Rotary education display stand

Abstract

The invention discloses a rotary education display stand, and belongs to the technical field of education display stands, the rotary education display stand comprises a cabinet body, an exhibition stand for fixing a display object is rotatably mounted on the cabinet body, the exhibition stand rotates by taking a vertical axis as a center, a camera is mounted on one side of the exhibition stand on the upper surface of the cabinet body through a bracket, and a clamping assembly is mounted in the middle of the exhibition stand; the exhibition stand is further provided with a horizontal rotating axis, and the exhibition stand can be driven to rotate with the rotating axis as the center so that one side of the exhibition stand can tilt upwards. According to the rotary education display stand provided by the invention, the display stand can rotate around the vertical axis and the horizontal axis at the same time, and after engraving is completed, the camera can shoot display objects, especially some display objects with inner cavities and upper openings, at more angles through cooperation of two rotation modes of the display stand; therefore, the display effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of educational display stands, and in particular discloses a rotating educational display stand. Background Art

[0002] Educational institutions, museums, art galleries, science museums and other places for display and education are all equipped with a large number of display stands. In order to display comprehensively, many of the objects displayed on these display stands can be rotated slowly. In the prior art, for teaching various display objects that pursue details, such as precision equipment, sculptures, etc., students are generally asked to watch around the teacher, which is limited and incomplete. Even if a camera is installed for synchronous playback, it is inconvenient to adjust the camera.

[0003] For example, the patent with announcement number CN118623165B, with announcement date of 2024-10-18, discloses a display device for teaching arts and crafts design, including a base, a mounting plate and a movable extension rod are fixedly connected to the top of the base, a CCD camera is installed at the end of the movable extension rod away from the base, the middle of the mounting plate is rotatably connected to a swivel seat, the top of the swivel seat is fixedly connected to a mounting head, and the mounting head is fixedly connected to a pneumatic locking column; when adjusting the position of the CCD camera, it is only necessary to adjust the corresponding conversion valve to deflate all the pneumatic locking columns on the movable extension rod, and the joints of the movable extension rod can be rotated at will, so that the direction and position of the CCD camera can be adjusted at will. After reaching the appropriate position, adjust the corresponding conversion valve again, and inject high-pressure gas into the pneumatic locking column inside the movable extension rod, so that the joints of the movable extension rod can be immobilized. The overall adjustment is very convenient and flexible.

[0004] The existing display devices including the above-mentioned patents have relatively fixed camera positions or need to be adjusted manually. When the works are displayed by rotating the display stand, it is not convenient to capture the details of the display target from all angles, especially some crafts with inner cavities like cups. The camera cannot or finds it difficult to capture the internal structure of the display target. Summary of the invention

[0005] The purpose of the present invention is to provide a rotating educational display stand capable of displaying at multiple angles.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A rotating educational display stand comprises a cabinet body, on which a display stand for fixing display objects is rotatably mounted, the display stand rotates around a vertical axis, a camera is mounted on the upper surface of the cabinet body at one side of the display stand through a bracket, a clamping assembly is mounted in the middle of the display stand, and the display stand also has a horizontal rotation axis, and the display stand can be driven to rotate around the rotation axis so that one side of the display stand is tilted upward.

[0008] The above-mentioned display stand has a support base arranged in the cabinet, on which a support plate is rotatably mounted. The exhibition stand is rotatably connected to the support plate through a connecting piece so that the exhibition stand can rotate around the rotation axis of the connecting piece, and a linear drive mechanism is installed on the upper surface of the support plate at a position deviating from the center axis of the exhibition stand.

[0009] In the display stand, the bracket is rotatably mounted on the cabinet, and the rotation axis of the bracket is also horizontally arranged. The bracket is driven to swing back and forth in the space above the cabinet.

[0010] The support plate of the display stand is connected to the bracket through a transmission mechanism.

[0011] The transmission mechanism of the display stand is arranged inside the cabinet, the bracket extends into the cabinet and is rotatably connected to the cabinet, and a long slot for the bracket to rotate is provided on the upper part of the cabinet.

[0012] The above-mentioned display stand, the transmission mechanism includes a first bevel gear installed on the bracket, the bracket swings around the central axis of the first bevel gear, a first rotating shaft is rotatably installed in the cabinet, a second bevel gear is installed at the end of the first rotating shaft, the second bevel gear and the first bevel gear are meshed with each other, a first spur gear is also mounted in the middle of the first rotating shaft, a first arc-shaped rack is fixedly connected to the outer wall of the support plate, and the first spur gear matches the first arc-shaped rack.

