Scoring device for volleyball competition items

Abstract

The invention relates to a scoring device for volleyball match items, which comprises a scoring box, the scoring box comprises a shell, a cover plate, a grooved wheel mechanism and a number turntable, and the grooved wheel mechanism comprises a grooved wheel, a drive plate and a knob; recorders rotate the drive plate by rotating the knob, the grooved wheel is intermittently controlled by the drive plate to rotate, so that intermittent rotation of the number rotary plate is realized, the cover plate is marked with the position identifier for representing the position on the field corresponding to the edge of the number rotary plate, and the position identifier corresponds to the number slot every time the grooved wheel rotates, so that the number rotary plate can rotate more accurately. Position changes of team members in a competition field are reflected through rotation of the number rotating disc, rapid recognition and judgment of a referee are facilitated, the recording process can be effectively simplified through intermittent rotation, the risk of misoperation can be reduced, competition information is transmitted to the display screen in a linkage mode through the linkage control unit to be displayed, and the competition information is visually known.

Description

Technical Field

[0001] This invention relates to the field of sports event auxiliary devices, specifically to a scoring device for volleyball competitions. Background Technology

[0002] Traditional manual scoreboards are typically fixed to the scorer's table and used primarily in official matches, operated by professionals. With the widespread development of mass sports activities, various portable scoreboards have gradually been introduced into competitions of different levels. Existing portable scoreboards mainly include two types: manual flip-page and electronic display screen. They are generally operated by one member of the referee team to record match scores.

[0003] Volleyball, one of the three major international ball sports, has a history of over 70 years. Air volleyball, a newer sport related to volleyball, also draws its rules from volleyball. A significant difference between volleyball rules and those of other ball sports (such as basketball or football) is that after each point, the scoring team's players must rotate positions on the court according to a predetermined order to ensure that every player has the right to serve. Currently, in matches, the most widely used game recorder typically works with two recorders: one records the score, and the other records other game information, such as initial positions, substitutions, timeouts, and serving rotations. When errors in position or rotation lead to foul judgments, the two scorekeepers need to make a comprehensive judgment. The scorekeeper recording other game information needs to use a high level of expertise to deduce the correct position information on the field from the initial position information in order to accurately and quickly determine whether there is a position error. This is very difficult for novice referees. As a result, disputes over position or rotation often lead to abnormal interruptions in the game, and there is a considerable possibility of misjudgment and omission. This cannot effectively ensure the fair and smooth conduct of the game. Therefore, a new technical solution is proposed to make up for the shortcomings of the existing scoring system and improve the efficiency of position determination and the professionalism of game management. Summary of the Invention

[0004] Based on the above description, the present invention provides a scoring device for volleyball competitions to solve the aforementioned technical problems in the prior art.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A scoring device for volleyball competitions includes a scoring box, which comprises a housing, a cover plate, a grooved wheel mechanism, and a number turntable. The housing and the cover plate form a hollow cavity. The cover plate includes an outer wall and an inner wall facing each other, with the outer wall of the cover plate facing away from the hollow cavity. The number turntable is rotatably mounted on the outer wall of the cover plate; five or six number slots for placing number marks are evenly arranged circumferentially near the edge of the number turntable, and the cover plate is marked with position marks for indicating the position on the field corresponding to the edge of the number turntable; The grooved wheel mechanism includes a grooved wheel, a dial, and a knob. The grooved wheel is rotatably mounted inside the scoring box. The number dial and the grooved wheel are fixed by a fixed shaft. The outer peripheral wall of the grooved wheel is provided with multiple arc-shaped grooves and multiple U-shaped grooves. The dial includes a dial body, a connecting rod, and a pin. The dial body is rotatably mounted inside the hollow cavity. The connecting rod is connected to the dial body, and the pin is connected to the connecting rod. The pin intermittently enters the U-shaped groove with the dial body to drive the grooved wheel to rotate intermittently. Each time the grooved wheel rotates, the position mark corresponds to the number slot. The knob is located on the outer wall of the cover plate and is connected to the dial drive to drive the dial to rotate. A display screen is installed on the outer wall of the cover plate, and a linkage control unit is installed inside the score box. The linkage control unit is used to transmit the competition information to the display screen for display.

