Supporting equipment for lifting folding screen

Abstract

The utility model relates to the technical field of LED creative display, and discloses a supporting device for lifting a folding screen, which comprises a trailer and four supporting leg structures embedded in two sides of the trailer, the upper end of the trailer is provided with a group of position driving mechanisms, the upper end of each position driving mechanism is provided with a rotating mechanism, and the lower end of each position driving mechanism is provided with a lifting mechanism. A servo electric push rod is mounted at the upper end of the rotating mechanism; the position driving mechanism comprises a fixing frame, and a transverse lead screw and a transverse guide rod are installed at the front end and the rear end of the inner side of the fixing frame correspondingly. The lifting folding screen can be folded or unfolded in the vertical direction through the two servo electric push rods, the lifting folding screen can be folded or unfolded in the front, back, left and right directions in the plane through the position driving mechanism, and the angle of the lifting folding screen in the vertical direction can be adjusted through the rotating mechanism. Therefore, the lifting folding screen is convenient to store or unfold, rapid storage or unfolding of the lifting folding screen is achieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of LED creative display, in particular to a supporting device for a lifting and folding screen. Background Art

[0002] Driven by changes in market demand and policies, the market demand for mobile LED screens is increasing, and they are widely used in various fields, such as outdoor commercial advertising, entertainment activities, warnings, etc. When LED screens are used for commercial advertising, such as in shopping malls, stations, airports, theaters and other places with large crowds, commercial advertisements are played; when LED screens are used in entertainment venues, such as outdoor performances, concerts, stadiums, etc., the atmosphere and viewing effect are enhanced. When LED screens are used for warnings, such as text and image warnings at stations, airports, and intersections, in order to facilitate movement, large mobile LED screens usually adopt a folding structure and are transported by trailers.

[0003] A Chinese patent discloses a vehicle-mounted mobile foldable full-color LED advertising screen (authorization announcement number CN208806022U). The patented technology cooperates with the connecting hinges through the folding mechanism, so that the LED screen body can be divided into four parts after folding, which is convenient for placement. When not in use, the LED screen body is laid flat inside the car to prevent the LED screen body from being exposed to moisture and dust in the external environment; the stabilizing mechanism can increase the stability of the installed first mounting frame and the second mounting frame, thereby increasing the safety factor; the clamping mechanism can avoid gaps when assembling the various parts of the LED screen body, and it is flexible and will not damage the mounting frame and the LED screen body, but it cannot be folded quickly, which makes it inconvenient to move. Utility Model Content

[0004] The purpose of the utility model is to provide a supporting device for a lifting folding screen to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A supporting device for lifting a folding screen comprises a trailer and four leg structures embedded and installed on both sides of the trailer, wherein a group of position driving mechanisms are installed on the upper end of the trailer, a rotating mechanism is installed on the upper end of each of the position driving mechanisms, and a servo electric push rod is installed on the upper end of the rotating mechanism; the position driving mechanism comprises a fixed frame, a transverse screw rod and a transverse guide rod are installed on the front and rear ends of the inner side of the fixed frame respectively, and a group of vertical guide sleeves and a vertical nut pair are respectively arranged on the left and right sides of the lower end of the fixed frame, a group of the vertical guide sleeves are slidably connected with the vertical guide rods on the inner sides, a group of the vertical nut pairs are meshedly connected with the vertical screw rods on the inner sides, a vertical drive motor is installed on the front end of the vertical screw rod, a group of transverse nut pairs are meshedly connected with the outer side of the transverse screw rod, and a transverse drive motor is installed at one end of the transverse screw rod, a group of transverse guide sleeves are slidably connected with the outer side of the transverse guide rod, and a mounting plate is installed on the upper ends of a group of the transverse guide sleeves and the transverse nut pairs.

[0007] As a further solution of the utility model: the vertical guide rod and the vertical drive motor are both installed at the upper end of the trailer, and the rotating mechanism is installed at the upper end of the mounting plate.