[0013] The above-mentioned display stand, the transmission mechanism also includes a second spur gear installed in the cabinet, a second arc-shaped rack is fixed to the side wall of the support plate, the second arc-shaped rack and the first arc-shaped rack are staggered along the axial direction of the support plate, the second spur gear is meshed with the first spur gear, and the second gear and the second arc-shaped rack cooperate with each other.

[0014] The above-mentioned display stand has a telescopic shaft installed on the bracket, the telescopic shaft includes a first shaft and a second shaft that are sleeved with each other, the first shaft is fixedly connected to the bracket, the first bevel gear is sleeved on the second shaft, and a driving component is provided in the cabinet to drive the first bevel gear to move along its own axial direction so that the first bevel gear is separated from the second bevel gear.

[0015] In the above-mentioned display stand, the first axis and the second axis can rotate relative to each other, and the relative rotation angle of the first axis and the second axis is smaller than the swing angle of the bracket. The part of the second axis inside the first axis is provided with a torsion spring, which is used to maintain the relative angle between the first axis and the second axis. The first arcuate rack and the second arcuate rack are arranged at intervals along the circumference of the support plate.

[0016] In the display stand, two groups of the first arc-shaped rack and the second arc-shaped rack are arranged along the circumference of the support plate, and the first arc-shaped rack and the second arc-shaped rack are arranged in a one-to-one correspondence.

[0017] In the above technical scheme, the rotating educational display stand provided by the present invention enables the stand to rotate about a vertical axis and a horizontal axis at the same time. After the engraving is completed, the two rotation modes of the stand are coordinated, so that the camera can shoot the display targets at more angles, especially some display targets with an inner cavity and an upper opening, thereby improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A three-dimensional diagram of an educational display stand provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a cabinet of an educational display stand provided by an embodiment of the present invention;

[0021] Figure 3 A top view of an educational display stand provided by an embodiment of the present invention;

[0022] Figure 4 A front structural sectional view of a cabinet provided by an embodiment of the present invention;

[0023] Figure 5 A partial cross-sectional view of a cabinet of an educational display stand provided by an embodiment of the present invention;

[0024] Figure 6 An enlarged view of the connection state between the support base and the support plate provided in an embodiment of the present invention;

[0025] Figure 7 The embodiment of the present invention provides Figure 4 The enlarged schematic diagram at A in the middle;

[0026] Figure 8 A cross-sectional view of a cabinet in a top view according to an embodiment of the present invention;

[0027] Fig. 9 An exploded view of a telescopic shaft provided in an embodiment of the present invention;

[0028] Fig.10 A partial cross-sectional view of a telescopic shaft provided in an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Cabinet; 11. Long groove; 12. Support plate; 2. Exhibition stand; 21. Fixed block; 22. Connecting rod; 3. Bracket; 31. Camera; 4. Support seat; 41. Support plate; 411. First electric push rod; 5. Transmission mechanism; 51. First bevel gear; 52. First rotating shaft; 53. Second bevel gear; 54. First spur gear; 55. First arc-shaped rack; 56. Second spur gear; 57. Second arc-shaped rack; 58. Second rotating shaft; 6. Telescopic shaft; 61. First shaft; 611. Limiting groove; 62. Second shaft; 621. Slot; 7. Second electric push rod; 8. Torsion spring; 81. First fixing part; 82. Power storage part; 83. Second fixing part. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-Figure 10As shown, a rotating educational display stand provided by an embodiment of the present invention includes a cabinet 1, on which a display stand 2 for fixing display objects is rotatably mounted, the display stand 2 rotates around a vertical axis, a camera 31 is mounted on one side of the display stand 2 on the upper surface of the cabinet 1 through a bracket 3, a clamping assembly is installed in the middle of the display stand 2, and the display stand 2 also has a horizontal rotation axis, and the display stand 2 can be driven to rotate around the rotation axis so that one side of the display stand 2 is tilted upward.

[0034] Specifically, Figure 1 As shown, the cabinet 1 is the main structure of the display stand, and a camera 31 and a display stand 2 are installed on the cabinet 1. The display stand 2 is a horizontally arranged disc, and the display stand 2 can rotate around its own central axis. The upper surface of the display stand 2 is preferably flush with the upper surface of the cabinet 1. A circular hole for installing the display stand 2 is opened on the cabinet 1, and a bracket 3 is fixedly connected to the upper surface of the cabinet 1 on one side of the display stand 2. A camera 31 is installed on the bracket 3. The bracket 3 can adopt an existing adjustable support structure, such as a camera pan head, so that the camera 31 can be adjusted. The shooting angle of 31 can be freely adjusted; a clamping assembly is arranged in the middle of the upper surface of the booth 2, and the clamping assembly is used to fix the display target, and an existing electric clamp or a manual clamp can be adopted. This is the prior art and can be directly applied without further explanation; what is different from the prior art is that the booth 2 also has a horizontally arranged rotation axis. When the booth 2 is driven to rotate along the horizontal axis, one side of the booth can be tilted upward. In order to facilitate the rotation of the booth 2 along the horizontal rotation axis, the diameter of the circular hole needs to be larger than the diameter of the booth 2, such as Figure 1 As shown, the display target originally placed vertically can be gradually tilted, so that visitors can observe the internal structure of the display target and the camera 31 can shoot the structure of its inner cavity. The cabinet 1 is also provided with two sets of driving parts that respectively drive the exhibition stand 2 to rotate along the vertical axis or the horizontal axis.

