Multi-arm driving machine core and dual-driving structure with same

Abstract

The utility model discloses a multi-arm driving machine core, which comprises a base, a driving seat and a driving device, the base is provided with a plurality of claw arms which are circumferentially distributed along the axis of the base, the base is provided with a pivoting part, the claw arms are arranged on the pivoting part in a swinging manner, the claw arms extend from the pivoting part to the axis direction to form driving arms, and the driving seat is arranged on the driving arm. The driving arm is provided with a long-strip-shaped driving groove, the driving seat is arranged on the lower wall of the base and can slide in the height direction, the driving seat is provided with moving shafts which are consistent with the claw arms in distribution, and the moving shafts extend into the driving groove and can slide in the length direction of the driving groove when the driving seat moves. And the front ends of the claw arms can be driven to swing back and forth by taking the pivoting parts as fulcrums. A dual-drive structure comprises the multi-arm drive machine core and a telescopic base installed above the base in a sliding mode. The driving base penetrates through the base and then extends upwards to form a middle shaft, the middle shaft is connected with the telescopic base, and when the telescopic base moves in a reciprocating mode in the vertical direction, the claw arms swing in a reciprocating mode at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of movement, especially a kind of multi-arm drive movement and the double drive structure with it. BACKGROUND

[0002] The existing movement, for example, the structure of toy, massager etc., generally will adopt rotating motor cooperation cam, and then realizes the swing of multiple claw arms, but in actual use, but cam structure in actual use, through connecting rod structure is respectively pivotally connected with the rear end of claw arm, and then realizes the swing of multiple claw arms simultaneously.But in actual use, it is found that the structure is prone to jamming in the wave crest and wave trough of cam, which affects the fluency of swing, and affects the use stability and use fluency of movement. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of multi-arm drive movement and the double drive structure with it, to improve the existing movement structure and realize the swing of multiple claw arms simultaneously, and realize double drive movement according to the structure.

[0004] To achieve the above object, the utility model provides a kind of multi-arm drive movement, comprising,

[0005] Base (wherein base is fixed to shell structure), the base is equipped with multiple claw arms distributed along the circumference of base axis, the base is equipped with pivot part, the claw arm swing is installed in pivot part, the claw arm extends driving arm from pivot part towards the axis direction, and the driving arm is equipped with long strip driving groove;

[0006] Drive seat, the drive seat is located in the lower wall position of base and can slide along the height direction, the drive seat is equipped with dynamic shaft consistent with claw arm distribution, and the dynamic shaft extends into driving groove and can slide along its length direction;

[0007] Driving device, the driving device is located in the lower wall position of drive seat and is used to drive drive seat to reciprocate along vertical direction, when drive seat moves, the front end of claw arm can reciprocate swing with pivot part as fulcrum.

[0008] In actual design, wherein base is fixedly arranged in shell, claw arm and driving arm are pivotally installed in pivot part by pivot shaft, driving arm extends towards the axis direction of base, and driving arm is located in the middle of base, wherein driving arm can extend downward, and can also extend upward, to realize the connection with drive seat, preferred embodiment is that base is equipped with via hole, for drive seat to extend into, to facilitate the dynamic shaft of drive seat to drive driving arm to swing up and down, and then drive the front end of claw arm to swing,

[0009] Through the cooperation of the long strip-shaped driving groove and the driving shaft, the driving shaft is driven to slide along the driving groove through the reciprocating stroke of the driving seat, thereby realizing the reciprocating swing of the front end of the claw arm, and thereby realizing the conversion of the vertical stroke into the swing stroke. Through simple structure, the structure of simultaneous swing of multiple arms is realized, which is more stable and more linear in swing.

[0010] A double drive structure comprises the multi-arm drive movement core and a telescopic seat slidingly installed above the base.

[0011] The driving seat extends upwardly after penetrating the base to have a middle shaft, and the middle shaft is connected with the telescopic seat.

