods;

[0009] Two support plates are respectively rotatably connected to the rear side of the lower support rod A and support rod B. A connecting plate is provided on the upper side of the support plate, and the connecting block is rotatably connected to the rear side of the upper support rod A and support rod B.

[0010] Eight magnetic blocks A are connected to the back of the main body of the green screen background cloth. The back of each magnetic block A has a connecting groove, and a magnetic block B is magnetically connected to the inside of the connecting groove. The front of the moving rod, the A support rod, and the B support rod has a mounting groove, and the magnetic blocks A and B can slide inside the mounting groove.

[0011] Two magnetic plates, each with a magnetic strip magnetically connected to one side, the magnetic strip being connected to a support plate, and the magnetic plates being connected to the back of the main body of the green screen backdrop;

[0012] Two A-connecting parts are provided, which are located between the A-support rod and the B-support rod, and can position the A-support rod and the B-support rod.

[0013] Four B-connecting parts are located between the support plate and the moving rod, and between the connecting block and the moving rod, respectively. The B-connecting parts are used to position the support plate and the connecting block.

[0014] Four mounting units are located between the B magnetic block and either the A support rod or the B support rod;

[0015] Four A adjustment units are provided, each located between the moving rod and either the A support rod or the B support rod. Each A adjustment unit can adjust the distance between the moving rod and either the A support rod or the B support rod.

[0016] Two B adjustment units are located between the support plate and the connecting block, and the B adjustment units can adjust the distance between the support plate and the connecting block.

[0017] Preferably, the A connecting part includes two A positioning pins, and an A positioning block and a B positioning block are slidably disposed on the outer side of the two A positioning pins. The A positioning block is located to the left of the B positioning block. The A positioning block is connected to the rear side of the A support rod, and the B positioning block is connected to the rear side of the B support rod.

[0018] By adopting the above structure, the A connecting part can position the A support rod and the B support rod, making the A support rod and the B support rod more stable after they are deployed.

[0019] Preferably, the B connecting part includes a B positioning pin, and a C positioning block and a D positioning block are slidably disposed on the outside of the B positioning pin. The C positioning block is located above the D positioning block. The C positioning block is connected to the moving rod, and the D positioning block is connected to the support plate or the connecting block.

[0020] By adopting the above structure, the B connecting part can position the support plate and the connecting block, making the support plate and the connecting block more stable after unfolding.

[0021] Preferably, the installation unit includes two bolts and a C-shaped connecting plate. The C-shaped connecting plate is slidable inside the installation groove. The C-shaped connecting plate is detachably connected to the moving rod, the A support rod, or the B support rod via screws. The installation groove has two limiting grooves inside. The A support rod or the B support rod has dovetail grooves on both its upper and lower sides. The C-shaped connecting plate has A limiting blocks connected to its left and right sides, and an A auxiliary block connected to its inner side. The A auxiliary block is slidable inside the dovetail groove. A B limiting block is provided in front of the A limiting block. The A limiting block is connected to the B magnetic block and the C-shaped connecting plate. The B limiting block is connected to the A magnetic block. The A limiting block and the B limiting block are slidable inside the limiting grooves.

[0022] By adopting the above structure, the installation unit makes the installation and removal of the B magnetic block more convenient, and facilitates the subsequent replacement of the B magnetic block.

[0023] Preferably, the A adjustment unit includes an A adjustment screw and a positioning rod. Both the A support rod and the B support rod have an A positioning groove on one side. The positioning rod can slide inside the A positioning groove. The A adjustment screw has a mounting block that rotates on its outer side, and a driving block that is threadedly engaged on its outer side. The mounting block is connected to the moving rod, and the driving block is connected to either the A support rod or the B support rod.

[0024] By adopting the above structure, the A adjustment unit can adjust the distance between the moving rod and the A support rod or the B support rod, so that the device can position the main body of the green screen background cloth of different sizes and flatten the main body of the green screen background cloth, making the main body of the green screen background cloth more flat after it is fixed.

[0025] Preferably, the B adjustment unit includes two B adjustment screws, a B positioning groove is provided on the upper side of the support plate, a sliding plate slides inside the B positioning groove, the sliding plate is connected to the lower side of the connecting block, a limit strip slides on the outer side of the B adjustment screw, the limit strip is connected to the inner side of the B positioning groove, the B adjustment screw is connected to the connecting block, a positioning nut is provided on the upper side of the limit strip, and the positioning nut and the B adjustment screw are driven by threaded engagement.

