CN112807669B - Noise reduction system of mahjong machine - Google Patents
Noise reduction system of mahjong machine Download PDFInfo
- Publication number
- CN112807669B CN112807669B CN202011558235.4A CN202011558235A CN112807669B CN 112807669 B CN112807669 B CN 112807669B CN 202011558235 A CN202011558235 A CN 202011558235A CN 112807669 B CN112807669 B CN 112807669B
- Authority
- CN
- China
- Prior art keywords
- shuffling
- umbrella
- shaped part
- gear
- card
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000030279 gene silencing Effects 0.000 claims abstract description 41
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 230000000630 rising effect Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 43
- 239000003638 chemical reducing agent Substances 0.000 claims description 28
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 238000007790 scraping Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Food-Manufacturing Devices (AREA)
- Transmission Devices (AREA)
Abstract
The utility model discloses a noise reduction system of a mahjong machine, which comprises a descent control device, wherein the descent control 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 which synchronously ascends and descends along with the jacking mechanism, the silencing cover comprises an umbrella-shaped part extending from the periphery of the jacking mechanism to the periphery of a shuffling large tray, and projection radiuses of a card falling channel, the umbrella-shaped part and the shuffling large tray in the vertical direction are sequentially increased; the umbrella-shaped part is provided with a card receiving position which rises along with the rising of the jacking mechanism to slow down the speed reduction of the mahjong pieces and a card pressing position which covers the shuffling large tray along with the falling of the jacking mechanism to press the mahjong pieces. When shuffling, the mahjong pieces on the tabletop fall onto the umbrella-shaped part at the card receiving position, and then roll off from the umbrella-shaped part onto the shuffling large tray, so that the falling noise is eliminated or reduced; in the shuffling process, because the mahjong tiles are subjected to the pressure from the umbrella-shaped part above, not only is the shuffling noise greatly reduced, but also the shuffling noise is isolated from being transmitted upwards to the upper part of the tabletop.
Description
Technical Field
The utility model belongs to the technical field of mahjong machines, and particularly relates to a noise reduction system of a 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 jacking structure of the dice tray to generate noise, and the mahjong tiles can generate larger noise after falling to the shuffling large tray due to larger drop between the table top and the shuffling large tray; meanwhile, in the process of rotating and shuffling the large shuffling tray, the mahjong tiles on the large shuffling tray are slightly pushed to collide with other mahjong tiles with larger impact force due to the fact that no pressure in any vertical direction is applied; this greatly affects the player's experience.
In order to eliminate the noise, chinese patent publication No. CN208193620U discloses a mute shuffling barrel of an automatic mahjong machine, wherein a shuffling large tray is arranged in the shuffling barrel, a scraping tray is arranged on the top surface of the shuffling large tray, and a scraping tray cover is arranged on the scraping tray; the lifting rod penetrates through the centers of the scraping disc and the scraping disc cover and extends to a shuffling table top above the shuffling large disc, and the top end of the lifting rod is fixedly connected with a dice disc through a bowl 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 a bracket fastening groove of the bracket through a binding belt, and the bottom end of the elastic cloth sleeve is fixed in a scraping strip disc cover fastening groove of the scraping strip disc cover through the binding belt.
However, the above-mentioned shuffling barrel has no obvious noise reduction effect, and the main reason is that: (1) The support bowl is not provided with noise reduction measures, and the mahjong tiles still collide with the support bowl to generate noise when pushed in; (2) The bottom end of the elastic cloth sleeve only wraps the strip scraping disc cover, and part of mahjong tiles can directly fall onto the strip scraping disc and the shuffling large disc to generate noise; (3) It is difficult to eliminate or reduce noise generated by the mutual impact of the mahjong tiles on the shuffling tray.
The Chinese patent application with the publication number of CN111840980A discloses a tile falling noise reduction method, a mute mahjong machine and a noise reduction fan device applied by the tile falling noise reduction method, wherein the noise reduction fan device comprises a mahjong machine tile shuffling inner barrel and noise reduction fan blades, and the noise reduction fan blades are arranged on the mahjong machine tile shuffling inner barrel and are positioned below a tile falling channel of a mahjong machine desktop assembly; namely, one end of the noise reduction fan 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 fan points to or/and is close to the center below the mahjong falling channel; the blades of each noise reduction fan blade are obliquely staggered to form an elastically-supported buffering noise reduction system for reducing the drop of mahjong tiles falling from the tile falling channel.
The noise reduction fan blade device has the following defects: (1) The noise generated by the mahjong tile striking the bowl, the bracket and the lifting rod is difficult to eliminate or reduce; (2) It is difficult to eliminate or reduce noise generated by the mutual impact of the mahjong tiles on the shuffling tray.
It can be seen that the noise reduction measures in the existing mahjong machine are in a state of all-around, there is no noise reduction measure that can eliminate any vertical compression of the tiles on the shuffling tray, the mahjong tiles are slightly pushed to collide with other mahjong tiles with larger impact force, so that larger noise is generated.
Disclosure of Invention
The utility model aims to provide a noise reduction system of a mahjong machine, wherein a noise reduction cover in the noise reduction system not only can reduce and eliminate or reduce noise generated by mahjong tiles falling into a shuffling tray directly, but also can eliminate and reduce noise generated by mahjong tiles falling into the shuffling tray.
In order to achieve the above object, the present utility model has the following technical scheme:
the noise reduction system of the mahjong machine comprises a slow descending device, wherein the slow descending device comprises a jacking mechanism for driving a dice tray to ascend and descend, a noise reduction cover which ascends and descends synchronously with the jacking mechanism is arranged on the periphery of the jacking mechanism, the noise reduction cover comprises an umbrella-shaped part, the umbrella-shaped part extends from the periphery of the jacking mechanism to the periphery of a large shuffling tray, and the projection radius of a shuffling tray, a shuffling falling channel, the umbrella-shaped part and the projection radius of the large shuffling tray in the vertical direction are sequentially increased;
the umbrella-shaped part is provided with a card receiving position which rises along with the rising of the jacking mechanism to slow down the speed reduction of the mahjong tiles and a card pressing position which is covered on the shuffling large tray along with the falling of the jacking mechanism to press the mahjong tiles.
