Card lifting mechanism for driving card lifting plate to lift

Abstract

The utility model relates to the field of mahjong machines, and discloses a tile lifting mechanism for driving a tile lifting plate to lift, which comprises a tile storage frame, the tile lifting plate, a connecting rod component and a driving part, one end of the tile lifting plate is hinged on the tile storage frame, and the other end of the tile lifting plate is connected with the connecting rod component; the connecting rod assembly comprises a first swing part, a pull rod and a second swing part. The first swing part is hinged to the mahjong tile storage frame through a first pin shaft, and the pull rod pulls the first swing part to swing and drives the mahjong tile lifting plate to ascend and descend; the pull rod is mounted on the mahjong tile storage frame and linearly reciprocates on the mahjong tile storage frame; the second swing part is hinged to the mahjong tile storage frame through a second pin shaft, and the driving part drives the second swing part to swing and drives the pull rod to move. According to the tile lifting mechanism, the connecting rod assembly is adopted to drive the tile lifting plate to ascend and descend, the connecting rod assembly pushes the pull rod to do linear motion through swing of the second swing part, the pull rod moves to drive the first swing rod to swing, and therefore the tile lifting plate ascends and descends, traditional gear and rack transmission is omitted, the manufacturing process is reduced, and the assembling efficiency and the power transmission reliability are improved.

Description

Technical Field

[0001] The utility model relates to the field of mahjong machines, in particular to a card-raising mechanism for driving a card-raising plate to rise and fall. Background Art

[0002] One end of the card lifting plate in the rotorcraft mahjong machine is hinged on the card storage rack, and the other end is driven by the connecting rod assembly to achieve lifting and lowering, so as to lift the mahjong tiles to the table. In other patent documents, the connecting rod assembly is also called the card lifting assembly, for example, the publication number is CN111991798 A, the card lifting assembly also includes a lifting swing arm, one end of the lifting swing arm is provided with a driving tooth, the end of the lifting push rod away from the gear train is provided with a driving rack, the driving rack includes an upper tooth surface and a lower tooth surface, the driving tooth is meshed with the lower tooth surface, the upper tooth surface is meshed with a limit gear, the lower end surface of the upper card bar is provided with a shifting block, the shifting block is provided with a limit groove, and the other end of the lifting swing arm is provided with a limit head that slides with the limit groove. This structure requires injection molding of racks and gears, which is relatively cumbersome in terms of process, and the meshing precision of the rack and gear is also relatively high. If there is a slight deviation between the two, it will affect the transmission efficiency. Utility Model Content

[0003] The utility model aims at the shortcomings of the prior art and provides a card lifting mechanism for driving a card lifting plate to rise and fall.

[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0005] The card-lifting mechanism for driving the card-lifting plate to rise and fall comprises a card-storing frame, a card-lifting plate for lifting mahjong tiles to a tabletop, a connecting rod assembly for driving the card-lifting plate to rise and fall, and a driving member for driving the connecting rod assembly to move. One end of the card-lifting plate is hinged on the card-storing frame, and the other end thereof is connected to the connecting rod assembly.

[0006] The connecting rod assembly includes a first swinging member for driving the card lifting plate to rise and fall, a pull rod connected to the other end of the first swinging member, and a second swinging member connected to the other end of the pull rod;

[0007] The first swinging member is hinged on the card storage rack through a first pin shaft, and the pull rod pulls the first swinging member to swing and drives the card lifting plate to rise and fall;

[0008] The pull rod is installed on the card storage rack and performs linear reciprocating motion thereon;

[0009] The second swinging member is hinged on the card storage frame through a second pin shaft, and the driving member drives the second swinging member to swing and drives the pull rod to move.

[0010] Preferably, a linear track groove is provided on the card storage rack, a pull rod is installed in the track groove, and a positioning block for limiting the pull rod on the track groove is installed on the card storage rack.

[0011] Preferably, a waist-shaped hole is provided on the pull rod, and a positioning column is provided at the bottom of the track groove. When the pull rod is installed in the track groove, the positioning column extends into the waist-shaped hole.

[0012] Preferably, both ends of the positioning block are fastened to the card storage racks on both sides of the track groove by screws, and the positioning block is also threadedly connected to the positioning column by other screws.

