CN112755508A - Noise reduction system of mute mahjong machine - Google Patents
Noise reduction system of mute mahjong machine Download PDFInfo
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- CN112755508A CN112755508A CN202011562968.5A CN202011562968A CN112755508A CN 112755508 A CN112755508 A CN 112755508A CN 202011562968 A CN202011562968 A CN 202011562968A CN 112755508 A CN112755508 A CN 112755508A
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- 230000030279 gene silencing Effects 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 5
- 230000001174 ascending effect Effects 0.000 claims abstract description 3
- 230000000630 rising effect Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 42
- 239000003638 chemical reducing agent Substances 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 230000008093 supporting effect Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 238000007790 scraping Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000001976 improved effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F9/00—Games not otherwise provided for
- A63F9/20—Dominoes or like games; Mah-Jongg games
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F9/00—Games not otherwise provided for
- A63F9/20—Dominoes or like games; Mah-Jongg games
- A63F2009/205—Mah-jongg games
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Abstract
The invention discloses a noise reduction system of a mute mahjong machine, which comprises a slow descending device, wherein the slow descending device comprises a jacking mechanism for driving a dice tray to ascend and descend, the periphery of the jacking mechanism is provided with a silencing cover synchronously ascending and descending along with the jacking mechanism, the silencing cover comprises an umbrella-shaped part made of rubber materials, the umbrella-shaped part extends from the outer periphery of the jacking mechanism to the outer periphery of a shuffling large tray, and the projection radiuses of the shuffling large tray, a tile falling channel and the umbrella-shaped part in the vertical direction are sequentially increased; the umbrella-shaped part is provided with a mahjong tile receiving position which rises along with the rising of the jacking mechanism to receive mahjong tiles falling from the mahjong tile falling channel, and a mahjong tile pressing position which falls along with the descending of the jacking mechanism to cover the mahjong tile shuffling large plate to press the mahjong tiles and rotate in the circumferential direction under the driving of the friction force between the mahjong tiles and the umbrella-shaped part. The noise reduction cover can reduce or eliminate the noise generated by the mahjong tiles falling into the shuffling large plate directly, and can also reduce or eliminate the noise generated by the mahjong tiles falling and impacting on the shuffling large plate.
Description
Technical Field
The invention belongs to the technical field of mahjong machines, and particularly relates to a noise reduction system of a mute mahjong machine.
Background
In the process that mahjong tiles are pushed into the shuffling large tray from the table top, the mahjong tiles can collide with the supporting structure of the dice tray to generate noise, and the mahjong tiles can generate large noise after falling to the shuffling large tray due to the large fall between the table top and the shuffling large tray; meanwhile, in the process of rotating and shuffling the shuffling big disk, the mahjong tiles on the shuffling big disk are slightly pushed to collide with other mahjong tiles by large impact force due to no vertical pressure applied to the mahjong tiles; this greatly affects the use experience of the player.
In order to eliminate the noise, the chinese utility model patent with publication number CN208193620U discloses a mute shuffling barrel of an automatic mahjong machine, a shuffling large disk is arranged in the shuffling barrel, a scraping strip disk is arranged on the top surface of the shuffling large disk, and a scraping strip disk cover is arranged on the scraping strip disk; the lifting rod penetrates through the centers of the bar scraping plate and the bar scraping plate cover and extends to the shuffling table top above the shuffling large plate, and the top end of the lifting rod is fixedly connected with a dice plate through a bowl support and a bracket; and the periphery of the lifting rod is also sleeved with an elastic cloth sleeve, the top end of the elastic cloth sleeve is fixed in the bracket fastening groove of the bracket through a binding belt, and the bottom end of the elastic cloth sleeve is fixed in the scraping strip wire cover fastening groove of the scraping strip wire cover through the binding belt.
However, the noise reduction effect of the shuffling buckets described above is not significant, mainly due to: (1) no noise reduction measure is arranged at the bowl, and the mahjong tiles still collide with the bowl to generate noise when pushed in; (2) the bottom end of the elastic cloth sleeve only wraps the scraping strip disk cover, and part of the mahjong tiles can directly fall onto the scraping strip disk and the shuffling large disk to generate noise; (3) it is difficult to eliminate or reduce the noise generated by the impact of the mahjong tiles on the shuffling platter.
The Chinese patent application with the publication number of CN111840980A discloses a tile falling and noise reducing method and a mute mahjong machine and a noise reducing wind leaf device applied by the same, wherein the noise reducing wind leaf device comprises a mahjong machine shuffling inner barrel and a noise reducing wind leaf, and the noise reducing wind leaf is arranged on the mahjong machine shuffling inner barrel and is positioned below a tile falling channel of a mahjong machine table surface component; namely, one end of the noise reduction wind vane is arranged on the inner wall of the shuffling inner barrel of the mahjong machine at intervals, and the other end of the noise reduction wind vane points to or/and is close to the center below the tile falling channel; the blades of the noise reduction fan blades are obliquely staggered to form an elastically-supported buffering noise reduction shuffling system, so that the fall of mahjong tiles falling from the tile falling channel is reduced.
The noise reduction fan blade device has the following defects: (1) the noise generated by the mahjong tiles impacting the bowl, the bracket and the lifting rod is difficult to eliminate or reduce; (2) it is difficult to eliminate or reduce the noise generated by the impact of the mahjong tiles on the shuffling platter.
It can be seen that although the noise reduction measures in the existing mahjong machine are thousands of postures, no noise reduction measure exists yet, which can eliminate the problem that the mahjong tiles on the shuffling large plate are slightly pushed to collide with other mahjong tiles with larger impact force to generate larger noise because no pressure in any vertical direction is applied.
