Opinion voting device and method

Abstract

The invention relates to the technical field of voting boxes, in particular to an opinion voting device and method.The device comprises a shell and a hollow ball, a voting opening is formed in the top of the shell, a partition plate is fixedly installed in the shell, and a ball pool, a rotating disc assembly and a ball falling plate are further arranged in the shell; a gear ring is rotatably installed on the inner wall of the ball pool, a transmission rod is rotatably installed in the shell, first gears are installed at the two ends of the transmission rod respectively, the first gear at one end is in meshed connection with the gear ring, and the first gear at the other end is in meshed connection with the rotating disc assembly; the beneficial effects of the present invention are that by setting the positive and negative rotation of the motor, the full disturbance of the hollow ball in the voting stage and the intermittent rotation of the turntable assembly driven in the order reading stage are realized, so that the disc body accurately rotates in a stepping manner, and the time interval is provided for the sequential order reading of workers.

Description

Technical Field

[0001] This invention relates to the field of ballot box technology, specifically to an opinion voting device and method. Background Technology

[0002] In public decision-making, organizational management, and community governance, voting is an important way to achieve democratic participation and collective decision-making. Traditional voting methods are mainly divided into two categories: paper voting and electronic voting. Paper voting is completed by filling out ballots and counting votes manually. Although it has the advantages of being intuitive and traceable, it suffers from problems such as low counting efficiency, susceptibility to errors, high cost, and difficulty in achieving real-time statistics. Electronic voting systems rely on computers or dedicated terminals. Although they can quickly complete data collection and processing, their operation is not transparent and suffers from problems such as program black boxes, risks of data tampering, potential equipment failures, and a lack of public trust in the system's impartiality.

[0003] To improve the efficiency and transparency of the voting process, random sampling techniques based on statistical principles have been gradually introduced into the auxiliary analysis and verification stages of voting systems in recent years. For example, in predicting election results, media outlets or research institutions often use random sampling of polling stations to quickly count the ballots from a small number of stations and combine this with statistical models to make scientific predictions about the overall results. In addition, in the field of election auditing, mechanisms such as risk limit auditing rely on randomly sampling all paper ballots and manually verifying the samples to ensure the accuracy of the electronic vote counting system, thereby controlling costs while ensuring the credibility of the election results.

[0004] However, most existing voting devices only support the collection, storage, and full automatic counting of ballots, lacking technical support for random sampling processes. Furthermore, the injected voting units are prone to clustering or becoming biased within the container, resulting in a lack of randomness in subsequent picking, which violates statistical principles. Summary of the Invention

[0005] The purpose of this invention is to provide an opinion voting device and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A voting device includes a housing and a hollow sphere. The housing has a voting port at its top. A partition is fixedly installed inside the housing, with a ball-dropping port at its center. The housing also contains a ball pool, a turntable assembly, and a ball-dropping plate. The ball-dropping plate is inclined, with one end connected to the turntable assembly. A ball-out outlet is located on one side of the housing, and the other end of the ball-dropping plate extends outward from the outlet. The device also includes a central shaft. A disturbance component is rotatably mounted at one end of the central shaft within the ball pool. A gear ring is rotatably mounted on the inner wall of the ball pool, contacting the disturbance component. A transmission rod is rotatably mounted inside the housing, with first gears mounted at both ends. One end of the first gear meshes with the gear ring, and the other end meshes with the turntable assembly for power transmission. A motor is mounted on the side of the partition near the ball pool, and the motor's output end is connected to the central shaft via a second gear.

[0008] Preferably, the gear ring has a slot on the side near the central shaft, the bottom surface of the slot has a tooth groove, and the inner side surface of the slot has an inclined groove. The disturbance component includes a horizontal rod fixedly installed on the central shaft, an elastic lever fixedly installed at one end of the horizontal rod located in the slot, a sleeve rotatably installed on the horizontal rod, a disturbance rod fixedly installed on the sleeve, and a third gear adapted to the tooth groove fixedly installed at one end of the sleeve located in the slot.

[0009] Preferably, a convex support platform for supporting the gear ring is fixedly installed on the inner wall of the ball pool, and a concave groove adapted to the convex support platform is opened at the bottom of the gear ring, and a rubber pad is fixedly installed on the top surface of the concave groove.