[0008] As a further solution of the utility model: the rotating mechanism includes a gear box, and a driving gear and a driven gear that are meshed and connected to each other inside the gear box, the upper end of the driving gear is fixedly connected to a rotating motor, the inner side of the driven gear is penetrated and fixedly connected with a rotating shaft, the outer side of the rotating shaft is located at the upper and lower ends of the driven gear, and a first bearing seat and a second bearing seat containing bearings inside are respectively installed, and a flange is fixedly connected to the top end of the rotating shaft, and the flange is fixedly connected to the servo electric push rod.

[0009] As a further solution of the utility model: the rotating motor is installed at the upper end of the outer side of the gear box, the upper end of the rotating shaft passes through the upper end of the gear box, and the first bearing seat and the second bearing seat are respectively installed at the upper and lower ends of the inner side of the gear box.

[0010] As a further solution of the utility model: the support leg structure includes an outer sleeve and an inner slide cylinder slidably connected to one end of the inner side of the outer sleeve, an inner hydraulic cylinder is installed between the inner slide cylinder and the outer sleeve, an external hydraulic cylinder is installed in the vertical direction at one end of the inner slide cylinder, a cushion block is rotatably connected to the lower end of the external hydraulic cylinder, an end of the outer sleeve away from the external hydraulic cylinder is fixedly connected to a connecting shaft, a transmission pulley group and a limiting bearing seat containing bearings are sequentially arranged on the outer side of the connecting shaft from bottom to top, and a transmission motor is installed on the side of the lower end of the transmission pulley group away from the connecting shaft.

[0011] As a further solution of the utility model: the outer sleeve is embedded in the inner side of both ends of the trailer, and the limit bearing seat and the transmission motor are fixedly installed inside the trailer.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can store or unfold the lifting folding screen in the vertical direction through two servo electric push rods, can store or unfold the lifting folding screen in the front, back, left and right directions in the plane through the position driving mechanism, and can adjust the angle of the lifting folding screen in the vertical direction through the rotating mechanism, so as to facilitate the storage or unfolding, thereby realizing the rapid storage or unfolding of the lifting folding screen, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a supporting device for lifting a folding screen;

[0015] Figure 2 It is a structural schematic diagram of a position driving mechanism in a supporting device for lifting a folding screen;

[0016] Figure 3 It is a partial cross-sectional structural schematic diagram of a rotating mechanism in a supporting device for lifting a folding screen;

[0017] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a leg structure in a supporting device for lifting and folding a screen.

[0018] In the figure: 1. trailer; 2. outrigger structure; 21. external hydraulic cylinder; 22. pad; 23. inner slide; 24. internal hydraulic cylinder; 25. outer sleeve; 26. limit bearing seat; 27. transmission pulley group; 28. transmission motor; 29. ​​connecting shaft; 3. position driving mechanism; 31. fixed frame; 32. vertical guide rod; 33. vertical guide sleeve; 34. horizontal driving motor; 35. horizontal guide rod; 36. horizontal screw rod; 37. horizontal nut pair; 38. mounting plate; 39. vertical screw rod; 310. vertical nut pair; 311. vertical driving motor; 312. horizontal guide sleeve; 4. servo electric push rod; 5. rotating mechanism; 51. gear box; 52. rotating motor; 53. flange; 54. first bearing seat; 55. driven gear; 56. second bearing seat; 57. rotating shaft; 58. driving gear. DETAILED DESCRIPTION

[0019] See also Figures 1 to 4In an embodiment of the utility model, a supporting device for a lifting folding screen comprises a trailer 1 and four leg structures 2 embedded and installed on both sides of the trailer 1. A group of position driving mechanisms 3 are installed on the upper end of the trailer 1. A rotating mechanism 5 is installed on the upper end of each position driving mechanism 3. A servo electric push rod 4 is installed on the upper end of the rotating mechanism 5. The lifting folding screen is installed on the two servo electric push rods 4. When the two servo electric push rods 4 are retracted at the same time, the lifting folding screen can be stored in the vertical direction; conversely, when the two servo electric push rods 4 are extended at the same time, the lifting folding screen can be unfolded in the vertical direction.