[0026] By adopting the above structure, the B adjustment unit can adjust the distance between the connecting block and the support plate, allowing the device to position green screen background cloth of different sizes and to flatten the green screen background cloth, making the green screen background cloth more flat after it is fixed.

[0027] Preferably, an L-shaped mounting plate is connected to one side of the magnetic plate, and the magnetic strip can slide inside the L-shaped mounting plate.

[0028] By adopting the above structure, the L-shaped mounting plate can better position the magnetic plate and make the connection between the magnetic plate and the magnetic strip more stable.

[0029] Preferably, a counterweight placement plate is installed on one side of the support plate.

[0030] By adopting the above structure, corresponding counterweights can be installed on the counterweight placement plate, making the device more stable.

[0031] The magnetic fixing structure for a foldable green screen backdrop proposed in this utility model has the following advantages:

[0032] 1. By setting up support rod A, support rod B, moving rod, support plate, connecting block, adjustment unit A, and adjustment unit B, the distance between the moving rod and support rods A and B, as well as the distance between the support plate and the connecting block, can be adjusted. This allows the device to fix green screen backdrops of different sizes and make the green screen backdrops flat. At the same time, the device can be folded and stored for easy carrying and transportation.

[0033] 2. By setting up the installation unit, the B magnetic block can be easily installed and removed, which is beneficial for subsequent replacement. Attached Figure Description

[0034] Figure 1 This is a front three-dimensional structural diagram of a magnetic fixing structure for a foldable green screen backdrop proposed in this utility model.

[0035] Figure 2 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area A in the middle;

[0036] Figure 3 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area B in the middle section;

[0037] Figure 4 This is a three-dimensional structural diagram of the rear side of a magnetic fixing structure for a foldable green screen backdrop proposed in this utility model.

[0038] Figure 5 The present utility model proposes Figure 4 A magnified three-dimensional structural diagram of a portion of the central C area;

[0039] Figure 6 The present utility model proposes Figure 4 A magnified three-dimensional structural diagram of a portion of the central D region;

[0040] Figure 7 The present utility model proposes Figure 4 A magnified three-dimensional structural diagram of a portion of the central E region;

[0041] Figure 8 The present utility model proposes Figure 4 A magnified three-dimensional structural diagram of a portion of the central F region;

[0042] Figure 9 This is a three-dimensional cross-sectional view of the magnetic fixing structure of a foldable green screen background cloth proposed in this utility model.

[0043] Figure 10 The present utility model proposes Figure 9 A magnified three-dimensional structural diagram of a portion of the G region.

[0044] In the diagram: 1. Support rod A; 2. Support rod B; 3. Magnetic block A; 4. Magnetic plate; 5. Connecting part A; 51. Positioning pin A; 52. Positioning block A; 53. Positioning block B; 6. Connecting part B; 61. Positioning pin B; 62. Positioning block C; 63. Positioning block D; 7. Mounting unit; 71. C-shaped connecting plate; 72. Limiting block A; 73. A auxiliary block A; 74. Limiting block B; 8. Adjusting unit A; 81. Adjusting screw A; 82. Positioning rod; 83. Mounting block; 84. Driving block; 9. Adjusting unit B; 91. Adjusting screw B; 92. Sliding; 93. Limiting strip; 94. Positioning nut; 10. Green screen background cloth main body; 11. Moving rod; 12. Support plate; 13. Connecting block; 14. Magnetic block B; 15. Magnetic strip; 16. L-shaped mounting plate; 17. Counterweight placement plate. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0046] Reference Figure 1-10 A magnetic fixing structure for a foldable green screen backdrop includes a green screen backdrop body 10, two A support rods 1 and two B support rods 2, which are rotatably connected. The two A support rods 1 and two B support rods 2 are located at the upper and lower ends of the rear side of the green screen backdrop body 10. It also includes: four moving rods 11, two support plates 12, eight A magnetic blocks 3, two magnetic plates 4, two A connecting parts 5, four B connecting parts 6, four mounting units 7, four A adjustment units 8, and two B adjustment units 9.

