A lifting mechanism for mahjong machine and mahjong machine

Abstract

The utility model discloses a lifting mechanism for a mahjong machine to solve the problem that the existing mahjong machine lifting mechanism needs to use multiple screws to fix the motor. The utility model proposes a lifting mechanism for a mahjong machine, including a fixing seat, a motor and a limiter, the motor includes a motor body and a lug portion circumferentially arranged on the motor body, the limiter is installed on the fixing seat, the fixing seat includes a limiter groove, one end of the lug portion is limited in the limiter groove, and the limiter stops at the other end of the lug portion in the direction in which the lug portion is separated from the limiter groove. The motor in the lifting mechanism of the mahjong machine of the utility model does not need to be fixed with multiple screws, and the assembly and disassembly of the motor is more convenient. The utility model also proposes a mahjong machine, and a lifting mechanism for a mahjong machine using the above-mentioned technical solution.

Description

Technical Field

[0001] The utility model relates to the field of mahjong machines, in particular to a lifting mechanism for mahjong machines. Background Art

[0002] The dice plate or card raising plate in the center of the mahjong machine is usually raised and lowered by a lifting mechanism, which includes a motor fixing seat and a motor.

[0003] The multiple corners of the motor are fixed to the fixing seat by multiple screws. The assembly work of the assemblers is cumbersome and time-consuming, which makes it difficult to reduce the labor cost. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and propose a lifting mechanism for a mahjong machine to solve the problem that the existing lifting mechanism for a mahjong machine needs to use multiple screws to fix the motor.

[0005] In order to achieve the above technical objectives, the utility model proposes a lifting mechanism for a mahjong machine, including a fixed seat, a motor and a limit member, the motor including a motor body and a lug portion circumferentially arranged on the motor body, the limit member is installed on the fixed seat, the fixed seat includes a limit groove, one end of the lug portion is limited in the limit groove, and the limit member stops at the other end of the lug portion in the direction in which the lug portion is separated from the limit groove.

[0006] Preferably, the fixing seat includes a mounting surface, the mounting surface stops the front end surface of the lug part, the limiting groove limits the lug part in the front-rear direction of the lug part, and the limiting member limits the lug part from detaching from the limiting groove at the end away from the limiting groove.

[0007] Preferably, the fixing seat also includes a limiting wall protruding from the mounting surface, and the limiting wall, or the limiting wall and the limiting member, limit the radial and circumferential movement of the lug portion, and the limiting member includes a stop portion, and the stop portion stops at the rear end face of the lug portion.

[0008] Preferably, the fixing seat further comprises a stop block, the limiting groove is formed between the stop block and the mounting surface, the stop block comprises a giving way portion for giving way to the motor body, and the giving way portion supports the motor body.

[0009] Preferably, the lug portion comprises a plurality of lugs uniformly arranged in the circumferential direction, at least one of the lugs is at least partially limited in the limiting groove, and the limiting member stops at the rear end surface of at least another one of the lugs.

[0010] Preferably, the fixing seat comprises a positioning portion, and the limiting member comprises a matching portion, and the positioning portion cooperates with the matching portion to position the limiting member and install it on the fixing seat.

[0011] Preferably, a sensing component is further included, and a mounting groove for mounting the sensing component is provided on the fixing seat, the inner surface of the mounting groove protrudes to form a limiting rib, the limiting member includes a limiting portion protruding toward the sensing component, and the sensing component is limited between the limiting rib and the limiting portion.

[0012] Preferably, a gap is provided on the wall on one side of the installation groove, the sensing component includes a PCB board and a Hall element installed on the PCB board, the gap includes an open end, a limit end and a transition end gradually changing from the open end to the limit end, the opening width of the open end is greater than the sum of the widths of the PCB board and the Hall element, and the limit end is gap-matched with the PCB board.

[0013] Preferably, at least a portion of the PCB board passes through the installation slot through the air-avoiding notch, and the PCB board includes a terminal portion, and the terminal portion is arranged on the PCB board passing through the installation slot.

[0014] Preferably, it further includes a capacitor, wherein a mounting ear is provided on the capacitor, a first mounting hole is provided on the mounting ear, a second mounting hole is provided on the limiting member, and a third mounting hole is provided on the fixing seat, and a screw passes through the first mounting hole and the second mounting hole in sequence and is threadedly fixedly connected to the third mounting hole.

