Double-eccentric-shaft type three-opening display cylinder

Abstract

The utility model discloses a double-eccentric-shaft type three-opening display cylinder. At present, a word memorizing method is only limited to writing practice or electronic equipment, and a written memorizing method is not provided with a corresponding small appliance. A containing cavity is defined by the top wall of a bottom plate and the inner circumferential wall of a main cylinder, an upper cover is detachably connected to the top end of the main cylinder, a first position control plate, a middle position control plate and a tail position control plate are vertically arranged in the containing cavity, and the bottom end of the first position control plate, the bottom end of the middle position control plate and the bottom end of the tail position control plate are all fixedly connected to the bottom plate. The distance between the side, close to the middle position control plate, of the first position control plate and the side, close to the middle position control plate, of the first position control plate is two times of the width of the first position control plate, the first driving shaft and the second driving shaft are arranged in the containing cavity, and the first driving shaft is sleeved with the reel body. The outer end of the reel body passes through the outer side wall of the first position control plate, the outer side wall of the middle position control plate and the outer side wall of the tail position control plate and then is connected with the second driving shaft, and three openings corresponding to the first position control plate, the middle position control plate and the tail position control plate one to one are machined in the main barrel.

Description

Technical Field

[0001] This utility model specifically relates to a double-eccentric shaft type three-opening display tube, belonging to the field of learning tools. Background Technology

[0002] The core of English vocabulary memorization lies in the combination of scientific methods and diverse techniques, among which the Ebbinghaus forgetting curve method is particularly effective. By reinforcing memory through spaced repetition—for example, reviewing on the 1st, 7th, and 30th day after learning vocabulary—the long-term memory retention rate can be increased from 13% to 86%. Currently, the Ebbinghaus forgetting curve method is presented in two main forms: one is through pre-programmed memorization on electronic devices, and the other is through written memorization on paper. However, given the requirement for primary and secondary school students to use electronic devices sparingly, the introduction of electronic devices for vocabulary memorization can bring other negative effects related to electronic devices. Written memorization on paper requires a high-quality learning environment, necessitates checking memorization progress independently, has limited content, and the review effect after writing is poor, making it difficult to utilize fragmented time for anytime learning. Currently, there are few learning tools that utilize electricity for memorization, and no small, electricity-free memorization devices are specifically adapted to the Ebbinghaus forgetting curve. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a double-eccentric shaft type three-opening display tube is provided to solve the above problems.

[0004] A double-eccentric shaft type three-opening display tube includes a main tube body, a top cover, a bottom plate, a first control plate, a middle control plate, a last control plate, a first drive shaft, a second drive shaft, and a scroll body. The main tube body is vertically arranged, and the bottom plate is fixedly connected to the bottom end of the main tube body. The top wall of the bottom plate and the inner circumferential wall of the main tube body form a placement cavity. The top cover is detachably connected to the top end of the main tube body. The first control plate, the middle control plate, and the last control plate are vertically arranged in the placement cavity along the circumferential direction of the main tube body. The bottom ends of the first control plate, the middle control plate, and the last control plate are all fixedly connected to the bottom plate. The distance from one side of the control plate closest to the center control plate to the other side of the center control plate is twice the width of the first control plate. The distance from one side of the last control plate closest to the center control plate to the other side of the center control plate is twice the width of the last control plate. The first drive shaft and the second drive shaft are vertically arranged in the placement cavity. The scroll body is fitted onto the first drive shaft. The outer end of the scroll body passes through the outer side wall of the first control plate, the outer side wall of the center control plate, and the outer side wall of the last control plate in sequence before connecting to the second drive shaft. The main cylinder is machined with three openings that correspond one-to-one with the first control plate, the center control plate, and the last control plate.

[0005] The beneficial effects of this utility model are as follows:

[0006] This utility model utilizes a main cylinder, three openings on the main cylinder, a first control plate, a middle control plate, a last control plate, a first drive shaft, a second drive shaft, and a scroll body to form a rotating tool with three exposed openings. Through the cooperation of the first drive shaft and / or the second drive shaft, the paper content on the scroll body can be displayed at intervals. By limiting the distance between the first control plate and the middle control plate, and between the last control plate and the sides of the middle control plate, and the width of the middle and last control plates themselves, it is ensured that each piece of content in the scroll body appears on days 1, 4, and 7 respectively. That is, the display order of each piece of content is only that the first day is displayed at the opening corresponding to the first control plate, the fourth day at the opening corresponding to the middle control plate, and the last day at the opening corresponding to the last control plate, while the other times are in a covered state. This forms a standardized and effective display process for the content, which is beneficial for users to form a standardized memorization process with the help of this utility model.