In the noise reduction system of the mahjong machine, the noise reduction cover is provided with the umbrella-shaped part extending from the outer periphery of the jacking mechanism to the outer periphery of the large shuffling tray, and as the projection radius of the umbrella-shaped part in the vertical direction is larger than the projection radius of the mahjong falling channel in the vertical direction and smaller than the projection radius of the large shuffling tray in the vertical direction, after the mahjong pieces on the tabletop fall from the mahjong falling channel, the mahjong pieces firstly fall onto the umbrella-shaped part positioned at the playing position and then roll down from the outer edge of the umbrella-shaped part to the outer periphery of the large shuffling tray, thereby reducing the height difference of the mahjong pieces, reducing and eliminating or reducing the noise generated by the direct falling of the mahjong pieces into the large shuffling tray, and further improving the mahjong arranging efficiency because the mahjong pieces directly fall onto the outer periphery of the large shuffling tray; after all mahjong pieces fall into the big shuffling tray, the umbrella-shaped part applies pressure to the mahjong pieces on the big shuffling tray along with the descending of the jacking mechanism, when the big shuffling tray rotates, the umbrella-shaped part can be fixed or can rotate, and because the mahjong pieces are subjected to the pressure from the umbrella-shaped part above, not only the falling noise and the noise generated by the mutual collision of the mahjong pieces can be greatly reduced, but also the umbrella-shaped part also greatly isolates the upward transmission of the shuffling noise to the upper part of the table top of the mahjong machine.
In the noise reduction system of the mahjong machine, the umbrella-shaped part is made of rubber materials;
the umbrella-shaped part is provided with at least one strip-shaped groove which extends in the radial direction and is communicated with two sides of the umbrella-shaped part, and the outer end of the strip-shaped groove is positioned at the outer periphery of the umbrella-shaped part. After the strip-shaped grooves are formed, mahjong tiles falling onto the umbrella-shaped parts not only can fall along the outer edges of the umbrella-shaped parts, but also can fall from the strip-shaped grooves, so that poor tile pressing effect caused by that all mahjong tiles fall on the outer edges of the umbrella-shaped parts is avoided.
In the utility model, a plurality of sector parts formed by dividing the strip-shaped grooves still maintain umbrella-shaped appearance, and adjacent sector parts do not have the condition of oblique staggering.
In the mahjong machine noise reduction system, at least one surface of the umbrella-shaped part is provided with the reinforcing protrusion at the outer edge of the opening of the strip-shaped groove, and the reinforcing protrusion radially extends from the outer end of the strip-shaped groove to the central through hole of the umbrella-shaped part along the umbrella-shaped part. Because the umbrella-shaped part is made of rubber materials, after the strip-shaped groove is formed, the supporting force of the umbrella-shaped part positioned at the edge of the opening of the strip-shaped groove on the mahjong pieces is poor; the reinforcing protrusions can improve the pressure resistance of the part, and can effectively receive mahjong pieces, so that the fallen mahjong pieces are prevented from directly passing through the strip-shaped grooves. In the noise reduction system of the mahjong machine, the reinforcing protrusions are at least arranged on the umbrella surface of the umbrella-shaped part facing one side of the dice tray so as to slow down the speed of the mahjong tiles falling from the strip-shaped grooves to the shuffling large tray. The strengthening protrusions protruding from the surface of the umbrella-shaped part can also generate a certain blocking effect in the rolling process of the mahjong pieces, so that the falling speed of the mahjong pieces from the strip-shaped grooves or the outer edges of the umbrella-shaped parts is further slowed down.
In the noise reduction system of the mahjong machine, the jacking mechanism comprises a lifting rod, and the dice tray is fixedly connected with the lifting rod through a support bowl and a bracket in sequence; the silencing cover also comprises a cylindrical part positioned at 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 the shuffling large disc; the funnel-shaped part positioned at the periphery of the bowl is fixedly arranged at one end of the cylindrical part, which faces the dice tray, and the funnel-shaped part, the cylindrical part and the umbrella-shaped part are coaxially arranged. Therefore, the silencing cover can completely surround the jacking mechanism, and the possibility of noise generated by mutual collision of mahjong pieces and the jacking mechanism is completely eradicated. Preferably, the funnel portion, the cylindrical portion and the umbrella portion are integrally formed.
The mahjong machine noise reduction system also comprises a shuffling device, wherein the shuffling device comprises a shuffling large disc and a central shaft seat arranged in the center of the shuffling large disc, the shuffling large disc is rotationally 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 rotationally connected with a card poking device positioned between the shuffling large disc and the silencing cover, and 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;
the silencing cover and the card shifter are mutually driven; or the silencing cover is driven by friction force between the mahjong pieces and the umbrella-shaped part to rotate circumferentially; alternatively, the muffler cover maintains a constant circumferential position.
In the utility model, the shuffling large disc is integrally arranged, the shuffling large disc is not separately arranged as a lower large disc and an upper large disc, and the planetary gear reducer and the card pulling 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, the planetary gear reducer can be directly installed on a central shaft seat, and the abrasion of the planetary gear reducer caused by the operation of the shuffling large disc and the card pulling device is avoided or is negligible; meanwhile, as the stress area between the planetary gear reducer and the central shaft seat is large, the planetary gear reducer can always keep stable positions, and stable and effective transmission between the shuffling large disc and the card pulling device is ensured.
In the rotation process of the mahjong tile poking device and the mahjong tile shuffling large disc, the silencing cover can receive power from the mahjong tile poking device to rotate, can be driven to rotate only by friction force between mahjong tiles and the umbrella-shaped part, and can also keep the circumferential position unchanged (namely, can not rotate); preferably, the silencing cover can rotate, and the silencing cover in rotation is more beneficial to eliminating or reducing noise generated by the falling or impacting of mahjong tiles in the tile stirring process; and the power is saved by being linked with the card pulling device.
In the mahjong machine noise reduction system, the planetary gear reducer comprises a planetary carrier which is circumferentially positioned with the central shaft seat and axially limited, a primary speed reduction transmission pair is arranged between the planetary carrier and the shuffling large disc, and a secondary speed reduction transmission pair is arranged between the planetary carrier and the poker machine;
the primary speed reduction transmission pair comprises a primary speed reduction planetary gear which is rotationally connected to the planet carrier, and a power input gear which is driven by the shuffling large disc to rotate, and the power input gear is meshed with the primary speed reduction planetary gear;
the secondary speed reduction transmission pair comprises a secondary speed reduction planetary gear which is rotatably connected to the planet carrier, and a power output gear which is fixedly arranged on the card shifter, wherein the secondary speed reduction planetary gear is meshed with the power output gear, and the secondary speed reduction planetary gear and the primary speed reduction planetary gear are coaxially arranged.
The utility model adopts the primary speed reduction transmission pair and the secondary speed reduction transmission pair, and the power of the shuffling large tray is transmitted to the card shifter through the secondary speed reduction, thereby realizing the differential transmission of the card shifter relative to the shuffling large tray. Of course, multiple reduction drives may be designed according to specific needs.
In the mahjong machine noise reduction system, the planet carrier comprises a planet carrier body with a second center hole, the inner peripheral wall of the second center hole is circumferentially positioned with the center shaft seat, two ends of the planet carrier body are respectively provided with an outward flanging, and a planet wheel installation space for installing a primary reduction planet gear and a secondary reduction planet gear is formed between the two outward flanging. Planet wheel installation space is set up between two outward flanges, then two outward flanges can fix a position the both ends of the center pin of one-level reduction planetary gear and second grade reduction planetary gear, and one-level reduction planetary gear and second grade reduction planetary gear operation is more stable.