[0015] Preferably, a positioning groove is provided on the limiting member, the mounting ear is positioned in the positioning groove, and the second mounting hole is provided in the positioning groove.

[0016] The utility model also provides a mahjong machine, comprising a lifting mechanism for a mahjong machine according to any of the above technical solutions, which is used for lifting a dice plate or a card lifting plate of the mahjong machine.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects.

[0018] 1. The utility model proposes a lifting mechanism for a mahjong machine, including a fixed seat, a motor and a limiter. The motor includes a motor body and a lug portion circumferentially arranged on the motor body. The limiter is installed on the fixed seat. The fixed seat includes a limit slot. One end of the lug portion is limited in the limit slot. The limiter stops at the other end of the lug portion in the direction in which the lug portion is separated from the limit slot. In this way, the lug portion of the motor is fixed to the fixed seat by the limit slot and the limiter. The motor does not need to be fixed with multiple screws, thereby reducing the assembly cost. At the same time, there is no need to set multiple threaded holes on the fixed seat, which avoids the weakening of the structural strength of the fixed seat and the stress concentration point caused by multiple threaded holes. Secondly, the assembly and disassembly of the motor is faster and easier for later maintenance and installation.

[0019] 2. The fixing seat includes a mounting surface, which is stopped at the front end surface of the lug, and the limiting groove limits the lug in the front-rear direction of the lug, and the limiting member limits the lug from leaving the limiting groove at the end away from the limiting groove. With this arrangement, the mounting surface, the limiting groove and the limiting member cooperate to clamp the lug between the three, which can absorb the error of the lug, and the local deformation of the lug does not affect the installation of the motor, and at the same time, the lug can be stably limited on the fixing seat.

[0020] 3. The fixing seat also includes a limiting wall protruding from the mounting surface, the limiting wall, or the limiting wall and the limiting member, which limit the radial and circumferential movement of the lug portion, and the limiting member includes a stop portion, which stops at the rear end face of the lug portion. With such a configuration, when the limiting member is not installed, the limiting wall and the limiting groove can form a pre-positioning of the motor, thereby preventing the motor from being installed in a wrong position during the assembly process; at the same time, the limiting wall, or the limiting wall and the limiting member limit the lug portion in radial and circumferential directions, and the stop portion stops at the rear end face of the lug portion, so that the motor installed on the fixing seat can be better limited, the shaking of the motor during operation is reduced, and the motor is more stable during operation; furthermore, the stop portion stops at the rear end of the lug portion, and since the limiting member is installed later, the spacing between the stop portion and the mounting surface can be adjusted, so that the limiting member, the lug portion and the mounting surface can be pressed tighter.

[0021] 4. The fixing seat also includes a stop block, a limit groove is formed between the stop block and the mounting surface, the stop block includes a giving part for giving way to the motor body, the giving part supports the motor body, due to the cantilever structure between the motor body and the lug part, the upper and lower ends of the lug part are respectively subjected to shear force and pressure, and the motor body is supported by the giving part, thereby reducing the force on the lug part, improving the service life of the lug part, and reducing the probability of the motor needing maintenance or replacement.

[0022] 5. The lug portion includes a plurality of lugs uniformly arranged in the circumferential direction, at least a portion of at least one of the lugs is limited in the limiting groove, and the limiting member stops at the rear end surface of at least another lug. With such an arrangement, the independent lug has a certain shock-absorbing effect, and the separately arranged lugs are beneficial to reducing the vibration transmitted to the fixed seat when the motor is running; at the same time, the independently arranged lugs have a lighter weight than the integral lugs, thereby reducing the weight of the motor and the lifting mechanism.

[0023] 6. The fixed seat includes a positioning portion, and the limiting member includes a matching portion. The positioning portion cooperates with the matching portion to position the limiting member and install it on the fixed seat. With this arrangement, the limiting member can be better positioned on the fixed seat, and it is easier for assemblers to install the limiting member, thereby reducing the labor cost of the lifting mechanism.

