Transverse driving mechanism of object grabbing machine, displacement transmission device and object grabbing toy machine

Abstract

The embodiment of the utility model discloses a transverse driving mechanism of an object grabbing machine, a displacement transmission device and an object grabbing toy machine, and the transverse driving mechanism of the object grabbing machine comprises a motor, a transmission wheel set and a clutch wheel set; the clutch wheel set comprises a walking gear, a first transmission gear and a friction connecting piece which are coaxially arranged. One of the opposite end faces of the walking gear and the first transmission gear is provided with a containing groove, and the other one is provided with an embedded protrusion embedded in the containing groove; the friction connecting piece comprises an axial section extending in the axial direction of the first transmission gear, and the axial section is clamped between the outer peripheral wall of the embedded protrusion and the peripheral side wall of the containing groove so as to be in friction connection with the walking gear and the first transmission gear in a clutch mode. The motor drives the first transmission gear to be in linkage with the walking gear through the axial section to rotate synchronously, and when the walking gear stops rotating, the motor drives the first transmission gear to rotate relative to the walking gear. According to the displacement transmission device of the grabbing machine, damage or abnormal sound of the internal transmission gear can be avoided when a movement fault occurs.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grab toys, in particular to a lateral driving mechanism of a grab toy machine, a displacement transmission device of the grab toy machine and the grab toy machine. BACKGROUND

[0002] In the modern entertainment industry, grab toy machines, especially doll machines, as a kind of popular amusement equipment, have penetrated into people's daily life. This kind of equipment usually drives the grabber (also commonly known as the crown block) to move in the front-back and left-right directions through a lateral driving mechanism, until it is accurately positioned above the target object, and then performs a lowering operation to attempt to grab the target object.

[0003] The core working mechanism of the grab toy machine lies in its accurate positioning ability and stable grabbing performance. In order to achieve this goal, the translational motion of the grabber is crucial. The lateral driving mechanism of the grab toy machine is often driven by a motor, which is equipped with a precise micro switch. As a key sensor component, the micro switch is responsible for detecting the real-time position of the grabber, and when the grabber reaches the preset end position or stops moving due to any obstruction, it sends a signal to the control system, thereby controlling the motor to stop running in time.

[0004] However, in actual use, the micro switch may fail for various reasons. For example, long-term operation and wear and tear can cause the sensitivity of the micro switch to decrease, or even completely fail. As a result, when the grabber moves laterally to the end position or stops moving due to obstruction, if the micro switch fails to send a stop signal in time, the motor will continue to run. In this case, the internal transmission gears of the lateral driving mechanism will bear excessive load and unnecessary wear and tear. Long-term operation in this abnormal state, the transmission gears are likely to be damaged, such as tooth surface wear, breakage, etc. At the same time, due to the continuous operation of the motor and the abnormal state of the transmission system, abnormal noise may also be produced, affecting the normal operation of the doll machine and the user experience.

[0005] The above content is only used to assist in understanding the technical solutions of the utility model, and does not represent the acknowledgement of the above content as prior art. CONTENT OF THE UTILITY MODEL

[0006] In view of the above problems, the utility model provides a lateral driving mechanism of a grab toy machine, aiming to solve the technical problem that the internal transmission gears of the grab toy machine will be damaged or produce abnormal noise when the lateral movement fails.

[0007] To achieve the above purpose, the lateral driving mechanism of the grab toy machine provided by the utility model comprises a motor, a transmission wheel set and a clutch wheel set; wherein,

[0008] The clutch wheel set comprises a walking gear, a first transmission gear and a friction connecting piece arranged coaxially;

[0009] The walking gear has a first end face adjacent to the first transmission gear, the first transmission gear has a second end face adjacent to the walking gear, one of the first end face and the second end face is provided with a receiving groove, and the other is provided with an embedded protrusion embedded in the receiving groove;

[0010] The frictional connecting piece includes an axial segment extending along the axial direction of the first transmission gear, the axial segment is sleeved on the outer periphery of the embedded protrusion and clamped between the outer peripheral wall of the embedded protrusion and the circumferential side wall of the receiving groove, so as to frictionally connect the walking gear and the first transmission gear in a clutching manner;

[0011] The motor is in transmission connection with the first transmission gear through the transmission wheel set and drives the first transmission gear to rotate relative to the walking gear when the walking gear stops rotating.

[0012] In an embodiment, the clutching wheel set further includes a central shaft penetrating and fixedly connected with the walking gear, and the first transmission gear is rotatably sleeved on the outer periphery of the central shaft, so that the first transmission gear can rotate around the central shaft relative to the walking gear when the walking gear stops rotating.

[0013] In an embodiment, the frictional connecting piece further includes a radial segment connected with the axial segment and extending along the radial direction of the axial segment, the radial segment is clamped between the first end face and the second end face, and covers the slot opening of the receiving groove.

[0014] In an embodiment, the frictional connecting piece is made of an elastic material.

[0015] In an embodiment, the transmission wheel set includes a first worm in transmission connection with the motor, the first worm is in meshing connection with the first transmission gear, so as to transmission connect the motor and the first transmission gear.

[0016] In an embodiment, the transmission wheel set further includes a second worm and a second transmission gear, the second worm is coaxially fixedly connected with the output shaft of the motor and extends along the axial direction of the walking gear, the second transmission gear is coaxially fixedly connected with the first worm, and the second worm is in meshing connection with the second transmission gear, so that the motor drives the second worm to drive the second transmission gear to drive the first worm to rotate.