[0006] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: The scoring device provided in this application allows the recorder to rotate a dial by turning a knob. The dial intermittently controls the rotation of the slotted wheel, thereby intermittently rotating the number disc. Since the cover plate has position markings corresponding to the edge of the number disc to indicate the player's position on the field, and each rotation of the slotted wheel corresponds to the position markings with the number slots, the rotation of the number disc reflects the changes in the players' positions on the field, facilitating quick identification and judgment by the referee. Furthermore, the intermittent rotation effectively simplifies the recording process and reduces the risk of operational errors. The game information is transmitted to the display screen via a linkage control unit, providing a clear understanding of the game information.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the linkage control unit includes a power module, a main control module, a participant information input module, a player position indicator module, a real-time scoring and statistics input module, and a match data storage module. The power module is connected to the main control module, and the main control module is electrically connected to the participant information input module, the player position indicator module, the real-time scoring and statistics input module, and the match data storage module, respectively. The display screen has a substitution display area, a scoring area, a set area, a team name area, and a position display area. The participant information input module is used to input participant information, substitution information, and initial position information. The player position indicator module and the real-time scoring and statistics input module are both electrically connected to the Geneva mechanism. The player position indicator module changes the initial position information according to a predetermined position change rule when the Geneva mechanism rotates. The real-time scoring and statistics input module updates the score information when the Geneva mechanism rotates. The match data storage module is used to store match information.

[0009] Furthermore, the number turntable is provided with a score column for each number slot. The score column is formed by multiple different scores arranged radially along the number turntable. The number of scores in each score column is the same. The innermost or outermost number in one score column is 0. The scores in multiple score columns that are in the same position radially on the number turntable form a continuous combination of integer numbers along a defined direction. The difference between adjacent scores in the same score column is equal to the number of number slots.

[0010] Furthermore, a zone diagram board and a scoring turntable are rotatably mounted on the fixed shaft. The scoring turntable is located below the number turntable, and the outer ring of the scoring turntable is marked with scores that increase sequentially from 0 along the circumference. The zone diagram board is located above the number turntable, and the zone diagram board has multiple zones according to the competition venue, and the zones correspond to the position markings.

[0011] Furthermore, a ratchet structure is formed on the outer side of the scoring turntable, and a limit steering component is provided in the scoring box. The limit steering component cooperates with the ratchet structure to limit the rotation direction of the scoring turntable.

[0012] Furthermore, the limiting steering assembly includes a lever, a spring, and a limiting pawl. The limiting pawl is pivotally mounted on the outside of the ratchet structure. Both ends of the limiting pawl have limiting teeth that engage with the grooves of the ratchet structure for limiting. Two limiting grooves are formed on the side of the limiting pawl away from the ratchet structure, and a smoothly connected blocking protrusion is formed between the two limiting grooves. The lever abuts against the limiting pawl under the action of the spring. A guide groove is formed on the cover plate, and the lever is movably disposed in the guide groove. Both ends of the guide groove correspond to the two limiting grooves. The lever is disposed in either limiting groove so that the limiting teeth on the corresponding side engage with the ratchet structure for limiting.

[0013] Furthermore, a large gear is connected to the knob, and a small gear is connected to the dial body, with the small gear and the large gear meshing and driving each other.

[0014] Furthermore, the location identifier is represented by a series of numbers from 1 to N, where N is the number of number slots.

[0015] Furthermore, the scoring device includes two scoring boxes, which are connected by hinges to form a foldable structure.

[0016] Furthermore, the two score boxes share a single main control module. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a scoring device for volleyball competitions provided in the first embodiment of the present invention; Figure 2 This is a schematic diagram of the connection structure of the Geneva mechanism in the first embodiment; Figure 3 For relative to Figure 2 A schematic diagram of the connection structure of the Geneva mechanism from another perspective; Figure 4 This is a schematic diagram of the structural distribution on the outer wall of the cover plate in the first embodiment; Figure 5 This is a modular control connection block diagram of one form in an embodiment of the present invention; Figure 6 This is another form of modular control connection block diagram in an embodiment of the present invention; Figure 7 A three-dimensional structural schematic diagram of a scoring device for volleyball competitions provided in the second embodiment of the present invention; Figure 8 A schematic diagram of the structural distribution on the outer wall of the cover plate in the second embodiment; Figure 9 A schematic diagram of the connection structure of the Geneva mechanism in the second embodiment; Figure 10 For relative to Figure 9 A schematic diagram of the connection structure of the Geneva mechanism from another perspective. Detailed Implementation