[0024] 7. It also includes a sensing component. A mounting groove for mounting the sensing component is provided on the fixing seat. The inner surface of the mounting groove is raised to form a limiting rib. The limiting member includes a limiting portion raised toward the sensing component. The sensing component is limited between the limiting rib and the limiting portion. With such an arrangement, the limiting member also cooperates with the fixing seat to fix and limit the sensing component. The sensing component does not need to be fixed to the lifting structure by screws, which simplifies the assembly process of the lifting mechanism and reduces the labor cost of the lifting mechanism.

[0025] 8. A clearance gap is provided on the wall on one side of the installation slot. The clearance gap includes an open end, a limit end, and a transition end that gradually changes from the open end to the limit end. The opening width of the open end is greater than the sum of the widths of the PCB board and the Hall element, and the limit end is matched with the gap of the PCB board. By providing a clearance gap on one side of the installation slot, it is convenient to install the sensor component into the fixing seat through the clearance gap. At the same time, the clearance of the limit end of the clearance gap and the PCB board can play a role in positioning and limiting the PCB board to a certain extent, so that the PCB board can be more easily kept in the pre-positioned position after being installed in the fixing seat, which is convenient for the subsequent assembly of the limiter.

[0026] 9. At least part of the PCB board passes through the installation groove through the air-avoiding gap, and the PCB board includes a terminal part, and the terminal part is arranged on the PCB board passing through the installation groove. In this way, the terminal part of the sensor component is arranged on the outside of the fixing seat, so that the wiring of the sensor component is more convenient, and the labor cost of assembling the lifting mechanism is further reduced.

[0027] 10. It also includes a capacitor, a mounting ear is provided on the capacitor, a first mounting hole is provided on the mounting ear, a second mounting hole is provided on the limiter, and a third mounting hole is provided on the fixing seat. The screw passes through the first mounting hole and the second mounting hole in sequence and is screwed into the third mounting hole. In this way, the capacitor and the limiter are fixedly mounted on the fixing seat by screws, and no additional screws are required to fix the capacitor, which further saves materials and reduces the material cost of the lifting mechanism.

[0028] 11. A positioning groove is provided on the limit member, the mounting ear is positioned in the positioning groove, and the second mounting hole is provided in the positioning groove. With such a configuration, the capacitor can be pre-positioned on the limit member and then fixed by screws, which further simplifies the difficulty of capacitor installation, makes the installation operation of the assembler simpler, and reduces the labor cost of the lifting mechanism.

[0029] 12. The utility model also provides a mahjong machine, which adopts a lifting mechanism for a mahjong machine according to any of the above technical solutions, so the mahjong machine has all the technical effects of the above technical solutions.

[0030] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of a lifting mechanism for a mahjong machine in an embodiment of the utility model;

[0032] Figure 2 This is an exploded view of the lifting mechanism for the mahjong machine in the embodiment of the utility model;

[0033] Figure 3 A view of a fixing seat in an embodiment of the utility model;

[0034] Figure 4 Another view of the fixing base in the embodiment of the utility model;

[0035] Figure 5 Another view of the fixing base in the embodiment of the utility model;

[0036] Figure 6 This is a schematic diagram of the installation of the motor, the fixing seat and the limiting member in the embodiment of the utility model;

[0037] Figure 7 It is a schematic diagram of positioning the sensing component on the fixing seat in the embodiment of the utility model;

[0038] Figure 8 A schematic diagram of a position limiting member in an embodiment of the utility model;

[0039] Fig. 9 A schematic diagram of a capacitor in an embodiment of the utility model;

[0040] Reference numerals:

[0041] 100, fixing seat, 101, limiting groove, 110, mounting surface, 111, avoiding groove, 120, stopping block, 121, giving way, 130, limiting wall, 131, first limiting wall, 132, second limiting wall, 133, third limiting wall, 140, positioning portion, 141, first positioning surface, 142, second positioning surface, 143, third positioning surface, 150, mounting groove, 151, limiting rib, 152, avoiding gap, 1521, open end, 1522, transition end, 1523, limiting end, 160, third mounting hole;

[0042] 200, a limiting member, 210, a stopper, 220, a matching portion, 221, a first matching surface, 222, a second matching surface, 223, a third matching surface, 230, a limiting portion, 240, a positioning groove, 250, a second mounting hole;

[0043] 300, motor, 310, motor body, 320, lug portion;

