Domino display device

Abstract

The invention discloses a domino display device which comprises a base plate, a plurality of switching mechanisms, a plurality of dominos and a lifting mechanism, the base plate is provided with a first side face and a second side face which are oppositely arranged in the thickness direction of the base plate, and a plurality of through grooves penetrating through the first side face and the second side face are formed in the base plate; the plurality of through grooves are sequentially arranged in the arrangement direction; the multiple switching mechanisms penetrate through the through grooves in a one-to-one correspondence mode and are rotationally connected with the base plate, and the switching mechanisms have the freedom degree of rotating around the rotating direction; the multiple dominos and the multiple switching mechanisms are connected in a one-to-one correspondence mode and are all arranged on the side, away from the second side face, of the first side face. The lifting mechanism is arranged on the side, away from the first side face, of the second side face and connected with the switching mechanisms through pull ropes. An operator does not need to adjust the domino again, the use is more convenient, and the display efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a domino display device. Background Art

[0002] Dominoes are rectangular dominoes made of wood, bone, or plastic, arranged in rows with regular spacing. Gently knocking over the first domino triggers a chain reaction, with the rest falling one after the other. A domino chain reaction refers to the ability of a small initial energy in an interconnected system to trigger a series of chain reactions.

[0003] However, in traditional domino display solutions, operators are required to rearrange the dominoes after each display, which is cumbersome and inefficient. Summary of the Invention

[0004] The main purpose of the present application is to provide a domino display device, which aims to solve the problem that the operator needs to rearrange the dominoes after the traditional display is completed.

[0005] To achieve the above-mentioned objectives, the present application provides a domino display device, which includes a base plate, multiple adapter mechanisms, multiple dominoes, and a lifting mechanism. The base plate has a first side surface and a second side surface arranged opposite to each other in its thickness direction. The base plate is provided with multiple through-slots penetrating the first side surface and the second side surface, and the multiple through-slots are arranged in sequence in an arrangement direction; multiple adapter mechanisms are respectively arranged in the through-slots and rotatably connected to the base plate, and the adapter mechanisms have the freedom to rotate around the rotation direction; multiple dominoes are respectively connected to the multiple adapter mechanisms and are all arranged on the side of the first side surface facing away from the second side surface; the lifting mechanism is provided on the side of the second side surface facing away from the first side surface and is connected to each of the adapter mechanisms by a pull rope.

[0006] Optionally, the rotation direction is perpendicular to the arrangement direction.

[0007] Optionally, the transfer mechanism includes a bearing part, a vertical piece and a rotating part, the bearing part is arranged on the side of the first side facing away from the second side and is connected to the dominoes; the vertical piece is perpendicularly arranged on the side of the bearing part facing away from the dominoes and is passed through the through groove, wherein the lifting mechanism is connected to the vertical piece; the rotating part is arranged on the side of the first side facing away from the second side and connects the bearing part and the base plate, so that the bearing part and the base plate are rotatably connected.

[0008] Optionally, the rotating part is a hinge and is arranged between the supporting part and the base plate; wherein the plurality of dominoes have a tilting order, and the rotation axis of the hinge is located on the plane where the side of the domino away from the previous domino is located.

[0009] Optionally, the lifting mechanism includes a frame, an electric cylinder and a moving part, the frame is fixed to the substrate; the electric cylinder has the freedom to extend and retract along the thickness direction of the substrate and is connected to the frame; the moving part is fixed to the piston rod of the electric cylinder; wherein one end of the pull rope is fixed to the moving part, and the other end is connected to the vertical piece.

[0010] Optionally, the rotating part includes two support platforms and a rotating shaft, the two support platforms are relatively arranged on both sides of the through groove in the rotation direction and are fixed to the base plate; the rotating shaft is rotatably connected between the two support platforms and has the freedom to rotate around its own axis, the axial direction of the rotating shaft is the same as the rotation direction, wherein the bearing part is sleeved on the outer periphery of the rotating shaft and fixed to the rotating shaft; the domino display device also includes a horizontal piece and a limiting assembly, the horizontal piece is vertically fixed to the end of the vertical piece away from the supporting part; the limiting assembly is fixed to the side of the second side facing away from the first side and cooperates with the horizontal piece to lock the rotational freedom of the dominoes; wherein the pull rope is connected to the vertical piece by connecting the horizontal piece, each horizontal piece is correspondingly provided with two pull ropes, and the two pull ropes are relatively arranged in the arrangement direction.