Disclosure of Invention
The invention aims to provide a noise reduction system of a mute mahjong machine, wherein a noise reduction cover in the noise reduction system can reduce or eliminate noise generated by directly dropping mahjong tiles into a shuffling large disk, and can also reduce or eliminate noise generated by reversing and impacting the mahjong tiles on the shuffling large disk.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a noise reduction system of a mute mahjong machine comprises a slow descending device, wherein the slow descending device comprises a jacking mechanism for driving a dice disk to ascend and descend, a silencing cover synchronously ascending and descending along with the jacking mechanism is arranged on the periphery of the jacking mechanism, the silencing cover comprises an umbrella-shaped part made of rubber materials, the umbrella-shaped part extends from the outer periphery of the jacking mechanism to the outer periphery of a shuffling large disk, and projection radiuses of a tile falling channel, the umbrella-shaped part and the shuffling large disk in the vertical direction are sequentially increased;
the umbrella-shaped part is provided with a mahjong tile receiving position which rises along with the rising of the jacking mechanism to receive mahjong tiles falling from the mahjong tile falling channel, and a mahjong tile pressing position which falls along with the descending of the jacking mechanism to cover the mahjong tile shuffling large plate to press the mahjong tiles and rotate in the circumferential direction under the driving of the friction force between the mahjong tiles and the umbrella-shaped part.
In the noise reduction system of the mute mahjong machine, the silencing cover is provided with the umbrella-shaped part extending from the periphery of the jacking mechanism to the periphery of the shuffling large plate, and the projection radius of the umbrella-shaped part in the vertical direction is larger than that of the mahjong falling channel in the vertical direction and smaller than that of the shuffling large plate in the vertical direction, so that mahjong tiles on a table surface fall onto the umbrella-shaped part at the tile receiving position after falling from the mahjong falling channel, and then fall onto the periphery of the shuffling large plate from the outer edge of the umbrella-shaped part, the tile falling height difference of the mahjong tiles is reduced, the noise generated by the fact that the mahjong tiles directly fall into the shuffling large plate can be reduced or eliminated, the mahjong tiles directly fall onto the periphery of the shuffling large plate, and the tile arranging efficiency can be improved; when the mahjong tiles rotate, the mahjong tiles are pressed by the umbrella-shaped part from the upper part, so that the tile falling noise and the noise generated by mutual collision of the mahjong tiles can be greatly reduced, and the umbrella-shaped part also greatly isolates the shuffling noise from being upwards transmitted to the upper part of the table top of the mahjong machine; meanwhile, because friction force exists between the umbrella-shaped part and the mahjong tiles, the umbrella-shaped part can rotate along with the shuffling large disc under the driving of the friction force, and the umbrella-shaped part in the rotating state is more favorable for eliminating impact noise generated by the lodging of the mahjong tiles.
In the noise reduction system of the mute mahjong machine, at least one strip-shaped groove which extends in the radial direction and is mutually communicated with both surfaces of the umbrella-shaped part is formed on the umbrella-shaped part, and the outer end of the strip-shaped groove is positioned on the outer peripheral edge of the umbrella-shaped part. After the strip-shaped grooves are formed, mahjong tiles falling onto the umbrella-shaped portion can fall along the outer edge of the umbrella-shaped portion and can also fall from the strip-shaped grooves, and therefore the problem that the mahjong tile pressing effect is poor due to the fact that all the mahjong tiles fall onto the outer edge of the umbrella-shaped portion is avoided.
In the invention, a plurality of fan-shaped parts formed by dividing the strip-shaped grooves still keep the umbrella-shaped appearance, and the adjacent fan-shaped parts do not have the condition of oblique staggering.
In the noise reduction system of the mute mahjong machine, the at least one surface of the umbrella-shaped part is provided with the reinforcing protrusion positioned at the outer edge of the opening of the strip-shaped groove, and the reinforcing protrusion extends from the outer end of the strip-shaped groove to the central through hole of the umbrella-shaped part along the radial direction of the umbrella-shaped part. Because the umbrella-shaped part is made of rubber materials, after the strip-shaped groove is formed, the bearing force of the umbrella-shaped part positioned at the edge of the opening of the strip-shaped groove on the mahjong tile is poor; the reinforcing bulges can improve the pressure resistance of the part, can effectively receive mahjong tiles and prevent the falling mahjong tiles from directly passing through the strip-shaped grooves.
In the noise reduction system of the mute mahjong machine, the reinforcing protrusions are at least arranged on the umbrella surface of the umbrella-shaped part facing to one side of the dice disk so as to slow down the speed of mahjong tiles falling from the strip-shaped grooves to the shuffling large disk. The reinforcing bulges protruding out of the surface of the umbrella-shaped part can also generate certain blocking effect in the rolling process of the mahjong tiles, and further slow down the speed of the mahjong tiles falling from the outer edge of the strip-shaped groove or the umbrella-shaped part.
In the noise reduction system of the mute mahjong machine, the jacking mechanism comprises a lifting rod, and the dice tray is fixedly connected with the lifting rod through a supporting bowl and a bracket in sequence; the silencing cover also comprises a cylindrical part positioned on the periphery of the bracket, an axial limiting piece used for ensuring the synchronous lifting of the silencing cover and the bracket is arranged between the cylindrical part and the bracket, and the umbrella-shaped part is arranged at one end of the cylindrical part facing to the shuffling large plate; the cylindrical part is fixedly provided with a funnel-shaped part at the periphery of the supporting bowl towards one end of the dice tray, and the funnel-shaped part, the cylindrical part and the umbrella-shaped part are coaxially arranged. The silencing cover can completely surround the jacking mechanism, and the possibility of noise caused by mutual collision of mahjong tiles and the jacking mechanism is completely avoided. Preferably, the funnel portion, the cylindrical portion, and the umbrella portion are integrally molded.
In the above noise reduction system of the mute mahjong machine, the axial limiting member comprises an annular groove formed between the bowl and the bracket, one end of the cylindrical part facing the funnel-shaped part is provided with a convex edge embedded into the annular groove, and the convex edge is in circumferential rotation fit with the annular groove. The annular groove naturally formed between the bracket and the supporting bowl can be naturally used for embedding the convex edge, so that the axial limit between the silencing cover and the jacking mechanism is realized; and the circumferential rotation fit between the convex edge and the annular groove enables the silencing cover to rotate along with the shuffling large disc.