[0035] Before engraving, the display target is clamped and fixed by a clamping assembly arranged on the booth 2, and the angle of the camera 31 is adjusted, and then engraving can be carried out. After the engraving is completed, the booth 2 can be driven to rotate around its own central axis by a driving member arranged in the cabinet 1. During this process, the booth 2 can also be driven to rotate around a horizontal axis by another driving member, so that the upper surface of the booth 2 is tilted, so that the camera 31 can capture more detailed structures of the display target.

[0036] The rotating educational display stand provided in the embodiment of the present invention enables the stand 2 to rotate about a vertical axis and a horizontal axis at the same time. After the engraving is completed, the two rotation modes of the stand 2 are coordinated, so that the camera 31 can shoot the display targets at more angles, especially some display targets with an inner cavity and an upper opening, thereby improving the display effect.

[0037] Furthermore, a support base 4 is provided in the cabinet 1, and a support plate 41 is rotatably mounted on the support base 4. The exhibition stand 2 is rotatably connected to the support plate 41 through a connecting piece so that the exhibition stand 2 can rotate around the rotation axis of the connecting piece, and a linear drive mechanism is installed on the upper surface of the support plate 41 at a position deviating from the central axis of the exhibition stand 2. In this embodiment, the vertical axis of the exhibition stand 2 is the axis in the vertical direction when the exhibition stand 2 is arranged horizontally. When the exhibition stand 2 is flipped, the vertical axis is flipped accordingly and will not be in the vertical direction, but it still rotates around the nominal vertical axis, and the flipped rotation axis is the axis in the horizontal direction, and the rotation axis is continuously in a horizontal state.

[0038] Specifically, Figure 2 As shown, the cabinet 1 is a hollow structure, and a support base 4 is installed inside the cabinet 1. The support base 4 is a vertically arranged hollow cylindrical structure. A support plate 41 is rotatably installed on the upper surface of the support base 4, and a motor is installed inside the support base 4. The output end of the motor passes through the upper part of the support base 4 and is coaxially connected to the support plate 41, so that the motor can drive the support plate 41 to rotate. In order to ensure that the exhibition stand 2 can rotate driven by the support plate 41, the exhibition stand 2 and the support plate 41 are coaxially arranged; in addition, the exhibition stand 2 is rotatably connected to the support plate 41 through a connecting piece, and optionally, the connecting piece includes a connecting piece fixed to the support plate 41. The fixed block 21 on the disk 41 and the lower surface of the booth 2 are fixedly connected with a connecting rod 22, the connecting rod 22 is rotatably connected to the fixed block 21, and the rotation axis of the connecting rod 22 is in a horizontal plane, and a linear drive mechanism is installed on the upper surface of the support disk 41, and the linear drive mechanism is set offset from the central axis of the booth 2. Optionally, the linear drive mechanism is a first electric push rod 411 vertically installed on the upper surface of the support disk 41, and the first electric push rod 411 is installed at the edge of the upper surface of the support disk 41, so that the first electric push rod 411 can more easily lift up or pull down the position corresponding to the booth 2.

[0039] In another embodiment provided by the present invention, the bracket 3 is rotatably mounted on the cabinet 1 , and the rotation axis of the bracket 3 is also horizontally arranged, and the bracket 3 is driven to swing back and forth in the space above the cabinet 1 .

[0040] Specifically, the bracket 3 is rotatably installed on the cabinet 1, and the bracket 3 swings around a rotation axis in a horizontal plane. Preferably, the rotation axis of the bracket 3 intersects with the vertical axis of the exhibition stand 2 in a horizontal state. When the bracket 3 is driven to swing, it can be photographed at multiple angles. In conjunction with the two rotation methods of the exhibition stand 2, the details of the outer wall and inner wall of the display target can be more comprehensively photographed, and the display target can be displayed in a more three-dimensional manner during the display process. In this embodiment, optionally, another motor for driving the bracket 3 to swing is installed on the cabinet 1, and the motor can drive the bracket 3 to swing back and forth in the space above the cabinet 1. Due to the obstruction and limitation of the cabinet 1, the rotation angle of the bracket 3 is less than 180°.