[0012] When the telescopic seat reciprocates along the vertical direction, the multiple claw arms reciprocate and swing.

[0013] Through the through hole of the base, the reciprocating stroke of the driving seat can realize the reciprocating swing of the multiple claw arms and the reciprocating swing of the telescopic seat, thereby realizing the double drive structure. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an exploded view of the multi-arm drive movement core.

[0015] Figure 2 It is a sectional view of the multi-arm drive movement core.

[0016] Figure 3 It is a three-dimensional schematic view of the multi-arm drive movement core. Figure 1 ;

[0017] Figure 4 It is a three-dimensional schematic view of the multi-arm drive movement core. Figure 2 ;

[0018] Figure 5 It is a plan view of the double drive structure.

[0019] Figure 6 It is a sectional view of the double drive structure.

[0020] Figure 7 It is a three-dimensional schematic view of the double drive structure.

[0021] Figure 8 It is a schematic view of the cooperation of the telescopic seat and the sliding seat.

[0022] In the drawings,

[0023] 1 is a base, 10 is a pivot part, 11 is a through hole,

[0024] 2 is a claw arm, 21 is a driving arm, 22 is a driving groove,

[0025] 3 is a driving seat, 31 is a driving shaft,

[0026] 4 is a rotating shaft,

[0027] 5 is a rotating motor, 51 is a rotating seat, 51a is an arc-shaped slot, 52 is a guide seat, 52a is a guide slot, 53 is a sliding seat, 53a is a ball,

[0028] 6 is an extension seat, 60 is a middle shaft,

[0029] 7 is an upper cover, 70 is a avoiding hole,

[0030] 81 is a guide sleeve, 82 is a vertical hole,

[0031] 9 is a positioning part. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0034] In addition, if the embodiments of the present application involve descriptions of "first" or "second", etc., the descriptions of "first" or "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but must be based on the realization of a person skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0035] As shown in FIG. 1, a multi-arm driving movement core comprises, Figures 1 to 8

[0036] ​The base 1 (wherein the base 1 is fixed to a shell or the like structure) is provided with a plurality of claw arms 2 distributed circumferentially along the axis of the base 1, the base 1 is provided with a pivot portion 10, the claw arm 2 is swingably mounted to the pivot portion 10, the claw arm 2 extends from the pivot portion 10 to the axis direction and is provided with a driving arm 21, the driving arm 21 is provided with a long strip-shaped driving groove 22;

[0037] The driving seat 3 is arranged at the lower wall position of the base 1 and can slide in the height direction, the driving seat is directly connected with the driving arm or connected through a transmission member;

[0038] For example, the driving seat 3 is provided with a moving shaft 31 consistent with the distribution of the claw arm 2, the moving shaft 31 extends into the driving groove 22 and can slide along the length direction thereof;

[0039] Of course, the driving seat can also be indirectly connected with the driving groove through a connecting rod, and then the swing thereof is realized;

[0040] The driving device is arranged at the lower wall position of the driving seat 3 and is used to drive the driving seat 3 to reciprocate in the vertical direction, when the driving seat 3 moves, the front end of the claw arm 2 can reciprocate and swing about the pivot portion 10 as the fulcrum.

[0041] In the actual design, the base 1 is fixedly arranged in the shell, the claw arm 2 and the driving arm 21 are pivotally mounted to the pivot portion 10 through the rotating shaft 4, the driving arm 21 extends to the axis direction of the base 1, and the driving arm 21 is located at the middle part of the base 1, wherein the driving arm 21 can extend downward or upward, and then the connection with the driving seat 3 is realized, and the preferred embodiment is that the base 1 is provided with a through hole 11 for the driving seat 3 to extend into, and then the moving shaft 31 of the driving seat 3 drives the driving arm 21 to swing up and down, and then the front end of the claw arm 2 swings,

[0042] Through the cooperation of the long strip-shaped driving groove 22 and the moving shaft 31, the moving shaft 31 slides along the driving groove 22 through the reciprocating stroke of the driving seat 3, and then the reciprocating swing of the front end of the claw arm 2 is realized, and then the vertical stroke is converted into the swing stroke, and the structure of the simultaneous swing of multiple arms is realized through the simple structure, the stability is better, and the swing is more linear.

