Quickly replaceable background curtain wall structure for film shooting

Abstract

The utility model discloses a film shooting background curtain wall structure capable of being rapidly replaced. The film shooting background curtain wall structure comprises a support, a hanging rod and a lifting mechanism. Supporting mechanisms are arranged on the left side and the right side of the lower end of each support; round buckles are arranged at the two ends of the hanging rod, and hooks which are evenly distributed are arranged on the outer side of the middle of the hanging rod; the lifting mechanism comprises chain wheels, supporting plates, lifting tables and lifting rods, the supporting plates are fixedly connected to the upper end and the lower end of the interior of the support, the chain wheels are rotationally connected to the opposite inner side faces of every two vertically-adjacent supporting plates through rotating shafts, every two vertically-adjacent chain wheels are rotationally connected through a chain, and the lifting tables are arranged in the middles of the chains; according to the film shooting background curtain wall structure capable of being rapidly replaced, the hanging rods for hanging the curtain are lifted, and therefore personnel can conveniently and rapidly take down the curtain.

Description

Technical Field

[0001] The utility model relates to the technical field of movie shooting equipment, in particular to a background curtain wall structure for movie shooting which can be replaced quickly. Background Art

[0002] The special effects background curtain wall for film and television production is a device used to provide a background during the production of film and television special effects. A curtain is needed to block the background when shooting special effects.

[0003] When arranging the background curtain wall, the brackets are first fixed, and then the curtains used are hung between the brackets. Since the brackets are too high, personnel need to climb up the upper end of the brackets or use other devices to send themselves to the upper end of the brackets when hanging the curtains. The method of climbing up the brackets is dangerous, and climbing up the brackets and using other devices are both troublesome. For this reason, we propose a background curtain wall structure for filming that can be quickly replaced. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a background curtain wall structure for filming that can be quickly replaced. By lifting and lowering the hanging rod for hanging the curtain, it is convenient for personnel to quickly remove the curtain, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quickly replaceable background curtain wall structure for filming, comprising a bracket, a hanging rod and a lifting mechanism;

[0006] Bracket: There are two of them, and support mechanisms are provided on both the left and right sides of the lower end of the bracket;

[0007] Hanging rod: There are round buckles at both ends of the hanging rod, and evenly distributed hooks are arranged on the outside of the middle part of the hanging rod;

[0008] Lifting mechanism: It includes a sprocket, a support plate, a lifting platform and a lifting rod. The upper and lower ends of the bracket are fixedly connected to the support plates. The relative inner sides of the two upper and lower adjacent support plates are rotatably connected to the sprockets through a rotating shaft. The two vertically adjacent sprockets are rotatably connected by a chain. A lifting platform is provided in the middle of the chain. The middle of the front side of the lifting platform is fixedly connected to the lifting rod. The circular buckles of the hanging rod are respectively mounted on the middle of the adjacent lifting rods. The curtain is lifted and lowered by the chain to achieve rapid replacement of the curtain. The personnel do not need to deliver it to the upper end of the bracket themselves, which solves the danger of personnel climbing up the bracket themselves and reduces the trouble of raising and lowering the frame due to the replacement of the background curtain wall for film shooting.

[0009] Furthermore, it also includes a control box, which is fixedly connected to the right side of the right bracket. A PLC controller is arranged inside the control box, and the input end of the PLC controller is electrically connected to an external power supply to control the electrical appliance.

[0010] Furthermore, the lifting mechanism also includes a motor, which is fixedly connected to the opposite outer sides of the two support plates at the lower end, and the output shaft of the motor is fixedly connected to the adjacent rotating shafts, and the input end of the motor is electrically connected to the output end of the PLC controller to drive the sprocket to rotate.

[0011] Furthermore, the lifting mechanism also includes a guide frame and a pulley. The front side of the interior of the bracket is welded with a guide frame that is symmetrically distributed on the left and right. The upper and lower ends of the front side of the lifting platform are rotatably connected with pulleys that are symmetrically distributed on the left and right through a rotating shaft. The outer sides of the pulleys are respectively slidably connected to the rear sides of the adjacent guide frames, so that the lifting of the lifting platform is more stable.

[0012] Furthermore, the lower end of the bracket is fixedly connected to a mounting plate, and the upper end of the mounting plate is provided with a distance sensor, which corresponds to the upper and lower positions of the upper lifting platform respectively. The distance sensors are bidirectionally electrically connected to the PLC controller to detect the relative distance of the lifting platform to avoid collision with the sprocket.