[0010] Preferably, a ball guide tube is fixedly installed at the bottom of the ball pool, and a solenoid valve is installed inside the ball guide tube.

[0011] Preferably, the turntable assembly includes a drive shaft, one end of which is fixedly mounted with a fourth gear that meshes with the first gear, and the other end of which is fixedly mounted with an annular plate. It also includes a disc body, on which a storage groove is provided, and a damping pad is installed on the contact surface between the disc body and the drive shaft.

[0012] Preferably, a wedge-shaped paddle is fixedly installed on the annular plate, a support block is fixedly installed on the inner wall of the outer shell, a limit arm is rotatably installed on the support block, the end of the limit arm away from the support block is hook-shaped, and limit posts are equidistantly installed on the outer wall of the disc; wherein, a torsion spring is provided between the limit arm and the support block, and a limit pin that contacts the inclined surface of the wedge-shaped paddle is fixedly installed on the limit arm.

[0013] Preferably, a first grid is fixedly installed on the partition plate, a diverter plate is fixedly installed at one end of the central axis located outside the ball pool, and a second grid is fixedly installed on the diverter plate. Both the first grid and the second grid are arc-shaped and have the same radius of curvature. The opening directions of the first grid and the second grid are opposite.

[0014] Preferably, the ball-blocking protrusion is provided on the extension section of the ball-dropping plate.

[0015] Preferably, a flip cover adapted to the voting port is rotatably installed inside the voting port, an infrared probe is installed on the outer shell on one side of the voting port, an infrared sensor counter is connected to the lower part of the infrared probe, and a display screen is installed on the surface of the outer shell.

[0016] A method for voting includes the following steps:

[0017] Step 1: Voters select the sample corresponding to their voting symbol based on their own opinion and insert it into the device to complete a single voting operation;

[0018] Step 2: Disturb the samples inside the device and shuffle their order;

[0019] Step 3: Using the sampling method of risk limit audit, a specified number of samples are drawn, and these selected samples are manually counted and verified.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By setting the forward and reverse rotation of the motor, during the voting stage, the central shaft rotates in the reverse direction, causing the disturbance rod to flip inside the ball pool, ensuring that all hollow balls in the ball pool are fully agitated and randomly distributed. During the vote counting stage, the central shaft rotates in the forward direction, and the disturbance component drives the gear ring to rotate. The rotation of the gear ring drives the transmission rod to rotate through the first gear, which in turn drives the turntable assembly meshing with the first gear at the other end of the transmission rod to rotate. When the turntable assembly rotates, the ball storage chambers on its edge pass through the opening area above the ball pool in sequence, randomly picking up a hollow ball that falls into it. As the turntable continues to rotate, the picked-up hollow ball is brought to the upper end and then rolls down onto the ball drop plate. The hollow ball slides down along the inclined ball drop plate and finally rolls out from the ball outlet. Since the ball drop plate extension is equipped with a ball-blocking protrusion, the hollow ball can be temporarily stopped. Supervisors pick up the colored hollow balls and count the votes.

[0022] 2. By intermittently rotating the turntable component, the turntable rotates precisely in a step-by-step manner, providing time intervals for staff to count the votes in sequence. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2This is a partial structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the outer shell of the present invention;

[0026] Figure 4 This is a schematic diagram of the ball pool structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the disturbance element and gear ring structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the inclined groove in the gear ring of the present invention;

[0029] Figure 7 This is a schematic diagram of the turntable assembly structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the infrared probe mounting structure of the present invention.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Outer shell; 101. Voting port; 102. Ball outlet;

[0033] 2. Hollow sphere;

[0034] 3. Partition; 301. Ball drop hole;

[0035] 4. Ball pit; 401. Convex support platform;

[0036] 5. Turntable assembly; 501. Drive shaft; 502. Fourth gear; 503. Annular plate; 504. Wedge-shaped lever; 505. Disc body; 506. Storage slot; 507. Damping pad; 508. Support block; 509. Limiting arm; 510. Limiting post; 511. Torsion spring; 512. Limiting pin;

[0037] 6. Drop plate; 601. Ball-blocking protrusion;

[0038] 7. Central axis;

[0039] 8. Disturbance component; 801. Horizontal bar; 802. Elastic lever; 803. Sleeve; 804. Disturbance rod; 805. Third gear;