[0017] In an embodiment, the lateral driving mechanism of the object grabbing machine further comprises a mounting shell having opposite limiting walls in the axial direction of the walking gear, the clutch wheel set is mounted in the mounting shell and located between the two limiting walls, and the sum of the spacing between the two end faces of the walking gear and the first transmission gear which are located opposite to each other and adjacent to the limiting walls in the axial direction is less than the extension length of the axial section in the axial direction.

[0018] The utility model discloses still propose a kind of displacement transmission device of object grabbing machine, comprising:

[0019] mounting frame, rack rail extending laterally is equipped on the mounting frame;And,

[0020] Lateral driving mechanism, the lateral driving mechanism is the lateral driving mechanism of object grabbing machine in any one embodiment as above, the walking gear of the lateral driving mechanism is engaged with the rack rail, to drive transmission wheel set by the motor of the lateral driving mechanism to drive the first transmission gear linkage walking gear reciprocating movement along the rack rail.

[0021] In an embodiment, the mounting frame includes a fixed frame and a movable frame, the movable frame is movably mounted on the fixed frame along a first direction; the rack rail includes a first rack extending along the first direction and a second rack extending along a second direction; the first rack is provided on the fixed frame, and the second rack is provided on the movable frame, and the first direction is perpendicular to the second direction;

[0022] The lateral driving mechanism is provided with two groups, and is mounted on the movable frame, the walking gear of one group of the lateral driving mechanism is engaged with the first rack, and the walking gear of the other group of the lateral driving mechanism is engaged with the second rack, so that the group of lateral driving mechanisms can drive the clamping mechanism to reciprocate along the second direction relative to the movable frame.

[0023] In an embodiment, the fixed frame includes a slide rail extending opposite to and in the same direction as the first rack, one side of the movable frame is engaged with the first rack through the walking gear, and the other side is slidably connected with the slide rail.

[0024] In an embodiment, the displacement transmission device of the object grabbing machine further comprises a clamping mechanism, the clamping mechanism includes a movable seat, a gripper, a longitudinal driving mechanism and a transmission chain; the longitudinal driving mechanism is drivingly connected with the gripper through the transmission chain; the movable seat is slidably mounted in the movable frame along the second direction; the longitudinal driving mechanism and the lateral driving mechanism linked with the second rack are both mounted on the movable seat, so that the group of lateral driving mechanisms can drive the movable seat and the gripper to reciprocate along the second direction.

[0025] The utility model still puts forward a kind of snatch toy machine, including box, control unit and the displacement transmission device of snatch machine in any embodiment as above, the control unit and the displacement transmission device of snatch machine are installed in the box, the control unit is electrically connected with the motor of the transverse drive mechanism.

[0026] The displacement transmission device of the snatch machine, by making the transverse drive mechanism include clutch wheel group, when normal operation (walking gear is not subjected to external resistance), the first transmission gear of clutch wheel group and walking gear are fixed by the axial section of friction connecting piece friction engagement, the synchronous transmission of torque can be realized, then motor drive driving wheel group drives the rotation of first transmission gear, linkage walking gear rotates synchronously, to realize the reciprocating movement of walking gear on rack track, to drive the transverse reciprocating movement of clamping mechanism.

[0027] In addition, by making the friction connecting piece include the axial section extending along the axial direction of the first transmission gear, the end faces of the walking gear and the first transmission gear are provided with the embedding groove and the embedding protrusion embedded each other, and the axial section is clamped between the circumferential side wall of the embedding groove and the outer circumferential wall of the embedding protrusion. The friction contact area of the walking gear and the first transmission gear in the circumferential direction is effectively increased, so that the walking gear and the first transmission gear cannot be loosened or excessively displaced in the axial direction, compared with the clutching mode of clamping friction plate between the end faces of the walking gear and the first transmission gear, so that the axial section is fully utilized to realize the automatic clutching of the first transmission gear and the walking gear, without the need for additional spring to press the first transmission gear and the walking gear, therefore, only the walking gear, the first transmission gear and the axial section can realize the automatic clutching of the transverse drive mechanism, greatly reducing the number of parts, making the structure of the transverse drive mechanism more simple and compact, occupying small space, and being more conducive to realizing the miniaturization of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 A structure schematic view of one embodiment of the transverse driving mechanism of the object grabbing machine is shown;

[0030] Figure 2 For Figure 1 An exploded view of the transverse driving mechanism of the object grabbing machine is shown;

[0031] Figure 3 A structure schematic view of another embodiment of the transverse driving mechanism of the object grabbing machine is shown;

[0032] Figure 4 For Figure 3 An angle sectional view of the transverse driving mechanism of the object grabbing machine is shown;

[0033] Figure 5 A structure schematic view of one embodiment of the displacement transmission device of the object grabbing machine is shown;

[0034] Figure 6 For Figure 5 A structure schematic view of the moving frame part of the displacement transmission device of the object grabbing machine after part removal is shown;

[0035] Figure 7 For Figure 6 A structure schematic view of the driving mechanism installation shell part of the displacement transmission device of the object grabbing machine after part removal is shown;

[0036] Figure 8 For Figure 7 A top view of the displacement transmission device of the object grabbing machine is shown;

[0037] Figure 9 A structure schematic view of one embodiment of the moving frame of the displacement transmission device of the object grabbing machine is shown;

[0038] Figure 10 A schematic view of one embodiment of the assembly structure of the moving frame, two groups of transverse driving mechanisms and the grabbing mechanism of the object grabbing machine is shown;

[0039] Figure 11 A schematic view of one embodiment of the assembly structure of the grabbing mechanism and one group of transverse driving mechanisms of the object grabbing machine is shown.