[0041] Furthermore, the support plate 41 is transmission-connected to the bracket 3 via a transmission mechanism 5 .

[0042] Preferably, the transmission mechanism 5 is arranged inside the cabinet 1, the bracket 3 extends into the inside of the cabinet 1 and is rotatably connected to the cabinet 1, and a long groove 11 for the bracket 3 to rotate is opened on the upper part of the cabinet 1. Such arrangement allows the transmission mechanism 5 to be protected by the cabinet 1 to prevent the various components of the transmission mechanism 5 from being affected by debris generated during the engraving process, and also improves the aesthetics of the educational booth 2.

[0043] Furthermore, the transmission mechanism 5 includes a first bevel gear 51 installed on the bracket 3, the bracket 3 swings around the central axis of the first bevel gear 51, a first rotating shaft 52 is rotatably installed in the cabinet 1, a second bevel gear 53 is installed at the end of the first rotating shaft 52, the second bevel gear 53 and the first bevel gear 51 are meshed with each other, and a first spur gear 54 is also mounted on the middle part of the first rotating shaft 52, and a first arc-shaped rack 55 is fixedly connected to the outer wall of the support plate 41, and the first spur gear 54 cooperates with the first arc-shaped rack 55.

[0044] Specifically, in the above embodiment, both the booth 2 and the bracket 3 are adjusted separately, that is, the booth 2 and the bracket 3 are driven by an independent driving source respectively. Due to the lack of synergy between the two independent driving sources, for example, when one of the driving sources drives the booth 2 to rest, the bracket 3 driven by the other driving source cannot stop moving in time. In other words, when the exhibits are fixed at a certain angle for people to visit and explain, the camera 31 cannot stop immediately at this angle and shoot the exhibits at this angle, resulting in the misalignment of the shooting angle of the camera 31. At this time, it is necessary to additionally adjust the bracket 3, that is, the camera 31. That is, in the process of driving the booth 2 to rotate, it is necessary to frequently control another motor to adjust the angle of the bracket 3 to change the angle of the camera 31 relative to the display target, so as to achieve comprehensive shooting, which is not convenient for operation. In this embodiment, a transmission mechanism 5 is provided between the bracket 3 and the support plate 41, so as to realize the synchronous rotation and stop of the support plate 41 and the bracket 3. Figure 2 , Figure 4 and Figure 5 As shown, the transmission mechanism 5 includes a first bevel gear 51 fixedly connected to the surface of the part of the bracket 3 located inside the cabinet 1, the part of the bracket 3 located inside the cabinet 1 is rotatably connected to the inner wall of the cabinet 1, the center axis of the first bevel gear 51 coincides with the rotation axis of the bracket 3, a support plate 12 is also installed in the cabinet 1, a vertically arranged first rotating shaft 52 is rotatably installed on the support plate 12, a second bevel gear 53 is fixedly connected to one end of the first rotating shaft 52 facing the first bevel gear 51, the second bevel gear 53 is meshed with the first bevel gear 51, in addition, a first spur gear 54 is also mounted on the middle part of the first rotating shaft 52, a first arcuate rack 55 (the arcuate rack is also a part of the sector-shaped section of the gear ring) is fixedly connected to the side wall of the support plate 41, the first spur gear 54 cooperates with the first arcuate rack 55, that is, in the rotation stroke of the support plate 41, when the first spur gear 54 contacts with the first arcuate rack 55, they can mesh, thereby establishing a transmission relationship.

[0045] When the support plate 41 is driven to rotate, it will drive the first arc-shaped rack 55 arranged on its outer wall to revolve around the rotation axis of the support plate 41. During this process, when the first arc-shaped rack 55 is meshed with the first spur gear 54, it will drive the first spur gear 54 to rotate. When the first arc-shaped rack 55 is separated from the first spur gear 54, the first spur gear 54 will remain stationary again. During the rotation of the first spur gear 54, it will drive the second bevel gear 53 arranged on the first rotating shaft 52 to rotate synchronously, and then drive the first bevel gear 51 to rotate through the second bevel gear 53, thereby driving the bracket 3 to swing from the initial section of its stroke to the end of its stroke. When the bracket 3 rotates to the end of its stroke, the support plate 41 is rotated in the opposite direction, and the bracket 3 can be driven to swing from the end of its stroke to the initial end of the stroke through the cooperation of the first spur gear 54 and the first arc-shaped rack 55 and the cooperation of the first bevel gear 51 and the second bevel gear 53, so as to achieve the purpose of driving the bracket 3 to swing back and forth within a certain angle; in this embodiment, the bracket 3 is connected to the support plate 41 through the transmission mechanism 5, that is, a single driving source can be used to realize the simultaneous driving of the bracket 3 and the booth 2, thereby improving the synchronization between the booth 2 and the bracket 3, ensuring that the shooting angle of the camera 31 is the position that needs to be explained, and simplifying the control operation of the bracket 3 and the booth 2.