[0040] 9. Gear ring; 901. Groove; 902. Tooth groove; 903. Inclined groove; 904. Concave groove; 905. Rubber pad;

[0041] 10. Transmission rod; 11. First gear; 12. Motor; 13. Second gear; 14. Guide tube; 15. First grille; 16. Diverter plate; 17. Second grille; 18. Flip cover; 19. Infrared probe; 20. Infrared sensor counter; 21. Display screen. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example: Figure 1 - Figure 8 As shown, this embodiment provides an opinion voting device, including a housing 1 and a hollow ball 2. The housing 1 is formed by threaded connection of upper and lower parts for easy disassembly and maintenance. A voting port 101 is provided at the top of the housing 1 to receive the hollow ball 2. The hollow ball 2 is a colored hollow ball, with each color representing a voting option. A partition 3 is fixedly installed inside the housing 1, and a ball drop port 301 is provided at the center of the partition 3. The housing 1 also includes a ball pool 4, a turntable assembly 5, and a ball drop plate 6. The ball pool 4 is fixedly connected to the partition 3. The turntable assembly 5 is located below the ball pool 4. The ball drop plate 6 is inclined, and its high end is connected to the turntable assembly 5. A ball outlet 102 is provided on one side of the housing 1, and the other end of the ball drop plate 6 extends out of the ball outlet 102. The upper part of the extended section of the ball drop plate 6... The ball-blocking protrusion 601 is provided to prevent the hollow ball 2 from rolling out. It also includes a central shaft 7. A disturbance element 8 is rotatably installed at one end of the central shaft 7 located in the ball pool 4. When the disturbance element 8 rotates with the central shaft 7, it agitates the hollow ball 2 in the ball pool 4 to achieve full mixing and prevent blockage and segregation. A gear ring 9 is rotatably installed on the inner wall of the ball pool 4. The disturbance element 8 contacts the gear ring 9. A transmission rod 10 is rotatably installed inside the outer shell 1. A first gear 11 is installed at both ends of the transmission rod 10. One end of the first gear 11 is meshed with the gear ring 9, and the other end of the first gear 11 is meshed with the turntable assembly 5 to transmit power. A motor 12 is installed on the side of the partition 3 near the ball pool 4. The output end of the motor 12 is connected to the central shaft 7 through a second gear 13.

[0044] Voters, according to their preferences, insert hollow balls 2 of the corresponding color into the device through the voting port 101 at the top. The hollow balls 2 pass through the ball drop port 301 on the partition 3 and fall into the ball pool 4 below. After all voting is completed, the motor 12 is started and set to rotate forward. The motor 12 drives the central shaft 7 to rotate through the second gear 13. At this time, the disturbance component 8 drives the gear ring 9 to rotate. The rotation of the gear ring 9 drives the transmission rod 10 to rotate through the first gear 11, which in turn drives the first gear 11 at the other end of the transmission rod 10 to mesh. As the turntable assembly 5 rotates, the ball storage chambers on its edge pass through the opening area above the ball pool 4 in sequence, randomly picking up a hollow ball 2 that falls into it. As the turntable continues to rotate, the picked-up hollow ball 2 is carried to the high end and then rolls down onto the ball drop plate 6. The hollow ball 2 slides down along the inclined ball drop plate 6 and finally rolls out from the ball outlet 102. Since the ball drop plate 6 extension is provided with a ball-blocking protrusion 601, the hollow ball 2 can be temporarily stopped. The supervisor picks up the colored hollow ball 2 and announces the vote.

[0045] Reference Figure 4 and Figure 6 The gear ring 9 has a slot 901 on the side near the central shaft 7 to accommodate the transmission component of the disturbance component 8. The bottom surface of the slot 901 has a toothed groove 902, and the side surface of the slot 901 has an inclined groove 903. The disturbance component 8 includes a horizontal rod 801 fixedly installed on the central shaft 7. One end of the horizontal rod 801 located in the slot 901 is fixedly installed with an elastic lever 802. A sleeve 803 is rotatably installed on the horizontal rod 801. A disturbance rod 804 is fixedly installed on the sleeve 803. One end of the sleeve 803 located in the slot 901 is fixedly installed with a third gear 805 that matches the toothed groove 902.