[0007] The dual-axis setting of this utility model can also realize the forward and reverse review process of the paper content on the scroll body, which can be achieved by rotating the first drive shaft or the second drive shaft as needed. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention in the wide and flat type;

[0009] Figure 2 This is a top view of the structure of this utility model;

[0010] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0011] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0012] Figure 5 This is a top view of the present invention when it is equipped with multiple guide grooves, with the top cover removed.

[0013] Figure 6 A three-dimensional structural diagram of a guide groove;

[0014] Figure 7 A three-dimensional structural diagram showing the connection relationship between the scroll body and the first drive shaft;

[0015] Figure 8 This is a three-dimensional structural diagram of the first drive shaft, showing only the top structure of the first drive shaft.

[0016] Figure 9 This is a schematic diagram of the present invention in its elongated form during use;

[0017] Figure 10This is a top view of the structure of this utility model without the scroll body installed;

[0018] Figure 11 This is a top view of the structure when the main shaft of this utility model is configured.

[0019] In the diagram: 1-Main cylinder; 2-Upper cover; 3-Bottom plate; 4-First control plate; 4-1-First wall-mounted plate; 5-Middle control plate; 5-1-Second wall-mounted plate; 6-End control plate; 6-1-Third wall-mounted plate; 7-First drive shaft; 8-Second drive shaft; 9-Opening; 9-1-First opening; 9-2-Second opening; 9-3-Third opening; 10-Roller body; 10-1-First fixed support sleeve; 10-2-Strip display belt; 10-3-Sliding belt; 11-Placement cavity; 13-Second fixed support sleeve; 14-First steering shaft; 15-Second steering shaft; 16-Third steering shaft; 17-Drive swivel cap; 18-First guide groove; 19-Second guide groove; 20-Main shaft. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0021] Specific implementation method one: Combining Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10This embodiment describes a circumferentially three-opening double-eccentric shaft memory cylinder, which is a specialized auxiliary tool for refining and extending memory based on the Ebbinghaus forgetting curve method or the 147 method. The Ebbinghaus forgetting curve method and the 147 memory method are similar memory methods and can both be implemented using this invention. Specifically, this invention includes a main cylinder 1, an upper cover 2, a bottom plate 3, a first control plate 4, a middle control plate 5, a last control plate 6, a first drive shaft 7, a second drive shaft 8, and a scroll body 1. 0, wherein the main cylinder 1 is the main structure, which is vertically arranged. The bottom plate 3 is fixedly connected to the bottom end of the main cylinder 1, forming a structure with an open top and a sealed bottom, which is convenient for hand gripping and use. The top wall of the bottom plate 3 and the inner circumferential wall of the main cylinder 1 form a placement cavity 11. The placement cavity 11 is a cylindrical cavity. The top cover 2 is detachably connected to the top of the main cylinder 1. The first control plate 4, the middle control plate 5, and the last control plate 6 are vertically arranged in the placement cavity 11 along the circumferential direction of the main cylinder 1. The bottom ends of plate 4, the middle control plate 5, and the end control plate 6 are all fixedly connected to the base plate 3. The distance from one side of the first control plate 4 closest to the middle control plate 5 to the other side of the middle control plate 5 is twice the width of the first control plate 4. The distance from one side of the end control plate 6 closest to the middle control plate 5 to the other side of the middle control plate 5 is twice the width of the end control plate 6. The first drive shaft 7 and the second drive shaft 8 are vertically arranged in the placement cavity 11. The scroll body 10 is fitted onto the first drive shaft 7. The outer end passes through the outer side wall of the first control plate 4, the outer side wall of the middle control plate 5, and the outer side wall of the last control plate 6 in sequence before connecting to the second drive shaft 8. The main cylinder 1 is machined with three openings 9 corresponding to the first control plate 4, the middle control plate 5, and the last control plate 6. The first control plate 4, the middle control plate 5, and the last control plate 6 are each provided with an opening 9. Each opening 9 is used to display the contents of the scroll body 10 that is attached to the first control plate 4, the middle control plate 5, or the last control plate 6.

