Force adjusting structure for clamping jaw of gift machine
By combining the designed gripper force adjustment structure, the problem of the gripper being unable to adapt to dolls or gifts of different weights and sizes is solved, thereby improving the flexibility and gripping efficiency of the gripper.
Patent Information
- Application Number
- CN202520398125.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing gripper structures cannot effectively handle dolls or gifts of different weights and sizes, resulting in insufficient gripping force and limiting the applicability and efficiency of the grippers.
It adopts a combined design including a housing, suspension frame, motor, lifting mechanism, connecting mechanism, tension adjustment mechanism and gripper mechanism. The force of the gripper can be adjusted by the cooperation of lifting screw, lifting nut, guide post, lifting ring, connecting tube, hose spring, screw post and adjusting screw.
The improved gripper flexibility and success rate allow it to accommodate toys or gifts of different weights and sizes, enhancing its applicability and gripping efficiency.
Smart Images

Figure CN223887393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of gift machines, and in particular to a gripper force adjustment structure for gift machines. Background Technology
[0002] A claw machine (or game machine) is a machine containing multiple plush toys or prizes. Users control the movement of the claws using joysticks and buttons to grab the desired item. These claws are typically driven by electromagnets. According to the design in Taiwan Patent No. I760767, the electromagnets control the opening and closing of the claws to achieve the grabbing purpose.
[0003] However, using electromagnets to drive the grippers has certain limitations, as the clamping force is insufficient to handle dolls or gifts of varying weights and sizes, thus restricting their practical use due to environmental limitations. Therefore, existing gripper structures urgently need improvement to enhance their applicability and efficiency. Utility Model Content
[0004] In view of the problems and deficiencies of the prior art, one objective of this utility model is to provide a force adjustment structure for the gripper of a gift machine through structural innovation, so as to overcome the deficiencies of the prior art.
[0005] To achieve the above objectives, this utility model proposes a claw force adjustment structure for a gift machine, comprising: a housing, including a cylindrical body and a bottom cover assembled at the bottom end of the cylindrical body, and the bottom cover having a plurality of bottom cover through holes;
[0006] A suspension bracket is assembled with the housing and housed within the housing;
[0007] A motor is connected to the suspension bracket and disposed within the housing;
[0008] A lifting mechanism, which is connected to the suspension frame, includes:
[0009] A lifting screw, with the motor connected in series at one end;
[0010] A lifting nut is screwed onto the outer periphery of the lifting screw.
[0011] Multiple guide pillars, each end of which is respectively connected to the bottom cover and the suspension bracket; and
[0012] A lifting ring is assembled at the bottom of the lifting nut, and has a ring shaft hole, a plurality of ring holes and a plurality of screw holes respectively passing through the lifting ring. The ring shaft hole provides for the assembly of the lifting nut, and each of the ring holes provides for the extension of each of the guide posts.
[0013] A connecting mechanism, one end of which extends through the bottom cover and is connected in series with the lifting mechanism, includes:
[0014] A plurality of connecting tubes, each having a tube wing at one end and a movable end that extends through matching bottom cover perforations; a lifting plate having a plurality of plate perforations forming a plate through the lifting plate, providing for the corresponding connecting tubes to be inserted, assembled, and move together with it; and
[0015] A plurality of tension adjustment mechanisms are respectively connected to each of the matching connecting pipe assemblies, wherein each tension adjustment mechanism includes:
[0016] A flexible spring is inserted and accommodated within one of the connecting tubes;
[0017] A threaded post, after being threaded through the corresponding matching threaded holes, is tightly threaded to one end of the flexible hose spring; and
[0018] An adjusting stud, after being tightly screwed to one end of the flexible hose spring, compresses and forces the cross-section of each matching connecting pipe end; and
[0019] A gripper mechanism is connected to the cylinder body and the lifting plate, and moves together with the lifting plate.
[0020] Furthermore, the adjusting stud has a rod body and a rod head respectively located at both ends of the adjusting stud; the rod body, after passing through one end of each matching connecting tube, is tightly screwed to one end of each matching flexible hose spring; and
[0021] The rod head abuts against one end of the matching connecting pipe.
[0022] Furthermore, a top cover is provided at the top of the cylinder body.
[0023] Furthermore, the gripper mechanism includes:
[0024] A three-pronged component is assembled at the bottom of the lifting platform;
[0025] A plurality of grippers, one end of which is pivotally connected to the three-pronged component; and
[0026] A plurality of gripper pivot arms, one end of which is pivotally connected to the cylinder body and the other end of which is pivotally connected to each of the matching grippers.