The noise reduction system of the mute mahjong machine also comprises a shuffling device, wherein the shuffling device comprises a shuffling large disk and a central shaft seat arranged in the center of the shuffling large disk, the shuffling large disk is rotatably connected with the central shaft seat, the lifting rod penetrates through the center of the central shaft seat, and one end of the lifting rod penetrating through the central shaft seat is fixedly provided with the bracket;
the central shaft seat is also rotatably connected with a card poking device between the shuffling large disc and the silencing cover, the central shaft seat is provided with a planetary gear reducer for realizing transmission between the shuffling large disc and the card poking device, and the planetary gear reducer and the central shaft seat are circumferentially positioned.
In the invention, the shuffling large disc is integrally arranged and is not separately arranged as the lower large disc and the upper large disc, and the planetary gear reducer and the card shifting device are sequentially arranged on the top surface of the shuffling large disc, so that enough installation space is reserved for the planetary gear reducer, and the planetary gear reducer can be directly installed on a central shaft seat, thereby avoiding the abrasion of the shuffling large disc and the card shifting device on the planetary gear reducer or ensuring the abrasion to be negligible; meanwhile, because the stress area between the planetary gear reducer and the central shaft seat is large, the planetary gear reducer can always keep stable position, and the stable and effective transmission between the shuffling large disc and the card poking device is ensured.
In the noise reduction system of the mute mahjong machine, the planetary gear reducer comprises a planet carrier which is circumferentially positioned with the central shaft seat and axially limited, a primary speed reduction transmission pair is arranged between the planet carrier and the shuffling large disk, and a secondary speed reduction transmission pair is arranged between the planet carrier and the shuffling device;
the primary speed reduction transmission pair comprises a primary speed reduction planetary gear rotationally connected to the planet carrier and a power input gear driven by the shuffling large disc to rotate, and the power input gear is meshed with the primary speed reduction planetary gear;
the second-stage reduction transmission pair comprises a second-stage reduction transmission gear which is rotationally connected to the planet carrier and a power output gear which is fixedly arranged on the card shifting device, the second-stage reduction transmission gear is meshed with the power output gear, and the second-stage reduction transmission gear and the first-stage reduction transmission gear are coaxially arranged.
The invention adopts a first-stage reduction transmission pair and a second-stage reduction transmission pair, and the power of the shuffling large disk is transmitted to the card poking device through second-stage reduction, thereby realizing the differential transmission of the card poking device relative to the shuffling large disk. Of course, multiple reduction gearing stages may be designed according to specific needs.
In the noise reduction system of the mute mahjong machine, the planet carrier comprises a planet carrier body with a second center hole, the inner peripheral wall of the second center hole and the center shaft seat are circumferentially positioned, the two ends of the planet carrier body are respectively provided with an outer flanging, and a planet wheel installation space for installing a first-stage reduction planetary gear and a second-stage reduction planetary gear is formed between the two outer flanging. Set up planet wheel installation space between two flanging, then two flanging can fix a position the both ends of one-level reduction planetary gear and second grade reduction planetary gear's center pin, and one-level reduction planetary gear and second grade reduction planetary gear operation are more stable.
In the noise reduction system of the mute mahjong machine, the shuffling large plate and the card shifting device have the same rotation direction;
a third central hole communicated with the second central hole is formed in the center of the planet carrier body, and a first through hole for communicating the third central hole with a planet wheel installation space so that the primary reduction planet gear is meshed with the power input gear is formed in the planet carrier body;
the card shifting device comprises a card shifting seat, the center of the card shifting seat is provided with a fourth central hole for the central shaft seat to pass through, and the power output gear is convexly arranged on the bottom surface of the card shifting seat and is coaxial with the fourth central hole; the top surface of the planet carrier body is concavely provided with an annular avoiding groove for accommodating the power output gear, and the planet carrier body is also provided with a second through hole for communicating the annular avoiding groove with a planet gear mounting space so as to facilitate the meshing of the secondary reduction planet gear and the power output gear;
the periphery of the poker seat is provided with a plurality of poker bars extending to the edge of the shuffling large plate, and the number of the poker bars is less than or equal to four.
The large shuffling disk and the card shifting device rotate in the same direction, and the shuffling noise of the shuffling device is further reduced by reducing the number of card shifting strips.
When the rotation directions of the poker card puller and the shuffling big disc are the same, the power input gear and the power output gear are both external gears or both internal gears; when the two are external gears, the primary reduction planetary gear and the secondary reduction planetary gear are both positioned in the inner rings of the power input gear and the power output gear; the third central hole and the first through hole are arranged to ensure that the first-stage reduction planetary gear is meshed with the power input gear, and the annular avoidance groove and the second through hole are arranged to ensure that the second-stage reduction planetary gear is meshed with the power output gear.
Compared with the prior art, the invention has the beneficial effects that:
(1) in the noise reduction system of the mute mahjong machine, the silencing cover is provided with the umbrella-shaped part extending from the periphery of the jacking mechanism to the periphery of the shuffling large plate, and the projection radius of the umbrella-shaped part in the vertical direction is larger than that of the mahjong falling channel in the vertical direction and smaller than that of the shuffling large plate in the vertical direction, so that mahjong tiles on a table surface fall onto the umbrella-shaped part at the tile receiving position after falling from the mahjong falling channel, and then fall onto the periphery of the shuffling large plate from the outer edge of the umbrella-shaped part, the tile falling height difference of the mahjong tiles is reduced, the noise generated by the fact that the mahjong tiles directly fall into the shuffling large plate can be reduced or eliminated, the mahjong tiles directly fall onto the periphery of the shuffling large plate, and the tile arranging efficiency can be improved; when the mahjong tiles rotate, the mahjong tiles are pressed by the umbrella-shaped part from the upper part, so that the tile falling noise and the noise generated by mutual collision of the mahjong tiles can be greatly reduced, and the umbrella-shaped part also greatly isolates the shuffling noise from being upwards transmitted to the upper part of the table top of the mahjong machine; meanwhile, because friction force exists between the umbrella-shaped part and the mahjong tiles, the umbrella-shaped part can rotate along with the shuffling large disc under the driving of the friction force, and the umbrella-shaped part in the rotating state is more favorable for eliminating impact noise generated by the lodging of the mahjong tiles.