In the noise reduction system of the mahjong machine, the silencing cover and the tile shifter are mutually driven, and the shuffling large tray, the tile shifter and the silencing cover have the same rotation direction;
the center of the planet carrier body is also provided with a third center hole communicated with the second center hole, and the planet carrier body is provided with a first through hole used for communicating the third center hole with a planet wheel installation space so that the primary reduction planet gear is meshed with the power input gear;
the card pulling device comprises a card pulling seat, the center of the card pulling seat is provided with a fourth center hole for the central shaft seat to pass through, and the power output gear is convexly arranged on the bottom surface of the card pulling seat and is coaxially arranged with the fourth center hole; the top surface of the planet carrier body is concavely provided with an annular avoidance groove for accommodating the power output gear, and the planet carrier body is also provided with a second through hole which is communicated with the annular avoidance groove and the planet gear installation space so that the secondary reduction planet gear is meshed with the power output gear;
a synchronous transmission part is arranged between the top surface of the card poking seat and the silencing cover;
the outer periphery of the card poking seat is provided with a plurality of card poking strips extending towards the edge of the shuffling large tray, and the number of the card poking strips is less than or equal to four.
The big shuffling tray, the card poking device and the silencing cover rotate in the same direction, and the number of card poking strips is reduced, so that the shuffling noise of the shuffling device is further reduced.
When the card poking device and the shuffling large disc rotate in the same direction, the power input gear and the power output gear are both external gears or are both internal gears; when the two gears are external gears, the primary reduction planetary gear and the secondary reduction planetary gear are both positioned at 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 primary 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 secondary reduction planetary gear is meshed with the power output gear.
In the noise reduction system of the mahjong machine, the synchronous transmission piece comprises a funnel-shaped gear ring seat, the flaring end of the gear ring seat is connected with the inner Zhou Bigu of the cylindrical part, and the narrow opening end of the gear ring seat extends towards the periphery of the lifting rod; one side of the gear ring seat facing the bracket is abutted against the bracket, and one side of the gear ring seat facing away from the bracket is fixedly provided with a driven outer gear ring; a driving annular gear meshed with the driven outer gear ring is arranged at the top end opening of the fourth central hole;
or the synchronous transmission piece comprises an annular gear ring seat, the outer peripheral side of the gear ring seat is connected with the inner Zhou Bigu of the cylindrical part, the gear ring seat is provided with a driven inner gear ring, and the top surface of the card shifting seat is fixedly provided with a driving outer gear ring meshed with the driven inner gear ring; one end of the gear ring seat, which faces the bracket, is abutted against the bracket.
Compared with the prior art, the utility model has the beneficial effects that:
(1) In the noise reduction system of the mahjong machine, the noise reduction cover is provided with the umbrella-shaped part extending from the outer periphery of the jacking mechanism to the outer periphery of the large shuffling tray, and as the projection radius of the umbrella-shaped part in the vertical direction is larger than the projection radius of the mahjong falling channel in the vertical direction and smaller than the projection radius of the large shuffling tray in the vertical direction, after the mahjong pieces on the tabletop fall from the mahjong falling channel, the mahjong pieces firstly fall onto the umbrella-shaped part positioned at the playing position and then roll down from the outer edge of the umbrella-shaped part to the outer periphery of the large shuffling tray, thereby reducing the height difference of the mahjong pieces, reducing and eliminating or reducing the noise generated by the direct falling of the mahjong pieces into the large shuffling tray, and further improving the mahjong arranging efficiency because the mahjong pieces directly fall onto the outer periphery of the large shuffling tray; after all mahjong pieces fall into the big shuffling tray, the umbrella-shaped part applies pressure to the mahjong pieces on the big shuffling tray along with the descending of the jacking mechanism, when the big shuffling tray rotates, the umbrella-shaped part can be fixed or can rotate, and because the mahjong pieces are subjected to the pressure from the umbrella-shaped part above, not only the falling noise and the noise generated by the mutual collision of the mahjong pieces can be greatly reduced, but also the umbrella-shaped part also greatly isolates the upward transmission of the shuffling noise to the upper part of the table top of the mahjong machine.
(2) In the utility model, the umbrella-shaped part of the silencing cover is also provided with the radial extending strip-shaped groove, so that mahjong tiles falling onto the umbrella-shaped part can fall along the outer edge of the umbrella-shaped part and can fall from the strip-shaped groove, thereby avoiding poor tile pressing effect caused by that all mahjong tiles fall on the outer edge of the umbrella-shaped part; meanwhile, the edge of the opening of the strip-shaped groove is also provided with a reinforcing protrusion, so that the umbrella-shaped part at the edge of the opening of the strip-shaped groove has better compressive resistance, and can effectively receive mahjong pieces, and the fallen mahjong pieces are prevented 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 pieces, so that the falling speed of the mahjong pieces from the strip-shaped grooves or the outer edges of the umbrella-shaped parts is further slowed down.
(3) In the utility model, the shuffling large disc is integrally arranged, the shuffling large disc is not separately arranged as a lower large disc and an upper large disc, and the planetary gear reducer and the card pulling 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, the planetary gear reducer can be directly installed on a central shaft seat, and the abrasion of the planetary gear reducer caused by the operation of the shuffling large disc and the card pulling device is avoided or is negligible; meanwhile, as the stress area between the planetary gear reducer and the central shaft seat is large, the planetary gear reducer can always keep stable positions, and stable and effective transmission between the shuffling large disc and the card pulling device is ensured.
(4) In the utility model, the silencing cover can receive the power from the card poking device to rotate, can be driven to rotate only by the friction force between the mahjong pieces and the umbrella-shaped part, and can also keep the circumferential position unchanged (namely not rotate); preferably, the silencing cover can rotate, and the silencing cover in rotation is more beneficial to eliminating or reducing noise generated by the falling or impacting of mahjong tiles in the tile stirring process; and the power is saved by being linked with the card pulling device.
(5) In the utility model, the big shuffling tray, the card poking device and the silencing cover are arranged to rotate in the same direction, and the number of card poking strips is further reduced, so that the shuffling noise of the shuffling device is further reduced.
