CN205524685U - Push -down tricycle structure - Google Patents

Abstract

The utility model relates to a push -down tricycle structure, which comprises a vehicle rack, set up the seat on the frame, set up pusher mechanism at the frame front end, set up the wheel bottom the frame, the wheel includes a preceding wheel and two rear wheels, the front truck wheel lies in pusher mechanism below, two rear wheels are located the below of seat, pusher mechanism includes the push rod, set up drive arrangement between push rod and preceding wheel, drive arrangement is including fixing the axis of rotation in the push rod bottom, set up first one -way bearing in the axis of rotation, set up first fluted disc fixing base on first one -way bearing, set up first fluted disc on first fluted disc fixing base, set up first flywheel in the front on the wheel, connect through first chain between first fluted disc and the first flywheel. Can make things convenient for the inconvenient people of old person and legs and feet to use, increase the arm of force, use light more swiftly to can continuously operate, save physical power and time.

Description

Push-down structure for tricycle

Technical field

This utility model relates to production and the manufacture field of tricycle, especially relates to a kind of push-down structure for tricycle.

Background technology

Tricycle (tricycle), installs three wheels and has the compact car of simple and mechanical transmission, device compartment or flat board, use Carrying out manned or loading, tricycle is a kind of vehicles developed by rickshaw and bicycle, can manned also can freight. The drive mechanism of tricycle, transmits power mostly in the way of trampling or be hand at present, for old people and the people of legs and feet inconvenience Group, uses very inconvenient, and current hand driven bicycle (tricycle) is the shortest due to the crank arm of force, causes user very Painstakingly, especially going up a slope when, the most painstakingly, existing tricycle front is susceptible to crooked, it has not been convenient to use, and after Wheel uses screw and nut to install, it has not been convenient to dismantles and keeps in repair.

Summary of the invention

Technical problem to be solved in the utility model is to provide push-down three a kind of light driving and easy to maintenance Wheel bassinet structure.

The technical scheme in the invention for solving the technical problem is: a kind of push-down structure for tricycle, including Vehicle frame, arranges seat on described vehicle frame, arranges push rod drive mechanism in described vehicle frame front end, at described bottom of frame Arranging wheel, described wheel includes a front vehicle wheel and two rear wheels, and described front vehicle wheel is positioned under push rod drive mechanism Side, two described rear wheels are positioned at the lower section of seat, it is characterised in that described push rod drive mechanism includes push rod, in institute Arranging driving means between push rod and the front vehicle wheel stated, described driving means includes the rotary shaft being fixed on bottom push rod, First unilateral bearing is set in described rotary shaft, the first described unilateral bearing arranges the first fluted disc and fixes seat, in institute The first fluted disc stated is fixed and is arranged the first fluted disc on seat, arranges the first flywheel on described driving wheel, the first described fluted disc and Connected by the first chain between first flywheel.

The most concrete, described rotary shaft arranges the second unilateral bearing, the second described unilateral bearing sets Put the second fluted disc and fix seat, fixing at the second described fluted disc, the second fluted disc is set on seat, described driving wheel arranges Two flywheels, are connected by the second chain between the second described fluted disc and the second flywheel；Described the second unilateral bearing and first It is in opposite direction that unilateral bearing is installed.

The most concrete, the first directive wheel is set by the first described chain and ensures that the first fluted disc and the first flywheel realize Rotating in same direction；Second directive wheel is set by the second described chain and the 3rd directive wheel ensures that the second fluted disc and the second flywheel realize Backwards rotation.

The most concrete, described push rod includes sleeve pipe, arranges handlebar in described sleeve pipe, on described sleeve pipe Being provided for the saddle tube bundle of fixing handlebar, described handlebar includes handlebar tube and handlebar head, in the outside of described handlebar tube Arranging a locating slot, described locating slot is parallel with the axis of handlebar tube, arranges a screwed hole on described sleeve pipe, described Saddle tube bundle be provided with a through hole, a location screw is set in described through hole, described location screw is through convex after screwed hole The position gone out is positioned at locating slot.

The most concrete, described cannula tip is parallel to axis direction and offers and tighten up groove, and described tightens up groove extremely Lack two and be evenly distributed on sleeve pipe.

The most concrete, described saddle tube bundle includes a ring-shaped clip, arranges an opening on described ring-shaped clip Place, arranges two external parts at described opening part, arranges a stretching screw, described tension on two described external parts Screw one end is nut, and the other end is tension handle, and described tension handle is arranged on the another of stretching screw by a rotary shaft One end.

