CN2271197Y - One-way two-way selective transmission - Google Patents

Abstract

The utility model provides a one-way two-way selective transmission device for ornaments and doll, when the seat is fixed in two-way rotatory position in turn, actuating lever one end single turn to the circumferential motion on the spur gear and cause drive connecting rod reciprocating motion, truns into output shaft two-way rotation in turn again, as long as the seat moves to one-way rotatory position on the sliding space, master gear and one-way gear meshing can cause unidirectional rotation, the utility model discloses but the one-way or two-way rotatory mode of free choice can be used to drive the various rotations of ornaments, doll and self component (like doll etc.), easily attract the customer and purchase commodity.

Description

One-way two-way selective transmission

A one-way and two-way selective transmission device, which belongs to machinery, is mainly used for decorations or dolls.

Existing decorations and dolls (such as Christmas trees, dolls, carved ornaments) or their own components (doll arms), when placed in the window or displayed, motor transmissions are often used to make the ornaments stand or the own components of toy dolls (such as doll arms) ) for one-way rotation, but this driving ornament or doll for one-way rotation is not only rigid in the way of rotation, but also not easy to attract customers.

The purpose of this utility model is to provide a one-way two-way selective transmission device, which can be used in one-way rotation mode or alternately in two-way rotation mode, so that the output shaft drives the decorations and other components to change the rotation mode at will, and in addition, it can use one-way and two-way rotation A driving link that pivots freely on the pin is installed on the circumference of the spur gear of the drive device, and the one-way circular motion of one end of the rod on the spur gear changes from the reciprocating motion of the drive rod to alternate two-way rotation. The structure Simple, two-way rotation mode and one-way rotation mode can be realized only by clamping or loosening the clamping device, and adjusting the transmission gear set to make the motor reach the actual required speed.

The purpose of this utility model is achieved in this way: the driving gear is driven by the motor, the output shaft has a coaxial output shaft gear, and the gear set for speed change is provided with a one-way gear on the spur gear and the pinion seat. The seat can slide horizontally on the sliding space, and has a link arm and an opening. When the seat slides horizontally, it will not contact the output shaft. The driving device for alternate bidirectional rotation includes a third gear set with a tooth on one side The drive link of the bar, the roller that forces the drive link to mesh with the gear shaft gear with spring force, the roller seat with the compression spring and the output shaft of the coaxial output shaft gear, when the seat moves and is fixed at "alternately" In the "two-way rotation position", a drive link that can pivot freely on the pin is installed around the third spur gear, and the compression spring forces the roller to press the output shaft to make the output shaft gear mesh with the rack. The single-turn circular motion on the third spur gear is reciprocated by the drive connecting rod to become an alternate bidirectional rotation of the output shaft; when the seat moves and is fixed at the "one-way rotation position", the third spur gear meshes with one side of the one-way gear, The other side of the one-way gear meshes with the output shaft gear, so the one-way gear between the third gear and the output shaft gear achieves the purpose of one-way rotation of the output shaft; for alternate two-way rotation, a pin is installed on the circumference of the spur gear in the drive device, the The direction of the pin is parallel to the axis of the spur gear, and there is a rack drive link on the side, one end of which can pivot on the pin, the roller and the compression spring are installed to press the roller to the output shaft, so that the output shaft gear and the drive link The gear rack is meshed, and the one-way circular motion of one end of the drive link on the spur gear is changed from the reciprocating motion of the drive link to the alternate bidirectional rotation of the output shaft.

The utility model has the advantages that the one-way rotation mode or the alternate two-way rotation mode can be selected as required, so that it is easy to attract customers by driving ornaments, toys, and dolls to change modes at will. It can be converted from one-way rotation to two-way rotation, and the clamping device will be released to return to one-way rotation, and the gear set can be used to change the speed to the proper speed of the spur gear.

The graphic description is as follows:

Fig. 1 is the perspective view of the utility model

Fig. 2 is an exploded view of the utility model

Fig. 3 and Fig. 4 are the top views of the one-way steering circular motion of one end of the driving connecting rod on the spur gear of the utility model, which becomes the alternate bidirectional rotation of the output shaft through the reciprocating motion of the driving connecting rod, indicating the driving device for the alternate bidirectional rotation of the output shaft Actions

The present embodiment is described in detail below with reference to the accompanying drawings:

