WO2010121394A1

WO2010121394A1 - Swing type transmission bicycle and swing type transmission mechanism

Info

Publication number: WO2010121394A1
Application number: PCT/CN2009/000425
Authority: WO
Inventors: 林进锦
Original assignee: 农豪实业股份有限公司
Priority date: 2009-04-21
Filing date: 2009-04-21
Publication date: 2010-10-28

Abstract

A swing type transmission bicycle (100) is composed of a bicycle body (10), a chainwheel device (20), a rotation shaft, a pedaling device (30) and a group of swinging device (40). The swinging device (40) has a swing rod (60) and an oneway bearing (50) which has a centre bore (51). The rotation shaft is axially mounted in the centre bore (51) of the oneway bearing (50), and the swing rod (60) contains plural parts of socketed telescopic rod. Thereinto the end of last part of telescopic rod (62) has a radial axle hole so as that the telescopic rod can be movably arranged between the pedal (32) and the crank (31), and the front end of first part of telescopic rod (61) is mounted outside of the oneway bearing (50). When the pedaling device (30) drives the swing rod (60) to move up and down, the swing rod (60) can expand and contract passively to form axial reciprocating motion and can drive the oneway bearing (50) to cause the oneway rotation of the rotation shaft so as to make the wheels rotating. The telescopic swing type transmission mechanism for bicycle can improve riding comfort and safety.

Description

Oscillating transmission bicycle and its oscillating transmission device

The present invention relates to an oscillating transmission bicycle, and more particularly to an oscillating transmission power unit. Background technique

In view of the conventional driving mode of the bicycle, the user can step on the pedal to drive the crank to perform circular motion and then drive the rear wheel to rotate. However, the torque generated by this method is limited and labor-intensive. Therefore, the applicant and its affiliated companies have developed a relatively labor-saving bicycle, such as a bicycle pedaling device (Taiwan Patent Application No. 095216760, US Patent Application No. 1 1/580,298, European Patent Application No. 06025071.9) And the swinging transmission mechanism of the bicycle (Taiwan Patent Application No. 097113013, Chinese Invention Patent Application No.

200810089079.4).

The stepping device of the above bicycle, as shown in FIG. 1 , mainly adds a stepping device between the crank 1 of the bicycle and the toothed disc 2 , and the stepping device mainly has a socket wrench 3 , the sleeve One end of the wrench 3 is accommodated by a flywheel and is engaged with the rotating shaft of the toothed disc 2. The other end of the socket wrench 3 is provided with an auxiliary lever of a bearing for the pedal of the bicycle to be worn by the bearing. It is locked to the crank 1. In this way, when the user steps on the pedal to drive the crank 1 to perform a circular motion, the sleeve wrench 3 is provided with one end of the bearing to be driven to swing up and down, so that the socket wrench is 3 The flywheel at the other end drives the toothed disc 2 to rotate, and then drives the rear wheel of the bicycle to rotate via the chain. Thus, the torque transmitted to the rear wheel can be increased by the oscillating transmission of the socket wrench 3 to achieve a labor-saving effect.

However, since the above-mentioned bicycle socket wrench 3 is fixed in type, it must have a sufficient length for the crank and the pedal to rotate to the front end (closest to the front wheel position) position, but can still be driven, but when the crank and When the pedal is rotated to the position of the rear end (closest to the rear wheel position), the front end of the socket wrench 3 must protrude from the position of the pedal and the crank 1, which not only has unsightly doubts, but also easily causes the user's pants, skirt or The touch of the foot easily interferes with the protruding socket wrench 3, resulting in considerable discomfort on the ride and the possibility of danger. Summary of the invention In view of the above, the present invention mainly provides an oscillating transmission device with a telescopically varying oscillating lever, which has no abrupt portion in its configuration, and can avoid interference with the user to enhance the comfort of use. And security.

The present invention provides an oscillating transmission bicycle using the foregoing transmission device, which has the advantages of being practical, safe, and beautiful.