[0022] In this embodiment, the first control plate 4, the middle control plate 5, or the last control plate 6 have the same structural form, differing only in their positions and the order of their use. The three plates form three display positions, facilitating the display of the scroll 10 in three parts. The content of the scroll 10 is exposed on days 1, 4, and 7, creating a segmented display process. This allows the user to see the corresponding content of each opening 9 only after the corresponding number of days or fixed intervals. Thus, through the multi-opening display structure of this invention at predetermined intervals, the user forms a reasonable and effective memorization process of the content on the scroll 10. Figure 1 and Figure 9As shown, in this embodiment, according to the product requirements of horizontal or vertical display of the opening 9, different specifications of scroll bodies 10 are formed. The specific configuration is based on the arrangement of the content displayed on the scroll body 10. This utility model is particularly suitable for the related memorization process of Chinese sentences and vocabulary, and English vocabulary and phrases.

[0023] Furthermore, the top of the main cylinder 1 is machined with a first connecting part, and the upper cover 2 is a circular cover that adapts to the structure of the main cylinder 1. The outer or inner circumferential wall of the upper cover 2 is machined with a second connecting part. The first connecting part and the second connecting part are detachably connected, which can be achieved by the existing annular groove and the snap-fit ​​of the protrusion. The fitting position is on the outer or inner wall of the main cylinder 1, which facilitates the disassembly of the two.

[0024] Furthermore, the scroll 10 is a rolled structure, formed by winding a strip of paper. Its outer wall is decorated with relevant text content, specifically Chinese sentences and vocabulary, and English vocabulary and phrases, for the user to memorize. After the scroll 10 is wound from the first drive shaft 7 to the second drive shaft 8, it indicates that the user has completed the use of the scroll 10. After the scroll 10 is removed from the second drive shaft 8, a new scroll 10 is placed on the first drive shaft 7 to proceed with the reasonable memorization process of the content displayed on the next scroll 10.

[0025] The contents on a scroll 10 can also be reviewed and memorized by coordinating the forward and reverse rotation of the first drive shaft 7 and the second drive shaft 8. That is, the scroll 10 moves back and forth between the first drive shaft 7 and the second drive shaft 8 to realize the review process. However, whether it is the memory mode of the Ebbinghaus forgetting curve or the review and memory usage mode, the rotation direction of the first drive shaft 7 and the second drive shaft 8 is the same, only the forward or reverse rotation is different.

[0026] Specific Implementation Method Two: This implementation method is a further limitation of Specific Implementation Method One. In this implementation method, the outer wall of the first control plate 4 is the first abutment wall 4-1, which is the first part for display and use. The outer wall of the middle control plate 5 is the second abutment wall 5-1, which is the second part for display and use. The outer wall of the end control plate 6 is the third abutment wall 6-1, which is the third part for display and use. The three openings 9 include the first opening 9-1, the second opening 9-2, and the third opening 9-3. The shapes of the first opening 9-1, the second opening 9-2, and the third opening 9-3 are... All openings are rectangular. The opening area of ​​the first opening 9-1 is matched with the area of ​​the first wall-mounted 4-1, the opening area of ​​the second opening 9-2 is matched with the area of ​​the second wall-mounted 5-1, and the opening area of ​​the third opening 9-3 is matched with the area of ​​the third wall-mounted 6-1. In addition, the corresponding structural configuration is that the width of the strip display strip 10-2 is matched with the width of the first wall-mounted 4-1, the width of the strip display strip 10-2 is matched with the width of the second wall-mounted 5-1, and the width of the strip display strip 10-2 is matched with the width of the third wall-mounted 6-1. The above dimensional relationship helps to improve the adaptability of each wall-mounted display content to the opening 9.