[0013] Furthermore, the supporting mechanism includes an upper supporting frame, a lower supporting frame and a positioning rod, the left and right sides of the lower end of the supporting frame are rotatably connected to the lower supporting frame which is symmetrically distributed front and back through a rotating seat 1, the left and right sides of the lower end of the supporting frame are rotatably connected to the upper supporting frame which is symmetrically distributed front and back through a rotating seat 2, the upper supporting frame is fixedly connected to the positioning rod at one end away from the supporting frame, and the lower supporting frame is provided with a positioning groove at one end away from the supporting frame, and the positioning rods are respectively clamped in the inside of the positioning grooves of the vertically adjacent lower supporting frames, so that the supporting frame can stand more stably.

[0014] Furthermore, the support mechanism also includes a threaded seat 1, a fixing bolt and a threaded seat 2. The middle part of the upper support frame is rotatably connected to the threaded seat 1, the middle part of the threaded seat 1 is threadedly connected to the fixing bolt, the middle part of the bottom wall of the lower support frame is fixedly connected to the threaded seat 2, and the lower ends of the fixing bolts are respectively threadedly connected to the inside of the vertically adjacent threaded seat 2 to prevent the upper support frame from detaching.

[0015] Furthermore, the support mechanism also includes an avoidance groove 1 and an avoidance groove 2. The side surfaces of the lower support frame are respectively provided with an avoidance groove 1 and an avoidance groove 2. The avoidance groove 1 is located at one end close to the adjacent support, and the avoidance groove 2 is located at one end away from the adjacent support, so that the vertically adjacent upper support frame and lower support frame completely overlap.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the background curtain wall structure for filming that can be quickly replaced has the following advantages:

[0017] The PLC controller controls the two motors to start, and the output shaft of the motor drives the sprocket at the lower end to rotate, and the chain drives the sprocket at the upper end to rotate. The lifting platform follows the chain to move up and down to realize the lifting of the lifting platform. While the lifting platform is rising and falling, the outer side surfaces of the pulleys are slidably connected with the rear side surfaces of the adjacent guide frames, making the lifting of the lifting platform more stable. The distance sensor measures the relative distance to the vertically adjacent lifting platform in real time and feeds back to the PLC controller. When the lifting platform exceeds the set relative distance, the PLC controller turns off the motor to avoid the collision between the lifting platform and the sprockets on the upper and lower sides, and lowers the lifting platform to a suitable Height, and then hang the curtain through the hook of the hanging rod, and then respectively set the round buckle on the middle of the two lifting rods. The front end of the lifting rods is arc-shaped to prevent the round buckle from detaching. The inner diameter of the round buckle is 3-5mm larger than the cross-sectional diameter of the lifting rod to prevent the curtain from falling off due to the flipping of the hanging rod. The round buckles of the hanging rod for hanging the curtain are respectively set on the outside of the adjacent lifting rods and lifted and lowered by the chain to achieve rapid replacement of the curtain. The staff do not need to deliver it to the upper end of the bracket themselves, which solves the dangerous problem caused by the staff climbing up the bracket themselves and reduces the trouble of raising and lowering the frame due to the replacement of the background curtain wall for filming. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an enlarged structural diagram of the utility model at A;

[0020] Figure 3 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0021] In the figure: 1 bracket, 2 lifting mechanism, 21 motor, 22 sprocket, 23 guide frame, 24 support plate, 25 lifting platform, 26 pulley, 27 lifting rod, 3 support mechanism, 31 avoidance groove 1, 32 upper support frame, 33 lower support frame, 34 threaded seat 1, 35 fixing bolt, 36 threaded seat 2, 37 avoidance groove 2, 38 positioning rod, 4 mounting plate, 5 distance sensor, 6 hanging rod, 7 round buckle, 8 control box. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-3, This embodiment provides a technical solution: a quickly replaceable background curtain wall structure for filming, comprising a bracket 1, a hanging rod 6 and a lifting mechanism 2;

[0024] Bracket 1: There are two of them. Support mechanisms 3 are provided on the left and right sides of the lower end of the bracket 1. The lower end of the bracket 1 is fixedly connected with a mounting plate 4. The upper end of the mounting plate 4 is provided with a distance sensor 5. The distance sensors 5 correspond to the upper and lower positions of the lifting platform 25 at the upper end respectively. The distance sensors 5 are bidirectionally electrically connected to the PLC controller.