To achieve the above object, the technical solution adopted by the present invention includes:

An oscillating transmission bicycle characterized by comprising:

a bicycle body having at least one wheel;

a toothed disc device coupled to the wheel of the bicycle for transmitting power to the wheel, the sprocket device having a toothed disc;

a rotating shaft fixed to the center of the toothed disc, wherein the rotating shaft is rotatably shafted on the bicycle body; a pedaling device having a pair of cranks and corresponding pedals, the cranks being rotatably shafted on the bicycle body ;

a swinging device having a one-way bearing and a swinging rod, the one-way bearing having a central hole, the rotating shaft being axially fixed in a central hole of the one-way bearing, and swinging The rod comprises a plurality of telescopic rods, wherein the last telescopic rod end is rotatably arranged between the pedal and the crank; and the front end of the first telescopic rod is fixed on the outer side of the one-way bearing, when the foot When the stepping device drives the swinging rod to swing up and down, the swinging rod can passively perform the axial reciprocating motion of the extension and retraction, and drives the one-way bearing to make the rotating shaft rotate in one direction.

To achieve the above objective, the technical solution adopted by the present invention further includes:

An oscillating transmission device characterized by comprising:

a shaft

a foot pedal device having a pair of cranks and corresponding pedals;

a swinging device having a one-way bearing and a swinging rod, the one-way bearing having a central hole for receiving and fixing the rotating shaft, and the swinging rod comprising a plurality of telescopic rods that are sleeved, The end of the last section of the telescopic rod is rotatably arranged between the pedal and the crank, and the front end of the first section of the telescopic rod is fixed on the outer side of the one-way bearing. When the pedaling device drives the swinging rod to swing up and down, The swinging rod can passively perform the axial reciprocating motion of the extension and retraction, and drives the one-way bearing to make the rotating shaft unidirectionally rotate.

The end of the last section of the telescopic rod described in the present invention has a radial shaft hole, and a bearing is accommodated in the shaft hole to be inserted into the bearing by a shaft of the pedal. Locked on the crank, The pedal can be made to rotate relative to the last section of the telescopic rod by the bearing; - the multi-section telescopic rod of the plurality of sockets in the present invention, the inner peripheral surface of the end of the former telescopic rod The ring is provided with a first convex abutting portion, and the outer peripheral surface of the front end of the lower telescopic rod is provided with a second convex abutting portion. When the telescopic rod is axially elongated, the first convex abutting portion is The second convex abutting portions abut to prevent the telescopic rods from being separated from each other;

In the outer peripheral surface of the front end of the last section of the telescopic rod described in the present invention, a second convex abutting portion is protruded from the ring, and the inner peripheral surface of the end of the front telescopic rod that is sleeved on the last section of the telescopic rod is looped. Protruding a first convex abutting portion, wherein when the telescopic rod is axially elongated, the first convex abutting portion abuts the second convex abutting portion to prevent the last portion of the The telescopic rod is separated from the previous telescopic rod;

The first section of the first telescopic rod of the present invention is recessed on one side thereof to form a chamber for receiving the one-way bearing, and has a perforation through the chamber for the shaft to penetrate into the chamber and the one-way The bearing shaft is fixed; the inner peripheral surface of the end of the first section of the first telescopic rod described in the present invention has a first convex abutting portion, and is sleeved on the outer peripheral surface of the front end of the lower telescopic rod of the first section telescopic rod The upper ring has a second convex abutting portion, so that when the telescopic rod is axially elongated, the first convex abutting portion abuts the second convex abutting portion to prevent the The first section of the telescopic rod and the next section of the telescopic rod are separated from each other;

The first protruding portion is provided with a first sliding member, and the second protruding portion is provided with a second sliding member for the first sliding member and the second sliding member. The sliding member reduces the friction when expanding and contracting;