The most concrete, it is perpendicular on axis direction arrange a fixing hole, described push rod in the middle part of described rotary shaft It is positioned at fixing hole, described rotary shaft offers screwed hole and connects with fixing hole, be provided with spiral shell at described push rod head Pit, the described screwed hole in rotary shaft is alignd with the screwed hole of push rod head and is fixed by fixing screw.

The most concrete, described push rod is tubular, arranges interior jacking block, in described in described push rod head The screwed hole that jacking block is provided with in the screwed hole of screwed hole and push rod head and rotary shaft aligns, and fixing screw is fixed on interior top In the screwed hole of block, described interior jacking block profile is half arc the Inner arc laminating with push rod.

The most concrete, described rear wheel is connected by shaft configurations with the rotating shaft on vehicle frame, described axostylus axostyle knot Structure includes that axostylus axostyle, described axostylus axostyle are tubular, is provided with slidably shaft core in the middle part of described axostylus axostyle, at described shaft core head Settings button, bottom described axle end and button between back-moving spring is set；At described axostylus axostyle afterbody, rolling is set The hole of bead is internal with axostylus axostyle to be connected；Spherical groove is set at described shaft core afterbody, ball, institute are set in described spherical groove The ball stated is positioned at ball hole, and the diameter of described ball hole is less than the diameter of ball.

The most concrete, described shaft core afterbody is set to screw, and described spherical groove is positioned at shaft core and screw Junction.

The beneficial effects of the utility model are: after have employed said structure, it is possible to facilitate old people and legs and feet not side Just people uses, and adds the arm of force, uses more light and fast, and can persistently operate, save muscle power and time Between；And handlebar is not easy skew, and rear wheel achieves fast quick-detach, convenient maintenance.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of this utility model push rod drive mechanism；

Fig. 3 is the perspective view of Fig. 2；

Fig. 4 is the structural representation of this utility model driving means；

Fig. 5 is the structural representation of this utility model front vehicle wheel；

Fig. 6 is the structural representation of this utility model push rod；

Fig. 7 is the structure for amplifying schematic diagram of part A in Fig. 6；

Fig. 8 is the structural representation of this utility model saddle tube bundle；

Fig. 9 is the fractionation structural representation of this utility model push rod and rotary shaft junction；

Figure 10 is the structural representation of this utility model shaft configurations.

In figure: 1, vehicle frame；2, seat；3, front vehicle wheel；4, rear wheel；5, push rod；6, driving means；7, shaft configurations；8、 Fixing hole；9, fixing screw；10, interior jacking block；51, sleeve pipe；52, saddle tube bundle；53, handlebar tube；54, handlebar head；55, locating slot； 511, screwed hole；512, groove is tightened up；521, ring-shaped clip；522, external part；523, stretching screw；524, nut；525, tension Handle；526, rotary shaft；527, through hole；528, location screw；61, driving means；62, the first chain；63, the second chain；64、 First directive wheel；65, the second directive wheel；66, the 3rd directive wheel；611, rotary shaft；612, the first unilateral bearing；613, the first tooth Seat fixed by dish；614, the first fluted disc；615, the second unilateral bearing；616, seat fixed by the second fluted disc；617, the second fluted disc；618, side Key；619, long key；6110, the first flywheel；6111, the second flywheel；71, axostylus axostyle；72, shaft core；73, button；74, back-moving spring； 75, ball hole；76, spherical groove；77, ball；78, screw；79, nut.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is explained in detail.