[0046] Furthermore, a convex support platform 401 for supporting the gear ring 9 is fixedly installed on the inner wall of the ball pool 4. A concave groove 904 adapted to the convex support platform 401 is opened at the bottom of the gear ring 9. A rubber pad 905 is fixedly installed on the top surface of the concave groove 904.

[0047] During the voting process, the motor 12 is started and set to reverse, driving the central shaft 7 to rotate. The horizontal rod 801 fixed on it then makes a circular motion. The elastic paddle 802 at the end of the horizontal rod 801 is deformed by the contact of the groove surface of the inclined groove 903. Since the rubber pad 905 is installed in the concave groove 904 at the bottom of the gear ring 9, the gear ring 9 remains stationary. The sleeve 803 meshes with the tooth groove 902 on the inner wall of the gear ring 9 through the third gear 805 at its end, driving the disturbance rod 804 to flip in the ball pool 4, which enhances the stirring effect on the hollow ball 2 and prevents the hollow ball 2 from accumulating or forming a flow dead zone.

[0048] During the vote counting process, the motor 12 rotates forward, and the elastic lever 802 at the end of the horizontal bar 801 is inserted into the inclined groove 903, overcoming the resistance of the rubber pad 905 and driving the gear ring 9 to rotate, thereby voting.

[0049] Furthermore, a ball guide tube 14 is fixedly installed at the bottom of the ball pool 4 to facilitate the hollow ball 2 falling onto the turntable assembly 5. However, in order to prevent the hollow ball 2 that voted first from falling directly into the ball guide tube 14 and affecting the uniformity of the ballot sample, a solenoid valve is installed inside the ball guide tube 14.

[0050] Reference Figure 3 and Figure 7 The turntable assembly 5 includes a horizontally arranged drive shaft 501. One end of the drive shaft 501 is fixedly mounted with a fourth gear 502 that meshes with the first gear 11 and receives power from the drive rod 10. The other end of the drive shaft 501 is fixedly mounted with an annular plate 503. The turntable assembly 5 also includes a disc body 505. The disc body 505 has a storage slot 506, each slot of which can accommodate a single hollow ball 2. A damping pad 507 is installed on the contact surface between the disc body 505 and the drive shaft 501 to provide appropriate rotational resistance and ensure accurate positioning.

[0051] Furthermore, a wedge-shaped paddle 504 is fixedly installed on the annular plate 503, a support block 508 is fixedly installed on the inner wall of the outer shell 1, a limit arm 509 is rotatably installed on the support block 508, the end of the limit arm 509 away from the support block 508 is hook-shaped, and limit posts 510 are equidistantly installed on the outer wall of the disc 505. A torsion spring 511 is provided between the limit arm 509 and the support block 508, and a limit pin 512 that contacts the inclined surface of the wedge-shaped paddle 504 is fixedly installed on the limit arm 509.

[0052] Under the action of the torsion spring 511, the hook-shaped end of the limiting arm 509 hooks onto a limiting post 510 on the disc 505, locking the disc 505 in a stationary position. A placement slot 506 faces the ball drop channel below the ball pool 4, ready to pick up the hollow ball 2. At this time, the drive shaft 501 is always rotating, and the wedge-shaped paddle 504 on the annular plate 503 also rotates accordingly. Its inclined surface gradually contacts and pushes the limiting pin 512, forcing the limiting arm 509 to rotate clockwise around the axis of the support block 508, overcoming the elastic force of the torsion spring 511, and causing its hook-shaped end to disengage from the limiting post 510. Once the limiting arm 509 disengages, the disc 505 is no longer mechanically locked, and under the drive of the drive shaft 501, the disc 505... Starting with the rotation of the drive shaft 501, the hollow ball 2 rolls down to the ball-dropping plate 6 and is finally output from the ball outlet 102. When the disc 505 rotates to the next station, that is, when the next storage slot 506 is aligned with the ball-dropping channel, the wedge-shaped paddle 504 on the annular plate 503 has rotated past the limit pin 512. At this time, the elastic force of the torsion spring 511 is released, driving the limit arm 509 to reset. Its hook-shaped end re-hooks the next limit post 510, precisely locking the disc 505 in the new position. As the annular plate 503 continues to rotate, each wedge-shaped paddle 504 pushes the limit pin 512 in sequence, realizing the cycle of unlocking, rotating, and locking, so that the disc 505 rotates precisely in a step-by-step manner, providing a time interval for the staff to count the votes in sequence.