The first sliding member described in the present invention is a wear ring or a steel ball which is only limited by the steel ball ring and can only be rotated in place, and is formed on the first convex portion to be The steel ball and the steel ball groove accommodated by the steel ball ring are either selected; the second sliding member is a wear ring or a steel ball which is restricted by the majority of the steel ball ring and can only be rotated in place and in the Any one of the steel bead grooves formed on the two convex abutting portions for accommodating the steel ball and the steel ball ring;

In the present invention, in addition to the last section of the telescopic rod, a dust jacket is disposed on the opening edge of the end of each section of the telescopic rod;

Compared with the prior art, the invention has the beneficial effects that: the swinging rod can generate a moderate elongation and retraction change according to different positions of the crank, and the abrupt portion can avoid the user. The situation of interference or collision of the foot to increase the comfort and safety during riding, and at the same time increase the overall aesthetic effect. DRAWINGS 1 is a schematic structural view of a conventional swing type transmission bicycle;

2 is a combination diagram of a preferred embodiment of the present invention;

Figure 3 is a partially exploded perspective view of the embodiment of Figure 2;

Figure 4 is a schematic view showing the operation of the swinging lever in the embodiment shown in Figure 2;

Figure 5 is a schematic view showing the operation of the swinging lever in the embodiment shown in Figure 2;

Figure 6 is a partial enlarged cross-sectional view of the embodiment shown in Figure 4;

Figure 7 is a partial enlarged cross-sectional view of the embodiment shown in Figure 4;

Figure 8 is a schematic view of the operation of the embodiment shown in Figure 2.

DESCRIPTION OF REFERENCE NUMERALS: crank 1; sprocket 2; socket wrench 3; oscillating transmission bicycle 100; bicycle body 10; frame 11; handle 12; wheel 13; seat cushion 14; sprocket device 20; Disk 22; chain 23; foot device 30; crank 31; pedal 32; swing device 40; one-way bearing 50; center hole 51; swinging rod 60; first section telescopic rod 61; perforation 611; chamber 612; Abutting portion 613; a first sliding member 614; a steel ball ring 615; a steel ball 616; a steel ball groove 617; a last telescopic rod 62; a radial shaft hole 621; a bearing 622; a second convex portion 4; 624; intermediate section telescopic rod 63; first convex abutting portion 631; first sliding member 632; steel ball ring 633; steel ball 634; steel ball groove 635; bolt 91; second convex portion 636; dust jacket 64; Piece 637. detailed description

In order to enable the reviewing committee to have a better understanding and recognition of the features and characteristics of the present invention, the following preferred embodiments are described as follows:

Referring to FIG. 2 to FIG. 8 , an embodiment of the present invention provides an oscillating transmission bicycle 100 , which mainly includes a bicycle body 10 , a sprocket device 20 , a foot device 30 , and a set of oscillating devices . 40, where:

Referring to FIG. 2 and FIG. 3, the bicycle body 10 has a frame 11, a handle 12, two wheels 13, and a pad 14; the handle 12 is pivotally connected to the front end of the frame 11. For the rider's hand grip control, the two wheels 13 are respectively pivoted at the rear end of the frame 11 and the bottom of the handle 12, and can be driven to rotate. A seat cushion 14 is provided on the frame 11 for the user to ride.

Please refer to FIG. 2 and FIG. 3, the toothed disc device 20 is disposed on the frame 11 and can be stressed. And the axis is turned. The sprocket device 20 has a sprocket wheel 22 and a chain 23, and the sprocket wheel 22 is pivotally mounted on the frame 1 1 by a rotating shaft 21, and the sprocket wheel 22 has its axis Nested on the rotating shaft 21, the chain 23 is connected to the toothed disc 22 and the wheel 13 (rear wheel) at the rear end of the frame 1 1 so that when the toothed disc 22 is subjected to the When the rotating shaft 21 is driven, the wheel 13 (rear wheel) can be rotated by the transmission of the chain 23.