[0027] Furthermore, the lifting screw is selected from high-lead screws.
[0028] Furthermore, the suspension frame includes a first plate and a second plate arranged symmetrically, and a plurality of suspension rods connecting the first plate and the second plate.
[0029] Furthermore, the motor assembly is located on the second plate and has a motor output shaft extending through the second plate and connected in series with the lifting screw.
[0030] The aforementioned components provide a preset tension to cause the gripper mechanism to retract and extend. Attached Figure Description
[0031] Figure 1 This is a perspective view of an embodiment of the utility model;
[0032] Figure 2 yes Figure 1 The diagram shows an exploded view of some components in the embodiment shown.
[0033] Figure 3 yes Figure 2 A schematic diagram of partial components in the embodiment shown;
[0034] Figure 4 yes Figure 3 Another perspective view of the embodiment shown;
[0035] Figure 5 yes Figure 1 The illustrated embodiment is a cross-sectional schematic diagram;
[0036] Figure 6 yes Figure 5 A partial schematic diagram of the embodiment shown.
[0037] 10: Shell
[0038] 11: Body section
[0039] 12: Top Cover
[0040] 13: Bottom cover
[0041] 131: Bottom cover perforation
[0042] 20: Suspension bracket
[0043] 21: First Slab
[0044] 22: Second plate
[0045] 23: Suspension rod
[0046] 30: Motor
[0047] 31: Motor output shaft
[0048] 40: Lifting mechanism
[0049] 41: Lifting Screw
[0050] 42: Lifting nut
[0051] 43: Guide post
[0052] 45: Lifting Ring
[0053] 451: Ring shaft hole
[0054] 452: Ring Hole
[0055] 453: Screw hole
[0056] 50: Connecting mechanism
[0057] 51: Connecting pipe
[0058] 511: Tube Wing
[0059] 52:Lifting plate
[0060] 521: Plate perforation
[0061] 60: Tension Adjustment Mechanism
[0062] 61: Flexible hose spring
[0063] 62:Screw post
[0064] 63: Adjusting stud
[0065] 631: Shaft
[0066] 632: Clubhead
[0067] 70: Gripper Mechanism
[0068] 71: Trident component
[0069] 72: Gripper
[0070] 73: Gripper pivot arm Detailed Implementation
[0071] The following description, with reference to the accompanying drawings, further illustrates the embodiments of the gripper force adjustment structure of this utility model for gift machines. Various objects in the embodiments are depicted according to the applicable scale, size, deformation, or displacement, rather than being drawn to the scale of actual components, as will be stated above. Furthermore, elements with identical or symmetrical arrangements in the remaining embodiments are represented by the same number. Additionally, directional terms such as "front," "back," "left," "right," "up," "down," "inner," and "outer" in the descriptions of the embodiments listed below are used according to the specified view direction and should not be construed as limiting the scope of this utility model.
[0072] Please see Figures 1 to 6 As shown, the present invention relates to a gripper force adjustment structure for a gift machine, comprising a housing 10, a suspension bracket 20, a motor 30, a lifting mechanism 40, a connecting mechanism 50, multiple tension adjustment mechanisms 60, and a gripper mechanism 70.
[0073] The aforementioned housing 10 includes a cylindrical body 11, a top cover 12, and a bottom cover 13.
[0074] The cylindrical body 11 has a hollow tubular profile.
[0075] The top cover 12 is fitted onto the top of the cylindrical body 11 to close the cross section at the top of the cylindrical body 11.
[0076] The bottom cover 13 is assembled at the bottom end of the cylinder body 11, sealing the bottom section of the cylinder body 11. The bottom cover 13 has a plurality of bottom cover through holes 131 formed through the bottom cover 13.
[0077] The aforementioned suspension frame 20 is assembled with the housing 10 and housed within the cylindrical body 11. It includes a first plate 21 and a second plate 22 arranged symmetrically, and a plurality of suspension rods 23 connecting the first and second plates 21 and 22.
[0078] The first plate 21 is stacked on the top surface of the cylindrical body 11 and is disposed between the top cover 12 and the cylindrical body 11.
[0079] The aforementioned motor 30 is assembled on the second plate 22, and the motor output shaft 31 of the motor 30 extends through the second plate 22.
[0080] The aforementioned lifting mechanism 40 is connected to the suspension frame 20 and connected in series with the motor 30, and includes a lifting screw 41, a lifting nut 42, a plurality of guide columns 43 and a lifting ring 45.
[0081] The lifting screw 41 is connected in series with the motor output shaft 31 and moves in tandem with it. In practice, the lifting screw 41 is selected from high-lead screws.
