Doll catching machine

Abstract

The utility model discloses a doll catching machine. The doll catching machine comprises a shell, a rotating shaft, a driving gear, an intermediate gear, a motor and an elastic seat, the rotating shaft is rotatably arranged on the shell, and two rolling wheel assemblies are connected to the rotating shaft. The driving gear is connected to the rotating shaft. The intermediate gear is rotatably arranged on the shell and provided with a large gear and a small gear, and the small gear is meshed with the driving gear. The motor is arranged in the shell, an output shaft of the motor is connected with a worm, and the worm is meshed with the large gear. The elastic seat comprises a connecting seat, an abutting block, an elastic piece and a bent elastic strip, the connecting seat is connected to the shell, the two ends of the elastic strip are connected with the connecting seat and the abutting block respectively, and the two ends of the elastic piece abut against the abutting block and the connecting seat respectively; the rolling wheel assembly is provided with a circumferential end face, and the abutting block abuts against the circumferential end face. The elastic seat of the brake rolling wheel assembly of the doll catching machine is an integrated piece which is assembled in advance, installation can be completed by directly connecting the connecting seat and the shell, and installation is quite convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of toys, in particular to a claw crane for grabbing dolls. Background Art

[0002] The claw crane, also known as the doll grabbing machine, belongs to a gift vending machine. The principle is that the user has to control the arm by his own skills to obtain the desired item, which is generally a plush toy or the like. It can exercise people's hand-eye coordination ability and sense of direction, so it is widely popular among children and teenagers in China. At the same time, it can also be used as a children's educational toy.

[0003] A driving component, a transmission component, a reel component and a mechanical claw component are arranged in the shell of the claw crane. The action instructions of the user operating the handle are transmitted to the driving component, and the driving component drives the reel group to rotate through the transmission component. The reel component drives the mechanical claw component to realize the functions of lifting and grabbing of the mechanical claw. However, in the prior art, as disclosed in the utility model patent with the publication number CN217751464U, the driving component includes a motor and a reduction gear set. The reduction ratio of the gears is small, and the output torque that can be achieved is small. If the output speed of the motor is to be reduced to a speed suitable for the lifting and grabbing of the mechanical claw, at least three reduction gears are required to achieve the required transmission ratio. The all-gear transmission has problems such as large transmission noise and easy wear of the gears. Using a larger number of reduction gears not only increases the probability of the above problems, but also has a higher material cost.

[0004] Furthermore, the accuracy of operating the claw crane has a great impact on the user experience. Therefore, the claw crane is provided with a braking structure for the reel component, such as the buffering component and the damping component disclosed in the utility model with the publication number CN 216725738 U. Among them, the buffering component includes a spring and a limit block that are separately arranged, and they need to be installed separately during assembly. Especially due to the presence of the spring, it is more laborious to install them separately. Moreover, the buffering component is arranged on the end face of the reel component, which affects the setting of other structures such as support and stability on one side of the end face.

[0005] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0006] The utility model provides a claw crane for grabbing dolls.

[0007] The present application provides the following technical solutions:

[0008] A claw crane for grabbing dolls, comprising:

[0009] A housing;

[0010] A rotating shaft, the rotating shaft is rotatably arranged in the housing, and two reel components are connected to the rotating shaft. The reel components are used for winding or releasing the suspension ropes;

[0011] A driving gear, which is connected to the rotating shaft;

[0012] An intermediate gear, which is rotatably arranged on the housing. The intermediate gear has a large gear and a small gear, and the small gear meshes with the driving gear;

[0013] A motor, which is arranged on the housing. A worm is connected to the output shaft of the motor, and the worm meshes with the large gear;

[0014] An elastic seat, which includes a connecting seat, a pressing block, an elastic member and a bent elastic strip. The connecting seat is connected to the housing. One end of the elastic strip is connected to the connecting seat, and the other end of the elastic strip is connected to the pressing block. The elastic member is located between the connecting seat and the pressing block, and two ends of the elastic member respectively press against the pressing block and the connecting seat; The reel assembly has a circumferential end face, and the pressing block presses against the circumferential end face.

[0015] Preferably, the rotation axes of the intermediate gear and the driving gear are parallel, and the rotation axis of the worm is perpendicular to the rotation axis of the intermediate gear.