[0040] Explanation of the attached drawing numbers:

[0041] Reference Name Reference Name Reference Name 10 Displacement transmission of the grabber 221 First worm 2371 Axial section 100 Mounting frame 222 Second worm 2372 Radial section 110 Rack rail 223 Second transmission gear 238 Central shaft 111 First rack 230 Clutch wheel set 240 Mounting housing 112 Second rack 231 Travel gear 241 Limiting wall 120 Fixing frame 232 First end face 300 Clamping mechanism 121 Slide rail 233 Receiving groove 310 Movable seat 130 Moving frame 234 First transmission gear 320 Grabbing hand 200 Transverse drive mechanism of the grabber 235 Second end face 330 Longitudinal drive mechanism 210 Motor 236 Embedding protrusion 340 Transmission chain 220 Transmission wheel set 237 Friction connection

[0042] The realization of the object of the utility model, functional features and advantages will be further explained in combination with embodiments and with reference to the attached drawings. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application. In addition, the technical solutions in each embodiment can be combined with each other, but the combination of the technical solutions should be based on the fact that a person of ordinary skill in the art can realize the combination, and when the combination of the technical solutions is contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist, and is also not within the protection scope of the present application.

[0044] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0045] In the embodiments of the present application, unless specifically defined and limited otherwise, the first feature is "on", "under", "above" or "below" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is lower than that of the second feature.

[0046] In the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, they can be fixed connection, or detachable connection, or integrated; they can be mechanical connection, or electrical connection, or communication with each other; they can be directly connected, or indirectly connected through an intermediate medium; they can be the internal connection of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For a person of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0047] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme.

[0048] The utility model provides a kind of transverse drive mechanism of grab machine, for driving grab toy machine, such as the lateral movement of the clamping mechanism of grab doll machine.

[0049] In the embodiments of the present application, please refer to Figures 1 to 4 The transverse drive mechanism 200 of the grab machine includes a motor 210, a transmission wheel set 220, and a clutch wheel set 230. The clutch wheel set 230 includes a walking gear 231, a first transmission gear 234, and a friction connecting piece 237 arranged coaxially.

[0050] The walking gear 231 has a first end face 232 adjacent to the first transmission gear 234, and the first transmission gear 234 has a second end face 235 adjacent to the walking gear 231. One of the first end face 232 and the second end face 235 is provided with a receiving groove 233, and the other is provided with an embedded protrusion 236 embedded in the receiving groove 233.

[0051] The friction connecting piece 237 includes an axial segment 2371 extending along the axial direction of the first transmission gear 234. The axial segment 2371 is sleeved on the outer periphery of the embedded protrusion 236 and clamped between the outer peripheral wall of the embedded protrusion 236 and the peripheral side wall of the receiving groove 233, so as to frictionally connect the walking gear 231 and the first transmission gear 234 in a clutching manner.

[0052] The motor 210 is drivingly connected to the first transmission gear 234 through the transmission wheel set 220 and drives the walking gear 231 to rotate synchronously through the axial segment 2371. When the walking gear 231 stops rotating, the first transmission gear 234 is driven to rotate relative to the walking gear 231.

[0053] In the present embodiment, the transverse drive mechanism 200 is used to drive the clamping mechanism 300 to move reciprocally in the transverse direction. The transmission wheel set 220 can be a gear train structure composed of multiple gears or a gear train structure composed of a worm and a gear, as long as it can achieve the driving connection between the motor 210 and the first transmission gear 234. The specific structure of the transmission wheel set 220 is not limited herein.

[0054] The specific size parameters of the walking gear 231 and the first transmission gear 234 can be designed according to actual requirements, and are not specifically limited here. The walking gear 231 and the first transmission gear 234 are coaxially arranged, so as to ensure the concentricity of the walking gear 231 and the first transmission gear 234. A central shaft 238 can be provided through the walking gear 231 and the first transmission gear 234, and the central shaft 238 is fixedly connected with the walking gear 231, and the first transmission gear 234 is rotatably sleeved outside the central shaft 238, so as to realize the linkage of the first transmission gear 234 with the walking gear 231 through the axial section 2371, or to enable the first transmission gear 234 to rotate relative to the walking gear 231. Of course, the central shafts of the first transmission gear 234 and the walking gear 231 can also be provided with a fixed shaft respectively, so that the first transmission gear can rotate relative to the fixed shaft provided therewith, so as to realize the friction clutching with the walking gear 231.