[0044] 400, sensing component, 410, PCB board, 411, terminal part, 420, Hall element;

[0045] 500, capacitor, 510, mounting ear, 511, first mounting hole. DETAILED DESCRIPTION

[0046] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" and "several" mean two or more, unless otherwise clearly defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Embodiment 1:

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, a lifting mechanism for a mahjong machine proposed in an embodiment of the utility model includes a fixed seat 100, a motor 300 and a limiting member 200, the motor 300 includes a motor body 310 and a lug portion 320 circumferentially arranged on the motor body 310, the limiting member 200 is installed on the fixed seat 100, the fixed seat 100 includes a limiting groove 101, one end of the lug portion 320 is limited in the limiting groove 101, and the limiting member 200 stops at the other end of the lug portion 320 in the direction in which the lug portion 320 is separated from the limiting groove 101.

[0052] With such arrangement, the lug portion 320 of the motor 300 is fixed on the fixing base 100 by means of the limiting groove 101 and the limiting member 200, and the motor 300 does not need to be fixed by multiple screws, thereby reducing the assembly cost; at the same time, there is no need to set multiple threaded holes on the fixing base 100, thereby avoiding the weakening of the structural strength of the fixing base 100 and the creation of stress concentration points by multiple threaded holes; secondly, the assembly and disassembly of the motor 300 is faster, and it is easy to carry out subsequent maintenance and installation.

[0053] The lifting mechanism for the mahjong machine further includes a driving assembly (not shown) and a lifting rod (not shown). The operation of the motor 300 drives the driving assembly to move so as to achieve the lifting of the lifting rod.

[0054] In this embodiment, the fixing base 100 includes a mounting surface 110, the mounting surface 110 stops the front end surface of the lug portion 320, the limiting groove 101 limits the lug portion 320 in the front-to-back direction of the lug portion 320, and the limiting member 200 limits the lug portion 320 from being separated from the limiting groove 101 at the end away from the limiting groove 101.

[0055] During assembly, one end of the lug 320 is first inserted into the limiting groove 101 , and the other end of the lug 320 is pushed to fit it on the mounting surface 110 , and then the limiting member 200 is installed to mount the motor 300 on the fixing base 100 .

[0056] In this arrangement, the mounting surface 110, the limiting groove 101 and the limiting member 200 cooperate to clamp the lug portion 320 therebetween, thereby absorbing the error of the lug portion 320. Local deformation of the lug portion 320 does not affect the installation of the motor 300, and at the same time the lug portion 320 can be stably limited on the fixing base 100.

[0057] In some other embodiments, the limiting groove 101 circumferentially limits the lug 320 in the front and rear directions, and the lug 320 can be inserted into or separated from the limiting groove 101 in one of the directions of up, down, left, and right. The limiting member 200 stops the lug 320 in the direction in which the lug 320 separates from the limiting groove 101. The lug 320 is inserted into the limiting groove 101 longitudinally or transversely, and a notch is provided on the fixing seat 100 to avoid the motor shaft.

[0058] In this embodiment, a clearance groove 111 is formed on the mounting surface 110 , and the motor shaft passes through the clearance groove 111 and is connected to the driving assembly.

[0059] In this embodiment, the fixing seat 100 also includes a limiting wall 130 protruding from the mounting surface 110 , the limiting wall 130 limits the radial and circumferential movement of the lug portion 320 , and the limiting member 200 includes a stop portion 210 , the stop portion 210 stops at the rear end face of the lug portion 320 .

[0060] Among them, the limiting wall 130 includes a first limiting wall 131 and a second limiting wall 132, the first limiting wall 131 and the second limiting wall 132 are arranged on both sides of the limiting groove 101, the first limiting wall 131 extends toward the second limiting wall 132 to form a third limiting wall 133, and the third limiting wall 133 stops above the lug portion 320, so that the limiting wall 130 limits the radial movement of the lug portion 320.

[0061] The edge of the lug 320 has at least a portion of straight edges, and the corresponding position on the limiting wall 130 is also a straight wall, so that the limiting wall 130 limits the circumferential movement of the lug 320. It can be understood that the limiting wall 130 is formed into a shape that matches the lug 320, so that the circumferential movement of the lug 320 can be limited.