[0020] exist Figure 1 and Figure 2 In the embodiment, the position driving mechanism 3 includes a fixed frame 31, and the front and rear ends of the inner side of the fixed frame 31 are respectively installed with a transverse screw rod 36 and a transverse guide rod 35, and a group of vertical guide sleeves 33 and a vertical nut pair 310 are respectively arranged on the left and right sides of the lower end of the fixed frame 31, the inner side of a group of vertical guide sleeves 33 is slidably connected with the vertical guide rod 32, the inner side of a group of vertical nut pairs 310 is meshedly connected with a vertical screw rod 39, the front end of the vertical screw rod 39 is installed with a vertical driving motor 311, the outer side of the transverse screw rod 36 is meshedly connected with a group of transverse nut pairs 37, and a transverse driving motor 34 is installed at one end of the transverse screw rod 36, the outer side of the transverse guide rod 35 is slidably connected with a group of transverse guide sleeves 312, and the upper ends of a group of transverse guide sleeves 312 and the transverse nut pairs 37 are commonly installed with a mounting plate 38, through the vertical driving motor 31 1 drives the vertical screw rod 39 to rotate, so that the fixing frame 31, the transverse guide rod 35, the transverse screw rod 36 and the mounting plate 38 move forward and backward together along the direction of the vertical guide rod 32; the transverse drive motor 34 drives the transverse screw rod 36 to rotate, so that the mounting plate 38 moves left and right along the direction of the transverse guide rod 35. The vertical guide rod 32 and the vertical drive motor 311 are both installed at the upper end of the trailer 1, so that the vertical drive motor 311 drives the vertical screw rod 39 to rotate on the inner side of the vertical nut pair 310, and the vertical guide sleeve 33 slides along the vertical guide rod 32. The rotating mechanism 5 is installed at the upper end of the mounting plate 38, so that the rotating mechanism 5 can move in the front, back, left and right directions together with the mounting plate 38, so that the lifting and folding screen installed on the two servo electric push rods 4 can be stored or unfolded in the front, back, left and right directions.

[0021] exist Figure 1 and Figure 3In the embodiment, the rotating mechanism 5 includes a gear box 51, and a driving gear 58 and a driven gear 55 that are meshed and connected to each other inside the gear box 51. The upper end of the driving gear 58 is fixedly connected to a rotating motor 52. A rotating shaft 57 is fixedly connected to the inner side of the driven gear 55. The outer side of the rotating shaft 57 is located at the upper and lower ends of the driven gear 55, and a first bearing seat 54 and a second bearing seat 56 containing bearings are respectively installed thereon. A flange 53 is fixedly connected to the top of the rotating shaft 57. The flange 53 is fixedly connected to the servo electric push rod 4. The driving gear 58 is driven to rotate by the rotating motor 52, and the driving gear 58 and the driven gear 58 are meshed and connected to each other. The wheel 55 is meshed for transmission, thereby driving the driven gear 55, the rotating shaft 57 and the flange 53 to rotate with the first bearing seat 54 and the second bearing seat 56 as the center, thereby rotating the servo electric push rod 4. When the two servo electric push rods 4 rotate in opposite directions, the lifting and folding screens installed on the two servo electric push rods 4 can be folded up. The rotating motor 52 is installed at the upper end of the outer side of the gear box 51, and the upper end of the rotating shaft 57 passes through the upper end of the gear box 51. The first bearing seat 54 and the second bearing seat 56 are respectively installed at the upper and lower ends of the inner side of the gear box 51, so that the rotating shaft 57 can rotate smoothly.

