Movie projection screen frame

Abstract

The utility model discloses a movie projection screen frame in the technical field of movie screens, which comprises a base, supports are respectively mounted at the top of the base and close to two ends, a driving part is mounted on one side of each support, a screen box is mounted between the two driving parts, and a screen is mounted at the bottom of the inner side of the screen box. The base can support the support, the support supports the screen box through the driving part, the screen box can be installed and fixed through the lock catch assembly so that an operator can conveniently take and unload the screen box for overhaul or replacement, and the supporting height of the screen box is adjusted through the change of the supporting height of the driving part. The problems that film screens of different heights cannot be conveniently supported and fixed, screen equipment cannot be conveniently installed and fixed, the convenience of disassembling the screen equipment for overhauling or replacing is reduced, the fixing effect of screen drooping is poor, the screen is likely to shake due to air flow, and the watching effect of film projection is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of movie screens, in particular to a movie projection screen frame. Background Art

[0002] The screen refers to the white screen that displays the projection when playing movies. The screen is used to project enlarged images (pictures) when showing movies and slides. The original screen was made of white cloth. In order to improve the reflectivity of light and keep the projected picture bright enough, the diffuse reflection screen used in general theaters is made of cloth or plastic coated with barium sulfate or metal powder. When showing movies, the movie screen is usually propped up and fixed with a screen stand. The existing screen stands are usually of fixed height, which is not convenient for installation and support of movie screens of different heights, affecting the viewing effect of the movie screening.

[0003] The support height of the existing screen frame is usually fixed, which cannot conveniently adapt to the support and fixation of movie screens of different heights, is not convenient for installing and fixing the screen equipment, reduces the convenience of disassembling the screen equipment for inspection or replacement, and the fixing effect of the drooping screen is not good. The screen is easily shaken by air flow, affecting the viewing effect of the movie projection. Therefore, technical personnel in this field provide a movie projection screen frame to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a movie projection screen frame to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a movie projection screen frame, comprising a base, a bracket is installed on the top of the base and near both ends, a driving member is installed on one side of the bracket, a screen box is installed between the two driving members, and a screen is installed on the bottom inside the screen box;

[0006] A locking assembly is installed between the driving member and the screen box, and a clamping assembly for fixing the screen is installed on the top of the base and between the two brackets, and the bracket is fixedly connected to the base.

[0007] Preferably: the driving member includes a motor installed at the bottom of the bracket, a movable groove is opened on one side of the bracket, a screw rod penetrates the inner side of the movable groove, a driving block is mounted on the inner side of the movable groove and located on the outer side of the screw rod, a support frame is installed on the top of the driving block, the screw rod penetrates the driving block and is threadedly connected to the driving block, the driving block is slidably connected to the movable groove, and the support frame is movably connected to the screen box.

[0008] Preferably: the locking assembly includes a fixed block installed on the other side of the support frame, a sliding rod passes through the inner side of the fixed block, a fixing part is connected to the bottom of the sliding rod, a first spring is sleeved on the outer side of the sliding rod, two ends of the first spring are respectively fixedly connected to the fixed block and the fixing part, and the sliding rod passes through the fixed block and is slidably connected thereto.

[0009] Preferably: the locking assembly also includes a connecting plate which is sleeved on the outside of the sliding rod and close to the top, the bottom of the connecting plate is connected to a locking plate, a movable through hole is opened on the top of the support frame, the connecting plate is fixedly connected to the locking plate, and the locking plate is slidably connected to the movable through hole.

[0010] Preferably: the clamping assembly includes a plurality of fixing grooves evenly arranged on the top of the base, a sliding plate is slidably connected to the inner side of the fixing groove, a clamping plate is connected to the top of the plurality of sliding plates, a fixing strip is connected to the top of the base and located on the other side of the curtain, and the sliding plate is fixedly connected to the clamping plate.

[0011] Preferably: the clamping assembly also includes a pull rod passing through the fixed groove and located on one side of the sliding plate, one end of each of the pull rods is connected to a driving plate, a second spring is sleeved on the outside of the pull rod, and both ends of the second spring are fixedly connected to the fixed groove and the sliding plate respectively.

[0012] Preferably, the cross-sections of the driving block and the movable groove are both convex-shaped.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by arranging a bracket and a screen, the base can support the bracket, the bracket supports the screen box through a driving member, and the screen box can be installed and fixed by a locking assembly, so that an operator can remove the screen box for inspection or replacement. The support height of the screen box can be adjusted by changing the support height of the driving member, so that screens of different heights can be unfolded and fixed. The bottom of the screen can be clamped and fixed by a clamping assembly to prevent the screen from shaking due to the influence of air flow, thereby affecting the effect of watching a movie.

[0015] 2. In the utility model, by arranging a screw rod, a driving block and a support frame, the screw rod can drive the driving block to slide up and down in the movable groove, and the driving block drives the screen box to move up and down through the support frame, thereby improving the convenience and stability of adjusting the support frame to drive the screen box to support the height.