[0013] Preferably, the first swinging member includes a sleeve and a first swinging arm and a second swinging arm arranged on both sides of the sleeve. One end of the first pin shaft is installed on the sleeve and the other end is installed on the card storage rack. The first swinging arm is connected to the card lifting plate and drives it to rise and fall. The second swinging arm is connected to the pull rod.

[0014] Preferably, a first roller is installed at the end of the first swing arm, a shift block is installed at the lower end of the card lifting plate, a shift block is provided with a shift groove, the first swing arm swings and drives the first roller to enter the shift groove, and the first swing arm swings and drives the card lifting plate to rise and fall.

[0015] Preferably, a second roller is installed at the end of the second swing arm, and a vertically arranged first strip hole is provided at the end of the pull rod, and the second roller is installed in the first strip hole and moves therein.

[0016] Preferably, a third roller is installed at the end of the second swinging member, and a second strip hole is arranged transversely at the other end of the pull rod, and the third roller is installed in the second strip hole and moves therein.

[0017] Preferably, a limiting groove is provided on the second swinging member, and a torsion spring is mounted on the second pin shaft, one end of the torsion spring abuts against the groove wall of the limiting groove, and the other end thereof abuts against the card storage rack.

[0018] Preferably, the second swinging member is a triangular plate, and the second pin is installed at the third end angle of the second swinging member.

[0019] The utility model has significant technical effects due to the adoption of the above technical solutions:

[0020] This card lifting mechanism adopts a connecting rod assembly to drive the card lifting plate to rise and fall. The connecting rod assembly pushes the pull rod to make linear motion through the swing of the second swinging member. The movement of the pull rod drives the swing of the first swinging rod, thereby realizing the lifting of the card lifting plate, eliminating the traditional gear rack transmission, reducing the manufacturing process, and improving the assembly efficiency and the reliability of power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the connecting rod assembly.

[0022] Figure 2 It is a structural diagram of the pull rod.

[0023] Figure 3 Schematic diagram of the structure of the second swing member.

[0024] Figure 4 It is a structural schematic diagram of the first swing member and its upper components.

[0025] Figure 5 It is a structural schematic diagram of the connecting rod assembly installed on the card storage rack.

[0026] Figure 6 It is a structural schematic diagram of a card storage rack.

[0027] The parts indicated by the numbers in the above drawings are as follows:

[0028] 10—card rack, 101—track slot, 102—positioning column

[0029] 11—Promotion board

[0030] 12—first swing member, 121—shaft sleeve, 122—first swing arm, 123—second swing arm

[0031] 13—pull rod, 131—waist-shaped hole, 132—first strip-shaped hole, 133—second strip-shaped hole

[0032] 14—second swinging member, 141—limiting groove

[0033] 15—First pin

[0034] 16—Second pin

[0035] 17—Positioning block

[0036] 18—First roller

[0037] 19-shift block, 191-shift slot

[0038] 20—Second roller

[0039] 21—Torsion spring DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-6 The utility model is further described in detail with examples.

[0041] Example 1

[0042] The card-lifting mechanism that drives the lifting board to rise and fall includes a card-lifting rack 10, a card-lifting rack 11 for lifting mahjong tiles to the table, a connecting rod assembly for driving the lifting board 11 to rise and fall, and a driving member for driving the connecting rod assembly to move. The driving member in this embodiment is not shown, and the driving member can be any one that can drive the connecting rod assembly to swing, such as a cam or a turntable with a track or a rotating wheel with a track. One end of the card-lifting rack 11 is hinged to the card-lifting rack 10 through a pin, and the other end is connected to the connecting rod assembly. When the card-lifting rack 11 descends, the mahjong tiles can be pushed onto the card-lifting rack 11, and when the card-lifting rack 11 rises, the mahjong tiles can be lifted to the table.

[0043] The connecting rod assembly includes a first swinging member 12 for driving the card lifting plate 11 to rise and fall, a pull rod 13 connected to the other end of the first swinging member 12, and a second swinging member 14 connected to the other end of the pull rod 13. The first swinging member 12 swings to realize the lifting and falling of the card lifting plate 11. The pull rod 13 serves as a driving source for the first swinging member 12, and the second swinging member 14 serves as a driving source for the pull rod 13.