[0027] Specific Implementation Method 3: This implementation method is a further limitation of Specific Implementation Method 1 or 2. In this implementation method, the roll body 10 includes a first fixed support sleeve 10-1 and a strip display belt 10-2. The first fixed support sleeve 10-1 is a basic support sleeve that provides a reference position for the winding of the strip display belt 10-2. The strip display belt 10-2 is wound around the first fixed support sleeve 10-1 one turn at a time. The inner end of the strip display belt 10-2 is set on the first fixed support sleeve 10-1. The cooperation structure between the two is similar to the existing paper roll structure with an inner hollow core. The outer end of the strip display belt 10-2 passes around the first abutment wall 4-1, the second abutment wall 5-1 and the third abutment wall 6-1 and is detachably connected to the second drive shaft 8. The hollow structure of the first fixed support sleeve 10-1 not only provides a winding position for the strip display belt 10-2 through its outer wall, but also allows it to be fitted and connected to the first drive shaft 7 through its inner wall.

[0028] Furthermore, the content displayed on the bar display strip 10-2 is in unit form, and the area occupied by each unit form corresponds to the area of ​​the opening 9.

[0029] Furthermore, the inner wall of the first fixed support sleeve 10-1 is machined with anti-slip texture to increase the connection strength after it is fitted with the first drive shaft 7 and reduce the probability of slippage.

[0030] Specific Implementation Method Four: This implementation method is a further limitation of Specific Implementation Methods One, Two, or Three. In this implementation method, a second fixed support sleeve 13 is provided at the outer end of the bar display strip 10-2. The second fixed support sleeve 13 is fitted onto the second drive shaft 8. The outer end of the bar display strip 10-2 is detachably connected to the outer wall of the second fixed support sleeve 13. The structural form of the second fixed support sleeve 13 is consistent with the structural form of the first fixed support sleeve 10-1. The working principle of the interaction between the first fixed support sleeve 10-1, the bar display strip 10-2, and the second fixed support sleeve 13 is as follows:

[0031] As the first drive shaft 7 and the second drive shaft 8 rotate synchronously, the strip display belt 10-2 is wound out from the first drive shaft 7 and gradually wrapped around the second drive shaft 8.

[0032] Furthermore, the outer end of the bar display strip 10-2 may be provided with a small hook for hanging on the second fixed support sleeve 13, and the second fixed support sleeve 13 is provided with a hanging ring that can be detachably connected to the small hook.

[0033] Specific Implementation Method Five: This implementation method is a further limitation of Specific Implementation Methods One, Two, Three, or Four. In this implementation method, the first drive shaft 7 is positioned close to the first control plate 4 to achieve the cooperation between the two. A first steering shaft 14 is respectively provided on both sides of the first control plate 4. During the configuration of the first steering shaft 14 and the first control plate 4, the two ends of the first control plate 4 are respectively machined with inner grooves, the length of which is in the same direction as the outer wall of the end of the first control plate 4. The first steering shaft 14 is vertically positioned in the inner grooves it is close to. The movement of the bar display strip 10-2 drives the first steering shaft 14 to rotate, which is beneficial for lifting the bar display strip. The display strip 10-2 is stably rotated; the second drive shaft 8 is set close to the end control plate 6, and a second steering shaft 15 is set on each side of the end control plate 6. A third steering shaft 16 is set on each side of the central control plate 5. The configuration purpose of the second steering shaft 15 and the third steering shaft 16 is the same as the configuration purpose of the first steering shaft 14. Through the cooperation between the two first steering shafts 14, the two second steering shafts 15 and the two third steering shafts 16, the coordinated steering of six positions can be achieved, which improves the smoothness of rotation of each steering position of the bar display strip 10-2 and avoids jamming that affects the use effect.

[0034] Specific Implementation Method Six: This implementation method is a further limitation of Specific Implementation Method One, Two, Three, Four or Five. In this implementation method, the lower end of the first drive shaft 7 is hinged to the base plate 3, and the upper end of the first drive shaft 7 is the first power input end, which passes through the upper cover 2 and is disposed outside the upper cover 2; the lower end of the second drive shaft 8 is hinged to the base plate 3, and the upper end of the second drive shaft 8 is the second power input end, which passes through the upper cover 2 and is disposed outside the upper cover 2.

[0035] Specific Implementation Method Seven: This implementation method is a further limitation of Specific Implementation Methods One, Two, Three, Four, Five, or Six, combined with... Figure 11 As shown, in this embodiment, the roll body 10 is a paper roll or a roll made of plastic. The first power input end is connected to a drive cap 17 or a micro motor. Depending on the specific situation, when the first power input end of the first drive shaft 7 and the second power input end of the second drive shaft 8 are both equipped with a drive cap 17, after the first drive shaft 7 is rotated at the same time, the first drive shaft 7 rotates and drives the strip display strip 10-2 in the roll body 10 to extend outward, and the second drive shaft 8 rotates and synchronously winds the strip display strip 10-2.

