Multilayer matrix type mechanical screen

Abstract

The invention relates to the technical field of mechanical screens, and discloses a multi-layer matrix type mechanical screen which comprises a first frame and a second frame which are stacked, a first screen is installed in the first frame, a second screen is installed in the second frame, and a base used for keeping balance is installed below the first frame. A rotating adjusting assembly is connected between the first frame and the second frame and is composed of a fixing base fixedly connected to the upper end of the first frame and a rotating piece assembled and connected to the lower end of the second frame, the fixing base and the rotating piece are connected in a matched mode, and an assembling groove is formed in the edge of the end, facing the rotating piece, of the fixing base in an embedded mode. A plurality of sets of mounting holes are formed in the rotating piece in a penetrating mode, inserting rods are fixedly connected to the positions, opposite to the assembling grooves, of the rotating piece, and the inserting rods are correspondingly matched with the assembling grooves. The display rack is stable in arrangement and very convenient to adjust, can be stacked in multiple layers according to needs, and can cope with display in multiple directions.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical screens, and in particular to a multi-layer matrix mechanical screen. Background Art

[0002] When using display screens for presentations, in order to cope with people coming from multiple directions, there are often multi-layer mechanical screens that can display in multiple directions.

[0003] Chinese patent publication number: CN204348257U, discloses a multi-layer multi-faceted rotating screen structure, which relates to the field of display screens. The structure includes a base, a support shaft is vertically mounted on the base, and multiple multi-faceted rotating screen structures are sleeved on the support shaft from bottom to top.

[0004] In this solution, when multiple screens are stacked together, a sufficiently long support shaft is required, and all screens are mounted on the support shaft. This is not convenient for different application scenarios. Depending on the number of screens that need to be stacked, support shafts of different lengths are required. Summary of the Invention

[0005] The object of the present invention is to provide a multi-layer matrix mechanical screen to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A multi-layer matrix mechanical screen includes a stacked first frame and a second frame, a first screen is installed in the first frame, a second screen is installed in the second frame, a base for maintaining balance is installed below the first frame, and a rotation adjustment component for adjusting the relative angle between the second frame and the first frame is connected between the first frame and the second frame. The rotation adjustment component consists of a fixed base fixedly connected to the upper end of the first frame and a rotating member assembled and connected to the lower end of the second frame. The fixed base and the rotating member are cooperatively connected, and the fixed base is embedded with an assembly groove toward the end edge of the rotating member. The rotating member is provided with multiple groups of mounting holes, and an insertion rod is fixedly connected to the rotating member at a position opposite to the assembly groove. The insertion rod is correspondingly adapted to the assembly groove. When the insertion rod is engaged with the assembly groove, the axial relative rotation of the rotating member and the fixed base is restricted. When the insertion rod is disengaged from the assembly groove, the rotation restriction between the rotating member and the fixed base is released.

[0007] As a further solution of the present invention: the base includes a bracket, the bottom of the bracket is inlaid with a rubber pad, two groups of brackets are arranged in parallel on both sides of the lower end of the first frame, the upper end of the base is embedded with a groove, the lower end of the first frame is movably engaged in the groove, and a connecting plate is fixedly connected between the two groups of brackets, and a plurality of threaded holes are set through the lower end of the connecting plate.

[0008] As a further solution of the present invention: the connecting plate and the embedding groove are positioned opposite to each other, the upper end of the connecting plate is flush with the bottom of the embedding groove, and a reinforcing rib is installed between the side of the bracket and the lower end of the connecting plate.

[0009] As a further solution of the present invention: the assembly groove includes an annular groove embedded in the edge of the end of the fixing seat with the axis of the fixing seat as the center of the circle, and a plurality of blind holes are embedded in the annular groove. The blind holes are distributed in an annular array with the axis of the fixing seat as the origin, and separating wedges are fixedly connected in the annular grooves between adjacent blind holes. The sides of the separating wedges facing the annular grooves are all inclined surfaces, and the insertion rods and the blind holes are correspondingly arranged.