[0011] Optionally, the limiting assembly includes a friction pad and a limiting block, the friction pad is fixed to the side of the horizontal piece away from the vertical piece; the limiting block is arranged on the side of the friction pad away from the horizontal piece and fixed to the base plate; wherein, when the domino is perpendicular to the base plate, the friction pad abuts against the limiting block.

[0012] Optionally, the distance between one end of two pull ropes corresponding to the same transverse piece connected to the transverse piece is a, the distance between one end of two pull ropes corresponding to the same transverse piece connected to the moving part is b, and a<b.

[0013] Optionally, a plurality of rope reels are provided on the moving part, and the pull rope is the rope of the rope reel.

[0014] Optionally, the lifting mechanism further includes a slide rail and a slider, the slide rail is fixed to the frame and its extension direction is the same as the thickness direction of the substrate; the slider is slidably matched with the slide rail and is fixed to the moving part.

[0015] A domino display device proposed in an embodiment of the present application, when the demonstration is completed, multiple dominoes are toppled over, at which time the lifting mechanism moves away from the substrate along the thickness direction of the substrate, thereby pulling the adapter mechanism to rotate by the pull rope, further pulling up the multiple dominoes, and then the lifting mechanism moves closer to the substrate along the thickness direction of the substrate, thereby loosening the pull rope, facilitating the next toppling of the dominoes. In this way, there is no need for the operator to rearrange the dominoes, which is more convenient to use and has high display efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a domino display device proposed in an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the structural disassembly of the embodiment; Figure 3 for Figure 1 Another perspective structural diagram of the embodiment; Figure 4 This is a schematic diagram of the structure in which the substrate is tilted in an embodiment of the present application; Figure 5 This is a schematic diagram of the disassembled structure of the sliding portion of an embodiment of the present application; Figure 6 for Figure 5 Another perspective structural diagram of the embodiment; Figure 7 for Figure 5 A schematic diagram of the structural disassembly of the embodiment; Figure 8 for Figure 6 A magnified view of the structure at center A; Figure 9 A schematic diagram of the practical application structure of an embodiment of the present application; Figure 10 for Figure 9 Schematic diagram of the internal structure of the embodiment; Figure 11 for Figure 9 Schematic diagram of the cross-sectional structure of the embodiment.

[0017] In the figure: 1. Base plate; 11. Through slot; 2. Transfer mechanism; 21. Load-bearing part; 22. Vertical piece; 23. Rotating part; 231. Support platform; 232. Rotating shaft; 3. Domino; 4. Lifting mechanism; 41. Frame; 42. Electric cylinder; 43. Moving part; 431. Rope winder; 45. Slide rail; 46. Slider; 51. Horizontal piece; 52. Limiting assembly; 521. Friction pad; 522. Limiting block; 6. Support shell; 7. Glass cover.

[0018] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] refer to Figures 1 to 11 , it should be understood that Figure 2 The connections between the components should be like Figure 1 As compact as Figure 7 The connections between the components should be like Figure 5 As compact as in the example, this is just an example. Figure 2 and Figure 7Some components are disassembled and displayed for easy understanding. An embodiment of the present application provides a domino display device, which may include a base plate 1, multiple adapter mechanisms 2, multiple dominoes 3 and a lifting mechanism 4. The base plate 1 has a first side surface and a second side surface arranged opposite to each other in its thickness direction. The base plate 1 is provided with multiple through grooves 11 passing through the first side surface and the second side surface, and the multiple through grooves 11 are arranged in sequence in the arrangement direction; the multiple adapter mechanisms 2 are respectively arranged in the through grooves 11 and are rotatably connected to the base plate 1, and the adapter mechanisms 2 have the freedom to rotate around the rotation direction; the multiple dominoes 3 are respectively connected to the multiple adapter mechanisms 2 and are all arranged on the side of the first side surface away from the second side surface; the lifting mechanism 4 is arranged on the side of the second side surface away from the first side surface and is connected to each adapter mechanism 2 by a pull rope.