[0055] One of the walking gear 231 and the first transmission gear 234 is provided with a containing groove 233, and the other is provided with an embedding protrusion 236 embedded in the containing groove 233, so the size of the containing groove 233 and the embedding protrusion 236 should be designed according to the size of the walking gear 231 and the first transmission gear 234. In order to increase the friction contact area, the cross-sectional size of the embedding protrusion 236 should be increased as much as possible, and preferably, the containing groove 233 is arranged on the walking gear 231, and the embedding protrusion 236 is arranged on the first transmission gear 234. Since the motor 210 needs to be decelerated, the size of the walking gear 231 is usually larger than that of the first transmission gear 234, so arranging the containing groove 233 on the walking gear 231 is more conducive to increasing the cross-sectional size of the containing groove 233 and the embedding protrusion 236, thereby increasing the friction contact area among the containing groove 233, the embedding protrusion 236 and the axial section 2371.

[0056] It should be noted that the first transmission gear 234 in the clutch wheel set 230 of the transverse driving mechanism 200 and the walking gear 231 are frictionally connected through the axial section 2371 of the friction connecting piece 237, which means that the first transmission gear 234, the walking gear 231 and the friction connecting piece 237 constitute a clutch-like structure as a whole. In this way, the first transmission gear 234 and the walking gear 231 can directly realize the function of the friction clutch through friction, without the need to additionally set up a gear train to realize the friction clutch linkage of the first transmission gear 234 and the walking gear 231, thereby simplifying the number of transmission gears of the transverse driving mechanism 200, making the structure of the entire transverse driving mechanism 200 more compact and occupying a smaller volume. In practice, the walking gear 231 is engaged with the rack rail 110 on the object grabbing toy machine. The friction connecting piece 237 can be made of elastic materials such as rubber and silica gel, or composite fiber materials, paper-based materials, etc., as long as it can realize the friction clutch of the first transmission gear and the walking gear 231, and the material of the friction connecting piece 237 is not specifically limited here.

[0057] Therefore, in normal operation (when the walking gear 231 is not subjected to external resistance), the first transmission gear 234 and the walking gear 231 are fixed by the embedded protrusion 236, the accommodating groove 233 and the axial segment 2371 to realize synchronous transmission of torque. At this time, the motor 210 drives the transmission wheel set 220 to rotate the first transmission gear 234, and the walking gear 231 is synchronously rotated to realize the reciprocating movement of the walking gear 231 on the rack rail 110, and finally drive the clamping mechanism 300 to reciprocate in the extension direction of the rack rail 110. When the walking gear 231 is subjected to external resistance, for example, the walking gear 231 moves to the end of the rack rail 110, or is stuck and stops rotating, and the motor 210 continues to operate due to the malfunction of the micro switch, so that the transmission force between the walking gear 231 and the first transmission gear 234 is overloaded, which is greater than the friction force between the walking gear 231, the first transmission gear 234 and the friction connecting piece 237. At this time, the first transmission gear 234 will slip relative to the axial segment 2371, and the first transmission gear 234 will rotate relative to the walking gear 231, so that the transmission of force between the first transmission gear 234 and the walking gear 231 is interrupted. At this time, the motor 210 only drives the transmission wheel set 220 to drive the first transmission gear 234 to idle, so that the motor 210 can avoid continuous operation to cause transmission wear or abnormal sound between the walking gear 231 and the rack rail 110, the first transmission gear 234 and the walking gear 231, and the first transmission gear 234 and the transmission wheel set 220. After the external resistance disappears, the motor 210 operates, and the direction of the first transmission gear 234 and the walking gear 231 is combined by the axial segment 2371 of the friction connecting piece 237 to realize the linkage between the motor 210, the transmission wheel set 220, the first transmission gear 234, the walking gear 231 and the rack rail 110.

[0058] The displacement transmission device 10 of the object grabbing machine, by making the transverse driving mechanism 200 include the clutch wheel set 230, in normal operation (the walking gear 231 is not subjected to external resistance), the first transmission gear 234 of the clutch wheel set 230 and the walking gear 231 are frictionally engaged and fixed through the axial section 2371 of the friction connecting piece 237, synchronous transmission of torque can be realized, then the motor 210 drives the transmission wheel set 220 to drive the first transmission gear 234 to rotate, the linkage walking gear 231 rotates synchronously, so that the walking gear 231 realizes reciprocating movement on the rack rail 110, to drive the clamping mechanism 300 to move transversely and reciprocally. When the walking gear 231 is subjected to external resistance, for example, the walking gear 231 moves to the end of the rack rail 110, or is stuck and stops rotating, and the motor 210 continues to operate due to the micro switch failure, then the first transmission gear 234 can rotate relative to the walking gear 231, so that the transmission of force between the first transmission gear 234 and the walking gear 231 is interrupted, at this time the motor 210 only drives the transmission wheel set 220 to drive the first transmission gear 234 to idle, in this way, it can avoid the continuous operation of the motor 210 to cause transmission wear or abnormal sound between the walking gear 231 and the rack rail 110, the first transmission gear 234 and the walking gear 231, and the first transmission gear 234 and the transmission wheel set 220.

[0059] In addition, by making the friction connecting piece 237 include the axial section 2371 extending along the axial direction of the first transmission gear 234, the end faces of the walking gear 231 and the first transmission gear 234 are provided with the accommodation groove 233 and the embedding protrusion 236 embedded with each other, and the axial section 2371 is clamped between the circumferential side wall of the accommodation groove 233 and the outer circumferential wall of the embedding protrusion 236. The frictional contact area of the walking gear 231 and the first transmission gear 234 in the circumferential direction is effectively increased, so that the walking gear 231 and the first transmission gear 234 will not be loosened or excessively displaced in the axial direction, compared with the clutching mode of clamping friction plates between the end faces of the walking gear 231 and the first transmission gear 234, so that the axial section 2371 is fully utilized to realize the automatic clutching of the first transmission gear 234 and the walking gear 231, without the need for additional spring to press the first transmission gear 234 and the walking gear 231, therefore, only the walking gear 231, the first transmission gear 234 and the axial section 2371 can realize the automatic clutching of the transverse driving mechanism 200, greatly reducing the number of parts, making the structure of the transverse driving mechanism 200 more simple and compact, occupying small space, and being more conducive to realizing the miniaturization of the equipment.