[0010] As a further solution of the present invention: a sliding cylinder groove is embedded in the middle of the fixed seat, and a stop liner is provided at the inwardly contracted edge of the upper opening of the sliding cylinder groove. The stop liner and the sliding cylinder groove are concentrically arranged, and the diameter of the stop liner is smaller than the diameter of the sliding cylinder groove. A cylinder is fixedly connected to the end center of the rotating member toward the fixed seat, and the cylinder and the stop liner are slidably fitted. A sliding ring is fixedly connected to the outer periphery of the end of the cylinder extending into the sliding cylinder groove, and the sliding ring and the sliding cylinder groove are slidably fitted.

[0011] As a further solution of the present invention: an elastic stopper is movably embedded in the inner wall of the sliding cylinder groove; when the sliding ring moves from the bottom of the sliding cylinder groove to the side of the stop liner and contacts the elastic stopper, the elastic stopper is squeezed into the inner wall of the sliding cylinder groove; when the sliding ring moves from the side of the stop liner to the bottom of the sliding cylinder groove and contacts the elastic stopper, the surface of the elastic stopper and the surface of the sliding ring are movably fitted together.

[0012] As a further solution of the present invention: the elastic stop block is rotatably connected to the inner wall of the sliding cylinder groove through a rotating shaft, the rotating shaft is set on the end of the elastic stop block away from the stop liner, and a torsion spring is connected between the rotating shaft and the sliding cylinder groove. The torsion spring acts to rotate the end of the elastic stop block away from the rotating shaft into the sliding cylinder groove.

[0013] As a further solution of the present invention: the end of the elastic stopper close to the stop liner is set as a flat surface, and the side surface of the elastic stopper facing the sliding cylinder groove is set as an arc surface.

[0014] As a further solution of the present invention: strip grooves are symmetrically provided on both sides of the cylinder, and the strip grooves are provided along the axial extension direction of the cylinder. A sliding accessory is provided in the cylinder for sliding cooperation, and the end of the sliding accessory away from the cylinder is slidably adapted to the inner wall of the sliding cylinder groove.

[0015] As a further solution of the present invention: the sliding accessory includes a sliding gasket that slides in the sliding cylinder groove, a sliding column is fixedly connected to the center of the sliding gasket, the sliding column is slidingly connected in the cylinder, and limiting protrusions are symmetrically connected on both sides of the end of the sliding column away from the sliding gasket, and the limiting protrusions are slidingly adapted to the strip groove.

[0016] Compared with the prior art, the beneficial effect of the present invention is that when in use, multiple first frames and second frames can be stacked in sequence as needed. The first frame can be stably placed through the setting of the base, and the second frame can adjust the relative deflection angle with the first frame through the cooperation between the rotating member and the fixed seat. In this way, the first screen and the second screen on the first frame and the second frame can face different directions. During the display, they can face audiences in different directions, which can be convenient for display, and the first frame and the second frame can be stably placed. When adjusting, it is only necessary to lift the second frame and the rotating member connected to its lower end upward away from the fixed seat. At this time, the insertion rod and the assembly slot can be disengaged. In this state, the rotating member and the assembly slot can be relatively rotated to adjust the relative deflection angle of the first frame and the second frame. After the adjustment is completed, the second frame is lowered, and the insertion rod on the rotating member falls and enters the assembly slot, thereby forming a limited fit. The deflection angle of the first frame and the second frame can be fixed, stably placed, and adjusted very conveniently. As needed, they can be stacked in multiple layers to cope with displays in multiple directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the base and the first frame in the present invention.

[0019] Figure 3 This is a schematic structural diagram of the first frame in the present invention.

[0020] Figure 4 It is a structural schematic diagram of the fixing seat in the present invention.

[0021] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0022] Figure 6 It is a structural schematic diagram of the elastic stopper in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the rotating part in the present invention.

[0024] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of area B in the middle.

[0025] Figure 9 It is a structural schematic diagram of the sliding attachment in the present invention.