Drawings
FIG. 1 is a schematic diagram of a noise reduction system for a mahjong machine according to the present utility model;
FIG. 2 is a schematic diagram of a noise reduction system of a mahjong machine according to the present utility model in another view angle;
FIG. 3 is a schematic diagram of an exploded structure of a noise reduction system of a mahjong machine according to the present utility model;
FIG. 4 is a schematic view of the muffler cover shown in FIG. 3;
FIG. 5 is a schematic view of the muffler cover shown in FIG. 3 in another view;
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 card shuffling device shown in figure 3;
FIG. 9 is an enlarged view of portion A of FIG. 5;
fig. 10 is an exploded view of the card shuffling device of fig. 8;
FIG. 11 is a schematic view of the configuration of the planetary gear reducer shown 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 shifter 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;
FIG. 15 is a second structural schematic view of the muffler cover shown in FIG. 3;
figure 16 is a schematic view of a second construction of the card shuffling device shown in figure 3;
FIG. 17 is a cross-sectional view of a descent control device having the sound attenuating cap of FIG. 15;
fig. 18 is an enlarged view of a portion C of fig. 17;
FIG. 19 is a third structural schematic view of the sound attenuating cap shown in FIG. 3;
figure 20 is a schematic view of a third construction of the card shuffling device shown in figure 3;
FIG. 21 is a cross-sectional view of a descent control device having the sound attenuating cap of FIG. 19;
fig. 22 is an enlarged view of a portion D in fig. 21.
Detailed Description
The technical scheme of the utility model is further described in detail below with reference to the attached drawings and the detailed description.
Example 1
As shown in fig. 1, 2 and 3, the noise reduction system of the mahjong machine of the embodiment comprises a slow descent device 100 and a shuffling device 200, wherein the slow descent device 100 comprises a jacking mechanism 7, and the jacking mechanism 7 comprises a lifting rod 71; as shown in fig. 10, the shuffling device 200 includes a shuffling tray 1 and a central shaft seat 2 disposed in the center of the shuffling tray 1, the shuffling tray 1 is rotatably connected with the central shaft seat 2, a lifting rod 71 is disposed in the center of the central shaft seat 2 in a penetrating manner, and a bracket 72, a bowl 73 and a dice tray are sequentially and fixedly installed from bottom to top on the lifting rod 71 penetrating the top end of the central shaft seat 2; the size of the dice tray is equivalent to that of a tile falling channel (not shown in the figure) arranged at the center of a table top of the mahjong machine. The dice tray, the bowl 73, the bracket 72 and the lifting rod 71 are all conventional structures in the art, and will not be described in detail in this embodiment.
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 outer periphery of the jacking mechanism 7, so that the jacking mechanism 7 can be lifted and lowered synchronously. As shown in fig. 3, the silencing cover 8 of this embodiment includes an umbrella-shaped portion 81, a cylindrical portion 82 and a funnel-shaped portion 83 which are sequentially disposed from bottom to top, the umbrella-shaped portion 81, the cylindrical portion 82 and the funnel-shaped portion 83 are coaxially disposed and integrally formed, the silencing cover 8 of this embodiment is integrally made of a silica gel material, and the silencing cover 8 encloses the entire jacking mechanism 7, so that noise generated by collision between mahjong tiles on a table surface and the jacking mechanism 7 when the mahjong tiles fall from a tile falling channel is avoided.
As shown in fig. 6 and 7, an axial limiter 9 for ensuring synchronous lifting and lowering of the muffler cover 8 and the bracket 72 is provided between the cylindrical portion 82 and the bracket 72, the axial limiter 9 includes an annular groove 91 formed between the bracket bowl 73 and the bracket 72, and one end of the cylindrical portion 82 facing the funnel portion 83 has a convex edge 92 fitted into the annular groove 91. The engagement of the ledge 92 with the circumferential groove prevents axial displacement between the sound attenuating cap 8 and the jacking mechanism 7, but the ability of the sound attenuating cap 8 to maintain circumferential rotation will be more conducive to installation of the sound attenuating cap 8.
The funnel-shaped part 83 is attached to the bottom surface of the bowl 73, and the area covered by the funnel-shaped part 83 is larger, so that the noise reduction effect is better.
In this embodiment, the umbrella-shaped portion 81 extends from the outer periphery of the jacking mechanism 7 to the outer periphery of the large shuffling tray, and the projection radii of the card falling path, the umbrella-shaped portion 81 and the large shuffling tray in the vertical direction become larger in order. When shuffling is required, the silencing cover 8 rises along with the jacking mechanism 7, the umbrella-shaped part 81 is positioned at a card receiving position, mahjong pieces on a tabletop fall from a card falling channel and firstly fall onto the umbrella-shaped part 81, and then fall onto the outer periphery of a large shuffling tray from the outer edge of the umbrella-shaped part 81, so that the height difference of the mahjong pieces is reduced, noise generated when the mahjong pieces fall into the large shuffling tray directly can be reduced or reduced, and the mahjong pieces fall onto the outer periphery of the large shuffling tray directly, so that the card arranging efficiency can be improved; after all mahjong pieces fall into the big shuffling tray, the umbrella-shaped part 81 applies pressure to the mahjong pieces on the big shuffling tray along with the descending of the jacking mechanism 7 (the umbrella-shaped part 81 is positioned at a card pressing position), when the big shuffling tray rotates, the umbrella-shaped part 81 can be fixed or can rotate, and because the mahjong pieces are subjected to the pressure from the umbrella-shaped part 81 above, not only the falling noise and the noise generated by the mutual collision of the mahjong pieces can be greatly reduced, but also the umbrella-shaped part 81 also greatly isolates the upward transmission of the shuffling noise to the upper part of the table top of the mahjong machine.
As shown in fig. 4, 5 and 9, in the present embodiment, at least one radially extending bar-shaped groove 81a penetrating each other with both sides of the umbrella-shaped part 81 is formed on the umbrella-shaped part 81, and the outer end of the bar-shaped groove 81a is located at the outer periphery of the umbrella-shaped part 81; the umbrella surface of the umbrella-shaped part 81 facing to one side of the dice tray is also provided with a reinforcing protrusion 81b positioned at the outer edge of the opening of the strip-shaped groove 81a, and the reinforcing protrusion 81b radially extends from the outer end of the strip-shaped groove 81a to the central through hole of the umbrella-shaped part 81 along the umbrella-shaped part 81; it can be seen that the length of the reinforcing protrusion 81b is longer than the length of the bar-shaped groove 81 a.
After the strip-shaped grooves 81a are formed, mahjong tiles falling onto the umbrella-shaped parts 81 not only fall along the outer edges of the umbrella-shaped parts 81, but also fall from the strip-shaped grooves 81a, so that poor tile pressing effect caused by that all mahjong tiles fall on the outer edges of the umbrella-shaped parts is avoided. The reinforcing protrusions 81b not only enable the umbrella-shaped part 81 at the opening edge of the strip-shaped groove 81a to have better pressure resistance, but also have a certain blocking effect on the mahjong pieces, and further slow down the falling speed of the mahjong pieces from the strip-shaped groove 81 a.