[0047] A connecting part 5 is located between A support rod 1 and B support rod 2. A connecting part 5 can position A support rod 1 and B support rod 2. A connecting part 5 includes two A positioning pins 51. A positioning block 52 and B positioning block 53 slide on the outside of the two A positioning pins 51. A positioning block 52 is located to the left of B positioning block 53. A positioning block 52 is connected to the rear side of A support rod 1, and B positioning block 53 is connected to the rear side of B support rod 2. When A support rod 1 and B support rod 2 are rotated and unfolded, A positioning block 52 and B positioning block 53 come into contact. Then A positioning pin 51 passes through A positioning block 52 and B positioning block 53 to connect A positioning block 52 and B positioning block 53 together, so that A support rod 1 and B support rod 2 can no longer be rotated and folded, making the device more stable after unfolding.

[0048] A counterweight placement plate 17 is installed on one side of the support plate 12. A corresponding counterweight block can be installed on the counterweight placement plate 17 to make the device more stable. The two support plates 12 are rotatably connected to the rear side of the lower A support rod 1 and B support rod 2 respectively. A connecting plate is provided on the upper side of the support plate 12. The connecting block 13 is rotatably connected to the rear side of the upper A support rod 1 and B support rod 2.

[0049] Connection part B 6 is located between support plate 12 and moving rod 11 and between connecting block 13 and moving rod 11. Connection part B 6 is used to position support plate 12 and connecting block 13. Connection part B 6 includes B positioning pin 61. C positioning block 62 and D positioning block 63 slide on the outside of B positioning pin 61. C positioning block 62 is located above D positioning block 63. C positioning block 62 is connected to moving rod 11. D positioning block 63 is connected to support plate 12 or connecting block 13. When support plate 12 and connecting block 13 are rotated and unfolded, support plate 12 and connecting block 13 are perpendicular to moving rod 11. Then C positioning block 62 and D positioning block 63 are in contact with each other. Then B positioning pin 61 passes through C positioning block 62 and D positioning block 63, preventing support plate 12 and connecting block 13 from rotating. This makes support plate 12 and connecting block 13 more stable after unfolding, improving the stability of the device.

[0050] A magnetic block 3 is connected to the back of the green screen background cloth body 10. A connecting groove is provided on the back of A magnetic block 3. A magnetic block 14 is magnetically connected to the inside of the connecting groove. An installation groove is provided on the front of the moving rod 11, A support rod 1 and B support rod 2. A magnetic block 3 and B magnetic block 14 can slide inside the installation groove.

[0051] The mounting unit 7 is located between the magnetic block 14 (B) and either the support rod 1 (A) or the support rod 2 (B);

[0052] The mounting unit 7 includes two bolts and a C-shaped connecting plate 71. The C-shaped connecting plate 71 can slide inside the mounting groove. The C-shaped connecting plate 71 is detachably connected to the moving rod 11, or support rod A 1, or support rod B 2 via a screw. Two limiting grooves are provided inside the mounting groove. Dovetail grooves are provided on both the upper and lower sides of support rod A 1 or support rod B 2. A limiting blocks 72 are connected to the left and right sides of the C-shaped connecting plate 71. An auxiliary block 73 is connected to the inside of the C-shaped connecting plate 71. The auxiliary block 73 can slide inside the dovetail groove. A limiting block 74 is provided in front of the limiting block 72. The limiting block 72 is connected to the magnetic block 14 and the C-shaped connecting plate 71. The limiting block 74 is connected to the magnetic block 14. The connection is made between the two sides. Limiting block A 72 and limiting block B 74 can slide inside the limiting groove. A auxiliary block A 73 and limiting block A 72 allow the C-shaped connecting plate 71 to be installed more stably in the mounting groove. At the same time, limiting block A 72 guides and limits magnetic block B 14, making magnetic block B 14 more stable after installation and making the installation and disassembly of magnetic block B 14 more convenient and easy to replace later. Limiting block B 74 guides and limits magnetic block A 3, allowing magnetic block A 3 to connect better with magnetic block B 14. When magnetic block A 3 contacts magnetic block B 14, the connection, fixation and limiting of the upper and lower sides of the green screen background cloth body 10 are achieved.

[0053] A magnetic strip 15 is magnetically connected to one side of the magnetic plate 4. After the magnetic strip 15 is connected to the magnetic plate 4, it fixes and limits the connection on both sides of the green screen background cloth body 10. The magnetic strip 15 is connected to the support plate 12. The magnetic plate 4 is connected to the rear side of the green screen background cloth body 10. An L-shaped mounting plate 16 is connected to one side of the magnetic plate 4. The magnetic strip 15 can slide inside the L-shaped mounting plate 16. The L-shaped mounting plate 16 can better position the magnetic plate 4 and make the connection between the magnetic plate 4 and the magnetic strip 15 more stable.