(2) In the invention, the umbrella-shaped part of the silencing cover is also provided with the strip-shaped groove extending in the radial direction, so that mahjong tiles falling onto the umbrella-shaped part can fall along the outer edge of the umbrella-shaped part and can also fall from the strip-shaped groove, and the problem that the mahjong tile pressing effect is poor due to the fact that all the mahjong tiles fall on the outer edge of the umbrella-shaped part is avoided; meanwhile, the opening edge of the strip-shaped groove is also provided with a reinforcing bulge, and the reinforcing bulge not only ensures that the umbrella-shaped part at the opening edge of the strip-shaped groove has better pressure resistance, can effectively bear mahjong tiles and prevents the falling mahjong tiles from directly passing through the strip-shaped groove; meanwhile, the reinforcing protrusions protruding out of the surface of the umbrella-shaped part can also generate a certain blocking effect in the rolling process of the mahjong tiles, and further slow down the speed of the mahjong tiles falling from the outer edge of the strip-shaped groove or the umbrella-shaped part.
(3) In the invention, an axial limiting piece used for ensuring the synchronous lifting of the silencing cover and the bracket is arranged between the cylindrical part of the silencing cover and the bracket, the axial limiting piece comprises an annular groove formed between the supporting bowl and the bracket, one end of the cylindrical part facing the funnel-shaped part is provided with a convex edge embedded into the annular groove, and the convex edge is in circumferential rotation fit with the annular groove. The annular groove naturally formed between the bracket and the supporting bowl can be naturally used for embedding the convex edge, so that the axial limit between the silencing cover and the jacking mechanism is realized; and the circumferential rotation fit between the convex edge and the annular groove enables the silencing cover to rotate along with the shuffling large disc.
(4) In the invention, the shuffling large disc is integrally arranged and is not separately arranged as the lower large disc and the upper large disc, and the planetary gear reducer and the card shifting device are sequentially arranged on the top surface of the shuffling large disc, so that enough installation space is reserved for the planetary gear reducer, and the planetary gear reducer can be directly installed on a central shaft seat, thereby avoiding the abrasion of the shuffling large disc and the card shifting device on the planetary gear reducer or ensuring the abrasion to be negligible; meanwhile, because the stress area between the planetary gear reducer and the central shaft seat is large, the planetary gear reducer can always keep stable position, and the stable and effective transmission between the shuffling large disc and the card poking device is ensured.
(5) In the invention, the shuffling large disc and the card shifting device rotate in the same direction, and the shuffling noise of the shuffling device is further reduced by reducing the number of card shifting strips.
Drawings
FIG. 1 is a schematic structural diagram of a noise reduction system of a mahjong machine according to the present invention;
FIG. 2 is a schematic structural diagram of a noise reduction system of a mahjong machine according to another view angle;
FIG. 3 is a schematic diagram of an explosion structure of the noise reduction system of the mahjong machine according to the present invention;
FIG. 4 is a schematic structural view of the muffling enclosure shown in FIG. 3;
FIG. 5 is a schematic view of the sound-damping cover shown in FIG. 3 from another perspective;
FIG. 6 is a cross-sectional view of the descent control device shown in FIG. 3;
FIG. 7 is an enlarged view of portion B of FIG. 6;
figure 8 is a schematic view of the shuffler apparatus shown in figure 3;
FIG. 9 is an enlarged view of portion A of FIG. 5;
figure 10 is an exploded view of the card shuffling device of figure 8;
FIG. 11 is a schematic structural view of the planetary gear reducer illustrated in FIG. 10;
FIG. 12 is a schematic view of the center axle seat shown in FIG. 10;
FIG. 13 is a schematic view of the card shuffler shown in FIG. 10 from another perspective;
fig. 14 is a schematic view of the planetary gear reducer shown in fig. 10 from another perspective.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Example 1
As shown in fig. 1, 2 and 3, the noise reduction system of a mahjong machine of the present embodiment includes a slow descending device 100 and a shuffling device 200, wherein the slow descending device 100 includes a supporting mechanism 7, and the supporting mechanism 7 includes a lifting rod 71; as shown in fig. 10, the shuffling device 200 comprises a shuffling large disk 1 and a central shaft seat 2 arranged in the center of the shuffling large disk 1, the shuffling large disk 1 is rotatably connected with the central shaft seat 2, a lifting rod 71 is arranged in the center of the central shaft seat 2 in a penetrating way, and a bracket 72, a bowl 73 and a dice disk are fixedly arranged on the lifting rod 71 through the top end of the central shaft seat 2 from bottom to top in sequence; the size of the dice tray is equivalent to the size of a mahjong falling channel (not shown in the figure) formed in the center of the tabletop of the mahjong machine. The dice tray, the supporting bowl 73, the bracket 72 and the lifting rod 71 are all conventional structures in the field, and the description of the embodiment is omitted.
The descent control device 100 of the present embodiment further includes a silencing cover 8, and the silencing cover 8 is fixedly disposed on the periphery of the jacking mechanism 7 and can synchronously lift and lower the jacking mechanism 7. As shown in fig. 3, the noise reduction cover 8 of the present embodiment includes an umbrella portion 81, a cylindrical portion 82, and a funnel portion 83, which are sequentially disposed from bottom to top, the umbrella portion 81, the cylindrical portion 82, and the funnel portion 83 are coaxially disposed and integrally formed, the entire noise reduction cover 8 of the present embodiment is made of a silica gel material, the noise reduction cover 8 surrounds the entire top-supporting mechanism 7, and noise is prevented from being generated by collision between the mahjong tiles on the table top and the top-supporting mechanism 7 when the mahjong tiles fall from the tile falling channel.