Referring to FIG. 2 and FIG. 3, the footrest device 30 has a pair of cranks 31 and corresponding pedals 32. The pair of cranks 31 are rotatably axially disposed on the frame 1 at one end thereof. On both sides of the first step, the pedal 32 is rotatably locked to the crank 31 for the user to step on.

Referring to Figures 2-7, the swinging device 40 has a one-way bearing 50 and a swinging lever 60.

The one-way bearing 50 has a central hole 51;

The swinging rod 60 has a plurality of socketed telescopic rods, and the telescopic rod defines a first section telescopic rod 61, a last section of the telescopic rod 62 and a plurality of sockets according to the position of the socket. The intermediate section telescopic rod 63 between the first section telescopic rod 61 and the last section of the telescopic rod 62, wherein the first section telescopic rod 61 is a hollow circular tube body adjacent to one end There is a through hole 61 1 penetrating through the two sides, and a cavity 612 communicating with the through hole 61 1 is recessed on one side of the first section telescopic rod 61 to be supplied by the chamber 612 The one-way bearing 50 is accommodated, and the central hole 51 of the one-way bearing 50 is in communication with the through hole 61 1 , and the inner circumferential surface of the first section telescopic rod 61 is directed to the shaft. A first convex abutting portion 613 is formed on the inner side of the first convex abutting portion 613, and a first sliding member 614 is provided on the inner circumferential surface of the first convex abutting portion 613. The first sliding member 614 is used in this embodiment. A plurality of steel balls 616 that are only allowed to rotate in place by the steel ball ring 615 and formed on the first convex abutting portion 613 are a steel ball 616 and a steel ball groove 617 accommodated by the steel ball ring 615, wherein the first section telescopic rod 61 is adjacent to the opening end edge of the end of the first sliding member 614 is provided with a dust jacket 64; A telescopic rod 62 has a cylindrical rod body having a radial shaft hole 621 extending through the two sides at a position adjacent to the end, and a bearing 622 is disposed in the radial shaft hole 621. A second convex abutting portion 623 is protruded from the outer peripheral surface of the front end of the telescopic rod 62, and the outer diameter of the second convex abutting portion 623 is larger than the outer diameter of the shaft of the last telescopic rod 62. And a second sliding member 624 having a low coefficient of friction is disposed on the outer circumferential surface of the second convex abutting portion 623. In the embodiment, the second sliding member 624 is a wear-resistant shield. The wear ring of the middle section; the intermediate section telescopic rod 63 is a tube body of a plurality of different pipe diameters, and a first convex abutting portion is respectively formed on the inner circumferential surface of the end of the intermediate section telescopic rod 63. 631, and a first sliding member 632 is disposed on the first convex abutting portion 631. The first sliding member 632 is a plurality of steel balls 634 which are restricted by the steel ball ring 633 and can only rotate in place, and the steel balls 634 and the steel ball rings 633 which are formed on the first convex abutting portions 631. a detachable steel ball groove 635, wherein the end of the intermediate section telescopic rod 63 is adjacent to the opening end edge of the first sliding member 632, and a dust jacket 64 is disposed. The intermediate section telescopic rod 63 is opposite to the a second convex abutting portion 636 is formed on the outer peripheral annular surface of the first convex abutting portion 631, and the outer diameter of the second convex abutting portion 636 is larger than the outer diameter of the intermediate joint telescopic rod 63. a second sliding member 637 having a low friction coefficient is disposed on the outer peripheral surface of the second convex abutting portion 636. The second sliding member 637 is a wear-resistant material in the embodiment. Made of wear rings.

In the multi-section telescopic rod formed by the first section telescopic rod 61, the last section telescopic rod 62 or/and the intermediate section telescopic rod 63, etc., the inner peripheral surface of the former telescopic rod is used for the ring. The first convex abutting portion abuts the second convex abutting portion of the outer peripheral surface of the lower telescopic rod to prevent the telescopic rods from being separated from each other.