[0016] Preferably, the intermediate gear has a shaft body and a spring;

[0017] The large gear portion is connected to the shaft body, and the large gear has a first clutch tooth block;

[0018] The small gear portion is slidably and rotatably connected to the shaft body, and the small gear has a second clutch tooth block;

[0019] The spring is arranged in the housing, and the spring presses against the small gear, so that the second clutch tooth block meshes with the first clutch tooth block, and the rotation of the large gear can drive the rotation of the small gear.

[0020] Preferably, an outer flange is arranged on the shaft body;

[0021] The spring is sleeved on the shaft body, and two ends of the spring respectively press against the outer flange and the small gear.

[0022] Preferably, the housing includes a transverse housing and a longitudinal housing vertically connected to the transverse housing;

[0023] The motor is arranged on the longitudinal housing;

[0024] The driving gear and the intermediate gear are both arranged on the transverse housing.

[0025] Preferably, the reel assembly includes a first reel and a second reel;

[0026] The first winding wheel is connected to the rotating shaft, and the first winding wheel rotates synchronously with the rotating shaft. An arc-shaped driving rib is arranged on the first winding wheel in the circumferential direction, and a gap area is formed between the two ends of the driving rib;

[0027] The second winding wheel is rotatably arranged on the rotating shaft, and a passive convex block is arranged on the second winding wheel, and the passive convex block is located in the gap area.

[0028] Preferably, the circumferential end face is arranged on the first winding wheel.

[0029] Preferably, a plurality of convex ribs are arranged on the circumferential end face, and the convex ribs are arranged in sequence along the extending direction of the circumferential end face.

[0030] Preferably, a slot is arranged on the housing, and the connecting seat is inserted into the slot.

[0031] By adopting the above technical solutions, the present application has the following beneficial effects:

[0032] For the claw crane of the present application, the transmission and cooperation mode of the gear and the worm is adopted to decelerate the power output of the motor. The worm drive has a larger reduction ratio than the pure gear drive, and can also achieve a larger output torque. It can reduce the use of gears, reduce the noise generated during transmission, and has better durability than the full gear reduction. Moreover, the elastic seat of the braking winding wheel assembly of the claw crane of the present application is a pre-assembled integral part. During installation, the connecting seat and the housing can be directly connected to complete the installation, making the installation very convenient. Furthermore, the elastic seat cooperates with the circumferential surface of the winding wheel assembly, and setting it at any position on the circumferential surface will not affect the setting of the shaft support structure of the winding wheel assembly, and thus can also ensure the stability of the support of the winding wheel assembly. Description of the Drawings

[0033] The drawings, as a part of the present application, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the drawings in the following description are only some embodiments, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0034] Figure 1 It is a partial structural schematic diagram of the claw crane provided by the embodiment of the present invention;

[0035] Figure 2 is Figure 1 A structural schematic diagram after removing the suspension rope, the claw and part of the outer shell;

[0036] Figure 3 is Figure 2Partial enlarged view in;

[0037] Figure 4 Structural schematic diagram of the pinion of the claw crane provided by the embodiment of the present utility model;

[0038] Figure 5 Structural schematic diagram of the large gear of the claw crane provided by the embodiment of the present utility model;

[0039] Figure 6 is Figure 2 Another perspective view of;

[0040] Figure 7 is Figure 6 Partial enlarged view in;

[0041] Figure 8 Partial structural schematic diagram of the first reel of the claw crane provided by the embodiment of the present utility model;

[0042] Figure 9 Partial structural schematic diagram of the second reel of the claw crane provided by the embodiment of the present utility model;

[0043] Figure 10 Partial structural schematic diagram of the slot of the claw crane provided by the embodiment of the present utility model;

[0044] Figure 11 Structural schematic diagram of the elastic seat of the claw crane provided by the embodiment of the present utility model.