[0026] In the figure: 1-base, 11-bracket, 12-embedded groove, 13-connecting plate, 14-reinforcement rib, 2-first frame, 21-first screen, 3-second frame, 31-second screen, 4-rotation adjustment component, 41-fixed seat, 42-rotating member, 4201-insertion rod, 4202-mounting hole, 4203-cylinder, 4204-sliding collar, 4205-strip groove, 43-assembly groove, 4301-annular groove, 4302-separating wedge, 4303-blind hole, 44-sliding cylinder groove, 45-stop lining, 46-elastic stopper, 4601-arc surface, 4602-plane, 4603-rotating shaft, 47-sliding attachment, 4701-sliding gasket, 4702-sliding column, 4703-limiting protrusion. DETAILED DESCRIPTION

[0027] See also Figure 1-Figure 7 In an embodiment of the present invention, a multi-layer matrix mechanical screen includes a stacked first frame 2 and a second frame 3, wherein a first screen 21 is installed in the first frame 2, and a second screen 31 is installed in the second frame 3. As needed, multiple first frames 2 and second frames 3 can be stacked in sequence. A base 1 for maintaining balance is installed below the first frame 2. A rotation adjustment component 4 for adjusting the relative angle between the second frame 3 and the first frame 2 is connected between the first frame 2 and the second frame 3. The rotation adjustment component 4 consists of a fixed seat 41 fixedly connected to the upper end of the first frame 2 and a rotating member 4 assembled and connected to the lower end of the second frame 3. 2, the fixed seat 41 and the rotating member 42 are cooperatively connected, the fixed seat 41 is embedded with a mounting groove 43 at the end edge facing the rotating member 42, and a plurality of mounting holes 4202 are provided on the rotating member 42, and an insertion rod 4201 is fixedly connected with the rotating member 42 at a position opposite to the mounting groove 43, and the insertion rod 4201 is correspondingly adapted to the mounting groove 43. When the insertion rod 4201 and the mounting groove 43 are matched, the axial relative rotation of the rotating member 42 and the fixed seat 41 is restricted. When the insertion rod 4201 and the mounting groove 43 are disengaged, the rotation restriction between the rotating member 42 and the fixed seat 41 is released.

[0028] When in use, as needed, multiple first frames 2 and second frames 3 can be stacked in sequence. The first frame 2 can be stably placed through the setting of the base 1, and the second frame 3 can adjust the relative deflection angle with the first frame 2 through the cooperation between the rotating member 42 and the fixing seat 41. In this way, the first screen 21 and the second screen 31 on the first frame 2 and the second frame 3 can face different directions. During the display, they can face audiences in different directions, which can facilitate the display. The first frame 2 and the second frame 3 can be stably placed. When adjusting, it is only necessary to connect the second frame 3 and its lower end to install it. The rotating member 42 is lifted up together and away from the fixed seat 41, and the insertion rod 4201 and the assembly slot 43 can be disengaged at this time. In this state, the rotating member 42 and the assembly slot 43 can be rotated relative to each other to adjust the relative angle of the first frame 2 and the second frame 3. After the adjustment, the second frame 3 is lowered, and the insertion rod 4201 on the rotating member 42 falls and enters the assembly slot 43, thereby forming a limited fit. The angle of the first frame 2 and the second frame 3 can be fixed, the placement is stable, and the adjustment is also very convenient. According to needs, they can be stacked in multiple layers to cope with display in multiple directions.

[0029] The base 1 includes a bracket 11, the bottom of which is inlaid with a rubber pad. Two sets of brackets 11 are arranged parallel to each other on both sides of the lower end of the first frame 2. A groove 12 is embedded in the upper end of the base 1, and the lower end of the first frame 2 is movably engaged in the groove 12. A connecting plate 13 is fixedly connected between the two sets of brackets 11. The connecting plate 13 and the groove 12 are located opposite each other, and the upper end of the connecting plate 13 is flush with the bottom of the groove 12. Reinforcing ribs 14 are installed between the side edges of the bracket 11 and the lower end of the connecting plate 13. Depending on the number of stacked first frames 2 and second frames 3, brackets 11 of different lengths can be selected to facilitate placement and balance. The lower edge of the first frame 2 can be supported by both the groove 12 and the connecting plate 13. The groove 12 can limit and maintain the stability of the first frame 2. The lower end of the connecting plate 13 can be provided with multiple threaded holes to facilitate the fixed assembly of the bottom of the first frame 2 and the connecting plate 13.