[0018] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0020] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90° or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0021] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0022] When used here, the singular forms of “a,” “an,” and “ / the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “including / contains” or “having” specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0023] like Figure 1 and Figure 2As shown, this application provides a scoring device for volleyball competitions, which includes a scoring box 10. The scoring box 10 includes a housing 11, a cover plate 12, a grooved wheel mechanism 13, and a number turntable 14. The housing 11 and the cover plate 12 form a hollow cavity. The cover plate 12 includes an outer wall 121 and an inner wall (not shown in the figure) facing each other. The outer wall 121 of the cover plate is away from the hollow cavity. The number turntable 14 is rotatably mounted on the outer wall 121 of the cover plate; in one embodiment of this application, five number slots 141 for placing number marks are evenly arranged circumferentially near the edge of the number turntable 14, and the cover plate 12 is marked with position marks 122 for indicating the position on the field corresponding to the edge of the number turntable 14.

[0024] Among them, combined Figure 3 and Figure 4 As shown, the Geneva mechanism 13 includes a Geneva wheel 131, a dial 132, and a knob 133. The Geneva wheel 131 is rotatably mounted inside the scoring box 10. The number turntable 14 and the Geneva wheel 131 are fixed by a fixed shaft 134. The outer peripheral wall of the Geneva wheel 131 is provided with multiple arc-shaped grooves 13a and multiple U-shaped grooves 13b. The dial 132 includes a dial body 1321, a connecting rod 1322, and a pin 1323. The dial body 1321 is rotatably mounted inside the hollow cavity. The connecting rod 1322 is connected to the dial body 1321, and the pin 1323 is connected to the connecting rod 1322. The pin 1323 intermittently enters the U-shaped groove 13b with the dial body 1321 to drive the Geneva wheel 131 to rotate intermittently.

[0025] In one embodiment of this application (such as in a volleyball game), since the number turntable 14 has 5 number slots 141 on its edge, the included angle between the center lines of two adjacent U-shaped slots 13b is designed to be 72°. Thus, each time the slot wheel 131 rotates, the rotation angle is 72°. If the position mark 122 corresponds to the number slot 141 in the initial position, the two will also correspond to each other each time the slot wheel 131 rotates. The knob 133 is set on the outer wall 121 of the cover plate and is driven and connected to the dial 132 to drive the dial to rotate.

[0026] In a preferred embodiment, a large gear 1331 is connected to the knob 133, and a small gear 1324 is connected to the dial body 1321. The small gear 1324 and the large gear 1331 mesh and drive each other, so that the dial 1321 can be driven to rotate when the knob 133 rotates a small angle, which is convenient for control.

[0027] The outer wall 121 of the cover plate is equipped with a display screen 30, and the scoring box 10 is equipped with a linkage control unit 20. The linkage control unit 20 is used to transmit the competition information to the display screen 30 for display.

[0028] A match is contested by two teams. Therefore, in a preferred embodiment of this application, the scoring device includes two score boxes 10, which are connected by hinges 40 to form a foldable structure. During the match, the two score boxes 10 correspond to two different teams.

[0029] In one optional embodiment of this application, the linkage control unit 20 includes a power module 21, a main control module 22, a participant information input module 23, a field participant position indicator module 24, a real-time scoring and statistics input module 25, and a field data storage module 26. The power module 21 is connected to the main control module 22. The participant information input module 23 is used to input participant information, substitution information, and initial position information. The field participant position indicator module 24 and the real-time scoring and statistics input module 25 are both electrically connected to the Geneva mechanism 13. The field participant position indicator module 24 positions itself according to a predetermined position when the Geneva 131 rotates. The initial position information is changed according to the replacement rules. The real-time scoring and statistics input module 25 updates the scoring information when the groove wheel 131 rotates. The field data storage module 26 is used to store the competition information, such as using a TF memory card or EEPROM memory. The Bluetooth communication module 27 is used to connect with external electronic terminals via Bluetooth. These electronic terminals include, but are not limited to, mobile phones, computers, or tablets. The connection method can be direct Bluetooth transmission of messages by mobile phones, or Bluetooth information transmission through dedicated apps, mini programs, etc. The transmitted information includes real-time field information, participating team information, and competition venue information.

[0030] The main control module 22 is electrically connected to the participant information input module 23, the competition team member position indication module 24, the real-time scoring and statistics input module 25, the competition data storage module 26, and the Bluetooth communication module 27. In the embodiments of this application, the main control module 22 is an STM32F103 MCU module.