[0046] Furthermore, the transmission mechanism 5 also includes a second spur gear 56 installed in the cabinet 1, and a second arc-shaped rack 57 is fixed to the side wall of the support plate 41. The second arc-shaped rack 57 and the first arc-shaped rack 55 are staggered along the axial direction of the support plate 41. The second spur gear 56 is meshed with the first spur gear 54, and the second gear and the second arc-shaped rack 57 cooperate with each other.

[0047] Specifically, in the above embodiment, after driving the support plate 41 to rotate forward so that the transmission mechanism 5 drives the bracket 3 to rotate from the initial end of the stroke to the end of the stroke, it is necessary to drive the support plate 41 to rotate reversely so that the transmission mechanism 5 can drive the bracket 3 to rotate from the end of the stroke to the initial end of its stroke. During the adjustment process of the support plate 41 from forward rotation to reverse rotation, the centrifugal force exerted on the display target set on the exhibition stand 2 is relatively large. When the texture of the display target is relatively soft or fragile, such as foam plastic, it is very easy to be damaged by the centrifugal force, and the clamping effect of the display target will also be affected to a certain extent. In this embodiment, the transmission mechanism 5 also includes a second spur gear 56 installed in the cabinet 1, and the above-mentioned support plate 12 is also rotatably installed with a second rotating shaft 58, and the second spur gear 56 is sleeved on the outside of the second rotating shaft 58. Figure 8 As shown, a second arc-shaped rack 57 is fixed to the side wall of the support plate 41, and the second spur gear 56 cooperates with the second arc-shaped rack 57. The second arc-shaped rack 57 and the first arc-shaped rack 55 are staggered in the axial direction and circumferential direction of the support plate 41, that is, the first arc-shaped rack 55 and the second arc-shaped rack 57 are in different planes, and the central axes of the first arc-shaped rack 55 and the second arc-shaped rack 57 do not coincide. It should be noted that in this embodiment, the first arc-shaped rack 55 and the second arc-shaped rack 57 are staggered in the axial direction and circumferential direction of the support plate 41. Figure 8 Intersecting sections are allowed in the viewing angle, and it is only necessary to keep that when the first spur gear 54 and the first arc-shaped rack 55 are meshed, the second spur gear 56 is not meshed with the second arc-shaped rack 57, and when the second spur gear 56 is meshed with the second arc-shaped rack 57, the first spur gear 54 is not meshed with the first arc-shaped rack 55; since the first arc-shaped rack 55 and the second arc-shaped rack 57 are staggered along the axial direction of the support plate 41, it is obvious that in order to ensure that the first spur gear 54 and the second spur gear 56 can always mesh with each other, the thickness of the first spur gear 54 can be greater than the thickness of the first arc-shaped rack 55, and the thickness of the second spur gear 56 can be greater than the thickness of the second arc-shaped rack 57, presenting Figure 6 The state shown is such that the first spur gear 54 and the second spur gear 56 have an intersecting portion, and the two can be meshed through this portion.

[0048] In this embodiment, when the support plate 41 is driven to rotate, the first arc-shaped rack 55 and the second arc-shaped rack 57 are driven to revolve around the central axis of the support plate 41. When the first arc-shaped rack 55 rotates to an angle that meshes with the first spur gear 54, the first spur gear 54 drives the bracket 3 to swing forward through the cooperation of the first bevel gear 51 and the second bevel gear 53, until the first spur gear 54 is separated from the first arc-shaped rack 55, and the bracket 3 just rotates to the end of its stroke. As the support plate 41 continues to rotate, the second arc-shaped rack 57 rotates to an angle that meshes with the second spur gear 56. At this time, the second spur gear 56 first drives the first spur gear 54 to rotate in the opposite direction, and through the first bevel gear The cooperation between the bevel gear 51 and the second bevel gear 53 drives the bracket 3 to swing in the opposite direction, and drives the bracket 3 to swing from the end of its stroke to the initial section of the stroke (the forward swing and reverse swing here only mean that the swing directions of the bracket 3 are opposite); by adding a second spur gear 56 and a second arc-shaped rack 57, and meshing the second spur gear 56 with the first spur gear 54, the second spur gear 56 is used as a transmission member between the first spur gear 54 and the second arc-shaped rack 57, thereby changing the rotation direction of the first spur gear 54, so that the support plate 41 can continuously rotate to drive the bracket 3 to swing back and forth, avoiding the support plate 41 from constantly switching between forward and reverse rotation, thereby preventing the influence of centrifugal force on the unfolding target.