[0022] exist Figure 1 and Figure 4 In the embodiment, the leg structure 2 includes an outer sleeve 25 and an inner slide 23 slidably connected to one end of the inner side of the outer sleeve 25, an inner hydraulic cylinder 24 is installed between the inner slide 23 and the outer sleeve 25, an external hydraulic cylinder 21 is installed at one end of the inner slide 23 in the vertical direction, and a cushion block 22 is rotatably connected to the lower end of the external hydraulic cylinder 21, and an end of the outer sleeve 25 away from the external hydraulic cylinder 21 is fixedly connected to a connecting shaft 29, and a transmission pulley group 27 and a limit bearing seat 26 containing a bearing inside are sequentially arranged on the outer side of the connecting shaft 29 from bottom to top, and a transmission motor 28 is installed on the side of the lower end of the transmission pulley group 27 away from the connecting shaft 29, and the transmission motor 28 drives the transmission pulley group 27 to rotate, and the transmission pulley group 27 drives the connecting shaft 29 to rotate with the limit bearing seat 26 as the center of the circle. , so that the outer sleeve 25, the inner slide 23 and the external hydraulic cylinder 21 rotate together, the length of the inner slide 23 in the outer sleeve 25 can be adjusted by the extension and contraction of the internal hydraulic cylinder 24, and the height of the cushion block 22 can be adjusted in the vertical direction by the extension and contraction of the external hydraulic cylinder 21, so that the leg structure 2 can be opened, and the trailer 1 can be supported by the four leg structures 2, so that the trailer 1 remains stable, and it is convenient to watch the lifting and folding screen installed on the two servo electric push rods 4; similarly, the leg structure 2 can be stored on both sides of the trailer 1, the outer sleeve 25 is embedded in the inner side of the two ends of the trailer 1, and the limit bearing seat 26 and the transmission motor 28 are fixedly installed inside the trailer 1, so that the transmission motor 28 can drive the transmission pulley group 27 and the connecting shaft 29 to rotate smoothly.

[0023] The working principle of the utility model is as follows: first, the required lifting and folding screen is installed on two servo electric push rods 4, and then the trailer 1 is installed on the external tractor, and the trailer 1 is moved to the required position by the tractor; then, the transmission motor 28 is started, and the transmission motor 28 drives the transmission pulley set 27 to rotate, and the transmission pulley set 27 drives the connecting shaft 29 to rotate with the limit bearing seat 26 as the center of the circle, so that the outer sleeve 25, the inner slide 23 and the external hydraulic cylinder 21 rotate outward; then the internal hydraulic cylinder 24 is started, and the internal hydraulic cylinder 24 is extended, so that the inner slide 23 moves outward in the outer sleeve 25; then the external hydraulic cylinder 21 is started, and the external hydraulic cylinder 21 is extended in the vertical direction to support the pad 22 on the ground, so that the trailer 1 is supported by the four leg structures 2, so that the trailer 1 remains stable;

[0024] Then, the servo electric push rod 4 is started, the servo electric push rod 4 is extended, and the lifting and folding screen is opened in the vertical direction;

[0025] Next, the vertical drive motor 311 is started, and the vertical drive motor 311 drives the vertical screw rod 39 to rotate, so that the fixing frame 31, the horizontal guide rod 35, the horizontal screw rod 36 and the mounting plate 38 move forward and backward along the direction of the vertical guide rod 32, thereby opening the lifting folding screen in the horizontal direction;

[0026] Next, the rotating motor 52 is started, and the rotating motor 52 drives the driving gear 58 to rotate, and the driving gear 58 is meshed with the driven gear 55 for transmission, thereby driving the driven gear 55, the rotating shaft 57 and the flange 53 to rotate with the first bearing seat 54 and the second bearing seat 56 as the center of the circle, thereby rotating the servo electric push rod 4, and adjusting the lifting folding screen installed on the two servo electric push rods 4 to a suitable angle;

[0027] Then, start the transverse drive motor 34, which drives the transverse screw rod 36 to rotate, so that the mounting plate 38 moves left and right along the direction of the transverse guide rod 35, and then moves the unfolded lifting and folding screen to a suitable angle, so that the video can be played through the lifting and folding screen.