[0045] In the figure: housing 1, transverse housing 11, longitudinal housing 12, slot 13, rotating shaft 2, driving gear 3, intermediate gear 4, large gear 41, first clutch tooth block 411, pinion 42, second clutch tooth block 421, shaft body 43, spring 44, outer flange 45, motor 5, reel assembly 6, first reel 61, active convex strip 611, gap area 612, second reel 62, passive convex block 621, suspension rope 7, worm 8, mating gear 91, driven gear 92, elastic seat 10, connecting seat 101, elastic member 102, abutting block 103, elastic strip 104, plug post 105. Detailed implementation manners

[0046] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0047] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] See Figures 1 to 11As shown in the figure, an embodiment of the present application provides a claw crane, which includes a housing 1, a rotating shaft 2, a driving gear 3, an intermediate gear 4, a motor 5 and an elastic seat 10. The rotating shaft 2 is rotatably arranged in the housing 1, and two reel assemblies 6 are connected to the rotating shaft 2. The reel assemblies 6 are used for winding or releasing a suspension rope 7. The driving gear 3 is connected to the rotating shaft 2. The intermediate gear 4 is rotatably arranged in the housing 1. The intermediate gear 4 has a large gear 41 and a small gear 42, and the small gear 42 meshes with the driving gear 3. The motor 5 is arranged in the housing 1, and a worm 8 is connected to the output shaft of the motor 5. The worm 8 meshes with the large gear 41. The elastic seat 10 includes a connecting seat 101, a pressing block 103, an elastic member 102 and a bent elastic strip 104. The connecting seat 101 is connected to the housing. One end of the elastic strip 104 is connected to the connecting seat 101, and the other end of the elastic strip 104 is connected to the pressing block 103. The elastic member 102 is located between the connecting seat 101 and the pressing block 103, and both ends of the elastic member 102 respectively abut against the pressing block 103 and the connecting seat 101; the reel assembly has a circumferential end face, and the pressing block 103 abuts against the circumferential end face. For the claw crane of the present application, a gear-worm transmission and cooperation method is adopted to decelerate the power output of the motor. The worm transmission has a larger reduction ratio than the pure gear transmission, and can also achieve a larger output torque. It can reduce the use of gears, reduce the noise generated during transmission, and has better durability compared with the full-gear deceleration. Moreover, the elastic seat for braking the reel assembly of the claw crane of the present application is a pre-assembled integrated part. During installation, the connecting seat can be directly connected to the housing to complete the installation, making the installation very convenient. Furthermore, the elastic seat cooperates with the circumferential surface of the reel assembly. No matter where it is set on the circumferential surface, it will not affect the setting of the shaft support structure of the reel assembly, and thus the stability of the support of the reel assembly can be ensured.

[0050] In actual operation, the action instruction of the user operating the handle is transmitted to the motor 5. The motor 5 starts, and the worm 8 arranged on the output shaft of the motor 5 drives the large gear 41 to rotate. The small gear 42 rotates synchronously with the large gear 41. The small gear 42 drives the driving gear 3 to rotate. The driving gear 3 drives the two reel assemblies 6 to rotate through the rotating shaft 2, so as to wind or release the suspension rope 7. The transmission and cooperation between the worm 8 and the large gear 41 realize a large proportion reduction of the output speed of the motor 5. The number of teeth of the driving gear 3 is greater than the number of teeth of the small gear 42. The transmission and cooperation between the small gear 42 and the driving gear 3 have the effect of further decelerating.

[0051] In some possible implementation schemes, such as Figure 2 and Figure 3As shown, the rotation axes 2 of the intermediate gear 4 and the driving gear 3 are parallel, and the rotation axis 2 of the worm 8 is perpendicular to the rotation axis 2 of the intermediate gear 4. Both the intermediate gear 4 and the driving gear 3 are gears, and transmission meshing can only be achieved when their rotation axes 2 are parallel. The worm 8 and the intermediate gear 4 are a gear-worm combination, and transmission meshing can only be achieved when their rotation axes 2 are perpendicular.