[0036] Furthermore, the micro motor is used in a way that differs from the above in that it is electric instead of manual, saving the amount of manual operation required to rotate the first drive shaft 7.

[0037] Furthermore, a main shaft 20 can be provided between the first drive shaft 7 and the second drive shaft 8. The main shaft 20 is connected to the first drive shaft 7 and the second drive shaft 8 through two conveyor belts. The two conveyor belts are located in the placement cavity 11. The upper end of the drive main shaft 20 passes through the upper cover 2 and is connected to the motor. The rotation of the main shaft 20 drives the first drive shaft 7 and the second drive shaft 8 to rotate synchronously through the two conveyor belts, thereby realizing the cooperative rotation process of the two in the same direction. When the first drive shaft 7 rotates, it drives the second drive shaft 8 to rotate synchronously through the main shaft 20 and the two conveyor belts. The working process of the first drive shaft 7, the main shaft 20, the two conveyor belts and the second drive shaft 8 working together is the same as the working principle of the existing one-to-two transmission device. Other existing cooperative transmission structures that can realize the synchronous rotation of the first drive shaft 7 and the second drive shaft 8 can also be replaced.

[0038] Furthermore, the spindle 20 can also be fitted with a drive nut 17 for manual rotation.

[0039] Specific Implementation Method Eight: This implementation method is a further limitation of Specific Implementation Methods One, Two, Three, Four, Five, Six, or Seven. In this implementation method, the top of the first control plate 4 is provided with an upper limit edge. The upper limit edge is located at the top of the first abutment wall 4-1 and is used to limit the top position of the strip display belt 10-2 during rotation to prevent it from deviating from the original rotation position. Another upper limit edge can also be provided on the convex central control plate 5 and / or the end control plate 6 to cooperate with the first control plate 4 to achieve the process of limiting the top position in multiple positions, which is beneficial to standardizing the entire movement process of the strip display belt 10-2.

[0040] Specific Implementation Method Nine: This implementation method is a further limitation of Specific Implementation Methods One, Two, Three, Four, Five, Six, Seven, or Eight. In this implementation method, a first outward expansion shaft and a second outward expansion shaft are provided between the first control plate 4, the middle control plate 5, and the last control plate 6. The first outward expansion shaft is located between the first control plate 4 and the middle control plate 5, and its bottom end is hinged to the base plate 3. The second outward expansion shaft is located between the middle control plate 5 and the last control plate 6, and its bottom end is hinged to the base plate 3. The outer end of the scroll body 10 passes sequentially through the outer side wall of the first control plate 4, the first outward expansion shaft, the outer side wall of the middle control plate 5, the second outward expansion shaft, and the outer side wall of the last control plate 6 before connecting to the second drive shaft 8.

[0041] In this embodiment, the configuration of the first and second outward expansion hinges is used to expand the path of the extended strip display strip 10-2, thereby enabling the installation of the roll body 10 with a large diameter. This facilitates the use of the roll body 10 with a large diameter and provides an installation position that does not affect the movement path, improving the expandability of the present invention using a roll body 10 and enhancing the continuous durability of the roll body 10 for single use.

[0042] Specific Implementation Method 10: This implementation method is a further limitation of Specific Implementation Methods 1, 2, 3, 4, 5, 6, 7, 8, or 9. In this implementation method, when a sliding belt 10-3 is provided at the bottom of the strip display belt 10-2, the sliding belt 10-3 is horizontally positioned, and its longitudinal cross-sectional shape is U-shaped with the opening of the longitudinal cross-section facing upward. The sliding belt 10-3 wraps around the inner and outer walls of the bottom side of the strip display belt 10-2 along the length direction of the strip display belt 10-2. The bottom plate 3 is provided with a first guide groove 18 and a second guide groove 19 that cooperate with the sliding belt 10-3. The first guide groove 18 is provided between the first control plate 4 and the first drive shaft 7, and the second guide groove 19 is provided between the first control plate 4 and the middle control plate 5. The outer end of the roll body 10 passes through the first guide groove 18, the outer wall of the first control plate 4, the second guide groove 19, the outer wall of the middle control plate 5, and the outer wall of the end control plate 6 in sequence before connecting with the second drive shaft 8.