[0060] In an embodiment, as Figure 2 and Figure 4As shown, the clutch wheel set 230 further comprises a central shaft 238, the central shaft 238 is provided through and fixedly connected with the walking gear 231, and the first transmission gear 234 is rotatably sleeved on the periphery of the central shaft 238, so that the first transmission gear 234 can rotate around the central shaft 238 relative to the walking gear 231 when the walking gear 231 stops rotating.

[0061] In the embodiment, by providing the central shaft 238 through the walking gear 231 and the first transmission gear 234, the coaxial degree of the first transmission gear 234 relative to the walking gear 231 can be ensured when the first transmission gear 234 rotates, and the gear jamming caused by the misalignment of the walking gear 231 and the first transmission gear 234 relying on the cooperation of the embedding protrusion 236 and the accommodating groove 233 can be avoided. Specifically, the two ends of the central shaft 238 respectively extend out of the first transmission gear 234 and the walking gear 231 and are rotatably connected with the mounting shell 240. In this way, when the walking gear 231 is not subjected to external resistance, the walking gear 231, the first transmission gear 234 and the axial section 2371 are tightly combined by frictional force, and when the transmission wheel set 220 drives the first transmission gear 234 to rotate, the walking gear 231 can be driven to rotate synchronously. When the walking gear 231 is subjected to external resistance, the motor 210 drives the transmission wheel set 220 to drive the first transmission gear 234 to idle relative to the walking gear 231 around the central shaft 238, so as to avoid damaging the walking gear 231 and causing abnormal noise.

[0062] In an embodiment, please refer to Figures 1 to 4 The frictional connecting piece 237 further comprises a radial section 2372 connected with the axial section 2371 and extending in the radial direction of the axial section 2371, the radial section 2372 is clamped between the first end face 232 and the second end face 235, and covers the slot opening of the accommodating groove 233.

[0063] In the embodiment, by providing that the frictional connecting piece 237 further comprises the radial section 2372, and covering the slot opening of the accommodating groove 233 by the radial section 2372, the lubricating oil on the first transmission gear 234 and the walking gear 231 can be prevented from entering the accommodating groove 233, and the frictional combination between the axial section 2371 and the first transmission gear 234 and the walking gear 231 can be affected. In addition, the radial section 2372 clamped between the end faces of the first transmission gear 234 and the walking gear 231 can also increase the frictional area between the first transmission gear 234 and the walking gear 231, so as to further improve the frictional combination tightness of the first transmission gear 234 and the walking gear 231.

[0064] In an embodiment, the frictional connecting piece 237 is made of an elastic material. Specifically, the frictional connecting piece 237 can be made of an elastic material such as rubber, silica gel, etc. By making the frictional connecting piece 237 of an elastic material, the precision requirement for the axial section 2371 of the frictional connecting piece 237 is lower than that of a rigid material. Since the lateral walking speed of the object grabbing machine is relatively slow, the frictional connecting piece 237 made of an elastic material can provide sufficient frictional binding force for the first transmission gear 234 and the walking gear 231, so that the first transmission gear 234 can drive the walking gear 231 to rotate through the axial section 2371. When the walking gear 231 is stopped by external resistance, the frictional connecting piece 237 made of an elastic material is also more convenient to realize the idling of the first transmission gear 234 relative to the walking gear 231.

[0065] In an embodiment, referring again to Figures 1 to 4 , the transmission wheel set 220 includes a first worm 221 in transmission connection with the motor 210, and the first worm 221 is in meshing connection with the first transmission gear 234 to transmission connect the motor 210 and the first transmission gear 234.

[0066] In the embodiment, the motor 210 is in transmission connection with the first worm 221, so that the output shaft of the motor 210 is directly fixedly connected with the first worm 221, and the first worm 221 is directly driven to rotate by the motor 210; or the output shaft of the motor 210 is connected with the first worm 221 through a transmission gear set to realize functions such as driving steering and speed reduction, and the transmission connection mode of the motor 210 and the first worm 221 is not limited herein. By setting the first worm 221 in meshing connection with the first transmission gear 234, compared with the transmission connection with the first transmission gear 234 through a gear train, the number of parts can be reduced, the structure of the lateral driving mechanism 200 is more simple and compact, the occupied space is small, and it is more conducive to realizing the miniaturization of the equipment.

[0067] Further, as shown in Figures 1 to 3 , the transmission wheel set 220 further includes a second worm 222 and a second transmission gear 223, the second worm 222 is coaxially fixedly connected with the output shaft of the motor 210 and extends along the axial direction of the walking gear 231; the second transmission gear 223 is coaxially fixedly connected with the first worm 221, and the second worm 222 is in meshing connection with the second transmission gear 223 to drive the second worm 222 to drive the second transmission gear 223 to drive the first worm 221 to rotate.