[0062] In some other embodiments, the limiting wall 130 includes a first limiting wall 131 and a second limiting wall 132 arranged on both sides of the limiting groove 101, and a third limiting wall 133 is arranged on the limiting member 200, so that the limiting wall 130 and the limiting member 200 cooperate to limit the radial and circumferential movement of the lug portion 320.

[0063] With such arrangement, when the limiting member 200 has not been installed, the limiting wall 130 and the limiting groove 101 can form a pre-positioning for the motor 300, thereby preventing the motor 300 from being installed in the wrong position during the assembly process; at the same time, the limiting wall 130, or the limiting wall 130 and the limiting member 200 limit the radial and circumferential position of the lug 320, and the limiting member 200 stops at the rear end face of the lug 320, so that the motor 300 installed on the fixing seat 100 can be better limited, reducing the shaking of the motor 300 during operation, and the motor 300 is more stable during operation; furthermore, the stopping portion 210 stops at the rear end of the lug 320. Since the limiting member 200 is installed later, the spacing between the stopping portion 210 and the mounting surface 110 can be adjusted, so that the limiting member 200, the lug 320 and the mounting surface 110 can be pressed tighter.

[0064] In another preferred embodiment, the fixing seat 100 further includes a stop block 120 , a limiting groove 101 is formed between the stop block 120 and the mounting surface 110 , and the stop block 120 includes a giving way portion 121 for giving way to the motor body 310 , and the giving way portion 121 supports the motor body 310 .

[0065] Due to the cantilever structure between the motor body 310 and the lug portion 320, the upper and lower ends of the lug portion 320 are respectively subjected to shear force and pressure. The motor body 310 is supported by the yield portion 121, thereby reducing the force on the lug portion 320, improving the service life of the lug portion 320, and reducing the probability of the motor 300 needing repair or replacement.

[0066] In this embodiment, the lug portion 320 includes four lugs uniformly arranged in the circumferential direction, the two lugs at the lower end are at least partially limited in the limiting groove 101, and the limiting member 200 stops at the rear end surface of one of the lugs at the upper end.

[0067] It is understandable that the number of lugs of the lug portion 320 may be two, three or more than four. Alternatively, at least a portion of a lug may be limited in the limiting groove 101. Alternatively, the limiting member 200 may be stopped at the rear end surfaces of the plurality of lugs.

[0068] It can be understood that two adjacent lugs may also extend to each other so that a plurality of lugs are connected to form a whole.

[0069] In some other embodiments, the limiting groove 101 may also be arranged at the upper end, and the limiting member 200 may be installed at the lower end.

[0070] With such arrangement, the independent lugs have a certain shock-absorbing effect, and the separately arranged lugs are beneficial to reducing the vibration transmitted to the fixing seat 100 when the motor 300 is running; at the same time, the independently arranged lugs have a lighter weight than the integral lugs, thereby reducing the weight of the motor 300 and the lifting mechanism.

[0071] In this embodiment, the fixing seat 100 includes a positioning portion, and the limiting member 200 includes a matching portion 220 . The positioning portion cooperates with the matching portion 220 to position the limiting member 200 and install it on the fixing seat 100 .

[0072] With such arrangement, the limiting member 200 can be better positioned on the fixing seat 100 , and it is easier for assemblers to install the limiting member 200 , thereby reducing the labor cost of the lifting mechanism.

[0073] In this embodiment, the positioning portion preferably includes a plurality of positioning surfaces, the matching portion 220 includes a plurality of matching surfaces, and the plurality of positioning surfaces abut against the plurality of matching surfaces to position the stopper 200. Specifically, the positioning portion includes a first positioning surface, a second positioning surface, and a third positioning surface, the matching portion 220 includes a first matching surface 221, a second matching surface 222, and a third matching surface 223, the first positioning surface abuts against the first matching surface 221, the second positioning surface abuts against the second matching surface 222, and the third positioning surface abuts against the third matching surface 223.

[0074] It is understandable that there may be two or more than three positioning surfaces.

[0075] With such arrangement, the cooperation of the multiple positioning surfaces and the multiple matching surfaces can enable the limiting member 200 to be more accurately positioned on the fixing seat 100 , thereby improving the installation accuracy of the limiting member 200 .

[0076] In some other embodiments, the positioning portion and the matching portion 220 are positioned by keyway matching or pin hole matching.