[0043] Combination Figure 5 , Figure 6 and Figure 10 As shown, in this embodiment, the first guide groove 18 includes a main groove and two forked heads. When the main groove is horizontally set, its longitudinal cross-sectional shape is U-shaped, with the opening of the longitudinal cross-section facing upwards. This provides a placement position for the bottom of the strip display strip 10-2 with the sliding belt 10-3. The two forked heads are respectively connected to both ends of the main groove. The two forked heads are used to limit the strip display strip 10-2 by a certain width, preventing lateral movement. The structure of the second guide groove 19 is the same as that of the first guide groove 18, or it may only be consistent with the structure of the main groove.

[0044] The process of using the Ebbinghaus forgetting curve method or the 147 memory method is as follows:

[0045] The scroll body 10 is fitted onto the first drive shaft 7. After unwinding the outer end of the scroll body 10, it passes sequentially around the first control plate 4, the middle control plate 5, and the last control plate 6 before connecting to the second drive shaft 8. Ensure that the strip display strip 10-2 in the scroll body 10 is taut against the first abutment wall 4-1, the second abutment wall 5-1, and the third abutment wall 6-1. Drive the first drive shaft 7 to ensure that the first abutment wall 4-1 of the first control plate 4 displays the first portion of the strip display strip 10-2. This is the first display of the first portion, meaning it is located in the first opening 9-1 and displayed through the first opening 9-1. After the user has memorized the content, the user can stop using the scroll. After a predetermined time, rotate the first drive shaft 7 again, repeating the above process, so that the user can record the content displayed at the first opening 9-1 through the first opening 9-1. The second and third parts of the scroll body 10 are displayed in the same way as the first part of the scroll body 10 during the first opening 9-1. When the user reads and memorizes the fourth part of the scroll body 10 displayed at the first opening 9-1, the first part of the scroll body 10 is displayed at the second opening 9-2. The user reads and memorizes the content displayed at the first opening 9-1 and the second opening 9-2 again. At this time, the first part of the scroll body 10 is displayed for the second time, with a two-time interval between the first and second displays. Similarly, the first drive shaft 7 is driven further. When the first part of the scroll body 10 is displayed at the third opening 9-3, the first part of the scroll body 10 is displayed for the third time, with a four-time interval between the first and second displays and a two-time interval between the third and second displays. This completes the use of the 1-4-7 memorization method based on this utility model.

[0046] When this utility model is used to achieve review and memory, the process is as follows:

[0047] The scroll body 10 is fitted onto the first drive shaft 7. After the outer end of the scroll body 10 is pulled out, it passes through the first control plate 4, the middle control plate 5 and the last control plate 6 in sequence and is connected to the second drive shaft 8. This ensures that the strip display strip 10-2 in the scroll body 10 is taut against the first abutment wall 4-1, the second abutment wall 5-1 and the third abutment wall 6-1. The first drive shaft 7 and the second drive shaft 8 are driven to rotate synchronously forward or in reverse as needed, so as to repeatedly expose and review the display content of each opening 9 in the strip display strip 10-2.

[0048] This invention can also continuously drive the first drive shaft 7 to realize a one-time continuous review process of the entire content of the strip display strip 10-2 in the already used scroll body 10 through an opening 9.

Claims

1. A double-eccentric shaft type three-opening display tube, characterized in that: The system includes a main cylinder (1), a top cover (2), a bottom plate (3), a first control plate (4), a middle control plate (5), a last control plate (6), a first drive shaft (7), a second drive shaft (8), and a reel body (10). The main cylinder (1) is vertically arranged, and the bottom plate (3) is fixedly connected to the bottom end of the main cylinder (1). The top wall of the bottom plate (3) and the inner circumferential wall of the main cylinder (1) form a placement cavity (11). The top cover (2) is detachably connected to the top of the main cylinder (1). The first control plate (4), the middle control plate (5), and the last control plate (6) are vertically arranged in the placement cavity (11) along the circumferential direction of the main cylinder (1). The bottom ends of the first control plate (4), the middle control plate (5), and the last control plate (6) are all fixedly connected to the bottom plate (3). The distance from one side of the plate (4) near the center control plate (5) to the other side of the center control plate (5) is twice the width of the first control plate (4). The distance from one side of the last control plate (6) near the center control plate (5) to the other side of the center control plate (5) is twice the width of the last control plate (6). The first drive shaft (7) and the second drive shaft (8) are vertically arranged in the placement cavity (11). The scroll body (10) is fitted on the first drive shaft (7). The outer end of the scroll body (10) passes through the outer side wall of the first control plate (4), the outer side wall of the center control plate (5) and the outer side wall of the last control plate (6) in sequence and then connects to the second drive shaft (8). The main cylinder (1) is machined with three openings (9) that correspond one-to-one with the first control plate (4), the center control plate (5) and the last control plate (6).