[0024] The embodiment of the present application proposes a domino display device. When the display is completed, multiple dominoes 3 are all toppled over. At this time, the lifting mechanism 4 moves away from the substrate 1 along the thickness direction of the substrate 1, thereby pulling the adapter mechanism 2 to rotate by the pull rope, further pulling up the multiple dominoes 3. Then, the lifting mechanism 4 moves closer to the substrate 1 along the thickness direction of the substrate 1, thereby loosening the pull rope, facilitating the next toppling of the dominoes 3. In this way, there is no need for the operator to readjust the dominoes 3, which is more convenient to use and has high display efficiency.

[0025] It should be understood that the arrangement direction of the through slots 11 can also be understood as the arrangement path of the dominoes 3, such as Figure 1 As shown, the base plate 1 can be a rectangular plate, and the arrangement direction of the through grooves 11 can be the length direction of the rectangle. In this way, multiple dominoes 3 are arranged in sequence in the length direction of the rectangle. It should be understood that when the previous domino 3 falls, it should hit the next domino 3, and when the domino 3 falls, it is rotated by the switching mechanism 2, that is, when the domino 3 falls, it rotates around the rotation direction. In this way, when the rotation direction is perpendicular to the arrangement direction, it is more convenient for the previous domino 3 to hit the next domino 3 when it falls.

[0026] It should be noted that the perpendicularity between the rotation direction and the arrangement direction is only a preferred solution and is not a limitation.

[0027] refer to Figure 2 and Figure 3In an exemplary embodiment, the transfer mechanism 2 may include a supporting portion 21, a vertical piece 22, and a rotating portion 23. The supporting portion 21 is disposed on the side of the first side facing away from the second side and is connected to the domino 3. The vertical piece 22 is disposed perpendicularly to the side of the supporting portion 21 facing away from the domino 3 and is inserted into the through slot 11. The lifting mechanism 4 is connected to the vertical piece 22. The rotating portion 23 is disposed on the side of the first side facing away from the second side and connects the supporting portion 21 and the base plate 1 so that the supporting portion 21 and the base plate 1 are rotatably connected. In an exemplary embodiment, the rotating portion 23 is a hinge and is disposed between the supporting portion 21 and the base plate 1. The multiple dominoes 3 have a tilting order, and the rotation axis of the hinge is located on the plane where the side of the domino 3 facing away from the previous domino 3 is located.

[0028] Specifically, such as Figure 2 As shown, the rotating portion 23 may be a hinge, such as Figure 3 As shown, this is the state when the lifting mechanism 4 pulls up the domino 3 through the pull rope, and the rotation axis of the hinge is located on the plane corresponding to the right side of the domino 3. At this time, the lifting mechanism 4 rises and releases the pull rope, pushing the domino 3 located on the leftmost side to the right, thereby driving multiple dominoes 3 to fall from left to right in sequence; the vertical piece 22 is connected to the supporting part 21, and the supporting part 21 is connected to the domino 3. During the process of the domino 3 falling, the vertical piece 22 also rotates around the hinge in the through groove 11, and then the lifting mechanism 4 moves downward to tighten the pull rope, and then pulls the vertical piece 22 back to its original position, and makes the domino 3 stand upright again.

[0029] The position of the vertical piece 22 when the domino 3 is erected is the original position of the vertical piece 22 . The domino 3 being erected means that the domino 3 is perpendicular to the base plate 1 .

[0030] like Figure 2 As shown, the vertical piece 22 and the supporting portion 21 as a whole can be L-shaped in cross section perpendicular to the width direction of the substrate 1. Figure 3 In the embodiment, the rotation axis of the hinge is also located on the plane where the right side of the vertical piece 22 is located. In this way, the pull rope can pull the vertical piece 22 away from the end of the bearing portion 21 below the rotation axis of the hinge to pull the vertical piece 22 back to its original position.

[0031] refer to Figure 3 In an exemplary embodiment, the lifting mechanism 4 may include a frame 41, an electric cylinder 42 and a moving part 43, the frame 41 is fixed to the substrate 1; the electric cylinder 42 has the freedom to extend and retract along the thickness direction of the substrate 1 and is connected to the frame 41; the moving part 43 is fixed to the piston rod of the electric cylinder 42; wherein one end of the pull rope is fixed to the moving part 43, and the other end is connected to the vertical piece 22.