[0031] Correspondingly, the display screen 30 is equipped with a substitution display area 31, a scoring area 32, a game area 33, a team name area 34, and a position display area 35, and may also include a pause area.

[0032] Specifically, the substitution display area 31 is used to display the player numbers of the players replaced by the corresponding teams during the match. For example, if player number 3 replaces player number 15 in a substitution, it can be displayed as 3-15. This information is directly entered by the referee in charge of recording, which is convenient for subsequent verification. The scoring zone 32 is used to display the real-time score of the corresponding team. For example, if the score is 0 at the beginning, as the score increases, the real-time scoring and statistics input module 25 updates the score information when the groove wheel 131 rotates, and then displays the real-time score through the scoring zone 32. Modern volleyball games are all based on a multi-set match system, and the set zone 33 is used to display the score of the teams in each set. The timeout zone is used to display the set score of the two teams at each timeout. The team name zone 34 is used to display the name of the corresponding team, which is directly entered by the referee through the player information input module 23. The position display zone 35 is used to display the prescribed position of the players on the court during the serving phase. The relevant information of the prescribed position is provided by the player position indication module 24. The referee can directly compare the displayed prescribed position with the actual position on the court to find unreasonable or incorrect positions, so as to make a correct judgment in a timely manner.

[0033] As a feasible implementation of this application, a score column 14a is provided on the number turntable 14 for each number slot. The score column 14a is formed by multiple different scores arranged radially along the number turntable. The number of scores on each score column 14a is the same. The innermost or outermost number on one of the score columns 14a is 0. The scores on multiple score columns 14a that are in the same radial position on the number turntable form a continuous combination of integer numbers along a defined direction. The difference between adjacent scores on the same score column 14a is equal to the number of number slots 141.

[0034] For example, in a volleyball match, each team has 5 players on the court. The numbered turntable 14 has 5 score columns, 14a arranged clockwise. The innermost number in one of these columns is 0, so the scores on the innermost columns are 0, 1, 2, 3, 4, and the scores on the next innermost columns are 5, 6, 7, 8, 9, and so on. Initially, after a team's players are positioned according to the rules, their numbers are placed sequentially in the corresponding slots 141. The player corresponding to the 0th score column 14a then serves the first point. After a point, the players' positions change, and the knob is rotated, causing the numbered turntable 14 to rotate once. All slots 141 rotate clockwise in sequence. The player corresponding to the 1st score column 14a then serves the second point, and so on. This allows the referee to compare positions with the players in real-time after each rotation of the numbered turntable 14 to check for any errors.

[0035] The position identifiers are represented by consecutive numbers from 1 to N, where N is the number of number slots 141. In this implementation scheme, the position identifiers are 1 to 5, and can be Arabic numerals, Greek numerals, or uppercase Chinese numerals. In this implementation scheme, Greek numerals are used. After each position rotation, the player whose corresponding position identifier is 1 serves the ball.

[0036] As an optional solution, in the embodiments of this application, each of the two scoring boxes 10 can be equipped with a separate main control module 22, such as... Figure 5 As shown; alternatively, the two score boxes 10 can share a single main control module 22. In this case, the linkage control unit 20's player information input module 23, player position indicator module 24, real-time scoring statistics input module 25, and field data storage module 26 are set up as two groups, each corresponding to one of the two participating teams. Each group of modules corresponds to one score box 10, as shown in the diagram. Figure 6 As shown.

[0037] As another feasible implementation of this application, in a volleyball match, the set score is not set on number wheel 14, but in the following manner: Figures 7 to 10 As shown, the number turntable 14 has 6 number slots 141 on its edge, so the angle between the center lines of two adjacent U-shaped slots 13b is designed to be 60°. A scoring turntable 136 is rotatably mounted on a fixed shaft 134, and a zone diagram board 135 is fixedly mounted on it. The scoring turntable 136 is located below the number turntable 14. The outer ring of the scoring turntable 136 is marked with game scores starting from 0 and increasing in value along the circumference. The scoring turntable 136 displays the current game score in a high-brightness display mode. For example, the scoring turntable 136 has an annular groove along its edge, and LED beads are set inside the annular groove. The position of the LED beads corresponds to the position mark of the serve position. During the game, the LED beads are always lit. When the game score is a certain number, the corresponding number on the scoring turntable is rotated to that position to highlight that game score. The zone diagram board 135 is located above the number turntable 14. The zone diagram board 135 has 6 zones according to the game field, and the zones correspond to the position marks 122.