2. The double-eccentric shaft type three-opening display tube according to claim 1, characterized in that: The outer wall of the first control plate (4) is the first abutment wall (4-1), the outer wall of the middle control plate (5) is the second abutment wall (5-1), and the outer wall of the last control plate (6) is the third abutment wall (6-1). The three openings (9) include the first opening (9-1), the second opening (9-2), and the third opening (9-3). The first opening (9-1), the second opening (9-2), and the third opening (9-3) are all rectangular. The opening area of ​​the first opening (9-1) is matched with the area of ​​the first abutment wall (4-1), the opening area of ​​the second opening (9-2) is matched with the area of ​​the second abutment wall (5-1), and the opening area of ​​the third opening (9-3) is matched with the area of ​​the third abutment wall (6-1).

3. The double-eccentric shaft type three-opening display tube according to claim 2, characterized in that: The roll body (10) includes a first fixed support sleeve (10-1) and a bar display strip (10-2). The bar display strip (10-2) is wound around the first fixed support sleeve (10-1) one turn at a time. The inner end of the bar display strip (10-2) is set on the first fixed support sleeve (10-1). The outer end of the bar display strip (10-2) passes around the first abutment wall (4-1), the second abutment wall (5-1) and the third abutment wall (6-1) and is detachably connected to the second drive shaft (8).

4. A double-eccentric shaft type three-opening display tube according to claim 3, characterized in that: The outer end of the bar display strip (10-2) is fitted with a second fixed support sleeve (13), which is fitted onto the second drive shaft (8). The outer end of the bar display strip (10-2) is detachably connected to the outer wall of the second fixed support sleeve (13).

5. A double-eccentric shaft type three-opening display tube according to claim 3 or 4, characterized in that: The width of the bar display strip (10-2) is set to match the width of the first wall abutment (4-1).

6. A double-eccentric shaft type three-opening display tube according to claim 1, characterized in that: The first drive shaft (7) is located near the first control plate (4), and a first steering shaft (14) is provided on both sides of the first control plate (4); the second drive shaft (8) is located near the last control plate (6), and a second steering shaft (15) is provided on both sides of the last control plate (6), and a third steering shaft (16) is provided on both sides of the central control plate (5).

7. A double-eccentric shaft type three-opening display tube according to claim 1, characterized in that: The lower end of the first drive shaft (7) is hinged to the base plate (3), and the upper end of the first drive shaft (7) is the first power input end, which passes through the upper cover (2) and is located outside the upper cover (2); the lower end of the second drive shaft (8) is hinged to the base plate (3), and the upper end of the second drive shaft (8) is the second power input end, which passes through the upper cover (2) and is located outside the upper cover (2).

8. A double-eccentric shaft type three-opening display tube according to claim 7, characterized in that: The first power input end is connected to a drive nut (17) or a micro motor.

9. A double-eccentric shaft type three-opening display tube according to claim 3, characterized in that: When a sliding strip (10-3) is provided at the bottom of the strip display strip (10-2), the sliding strip (10-3) wraps around the inner and outer walls of the bottom side of the strip display strip (10-2) along the length direction of the strip display strip (10-2). The bottom plate (3) is provided with a first guide groove (18) and a second guide groove (19) that cooperate with the sliding strip (10-3). The first guide groove (18) is located between the first control plate (4) and the first drive shaft (7), and the second guide groove (19) is located between the first control plate (4) and the middle control plate (5). The outer end of the roll body (10) passes through the first guide groove (18), the outer wall of the first control plate (4), the second guide groove (19), the outer wall of the middle control plate (5), and the outer wall of the end control plate (6) in sequence before connecting with the second drive shaft (8).

Images