As shown in Figure 1, Figure 2, a kind of push-down structure for tricycle shown in Fig. 3, Fig. 4 and Fig. 5, including vehicle frame 1, at described vehicle frame Seat 2 is set on 1, push rod drive mechanism is set in described vehicle frame 1 front end, wheel is set bottom described vehicle frame 1, described Wheel include a front vehicle wheel 3 and two rear wheels 4, described front vehicle wheel 3 is positioned at below push rod drive mechanism, described in two Rear wheel 4 be positioned at the lower section of seat 2, described push rod drive mechanism includes push rod 5, described push rod 5 and front vehicle wheel 3 it Between driving means 6 is set, described driving means 6 includes the rotary shaft 611 being fixed on bottom push rod 5, in described rotary shaft First unilateral bearing 612 is set on 611, the first described unilateral bearing 612 arranges the first fluted disc and fixes seat 613, in institute The first fluted disc stated is fixed and is arranged the first fluted disc 614 on seat 613, arranges the first flywheel 6110 on described front vehicle wheel 3, described Connected by the first chain 62 between first fluted disc 614 and the first flywheel 6110；Second is arranged unidirectional in described rotary shaft 611 Bearing 615, arranges the second fluted disc on the second described unilateral bearing 615 and fixes seat 616, fix seat at the second described fluted disc Second fluted disc 617 is set on 616, described front vehicle wheel 3 arranges the second flywheel 6111, the second described fluted disc and 617 Connected by the second chain 63 between two flywheels 6111；The second described unilateral bearing 615 and the first unilateral bearing 612 are installed In opposite direction；The first described chain 62 side arranges the first directive wheel 64 and ensures that the first fluted disc 614 and the first flywheel 6110 realize Rotating in same direction；Described second chain 63 is other arranges the second directive wheel 65 and the 3rd directive wheel 66 ensures the second fluted disc 617 and the Two flywheels 6111 realize backwards rotation；The first described unilateral bearing 612 and the first fluted disc are fixed between seat 613 and the second list Fix with the second fluted disc to bearing 615 and realize being connected by square key 618 between seat 616；The first described unilateral bearing 612 and Two unilateral bearings 615 are connected in rotary shaft 611 by long key 619.

The when of use, user promotes forward push rod 5, push rod 5 to drive rotary shaft 611 to rotate, and rotary shaft 611 drives One unilateral bearing 612 and the second unilateral bearing 615 rotate forward, and now the first unilateral bearing 612 drives the first fluted disc 614 turns Dynamic, the first fluted disc 614 drives the first flywheel 6110 to rotate by the first chain 62, and the first flywheel 6110 drives front vehicle wheel 3 forward Motion；Simultaneously as the first unilateral bearing 612 is reversely installed with the second unilateral bearing 615, second fluted disc the 617, second chain 63 And second flywheel 6111 remain stationary as；When user pulls back push rod 5, the second unilateral bearing 615 drives the second fluted disc 617 rotate, and the second fluted disc 615 drives the second flywheel 6111 to rotate by the second chain 63, and the second flywheel 6111 drives front vehicle wheel 3 Travelling forward, now first fluted disc the 614, first chain 62 and the first flywheel 6110 remain stationary as.Due to the first fluted disc 614 with First flywheel 6110 keeps moving in the same direction, and the second fluted disc 617 and the second flywheel 6111 keep reverse movement, during whole, Tricycle the most persistently keeps travelling forward.

Push rod 5 as described in shown in Fig. 6, Fig. 7 and Fig. 8 includes sleeve pipe 51, arranges handlebar, in institute in described sleeve pipe 51 Being provided for the saddle tube bundle 52 of fixing handlebar on the sleeve pipe 51 stated, described handlebar includes handlebar tube 53 and handlebar head 54, The outside of described handlebar tube 53 arranges a locating slot 55, and described locating slot 55 is parallel with the axis of handlebar tube 53, in institute Arranging a screwed hole 511 on the sleeve pipe 51 stated, described saddle tube bundle 52 is provided with a through hole 527, arranges in described through hole 527 One location screw 528, the position that described location screw 528 protrudes after passing screwed hole 511 is positioned at locating slot 55；Described Sleeve pipe 51 top is parallel to axis direction and offers and tighten up groove 512, and described tightens up groove 512 at least two and be evenly distributed on set On pipe 51；Described saddle tube bundle 52 includes a ring-shaped clip 521, arranges an opening part, in institute on described ring-shaped clip 521 The opening part stated arranges two external parts 522, arranges a stretching screw 523 on two described external parts 522, and described draws Tight screw 523 one end is nut 524, and the other end is tension handle 525, and described tension handle 525 is pacified by a rotary shaft 526 It is contained in the other end of stretching screw 523.

The when of installation, first handlebar tube 53 is inserted in sleeve pipe 51, now by the tension handle on saddle tube bundle 52 Ring-shaped clip 521 is strained by 525, it is ensured that will not move up and down, simultaneously through hole on ring-shaped clip 521 527 with on sleeve pipe 51 Locating slot 55 on screwed hole 511 and handlebar tube 53 aligns, and is fixed by location screw 528 and is positioned, it is ensured that handlebar Will not offset left and right, improve the safety used.Simple in construction, easy to operate.