[0025] The supporting mechanism 3 comprises an upper supporting frame 32, a lower supporting frame 33 and a positioning rod 38. The left and right sides of the lower end of the supporting frame 1 are rotatably connected with the lower supporting frame 33 which is symmetrically distributed front and back through a rotating seat 1. The left and right sides of the lower end of the supporting frame 1 are rotatably connected with the upper supporting frame 32 which is symmetrically distributed front and back through a rotating seat 2. The end of the upper supporting frame 32 away from the supporting frame 1 is fixedly connected with the positioning rod 38. The end of the lower supporting frame 33 away from the supporting frame 1 is provided with a positioning groove. The positioning rod 38 is respectively clamped in the interior of the positioning groove of the vertically adjacent lower supporting frame 33. The supporting mechanism 3 also comprises a threaded seat 1 34, a fixing bolt 35 and a threaded seat 2 36. The middle part of the upper supporting frame 32 is rotatably connected with the threaded seat 1 34. The middle part of the threaded seat 1 34 is threadedly connected with the fixing bolt 35. The middle part of the bottom wall of the lower supporting frame 33 is fixedly connected with the threaded seat 2 36. The lower ends of the fixing bolts 35 are respectively threadedly connected to the vertically adjacent The support mechanism 3 further includes an avoidance groove 1 31 and an avoidance groove 2 37 inside the adjacent threaded seat 2 36. The side surfaces of the lower support frame 33 are respectively provided with an avoidance groove 1 31 and an avoidance groove 2 37. The avoidance groove 1 31 is located at one end close to the adjacent bracket 1, and the avoidance groove 2 37 is located at one end away from the adjacent bracket 1. When arranging the background curtain wall for filming, the two brackets 1 are respectively erected, the upper support frame 32 and the lower support frame 33 are respectively opened, and the positioning rods 38 of the lower support frame 33 are respectively clamped into the inside of the positioning grooves of the vertically adjacent upper support frame 32. The upper support frame 32, the lower support frame 33 and the bracket 1 form a triangular structure, so that the bracket 1 is more stable when erected, and then the lower ends of the fixing bolts 35 are respectively screwed into the inside of the vertically adjacent threaded seats 2 36, and the threaded seats 1 34 are respectively rotatably connected to the middle part of the upper support frame 32, so that it is convenient to retract and lay flat while aligning the threaded seat 2 36.

[0026] Hanging rod 6: Both ends of the hanging rod 6 are provided with round buckles 7, and the outer side of the middle part of the hanging rod 6 is provided with evenly distributed hooks;

[0027] Lifting mechanism 2: It includes a sprocket 22, a support plate 24, a lifting platform 25 and a lifting rod 27. The upper and lower ends of the bracket 1 are fixedly connected to the support plate 24. The relative inner sides of the two upper and lower adjacent support plates 24 are rotatably connected to the sprocket 22 through a rotating shaft. The two vertically adjacent sprockets 22 are rotatably connected by a chain. The middle part of the chain is provided with a lifting platform 25. The middle part of the front side of the lifting platform 25 is fixedly connected to the lifting rod 27. The circular buckles 7 of the hanging rod 6 are respectively set in the middle of the adjacent lifting rods 27. The lifting mechanism 2 also includes a motor 21, which is fixedly connected to the opposite outer sides of the two support plates 24 at the lower end, and the output shafts of the motor 21 are fixedly connected to the adjacent rotating shafts, and the input end of the motor 21 is electrically connected to the output end of the PLC controller. The lifting mechanism 2 also includes a guide frame 23 and a pulley 26. The front side of the interior of the bracket 1 is welded with a guide frame 23 symmetrically distributed on the left and right. The upper and lower ends of the front side of the lifting platform 25 are rotatably connected to the pulleys 26 symmetrically distributed on the left and right through the rotating shaft, and the outer sides of the pulleys 26 are respectively connected to the opposite outer sides of the pulleys 26. The PLC controller controls the two motors 21 to start, and the output shaft of the motor 21 drives the sprocket 22 at the lower end to rotate, and the chain drives the sprocket 22 at the upper end to rotate, and the lifting platform 25 moves up and down following the chain to realize the lifting and lowering of the lifting platform 25. While the lifting and lowering of the lifting platform 25, the outer side surfaces of the pulley 26 are respectively slidably connected with the rear side surfaces of the adjacent guide frame 23, so that the lifting and lowering of the lifting platform 25 is more stable, and the distance sensor 5 measures the relative distance to the vertically adjacent lifting platform 25 in real time. And feedback is given to the PLC controller. When the lifting platform 25 exceeds the set relative distance, the PLC controller turns off the motor 21 to prevent the lifting platform 25 from colliding with the sprockets 22 on the upper and lower sides, and lowers the lifting platform 25 to a suitable height. Then, the curtain is hung by the hook of the hanging rod 6, and then the circular buckle 7 is respectively mounted on the middle of the two lifting rods 27. The front ends of the lifting rods 27 are all arc-shaped to prevent the circular buckle 7 from detaching. The inner diameter of the circular buckle 7 is larger than the cross-sectional diameter of the lifting rod 27 by 3-5mm, which prevents the curtain from falling off due to the flipping of the hanging rod 6.