[0038] The above scheme is applicable to scoring and other match information recording in volleyball matches. In a volleyball match, a team has 6 players on the court. In this implementation scheme, after the players of a team take their positions according to the match positioning rules, their numbers are placed sequentially in the corresponding number slots 141. Each time a point is scored, the corresponding knob is rotated, causing the number turntable 14 to rotate once. At this time, all the number slots 141 rotate clockwise once, so that the number of the next position corresponds to the position mark corresponding to the serving position, and so on. In this way, the referee can compare with the players on the court in real time after each rotation of the number turntable 14 to see if there is any position error.

[0039] To prevent the scores from being modified, in the embodiments of this application, a ratchet structure 1361 is formed on the outer side of the scoring turntable 136, and the scoring box 10 is provided with a limit steering component 50. The limit steering component 50 cooperates with the ratchet structure 1361 to limit the rotation direction of the scoring turntable 136.

[0040] Specifically, the limiting steering assembly 50 includes a lever 51, a spring 52, and a limiting pawl 53. The limiting pawl 53 is oscillatingly mounted on the outside of the ratchet structure 1361. Both ends of the limiting pawl 53 are respectively formed with limiting teeth 531 that cooperate with the tooth grooves of the ratchet structure 1361 for limiting. Two limiting grooves 532 are formed on the side of the limiting pawl 53 away from the ratchet structure 1361. A blocking protrusion 533 is formed between the two limiting grooves 532. The lever 51 abuts against the limiting pawl 53 under the action of the spring 52. A guide groove 123 is formed on the cover plate 12. The lever 51 is movably disposed in the guide groove 123. Both ends of the guide groove 123 correspond to the two limiting grooves 532 respectively. The lever 51 is disposed in either limiting groove 532 so that the limiting teeth 531 on the corresponding side cooperate with the ratchet structure 1361 for limiting.

[0041] If a reversal is made, the score wheel 136 will be rotated counterclockwise once to correct the score. This reversal action is linked to the real-time scoring and statistics input module 25 and the match data storage module 26 to update the data on the display screen in real time. This will synchronously trigger updates to the scoring zone 32 and game zone 33, ensuring that the system information remains consistent with the actual match status.

[0042] In summary, the scoring device provided in this application has at least the following advantages: 1) The intermittent rotation of the number slot 141 on the number turntable 14 and the groove wheel mechanism 13 ensures that the number slot 141 and the position mark 122 are precisely aligned after each rotation of the number turntable 14. The referee can directly compare the actual position of the players on the field with the mark position, effectively preventing incorrect positioning and ensuring the execution of the competition rules.

[0043] 2) The knob 133 amplifies the rotational action through the meshing of the large gear 1331 and the small gear 1324. Only a small rotation is needed to drive the dial 132, thereby achieving precise control of the number dial 14, reducing the difficulty of operation and the risk of misoperation.

[0044] 3) The linkage control unit 20 integrates the modules for inputting participant information, indicating location, scoring statistics and data storage, so as to realize the real-time processing and storage of data such as participant information, location changes and score updates, and ensure the integrity and traceability of competition information.

[0045] 4) The display screen has 30 zones that display substitutions, scores, set scores, team names and position information. Each zone has a clear function, which makes it easy for referees, players and spectators to quickly obtain match information and improve the efficiency of information transmission.