The above is the introduction of the various components of the swing bicycle 100 of the preferred embodiment of the present invention, and then the assembly method and the use characteristics of the present invention are described as follows:

First, the intermediate section telescopic rods 63 are sequentially sleeved, and the last section of the telescopic rods 62 is sleeved on the innermost layer of the intermediate section telescopic rods 63, and the A telescopic rod 61 is sleeved on the outermost layer of the intermediate section telescopic rod 63, so that the intermediate section telescopic rod 63 and the last section of the telescopic rod 62 and the first section telescopic rod 61 can be stressed. While axially elongating (as shown in FIG. 4) and retracting (as shown in FIG. 5), and extending the first section telescopic rod 61 and each intermediate section telescopic rod 63 in the axial direction thereof The first convex abutting portion 613 of the first section telescopic rod 61 and the second convex abutting portion 636 of the next intermediate joint telescopic rod 63 can be interfered with each other to prevent mutual detachment, and The first sliding member 614 disposed on the first convex abutting portion 613 can reduce the friction between the outer wall of the intermediate section telescopic rod 63 and the inner wall of the first section telescopic rod 61 during the telescopic movement (as shown in the figure). 6 shown) to make the smoothness of the telescopic movement better, in addition, when the last section mentioned When the telescopic rod 62 and each of the intermediate section telescopic rods 63 are elongated in the axial direction thereof, the second convex abutting portion 623 of the last section of the telescopic rod 62 and the first convex abutting portion of the front intermediate section telescopic rod 63 can be utilized. The 631 generates interference interference, and prevents the mutual disengagement from occurring, and by means of the second sliding member 624 provided on the second convex abutting portion 623, the intermediate section telescopic rod can be reduced when the telescopic movement is performed. The friction between the inner wall of 63 and the outer wall of the last section of the telescopic rod 62 (as shown in Fig. 7) makes the smoothness of the telescopic movement better. .

Then, the assembled swinging device 40 can be pivoted by the radial shaft hole 621 for the pedal 32 of the foot device 30 to be passed through the bearing 622 to be locked to the crank 31, and then by the first section. The chamber 612 of the telescopic rod 61 is fixedly disposed by the one-way bearing 50, and is supplied to the shaft 21 by the through hole 61 1 The oscillating rod 60 and the one-way bearing 50 are limited to the teeth by being inserted into the chamber 612 to be engaged with the one-way bearing 50, and by the locking of the bolt 91 with the rotating shaft 21. Between the disk device 20 and the foot device 30 (as shown in Figures 3 and 8).

Therefore, when the user steps on the pedal 32 to make the crank 31 move in a circular motion, the swing lever 60 can be swung up and down between predetermined angles, that is, the crankshaft hole 621 is cranked by the end. 31 is driven up and down to swing the other end (the end of the one-way bearing is provided) to rotate between the predetermined angles in the original direction, and the one-way bearing 50 is driven to rotate in one direction by the one-way bearing 50, and further The operation of driving the pedal wheel 13 (rear wheel) is reached.

Since the swinging lever 60 is capable of extending and retracting, when the crank 31 is turned to the position of the wheel near the front end of the frame 1, the swinging lever 60 is driven to be elongated. When the crank 31 is turned to a position close to the rear wheel of the frame, the swing lever 60 is retracted (as shown in Fig. 8). In this way, when the user rides the bicycle 100, the swinging lever 60 can make a moderate extension and retraction change according to different positions of the crank, and there is no abrupt situation to avoid When the user's foot interferes or collides, it not only increases the comfort and safety during riding, but also increases the overall aesthetic effect.

In addition, it is specifically described herein that although the second sliding member in the above embodiment is a wear ring, and the first sliding member is a combination of a steel ball, a steel ball ring, and a steel ball groove, the second can be actually The sliding member is modified by a combination of a steel ball, a steel ball ring and a steel ball groove, and the first sliding member is changed into a wear ring type, or the first sliding member and the second sliding member are both adopted as The wear ring, or the combination of the first sliding member and the second sliding member, which are made of steel balls, steel ball rings and steel ball grooves, can achieve the effect of reducing friction by any type change mentioned above, The smoothness of the expansion and contraction.