[0049] In another embodiment of the present invention, a telescopic shaft 6 is installed on the bracket 3, and the telescopic shaft 6 includes a first shaft 61 and a second shaft 62 that are sleeved with each other. The first shaft 61 is fixedly connected to the bracket 3, and the first bevel gear 51 is sleeved on the second shaft 62. A driving component is provided in the cabinet 1 to drive the first bevel gear 51 to move along its own axial direction so as to separate the first bevel gear 51 from the second bevel gear 53.

[0050] Specifically, in the above embodiment, since the bracket 3 is in transmission connection with the support plate 41, when the booth 2 rotates, the camera 31 will also change position following the swing of the bracket 3. This display method is only suitable for dynamic display of display objects from multiple angles. During the display process, it is often necessary to carry out targeted explanations of some special details of the display objects. The rotation of the booth 2 and the swing of the bracket 3 are carried out simultaneously, which will make it difficult for the audience's sight and focus to be consistent, resulting in the audience being unable or difficult to determine the explanation position, thereby reducing the effect of the explanation. In this embodiment, the first bevel gear 51 is movably mounted on the bracket 3, and the first bevel gear 51 can be adjusted in position along its own axial direction. During the demonstration, the first bevel gear 51 is separated from the second bevel gear 53 by adjusting the position of the first bevel gear 51, and the transmission relationship between the bracket 3 and the support plate 41 is cut off, thereby ensuring that the camera 31 can maintain a fixed position. Optionally, a telescopic shaft 6 is installed on the bracket 3, and the telescopic shaft 6 has a first shaft 61 and a second shaft 62 that are sleeved with each other. Both the first shaft 61 and the second shaft 62 can move axially with each other. Obviously, a protrusion can be provided on the outer wall of the second shaft 62, and a groove that matches the protrusion and is opened axially along the first shaft 61 can be provided on the inner wall of the first shaft 61. The protrusion is restricted by the groove, so that the second shaft 62 can only be driven to slide axially along the first shaft 61. Figure 2 As shown, the first shaft 61 is fixedly connected to one end of the bracket 3 in the cabinet 1, the first shaft 61 passes through the bracket 3 and is rotatably connected to the inner wall of the cabinet 1, and the first bevel gear 51 is sleeved on the second shaft 62. In order to facilitate the position adjustment of the first bevel gear 51, a driving component for driving the first bevel gear 51 to move is also installed in the cabinet 1. Optionally, the driving component is a second electric push rod 7, which is fixedly connected to the inner wall of the cabinet 1 and arranged along the axial direction of the first bevel gear 51. The output end of the second electric push rod 7 is fixedly connected to a connecting plate, which is sleeved on the outside of the second shaft 62 and rotatably connected to the second shaft 62. Preferably, the first bevel gear 51 is sleeved on the second shaft 62. The outer walls of the two shafts 62 are provided with circular rings protruding along their own circumferential directions at positions corresponding to both sides of the connecting plates. The two circular rings limit the relative position of the connecting plate and the second shaft 62 to avoid relative displacement between the connecting plate and the second shaft 62. The position of the connecting plate is adjusted by the second electric push rod 7, and the connecting plate is used to drive the second shaft 62 to slide relative to the first shaft 61 to achieve position adjustment of the first bevel gear 51. With such a configuration, the transmission relationship between the bracket 3 and the support plate 41 can be cut off by separating the first bevel gear 51 and the second bevel gear 53, so that the exhibition stand 2 can rotate independently, so as to adjust the angle of the exhibition stand 2 independently during the display process.

[0051] Furthermore, the first shaft 61 and the second shaft 62 can rotate relative to each other, and the relative rotation angle of the first shaft 61 and the second shaft 62 is smaller than the swing angle of the bracket 3. The part of the second shaft 62 inside the first shaft 61 is provided with a torsion spring 8, and the torsion spring 8 is used to maintain the relative angle of the first shaft 61 and the second shaft 62. The first arcuate rack 55 and the second arcuate rack 57 are arranged at intervals along the circumference of the support plate 41.