[0028] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A supporting device for lifting a folding screen, comprising a trailer (1) and four leg structures (2) embedded and installed on both sides of the trailer (1), characterized in that: A group of position drive mechanisms (3) are installed at the upper end of the trailer (1), and a rotating mechanism (5) is installed at the upper end of each position drive mechanism (3), and a servo electric push rod (4) is installed at the upper end of the rotating mechanism (5); the position drive mechanism (3) comprises a fixed frame (31), and a transverse screw rod (36) and a transverse guide rod (35) are installed at the front and rear ends of the inner side of the fixed frame (31), and a group of vertical guide sleeves (33) and vertical nut pairs (310) are respectively arranged on the left and right sides of the lower end of the fixed frame (31), and the inner sides of the group of vertical guide sleeves (33) slide together. A vertical guide rod (32) is movably connected to the horizontal guide rod (35); a vertical screw rod (39) is meshedly connected to the inner side of a group of vertical nut pairs (310); a vertical drive motor (311) is installed at the front end of the vertical screw rod (39); a group of horizontal nut pairs (37) is meshedly connected to the outer side of the horizontal screw rod (36); a horizontal drive motor (34) is installed at one end of the horizontal screw rod (36); a group of horizontal guide sleeves (312) are slidably connected to the outer side of the horizontal guide rod (35); a mounting plate (38) is installed on the upper ends of a group of the horizontal guide sleeves (312) and the horizontal nut pairs (37).

2. A supporting device for a lifting folding screen according to claim 1, characterized in that: The vertical guide rod (32) and the vertical drive motor (311) are both mounted on the upper end of the trailer (1), and the rotating mechanism (5) is mounted on the upper end of the mounting plate (38).

3. The supporting device for lifting and folding screen according to claim 1, characterized in that: The rotating mechanism (5) comprises a gear box (51), and a driving gear (58) and a driven gear (55) which are meshed and connected to each other inside the gear box (51), the upper end of the driving gear (58) is fixedly connected to a rotating motor (52), the inner side of the driven gear (55) is penetrated and fixedly connected to a rotating shaft (57), the outer side of the rotating shaft (57) is located at the upper and lower ends of the driven gear (55), and a first bearing seat (54) and a second bearing seat (56) containing bearings inside are respectively installed, and a flange (53) is fixedly connected to the top end of the rotating shaft (57), and the flange (53) is fixedly connected to the servo electric push rod (4).

4. The supporting device for lifting and folding screen according to claim 3, characterized in that: The rotating motor (52) is mounted on the upper end of the outer side of the gear box (51), the upper end of the rotating shaft (57) passes through the upper end of the gear box (51), and the first bearing seat (54) and the second bearing seat (56) are respectively mounted on the upper and lower ends of the inner side of the gear box (51).

5. The supporting device for lifting and folding screen according to claim 1, characterized in that: The leg structure (2) comprises an outer sleeve (25) and an inner slide (23) slidably connected to one end of the inner side of the outer sleeve (25); an internal hydraulic cylinder (24) is installed between the inner slide (23) and the outer sleeve (25); an external hydraulic cylinder (21) is installed at one end of the inner slide in a vertical direction; a cushion block (22) is rotatably connected to the lower end of the external hydraulic cylinder (21); an end of the outer sleeve (25) away from the end of the external hydraulic cylinder (21) is fixedly connected to a connecting shaft (29); a transmission pulley group (27) and a limit bearing seat (26) containing a bearing are arranged on the outer side of the connecting shaft (29) in sequence from bottom to top; a transmission motor (28) is installed on the side of the lower end of the transmission pulley group (27) away from the connecting shaft (29).

6. The supporting device for lifting and folding screen according to claim 5, characterized in that: The outer sleeve (25) is embedded in the inner side of both ends of the trailer (1), and the limit bearing seat (26) and the transmission motor (28) are both fixedly installed inside the trailer (1).

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