[0028] Among them: it also includes a control box 8, which is fixedly connected to the right side of the bracket 1 on the right side. A PLC controller is arranged inside the control box 8, and the input end of the PLC controller is electrically connected to an external power supply.

[0029] The working principle of a quickly replaceable background curtain wall structure for filming provided by the utility model is as follows: when arranging the background curtain wall for filming, two brackets 1 are respectively erected, and the upper support frame 32 and the lower support frame 33 are respectively opened. A part of the running track of the avoidance groove 1 31 coincides with the rotating seat 1, and the avoidance groove 2 37 coincides with the running track of the threaded seat 1 34, so that the upper support frame 32 and the lower support frame 33 can be overlapped when they are retracted, which is convenient for the retraction of the bracket 1, and the positioning rods 38 of the lower support frame 33 are respectively clamped into the interior of the positioning grooves of the vertically adjacent upper support frame 32, and the upper support frame 32, the lower support frame 33 and the bracket 1 form a triangular structure, so that the bracket 1 is more stable when it is erected, and then the lower ends of the fixing bolts 35 are respectively screwed into the interiors of the vertically adjacent threaded seats 2 36, and the threaded seats 1 34 are respectively rotatably connected to the middle part of the upper support frame 32, so that the threaded seats 2 36 that are easy to align while being retracted and laid flat are convenient for alignment. After the bracket 1 is stable, the two motors 21 and the distance sensor 5 are respectively electrically connected to the PLC controller Then, the PLC controller controls the two motors 21 to start, the output shaft of the motor 21 drives the sprocket 22 at the lower end to rotate, and the chain drives the sprocket 22 at the upper end to rotate, and the lifting platform 25 moves up and down following the chain to realize the lifting and lowering of the lifting platform 25. While the lifting and lowering of the lifting platform 25, the outer side surfaces of the pulley 26 are respectively slidably connected with the rear side surfaces of the adjacent guide frame 23, so that the lifting and lowering of the lifting platform 25 is more stable, and the distance sensor 5 measures the relative distance to the vertically adjacent lifting platform 25 in real time and feeds back to the PLC Controller, when the lifting platform 25 exceeds the set relative distance, the PLC controller turns off the motor 21 to prevent the lifting platform 25 from colliding with the sprockets 22 on the upper and lower sides, and lowers the lifting platform 25 to a suitable height, and then hangs the curtain through the hook of the hanging rod 6, and then the circular buckle 7 is respectively set on the middle of the two lifting rods 27. The front ends of the lifting rods 27 are all arc-shaped to prevent the circular buckle 7 from detaching. The inner diameter of the circular buckle 7 is larger than the cross-sectional diameter of the lifting rod 27 by 3-5mm, which prevents the hanging rod 6 from flipping over and causing the curtain to fall off.