[0030] like Figure 4-Figure 7As shown, the assembly groove 43 includes an annular groove 4301 embedded in the end edge of the fixing seat 41 with the axis of the fixing seat 41 as the center, and a plurality of blind holes 4303 are embedded in the annular groove 4301. The blind holes 4303 are distributed in an annular array with the axis of the fixing seat 41 as the origin. A separating wedge 4302 is fixedly connected in the annular groove 4301 between adjacent blind holes 4303. The side surfaces of the separating wedge 4302 facing the annular groove 4301 are all inclined surfaces, and the insertion rod 4201 and the blind hole 4303 are correspondingly arranged. When the second frame 3 is stably placed above the first frame 2, the insertion rod 4201 is inserted and engaged in the blind hole 4303, so that the second frame 3 cannot deflect relative to the first frame 2. When the angle needs to be adjusted, the insertion rod 4201 can be driven to disengage from the blind hole 4303 by the rotating member 42. When the end of the insertion rod 4201 is free from the obstruction of the edge of the separating wedge 4302, the rotating member 42 and the fixing seat 41 can be rotated relative to each other. When the angle adjustment is completed, the second frame 3 and the rotating member 42 are lowered. When the end of the insertion rod 4201 contacts the side of the separating wedge 4302, it can be easily guided and then inserted into the blind hole 4303, which makes placement convenient and flexible.

[0031] A sliding cylindrical groove 44 is embedded in the middle of the fixed seat 41. A stop liner 45 is provided at the inwardly contracted edge of the upper opening of the sliding cylindrical groove 44. The stop liner 45 and the sliding cylindrical groove 44 are arranged concentrically, and the diameter of the stop liner 45 is smaller than that of the sliding cylindrical groove 44. A cylinder 4203 is fixedly connected to the center of the end of the rotating member 42 facing the fixed seat 41. The cylinder 4203 and the stop liner 45 are slidably adapted. A sliding collar 4204 is fixedly connected to the periphery of the end of the cylinder 4203 extending into the sliding cylindrical groove 44. The sliding fit between the cylinder 4203 and the stop liner 45, and the sliding fit between the sliding collar 4204 and the sliding cylindrical groove 44, allows relative rotation between the rotating member 42 and the fixed seat 41, and also prevents the cylinder 4203 from being pulled out excessively and falling off.

[0032] Furthermore, an elastic stopper 46 is movably embedded in the inner wall of the sliding cylindrical groove 44. When the sliding ring 4204 moves from the bottom of the sliding cylindrical groove 44 to the side of the stop liner 45 and contacts the elastic stopper 46, the elastic stopper 46 is squeezed into the inner wall of the sliding cylindrical groove 44. When the sliding ring 4204 moves from the side of the stop liner 45 to the bottom of the sliding cylindrical groove 44 and contacts the elastic stopper 46, the surface of the elastic stopper 46 and the surface of the sliding ring 4204 are movably fitted together, and the elastic stopper 46 cannot be squeezed into the inner wall of the sliding cylindrical groove 44. In this way, normally, the sliding ring 4204 is located near the bottom of the sliding barrel groove 44. When the relative angle of the second frame 3 and the first frame 2 needs to be adjusted, the second frame 3 and the rotating member 42 can be moved upward. When the cylinder 4203 and the sliding ring 4204 on the rotating member 42 move from bottom to top and pass through the elastic stopper 46, the elastic stopper 46 is squeezed to the inner wall of the sliding barrel groove 44. After continuing to move away from the elastic stopper 46, the elastic stopper 46 pops out again. At this time, even if the second frame 3 and the rotating member 42 are lowered, the elastic stopper 46 can cooperate to support the sliding ring 4204, which is safer when adjusting the angle and more convenient to rotate and adjust the angle. The elastic stopper 46 is rotatably connected to the inner wall of the sliding groove 44 via a rotating shaft 4603. The rotating shaft 4603 is located on the end of the elastic stopper 46 away from the stop liner 45. A torsion spring is connected between the rotating shaft 4603 and the sliding groove 44. The torsion spring acts to rotate the end of the elastic stopper 46 away from the rotating shaft 4603 into the sliding groove 44. Furthermore, the end of the elastic stopper 46 near the stop liner 45 is provided with a flat surface 4602, and the side of the elastic stopper 46 facing the sliding groove 44 is provided with an arcuate surface 4601. When the sliding collar 4204 moves upward from the bottom of the sliding groove 44, it contacts the arcuate surface 4601 and squeezes and rotates the elastic stopper 46 along the arc, embedding it into the inner wall of the sliding groove 44. After passing the elastic stopper 46, the elastic stopper 46 is released under the action of the torsion spring, and the flat surface 4602 serves to cooperate with and support the sliding collar 4204.