[0068] In the embodiment, the second worm 222 is coaxially fixedly connected with the output shaft of the motor 210, the second transmission gear 223 is coaxially fixedly connected with the first worm 221, in this way, the second worm 222 and the first transmission gear 234 are arranged side by side in the longitudinal direction and are located on the same side of the second transmission gear 223 and the first worm 221, so that the second worm 222, the second transmission gear 223, the first worm 221 and the first transmission gear 234 are arranged in a rectangular shape as a whole, so that the overall structure is extremely compact, the most simplified transmission member is adopted to realize the transmission connection between the motor 210 and the first transmission gear 234, the cost is reduced, and the occupied space is minimized, which is beneficial to realize the miniaturization of the entire transverse driving mechanism 200.

[0069] In an embodiment, referring to Figure 3 and Figure 4 , the transverse driving mechanism 200 of the object grabbing machine further comprises a mounting shell 240, the mounting shell 240 has limiting walls 241 opposite in the axial direction of the walking gear 231, the clutch wheel set 230 is mounted in the mounting shell 240 and located between the two limiting walls 241, and the sum of the distances between the two end faces of the walking gear 231 and the first transmission gear 234 which are arranged opposite to each other and the limiting walls 241 adjacent thereto is less than the extension length of the axial section 2371 in the axial direction.

[0070] In the embodiment, the mounting shell 240 is used for mounting the clutch wheel set 230. Of course, the transmission gears, the motor 210 and other structures can be integrally mounted in the mounting shell 240 to facilitate the modular assembly of the transverse driving mechanism 200. The sum of the distances between the two end faces of the walking gear 231 and the first transmission gear 234 which are arranged opposite to each other and the limiting walls 241 adjacent thereto is less than the extension length of the axial section 2371 in the axial direction, in this way, the axial displacement of the walking gear 231 and the first transmission gear 234 can be limited by the two limiting walls 241 on the mounting shell 240, and the first transmission gear 234 is prevented from moving axially relative to the walking gear 231 to be disengaged from the axial section 2371 and causing the friction linkage to fail. Generally, the distances between the two end faces of the walking gear 231 and the first transmission gear 234 which are arranged opposite to each other and the limiting walls 241 adjacent thereto are set to be small, for example, less than 0.5 mm.

[0071] The utility model further provides a displacement transmission device 10 of object grabbing machine, like Figures 5 to 11As shown, the displacement transmission device 10 of the grabber includes a mounting frame 100 and a lateral driving mechanism 200 of the grabber, the specific structure of which is referred to the above-mentioned embodiments, the mounting frame 100 is provided with a laterally extending rack track 110, the walking gear 231 of the lateral driving mechanism 200 is engaged with the rack track 110, so as to drive the first transmission gear 234 to reciprocatingly move the walking gear 231 along the rack track 110 through the motor 210 of the lateral driving mechanism 200 driving the transmission wheel set 220; since the displacement transmission device 10 of the grabber adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0072] In the present embodiment, the displacement transmission device 10 of the grabber is used in a grabber toy machine, such as a grabber doll machine. The mounting frame 100 is usually mounted on the top of the box body of the grabber toy machine, and the mounting frame 100 is used to provide installation and support for the lateral driving mechanism 200, the clamping mechanism 300 and the like. The specific structure of the mounting frame 100 can be selected and designed according to actual needs, which is not limited here. The rack track 110 on the mounting frame 100 can be provided as one or multiple. Taking the position of the displacement transmission device 10 of the grabber when it is installed in the grabber toy machine for use as a reference, the rack track 110 extends laterally, which can specifically extend in the front-rear direction, or extend in the left-right direction, or extend obliquely at an angle to the front-rear and left-right directions, which can be designed according to actual needs, and the specific lateral extension direction of the rack track 110 is not limited here.

[0073] The walking gear 231 of the lateral driving mechanism 200 is engaged with the rack rail 110. In normal operation (when the walking gear 231 is not subjected to external resistance), the motor 210 of the lateral driving mechanism 200 drives the transmission wheel set 220 to rotate the first transmission gear 234, and the walking gear 231 is synchronously rotated to realize the reciprocating movement of the walking gear 231 on the rack rail 110. When the walking gear 231 is subjected to external resistance, for example, the walking gear 231 moves to the end of the rack rail 110 or is stuck and stops rotating, and the motor 210 continues to operate due to the failure of the micro switch, the transmission force between the walking gear 231 and the first transmission gear 234 is overloaded, which is greater than the friction force between the walking gear 231, the first transmission gear 234 and the friction connecting piece 237. At this time, the first transmission gear 234 will slip relative to the axial section 2371, and the first transmission gear 234 will rotate relative to the walking gear 231, so that the transmission of force between the first transmission gear 234 and the walking gear 231 is interrupted. At this time, the motor 210 only drives the transmission wheel set 220 to drive the first transmission gear 234 to idle. In this way, the continuous operation of the motor 210 can be avoided, and the transmission wear or abnormal sound between the walking gear 231 and the rack rail 110, the first transmission gear 234 and the walking gear 231, and the first transmission gear 234 and the transmission wheel set 220 can be avoided.