As shown in fig. 6 and 7, an axial stopper 9 for ensuring the synchronous lifting of the sound-deadening cap 8 and the bracket 72 is provided between the cylindrical portion 82 and the bracket 72, the axial stopper 9 includes an annular groove 91 formed between the bowl 73 and the bracket 72, and one end of the cylindrical portion 82 facing the funnel portion 83 is provided with a convex edge 92 fitted into the annular groove 91. The convex edge 92 is embedded in the annular groove 91 to prevent axial displacement between the silencing cover 8 and the jacking mechanism 7, and meanwhile, the convex edge 92 is matched with the annular groove 91 in a circumferential rotation mode, so that the silencing cover 8 is convenient to mount, and the silencing cover 8 has the capability of circumferential rotation.
Funnel-shaped portion 83 is then laminated with the bottom surface of holding in the palm bowl 73 and sets up, and the area that funnel-shaped portion 83 covered is bigger, then noise reduction is better.
In this embodiment, the umbrella portion 81 extends from the outer periphery of the ejector mechanism 7 to the outer periphery of the shuffle board, and the projection radii of the shuffle board, the umbrella portion 81, and the shuffle board in the vertical direction are sequentially increased. When the mahjong tiles are required to be shuffled, the silencing cover 8 rises along with the jacking mechanism 7, the umbrella-shaped part 81 is positioned at the tile receiving position, and the mahjong tiles on the table top fall onto the umbrella-shaped part 81 after falling from the tile falling channel, and then fall onto the outer periphery of the shuffling large plate from the outer edge of the umbrella-shaped part 81, so that the tile falling height difference of the mahjong tiles is reduced, the noise generated by the fact that the mahjong tiles directly fall into the shuffling large plate can be reduced or eliminated, and the mahjong tiles directly fall onto the outer periphery of the shuffling large plate, and therefore the tile arranging efficiency can be improved; after all the mahjong tiles fall into the shuffling large plate, the umbrella-shaped part 81 descends along with the jacking mechanism 7 to apply pressure to the mahjong tiles on the shuffling large plate (the umbrella-shaped part 81 is positioned at a tile pressing position), when the shuffling large plate 1 rotates, because the mahjong tiles are pressed by the umbrella-shaped part 81 from the upper part, the noise of tile falling and the noise generated by the mutual collision of the mahjong tiles can be greatly reduced, and the umbrella-shaped part 81 also greatly isolates the shuffling noise from being upwards transmitted to the upper part of the tabletop of the mahjong machine; meanwhile, because friction force exists between the umbrella-shaped part 81 and the mahjong tiles, the umbrella-shaped part 81 can rotate along with the shuffling large disk 1 under the driving of the friction force, and the umbrella-shaped part in the rotating state is more favorable for eliminating impact noise generated by the lodging of the mahjong tiles.
As shown in fig. 4, 5 and 9, in the present embodiment, at least one strip-shaped groove 81a extending radially and penetrating both surfaces of the umbrella-shaped portion 81 is formed on the umbrella-shaped portion 81, and an outer end of the strip-shaped groove 81a is located at an outer peripheral edge of the umbrella-shaped portion 81; a reinforcing protrusion 81b is further arranged on the umbrella surface of the umbrella-shaped portion 81 facing the dice disk, and is positioned at the outer edge of the opening of the strip-shaped groove 81a, and the reinforcing protrusion 81b extends from the outer end of the strip-shaped groove 81a to the central through hole of the umbrella-shaped portion 81 along the radial direction of the umbrella-shaped portion 81; it can be seen that the length of the reinforcing protrusion 81b is greater than the length of the bar-shaped groove 81 a.
After the strip-shaped groove 81a is arranged, mahjong tiles falling on the umbrella-shaped part 81 can fall along the outer edge of the umbrella-shaped part 81 and can also fall from the strip-shaped groove 81a, and the problem that the mahjong tile pressing effect is poor due to the fact that all the mahjong tiles fall on the outer edge of the umbrella-shaped part is avoided. The reinforcing protrusion 81b not only provides the umbrella-shaped portion 81 at the opening edge of the strip-shaped groove 81a with a better pressure resistance, but also provides a certain blocking effect for the mahjong tiles, thereby further slowing down the speed of the mahjong tiles falling from the strip-shaped groove 81 a.
As shown in fig. 10 and 12, in the present embodiment, the central shaft base 2 is formed with a card-dialing shaft base 25, a male screw base 24, a positioning base 23 and a shuffling shaft base 26 in this order from the top end to the bottom end, the outer diameters of the card-dialing shaft base 25, the male screw base 24 and the shuffling shaft base 26 are increased in this order, and the positioning base 23 corresponds to the outer diameter of the shuffling shaft base 26; the card-shifting shaft seat part 25 is used for installing the card-shifting device 3, the card-shifting shaft seat part 26 is used for installing the shuffling large plate 1, and the positioning seat part 23 is used for installing the planetary gear reducer 4 for realizing the differential transmission of the shuffling large plate and the card-shifting device.
As shown in fig. 10, the large shuffling disk 1 has a first central hole 11 in the center, and the large shuffling disk 1 is rotatably connected to the shuffling shaft seat 26 of the central shaft base 2 through a bearing in the first central hole 11. As can be seen from fig. 1, 3 and 10, the shuffle board 1 of the present embodiment includes a tapered portion 12 at the center and a flat plate portion 13 at the outer periphery, and the tapered portion 12 and the flat plate portion 13 are integrally formed.