[0052] In some possible embodiments, such as Figures 2 to 5 As shown, the intermediate gear 4 has a shaft body 43 and a spring 44. The large gear 41 is connected to the shaft body 43. The large gear 41 has a first clutch tooth. The small gear 42 is slidably and rotatably connected to the shaft body 43. The small gear 42 has a second clutch tooth block 421. The spring 44 is disposed within the housing 1, and the spring 44 abuts against the small gear 42, such that the second clutch tooth block 421 meshes with the first clutch tooth block 411, and rotation of the large gear 41 can drive rotation of the small gear 42. In a normal operating state, the spring 44 abuts the second clutch block to mesh with the first clutch block, and the large gear 41 can drive the small gear 42 to rotate. When situations such as the mechanical claw or the suspension rope 7 being accidentally hooked occur, it may cause the driving gear 3 and the connected small gear 42 to be unable to rotate or unable to reach the required rotational speed. At this time, the small gear 42 abuts the spring 44 to further compress the spring 44, and the first and second clutch blocks disengage, resulting in a situation where the rotational speed of the large gear 41 is greater than that of the small gear 42. In this way, the motor 5 can be protected when situations such as the mechanical claw or the suspension rope 7 being accidentally hooked occur, preventing the motor 5 from burning out.

[0053] In some possible embodiments, an outer flange 45 is provided on the shaft body 43. The spring 44 is sleeved on the shaft body 43, and both ends of the spring 44 respectively abut against the outer flange 45 and the small gear 42. The outer flange 45 limits the spring 44, ensuring that the spring 44 can provide an appropriate elastic force to the small gear 42.

[0054] In some possible embodiments, such as Figure 1 and Figure 2 As shown, the housing 1 includes a transverse housing 11 and a longitudinal housing 12 vertically connected to the transverse housing 11. The motor 5 is disposed in the longitudinal housing 12, and the driving gear 3 and the intermediate gear 4 are both disposed in the transverse housing 11. Since the rotation direction of the worm 8 needs to be perpendicular to the rotation direction of the rotation shaft 2, the motor 5 and other transmission structures are separately arranged in the longitudinal housing 12 and the transverse housing 11. The layout is reasonable, the space utilization rate is high, and it can better meet the requirements of miniaturization of the claw crane.

[0055] In some possible embodiments, a mating gear 91 is provided at one end of the rotating shaft 2 facing away from the driving gear 3. A driven gear 92 is rotatably provided on the housing 1, and the driven gear 92 meshes with the mating gear 91. Gears are provided at both ends of the rotating shaft 2, which can ensure that both ends of the rotating shaft 2 are limited, and the rotation of the rotating shaft 2 is more stable. Secondly, the cooperation between the mating gear 91 and the driven gear 92 can also make the rotating shaft 2 stop immediately when the user controls the motor 5 to stop rotating, without being affected by inertia, making the control more accurate.

[0056] In some possible embodiments, as Figure 2 , Figures 6 to 9 shown, the reel assembly 6 includes a first reel 61 and a second reel 62. The first reel 61 is connected to the rotating shaft 2, and the first reel rotates synchronously with the rotating shaft 2. An arc-shaped active rib 611 is provided on the first reel 61 in the circumferential direction, and a gap area 612 is formed between both ends of the active rib 611. The second reel 62 is rotatably provided on the rotating shaft 2, and a passive bump 621 is provided on the second reel 62, and the passive bump 621 is located in the gap area 612. The first reel 61 is driven by the rotating shaft 2 to rotate, and the second reel 62 is driven by the first reel 61 to rotate. After the active rib 611 abuts against the passive bump 621 after the first reel 61 rotates a certain angle, the second reel 62 starts to rotate. No matter which direction the second reel 62 rotates, it lags behind the arc of the gap area 612 of the first reel 61. The cooperation relationship between the first reel 61 and the second reel 62 is a common setting in existing claw machines and is a conventional technique in the art, and has been fully disclosed in the patent with the publication number CN217751464U. The function of the cooperation between the first reel 61 and the second reel 62 in this application is the same as the function of the cooperation between the first reel 61 and the second reel 62 in the patent with the publication number CN217751464U.

[0057] In some possible embodiments, as Figure 2 , Figure 6 , Figure 7 shown, the first reel 61 has a circumferential end face, and an elastic seat 10 is provided on the housing 1, and the elastic seat 10 abuts against the circumferential end face. The pressure provided by the elastic seat 10 to the first reel 61 will not affect the rotation of the first reel 61 driven by the motor 5, but can immediately brake the first reel 61 after the motor 5 stops rotating, and the first reel 61 will not continue to rotate due to inertia, preventing the over-lifting of the claw and making the control more accurate.

