CN2212546Y

CN2212546Y - Rowing boat motion type tetracycle

Info

Publication number: CN2212546Y
Application number: CN 94245398
Authority: CN
Inventors: 吴三五
Original assignee: 吴三五
Priority date: 1994-12-16
Filing date: 1994-12-16
Publication date: 1995-11-15
Anticipated expiration: 2004-12-16

Abstract

The utility model relates to a rowing boat motion type vehicle, which comprises axles, a vehicle frame, vehicle wheels, a seat cushion, a flywheel and a chain, wherein, the intermediate position of a front axle is fixed with a fork-shaped frame, a back axle is provided with a rotation axle sleeve, a back wheel is installed at one head of the back rotating axle rotationally, the other back wheel is installed in the axle sleeve, the vehicle frame is bent by two steel pipes, and the middle part of the vehicle frame is a straight pipe part; the front end of the vehicle frame is a front supporting part, the back end of the vehicle is a back supporting part which is separated left and right, the front part of the vehicle frame is rotationally connected with the front axle, the seat cushion is installed on a straight rod part, the vehicle also comprises a pair of handle draw rods which are crossed with the straight pipe part of the vehicle frame, a chain wheel which is installed on the back axle is drawn to cause the vehicle to run, that riding the vehicle likes sitting on a boat to row the boat is reached, and each part of the body is caused to exercise.

Description

Rowing boat motion type tetracycle

The utility model relates to dolly, more particularly, is related to a kind of dolly that reaches partes corporis humani's motion for children are driven as rowing the boat.

Traditional three-wheel or lorry or perambulator all adopt foot-operated mode to drive and to overtake.In use, children are sitting in the seat left-hand seat and shake hands and promote forward trampling sole by pin, so it is bigger to drive the amount of exercise of this class dolly shank, and shank is with the upper part, comprises that waist and arm seldom have an opportunity twisting to obtain stronger motion or exercise except playing equilibrium activity.In addition, existing dolly is on structure, normally be contained in because of its tread plate on the front-wheel axletree of band handlebar, front fork, when dolly is turned, hand and pin need to reverse handlebar and wheel with a direction simultaneously, the dolly vehicle body will be more outwards canting, be easy to make the cyclist to fall and the car band people of the company of causing topples over together.

The purpose of this utility model is to provide a kind of aboard ship to row the boat as seat by bike the time for the deficiency that solves above-mentioned perambulator, but makes the almost whole body ship type trolley that obtains exercising such as arm, waist, chest.

For achieving the above object, axletree before and after trolley of the present utility model comprises, vehicle frame, wheel, seat cushion, flywheel, chain, wherein, described front axle stationkeeping therebetween is equipped with a forked frame, a wheel respectively is equipped with at the two ends of axle, rear axle is provided with rotating axle sleeve, it extends to the end of a side of approaching axle from the middle part of axle, one trailing wheel is assemblied on one on the rear axle rotationally, another trailing wheel is fixedly mounted on the axle sleeve, described vehicle frame is formed by two steel tube bendings, it is middle for leaning on the straight sections that extends in parallel mutually, be connected with each other by bolt or pin between straight sections, its front end is substantially the preceding branch of bending vertically downward, its rear end by two pipes be bent to form vertically downward subsequently to the left and right respectively about the back branch that separates, certainly, branch also can each becomes folding to the left and right and forms again by bending downwards downward vertically earlier behind the rear end.Bottom in preceding branch, promptly be fixed with the support plate of a level on the end face of two steel pipes, the front portion of described vehicle frame and front axle constitute by set relatively rotated mechanism between the shape frame of support plate in the preceding branch and front axle and are rotationally connected, one of back branch of the rear end of described vehicle frame captives joint with rear axle, the described seat cushion of axle sleeve sliding block joint (installation) on another back branch and rear axle is fixedly mounted on the straight sections by the vehicle frame rear end, and described flywheel is installed on axle sleeve one end of rear axle midway location.In addition, this dolly comprises that also a pair of is pull bar, this pair can be intersected pull bar by one and be connected and its lower end extends near the overhead same height and position of rear axle with rotating with seat cushion fwd vehicle frame straight sections, one of described chain is connected to one section extension spring, the extension spring of for example about chain length below 1/2, its body is walked around flywheel, and its end is connected with the lower end of pull bar, and the spring free end of its spring that connects is fixed on the support plate of vehicle frame front end.