[0054] Support rod 1 or support rod 2 is located between two moving rods 11. Adjustment unit 8 is located between moving rod 11 and support rod 1 or support rod 2. Adjustment unit 8 can adjust the distance between moving rod 11 and support rod 1 or support rod 2.

[0055] Adjustment unit 8 includes adjustment screw 81 and positioning rod 82. Positioning grooves are provided on one side of support rod 1 and support rod 2. Positioning rod 82 can slide inside the positioning groove. Positioning rod 82 guides and limits the movement of rod 11, making its movement more stable. An installation block 83 rotates on the outside of adjustment screw 81, and a driving block 84 is driven by threaded engagement on the outside of adjustment screw 81. The installation block 83 is connected to the movement of rod 11, and the driving block 84 is connected to support rod 1 or support rod 2. The device connects to support rod 2 (B). By rotating adjustment screw 81 (A), the driving block 84 is adjusted left and right on adjustment screw 81, thereby adjusting the distance between the driving block 84 and the mounting block 83. This adjusts the distance between the moving rod 11 and support rod 1 (A) or support rod 2 (B), allowing the device to position green screen background cloth bodies 10 of different sizes and to flatten the green screen background cloth bodies 10, making the green screen background cloth bodies 10 more flat after being fixed.

[0056] B adjustment unit 9 is located between support plate 12 and connecting block 13. B adjustment unit 9 can adjust the distance between support plate 12 and connecting block 13.

[0057] The B adjustment unit 9 includes two B adjustment screws 91. A B positioning groove is provided on the upper side of the support plate 12. A sliding plate 92 slides inside the B positioning groove and is connected to the lower side of the connecting block 13. A limit strip 93 slides on the outer side of the B adjustment screws 91 and is connected to the inner side of the B positioning groove. The B adjustment screws 91 are connected to the connecting block 13. A positioning nut 94 is provided on the upper side of the limit strip 93. The positioning nut 94 and the B adjustment screws 91 are driven by threaded engagement. By moving the connecting block 13, the distance between the connecting block 13 and the support plate 12 is adjusted. The connecting block 13 will move the B adjustment screws 91 within the limit... The sliding plate 92 moves along with the connecting block 13 as the sliding plate 92 slides on the positioning bar 93. At the same time, the limiting bar 93 positions the sliding plate 92, making its movement more stable. After the connecting block 13 is in place, the positioning nut 94 is screwed onto the upper side of the limiting bar 93 to position the B adjusting screw 91, thereby positioning the connecting block 13. By adjusting the distance between the connecting block 13 and the support plate 12, the device can position green screen background cloth bodies 10 of different sizes and flatten the green screen background cloth bodies 10, making them more flat after being fixed.

[0058] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0059] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A magnetic fixing structure for a foldable green screen backdrop, comprising a green screen backdrop body (10), two A support rods (1) and two B support rods (2), wherein the A support rods (1) and B support rods (2) are rotatably connected, and the two A support rods (1) and two B support rods (2) are located at the upper and lower ends of the rear side of the green screen backdrop body (10), characterized in that, Also includes: Four movable rods (11), wherein the A support rod (1) or the B support rod (2) is located between two movable rods (11); Two support plates (12) are rotatably connected to the rear side of the lower A support rod (1) and B support rod (2) respectively. A connecting block (13) is provided on the upper side of the support plate (12), and the connecting block (13) is rotatably connected to the rear side of the upper A support rod (1) and B support rod (2). Eight magnetic blocks (3) are connected to the back of the green screen background cloth body (10). The back of the magnetic blocks (3) is provided with a connecting groove. The inner side of the connecting groove is magnetically connected to a magnetic block (14). The front of the moving rod (11), the A support rod (1) and the B support rod (2) is provided with an installation groove. The magnetic blocks (3) and the B magnetic blocks (14) can slide inside the installation groove. Two magnetic plates (4), one side of which is magnetically connected to a magnetic strip (15), the magnetic strip (15) is connected to a support plate (12), and the magnetic plates (4) are connected to the back of the green screen background cloth body (10). Two A connecting parts (5) are located between the A support rod (1) and the B support rod (2). The A connecting parts (5) can position the A support rod (1) and the B support rod (2). Four B-connecting parts (6) are located between the support plate (12) and the moving rod (11) and between the connecting block (13) and the moving rod (11), respectively. The B-connecting parts (6) are used to position the support plate (12) and the connecting block (13). Four mounting units (7) are located between the B magnetic block (14) and the A support rod (1) or the B support rod (2); Four A adjustment units (8) are located between the moving rod (11) and the A support rod (1) or the B support rod (2). The A adjustment units (8) can adjust the distance between the moving rod (11) and the A support rod (1) or the B support rod (2). Two B adjustment units (9) are located between the support plate (12) and the connecting block (13). The B adjustment units (9) can adjust the distance between the support plate (12) and the connecting block (13).