[0074] In an embodiment, referring to Figures 5 to 10 , the mounting frame 100 includes a fixed frame 120 and a moving frame 130, the moving frame 130 is movably installed on the fixed frame 120 along a first direction; the rack rail 110 includes a first rack 111 extending along the first direction and a second rack 112 extending along a second direction; the first rack 111 is arranged on the fixed frame 120, and the second rack 112 is arranged on the moving frame 130, and the first direction is perpendicular to the second direction;

[0075] The lateral driving mechanism 200 is provided with two groups, and is installed on the moving frame 130. The walking gear 231 of one group of the lateral driving mechanism 200 is engaged with the first rack 111, and the walking gear 231 of the other group of the lateral driving mechanism 200 is engaged with the second rack 112, so that the group of the lateral driving mechanism 200 can drive the clamping mechanism 300 to reciprocate along the second direction relative to the moving frame 130.

[0076] In the embodiment, the fixing frame 120 is used to fix the installation on the box of the grab toy machine, and the moving frame 130 is arranged in the enclosed space. The displacement transmission device 10 of the grab toy machine is installed in the orientation reference of the grab toy machine, and the first direction can be the left-right direction or the front-back direction. The second direction corresponds to the front-back direction or the left-right direction. It can be understood that the clamping mechanism 300 is installed on the moving frame 130, and the clamping mechanism 300 can move along the first direction relative to the fixing frame 120, and the clamping mechanism 300 itself can move along the second direction in the moving frame 130, thereby realizing the accurate movement of the clamping mechanism 300 in the front-back direction and the left-right direction.

[0077] The number of the first rack 111 and the second rack 112 can be one or two. When the first rack 111 and the second rack 112 are two, the two first racks 111 are arranged opposite to each other on the fixing frame 120, and the two second racks 112 are arranged opposite to each other on the moving frame 130. The transverse driving mechanism 200 engaged with the first rack 111 and the second rack 112 has the clutch wheel set 230, so that when the clamping mechanism 300 moves in the front-back direction and the left-right direction, the force transmission can be automatically interrupted, thereby avoiding the gear damage and abnormal sound during the movement of the clamping mechanism 300 in the front-back direction and the left-right direction.

[0078] In an embodiment, as shown in Figures 5 to 8 , the fixing frame 120 includes a slide rail 121 opposite to and extending in the same direction as the first rack 111. One side of the moving frame 130 is engaged with the first rack 111 through the walking gear 231, and the other side is slidably connected with the slide rail 121. In this way, one side of the moving frame 130 is engaged with the first rack 111 through the walking gear 231, and the other side is slidably connected with the fixing frame 120. Compared with the way that the two sides of the moving frame 130 are engaged with the first rack 111 through the walking gear 231, the cost can be reduced, and the equipment failure rate can be reduced. The specific structure of the slide rail 121 of the fixing frame 120 can be many, and the sliding fitting mode of the moving frame 130 and the slide rail 121 can also be many, as long as the sliding fitting of the two can be realized, and the specific structure is not limited here.

[0079] In an embodiment, please refer to Figures 5 to 8 , Figure 10 and Figure 11The displacement transmission device 10 of the grab toy machine further comprises a clamping mechanism 300, the clamping mechanism 300 comprising a movable seat 310, a grab hand 320, a longitudinal driving mechanism 330 and a transmission chain 340; the longitudinal driving mechanism 330 is drivingly connected to the grab hand 320 through the transmission chain 340; the movable seat 310 is slidably installed in the moving frame 130 along the second direction; the longitudinal driving mechanism 330 and the transverse driving mechanism 200 linked with the second rack 112 are both installed in the movable seat 310, so that the set of transverse driving mechanisms 200 can drive the movable seat 310 and the grab hand 320 to reciprocate along the second direction.

[0080] In the embodiment, the longitudinal driving mechanism 330, the transmission chain 340 and the driving connection mode of the grab hand 320 and the longitudinal driving mechanism 330 can be various, and specific reference can be made to the existing design, which is not limited here, as long as the grab hand 320 can be driven to lift and open and clamp. The movable seat 310 is slidably installed in the moving frame 130 along the second direction, that is, the movable seat 310 can drive the clamping mechanism 300 to move along the first direction relative to the fixed frame 120 with the moving frame 130. And the movable seat 310 can also drive the clamping mechanism 300 to move along the second direction in the moving frame 130, thereby realizing the accurate reciprocating movement of the clamping mechanism 300 forward and backward, left and right. The movable seat 310 and the moving frame 130 can be connected by sliding rails 121, sliding grooves and the like, or only the sliding rails 121 can be arranged in the moving frame 130, so that the bottom surface of the entire movable seat 310 can slide relative to the sliding rails 121 to realize the sliding connection of the movable seat 310 and the moving frame 130. The specific sliding mode of the movable seat 310 and the moving frame 130 is not limited here.

[0081] The utility model further proposes a kind of grab toy machine, the grab toy machine includes box, control unit and the displacement transmission device 10 of grab machine 10, the specific structure of the displacement transmission device 10 of grab machine is referred to above-mentioned embodiment, control unit and the motor 210 of transverse driving mechanism 200 are electrically connected;Since the grab toy machine of the present application adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.The shape and size of the box can be selected and designed according to actual needs, which is not limited here.The mounting bracket 100 of the displacement transmission device 10 of grab machine is fixedly connected with the box, and the two can be fixedly connected by buckles, screws, integral molding and the like, which is not limited here.The control unit is used to control the start-stop, forward-reverse rotation and the like of the motor 210 of transverse driving mechanism 200, to accurately control the transverse movement of clamping mechanism 300.The specific structure of the control unit can refer to the existing design, which is not limited here.