[0043] The claw arm 2 can be provided with two, four or more.

[0044] Specifically, the middle part of the base 1 is provided with a through hole 11 for the driving seat 3 to extend into, which can make the overall height of the movement core smaller, and at the same time facilitate the cooperation of the moving shaft 31 of the driving seat 3 and the driving groove 22, and then the vertical stroke is converted into the reciprocating swing stroke, the stability and swing linearity of the swing are ensured, and the problem of jamming is reduced.

[0045] In the embodiment of the utility model, the claw arm 2 and the driving arm 21 are bently arranged with the pivot part 10 as the base point, the length of the driving arm 21 is less than the length of the claw arm 2, the claw arm 2 can be swung by the shorter driving arm 21, and the front end of the claw arm 2 has a larger swing amplitude, that is, a small stroke drives a larger stroke.

[0046] Specifically, the claw arm 2 and the driving arm 21 are provided with shaft holes, the pivot part 10 is provided with a rotating shaft 4, the rotating shaft 4 extends into the shaft hole, and the swing of the claw arm 2 is realized.

[0047] In the embodiment of the utility model, the driving device is a driving assembly or a telescopic motor.

[0048] Specifically, the driving assembly comprises a rotary motor 5, a rotating seat 51 connected with the rotary motor 5, a guide seat 52 sleeved on the outer wall of the rotating seat, and a sliding seat 53 sleeved on the outer wall of the guide seat.

[0049] The outer peripheral wall of the rotating seat is provided with a closed-loop arc-shaped groove 51a which is not in the same plane, and the guide seat is provided with a vertical guide groove 52a.

[0050] The sliding seat is provided with a ball 53a, and the ball is clamped in the arc-shaped groove after passing through the guide groove.

[0051] When the rotary motor 5 rotates, the rotating seat is driven to slide the ball along the arc-shaped groove and the guide groove, and the sliding seat is vertically moved.

[0052] The upper end of the sliding seat is connected with the bottom of the driving seat 3.

[0053] The cooperation of the ball, the arc-shaped groove and the guide groove can make the reciprocating vertical movement of the driving seat 3 more linear, and the reciprocating movement of the driving seat 3 more linear, and the swing of the claw arm 2 more linear, thereby reducing the jamming problem and improving the stability of the swing.

[0054] A double driving structure comprises the multi-arm driving movement and a telescopic seat 6 which is slidably installed above the base 1.

[0055] The driving seat 3 has a middle shaft 60 extending upward after passing through the base 1, and the middle shaft is connected with the telescopic seat 6.

[0056] When the telescopic seat 6 reciprocates in the vertical direction, the plurality of claw arms 2 reciprocate.

[0057] Through the via hole 11 of the base 1, the reciprocating stroke of the driving seat 3 can realize the reciprocating swing of the plurality of claw arms 2 and the reciprocating swing of the telescopic seat 6, and the double driving structure is realized.

[0058] Specifically, the base 1 is provided with an upper cover, the upper cover 7 is provided with an avoiding slot 70 for the claw arm 2 to extend out,

[0059] The middle part of the upper cover 7 is provided with an upward extending guide sleeve 81, the middle part of the guide sleeve is provided with a vertical hole 82, the middle shaft is connected with the telescopic seat 6 after extending into the vertical hole, so that the telescopic seat 6 and the middle shaft can reciprocatingly slide along the vertical hole, and the guide effect is achieved.