Being perpendicular on axis direction arrange a fixing hole 8 as shown in Figure 9 in the middle part of rotary shaft 611, described push rod 5 is positioned at solid Determine in hole 8, described rotary shaft 611 offers screwed hole and connects with fixing hole 8, be provided with spiral shell at described push rod 5 head Pit, the described screwed hole in rotary shaft 611 is alignd with the screwed hole of push rod 5 head and is fixed by fixing screw 9； Described push rod 5 is tubular, arranges interior jacking block 10, be provided with screw thread on described interior jacking block 10 in described push rod 5 head Screwed hole on the screwed hole of hole and push rod 5 head and rotary shaft 611 aligns, and fixing screw 9 is fixed on the spiral shell of interior jacking block 10 In pit, described interior jacking block 10 profile is half arc the Inner arc laminating with push rod 5；The described spiral shell in rotary shaft 611 Pit, the screwed hole of push rod 5 head respectively arrange two and symmetry, and described interior jacking block 10 is two, and described fixing screw 9 is Two.

The when of installation, first push rod 5 is inserted in the fixing hole 8 in rotary shaft 611, interior jacking block 10 is placed into and pushes away At bar 5 endoporus so that the screwed hole pair on screwed hole, the screwed hole of push rod 5 head and interior jacking block 10 in rotary shaft 611 Together, it is fixed by fixing screw 9, i.e. completes whole installation process.The Inner arc laminating of interior jacking block 10 and push rod 5, will not The inwall of push rod 5 is damaged.

Rear wheel 4 is connected by shaft configurations 7 with the rotating shaft on vehicle frame 1 as shown in Figure 10, and described shaft configurations 7 includes Axostylus axostyle 71, described axostylus axostyle 71, in tubular, is provided with slidably shaft core 72 in the middle part of described axostylus axostyle 71, in described shaft core 72 Head settings button 73, bottom described axostylus axostyle 71 end and button 73 between back-moving spring 74 is set；At described axostylus axostyle Arrange ball hole 75 at 71 afterbodys to connect with axostylus axostyle 71 inside；At described shaft core 72 afterbody, spherical groove 76 is set, described Spherical groove 76 in ball 77 is set, described ball 77 is positioned at ball hole 75, and the diameter of described ball hole 75 is less than The diameter of ball 77；Described shaft core 72 afterbody is set to screw 78, and described spherical groove 76 is positioned at shaft core 72 and screw 78 Junction；One ring-shaped step is set inside described axostylus axostyle 71 for placing back-moving spring 74；Described axostylus axostyle 71 head Connecting a nut 79, described button 73 is coated on nut 79 in hood-like；Described ball hole 75 goes up hole and lower opening, institute respectively The diameter of the lower opening stated is more than the diameter of ball 77, and the diameter in described upper hole is less than the diameter of ball 77.

The when of dismounting, first pressing the button 73, button 73 compression reseting spring 74 also makes shaft core 72 slid inward, Sliding into appointment position, in now ball 77 is just fully contemplated to spherical groove 76, ball 77 is completely in axostylus axostyle 71 Portion, now, extracts wheels out, completes disassembling section；Release button 73, back-moving spring 74 recovers, and shaft core 72 is pulled out, shaft core Ball 77 is ejected and is exposed at outside axostylus axostyle 71 by ball hole 75 part by 72.

When in use, convenient propelling, especially going up a slope when, it is possible to quickly to damage for whole tricycle Rear wheel dismounts, and handlebar is not easy skew, simple in construction, uses and easy to maintenance.

It is emphasized that: be the most only preferred embodiment of the present utility model, not this utility model appointed What pro forma restriction, every according to technical spirit of the present utility model, above example is made any simple modification, etc. With change and modification, all still fall within the range of technical solutions of the utility model.

Claims (10)

1. a push-down structure for tricycle, including vehicle frame (1), arranges seat (2), described on described vehicle frame (1) Vehicle frame (1) front end arranges push rod drive mechanism, arranges wheel, before described wheel includes one in described vehicle frame (1) bottom Wheel (3) and two rear wheels (4), described front vehicle wheel (3) is positioned at below push rod drive mechanism, two described rear wheels (4) lower section of seat (2) it is positioned at, it is characterised in that described push rod drive mechanism includes push rod (5), at described push rod (5) And arranging driving means (6) between front vehicle wheel (3), described driving means (6) includes the rotary shaft being fixed on push rod (5) bottom (611), described rotary shaft (611) arranges the first unilateral bearing (612), on described the first unilateral bearing (612) First fluted disc is set and fixes seat (613), fix that at the first described fluted disc the first fluted disc (614) is set on seat (613), described First flywheel (6110) is set on front vehicle wheel (3), by first between described the first fluted disc (614) and the first flywheel (6110) Chain (62) connects.