Furthermore, the number of sockets of the telescopic rod can be appropriately adjusted according to the size of the frame, and is not a certain amount. Although the present embodiment is presented in a two-wheel type bicycle, it may actually be a single-wheel, two-wheel or more-wheel-type bicycle type, which also achieves the object of the present invention.

In addition, the swinging transmission device of the present invention mainly includes the footrest device 30, the swinging device 4 and the rotating shaft 21 in the foregoing embodiment, wherein the footrest device 30 has a pair of cranks 31 and corresponding pedals 32, The swinging device 4 has a one-way bearing 50 and a swinging rod 60. The one-way glaze 50 has a central hole 51 for receiving and fixing the rotating shaft 21, and the swinging rod 60 includes There are a plurality of telescopic rods 61, 62, 63 which are sleeved, wherein the end of the last section of the telescopic rod 62 is rotatably axially disposed between the pedal 32 and the crank 31, and the front end of the first section telescopic rod 61 is fixed. On the outer side of the one-way bearing 50, when the footrest device 30 drives the swinging lever 60 to swing up and down, the swinging lever 60 can passively The axial reciprocating motion of the extension and retraction is performed, and the one-way bearing 50 is driven to rotate the shaft 21 in one direction to transmit the power of the foot. Of course, the rotating shaft 21 in this embodiment is mainly used as a power output, and the power is transmitted by the toothed disc 22 or other power transmission device.

The detailed construction and function of the footrest device 30 and the swinging device 4 of the oscillating transmission in the present embodiment have been described in detail in the foregoing embodiment of the oscillating transmission bicycle, and will not be described herein.

The above description is intended to be illustrative, and not restrictive, and many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention. All will fall within the scope of protection of the present invention.

Claims

Rights request

1. An oscillating transmission bicycle, characterized in that it comprises:

a bicycle body having at least one wheel;

2. The oscillating transmission bicycle according to claim 1, wherein: the end of the last section of the telescopic rod has a radial shaft hole, and the bearing shaft is provided with a bearing for the bearing A shaft of the pedal is inserted into the bearing and then locked to the crank, so that the pedal can be rotated relative to the last section of the telescopic rod by the bearing.

3. The oscillating transmission bicycle according to claim 1, wherein: in the plurality of telescopic rods of the plurality of sockets, a first convex portion is disposed on an inner circumferential surface of the end of the front telescopic rod a second convex portion is disposed on the outer peripheral surface of the front end of the lower telescopic rod, and the first convex abutting portion and the second convex portion are abutted when the telescopic rod is axially elongated The parts abut to prevent the telescopic rods from being separated from each other.

4. The oscillating transmission bicycle according to claim 1, wherein: the outer peripheral surface of the front end of the last section of the telescopic rod has a second convex abutting portion, and is sleeved in the last section of the telescopic extension a first convex abutting portion is formed on the inner circumferential surface of the distal end of the telescopic rod on the rod, so that when the telescopic rod is axially elongated, the first convex abutting portion and the first portion The two convex abutments abut to prevent the last section of the telescopic rod from being separated from the previous section of the telescopic rod.

The oscillating transmission bicycle according to claim 1, wherein: the inner peripheral surface of the end of the first section telescopic rod has a first convex abutting portion, and is sleeved in the first section. a second convex abutting portion is disposed on the outer peripheral surface of the front end of the telescopic rod of the telescopic rod, so that when the telescopic rod is axially elongated, the first convex abutting portion and the second portion are The convex abutting portion abuts to prevent the first extension The shrink rod and the next telescopic rod are separated from each other.

The oscillating transmission bicycle according to claim 3 or 4 or 5, wherein: the first convex abutting portion is provided with a first sliding member, and the second convex abutting portion is provided with a first sliding member. a second sliding member for reducing the frictional force during expansion and contraction by the first sliding member and the second sliding member.