[0060] In the embodiment of the utility model, the telescopic seat 6 is provided with a positioning part 9 extending into the vertical hole, the outer wall of the positioning part is attached with the vertical hole, the positioning part is connected with the middle shaft by screw rod connection, screw thread connection or glue bonding, and different installation modes are selected according to different use scenes.

[0061] Of course, the middle shaft can also be directly connected with the telescopic seat.

[0062] Specifically, the telescopic seat 6 and the middle shaft are both hollow structures, so that the cable or other structures can be conveniently arranged, and the production cost is lower.

[0063] The guide sleeve is a silica gel sleeve, wherein the guide sleeve can be a silica gel structure at the upper end or a whole silica gel structure, so as to achieve the damping effect.

[0064] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A multi-arm drive mechanism, characterized in that, include, The base has a plurality of claw arms distributed circumferentially along the axis of the base. The base has a pivot part. The claw arms are oscillatingly mounted on the pivot part. The claw arms extend from the pivot part toward the axis with a drive arm. The drive arm has a long strip-shaped drive groove. A drive seat is located on the lower wall of the base and can slide along the height direction. The drive seat is directly connected to the drive arm or connected through a transmission component. A driving device is located on the lower wall of the driving seat and is used to drive the driving seat to move back and forth in the vertical direction. When the driving seat moves, it can drive the front end of the claw arm to swing back and forth with the pivot point as the fulcrum.

2. The multi-arm drive mechanism as described in claim 1, characterized in that: The base has a through hole in the middle, which is used for the drive seat to extend into.

3. The multi-arm drive mechanism as described in claim 1, characterized in that: The drive base is provided with a movable shaft that is distributed in the same way as the claw arm. The movable shaft extends into the drive groove and can slide along its length. The claw arm and the drive arm are bent at the pivot point, and the length of the drive arm is less than the length of the claw arm.

4. The multi-arm drive mechanism as described in claim 1, characterized in that: A shaft hole is provided between the claw arm and the drive arm, and a rotating shaft is provided in the pivot part, the rotating shaft extending into the shaft hole.

5. The multi-arm drive mechanism as described in claim 1, characterized in that: The driving device is a drive assembly or a telescopic motor.

6. The multi-arm drive mechanism as described in claim 5, characterized in that: The drive assembly includes a rotary motor, a rotating seat connected to the rotary motor, a guide seat sleeved on the outer wall of the rotating seat, and a sliding seat sleeved on the outer wall of the guide seat. The outer peripheral wall of the rotating seat is provided with a closed-loop arc groove that is not on the same plane, and the guide seat is provided with a vertically arranged guide groove. The sliding seat is equipped with ball bearings, and the ball bearings are partially stuck in the arc-shaped groove after passing through the guide groove. When the rotary motor rotates, it drives the rotating seat to move and force the balls to slide along the arc groove and guide groove, thereby driving the sliding seat to move vertically. The upper end of the sliding seat is connected to the bottom of the drive seat.

7. A dual-drive structure, characterized in that, Includes the multi-arm drive mechanism of any one of claims 1-6 and the telescopic seat that is slidably mounted on the base; The drive seat extends upward from the base to form a central shaft, which is connected to the telescopic seat. As the telescopic seat moves back and forth in the vertical direction, multiple claw arms swing back and forth.

8. The dual-drive structure as described in claim 7, characterized in that: The base is provided with a top cover, and the top cover is provided with a clearance groove for the claw arm to extend. The upper cover has an upwardly extending guide sleeve in the middle, and the guide sleeve has a vertical hole in the middle. The central shaft extends into the vertical hole and is connected to the telescopic seat.

9. The dual-drive structure as described in claim 7, characterized in that: The telescopic seat is provided with a positioning part that extends into a vertical hole. The outer wall of the positioning part fits into the vertical hole. The positioning part is connected to the central shaft screw, by thread or adhesive.

10. The dual-drive structure as described in claim 8, characterized in that: Both the telescopic seat and the central shaft are hollow structures, and the guide sleeve is a silicone sleeve.

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