[0032] Specifically, when the display is completed, the domino 3 falls over, the piston rod of the electric cylinder 42 retracts, driving the moving part 43 away from the base plate, tightening the pull rope and pulling the vertical piece 22, thereby making the domino 3 stand upright again. At this time, the pull rope is in a taut state. After that, the piston rod of the electric cylinder 42 extends, driving the moving part 43 close to the base plate, thereby loosening the pull rope to facilitate the next domino 3 toppling.

[0033] refer to Figures 5 to 8 In an exemplary embodiment, the rotating part 23 may include two support platforms 231 and a rotating shaft 232. The two support platforms 231 are relatively arranged on both sides of the through groove 11 in the rotation direction and are fixed to the base plate 1; the rotating shaft 232 is rotatably connected between the two support platforms 231 and has the freedom to rotate around its own axis, and the axial direction of the rotating shaft 232 is the same as the rotation direction, wherein the bearing part 21 is sleeved on the outer periphery of the rotating shaft 232 and fixed to the rotating shaft 232; the domino display device may also include a horizontal piece 51 and a limiting component 52, the horizontal piece 51 is vertically fixed to the end of the vertical piece 22 away from the bearing part 21; the limiting component 52 is fixed to the side of the second side facing away from the first side and cooperates with the horizontal piece 51 to lock the rotation freedom of the domino 3; wherein, the pull rope is connected to the vertical piece 22 by connecting the horizontal piece 51, and each horizontal piece 51 is correspondingly provided with two pull ropes, and the two pull ropes are arranged oppositely in the arrangement direction.

[0034] It should be noted that this is another embodiment of the rotating part 23, such as Figure 6 and Figure 7 As shown, the rotating part 23 is composed of two support platforms 231 and a rotating shaft 232. The supporting part 21 is sleeved on the rotating shaft 232 and fixed to the rotating shaft 232. The dominoes 3, the vertical pieces 22 and the horizontal pieces 51 connected to the supporting part 21 can all rotate around the axial direction of the rotating shaft 232. When the demonstration is completed, multiple dominoes 3 are tilted. At this time, the piston rod of the electric cylinder 42 is retracted, the moving part 43 moves away from the base plate 1 and pulls the horizontal piece 51 through the pull rope, so that the dominoes 3 stand upright.

[0035] Among them, two pull ropes pull the horizontal piece 51 at both ends of the horizontal piece 51, which makes it easier to pull the horizontal piece 51 to make the dominoes 3 stand upright.

[0036] At the same time, when the domino 3 is erected, the limiting assembly 52 cooperates with the cross piece 51 to lock the rotational freedom of the domino 3, and the domino 3 will fall over again when it hits the domino 3.

[0037] It should be understood that if Figure 3As shown, if the hinge rotation scheme is adopted, when the domino 3 is pulled up and kept upright, the supporting portion 21 and the base plate 1 are in contact with each other to prevent the domino 3 from naturally falling over, and at this time, multiple dominoes 3 can only fall over from left to right, that is, they can be tilted and displayed in one direction; while the rotation scheme of the support platform 231 and the rotating shaft 232 is adopted, as shown Figure 5 As shown, when the domino 3 is erected, the limiting assembly 52 cooperates with the horizontal piece 51 to limit the position to prevent the domino 3 from naturally falling over. The domino 3 can fall from left to right or from right to left, that is, it can be tilted in two directions for better display effect.

[0038] Further, such as Figure 7 As shown, the side where the supporting portion 21 is connected to the vertical piece 22 may be in a semicircular arc shape to facilitate the axial rotation of the supporting portion 21 around the rotating shaft 232 .

[0039] In addition, during the toppling process of the domino 3, the transverse piece 51 will also rotate in the through groove 11, that is, the size of the through groove 11 should meet the condition of "not interfering with the transverse piece 51".

[0040] refer to Figure 8 In an exemplary embodiment, the limiting assembly 52 may include a friction pad 521 and a limiting block 522, wherein the friction pad 521 is fixed to the side of the horizontal piece 51 away from the vertical piece 22; the limiting block 522 is arranged on the side of the friction pad 521 away from the horizontal piece 51 and is fixed to the base plate 1; wherein, when the domino 3 is perpendicular to the base plate 1, the friction pad 521 abuts against the limiting block 522.