[0058] In some possible embodiments, a plurality of convex ribs are provided on the circumferential end face, and the convex ribs are arranged in sequence along the extending direction of the circumferential end face. The contact between the convex ribs and the rubber block increases the friction force, ensuring faster braking and further improving the accuracy of control.

[0059] Further, the abutting block is a rubber block. One end of the elastic member 102 is connected to the connecting seat 101, and the other end is connected to the rubber block. The side of the rubber block away from the elastic member 102 abuts against the circumferential end face of the first reel 61. The elastic member 102 can be a spring, and the elastic member 102 also provides elastic force for the abutting block 103 to keep the abutting block 103 in abutment with the first reel 61.

[0060] Further, insertion posts 105 are provided on the opposite sides of the connecting seat and the abutting block, and the two ends of the spring are respectively inserted into the two insertion posts 105.

[0061] In some possible implementation manners, as Figure 10 、 Figure 11 shown, a slot 13 is provided on the housing, and the connecting seat is inserted into the slot 13.

[0062] Further, the elastic strip is in a "C" - shaped structure, and the abutting block and the connecting seat are respectively connected to the two ends of the "C" - shaped structure.

[0063] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details in detail, nor do they limit the application to the specific implementation manners described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present application, so that those skilled in the art can understand and utilize the present application well. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A claw machine, characterized in that: include: case; A rotating shaft, the rotating shaft is rotatably disposed on the housing, and two reel assemblies are connected to the rotating shaft, and the reel assemblies are used to wind or release the sling; A driving gear connected to the rotating shaft; An intermediate gear, the intermediate gear is rotatably disposed on the housing, the intermediate gear has a large gear and a small gear, and the small gear is meshed with the driving gear; A motor, wherein the motor is arranged in the housing, an output shaft of the motor is connected to a worm, and the worm is meshed with the large gear; An elastic seat, the elastic seat includes a connecting seat, a push block, an elastic member and a bent elastic strip, the connecting seat is connected to the shell, one end of the elastic strip is connected to the connecting seat, and the other end of the elastic strip is connected to the push block, the elastic member is located between the connecting seat and the push block, and two ends of the elastic member push against the push block and the connecting seat respectively; the reel assembly has a circumferential end surface, and the push block pushes against the circumferential end surface.

2. The claw machine according to claim 1, characterized in that: The rotation axes of the intermediate gear and the driving gear are parallel, and the rotation axis of the worm is perpendicular to the rotation axis of the intermediate gear.

3. The claw machine according to claim 2, characterized in that: The intermediate gear has a shaft and a spring; The large gear part is connected to the shaft body, and the large gear has a first clutch gear block; The pinion gear part is slidably and rotatably connected to the shaft body, and the pinion gear has a second clutch gear block; The spring is arranged in the housing, and the spring presses against the small gear, so that the second clutch gear block is meshed with the first clutch gear block, and the rotation of the large gear can drive the small gear to rotate.

4. The claw machine according to claim 3, characterized in that: An outer flange is arranged on the shaft body; The spring is sleeved on the shaft body, and two ends of the spring respectively abut against the outer flange and the pinion gear.

5. The claw machine according to claim 4, characterized in that: The housing comprises a transverse shell and a longitudinal shell vertically connected to the transverse shell; The motor is arranged on the longitudinal shell; The driving gear and the intermediate gear are both arranged on the transverse housing.

6. The claw machine according to claim 5, characterized in that: The reel assembly comprises a first reel and a second reel; The first reel is connected to the rotating shaft, the first reel rotates synchronously with the rotating shaft, the first reel is provided with an arc-shaped active convex strip along the circumference, and a gap area is formed between the two ends of the active convex strip; The second reel is rotatably disposed on the rotating shaft. A passive protrusion is disposed on the second reel. The passive protrusion is located in the gap area.

7. The claw machine according to claim 6, characterized in that: The circumferential end surface is arranged on the first reel.

8. The claw machine according to claim 7, characterized in that: A plurality of convex ribs are arranged on the circumferential end surface, and each of the convex ribs is arranged in sequence along the extension direction of the circumferential end surface.

9. The claw machine according to claim 1, characterized in that: The housing is provided with a slot, and the connecting socket is plugged into the slot.

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