As shown in fig. 10 and 12, in the present embodiment, the center shaft seat 2 is formed with a card pulling shaft seat 25, an external thread seat 24, a positioning seat 23 and a shuffling shaft seat 26 in order from top to bottom, the outer diameters of the card pulling shaft seat 25, the external thread seat 24 and the shuffling shaft seat 26 are increased in order, and the positioning seat 23 is equivalent to the outer diameter of the shuffling shaft seat 26; wherein, dial the tablet axle seat 25 and be used for installing and dial the tablet 3, shuffle axle seat 26 is used for installing and shuffle the big dish 1, and location seat 23 is used for installing and is used for realizing the planetary gear reducer 4 of the differential transmission of big dish of shuffling and dial.
As shown in fig. 10, the center of the large shuffling tray 1 has a first center hole 11, and in this first center hole 11, the large shuffling tray 1 is rotatably connected to a shuffling shaft seat 26 on the center shaft seat 2 via a bearing. As can be seen from fig. 1, 3 and 10, the shuffling tray 1 of this embodiment includes a tapered portion 12 at the center and a flat portion 13 at the outer ring, the tapered portion 12 being integrally formed with the flat portion 13.
As shown in fig. 2 and 10, in this embodiment, the shuffling large tray 1 is rotated by a variable speed driving mechanism 5; the specific structure of the variable speed driving mechanism 5 is disclosed in the chinese patent application publication No. CN111282260a, and the description of this embodiment is omitted. In short, the variable speed driving mechanism 5 includes two transmission gears 51 fixedly connected to the bottom surface of the large shuffling tray 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 large shuffling tray 1 is rotated by the different combinations of the driving gears 52 and the transmission gears 51, the rotation speed of the large shuffling tray 1 is different. As can be seen from fig. 2, in this embodiment, the gear rings of the two transmission gears 51 are disposed opposite to each other, and the two driving gears 52 are driven by the same shuffling motor 53, and each driving gear 52 is unidirectionally driven by the shuffling motor 53.
As shown in fig. 3 and 10, the top surface of the shuffling large tray 1 is provided with a card pulling device 3, the card pulling device 3 comprises a card pulling seat 31 rotatably connected with a card pulling shaft seat portion 25 of a central shaft seat 2 through a bearing, the card pulling seat 31 is umbrella-shaped, a fifth central hole 31a which is convenient for installing the card pulling shaft seat portion 25 is formed in the center of the card pulling seat 31, and a plurality of card pulling strips 32 are arranged at the edge of the flaring end of the umbrella-shaped card pulling seat 31. The top surface of the playing card holder 31 is also fixedly provided with an end cover 33 at the end of the central shaft seat 2 by a fastener, and the center of the end cover 33 is only provided with a fourth central hole 33a which is convenient for the lifting rod 71 to pass through.
In the embodiment, the card pulling device 3 is driven by a planetary gear reducer 4 and a card shuffling large disc 1, a primary reduction driving pair 42 is arranged between the planetary gear reducer 4 and the card shuffling large disc 1, and a secondary reduction driving pair 43 is arranged between the planetary gear reducer 4 and the card pulling device 3; so that the power of the shuffling large disc 1 is transmitted to the card shifter 3 through the planetary gear reducer 4 in a speed reducing way, and the card shifter 3 are in differential transmission.
As shown in fig. 11 and 12, in combination with fig. 10, the planetary gear reducer 4 includes a carrier 41 circumferentially positioned with the positioning seat portion 23 of the center shaft seat 2, the carrier 41 includes a carrier body 41a having a second center hole 41b, three projections 41c are formed on an inner peripheral wall of the second center hole 41b, and three recess areas 21 adapted thereto are formed on an outer peripheral wall of the positioning seat portion 23. When the carrier 41 is mounted on the positioning seat 23, the protruding portions 41c are fitted into the corresponding recessed areas 21, forming circumferential positioning of the carrier 41.
As can be seen in fig. 11 and 12, each of the projections 41c of the planet carrier body 41a includes a radial boss 41ca, and the radial boss 41ca has a plurality of radial positioning latches 41cb at an end facing the axis of the second central hole 41 b; correspondingly, each concave area 21 of the positioning seat 23 comprises a radial groove 21a matched with the radial boss 41ca and a radial positioning clamping groove 21b matched with the radial positioning clamping tooth 41 cb.
When the planet carrier 41 is mounted on the positioning seat 23, the nested radial boss 41ca and radial groove 21a, radial positioning latch 41cb and radial positioning latch 21b form a double circumferential positioning of the planet carrier 41, while the bottom surfaces of the radial groove 21a and radial positioning latch 41cb naturally form a limit step 22 under the planet carrier 41; and the locking seat 6 above the planet carrier 41 is arranged on the external thread seat 24 in a threaded manner, and the locking seat 6 cooperates with the limiting step 22 to limit the axial position of the planet carrier 41 on the central shaft seat 2.
As shown in fig. 10 and 11 and 14, the planet carrier body 41a is provided at both ends with turned-out rims 41d, and a planet wheel mounting space 44 is formed between the turned-out rims 41 d. Three primary reduction planetary gears 42a are uniformly arranged in the inner circumference of the planetary gear installation space 44, and two ends of a central shaft of each primary reduction planetary gear 42a are respectively in running fit with corresponding flanging 41 d; one of the primary reduction planets 42a is also fixedly coupled to a secondary reduction planet 43a.
As shown in fig. 10, a power input gear 42b meshed with each primary reduction planetary gear 42a is fixed to the top surface of the large shuffling tray 1, and the power input gear 42b and the primary reduction planetary gears 42a constitute a primary reduction gear pair 42. As shown in fig. 7 in combination with fig. 11, the power input gear 42b of the present embodiment is an external gear, and the power input gear 42b is located at the inner ring of the primary reduction planetary gear 42a in transmission; in order to facilitate the engagement of the power input gear 42b with the primary reduction planetary gear 42a, the center of the planet carrier body 41a is further formed with a third center hole 41e communicating with the second center hole 41b, the third center hole 41e having an inner diameter larger than that of the second center hole 41b, and the power input gear 42b being located in the third center hole 41e when the large shuffling tray 1 and the planetary gear reducer 4 are both assembled to the center hub 2; the carrier body 41a is formed with a first through-hole 41f for communicating the third center hole 41e and the planetary gear installation 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, the bottom surface of the card holder 31 is integrally formed with a power output gear 43b engaged with the secondary reduction planetary gear 43a, the power output gear 43b being located at the opening outer edge of the fifth center hole 31a, the power output gear 43b and the secondary reduction planetary gear 43a constituting the secondary reduction gear pair 43. The power output gear 43b of the present embodiment is also an external gear, and the power output gear 43b is also positioned at the inner ring of the secondary reduction planetary gear 43a at the time of transmission; in order to facilitate the engagement transmission of the two, the top surface of the planet carrier body 41a is further concavely provided with an annular avoidance groove 41g for accommodating the power output gear 43b, and the planet carrier body 41a is further formed with a second through hole 41h for communicating the annular avoidance groove 41g with the planet wheel installation space 44 so that the secondary reduction planet gear 43a is engaged with the power output gear 43 b.