More than by novel stent is two handle is equipped with chain, the ship type trolley that spring and flywheel constitute, can make children two handle be driven wheel by sprocket wheel make dolly to overtake, and can step on front axle and control the angle of front-wheel and change the dolly travel direction by pushing away with pin by pulling.Because thisly the pullings of handle are wanted one to stretch a pine, the control of front-wheel is rotated with pin as the arm of rowing the boat, so people's arm, foot, shank all can make health obtain comprehensively movable and exercise in motion up and down to two.

Fig. 1 is the perspective illustration of first embodiment of the present utility model;

Fig. 2 is the partial left side view of a Fig. 1, the forked frame that expression is installed on the front axle and by bindiny mechanism and vehicle frame front end bonded assembly situation;

Fig. 3 is the partial right side view of a Fig. 1, the axle sleeve that expression is installed on the rear axle, flywheel and two the installation of pull bar is concerned;

Fig. 4 is a partial front elevation view of a second embodiment of the invention; On the expression front axle wheel only is housed;

Fig. 5 is the partial side view of a Fig. 4, expression chain etc. with two the situation that is connected of handle and support plate;

See also shown in Fig. 1 to 3 axletree 1 and 2, vehicle frame 3, front and back wheel 4 and 5, seat cushion 6, flywheel 7, chain 8, two before and after the Boating type trolley of first embodiment of the present utility model comprises handle 9 and extension spring 10 etc.Midway location at front axle 1 fixedly mounts a forked frame 11, and a wheel 4 then respectively is housed at its two ends.Be set with an axle sleeve 12 on rear axle 2 slidably, it is positioned at a side of rear axle or extends to axial end from the middle part of rear axle.A trailing wheel 5 is installed in rotation on an end of rear axle 2, and another trailing wheel 5 is fixedly mounted on the end of axle sleeve 12.Vehicle frame 3 is to be formed by two steel tube bendings, the centre of vehicle frame is two parallel straight sections of leaning on mutually or the two streamline tube portions with same crooked style, its front end is essentially from the straight sections front end and bends vertically downward and the preceding branch that constitutes, and its rear end is then for from the straight sections rear end by two pipes separately left and the symmetrical back branch that all is bent to form downwards subsequently to the right.On the preceding branch end of vehicle frame 3, be fixed with a flat board 13.The front portion of vehicle frame 3 and front axle 1 can by dull and stereotyped 13 and forked frame 11 between set relatively rotated mechanism 20 constitute and be rotationally connected.One of the back branch at the rear portion of vehicle frame is fixed on the rear axle 2, and another back branch then is connected rotationally with axle sleeve 12.Seat cushion 6 is fixedly mounted on the straight sections by the vehicle frame rear end.In order to make laying of seat cushion can be suitable for children straddling, general seat cushion slightly is inclined upwardly backward, the slight inclination so the straight sections of vehicle frame 3 also can be designed to make progress backward.Flywheel 9 is installed on the axle sleeve 12 of rear axle midway location.Two is handle 9 two, and for example H or T shape be so that bar portion installs with vehicle frame straight sections interleaved mode and can be installed in rotation on the preceding vehicle frame straight sections of seat cushion 6 by one 14, and its lower end extends to the height and position near rear axle.One termination of chain 8 has extension spring 10.The length of extension spring 10 is about below 1/3rd of chain.Chain 8 is walked around flywheel 7, and the one end then is connected with two bottoms handle 9, and the end of the extension spring that the other end connect 10 of chain 8 then is fixed on the support plate 13.