[0053] Reference Figure 2 A first grille 15 is fixedly installed on the partition plate 3. A diverter plate 16 is fixedly installed at one end of the central axis 7 outside the ball pool 4. A second grille 17 is fixedly installed on the diverter plate 16. Both the first grille 15 and the second grille 17 are arc-shaped and have the same radius of curvature. The opening directions of the first grille 15 and the second grille 17 are opposite.

[0054] When a voter throws the hollow ball 2 into the voting port 101, the hollow ball 2 first lands on the partition 3. As the first grid 15 rotates, it gradually intersects with the second grid 17, and the space between the first grid 15 and the second grid 17 gradually decreases, thereby pushing the hollow ball 2 into the ball drop port 301 and avoiding possible local accumulation.

[0055] Reference Figure 8 A flip cover 18 is rotatably installed inside the voting port 101. An infrared probe 19 is installed on the outer shell 1 on one side of the voting port 101. An infrared sensor counter 20 is connected to the lower part of the infrared probe 19. It is responsible for processing the signal changes sent by the infrared probe 19 and counting. Whenever a hollow ball 2 passes through the voting port 101 and blocks the infrared beam, the infrared sensor counter 20 records once, thereby accurately counting the number of hollow balls 2 that have been thrown. A display screen 21 is installed on the surface of the outer shell 1. The data of the counter can be transmitted to the display screen 21 through the internal circuit for the operator to view in real time.

[0056] A method for voting includes the following steps:

[0057] Step 1: Voting phase, start motor 12 and set motor 12 to reverse;

[0058] Step 2: After identity verification, the voter takes a colored hollow ball 2 representing their opinion from the ball collection area and puts the hollow ball 2 into the device through the voting port 101 at the top. The infrared sensor counter 20 records one entry and displays it on the display screen 21.

[0059] Step 3: The hollow ball 2 first falls on the partition plate 3. During the rotation, the first grid 15 gradually intersects with the second grid 17, and the space between the first grid 15 and the second grid 17 gradually decreases, thus pushing the hollow ball 2 into the ball drop port 301.

[0060] Step 4: The central shaft 7 rotates, and the horizontal rod 801 fixed on it moves in a circular motion. The elastic paddle 802 at the end of the horizontal rod 801 is deformed by the contact with the groove surface of the inclined groove 903. Since the rubber pad 905 is installed in the concave groove 904 at the bottom of the gear ring 9, the gear ring 9 remains stationary. The sleeve 803 meshes with the tooth groove 902 on the inner wall of the gear ring 9 through the third gear 805 at its end, driving the disturbance rod 804 to flip in the ball pool 4, ensuring that all hollow balls 2 in the ball pool 4 are fully agitated and randomly distributed.

[0061] Step 5: During the vote counting stage, the motor 12 is set to rotate forward. The motor 12 drives the central shaft 7 to rotate through the second gear 13. At this time, the disturbance component 8 drives the gear ring 9 to rotate. The rotation of the gear ring 9 drives the transmission rod 10 to rotate through the first gear 11, which in turn drives the turntable assembly 5, which meshes with the first gear 11 at the other end of the transmission rod 10, to rotate. When the turntable assembly 5 rotates, the ball storage cavity on its edge passes through the opening area above the ball pool 4 in sequence and randomly picks up a hollow ball 2 that falls into it. As the turntable continues to rotate, the picked-up hollow ball 2 is brought to the high end and then rolls down onto the ball drop plate 6. The hollow ball 2 slides down along the inclined ball drop plate 6 and finally rolls out from the ball outlet 102. Since the ball drop plate 6 extension is provided with a ball-blocking protrusion 601, the hollow ball 2 can be temporarily stopped. The supervisor picks up the colored hollow ball 2 and counts the votes.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An opinion voting device, comprising a housing (1) and a hollow sphere (2), characterized in that: The outer shell (1) has a voting port (101) at the top. A partition (3) is fixedly installed inside the outer shell (1). A ball drop port (301) is opened at the center of the partition (3). The outer shell (1) also has a ball pool (4), a turntable assembly (5), and a ball drop plate (6). The ball drop plate (6) is inclined. One end of the ball drop plate (6) is connected to the turntable assembly (5). A ball outlet (102) is opened on one side of the outer shell (1). The other end of the ball drop plate (6) extends out of the ball outlet (102). The outer shell (1) also includes a central shaft (7). A disturbance is rotatably installed at one end of the central shaft (7) located inside the ball pool (4). The component (8) has a gear ring (9) rotatably mounted on the inner wall of the ball pool (4). The disturbance component (8) is in contact with the gear ring (9). The outer shell (1) has a transmission rod (10) rotatably mounted inside. The two ends of the transmission rod (10) are respectively equipped with first gears (11). One end of the first gear (11) is meshed with the gear ring (9), and the other end of the first gear (11) is meshed with the turntable assembly (5) to transmit power. The partition (3) has a motor (12) mounted on the side near the ball pool (4). The output end of the motor (12) is connected to the central shaft (7) through a second gear (13).