[0016] 3. In the utility model, by providing a first spring, a connecting plate and a locking plate, the first spring at the bottom of the fixed block can press down the fixing part, and the fixing part drives the locking plate at the bottom of the connecting plate to move downward through the sliding rod, so that the locking plate passes through the movable through hole to limit and fix the screen box, thereby improving the convenience and stability of disassembling and assembling the screen box for inspection or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0019] Figure 3 The front cutaway view of the overall structure of the utility model is Figure 1 ;

[0020] Figure 4 The front cutaway view of the overall structure of the utility model is Figure 2 ;

[0021] Figure 5 The overall structure of the utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 6 The overall structure of the utility model Figure 4 Enlarged view of point B in the middle.

[0023] In the figure: 1. base; 2. bracket; 3. screen box; 4. screen; 5. motor; 6. movable slot; 7. screw; 8. drive block; 9. support frame; 10. fixed block; 11. sliding rod; 12. fixing part; 13. first spring; 14. connecting plate; 15. locking plate; 16. movable through hole; 17. fixing slot; 18. sliding plate; 19. clamping plate; 20. fixing strip; 21. pull rod; 22. driving plate; 23. second spring. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 to Figure 6In an embodiment of the utility model, a movie projection screen frame includes a base 1, a bracket 2 is installed on the top of the base 1 and near both ends, a driving member is installed on one side of the bracket 2, a screen box 3 is installed between the two driving members, a screen 4 is installed at the bottom inside the screen box 3, a locking component is installed between the driving member and the screen box 3, a clamping component for fixing the screen 4 is installed on the top of the base 1 and between the two brackets 2, and the bracket 2 is fixedly connected to the base 1.

[0026] When in use, the base 1 can support the bracket 2, and the bracket 2 supports the screen box 3 through the driving member. The screen box 3 can be installed and fixed by using the locking assembly, so that the operator can remove the screen box 3 for inspection or replacement. The supporting height of the screen box 3 can be adjusted by changing the supporting height of the driving member, so that the screen 4 of different heights can be unfolded and fixed. The bottom of the screen 4 can be clamped and fixed by the clamping assembly to prevent the screen 4 from being affected by the air flow and causing the screen 4 to shake, affecting the effect of watching a movie.

[0027] In one embodiment, specifically, the driving member includes a motor 5 installed at the bottom of the bracket 2, a movable groove 6 is opened on one side of the bracket 2, a screw rod 7 penetrates the inner side of the movable groove 6, a driving block 8 is mounted on the inner side of the movable groove 6 and on the outer side of the screw rod 7, a support frame 9 is installed on the top of the driving block 8, the screw rod 7 penetrates the driving block 8 and is screwed thereto, the cross-sections of the driving block 8 and the movable groove 6 are both "convex" shaped, the driving block 8 is slidably connected to the movable groove 6, and the support frame 9 is movably connected to the screen box 3.

[0028] Among them, the movable groove 6 can limit and guide the driving block 8 to prevent the driving block 8 from offsetting or shaking. The screw 7 can drive the driving block 8 to slide up and down in the movable groove 6. The driving block 8 drives the screen box 3 to move up and down through the support frame 9, thereby improving the convenience and stability of adjusting the support frame 9 to drive the screen box 3 to support the height.

[0029] Furthermore, the locking assembly includes a fixed block 10 installed on the other side of the support frame 9, a sliding rod 11 passes through the inner side of the fixed block 10, a fixing portion 12 is connected to the bottom of the sliding rod 11, a first spring 13 is sleeved on the outer side of the sliding rod 11, the locking assembly also includes a connecting plate 14 sleeved on the outer side of the sliding rod 11 and close to the top, a locking plate 15 is connected to the bottom of the connecting plate 14, a movable through hole 16 is opened on the top of the support frame 9, the connecting plate 14 is fixedly connected to the locking plate 15, the locking plate 15 is slidably connected to the movable through hole 16, the two ends of the first spring 13 are respectively fixedly connected to the fixed block 10 and the fixing portion 12, the sliding rod 11 passes through the fixed block 10 and is slidably connected thereto.

[0030] In one embodiment, specifically, the first spring 13 at the bottom of the fixed block 10 can press down the fixing part 12, and the fixing part 12 drives the locking plate 15 at the bottom of the connecting plate 14 to move downward through the sliding rod 11, so that the locking plate 15 passes through the movable through hole 16 to limit and fix the screen box 3, thereby improving the convenience and stability of disassembling and assembling the screen box 3 for inspection or replacement.

[0031] Among them, the clamping assembly includes a plurality of fixed grooves 17 evenly arranged on the top of the base 1, a sliding plate 18 is slidably connected to the inner side of the fixed groove 17, a clamping plate 19 is connected to the top of the plurality of sliding plates 18, a fixing strip 20 is connected to the top of the base 1 and located on the other side of the curtain 4, the clamping assembly also includes a pull rod 21 that passes through the fixed groove 17 and is located on one side of the sliding plate 18, one end of the plurality of pull rods 21 is connected to a driving plate 22, a second spring 23 is mounted on the outer side of the pull rod 21, the two ends of the second spring 23 are respectively fixedly connected to the fixed groove 17 and the sliding plate 18, and the sliding plate 18 is fixedly connected to the clamping plate 19.