[0041] Specifically, when the domino 3 is pulled to an upright position, the pull rope is loosened through the lifting mechanism 4, and the friction pad 521 contacts the limit block 522. At this time, the domino 3 is upright and the center of gravity is vertically downward. At this time, the friction between the friction pad 521 and the limit block 522 can prevent the domino 3 from naturally falling over. At the same time, when the domino 3 is hit by other dominoes 3, the hit domino 3 can still fall over normally.

[0042] refer to Figure 6 In an exemplary embodiment, the distance between the ends of the two pull ropes corresponding to the same horizontal piece 51 connected to the horizontal piece 51 is a, and the distance between the ends of the two pull ropes corresponding to the same horizontal piece 51 connected to the moving part 43 is b, and a<b.

[0043] So, like Figure 6 As shown, the two pull ropes are arranged in an "eight" shape. In this way, when the lifting mechanism 4 descends and pulls up the domino 3 through the pull ropes, the two angled pull ropes can quickly pull up the domino 3, and the pulling process is stable, and the shaking of the domino 3 is greatly reduced.

[0044] refer to Figure 3 or Figure 5 In an exemplary embodiment, a plurality of rope reels 431 are provided on the moving portion 43 , and the pull rope is a rope of the rope reel 431 .

[0045] Specifically, when installing the domino display device, the length of the pull rope needs to be adjusted so that when the stroke of the electric cylinder 42 reaches the shortest, the pull rope can pull up the domino 3. When the stroke of the electric cylinder 42 reaches the maximum, the pull rope is relaxed and does not affect the toppling of the domino 3. That is, the pull rope will not be tightened during the toppling of the domino 3. Therefore, the use of the rope reel 431 can more conveniently adjust the length of the pull rope, and the installation process is more convenient.

[0046] refer to Figure 3 or Figure 5 In an exemplary embodiment, the lifting mechanism 4 may further include a slide rail 45 and a slider 46 . The slide rail 45 is fixed to the frame 41 and its extension direction is the same as the thickness direction of the substrate 1 . The slider 46 is slidably matched with the slide rail 45 and is fixed to the moving part 43 .

[0047] Specifically, one electric cylinder 42 and moving part 43 need to pull up multiple dominoes 3, so setting a slider 46 to cooperate with the slide rail 45 can further improve the stability of the moving part 43 during movement, making the process of pulling up the dominoes 3 more stable.

[0048] refer to Figures 9 to 11 In an optional embodiment, the arrangement direction of the through slots 11 is the arrangement direction of the dominoes, which can be set according to actual needs, such as Figure 11 As shown, there are dominoes 3 arranged in a straight line, dominoes 3 arranged in a curve, and dominoes 3 arranged in a spiral line.

[0049] Specifically, a support shell 6 can be provided below the substrate 1 to support the domino display device, while the structures below the substrate 1 are all protected by the support shell 6; in addition, a glass cover 7 can be provided above the substrate 1 to protect the dominoes 3, while allowing the audience to watch the falling process of the dominoes 3 through the glass cover 7.

[0050] Furthermore, if a glass cover 7 is provided, the dominoes 3 can be knocked over by a mechanical structure. For example, a telescopic electric cylinder can be provided at the first domino, and the domino can be knocked over when the electric cylinder is extended. It should be understood that any specific mechanical structure can be used for knocking over.

[0051] In addition, in Figures 9 to 11 In the structure shown, there is a tilted substrate 1, referring to Figure 4At this time, only the above-mentioned rotating part 23 can be used as a hinge solution, and the inclination angle of the base plate cannot be too large to ensure that when the dominoes 3 are erected, they will not fall over naturally. In this way, the dominoes 3 can be tilted from right to left in sequence, and the dominoes 3 can be pulled up by the lifting mechanism 4.

[0052] If the rotating portion 23 includes a support platform 231 and a rotating shaft 232 , the base plate 1 should be in a horizontal state, so that the dominoes 3 can be tilted in both directions and the dominoes 3 can be pulled up by the lifting mechanism 4 .