Since the power input gear 42b and the power output gear 43b are both external gears, in this embodiment, the card skimmer 3 rotates in the same direction as the shuffling tray 1, and shuffling noise is greatly reduced. To further reduce shuffling noise, the number of playing bars 32 may also be reduced to four or less.
As shown in fig. 3, 4, 5, 6, 7, 8 and 10, the sound-deadening cover 8 and the card-playing device 3 of the present embodiment are driven by a synchronous driving member 10. The synchronous transmission member 10 comprises a ring gear seat 101, the outer peripheral side of the ring gear seat 101 is connected with the inner Zhou Bigu of the cylindrical part 82, the ring gear seat 101 is provided with a driven ring gear 102, and the top surface of the playing card shifting seat 31 is fixedly provided with a driving outer ring gear 103 meshed with the driven ring gear 102; meanwhile, the end of the ring gear seat 101 facing the carrier 72 collides with the carrier 72.
The working principle of the noise reduction system of the mahjong machine is as follows:
when shuffling is needed, a player operates the dice trays, and the jacking mechanism 7 ascends to lift the dice trays from the card falling port of the tabletop so as to expose the card falling channel; simultaneously, the silencing cover 8 and the jacking mechanism 7 ascend synchronously to reach the license plate receiving position; the mahjong tiles on the table top are pushed into the tile falling channel by a player, the mahjong tiles cannot directly strike the supporting bowl 73 and the bracket 72 under the protection of the funnel-shaped part 83 and the cylindrical part 82, and the mahjong tiles cannot directly fall onto the large shuffling tray 1 under the bearing of the umbrella-shaped part 81, but fall onto the umbrella-shaped part 81 firstly, then roll downwards from the outer edge of the umbrella-shaped part 81 or roll from each strip-shaped groove 81a, and finally fall onto the large shuffling tray 1; after all mahjong pieces fall onto the shuffling large tray 1, the jacking mechanism 7 descends, so that the dice tray returns to the mahjong piece falling port of the tabletop again; the silencing cover also descends synchronously along with the jacking mechanism to cover the shuffling large disc 1 to reach the card pressing position;
starting shuffling; in the front shuffling stage, the variable speed driving mechanism 5 drives the large shuffling tray 1 to rotate slowly, the power input gear 42b distributes the power of the large shuffling tray 1 to the secondary reduction planetary gear 43a in a speed reducing manner through the primary reduction transmission pair 42, and the power of the secondary reduction planetary gear is distributed to the poker machine 3 in a speed reducing manner through the secondary reduction transmission pair 43, so that the poker machine 3 rotates in the same direction and at a differential speed relative to the large shuffling tray 1, and the difference of the rotational speeds of the two is small in the process, so that a large number of mahjong tiles on the top surface of the large shuffling tray 1 can be shifted in time;
in the later shuffling period, the variable speed driving mechanism 5 drives the large shuffling tray 1 to rotate rapidly, the power input gear 42b distributes the power of the large shuffling tray 1 to the secondary reduction planetary gear 43a in a speed reducing manner through the primary reduction transmission pair 42, and the power of the secondary reduction planetary gear is distributed to the poker machine 3 in a speed reducing manner through the secondary reduction transmission pair 43, so that the poker machine 3 rotates in the same direction and at a different speed relative to the large shuffling tray 1, and the rotating speed difference between the two is larger in the process, which is suitable for the situation that only a small amount of mahjong pieces are left on the large shuffling tray 1 without high-frequency poker;
the silencing cover 8 is linked with the tile shifter through the synchronous transmission piece 10, and in the tile shifting process of the tile shifter, the umbrella-shaped part 81 of the silencing cover 8 applies pressure to the mahjong tiles on the shuffling tray, so that the phenomenon that the mahjong tiles are rapidly inverted after being shifted and then are strongly impacted with other mahjong tiles to generate noise is avoided.
Example 2
The noise reduction system of the mahjong machine has basically the same structure as that of the embodiment 1, and is different from the noise reduction system only in the synchronous transmission member 10 between the noise reduction cover 8 and the playing card 3. As shown in fig. 15, 16, 17 and 18, the synchronous transmission member 10 of the present embodiment includes a ring gear seat 101 having a funnel shape, a flared end of the ring gear seat 101 is connected to the inner Zhou Bigu of the cylindrical portion 82, and a narrow opening end of the ring gear seat 101 extends toward the outer periphery of the lifting lever 71; the side of the gear ring seat 101 facing the bracket 72 is abutted against the bracket 72, and a driven outer gear ring 104 is fixedly arranged on the side of the gear ring seat 101 facing away from the bracket 72; a driving ring gear 105 engaged with the driven ring gear 104 is provided at the top end opening of the fourth center hole 33a.
Example 3
The noise reduction system of the mahjong machine has basically the same structure as that of the embodiment 1, and is different only in that a synchronous transmission member 10 is not arranged between the silencing cover 8 and the playing card 3. As shown in fig. 19, 20, 21 and 22, the rotation of the silencing cover 8 is only driven by the friction force between the umbrella-shaped part 81 and the mahjong tiles in the process that the silencing cover 8 is in the card pressing position.
Example 4
The noise reduction system of the mahjong machine of this embodiment is basically the same as embodiment 1, embodiment 2 or embodiment 3, except that: the power input gear 42b and the power output gear 43b are both internal gears, and in the running process of the planetary gear reducer 4, the power input gear 42b is located at the outer ring of the primary reduction planetary gear 42a, and the power output gear 43b is located at the outer ring of the secondary reduction planetary gear 43a, so that the third central hole 41e, the annular avoidance groove 41g, the first through hole 41f and the second through hole 41h are not required to be provided on the planet carrier body 41a in this embodiment. In this embodiment, the card shooter 3 and the large shuffling tray 1 are rotated in the same direction as in embodiment 1.
Claims (10)
1. The noise reduction system of the mahjong machine comprises a descent control device (100), wherein the descent control device (100) comprises a jacking mechanism (7) for driving a dice disc to ascend and descend, and a silencing cover (8) which ascends and descends synchronously 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), the umbrella-shaped part (81) extends from the periphery of the jacking mechanism (7) to the periphery of a shuffling large disc (1), and a card falling channel, the projection radius of the umbrella-shaped part (81) and the projection radius of the shuffling large disc (1) in the vertical direction are sequentially increased;
the umbrella-shaped part (81) is provided with a mahjong receiving position which rises along with the rising of the jacking mechanism (7) to receive mahjong tiles falling from the tile falling channel and a mahjong pressing position which falls along with the jacking mechanism (7) to cover the large shuffling tray (1) so as to press the mahjong tiles;
the umbrella-shaped part (81) is made of rubber materials;
the noise reduction system of the mahjong machine also comprises a shuffling device (200), wherein the shuffling device (200) comprises a shuffling large disc (1) and a central shaft seat (2) arranged in the center of the shuffling large disc (1);
the central shaft seat (2) is also rotationally connected with a card poking device (3) positioned between the shuffling large disc (1) and the silencing cover (8), the silencing cover (8) and the card poking device (3) are mutually driven, the shuffling large disc is integrally arranged, and the non-sub-division is arranged into a lower large disc and an upper large disc;
or the silencing cover (8) is driven to circumferentially rotate by friction force between the mahjong pieces and the umbrella-shaped part (81).