2. The magnetic fixing structure for a foldable green screen backdrop according to claim 1, characterized in that, The A connecting part (5) includes two A positioning pins (51), and an A positioning block (52) and a B positioning block (53) slide on the outside of the two A positioning pins (51). The A positioning block (52) is located to the left of the B positioning block (53). The A positioning block (52) is connected to the rear side of the A support rod (1), and the B positioning block (53) is connected to the rear side of the B support rod (2).

3. The magnetic fixing structure for a foldable green screen backdrop according to claim 1, characterized in that, The B connecting part (6) includes a B positioning pin (61), and a C positioning block (62) and a D positioning block (63) slide on the outside of the B positioning pin (61). The C positioning block (62) is located on the upper side of the D positioning block (63). The C positioning block (62) is connected to the moving rod (11), and the D positioning block (63) is connected to the support plate (12) or the connecting block (13).

4. The magnetic fixing structure for a foldable green screen backdrop according to claim 1, characterized in that, The mounting unit (7) includes two bolts and a C-shaped connecting plate (71). The C-shaped connecting plate (71) is slidable inside the mounting groove. The C-shaped connecting plate (71) is detachably connected to the moving rod (11), the A support rod (1), or the B support rod (2) via a screw. The mounting groove has two limiting grooves inside. The A support rod (1) or the B support rod (2) has dovetail grooves on both the upper and lower sides. The C-shaped connecting plate (71) is connected to the A limiting grooves on both the left and right sides. The inner side of the positioning block (72) and the C-shaped connecting plate (71) is connected to the A auxiliary block (73). The A auxiliary block (73) can slide inside the dovetail groove. The front side of the A limiting block (72) is provided with a B limiting block (74). The A limiting block (72) is connected to the B magnetic block (14) and the C-shaped connecting plate (71). The B limiting block (74) is connected to the A magnetic block (3). The A limiting block (72) and the B limiting block (74) can slide inside the limiting groove.

5. The magnetic fixing structure for a foldable green screen backdrop according to claim 1, characterized in that, The A adjustment unit (8) includes an A adjustment screw (81) and a positioning rod (82). The A support rod (1) and the B support rod (2) are each provided with an A positioning groove on one side. The positioning rod (82) can slide inside the A positioning groove. The A adjustment screw (81) has a mounting block (83) rotating on its outer side. The A adjustment screw (81) has a driving block (84) driven by a threaded engagement on its outer side. The mounting block (83) is connected to the moving rod (11). The driving block (84) is connected to the A support rod (1) or the B support rod (2).

6. The magnetic fixing structure for a folded green screen backdrop according to claim 1, characterized in that, The B adjustment unit (9) includes two B adjustment screws (91). The upper side of the support plate (12) is provided with a B positioning groove. A sliding plate (92) slides inside the B positioning groove. The sliding plate (92) is connected to the lower side of the connecting block (13). A limit strip (93) slides on the outer side of the B adjustment screw (91). The limit strip (93) is connected to the inner side of the B positioning groove. The B adjustment screw (91) is connected to the connecting block (13). A positioning nut (94) is provided on the upper side of the limit strip (93). The positioning nut (94) and the B adjustment screw (91) are driven by threaded engagement.

7. The magnetic fixing structure for a foldable green screen backdrop according to claim 1, characterized in that, The magnetic plate (4) is connected to an L-shaped mounting plate (16) on one side, and the magnetic strip (15) can slide inside the L-shaped mounting plate (16).

8. The magnetic fixing structure for a foldable green screen backdrop according to claim 1, characterized in that, A counterweight placement plate (17) is installed on one side of the support plate (12).

Images