[0052] Specifically, in the above scheme, after the transmission relationship between the bracket 3 and the support plate 41 is cut off, when the transmission relationship needs to be re-established, it is necessary to make the first spur gear 54 mesh again with the point where the first arc-shaped rack 55 was located when the transmission relationship was cut off, or to make the second spur gear 56 mesh again with the point where the second arc-shaped rack 57 was located when the transmission relationship was cut off, that is, the angle of the support plate 41 when the transmission is cut off and the angle of the support plate 41 when the transmission is established need to be the same angle, and it is necessary to ensure that the camera 31 cannot be adjusted in position during this process. If this cannot be guaranteed, It will cause an error in the transmission point, so that the camera 31 cannot swing back and forth along the original route, but will get stuck; in this embodiment, the first shaft 61 and the second shaft 62 can rotate relative to each other, and the angle of relative rotation of the first shaft 61 and the second shaft 62 is smaller than the swing angle of the bracket 3, and the part of the second shaft 62 inside the first shaft 61 is provided with a torsion spring 8, and optionally, the torsion spring 8 includes a first fixing portion 81, two groups of force storage portions 82 connected to both ends of the first fixing portion 81, and the two force storage portions 82 are fixedly connected to the second fixing portion 83 on the side away from the first fixing portion 81, such as Fig. 9 and Fig.10 As shown, the two groups of force storage parts 82 are both spiral-shaped, the first fixing part 81 is bent toward the inside of the force storage part 82, a slot 621 matching the first fixing part 81 is provided on the second shaft 62, the first fixing part 81 is bent and inserted into the slot 621 and matched with the slot 621, the second fixing part 83 is bent toward the outside of the force storage part 82, and a limiting groove 611 matching the second fixing part 83 is provided on the inner wall of the first shaft 61. Preferably, the length of the limiting groove 611 is greater than the overall width of the two second fixing parts 83 along the axial direction of the first shaft 61, so that the second fixing part 83 of the torsion spring 8 can slide along the limiting direction of the limiting groove 611, as shown in FIG. Fig.10As shown, in this arrangement, the first fixing portion 81 connects the force storage portion 82 with the second shaft 62, and the second fixing portion 83 connects the force storage portion 82 with the first shaft 61. At the same time, the cooperation between the second fixing portion 83 and the limiting groove 611 can also serve as the above-mentioned convex block and the card slot, that is, in this embodiment, there is no need to use the above-mentioned convex block and the card slot, and the second fixing portion 83 is directly used as the above-mentioned convex block, and the limiting groove 611 is used as the above-mentioned card slot. By utilizing the restriction of the limiting groove 611 on the second fixing portion 83, the first shaft 61 and the second shaft 62 can both undergo a certain relative rotation and have elasticity to cooperate with the position adjustment of the first bevel gear 51. In addition, this embodiment is different from the above-mentioned embodiment in that the first arcuate rack 55 and the second arcuate rack 57 are arranged at intervals along the axial direction of the support disk 41, that is, at Figure 8 From the perspective, the first arc-shaped rack 55 and the second arc-shaped rack 57 have no intersecting parts, so that after the first arc-shaped rack 55 is separated from the first spur gear 54, the second arc-shaped rack 57 cannot immediately engage with the second spur gear 56, leaving the torsion spring 8 some time to react.

[0053] For the convenience of description, it is assumed that when the first arc-shaped rack 55 is meshed with the first spur gear 54, the support plate 41 rotates to drive the bracket 3 to swing from the initial section of its stroke to the end of its stroke, which is the first stroke, and when the second arc-shaped rack 57 is meshed with the second spur gear 56, the support plate 41 rotates to drive the bracket 3 to swing from the end of its stroke to the initial end of its stroke, which is the second stroke; when the transmission relationship between the bracket 3 and the support plate 41 is cut off, the bracket 3 is in the first stroke and is in the middle position between the initial section of its stroke and the end of its stroke. When the bracket is re-established 3 and the support plate 41, assuming that the first spur gear 54 is just meshed with one end of the first arc-shaped rack 55 (when the support plate 41 drives the first arc-shaped rack 55 to revolve around the central axis of the support plate 41, the entire first arc-shaped rack 55 can mesh with the first spur gear 54 and drive the first spur gear 54 to rotate). At this time, according to the matching relationship between the first arc-shaped rack 55 and the first spur gear 54, the rotation of the support plate 41 can drive the bracket 3 to complete the entire first stroke, and because the bracket 3 is in the first stroke when the transmission relationship is cut off, In the middle position, when the bracket 3 swings to the end of its stroke, the first spur gear 54 is still in the middle of the first arc-shaped rack 55 and meshes with the first arc-shaped rack 55, and the bracket 3 can no longer swing. At this time, the second shaft 62 rotates forward relative to the first shaft 61, and the second shaft 62 drives the first fixing portion 81 to twist the force storage portion 82 and store force. When the first spur gear 54 is separated from the first arc-shaped rack 55, since the second spur gear 56 is not immediately meshed with the second arc-shaped rack 57, the force storage portion 82 rebounds and drives the second The shaft 62 rotates in the opposite direction within the first shaft 61 until the second spur gear 56 meshes with the second arc-shaped rack 57, and then the above-mentioned second stroke begins, and this cycle repeats to ensure that the reciprocating swing of the bracket 3 is not affected when the transmission relationship is reestablished at any angle of the support plate 41. Obviously, in order to ensure that the bracket 3 does not rotate due to vibration or gravity during the period when the transmission relationship between the support frame and the support plate 41 is cut off, a rubber pad may be provided on the groove wall of the long groove 11 on the cabinet 1 to increase the friction between the bracket 3 and the cabinet 1.