In the present embodiment, as shown in fig. 2 and 10, the shuffle platter 1 is rotated by the variable speed drive mechanism 5; for a specific structure of the speed-changing driving mechanism 5, please refer to the disclosure of the chinese patent application with publication number CN111282260A, and details of this embodiment are not repeated. In short, the variable speed driving mechanism 5 comprises two transmission gears 51 concentrically arranged and fixedly connected with the bottom surface of the shuffling large disk 1, and driving gears 52 corresponding to the transmission gears 51 one by one, and different combinations of the driving gears 52 and the transmission gears 51 have different speed ratios, so that when the shuffling large disk 1 is driven to rotate by different combinations of the driving gears 52 and the transmission gears 51, the rotating speed of the shuffling large disk 1 is different. As can be seen from figure 2, in the present embodiment, the gear rings of the two transmission gears 51 are oppositely arranged, and the two driving gears 52 are driven by the same shuffling motor 53, and each driving gear 52 and the shuffling motor 53 are in one-way transmission.
As shown in fig. 3 and 10, the card-shifting device 3 is arranged on the top surface of the shuffling large plate 1, the card-shifting device 3 comprises a card-shifting seat 31 which is rotatably connected with the card-shifting shaft seat part 25 of the central shaft seat 2 through a bearing, the card-shifting seat 31 is umbrella-shaped, the center of the card-shifting seat 31 is provided with a fifth central hole 31a which is convenient for installing the card-shifting shaft seat part 25, and the end edge of the flaring end of the umbrella-shaped card-shifting seat 31 is provided with a plurality of card-shifting strips 32. The top surface of the poker seat 31 is also fixedly provided with an end cover 33 at the end part of the central shaft seat 2 through a fastener, and the center of the end cover 33 is only provided with a fourth central hole 33a for the lifting rod 71 to pass through.
In the embodiment, the card poking device 3 is in transmission with the shuffling large disc 1 through the planetary gear reducer 4, a primary speed reduction transmission pair 42 is arranged between the planetary gear reducer 4 and the shuffling large disc 1, and a secondary speed reduction transmission pair 43 is arranged between the planetary gear reducer 4 and the card poking device 3; therefore, the power of the shuffling large disc 1 is transmitted to the card shifting device 3 through the speed reduction of the planetary gear reducer 4, so that the card shifting device 3 and the card shifting device 3 are in differential transmission.
As shown in fig. 11 and 12, in conjunction with fig. 10, the planetary gear reducer 4 includes a carrier 41 circumferentially positioned with the positioning seat 23 of the center shaft seat 2, the carrier 41 includes a carrier body 41a having a second center hole 41b, three protrusions 41c are formed on an inner peripheral wall of the second center hole 41b, and three recessed areas 21 are formed on an outer peripheral wall of the positioning seat 23. When the carrier 41 is mounted on the positioning seat portion 23, the convex portions 41c are fitted into the corresponding concave regions 21, and the circumferential positioning of the carrier 41 is performed.
As can be seen from fig. 11 and 12, each of the protrusions 41c on the planet carrier body 41a includes a radial boss 41ca, and one end of the radial boss 41ca facing the axis of the second central hole 41b is provided with a plurality of radial positioning latches 41 cb; accordingly, each recessed area 21 of the positioning seat 23 includes a radial groove 21a adapted to the radial boss 41ca and a radial positioning slot 21b adapted to the radial positioning latch 41 cb.
When the planet carrier 41 is mounted on the positioning seat portion 23, the radial boss 41ca and the radial groove 21a, the radial positioning latch 41cb and the radial positioning latch groove 21b which are nested form a double circumferential positioning for the planet carrier 41, and meanwhile, the bottom surfaces of the radial groove 21a and the radial positioning latch 41cb naturally form a limit step 22 below the planet carrier 41; and the external thread seat part 24 is provided with a locking seat 6 above the planet carrier 41 in a threaded manner, and the locking seat 6 is matched with the limit step 22 to limit the axial position of the planet carrier 41 on the central shaft seat 2.
As shown in fig. 10, 11 and 14, the carrier body 41a has flanged edges 41d at both ends thereof, and a planet mounting space 44 is formed between the flanged edges 41 d. Three primary reduction planetary gears 42a are uniformly arranged in the planet wheel mounting space 44 in the circumferential direction, and two ends of the central shaft of the three primary reduction planetary gears 42a are respectively in running fit with corresponding outward turned edges 41 d; a second reduction planetary gear 43a is fixedly fitted on the central axis of one of the first reduction planetary gears 42 a.
As shown in fig. 10, a power input gear 42b engaged with each of the first reduction planetary gears 42a is fixed to the top surface of the shuffle platter 1, and the power input gear 42b and the first reduction planetary gears 42a constitute a first reduction gear pair 42. As shown in fig. 7, as seen in combination with fig. 11, the power input gear 42b of the present embodiment is an external gear, and at the time of transmission, the power input gear 42b is located at the inner ring of the primary reduction planetary gear 42 a; in order to facilitate the engagement of the power input gear 42b with the first-stage reduction planetary gear 42a, a third central hole 41e communicated with the second central hole 41b is formed in the center of the planet carrier body 41a, the inner diameter of the third central hole 41e is larger than that of the second central hole 41b, and when the shuffle board 1 and the planetary gear reducer 4 are assembled on the central shaft base 2, the power input gear 42b is positioned in the third central hole 41 e; the carrier body 41a is formed with a first through opening 41f for communicating the third center hole 41e and the planetary wheel mounting space 44 so that the primary reduction planetary gear 42a meshes with the power input gear 42 b.
As shown in fig. 11 and 13, a power output gear 43b engaged with the second reduction planetary gear 43a is integrally formed on the bottom surface of the card-setting base 31, the power output gear 43b is located on the opening outer edge of the fifth central hole 31a, and the power output gear 43b and the second reduction planetary gear 43a constitute a second reduction transmission pair 43. The power output gear 43b of the present embodiment is also an external gear, and during transmission, the power output gear 43b is also located at the inner ring of the secondary reduction planetary gear 43 a; in order to facilitate the meshing transmission between the two gears, an annular avoiding groove 41g for accommodating the power output gear 43b is further concavely formed in the top surface of the planet carrier body 41a, and a second through hole 41h for communicating the annular avoiding groove 41g with the planet wheel mounting space 44 so that the secondary reduction planet gear 43a is meshed with the power output gear 43b is further formed in the planet carrier body 41 a.