The embodiment of the utility model includes a drive gear 1, a gear set device for speed change, a seat 2, an output shaft 4, a one-way gear 3 and a driving device for alternate bidirectional rotation of the output shaft; the drive gear 1 is driven by a motor Drive, the driving gear 1 meshes with a gear set for speed change, the rotational power of the drive gear 1 is transmitted to the gear set device for speed change, and then converted into an appropriate speed and then transmitted to the third positive drive device for the alternate bidirectional rotation of the output shaft. Gear 5, when seat platform 2 moves to " alternately two-way rotation position ", utilize output shaft alternately two-way rotation to use driving device, install a drive link that can pivot freely on pin 6 on the circumference of third spur gear 5 7. Use the one-turn circular rotation of one end of the drive link 7 on the third spur gear 5 to cause the reciprocating motion of the drive link 7, which is then transformed into the alternate bidirectional rotation of the output shaft 4. If the output shaft becomes a single To rotate, as long as the seat 2 is moved to the "one-way rotation position", the third spur gear 5 is meshed with the one-way gear 3, and the one-way gear 3 is also meshed with the output shaft gear 21, and through the transmission of the one-way gear 3 Turn into one-way rotation; the gear device for speed change of the present utility model includes the first spur gear 9 that can be driven by the meshing driving gear 1; the first pinion 10 is located on the first spur gear 9 and is fixed to the concentric On the first spur gear 9; the second spur gear 11 engaged by the first pinion 10; the second pinion 18 is located on the second spur gear 11 and is fixed to the concentric second spur gear 11, the second pinion The gear 18 meshes with the third spur gear 5 of the drive device for alternate bidirectional selection of the output shaft; the diameter of the pinion and the spur gear can be adjusted according to the speed of the gear. The output shaft alternately rotates bidirectionally with the drive device comprising the third spur gear 5, a drive link 7 with a rack 19 on one side, and a roller 12 that uses spring force to force the drive link 7 to mesh with the output shaft gear 21, There is a roller seat with a compression spring 15 and an output shaft 4 with a coaxial output shaft gear 21. When the seat platform is moved and fixed at the "alternate bidirectional rotation position", the output shaft rotates alternately with the third spur gear of the drive device 5 on the circumference of the pin 6, a drive link 7 can be freely pivoted on the pin 6. Because the compression spring 15 forces the roller 12 to press the output shaft 4, the output shaft gear 21 is engaged with the rack 19 of the drive link. The one-turn circular motion of one end of the rod 7 on the third spur gear 5 is transformed into the alternate bidirectional rotation of the output shaft 4 through the reciprocating motion of the drive connecting rod 7 (Fig. 3, Fig. 4), and the third spur gear 5 rotates counterclockwise On the circumference of the third spur gear 5, one end of the arc-shaped drive link 7 is fixed on the pin 6 with a pin 6, and one end of the drive link 7 can pivot with the pin 6 as the axis, and the left side of the drive link 7 There is a rack on one side, and the upper end is supported by a connecting rod support wall 17 to keep the level, the driving connecting rod 7 can slide freely on the connecting rod support wall 17, the roller 12 is fixed on the roller seat 14, and the roller seat 14 can be placed on the Slide left and right in the roller chute 20, use a compression spring 15 to force the roller seat 14 and the roller 12 to apply elastic force to the left and press the driving connecting rod 7 to make the rack 19 mesh with the output shaft gear 21. In Fig. 3, the third positive The clockwise rotation of the gear 5 drives the driving connecting rod 7 to move upwards to the right. Because the rack 19 meshes with the output shaft gear 21, the output shaft 4 and the output shaft gear 21 rotate counterclockwise, and the arc-shaped driving connecting rod 7 moves upwards. The speed component becomes slower, and the counterclockwise rotation speed of the output shaft 4 becomes slower. When the third gear 5 rotates clockwise, the pin 6 moves on the circumference of the third spur gear 5 and reaches near the uppermost point, and the component of the upward movement of the driving connecting rod 7 becomes At this time, the output shaft 4 stops moving. When the third spur gear 5 continues to rotate clockwise, the drive connecting rod 7 moves upward, and the clockwise rotation speed of the output shaft 4 becomes faster. When the pin 6 reaches the situation shown in Figure 4 , the rotation speed of the output shaft 4 slows down, and when the pin 6 moves to the uppermost point on the circumference of the third spur gear 5, the speed component of the drive link 7 moving downward becomes zero, the output shaft 4 stops rotating, and the third spur gear 5 Continue to rotate clockwise, the drive link 7 moves to the upper left and the output shaft 4 turns counterclockwise again, and so on, the rotation mode of the output shaft 4 is "alternate bidirectional rotation mode". The seat platform 2 of the present utility model can slide left and right on the sliding space 22 horizontally. In the case of no clamping device, the seat platform 2 is moved to the right side by the spring force to the "one-way rotation position". When the seat platform 2 is in the " When in the one-way rotation position, the output shaft is in "one-way rotation mode", and the roller 12 does not press the drive link 7, which will not cause the rack 19 to mesh with the output shaft gear 21; the third spur gear 5 and the one-way gear 3 are aligned Side meshing, the other side of the one-way gear 3 meshes with the output shaft gear 21, so the purpose of one-way rotation of the output shaft is realized through the one-way gear 3 between the third spur gear 5 and the output shaft gear 21; The handle 23 can make the seat platform 2 move to the left to the "alternately two-way rotating position", and the seat platform 2 is fixed in the "alternately two-way rotating position" with bayonet pins, then the output shaft 4 is in the "one-way rotating position" and There will be no contact with the output shaft gear 21 when switching between the "alternate bidirectional rotation positions".

Claims (2)

1. A one-way two-way selective transmission device, characterized in that: the driving gear is driven by a motor, the output shaft is provided with a coaxial output gear, and the gear set for speed change is composed of more than one spur gear and pinion; There is a one-way gear on the table, which can slide horizontally in the sliding space without contacting the output shaft, and has a link arm and an opening; the alternate two-way rotation drive device includes a third spur gear, and a driving link with a rack on one side , a roller that uses spring force to force the drive connecting rod to mesh with the output shaft gear, a roller seat that packs a compression spring and an output shaft that is coaxial with the output shaft gear. 2. The one-way two-way selective transmission device according to claim 1, characterized in that: in the alternate two-way rotation drive device, a pin is installed on the circumference of the spur gear, the pin direction is parallel to the spur gear axis, and a rack is provided on the side A drive link that pivots on a pin at one end.

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