[0044] The first swing member 12 is hinged to the card storage rack 10 through the first pin shaft 15. In this embodiment, the first pin shaft 15 is interference-fitted on the card storage rack 10. The first swing member 12 can swing around the first pin shaft 15. The pull rod 13 pulls the first swing member 12 to swing and drives the card lifting plate 11 to rise and fall.

[0045] The pull rod 13 is installed on the card storage rack 10 and performs linear reciprocating motion thereon. The linear reciprocating motion of the pull rod 13 enables the first swinging member 12 to swing back and forth;

[0046] The second swinging member 14 is hinged on the card storage rack 10 through the second pin shaft 16. The driving member drives the second swinging member 14 to swing and drives the pull rod 13 to move. The second swinging member 14 swings to pull the pull rod 13 to perform linear motion.

[0047] The connecting rod assembly eliminates the meshing of the gear rack, has a low manufacturing process, high assembly efficiency, and high reliability of connection between components.

[0048] A linear track groove 101 is provided on the card storage rack 10, and a pull rod 13 is installed in the track groove 101. The pull rod 13 makes a linear motion on the track groove 101. A positioning block 17 for limiting the pull rod 13 on the track groove 101 is installed on the card storage rack 10. The positioning block 17 covers the track groove 101 to prevent the pull rod 17 from falling.

[0049] A waist-shaped hole 131 is provided on the pull rod 13, and a positioning column 102 is integrally formed at the bottom of the track groove 101. When the pull rod 13 is installed in the track groove 101, the positioning column 102 extends into the waist-shaped hole 131, and the positioning column 102 moves relatively in the waist-shaped hole 131, further ensuring that the pull rod 13 performs linear motion.

[0050] The two ends of the positioning block 17 are fastened to the card storage rack 10 on both sides of the track groove 101 by screws, and the positioning block 17 is also threadedly connected to the positioning column 102 by other screws. Since the positioning block 17 is fixedly connected to the positioning column 102, the pull rod 13 will not be separated from the positioning column 102. The positioning block 17 does not need to fully cover the track groove 101. The volume of the positioning block 17 can be made smaller, which saves materials and improves the stability of the pull rod 13.

[0051] The first swing member 12 includes a shaft sleeve 121 and a first swing arm 122 and a second swing arm 123 arranged on both sides of the shaft sleeve 121. The first swing arm 122 and the second swing arm 123 are integrally formed on the shaft sleeve 121. One end of the first pin 15 is mounted on the shaft sleeve 121, and the other end thereof is mounted on the card storage rack 10. The first swing arm 122 is connected to the card lifting plate 11 and drives it to rise and fall. The second swing arm 123 is connected to the pull rod 13. The first swing member 12 does not need to be made into a gear, and the manufacturing process requirements are not high, the connection strength is high, and the reliability is good.

[0052] The first roller 18 is installed at the end of the first swing arm 122, and a shifting block 19 is installed at the lower end of the card raising plate 11 by screws. The shifting block 19 is provided with a shifting groove 191. The first swing arm 122 swings and drives the first roller 18 to enter the shifting groove 191. The first swing arm 122 swings and drives the card raising plate 11 to rise and fall. The existing shifting block is only a thin plate with a notch on the thin plate. This structure has a low height and poor stability.

[0053] A second roller 20 is installed at the end of the second swing arm 123, and a vertically arranged first strip hole 132 is provided at the end of the pull rod 13. The second roller 20 is installed in the first strip hole 132 and moves therein. When the first swing member 12 swings, the first strip hole 132 is used to cooperate with the swing of the second swing arm 123 to prevent the first swing member 12 from being unable to swing.

[0054] A third roller is installed at the end of the second swinging member 14, and a second strip hole 133 is arranged horizontally at the other end of the pull rod 13. The second strip hole 133 and the first strip hole 132 are not on the same plane, and the two are perpendicular to each other in space. The third roller is installed in the second strip hole 133 and moves therein. The second strip hole 133 is used to cooperate with the swinging of the second swinging member 14 to avoid the second swinging member 14 being unable to swing and facilitate the swinging of the second swinging member 14.