Since the power input gear 42b and the power output gear 43b are both external gears, the card pusher 3 rotates in the same direction as the shuffler plate 1 in this embodiment, and the shuffling noise is greatly reduced. To further reduce shuffling noise, the number of poker bars 32 may also be reduced to less than or equal to four.
The working principle of the noise reduction system of the mute mahjong machine in the embodiment is as follows:
when the cards are shuffled, a player operates the dice tray, the jacking mechanism 7 rises to lift the dice tray from a card dropping port on the table top so as to expose a card dropping channel; meanwhile, the silencing cover 8 and the jacking mechanism 7 synchronously ascend to reach the mahjong receiving position; the player pushes the mahjong tiles on the table top into the tile falling channel, under the protection of the funnel-shaped part 83 and the cylindrical part 82, the mahjong tiles do not directly impact the supporting bowl 73 and the bracket 72, and under the support of the umbrella-shaped part 81, the mahjong tiles do not directly fall on the shuffling large plate 1, but fall on the umbrella-shaped part 81 firstly, then fall downwards from the outer edge of the umbrella-shaped part 81 or fall from each strip-shaped groove 81a, and finally fall on the shuffling large plate 1; after all the mahjong tiles fall on the shuffling large tray 1, the jacking mechanism 7 descends to enable the dice tray to return to the tile falling port on the table top again; the silencing cover also descends synchronously along with the jacking mechanism to cover the shuffling large plate 1 to reach the card pressing position;
starting shuffling; in the early stage of shuffling, the variable-speed driving mechanism 5 drives the large shuffling disk 1 to rotate at a low speed, the power input gear 42b distributes the power of the large shuffling disk 1 to the second-stage reduction planetary gear 43a in a speed reduction way through the first-stage reduction transmission pair 42, the power of the second-stage reduction planetary gear is distributed to the card poking device 3 in a speed reduction way through the second-stage reduction transmission pair 43, so that the card poking device 3 rotates in the same direction and at a different speed relative to the large shuffling disk 1, the difference of the rotating speeds of the two is small in the process, and a large number of mahjong tiles on the top surface of the large shuffling disk 1;
in the later shuffling stage, the variable-speed driving mechanism 5 drives the shuffling large disc 1 to rotate rapidly, the power input gear 42b reduces the speed of the power of the shuffling large disc 1 through the first-stage reduction transmission pair 42 and distributes the power to the second-stage reduction planetary gear 43a, the power of the second-stage reduction planetary gear is reduced speed through the second-stage reduction transmission pair 43 and distributes the power to the card poking device 3, so that the card poking device 3 generates homodromous differential rotation relative to the shuffling large disc 1, the difference of the rotating speeds of the two is large in the process, and the situation is adapted to the situation that only a small amount of mahjong tiles are left on the shuffling large disc 1 without high-frequency card pok;
in the rotating process of the shuffling large disk 1, the silencing cover 8 can synchronously rotate under the driving of the friction force between the umbrella-shaped part 81 and the mahjong tiles, and the mahjong tiles on the shuffling large disk are pressed by the umbrella-shaped part 81, so that the mahjong tiles are prevented from falling rapidly after being stirred and being strongly collided with other mahjong tiles to generate noise.
Example 2
The noise reduction system of the mahjong machine is basically the same as that of the embodiment 1, and the difference is that: the power input gear 42b and the power output gear 43b are both internal gears, and during the operation of the planetary gear reducer 4, the power input gear 42b is located on the outer ring of the first-stage reduction planetary gear 42a, and the power output gear 43b is located on the outer ring of the second-stage reduction planetary gear 43a, so that the planet carrier body 41a of the embodiment does not need to be provided with the third central hole 41e, the annular avoiding groove 41g, the first through opening 41f and the second through opening 41 h. Like embodiment 1, the card-pusher 3 and the shuffling platter 1 are rotated in the same direction in this embodiment.
Claims (10)
1. A noise reduction system of a mute mahjong machine comprises a slow descending device (100), wherein the slow descending device (100) comprises a jacking mechanism (7) for driving a dice disk to ascend and descend, and a silencing cover (8) synchronously ascending and descending along with the jacking mechanism (7) is arranged on the periphery of the jacking mechanism (7), and is characterized in that the silencing cover (8) comprises an umbrella-shaped part (81) made of rubber materials, the umbrella-shaped part (81) extends from the periphery of the jacking mechanism (7) to the outer periphery of a shuffling large disk (1), and projection radiuses of a tile falling channel, the umbrella-shaped part (81) and the shuffling large disk (1) in the vertical direction are sequentially increased;
the umbrella-shaped part (81) is provided with a mahjong tile receiving position which rises along with the rising of the jacking mechanism (7) to receive mahjong tiles falling from the mahjong tile falling channel, and a mahjong tile pressing position which covers the large shuffling tray (1) along with the falling of the jacking mechanism (7) to press the mahjong tiles and rotates in the circumferential direction under the driving of the friction force between the mahjong tiles and the umbrella-shaped part.
2. The noise reduction system of a mute mahjong machine according to claim 1,
the umbrella-shaped part (81) is provided with at least one strip-shaped groove (81a) which extends in the radial direction and is mutually communicated with both surfaces of the umbrella-shaped part (81), and the outer end of the strip-shaped groove (81a) is positioned at the outer peripheral edge of the umbrella-shaped part (81).