The rotating mechanism of the front portion of vehicle frame 3 can adopt conventional various forms of relatively rotating parts, for example antifriction-bearing box, plain bearing or other tumbler.But, simple in structure for making in the present embodiment, to process easy to assemblyly, rotating mechanism 20 uses the cone-shaped tumblers.It comprises that a seat board 21 and can be located in thereon tapered rod 22 in relative rotation, described seat board 21 be fixed on the two relative inwalls of forked frame 11 and thereon the surface be provided with cone tank, described tapered rod 22 has with the conical head that cone tank constitutes conical surface bearing fit at the one end captives joint with the flat board 13 that slidably passes the Kong Eryu support on the forked frame upper wall at its other end.

In addition, dolly also has one pair of toe board 16, and they are installed on the front axle 1 between forked frame and the front-wheel 4 separately, so that above pin by bike the time can rest, also can apply different thrust to toe board 16 by pin and reach the effect that dolly is turned.

In another embodiment of the present utility model, the vehicle frame of dolly, two constant handle, trailing wheel, rear axle, chain, flywheel etc., only change the structure of front-wheel and front axle, for example, one of 4 employing of front-wheel and front axle 19 are slightly short than previous embodiment part omitted, front-wheel 4 is installed on the front axle 19 in the forked frame 11, and 19 of described toe boards are installed on the spindle nose that extends the outer front axle 19 of forked frame 11.

Claims

1, a kind of Boating type sports type dolly, axletree before and after comprising, vehicle frame, wheel, seat cushion, flywheel, chain, it is characterized in that described front axle therebetween stationkeeping one forked frame is installed, a wheel respectively is equipped with at its two ends, described rear axle is provided with rotating axle sleeve, it is positioned at the shaft end that extends to from the middle part of rear axle near a side, a described trailing wheel is assemblied in one on rear axle rotationally, another trailing wheel is fixedly mounted on the axle sleeve, described vehicle frame is formed by two steel tube bendings, straight sections for leaning on and extend in parallel mutually each other in the middle of it, its front end is the preceding branch that bends vertically downward, its rear end for by two pipes separately left with the right side be bent to form downwards subsequently about the back branch that separates, preceding branch bottom, promptly be fixed with the support plate of a level on the end face of two steel pipes, the front portion of described vehicle frame and front axle constitute and are rotationally connected by the set mechanism that relatively rotates between support plate in the preceding branch and the forked frame on the front axle, one of back branch of the rear end of described vehicle frame captives joint with rear axle, axle sleeve sliding block joint on another back branch and the rear axle, described seat cushion is fixedly mounted on the straight sections by the vehicle frame rearward end, described flywheel is installed on the axle sleeve of rear axle midway location, in addition, dolly comprises that also a pair of is pull bar, this pull bar can intersect with seat cushion fwd vehicle frame straight sections and be rotatably connected and its lower end extends near the overhead same height of rear axle by one, one of described chain is connected to one section extension spring, its body is walked around flywheel, its end is connected with the lower end of pull bar, and the free end of the extension spring that connects thereafter is fixed on the support plate of vehicle frame front end.

2, dolly according to claim 1, it is characterized in that described rotating mechanism comprises that a seat board and can be located in thereon tapered rod in relative rotation, described seat board is fixed on the two relative walls of forked frame and its upper surface is provided with cone tank, described tapered rod the one end have with the conical head of seat board cone tank bearing fit with then captive joint at its other end for the flat board 13 that slidably passes the Kong Eryu vehicle frame of forked frame upper wall.

3, dolly according to claim 1 is characterized in that also having one pair of toe board, and they are installed on the front axle between forked frame and the front-wheel separately.

4, dolly according to claim 1 is characterized in that described front-wheel is one, is installed on the front axle in the forked frame, and described toe board then is installed in and extends on the outer front axle spindle nose of forked frame.