[0077] Embodiment 2:

[0078] Based on Example 1, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 As shown, in this embodiment, the lifting mechanism for the mahjong machine further includes a sensor component 400 and a control component, the sensor senses the position of the driving component and sends a corresponding position signal to the control component. The control component determines the position of the lifting rod according to the position signal.

[0079] Among them, the fixing seat 100 is provided with an installation groove 150 for installing the sensor component 400, the inner surface of the installation groove 150 protrudes to form a limiting rib 151, the limiting member 200 protrudes toward the direction of the sensor component 400 to form a limiting portion 230, and the sensor component 400 is limited between the limiting rib 151 and the limiting portion 230.

[0080] With such arrangement, the limit member 200 also cooperates with the fixing seat 100 to fix the limit sensor component 400. The sensor component 400 does not need to be fixed to the lifting structure by screws, which simplifies the assembly process of the lifting mechanism and reduces the labor cost of the lifting mechanism.

[0081] The sensor component 400 includes a PCB board 410 and a Hall element 420 mounted on the PCB board 410 . The PCB board 410 is provided with a terminal portion 411 . The terminal portion 411 is used to connect a wire and receive and send corresponding electrical signals through the wire.

[0082] Preferably, in this embodiment, the end of the limiting rib 151 extends toward the PCB board 410, and the distance between the end and the inner surface of the mounting groove 150 matches the clearance of the PCB board 410, so that the limiting rib 151 can further position the sensing component 400, and the PCB board 410 can be more easily maintained in the pre-positioned position when it is pre-positioned on the fixing seat 100.

[0083] Preferably, in this embodiment, a gap 152 is provided on the wall on one side of the mounting groove 150, and the gap 152 includes an open end 1521, a limit end 1523, and a transition end 1522 which gradually changes from the open end 1521 to the limit end 1523, and the opening width of the open end 1521 is greater than the sum of the widths of the PCB board 410 and the Hall element 420, and the limit end 1523 is clearance-matched with the PCB board 410.

[0084] By setting a clearance gap 152 on one side of the installation groove 150, it is convenient to install the sensor component 400 into the fixing seat 100 through the clearance gap 152. At the same time, the clearance fit between the limiting end 1523 of the clearance gap 152 and the PCB board 410 can play a role in positioning and limiting the PCB board 410 to a certain extent, so that the PCB board 410 can be more easily maintained in the pre-positioned position after being installed in the fixing seat 100, which is convenient for the subsequent assembly of the limiting component 200.

[0085] More preferably, in this embodiment, at least a portion of the PCB board 410 passes through the installation slot 150 through the air-avoiding gap 152 , and the PCB board 410 includes a terminal portion 411 , which is disposed on the PCB board 410 passing through the installation slot 150 .

[0086] In this way, the terminal portion 411 of the sensor component 400 is arranged outside the fixing seat 100, so that the wiring of the sensor component 400 is more convenient, and the labor cost of assembling the lifting mechanism is further reduced.

[0087] Embodiment three:

[0088] Based on the first and second embodiments, Figure 1 , Figure 2 , Figure 8 , Fig. 9 As shown, in this embodiment, the lifting mechanism for the mahjong machine also includes a capacitor 500, a mounting ear 510 is provided on the capacitor 500, a first mounting hole 511 is provided on the mounting ear 510, a second mounting hole 250 is provided on the limiter 200, and a third mounting hole 160 is provided on the fixing seat 100. The screw passes through the first mounting hole 511 and the second mounting hole 250 in sequence and is screwed into the third mounting hole 160.

[0089] In this configuration, the capacitor 500 and the stopper 200 are fixedly mounted on the fixing base 100 by screws, and no additional screws are required to fix the capacitor 500, which further saves materials and reduces the material cost of the lifting mechanism.

[0090] In this embodiment, the position-limiting member 200 is preferably provided with a positioning groove 240, the mounting ear 510 is positioned in the positioning groove 240, and the second mounting hole 250 is provided in the positioning groove 240. The mounting groove 150 is surrounded by a plurality of convex ribs protruding from one side of the position-limiting member 200.