[0054] Furthermore, two groups of the first arc-shaped rack 55 and the second arc-shaped rack 57 are both arranged along the circumference of the support plate 41, and the first arc-shaped rack 55 and the second arc-shaped rack 57 are arranged one by one. In this way, one rotation of the support plate 41 can drive the bracket 3 to swing back and forth twice, so that the camera 31 can capture the display target more comprehensively.

[0055] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rotating educational display stand, comprising a cabinet, a display stand for fixing display objects is rotatably mounted on the cabinet, the display stand rotates around a vertical axis, a camera is mounted on the upper surface of the cabinet on one side of the display stand through a bracket, a clamping assembly is mounted in the middle of the display stand, and the characteristics are: The exhibition stand also has a horizontal rotation axis, and the exhibition stand can be driven to rotate around the rotation axis so that one side of the exhibition stand tilts upward.

2. A rotating educational display stand according to claim 1, characterized in that: A support seat is provided in the cabinet, and a support plate is rotatably mounted on the support seat. The exhibition stand is rotatably connected to the support plate through a connecting piece so that the exhibition stand can rotate around the rotation axis of the connecting piece. A linear drive mechanism is installed on the upper surface of the support plate at a position deviating from the center axis of the exhibition stand.

3. A rotating educational display stand according to claim 2, characterized in that: The bracket is rotatably mounted on the cabinet, and the rotation axis of the bracket is also horizontally arranged. The bracket is driven to swing back and forth in the space above the cabinet.

4. A rotating educational display stand according to claim 3, characterized in that: The supporting plate is transmission connected with the bracket through a transmission mechanism.

5. The rotating educational display stand according to claim 3, characterized in that: The transmission mechanism is arranged inside the cabinet, the bracket extends into the inside of the cabinet and is rotatably connected with the cabinet, and a long slot for the bracket to rotate is opened on the upper part of the cabinet.

6. A rotating educational display stand according to claim 4, characterized in that: The transmission mechanism includes a first bevel gear installed on the bracket, the bracket swings around the central axis of the first bevel gear, a first rotating shaft is rotatably installed in the cabinet, a second bevel gear is installed at the end of the first rotating shaft, the second bevel gear and the first bevel gear are meshed with each other, a first spur gear is also mounted in the middle of the first rotating shaft, a first arc-shaped rack is fixedly connected to the outer wall of the support plate, and the first spur gear matches the first arc-shaped rack.

7. A rotating educational display stand according to claim 6, characterized in that: The transmission mechanism also includes a second spur gear installed in the cabinet, a second arc-shaped rack is fixed to the side wall of the support plate, the second arc-shaped rack and the first arc-shaped rack are staggered along the axial direction of the support plate, the second spur gear is meshed with the first spur gear, and the second gear and the second arc-shaped rack cooperate with each other.

8. The rotating educational display stand according to claim 7, characterized in that: A telescopic shaft is installed on the bracket, and the telescopic shaft includes a first shaft and a second shaft that are sleeved with each other. The first shaft is fixedly connected to the bracket, and the first bevel gear is sleeved on the second shaft. A driving component is provided in the cabinet to drive the first bevel gear to move along its own axial direction so that the first bevel gear is separated from the second bevel gear.

9. The rotating educational display stand according to claim 8, characterized in that: The first shaft and the second shaft can rotate relative to each other, and the relative rotation angle of the first shaft and the second shaft is smaller than the swing angle of the bracket. The part of the second shaft inside the first shaft is provided with a torsion spring, and the torsion spring is used to maintain the relative angle of the first shaft and the second shaft. The first arcuate rack and the second arcuate rack are arranged at intervals along the circumference of the support disk.

10. The rotating educational display stand according to claim 7, characterized in that: Two groups of the first arc-shaped racks and the second arc-shaped racks are arranged along the circumference of the support disk, and the first arc-shaped racks and the second arc-shaped racks are arranged in a one-to-one correspondence.

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