7. The oscillating transmission bicycle according to claim 6, wherein: the first sliding member is a wear ring or a steel ball which is mostly restricted by the steel ball ring and can only be rotated in place and The first convex abutting portion is formed by any one of the steel ball grooves that can be accommodated by the steel ball and the steel ball ring; the second sliding member is a wear ring or is restricted by a majority of the steel ball ring. The steel ball which can only be rotated in place and the steel ball groove which can be formed on the second convex portion for the steel ball and the steel ball ring can be selected.

8. The oscillating transmission bicycle according to claim 1, wherein: one of the first section telescopic rods is recessed to form a chamber for receiving a one-way bearing, and has a perforation through the chamber , for the shaft to penetrate into the chamber and the one-way bearing shaft.

9. The oscillating transmission bicycle according to claim 1, wherein: in addition to the last section of the telescopic rod, a dust jacket is disposed on the opening edge of the end of each section of the extension rod.

10. An oscillating transmission device, comprising:

a shaft

a foot pedal device having a pair of cranks and corresponding pedals;

1 . The oscillating transmission device according to claim 10, wherein: the end of the last section of the telescopic rod has a radial shaft hole, and a bearing is accommodated in the shaft hole. The second shaft of the pedal is inserted into the bearing and then locked to the crank, so that the pedal can be rotated relative to the last section of the telescopic rod by the bearing.

The oscillating transmission device according to claim 10, wherein: in the plurality of telescopic rods of the plurality of sockets, a first convex portion is disposed on an inner circumferential surface of the end of the front telescopic rod a second convex portion is formed on the outer periphery of the front end of the telescopic rod at the front end, and when the telescopic rod is axially elongated, The first convex abutting portion abuts against the second convex abutting portion to prevent the telescopic rods from being separated from each other.

The swinging transmission device according to claim 10, wherein: the outer peripheral surface of the front end of the last section of the telescopic rod has a second convex abutting portion, and is sleeved in the last section. a first convex abutting portion is formed on the inner circumferential surface of the end portion of the telescopic rod on the telescopic rod, so that when the telescopic rod is axially elongated, the first convex abutting portion and the The second protruding portion abuts to prevent the last section of the telescopic rod from being separated from the previous section of the telescopic rod.

The oscillating transmission device according to claim 10, wherein: the inner peripheral surface of the end portion of the first section telescopic rod has a first convex abutting portion, and is sleeved in the first section a second convex abutting portion is disposed on the outer peripheral surface of the front end of the telescopic rod of the telescopic rod, so that when the telescopic rod is axially elongated, the first convex abutting portion and the second portion are The convex abutting portion abuts to prevent the first section telescopic rod from being separated from the next section of the telescopic rod.

The oscillating transmission device according to claim 12 or 13 or 14, wherein: the first convex abutting portion is provided with a first sliding member, and the second convex abutting portion is provided with a first The two sliding members reduce the frictional force during expansion and contraction by the first sliding member and the second sliding member.

The oscillating transmission device according to claim 15, wherein: the first sliding member is a wear ring or a steel ball which is only limited by the steel ball ring and can only be rotated in place and The first convex abutting portion is formed by any one of the steel ball grooves that can be accommodated by the steel ball and the steel ball ring; the second sliding member is a wear ring or is restricted by a majority of the steel ball ring. The steel ball which can only be rotated in place and the steel ball groove which can be formed on the second convex portion for the steel ball and the steel ball ring can be selected.

The oscillating transmission device according to claim 10, wherein: one of the first section telescopic rods is recessed to form a chamber for receiving the one-way bearing, and has a perforation through the chamber , for the shaft to penetrate into the chamber and the one-way bearing shaft.

18. The oscillating transmission according to claim 10, wherein: in addition to the last section of the telescopic rod, a dust jacket is disposed on the opening edge of the end of each section of the telescopic rod.