[0082] The lifting nut 42 is screwed onto the outer periphery of the lifting screw 41.
[0083] Each guide post 43 is connected at one end to the bottom cover 13 and at the other end to the suspension bracket 20.
[0084] The lifting ring 45 is assembled at the bottom of the lifting nut 42 and moves together with it. The lifting ring 45 further has a ring shaft hole 451, a plurality of ring holes 452 and a plurality of screw holes 453, which are formed by penetrating the top and bottom of the lifting ring 45 respectively, wherein the ring shaft hole 451 provides a mounting for the lifting nut 42.
[0085] The aforementioned annular holes 452 are formed by the top and bottom of the lifting ring 45 and are arranged along the contour of the lifting ring 45 at a preset interval, so as to allow each guide post 43 to be movable and matched to be inserted.
[0086] The aforementioned screw holes 453 are formed by the top and bottom of the lifting ring 45 and are arranged along the contour of the lifting ring 45 at a preset interval.
[0087] The aforementioned connecting mechanism 50 extends through the housing 10 (bottom cover 13) at one end and is connected in series with the lifting mechanism 40, including a plurality of connecting pipes 51 and a lifting plate 52.
[0088] Each connecting tube 51 has a tube wing 511 at one end and a movable through-hole 131 of the bottom cover 13 that matches the bottom cover 13 at the other end. Each connecting tube 51 has a hollow tube shape with a pre-defined outline.
[0089] The lifting plate 52 has a plurality of plate through holes 521, which are formed by the top and bottom of the lifting plate 52, providing for the connection pipes 51 to be inserted and assembled and move together with it.
[0090] The aforementioned tension adjustment mechanism 60 is matched with each connecting pipe 51. Each tension adjustment mechanism 60 includes a flexible hose spring 61, a screw post 62, and an adjusting screw post 63.
[0091] Each of the hose springs 61 extends into the matching connecting tube 51.
[0092] Each of the threaded posts 62 is threaded through the threaded holes 453 of the lifting ring 45 and then tightly threaded to one end of the matching flexible hose spring 61.
[0093] Each adjusting stud 63 is tightly screwed to one end of each matching hose spring 61, thereby pressing against one end of each matching connecting pipe 51.
[0094] In practice, the adjusting stud 63 has a rod body 631 and a rod head 632 respectively located at both ends of the adjusting stud 63; wherein, the rod body 631 extends through one end of the connecting tube 51 and is tightly screwed to one end of the flexible hose spring 61. The rod head 632 abuts against the cross-section of one end of the connecting tube 51.
[0095] The aforementioned gripper mechanism 70 is connected to and moves in tandem with the lifting plate 52, and includes a three-pronged component 71, a plurality of grippers 72, and a plurality of gripper pivot arms 73.
[0096] The three-pronged component 71 has a preset outline and is assembled at the bottom of the lifting plate 52.
[0097] Each of the grippers 72 has one end pivotally connected to the three-pronged member 71, and the other end is a free end.
[0098] Each gripper pivot arm 73 has one end pivotally connected to the housing 10 (cylinder body 11), and the other end pivotally connected to the gripper 72 at a preset position.
[0099] Therefore, the above is an introduction to the components and assembly method of the preferred embodiment of the gift machine gripper force adjustment structure provided by this utility model. The operating features of the embodiment of this utility model are introduced below.
[0100] <The gripper 72 of the gripper mechanism 70 converges>
[0101] The motor 30 starts and drives the connected lifting screw 41, causing the lifting nut 42 to rise along the screw 41, which in turn drives the lifting ring 45 at the bottom to rise as well. During the process, the lifting ring 45 will simultaneously pull each hose spring 61. The ends of these hose springs 61 are connected to the adjusting studs 63 and abut against the corresponding connecting tubes 51, causing them to rise. At the same time, the connecting tubes 51 pass through the bottom cover through hole 131 of the bottom cover 13 and move upward.
[0102] When the lifting plate 52 rises due to the drive of the connecting pipe 51, the gripper mechanism 70, which moves in tandem with the lifting plate 52, rises, causing the free end of the gripper 72 to converge toward the center.
[0103] <Gripper 72 of gripper mechanism 70 is released>
[0104] To return the gripper 72 to the open state, simply stop the operation of the motor 30. At this time, the lifting screw 41 stops rotating, and the weight of the lifting nut 42 and the connecting components causes the lifting nut 42 to rotate and descend along the lifting screw 41. The other components operate in the reverse order of the above steps, causing the gripper 72 to unfold away from the center.