3. The noise reduction system of a mute mahjong machine as claimed in claim 2, wherein at least one surface of the umbrella-shaped part (81) is provided with a reinforcing protrusion (81b) at the outer edge of the opening of the strip-shaped groove (81a), and the reinforcing protrusion (81b) extends from the outer end of the strip-shaped groove (81a) to the central through hole of the umbrella-shaped part (81) along the radial direction of the umbrella-shaped part (81).
4. The noise reduction system of a mute mahjong machine according to claim 3, wherein at least one surface of the umbrella-shaped part (81) is provided with a reinforcing protrusion (81b) which is arranged at the outer edge of the opening of the strip-shaped groove (81a), and the reinforcing protrusion (81b) extends from the outer end of the strip-shaped groove (81a) to the central through hole of the umbrella-shaped part (81) along the radial direction of the umbrella-shaped part (81).
5. The noise reduction system of the mute mahjong machine according to any one of the claims 1 to 4, wherein the jacking mechanism (7) comprises a lifting rod (71), and the dice disk is sequentially fixedly connected with the lifting rod (71) through a support bowl (73) and a bracket (72);
the silencing cover (8) further comprises a cylindrical part (82) positioned on the periphery of the bracket (72), an axial limiting piece (9) used for ensuring the synchronous lifting of the silencing cover (8) and the bracket (72) is arranged between the cylindrical part (82) and the bracket (72), and the umbrella-shaped part (81) is arranged at one end of the cylindrical part (82) facing the shuffling large disk (1);
one end of the cylindrical part (82) facing the dice tray is fixedly provided with a funnel-shaped part (83) positioned on the periphery of the supporting bowl (73), and the funnel-shaped part (83), the cylindrical part (82) and the umbrella-shaped part (81) are coaxially arranged.
6. The noise reduction system of a silent mahjong machine according to claim 5, wherein the axial limiting member (9) comprises an annular groove (91) formed between the supporting bowl (73) and the bracket (72), and the end of the cylindrical part (82) facing the funnel part (83) is provided with a convex edge (92) embedded in the annular groove (91), and the convex edge (92) is in circumferential rotation fit with the annular groove (91).
7. The noise reduction system of the mute mahjong machine according to claim 5, further comprising a shuffling device (200), wherein the shuffling device (200) comprises a big shuffling tray (1) and a central shaft seat (2) arranged in the center of the big shuffling tray (1), the big shuffling tray (1) is rotatably connected with the central shaft seat (2), the lifting rod (71) penetrates through the center of the central shaft seat, and one end of the lifting rod (71) penetrating through the central shaft seat is fixedly provided with the bracket (72);
the mahjong tile shuffling device is characterized in that the central shaft seat (2) is further rotatably connected with a mahjong tile shifting device (3) between the mahjong tile shuffling large disc (1) and the silencing cover, a planetary gear reducer (4) used for realizing transmission between the mahjong tile shuffling large disc (1) and the mahjong tile shifting device (3) is arranged on the central shaft seat (2), and the planetary gear reducer (4) and the central shaft seat (2) are circumferentially positioned.
8. The noise reduction system of the mute mahjong machine according to claim 7, wherein the planetary gear reducer (4) comprises a planet carrier (41) which is circumferentially positioned and axially limited with the central shaft seat (2), a primary speed reduction transmission pair (42) is arranged between the planet carrier (41) and the shuffling large disk (1), and a secondary speed reduction transmission pair (43) is arranged between the planet carrier (41) and the shuffling device (3);
the primary reduction transmission pair (42) comprises a primary reduction planetary gear (42a) which is rotationally connected with the planet carrier (41), and a power input gear (42b) which is driven by the shuffling large disc (1) to rotate, and the power input gear (42b) is meshed with the primary reduction planetary gear (42 a);
the two-stage reduction transmission pair (43) comprises a two-stage reduction transmission gear (43a) rotationally connected to the planet carrier (41) and a power output gear (43b) fixedly arranged on the card shifting device (3), the two-stage reduction transmission gear (43a) is meshed with the power output gear (43b), and the two-stage reduction transmission gear (43a) and the one-stage reduction transmission gear (42a) are coaxially arranged.
9. The noise reduction system of the mute mahjong machine according to claim 8, wherein the planet carrier (41) comprises a planet carrier body (41a) with a second central hole (41b), the inner peripheral wall of the second central hole (41b) is circumferentially positioned with the central shaft base (2), two ends of the planet carrier body (41a) are provided with flanges (41d), and a planet wheel mounting space (44) for mounting the first-stage reduction planet gear (42a) and the second-stage reduction planet gear (43a) is formed between the flanges (41 d).
10. The noise reduction system of a silent mahjong machine according to claim 9, wherein the shuffling platter (1) and the card puller (3) have the same rotation direction;
a third central hole (41e) communicated with the second central hole (41b) is formed in the center of the planet carrier body (41a), and a first through hole (41f) for communicating the third central hole (41e) with a planet wheel mounting space (44) so that a primary reduction planet gear (42a) is meshed with a power input gear (42b) is formed in the planet carrier body (41 a);
the card shifting device (3) comprises a card shifting seat (31), a sixth central hole for the central shaft seat (2) to pass through is formed in the center of the card shifting seat (31), and the power output gear (43b) is convexly arranged on the bottom surface of the card shifting seat (31) and is coaxially arranged with the sixth central hole; the top surface of the planet carrier body (41a) is concavely provided with an annular avoiding groove (41g) for accommodating a power output gear (43b), and the planet carrier body (41a) is also provided with a second through hole (41h) for communicating the annular avoiding groove (41g) with a planet gear mounting space (44) so as to facilitate the meshing of the secondary reduction planet gear (43a) and the power output gear (43 b);
the periphery of the card shifting seat (31) is provided with a plurality of card shifting strips (32) extending to the edge of the large shuffling tray (1), and the number of the card shifting strips (32) is less than or equal to four.
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Cited By (1)
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|---|---|---|---|---|
| CN113171602A (en) * | 2021-06-17 | 2021-07-27 | 成都雀豪机电设备有限公司 | Noise reduction device and intelligent chess and card table |
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