[0033] In the above solution, although it can be adjusted flexibly, after the sliding collar 4204 moves close to the stop liner 45, the elastic stopper 46 pops out and becomes difficult to press in again. Figure 4-Figure 9As shown, the cylinder 4203 is symmetrically provided with strip grooves 4205 on both sides, and the strip grooves 4205 are provided along the axis of the cylinder 4203. A sliding attachment 47 is provided in the cylinder 4203 for sliding fit. The end of the sliding attachment 47 away from the cylinder 4203 slides and fits with the inner wall of the sliding cylinder groove 44. This arrangement makes it convenient to lower the second frame 3 and the rotating member 42 after the angle adjustment is completed. By moving the sliding attachment 47 upward, the end of the sliding attachment 47 away from the cylinder 4203 moves to fit the lower surface of the sliding collar 4204. At this time, the end of the sliding attachment 47 away from the cylinder 4203 can squeeze the elastic block 46 into the inner wall of the sliding cylinder groove 44. At this time, by moving the sliding attachment 47 and the sliding collar 4204 downward, the insertion rod 4201 can be aligned with the assembly groove 43 and inserted. This method is simple to use. When the sliding attachment 47 is not manually moved upward, the sliding attachment 47 is located at the bottom of the sliding barrel groove 44 and does not cause any interference. In this solution, the spacing between the elastic stopper 46 and the stop liner 45 is preferably less than the thickness difference between the end of the sliding attachment 47 and the sliding collar 4204. This prevents the end of the sliding attachment 47 and the sliding collar 4204 from passing through the elastic stopper 46.

[0034] The sliding attachment 47 includes a sliding washer 4701 that slides within the sliding cylinder groove 44. A sliding post 4702 is fixedly connected to the center of the sliding washer 4701. The sliding post 4702 is slidably connected to the cylinder 4203. The ends of the sliding posts 4702, away from the sliding washer 4701, are symmetrically connected to limiting protrusions 4703. The limiting protrusions 4703 slide in the strip groove 4205. During use, the sliding post 4702 and the sliding washer 4701 can be moved upward by the limiting protrusions 4703, which is simple to operate, has a fast response speed, and is convenient for maintenance.

Claims

1. A multi-layer matrix mechanical screen, comprising a first frame and a second frame stacked together, wherein a first screen is mounted in the first frame, a second screen is mounted in the second frame, and a base for maintaining balance is mounted below the first frame, characterized in that: A rotation adjustment component for adjusting the relative angle between the second frame and the first frame is connected between the first frame and the second frame. The rotation adjustment component consists of a fixed seat fixedly connected to the upper end of the first frame and a rotating member assembled and connected to the lower end of the second frame. The fixed seat and the rotating member are cooperatively connected. The fixed seat is embedded with an assembly groove toward the end edge of the rotating member. A plurality of mounting holes are provided on the rotating member. An insertion rod is fixedly connected to the rotating member at a position opposite to the assembly groove, and the insertion rod is adapted to the assembly groove.