[0030] It is worth noting that the PLC controller disclosed in the above embodiment can use the FX3SA-30MR-CM controller, the motor 21 can use the TH15 AC synchronous reduction motor, the distance sensor 5 can use the XKC-KL200 distance sensor, and the PLC controller controls the motor 21 and the distance sensor 5 using methods commonly used in the prior art.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rapidly replaceable background curtain wall structure for filming, characterized in that: It comprises a bracket (1), a hanging rod (6) and a lifting mechanism (2); Brackets (1): There are two of them, and support mechanisms (3) are provided on both the left and right sides of the lower end of the brackets (1); The hanging rod (6) is provided with round buckles (7) at both ends, and evenly distributed hooks are provided on the outer side of the middle part of the hanging rod (6); The lifting mechanism (2) comprises a sprocket (22), a support plate (24), a lifting platform (25) and a lifting rod (27). The upper and lower ends of the bracket (1) are fixedly connected to the support plate (24). The inner sides of two upper and lower adjacent support plates (24) are rotatably connected to the sprocket (22) via a rotating shaft. Two vertically adjacent sprockets (22) are rotatably connected via a chain. The middle of the chain is provided with a lifting platform (25). The middle of the front side of the lifting platform (25) is fixedly connected to the lifting rod (27). The circular buckles (7) of the hanging rod (6) are respectively sleeved on the middle of the adjacent lifting rods (27).

2. The quickly replaceable background curtain wall structure for filming according to claim 1, characterized in that: It also comprises a control box (8), wherein the control box (8) is fixedly connected to the right side of the right bracket (1), a PLC controller is arranged inside the control box (8), and an input end of the PLC controller is electrically connected to an external power supply.

3. The quickly replaceable background curtain wall structure for filming according to claim 2, characterized in that: The lifting mechanism (2) further comprises a motor (21), wherein the motor (21) is respectively fixedly connected to the opposite outer side surfaces of the two support plates (24) at the lower end, the output shaft of the motor (21) is respectively fixedly connected to the adjacent rotating shafts, and the input end of the motor (21) is electrically connected to the output end of the PLC controller.

4. The quickly replaceable background curtain wall structure for filming according to claim 1, characterized in that: The lifting mechanism (2) further comprises a guide frame (23) and a pulley (26); the front side of the interior of the bracket (1) is welded with a guide frame (23) which is symmetrically distributed on the left and right; the upper and lower ends of the front side of the lifting platform (25) are rotatably connected to pulleys (26) which are symmetrically distributed on the left and right through a rotating shaft; and the outer side surfaces of the pulleys (26) are respectively slidably connected to the rear side surfaces of adjacent guide frames (23).

5. The quickly replaceable background curtain wall structure for filming according to claim 2, characterized in that: The lower end of the bracket (1) is fixedly connected to a mounting plate (4), and the upper end of the mounting plate (4) is provided with a distance sensor (5). The distance sensor (5) corresponds to the upper and lower positions of the lifting platform (25) at the upper end, respectively, and the distance sensor (5) is bidirectionally electrically connected to the PLC controller.

6. The quickly replaceable background curtain wall structure for filming according to claim 1, characterized in that: The support mechanism (3) comprises an upper support frame (32), a lower support frame (33) and a positioning rod (38); the left and right sides of the lower end of the support (1) are rotatably connected to the lower support frame (33) which is symmetrically distributed front and back through a rotating seat one; the left and right sides of the lower end of the support (1) are rotatably connected to the upper support frame (32) which is symmetrically distributed front and back through a rotating seat two; one end of the upper support frame (32) away from the support (1) is fixedly connected to the positioning rod (38); one end of the lower support frame (33) away from the support (1) is provided with a positioning groove; the positioning rod (38) is respectively clamped in the interior of the positioning groove of the vertically adjacent lower support frame (33).

7. The quickly replaceable background curtain wall structure for filming according to claim 6, characterized in that: The support mechanism (3) further comprises a threaded seat 1 (34), a fixing bolt (35) and a threaded seat 2 (36); the middle portion of the upper support frame (32) is rotatably connected to the threaded seat 1 (34); the middle portion of the threaded seat 1 (34) is threadedly connected to the fixing bolt (35); the middle portion of the bottom wall of the lower support frame (33) is fixedly connected to the threaded seat 2 (36); the lower ends of the fixing bolts (35) are respectively threadedly connected to the inside of the vertically adjacent threaded seat 2 (36).

8. The quickly replaceable background curtain wall structure for filming according to claim 6, characterized in that: The support mechanism (3) further comprises an avoidance groove 1 (31) and an avoidance groove 2 (37); the side surfaces of the lower support frame (33) are respectively provided with the avoidance groove 1 (31) and the avoidance groove 2 (37); the avoidance groove 1 (31) is located at one end close to the adjacent support frame (1), and the avoidance groove 2 (37) is located at one end away from the adjacent support frame (1).

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