[0105] <Tension Adjustment of Tension Adjustment Mechanism 60>
[0106] The tension of the adjusting screw 63 can be adjusted by changing the stretch of the hose spring 61 through the screw 62 or the adjusting screw 63. This design not only improves the flexibility of the gripper 72, but also better accommodates dolls or gifts of different weights and sizes, increasing the success rate of grasping.
[0107] In addition, when the gripper mechanism 70 is used for large-volume gifts, the grippers 72 can exert stronger gripping force through the stretching and adjustment effect of each hose spring 61.
[0108] The above description is only a preferred embodiment of the present utility model and is intended to clarify the features of the present utility model. It is not intended to limit the scope of the embodiments of the present utility model. Equivalent changes made by those skilled in the art based on the present utility model, as well as changes known to those skilled in the art, should still fall within the scope of the present utility model.
Claims
1. A gripper force adjustment structure for a gift machine, characterized in that, include: A housing (10) includes a cylindrical body (11) and a bottom cover (13) disposed at the bottom end of the cylindrical body (11), and the bottom cover (13) has a plurality of bottom cover perforations (131); A suspension bracket (20) is assembled with the housing (10) and housed within the housing (10); A motor (30) is connected to the suspension bracket (20) and disposed within the housing (10); A lifting mechanism (40) is connected to the suspension frame (20) and includes: A lifting screw (41) is connected in series with the motor (30) at one end; A lifting nut (42) is screwed onto the outer periphery of the lifting screw (41); A plurality of guide pillars (43), each end of which is respectively connected to the bottom cover (13) and the suspension bracket (20); and A lifting ring (45) is assembled at the bottom of the lifting nut (42) and has a ring shaft hole (451), a plurality of ring holes (452) and a plurality of screw holes (453) respectively passing through the lifting ring (45). The ring shaft hole (451) provides for the assembly of the lifting nut (42), and each of the ring holes (452) provides for the passage of each of the guide posts (43). A connecting mechanism (50), one end of which extends through the bottom cover (13) and is connected in series with the lifting mechanism (40), includes: A plurality of connecting tubes (51), one end of which has a tube wing (511), and the other end of which can be movably extended through matching bottom cover perforations (131); A lifting plate (52) has a plurality of through holes (521) formed through the lifting plate (52), providing corresponding through holes for the connecting pipes (51) to be connected and move together; and Multiple tension adjustment mechanisms (60) are respectively connected to each of the matching connecting pipes (51), wherein each tension adjustment mechanism (60) includes: A flexible spring (61) is inserted and accommodated in one of the connecting tubes (51); A threaded post (62) is threaded through each of the corresponding threaded holes (453) and then tightly threaded to one end of the flexible hose spring (61); and An adjusting stud (63), after being tightly screwed to one end of the flexible hose spring (61), presses against the cross-section of one end of each matching connecting pipe (51); and A gripper mechanism (70) is connected to the cylinder body (11) and the lifting plate (52) and moves together with the lifting plate (52).
2. The gift machine gripper force adjustment structure as described in claim 1, characterized in that, The adjusting stud (63) has a rod body (631) and a rod head (632) respectively disposed at both ends of the adjusting stud (63); characterized in that: The rod body (631), after passing through one end of each matching connecting tube (51), is tightly screwed to one end of each matching flexible hose spring (61); and The rod head (632) abuts against one end of the cross-section of each of the matching connecting tubes (51).
3. The force adjustment structure for the gripper of the gift machine as described in claim 1, characterized in that, The top of the cylindrical body (11) is provided with a top cover (12).
4. The force adjustment structure for the gripper of the gift machine as described in claim 1, characterized in that, The gripper mechanism (70) includes: A three-pronged component (71) is assembled to the bottom end of the lifting plate (52); A plurality of grippers (72), one end of which is pivotally connected to the three-pronged component (71); and A plurality of gripper pivot arms (73) are pivotally connected at one end to the cylinder body (11) and at the other end to each of the matching grippers (72).
5. The force adjustment structure for the gripper of the gift machine as described in claim 1, characterized in that, The lifting screw (41) is selected from high lead screws.
6. The force adjustment structure for the gripper of the gift machine as described in claim 1, characterized in that, The suspension frame (20) includes a first plate (21) and a second plate (22) arranged symmetrically, and a plurality of suspension rods (23) connecting the first plate (21) and the second plate (22).
7. The force adjustment structure for the gripper of the gift machine as described in claim 6, characterized in that, The motor (30) Assembled on the second plate (22), it has a motor output shaft (31) extending through the second plate (22). And connected in series with the lifting screw (41).