[0091] With such arrangement, the capacitor 500 can be pre-positioned on the limiting member 200 and then fixed by screws, which further simplifies the difficulty of installing the capacitor 500, makes the installation operation of the assembler simpler, and reduces the labor cost of the lifting mechanism.

[0092] Embodiment 4:

[0093] The utility model also provides a mahjong machine, which adopts the lifting mechanism for the mahjong machine of any technical solution in the first to third embodiments.

[0094] In one embodiment, the lifting mechanism for a mahjong machine is used for lifting and lowering the dice plate of the mahjong machine.

[0095] In another embodiment, the lifting mechanism of the mahjong machine is used to lift and lower the card lifting board.

[0096] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A lifting mechanism for a mahjong machine, characterized in that: It includes a fixing seat, a motor and a limiting member, wherein the motor includes a motor body and a lug portion circumferentially arranged on the motor body, the limiting member is installed on the fixing seat, the fixing seat includes a limiting groove, one end of the lug portion is limited in the limiting groove, and the limiting member stops at the other end of the lug portion in the direction in which the lug portion is separated from the limiting groove.

2. A lifting mechanism for a mahjong machine as claimed in claim 1, characterized in that: The fixing seat comprises a mounting surface, the mounting surface blocks the front end surface of the lug portion, the limiting groove limits the lug portion in the front-rear direction of the lug portion, and the limiting member limits the lug portion from being separated from the limiting groove at an end away from the limiting groove.

3. A lifting mechanism for a mahjong machine as claimed in claim 2, characterized in that: The fixing seat also includes a limiting wall protruding from the mounting surface, and the limiting wall, or the limiting wall and the limiting member, limits the radial and circumferential movement of the lug portion. The limiting member includes a stop portion, and the stop portion stops at the rear end surface of the lug portion.

4. A lifting mechanism for a mahjong machine as claimed in claim 2, characterized in that: The fixing seat further comprises a stop block, wherein the limiting groove is formed between the stop block and the mounting surface, and the stop block comprises a giving way portion for giving way to the motor body, wherein the giving way portion supports the motor body.

5. A lifting mechanism for a mahjong machine as claimed in claim 1, characterized in that: The lug portion includes a plurality of lugs uniformly arranged in the circumferential direction, at least a portion of at least one of the lugs is limited in the limiting groove, and the limiting member is stopped at the rear end surface of at least another of the lugs.

6. A lifting mechanism for a mahjong machine as claimed in claim 1, characterized in that: The fixing seat includes a positioning portion, and the limiting member includes a matching portion. The positioning portion matches with the matching portion so that the limiting member is positioned and installed on the fixing seat.

7. A lifting mechanism for a mahjong machine as claimed in claim 1, characterized in that: It also includes a sensing component, the fixing seat is provided with a mounting groove for mounting the sensing component, the inner surface of the mounting groove is raised to form a limiting rib, the limiting member includes a limiting portion protruding toward the sensing component, and the sensing component is limited between the limiting rib and the limiting portion.

8. A lifting mechanism for a mahjong machine as claimed in claim 7, characterized in that: A gap is provided on the wall on one side of the installation groove, the sensing component includes a PCB board and a Hall element installed on the PCB board, the gap includes an open end, a limit end and a transition end gradually changing from the open end to the limit end, the opening width of the open end is greater than the sum of the widths of the PCB board and the Hall element, the limit end is gap-matched with the PCB board, at least part of the PCB board passes through the installation groove through the gap, and the PCB board includes a terminal portion, and the terminal portion is provided on the PCB board passing through the installation groove.

9. A lifting mechanism for a mahjong machine as claimed in claim 1, characterized in that: It also includes a capacitor, wherein the capacitor is provided with a mounting ear, the mounting ear is provided with a first mounting hole, the limiting member is provided with a second mounting hole, the fixing seat is provided with a third mounting hole, and a screw passes through the first mounting hole and the second mounting hole in sequence and then is screwed into the third mounting hole; The limiting member is provided with a positioning groove, the mounting ear is positioned in the positioning groove, and the second mounting hole is provided in the positioning groove.

10. A mahjong machine, characterized in that: The invention comprises a lifting mechanism for a mahjong machine as described in any one of claims 1 to 9, wherein the lifting mechanism for a mahjong machine is used for lifting a dice plate or a card lifting plate of the mahjong machine.

Images