Push-down structure for tricycle the most according to claim 1, it is characterised in that described rotary shaft (611) is upper to be arranged Second unilateral bearing (615), arranges the second fluted disc on described the second unilateral bearing (615) and fixes seat (616), described Second fluted disc is fixed and is arranged the second fluted disc (617) on seat (616), arranges the second flywheel (6111) on described front vehicle wheel (3), Connected by the second chain (63) between described the second fluted disc (617) and the second flywheel (6111)；The second described one-way shaft Hold (615) in opposite direction with what the first unilateral bearing (612) was installed.

Push-down structure for tricycle the most according to claim 2, it is characterised in that described the first chain (62) is other to be arranged First directive wheel (64) ensures that the first fluted disc (614) and the first flywheel (6110) realize rotating in same direction；The second described chain (63) side arranges the second directive wheel (65) and the 3rd directive wheel (66) ensures that the second fluted disc (617) and the second flywheel (6111) realize Backwards rotation.

Push-down structure for tricycle the most according to claim 1, it is characterised in that described push rod (5) includes sleeve pipe (51), handlebar is set in described sleeve pipe (51), described sleeve pipe (51) is provided for the saddle tube bundle of fixing handlebar (52), described handlebar includes handlebar tube (53) and handlebar head (54), arranges one in the outside of described handlebar tube (53) Locating slot (55), described locating slot (55) is parallel with the axis of handlebar tube (53), arranges a spiral shell on described sleeve pipe (51) Pit (511), described saddle tube bundle is provided with a through hole (527), arranges a location screw (528) in described through hole (527), The position that described location screw (528) protrudes after passing screwed hole is positioned at locating slot (55).

Push-down structure for tricycle the most according to claim 4, it is characterised in that described sleeve pipe (51) top is parallel to Axis direction offers and tightens up groove (512), and described tightens up groove (512) at least two and be evenly distributed on sleeve pipe (51).

Push-down structure for tricycle the most according to claim 4, it is characterised in that described saddle tube bundle (52) includes a ring Shape clip (521), arranges an opening part on described ring-shaped clip (521), arranges two external parts at described opening part (522), arranging a stretching screw (523) on two described external parts (522), described stretching screw (523) one end is Nut (524), the other end is tension handle (525), and described tension handle (525) is arranged on by a rotary shaft (526) and draws The other end of tight screw (523).

Push-down structure for tricycle the most according to claim 1, it is characterised in that hang down in described rotary shaft (611) middle part Directly arranging a fixing hole (8) on axis direction, described push rod (5) is positioned at fixing hole (8), in described rotary shaft (611) offer screwed hole on to connect with fixing hole (8), be provided with screwed hole, described rotary shaft at described push rod (5) head (611) screwed hole on is alignd with the screwed hole of push rod (5) head and is fixed by fixing screw (9).

Push-down structure for tricycle the most according to claim 7, it is characterised in that described push rod (5) is tubular, in institute In push rod (5) head stated, interior jacking block (10) is set, described interior jacking block (10) is provided with screwed hole and push rod (5) head Screwed hole alignment on screwed hole and rotary shaft (611), fixing screw (9) is fixed in the screwed hole of interior jacking block (10), institute Interior jacking block (10) profile stated is half arc the Inner arc laminating with push rod (5).

Push-down structure for tricycle the most according to claim 1, it is characterised in that described rear wheel (4) and vehicle frame (1) On rotating shaft by shaft configurations (7) connect, described shaft configurations (7) includes axostylus axostyle (71), and described axostylus axostyle (71) is in cylinder Shape, is provided with slidably shaft core (72) at described axostylus axostyle (71) middle part, at described shaft core (72) head settings button (73), Between described axostylus axostyle (71) end and button (73) bottom, back-moving spring (74) is set；At described axostylus axostyle (71) afterbody Arrange ball hole (75) to connect with axostylus axostyle (71) inside；At described shaft core (72) afterbody, spherical groove (76) is set, described Spherical groove (76) in ball (77) is set, described ball (77) is positioned at ball hole (75), described ball hole (75) Diameter less than the diameter of ball (77).

Push-down structure for tricycle the most according to claim 9, it is characterised in that described shaft core (72) afterbody is arranged For screw (78), described spherical groove (76) is positioned at the junction of shaft core (72) and screw (78).