[0032] Furthermore, the second spring 23 in the fixing groove 17 can squeeze and push the sliding plate 18, and then the sliding plate 18 drives the clamping plate 19 to approach the fixing bar 20, so that the fixing bar 20 and the clamping plate 19 clamp and fix the bottom of the curtain 4 to prevent the curtain 4 from shaking, and the sliding plate 18 at one end of the plurality of pull rods 21 is driven to move by the driving plate 22, so that the sliding plate 18 drives the clamping plate 19 away from the fixing bar 20, so as to facilitate the taking and placing of the curtain 4.

[0033] The working principle of this utility model:

[0034] First, place the screen box 3 on one side of the support frame 9, and then slowly release the sliding rod 11. At this time, the first spring 13 at the bottom of the fixing block 10 presses the fixing part 12 downward, and then the fixing part 12 drives the locking plate 15 at the bottom of the connecting plate 14 to move downward through the sliding rod 11, so that the locking plate 15 passes through the movable through hole 16 to limit and fix the screen box 3, and then start the motor 5 to drive the screw 7 to rotate, and then the screw 7 drives the driving block 8 to slide upward in the movable groove 6, and at the same time the driving block 8 drives the screen box through the support frame 9 3 moves upward, and then the screen 4 at the bottom of the screen box 3 is pulled down and unfolded, and then the driving plate 22 drives the sliding plate 18 at one end of the plurality of pull rods 21 to move, so that the sliding plate 18 drives the clamping plate 19 away from the fixing bar 20, and then the bottom of the screen 4 is placed between the fixing bar 20 and the clamping plate 19, at this time, the second spring 23 in the fixing groove 17 squeezes and pushes the sliding plate 18, and then the sliding plate 18 drives the clamping plate 19 to approach the fixing bar 20, so that the fixing bar 20 and the clamping plate 19 clamp and fix the bottom of the screen 4.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A movie projection screen frame, comprising a base (1), characterized in that: Brackets (2) are respectively installed on the top of the base (1) and near both ends, a driving member is installed on one side of the bracket (2), a screen box (3) is installed between the two driving members, and a screen (4) is installed at the bottom inside the screen box (3); A locking assembly is installed between the driving member and the screen box (3), and a clamping assembly for fixing the screen (4) is installed on the top of the base (1) and between the two brackets (2), and the brackets (2) are fixedly connected to the base (1).

2. A movie screen stand according to claim 1, characterized in that: The driving member comprises a motor (5) installed at the bottom of a bracket (2); a movable groove (6) is provided on one side of the bracket (2); a screw rod (7) penetrates the inner side of the movable groove (6); a driving block (8) is sleeved on the inner side of the movable groove (6) and located on the outer side of the screw rod (7); a support frame (9) is installed on the top of the driving block (8); the screw rod (7) penetrates the driving block (8) and is screwed thereto; the driving block (8) is slidably connected to the movable groove (6); and the support frame (9) is movably connected to the screen box (3).

3. A movie screen stand according to claim 2, characterized in that: The locking assembly comprises a fixed block (10) installed on the other side of the support frame (9), a sliding rod (11) passes through the inner side of the fixed block (10), a fixing portion (12) is connected to the bottom of the sliding rod (11), a first spring (13) is sleeved on the outer side of the sliding rod (11), two ends of the first spring (13) are respectively fixedly connected to the fixed block (10) and the fixing portion (12), and the sliding rod (11) passes through the fixed block (10) and is slidably connected thereto.

4. A movie projection screen frame according to claim 3, characterized in that: The locking assembly also includes a connecting plate (14) which is sleeved on the outside of the sliding rod (11) and close to the top, the bottom of the connecting plate (14) is connected to a locking plate (15), the top of the support frame (9) is provided with a movable through hole (16), the connecting plate (14) is fixedly connected to the locking plate (15), and the locking plate (15) is slidably connected to the movable through hole (16).

5. The movie projection screen frame according to claim 1, characterized in that: The clamping assembly comprises a plurality of fixed grooves (17) arranged evenly on the top of the base (1), a sliding plate (18) is slidably connected to the inner side of the fixed groove (17), a clamping plate (19) is connected to the top of the plurality of sliding plates (18), a fixing strip (20) is connected to the top of the base (1) and located on the other side of the curtain (4), and the sliding plate (18) is fixedly connected to the clamping plate (19).

6. A movie projection screen frame according to claim 5, characterized in that: The clamping assembly also includes a pull rod (21) that passes through the fixed groove (17) and is located on one side of the sliding plate (18), and one end of each of the pull rods (21) is connected to a driving plate (22). A second spring (23) is sleeved on the outside of the pull rod (21), and both ends of the second spring (23) are fixedly connected to the fixed groove (17) and the sliding plate (18), respectively.

7. The movie projection screen frame according to claim 2, characterized in that: The cross sections of the driving block (8) and the movable groove (6) are both in the shape of a "convex" character.

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