[0046] 5) The ratchet structure 1361 of the scoring turntable 136 and the limit steering component 50 restrict its unexpected rotation to prevent the score from being changed by mistake; when a change is needed, the scoring turntable 136 can be adjusted counterclockwise and the display screen data will be updated in conjunction to ensure information consistency.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A scoring device for volleyball competitions, characterized in that, The system includes a scoring box, which comprises a housing, a cover plate, a grooved wheel mechanism, and a number turntable. The housing and the cover plate form a hollow cavity. The cover plate includes an outer wall and an inner wall opposite to each other, with the outer wall of the cover plate facing away from the hollow cavity. The number turntable is rotatably mounted on the outer wall of the cover plate; five or six number slots for placing number marks are evenly arranged circumferentially near the edge of the number turntable, and the cover plate is marked with position marks for indicating the position on the field corresponding to the edge of the number turntable; The grooved wheel mechanism includes a grooved wheel, a dial, and a knob. The grooved wheel is rotatably mounted inside the scoring box. The number dial and the grooved wheel are fixed by a fixed shaft. The outer peripheral wall of the grooved wheel is provided with multiple arc-shaped grooves and multiple U-shaped grooves. The dial includes a dial body, a connecting rod, and a pin. The dial body is rotatably mounted inside the hollow cavity. The connecting rod is connected to the dial body, and the pin is connected to the connecting rod. The pin intermittently enters the U-shaped groove with the dial body to drive the grooved wheel to rotate intermittently. Each time the grooved wheel rotates, the position mark corresponds to the number slot. The knob is located on the outer wall of the cover plate and is connected to the dial drive to drive the dial to rotate. A display screen is installed on the outer wall of the cover plate, and a linkage control unit is installed inside the score box. The linkage control unit is used to transmit the competition information to the display screen for display.

2. The scoring device for volleyball competitions according to claim 1, characterized in that, The linkage control unit includes a power module, a main control module, a participant information input module, a player position indicator module, a real-time scoring and statistics input module, a game data storage module, and a Bluetooth communication module. The power module is connected to the main control module, which is electrically connected to the participant information input module, the player position indicator module, the real-time scoring and statistics input module, and the game data storage module. The display screen has a substitution display area, a scoring area, a game section area, a team name area, and a position display area. The participant information input module is used to input participant information, substitution information, and initial position information. The player position indicator module and the real-time scoring and statistics input module are both electrically connected to the Geneva mechanism. The player position indicator module changes the initial position information according to a predetermined position change rule when the Geneva mechanism rotates. The real-time scoring and statistics input module updates the score information when the Geneva mechanism rotates. The game data storage module is used to store game information, and the Bluetooth communication module is used to establish a Bluetooth data connection with an external electronic terminal.

3. The scoring device for volleyball competitions according to claim 2, characterized in that, The number turntable has score columns for each number slot. Each score column is formed by arranging multiple different scores radially along the number turntable. The number of scores in each score column is the same. The innermost or outermost number in one score column is 0. The scores in multiple score columns that are in the same radial position on the number turntable form a continuous combination of integer numbers along a defined direction. The difference between adjacent scores in the same score column is equal to the number of number slots.

4. The scoring device for volleyball competitions according to claim 2, characterized in that, A zone diagram board and a scoring turntable are rotatably mounted on the fixed shaft. The scoring turntable is located below the number turntable. The outer ring of the scoring turntable is marked with progressively larger scores starting from 0 along the circumference. The scoring turntable displays the current score in a highlighted manner. The zone diagram is positioned above the number turntable. The zone diagram has multiple zones according to the competition venue, and each zone corresponds to a position marker.

5. The scoring device for volleyball competitions according to claim 4, characterized in that, The scoring turntable has a ratchet structure on its outer side, and the scoring box is equipped with a limit steering component. The limit steering component cooperates with the ratchet structure to limit the rotation direction of the scoring turntable.

6. The scoring device for volleyball competitions according to claim 5, characterized in that, The limiting steering assembly includes a lever, a spring, and a limiting pawl. The limiting pawl is pivotally mounted on the outside of the ratchet structure. Each end of the limiting pawl has limiting teeth that engage with the grooves of the ratchet structure for limiting. Two limiting grooves are formed on the side of the limiting pawl away from the ratchet structure, and a smoothly connected blocking protrusion is formed between the two limiting grooves. The lever abuts against the limiting pawl under the action of the spring. A guide groove is formed on the cover plate, and the lever is movably disposed in the guide groove. Each end of the guide groove corresponds to one of the two limiting grooves. The lever is positioned in either limiting groove so that the limiting teeth on the corresponding side engage with the ratchet structure for limiting.

7. The scoring device for volleyball competitions according to claim 6, characterized in that, A large gear is connected to the knob, and a small gear is connected to the dial body. The small gear and the large gear mesh and drive each other.

8. The scoring device for volleyball competitions according to claim 1, characterized in that, The location identifier is represented by a series of numbers from 1 to N, where N is the number of number slots.

9. The scoring device for volleyball competitions according to claims 2-8, characterized in that, The scoring device includes two scoring boxes, which are connected by hinges to form a foldable structure.

10. The scoring device for volleyball competitions according to claim 9, characterized in that, The two scoring boxes share a single main control module.

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