[0055] Example 2

[0056] The features of Example 2 are basically the same as those of Example 1, except that a limiting groove 141 is provided on the second swinging member 14, and a torsion spring 21 is mounted on the second pin shaft 16. One end of the torsion spring 21 abuts against the groove wall of the limiting groove 141, and the other end abuts against the card storage rack 10. The torsion spring 21 can reset the second swinging member 14 in time.

[0057] Example 3

[0058] The features of the third embodiment are basically the same as those of the first embodiment, except that the second swinging member 14 is a triangular plate, the second swinging member 14 has high strength and is not easily broken, and the second pin shaft 16 is installed at the third end corner of the second swinging member 14 .

Claims

1. A card-lifting mechanism for driving a card-lifting plate to rise and fall, comprising a card-lifting frame (10), a card-lifting frame (11) for lifting mahjong tiles to a tabletop, a connecting rod assembly for driving the card-lifting frame (11) to rise and fall, and a driving member for driving the connecting rod assembly to move, wherein one end of the card-lifting frame (11) is hinged to the card-lifting frame (10), and the other end thereof is connected to the connecting rod assembly; characterized in that: The connecting rod assembly comprises a first swinging member (12) for driving the card lifting plate (11) to rise and fall, a pull rod (13) connected to the other end of the first swinging member (12), and a second swinging member (14) connected to the other end of the pull rod (13); The first swinging member (12) is hinged on the card storage rack (10) through a first pin shaft (15), and the pull rod (13) pulls the first swinging member (12) to swing and drives the card raising plate (11) to rise and fall; The pull rod (13) is mounted on the card storage rack (10) and performs linear reciprocating motion thereon; The second swinging member (14) is hinged on the card storage rack (10) through a second pin shaft (16), and the driving member drives the second swinging member (14) to swing and drives the pull rod (13) to move.

2. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 1, characterized in that: A linear track groove (101) is provided on the card storage rack (10), a pull rod (13) is installed in the track groove (101), and a positioning block (17) for limiting the pull rod (13) on the track groove (101) is installed on the card storage rack (10).

3. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 2, characterized in that: The pull rod (13) is provided with a waist-shaped hole (131), and the bottom of the track groove (101) is provided with a positioning column (102). When the pull rod (13) is installed in the track groove (101), the positioning column (102) extends into the waist-shaped hole (131).

4. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 3, characterized in that: The two ends of the positioning block (17) are fastened to the card storage rack (10) at both sides of the track groove (101) by screws, and the positioning block (17) is also threadedly connected to the positioning column (102) by another screw.

5. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 1, characterized in that: The first swing member (12) comprises a shaft sleeve (121) and a first swing arm (122) and a second swing arm (123) arranged on both sides of the shaft sleeve (121); one end of the first pin shaft (15) is mounted on the shaft sleeve (121) and the other end thereof is mounted on the card storage rack (10); the first swing arm (122) is connected to the card lifting plate (11) and drives the lifting plate to move up and down; the second swing arm (123) is connected to the pull rod (13).

6. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 5, characterized in that: A first roller (18) is installed at the end of the first swing arm (122), a shifting block (19) is installed at the lower end of the card raising plate (11), and a shifting groove (191) is provided on the shifting block (19). The first swing arm (122) swings and drives the first roller (18) to enter the shifting groove (191), and the first swing arm (122) swings and drives the card raising plate (11) to rise and fall.

7. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 5, characterized in that: A second roller (20) is installed at the end of the second swing arm (123), and a first strip-shaped hole (132) arranged vertically is provided at the end of the pull rod (13). The second roller (20) is installed in the first strip-shaped hole (132) and moves therein.

8. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 1, characterized in that: A third roller is installed at the end of the second swinging member (14), and a second strip hole (133) is arranged transversely at the other end of the pull rod (13), and the third roller is installed in the second strip hole (133) and moves therein.

9. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 1, characterized in that: The second swinging member (14) is provided with a limiting groove (141), and the second pin shaft (16) is sleeved with a torsion spring (21), one end of the torsion spring (21) abuts against the groove wall of the limiting groove (141), and the other end thereof abuts against the card storage frame (10).

10. The card-lifting mechanism for driving the card-lifting plate to rise and fall according to claim 1, characterized in that: The second swinging member (14) is a triangular plate, and the second pin shaft (16) is installed at the third end corner of the second swinging member (14).

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