[0082] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art will understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A lateral drive mechanism for a grabber, characterized by, Including motor, transmission wheel group and clutch wheel group, wherein, The clutch wheel group includes walking gear, first transmission gear and friction connecting piece arranged coaxially; The walking gear has a first end face adjacent to the first transmission gear, the first transmission gear has a second end face adjacent to the walking gear, one of the first end face and the second end face is provided with a receiving groove, and the other is provided with an embedded protrusion embedded in the receiving groove; The friction connecting piece includes an axial segment extending along the axial direction of the first transmission gear, the axial segment is sleeved on the outer periphery of the embedded protrusion and clamped between the outer peripheral wall of the embedded protrusion and the circumferential wall of the receiving groove, so as to frictionally connect the walking gear and the first transmission gear in a clutching manner; The motor is drivingly connected with the first transmission gear through the transmission wheel group, and drives the first transmission gear to rotate relative to the walking gear when the walking gear stops rotating.

2. The lateral drive mechanism of the object gripping machine according to claim 1, wherein The clutch wheel group further includes a central shaft, the central shaft penetrates and fixedly connects the walking gear, and the first transmission gear is rotatably sleeved on the outer periphery of the central shaft, so that the first transmission gear can rotate around the central shaft relative to the walking gear when the walking gear stops rotating.

3. The lateral drive mechanism of the object gripping machine according to claim 1, wherein The friction connecting piece further includes a radial segment connected with the axial segment and extending radially along the axial segment, the radial segment is clamped between the first end face and the second end face, and covers the slot opening of the receiving groove.

4. The lateral drive mechanism of the object gripping machine according to claim 1, wherein The friction connecting piece is made of elastic material.

5. The lateral drive mechanism of the object gripping machine according to claim 1, wherein The transmission wheel group includes a first worm drivingly connected with the motor, the first worm is engaged with the first transmission gear, so as to drivingly connect the motor and the first transmission gear.

6. The lateral drive mechanism of the object gripping machine according to claim 5, wherein The transmission wheel group further includes a second worm and a second transmission gear, the second worm is coaxially fixedly connected with the output shaft of the motor and extends along the axial direction of the walking gear, and the second transmission gear is coaxially fixedly connected with the first worm, the second worm is engaged with the second transmission gear, so that the motor drives the second worm to drive the second transmission gear to drive the first worm to rotate.

7. The transverse drive mechanism of the object gripping machine according to any one of claims 1 to 6, characterized in that, The lateral driving mechanism of the grabber further includes a mounting shell, the mounting shell has opposite limiting walls in the axial direction of the walking gear, the clutch wheel group is mounted in the mounting shell and located between the two limiting walls, and the sum of the distances between the two end faces of the walking gear and the first transmission gear which are arranged opposite to each other and the adjacent limiting walls in the axial direction is less than the extension length of the axial segment in the axial direction.

8. A displacement drive for a grabber, characterized in that Including: A mounting frame is provided with a transversely extending rack rail; And, The lateral driving mechanism is the lateral driving mechanism of the grabber as claimed in any one of claims 1 to 7, the walking gear of the lateral driving mechanism is engaged with the rack rail, so that the motor of the lateral driving mechanism drives the transmission wheel group to drive the first transmission gear to drive the walking gear to move back and forth along the rack rail.

9. The displacement drive of claim 8 wherein, The mounting frame comprises a fixed frame and a moving frame, the moving frame is movably mounted on the fixed frame along a first direction; the rack rail comprises a first rack extending along the first direction and a second rack extending along a second direction; the first rack is arranged on the fixed frame, and the second rack is arranged on the moving frame, and the first direction is perpendicular to the second direction; The lateral driving mechanism is provided in two groups, and is mounted on the moving frame; the walking gear of one group of the lateral driving mechanism is engaged with the first rack, and the walking gear of the other group of the lateral driving mechanism is engaged with the second rack, so that the group of lateral driving mechanisms can drive the clamping mechanism to reciprocate along the second direction relative to the moving frame.

10. The displacement drive of claim 9 wherein, The fixed frame comprises a slide rail extending opposite to and in the same direction of the first rack, one side of the moving frame is engaged with the first rack through the walking gear, and the other side is slidably connected with the slide rail.

11. The displacement drive of claim 9 wherein, The displacement transmission device of the object grabbing machine further comprises a clamping mechanism, the clamping mechanism comprises a movable seat, a gripper, a longitudinal driving mechanism and a transmission chain; the longitudinal driving mechanism is drivingly connected with the gripper through the transmission chain; the movable seat is slidably mounted in the moving frame along the second direction; the longitudinal driving mechanism and the lateral driving mechanism linked with the second rack are both mounted on the movable seat, so that the group of lateral driving mechanisms can drive the movable seat and the gripper to reciprocate along the second direction.

12. A grabber toy machine, characterized by, The displacement transmission device of the object grabbing machine comprises a box body, a control unit and the displacement transmission device of the object grabbing machine according to any one of claims 8 to 11, the control unit and the displacement transmission device of the object grabbing machine are mounted on the box body, and the control unit is electrically connected with the motor of the lateral driving mechanism of the displacement transmission device of the object grabbing machine.

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