2. The opinion voting device according to claim 1, characterized in that: The gear ring (9) has a slot (901) on the side near the central shaft (7), a tooth groove (902) is formed on the bottom surface of the slot (901), and an inclined groove (903) is formed on the side surface of the slot (901). The disturbance component (8) includes a horizontal rod (801) fixedly installed on the central shaft (7). An elastic lever (802) is fixedly installed at one end of the horizontal rod (801) located in the slot (901). A sleeve (803) is rotatably installed on the horizontal rod (801). A disturbance rod (804) is fixedly installed on the sleeve (803). A third gear (805) that matches the tooth groove (902) is fixedly installed at one end of the sleeve (803) located in the slot (901).

3. The opinion voting device according to claim 2, characterized in that: The inner wall of the ball pool (4) is fixedly installed with a convex support platform (401) for supporting the gear ring (9). The bottom of the gear ring (9) is provided with a concave groove (904) that is adapted to the convex support platform (401). A rubber pad (905) is fixedly installed on the top surface of the concave groove (904).

4. The opinion voting device according to claim 1, characterized in that: A ball guide tube (14) is fixedly installed at the bottom of the ball pool (4), and a solenoid valve is installed inside the ball guide tube (14).

5. The opinion voting device according to claim 1, characterized in that: The turntable assembly (5) includes a drive shaft (501), one end of which is fixedly mounted with a fourth gear (502) that meshes with the first gear (11), and the other end of which is fixedly mounted with an annular plate (503). It also includes a disc body (505), on which a storage groove (506) is provided, and a damping pad (507) is installed on the contact surface between the disc body (505) and the drive shaft (501).

6. The opinion voting device according to claim 5, characterized in that: A wedge-shaped paddle (504) is fixedly installed on the annular plate (503), a support block (508) is fixedly installed on the inner wall of the outer shell (1), a limit arm (509) is rotatably installed on the support block (508), the end of the limit arm (509) away from the support block (508) is hook-shaped, and limit posts (510) are equidistantly installed on the outer wall of the disc (505). A torsion spring (511) is provided between the limiting arm (509) and the support block (508), and a limiting pin (512) that contacts the inclined surface of the wedge-shaped paddle (504) is fixedly installed on the limiting arm (509).

7. The opinion voting device according to claim 1, characterized in that: A first grille (15) is fixedly installed on the partition (3). A diverter plate (16) is fixedly installed at one end of the central shaft (7) outside the ball pool (4). A second grille (17) is fixedly installed on the diverter plate (16). Both the first grille (15) and the second grille (17) are arc-shaped and have the same radius of curvature. The opening directions of the first grille (15) and the second grille (17) are opposite.

8. The opinion voting device according to claim 1, characterized in that: The ball-blocking protrusion (601) is provided on the extension section of the ball-dropping plate (6).

9. A voting device according to claim 1, characterized in that: A flip cover (18) adapted to the voting port (101) is rotatably installed inside it. An infrared probe (19) is installed on the outer shell (1) on one side of the voting port (101). An infrared sensor counter (20) is connected to the lower part of the infrared probe (19). A display screen (21) is installed on the surface of the outer shell (1).

10. A method for voting on opinions, employing the voting device according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Voters select the sample corresponding to their voting symbol based on their own opinion and insert it into the device to complete a single voting operation; Step 2: Disturb the samples inside the device and shuffle their order; Step 3: Using the sampling method of risk limit audit, a specified number of samples are drawn, and these selected samples are manually counted and verified.

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