2. The noise reduction system of the mahjong machine as claimed in claim 1, wherein at least one strip-shaped groove (81 a) extending in the radial direction and communicated with both sides of the umbrella-shaped part (81) is formed on the umbrella-shaped part (81), and the outer end of the strip-shaped groove (81 a) is positioned at the outer periphery of the umbrella-shaped part (81).
3. The noise reduction system of the mahjong machine as claimed in claim 2, wherein a reinforcing protrusion (81 b) is arranged on at least one surface of the umbrella-shaped part (81) and positioned at the outer edge of the opening of the strip-shaped groove (81 a), and the reinforcing protrusion (81 b) extends from the outer end of the strip-shaped groove (81 a) to the central through hole of the umbrella-shaped part (81) along the radial direction of the umbrella-shaped part (81).
4. A mahjong machine noise reduction system as claimed in claim 3, wherein said reinforcing protrusions (81 b) are at least on the canopy of the side of the umbrella (81) facing the dice tray to slow down the mahjong tile falling from the strip grooves (81 a) to the shuffling tray (1).
5. The noise reduction system of the mahjong machine according to any one of claims 1 to 4, wherein the jacking mechanism (7) comprises a lifting rod (71), and the dice tray is fixedly connected with the lifting rod (71) in sequence through a tray bowl (73) and a bracket (72);
the silencing cover (8) further comprises a cylindrical part (82) positioned at the periphery of the bracket (72), an axial limiting piece (9) used for ensuring 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 disc (1);
the funnel-shaped part (83) positioned at the periphery of the bowl (73) is further fixedly arranged at one end of the cylindrical part (82) facing the dice tray, and the funnel-shaped part (83), the cylindrical part (82) and the umbrella-shaped part (81) are coaxially arranged.
6. The mahjong machine noise reduction system according to claim 5, wherein the shuffling large disc (1) is rotationally connected with the central shaft seat (2), the lifting rod (71) is penetrated 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 central shaft seat (2) is provided with a planetary gear reducer (4) for realizing transmission between the shuffling large disc (1) and the card poking device (3), and the planetary gear reducer (4) and the central shaft seat (2) are circumferentially positioned.
7. The mahjong machine noise reduction system according to claim 6, characterized in that the planetary gear reducer (4) comprises a planetary carrier (41) which is positioned circumferentially with the central shaft seat (2) and is limited axially, a primary speed reduction transmission pair (42) is arranged between the planetary carrier (41) and the shuffling large disc (1), and a secondary speed reduction transmission pair (43) is arranged between the planetary carrier (41) and the poker machine (3);
the primary speed reduction transmission pair (42) comprises a primary speed reduction planetary gear (42 a) rotatably connected to the planet carrier (41) and a power input gear (42 b) driven by the shuffling large disc (1) to rotate, and the power input gear (42 b) is meshed with the primary speed reduction planetary gear (42 a);
the secondary speed reduction transmission pair (43) comprises a secondary speed reduction planetary gear (43 a) rotatably connected to the planet carrier (41) and a power output gear (43 b) fixedly arranged on the card shifter (3), the secondary speed reduction planetary gear (43 a) is meshed with the power output gear (43 b), and the secondary speed reduction planetary gear (43 a) and the primary speed reduction planetary gear (42 a) are coaxially arranged.
8. The mahjong machine noise reduction system according to claim 7, wherein the planet carrier (41) comprises a planet carrier body (41 a) with a second center hole (41 b), the inner peripheral wall of the second center hole (41 b) is circumferentially positioned and arranged with the center shaft seat (2), two ends of the planet carrier body (41 a) are provided with outward flanges (41 d), and a planet wheel installation space (44) for installing a primary reduction planet gear (42 a) and a secondary reduction planet gear (43 a) is formed between the two outward flanges (41 d).
9. The noise reduction system of the mahjong machine as claimed in claim 8, wherein the noise reduction cover (8) and the playing card shifter (3) are mutually driven, and the shuffling large tray (1), the playing card shifter (3) and the noise reduction cover (8) have the same rotation direction;
the center of the planet carrier body (41 a) is also provided with a third center hole (41 e) communicated with the second center hole (41 b), and the planet carrier body (41 a) is provided with a first through hole (41 f) used for communicating the third center hole (41 e) with a planet wheel installation space (44) so that the primary reduction planet gear (42 a) is meshed with the power input gear (42 b);
the card pulling device (3) comprises a card pulling seat (31), a fourth central hole (33 a) for the central shaft seat (2) to pass through is formed in the center of the card pulling seat (31), and the power output gear (43 b) is convexly arranged on the bottom surface of the card pulling seat (31) and is coaxially arranged with the fourth central hole (33 a); the top surface of the planet carrier body (41 a) is concavely provided with an annular avoidance groove (41 g) for accommodating a power output gear (43 b), and the planet carrier body (41 a) is also provided with a second through hole (41 h) which is communicated with the annular avoidance groove (41 g) and a planet wheel installation space (44) so as to facilitate the meshing of the secondary reduction planet gear (43 a) and the power output gear (43 b);
a synchronous transmission part (10) is arranged between the top surface of the card poking seat (31) and the silencing cover (8);
the outer periphery of the card poking seat (31) is provided with a plurality of card poking strips (32) extending towards the edge of the card shuffling large tray (1), and the number of the card poking strips (32) is less than or equal to four.