[0053] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A domino display device, characterized in that: include: A substrate (1) having a first side surface and a second side surface arranged opposite to each other in a thickness direction thereof, wherein the substrate (1) is provided with a plurality of through grooves (11) penetrating the first side surface and the second side surface, wherein the plurality of through grooves (11) are arranged sequentially on the substrate, and the arrangement direction is parallel to the plane where the substrate (1) is located; A plurality of transfer mechanisms (2) are provided in a one-to-one correspondence through the through slots (11) and are rotatably connected to the substrate (1); the transfer mechanisms (2) have a degree of freedom to rotate about a rotation direction, the rotation direction being parallel to the plane where the substrate (1) is located and intersecting with the arrangement direction; A plurality of dominoes (3) are connected to the plurality of switching mechanisms (2) in a one-to-one correspondence and are all arranged on a side of the first side facing away from the second side; A lifting mechanism (4) is arranged on a side of the second side facing away from the first side and is connected to each of the switching mechanisms (2) via a pull rope.

2. The domino display device according to claim 1, wherein: The rotation direction is perpendicular to the arrangement direction.

3. The domino display device according to claim 1, wherein: The switching mechanism (2) comprises: A bearing portion (21) is arranged on a side of the first side facing away from the second side and is connected to the domino (3); A vertical piece (22) is vertically arranged on a side of the bearing portion (21) away from the domino (3) and is passed through the through slot (11), wherein the lifting mechanism (4) is connected to the vertical piece (22); The rotating portion (23) is arranged on a side of the first side facing away from the second side and connects the supporting portion (21) and the substrate (1) so that the supporting portion (21) and the substrate (1) are rotatably connected.

4. The domino display device according to claim 3, wherein: The rotating portion (23) is a hinge and is arranged between the supporting portion (21) and the base plate (1); The plurality of dominoes (3) have a falling order, and the rotation axis of the hinge is located on a plane where a side of the domino (3) faces away from the previous domino (3) is located.

5. The domino display device according to claim 3, wherein: The lifting mechanism (4) comprises: A frame (41) is fixed to the base plate (1); An electric cylinder (42) having the freedom to expand and contract along the thickness direction of the substrate (1) and connected to the frame (41); A moving part (43) is fixed to the piston rod of the electric cylinder (42); One end of the pull rope is fixed to the moving part (43), and the other end is connected to the vertical piece (22).

6. The domino display device according to claim 5, wherein: The rotating part (23) comprises: Two support platforms (231) are arranged on opposite sides of the through slot (11) in the rotation direction and are fixed to the base plate (1); A rotating shaft (232) is rotatably connected between the two support platforms (231) and has the freedom to rotate around its own axis, the axial direction of the rotating shaft (232) being the same as the rotation direction, wherein the bearing portion (21) is sleeved on the outer periphery of the rotating shaft (232) and fixed to the rotating shaft (232); The domino display device also includes: A transverse piece (51) is vertically fixed to an end of the vertical piece (22) away from the bearing portion (21); A limiting component (52) is fixed to a side of the second side facing away from the first side and cooperates with the transverse piece (51) to lock the rotational freedom of the domino (3); The drawstrings are connected to the vertical pieces (22) by connecting the horizontal pieces (51), and each horizontal piece (51) is provided with two drawstrings, which are arranged opposite to each other in the arrangement direction.

7. The domino display device according to claim 6, wherein: The limiting component (52) includes: A friction pad (521) is fixed to a side of the transverse piece (51) facing away from the vertical piece (22); a limit block (522), arranged on a side of the friction pad (521) facing away from the transverse piece (51) and fixed to the base plate (1); When the domino (3) is perpendicular to the base plate (1), the friction pad (521) abuts against the limiting block (522).

8. The domino display device according to claim 6, wherein: The distance between the two pull ropes corresponding to the same transverse piece (51) and one end connected to the transverse piece (51) is a, and the distance between the two pull ropes corresponding to the same transverse piece (51) and one end connected to the moving part (43) is b, and a<b.

9. The domino display device according to claim 5, wherein: A plurality of rope reels (431) are provided on the moving portion (43), and the pull rope is a rope of the rope reel (431).

10. The domino display device according to claim 5, wherein: The lifting mechanism (4) further comprises: A slide rail (45) is fixed to the frame (41) and extends in the same direction as the thickness direction of the substrate (1); The slider (46) is slidably engaged with the slide rail (45) and is fixed to the moving part (43).

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