2. The multi-layer matrix mechanical screen according to claim 1, characterized in that: The base includes a bracket, the bottom of which is inlaid with a rubber pad, two groups of brackets are arranged in parallel on both sides of the lower end of the first frame, the upper end of the base is embedded with a groove, the lower end of the first frame is movably engaged in the groove, and a connecting plate is fixedly connected between the two groups of brackets, and a plurality of threaded holes are set through the lower end of the connecting plate.

3. The multi-layer matrix mechanical screen according to claim 2, characterized in that: The connecting plate and the embedding groove are positioned opposite to each other, the upper end of the connecting plate is flush with the bottom of the embedding groove, and a reinforcing rib is installed between the side of the bracket and the lower end of the connecting plate.

4. The multi-layer matrix mechanical screen according to claim 1, characterized in that: The assembly groove includes an annular groove embedded in the edge of the end of the fixing seat with the axis of the fixing seat as the center of the circle, and a plurality of blind holes are embedded in the annular groove. The blind holes are distributed in an annular array with the axis of the fixing seat as the origin. Separation wedges are fixedly connected in the annular grooves between adjacent blind holes, and the sides of the separation wedges facing the annular grooves are all inclined surfaces. The insertion rods and the blind holes are correspondingly arranged.

5. The multi-layer matrix mechanical screen according to claim 4, characterized in that: A sliding cylinder groove is embedded in the middle of the fixed seat, and a stop liner is provided at the inwardly contracted edge of the upper opening of the sliding cylinder groove. The stop liner and the sliding cylinder groove are concentrically arranged, and the diameter of the stop liner is smaller than the diameter of the sliding cylinder groove. A cylinder is fixedly connected to the center of the end of the rotating member toward the fixed seat, and the cylinder and the stop liner are slidably adapted. A sliding ring is fixedly connected to the periphery of the end of the cylinder extending into the sliding cylinder groove, and the sliding ring and the sliding cylinder groove are slidably adapted.

6. The multi-layer matrix mechanical screen according to claim 5, characterized in that: An elastic stopper is movably embedded in the inner wall of the sliding cylinder groove. When the sliding ring moves from the bottom of the sliding cylinder groove to the side of the stop liner and contacts the elastic stopper, the elastic stopper is squeezed into the inner wall of the sliding cylinder groove. When the sliding ring moves from the side of the stop liner to the bottom of the sliding cylinder groove and contacts the elastic stopper, the surface of the elastic stopper and the surface of the sliding ring are movably fitted together.

7. The multi-layer matrix mechanical screen according to claim 6, characterized in that: The elastic stopper is rotatably connected to the inner wall of the sliding cylinder groove through a rotating shaft. The rotating shaft is set on the end of the elastic stopper away from the stop liner. A torsion spring is connected between the rotating shaft and the sliding cylinder groove. The torsion spring acts to rotate the end of the elastic stopper away from the rotating shaft into the sliding cylinder groove.

8. A multi-layer matrix mechanical screen according to claim 6 or 7, characterized in that: The end of the elastic stopper close to the stop liner is configured as a plane, and the side surface of the elastic stopper facing the inside of the sliding cylinder groove is configured as an arc surface.

9. A multi-layer matrix mechanical screen according to claim 6 or 7, characterized in that: The cylinder is symmetrically provided with strip grooves on both sides, and the strip grooves are provided along the axis extension direction of the cylinder. A sliding attachment is provided in the cylinder for sliding fit, and the end of the sliding attachment away from the cylinder is slidably fitted with the inner wall of the sliding cylinder groove.

10. The multi-layer matrix mechanical screen according to claim 9, characterized in that: The sliding accessory includes a sliding gasket that slides in the sliding cylinder groove, a sliding column is fixedly connected to the center of the sliding gasket, the sliding column is slidingly connected in the cylinder, and limiting protrusions are symmetrically connected on both sides of the end of the sliding column away from the sliding gasket, and the limiting protrusions are slidingly adapted to the strip groove.

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