10. The noise reduction system of the mahjong machine as claimed in claim 9, wherein the synchronous transmission member (10) comprises a funnel-shaped gear ring seat (101), the flaring end of the gear ring seat (101) is connected with the inner Zhou Bigu of the cylindrical part (82), and the narrow opening end of the gear ring seat (101) extends towards the periphery of the lifting rod (71); one side of the gear ring seat (101) facing the bracket (72) is abutted against the bracket (72), and one side of the gear ring seat (101) facing away from the bracket (72) is fixedly provided with a driven outer gear ring (104); a driving annular gear (105) meshed with the driven outer annular gear (104) is arranged at the top end opening of the fourth central hole (33 a);
or, the synchronous transmission member (10) comprises an annular gear ring seat (101), the outer peripheral side of the gear ring seat (101) is connected with the inner Zhou Bigu of the cylindrical part (82), the gear ring seat (101) is provided with a driven annular gear (102), and the top surface of the card poking seat (31) is fixedly provided with a driving outer gear ring (103) meshed with the driven annular gear (102); one end of the gear ring seat (101) facing the bracket (72) is abutted against the bracket (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558235.4A CN112807669B (en) | 2020-12-25 | 2020-12-25 | Noise reduction system of mahjong machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558235.4A CN112807669B (en) | 2020-12-25 | 2020-12-25 | Noise reduction system of mahjong machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112807669A CN112807669A (en) | 2021-05-18 |
| CN112807669B true CN112807669B (en) | 2023-10-27 |
Family
ID=75853975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011558235.4A Active CN112807669B (en) | 2020-12-25 | 2020-12-25 | Noise reduction system of mahjong machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112807669B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07194841A (en) * | 1993-12-28 | 1995-08-01 | M Tex Matsumura Kk | Automatic mah-jongg table |
| CN201630581U (en) * | 2009-11-09 | 2010-11-17 | 浙江松乐机电有限公司 | Muffling structure of mah-jong tile inlet of mah-jong table elevator |
| CN107485851A (en) * | 2017-09-20 | 2017-12-19 | 浙江默客机电有限公司 | A kind of noise silencing mechanism of mah-jong machine |
| CN208193620U (en) * | 2018-05-17 | 2018-12-07 | 南京雀和机电设备有限公司 | A kind of mute bucket of shuffling of automatic mahjong-playing machine |
| CN210728643U (en) * | 2019-07-12 | 2020-06-12 | 韦琳 | Shuffling device and automatic mahjong machine applying same |
| CN210874058U (en) * | 2019-07-29 | 2020-06-30 | 韦琳 | Brush disc mute shuffling cleaning device and automatic mahjong machine applying same |
| CN211158549U (en) * | 2019-09-30 | 2020-08-04 | 苏天福 | Surrounding sound-reducing cover of mahjong machine |
| CN211158548U (en) * | 2019-09-30 | 2020-08-04 | 苏天福 | Mahjong machine encircles sound-proof housing |
| CN211410958U (en) * | 2019-09-30 | 2020-09-04 | 苏天福 | Install in encircleing sound-proof housing of mahjong machine support bowl |
| CN111840980A (en) * | 2020-08-06 | 2020-10-30 | 韦琳 | Tile falling and noise reducing method and mute mahjong machine and noise reducing wind page device applied by same |
| CN111840981A (en) * | 2020-08-06 | 2020-10-30 | 韦琳 | Partition quantity control and tile arrangement method, and fast and silent mahjong machine and tile shifting wall device applied to partition quantity control and tile arrangement method |
-
2020
- 2020-12-25 CN CN202011558235.4A patent/CN112807669B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07194841A (en) * | 1993-12-28 | 1995-08-01 | M Tex Matsumura Kk | Automatic mah-jongg table |
| CN201630581U (en) * | 2009-11-09 | 2010-11-17 | 浙江松乐机电有限公司 | Muffling structure of mah-jong tile inlet of mah-jong table elevator |
| CN107485851A (en) * | 2017-09-20 | 2017-12-19 | 浙江默客机电有限公司 | A kind of noise silencing mechanism of mah-jong machine |
| CN208193620U (en) * | 2018-05-17 | 2018-12-07 | 南京雀和机电设备有限公司 | A kind of mute bucket of shuffling of automatic mahjong-playing machine |
| CN210728643U (en) * | 2019-07-12 | 2020-06-12 | 韦琳 | Shuffling device and automatic mahjong machine applying same |
| CN210874058U (en) * | 2019-07-29 | 2020-06-30 | 韦琳 | Brush disc mute shuffling cleaning device and automatic mahjong machine applying same |
| CN211158549U (en) * | 2019-09-30 | 2020-08-04 | 苏天福 | Surrounding sound-reducing cover of mahjong machine |
| CN211158548U (en) * | 2019-09-30 | 2020-08-04 | 苏天福 | Mahjong machine encircles sound-proof housing |
| CN211410958U (en) * | 2019-09-30 | 2020-09-04 | 苏天福 | Install in encircleing sound-proof housing of mahjong machine support bowl |
| CN111840980A (en) * | 2020-08-06 | 2020-10-30 | 韦琳 | Tile falling and noise reducing method and mute mahjong machine and noise reducing wind page device applied by same |
| CN111840981A (en) * | 2020-08-06 | 2020-10-30 | 韦琳 | Partition quantity control and tile arrangement method, and fast and silent mahjong machine and tile shifting wall device applied to partition quantity control and tile arrangement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112807669A (en) | 2021-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112807669B (en) | Noise reduction system of mahjong machine | |
| CN112755508B (en) | Noise reduction system of mute mahjong machine | |
| CN105155220A (en) | Vibration reduction and noise reduction structure of double power washing machine drive assembly | |
| CN110538451A (en) | Mahjong machine and big dish speed change gear thereof | |
| CN105734904B (en) | Speed reducing clutch for washing machine and washing machine | |
| CN215025929U (en) | Noise-reducing shuffling system of mahjong machine | |
| CN215025930U (en) | Noise-reducing shuffling system of mute mahjong machine | |
| CN105734900B (en) | Washing machine speed reduction clutch and washing machine | |
| CN112190917B (en) | Shuffling device of mahjong machine | |
| CN109908572B (en) | Center lifting mechanism of full-automatic mahjong machine | |
| CN210229111U (en) | Central lifting mechanism of full-automatic mahjong machine | |
| CN213942079U (en) | Central shaft seat for mahjong machine and mahjong shuffling device of mahjong machine | |
| CN213954265U (en) | Planetary gear reducer for mahjong machine | |
| CN213942080U (en) | Rotary tile-poking mechanism for mahjong machine | |
| CN210433959U (en) | Card arranging device without main case | |
| CN211676245U (en) | Variable-speed shuffling device of mahjong machine and mahjong machine | |
| CN212941372U (en) | Reverse rotation type card-poking strip mechanism | |
| CN212854605U (en) | Mute poker card strip shifting mechanism | |
| CN213954289U (en) | Differential transmission mechanism of mahjong shuffling large plate and mahjong shifting device of mahjong machine | |
| CN105734907B (en) | A kind of use in washing machine speed-reducing clutch and washing machine | |
| CN213313302U (en) | Large shuffling plate mechanism of mahjong machine and mahjong machine shuffling device | |
| CN110025950B (en) | Shuffling and central lifting linkage device of full-automatic mahjong machine | |
| CN100366940C (en) | Tailing forced separation one-stage auto clutch of motorcycle | |
| CN2893296Y (en) | Motorcycle post forced separating single-stage automatic clutch | |
| CN206816759U (en) | Electronic lock planetary speed reducer with small tooth number difference |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |