CN1116999A

CN1116999A - Fixing device for wheels of go-cart

Info

Publication number: CN1116999A
Application number: CN 94109322
Authority: CN
Inventors: 郑锦章
Original assignee: MINZHI ENTERPRISE CO Ltd
Current assignee: MINZHI ENTERPRISE CO Ltd
Priority date: 1994-08-17
Filing date: 1994-08-17
Publication date: 1996-02-21

Abstract

The fixing device has an outer hoop with outer frame, an inner wheel axle with corresponding shape inside the hoop, and an easy-to-withdraw leaf spring inside the hoop. The wheel is unloaded by pressing the end of the leaf spring to withdraw the wheel axle, and it is loaded by direct pressing. This device makes the use convenient.

Description

The wheel fixing device of hand barrow

The present invention relates to a kind of wheel fixing device of hand barrow.

Press, original bill of the present invention Taiwan patent the 8220 999 No. eight " the wheel securing structure improvement of hand barrow ", mainly being that design is a kind of has:

1. needn't use any utensil to get final product installation, structure very easily in operation.

2. assemble laborsaving safe structure.

3. suitably allocate the strength of its buckle to get the stable wheel securing structure of an even application of force with the number of shell fragment; Its main structure is to be:

See also shown in the figure four, five, it is provided with structures such as foreign steamer 10, interior wheel shaft 20, shell fragment 30 and axletree 50, and wherein foreign steamer is provided with a retaining collar 11 in central authorities, and the collar is provided with two, four or most fixed orifices 111 relatively in all sides; Interior wheel shaft is to form a cylindrical shell, ring 23 during its central authorities are formed with, and between middle ring and external annulus, be respectively equipped with a plurality of shell fragment grooves 22, be provided with several perforation 21 at external annulus with respect to the fixed orifice place again, and the center of middle ring promptly forms axis hole 24.

Shell fragment is to form the bending body, its end in a lateral piece of bending is provided with the protruding grain of suitable height, lateral piece then forms the shape as shell fragment groove inboard in addition, several shell fragments are inserted respectively in the shell fragment groove, wherein shell fragment one side is pasted the inboard that is butted on the shell fragment groove, lateral plate then is butted on the side in addition of shell fragment groove in addition, and simultaneously protruding grain stretches out in the perforation.

Axletree can pass the vehicle frame bar be through at again in wheel shaft and fix, the outer rim side of wheel shaft in again the collar side of foreign steamer being sheathed on, then the protruding grain of shell fragment combines with the fixed orifice fixing of foreign steamer smoothly and forms a fixed sturcture.

Though original bill is assembled very convenient, but still there is following shortcoming:

1. when dismounting, must get an elongated thing earlier from the protruding grain top pushing that protrudes in fixed orifice, shrink in the shell fragment groove and wheel can be disassembled, because the elongated thing of the certain intensity of searching tool and being not easy should protruding grain pressing down, and the puzzlement that promptly causes assembling or dismantle is its major defect.

2. between interior wheel shaft and foreign steamer only the protruding grain with shell fragment fixes, as preventing that both from relatively rotating, it is good that its intensity should be given enhancing again.

3. interior wheel shaft and foreign steamer are that round is made snapping with several shell fragments, thus when combination relatively turn look for locating point can detain solid, still inconvenient to some extent on assembling.

Main purpose of the present invention is: establish the collar that tool protrudes housing in foreign steamer inside, other establishes the interior wheel shaft of relative shape, establishes shell fragment in the interior wheel shaft, and this shell fragment is established the compressing tablet that bends and go out in end, so when the compressing tablet that pushes shrapnel, interior wheel shaft can be taken out from the collar immediately, convenient in the use, in addition, because the collar and interior wheel shaft have been improved all to non-circular, so its unlikely relative motion, promptly intensity significantly strengthens, and is a more superior product improvement.

Another object of the present invention is to: the both end sides at interior wheel shaft is provided with recessed expansion groove, and is equipped with bearing respectively in recessed expansion groove, make hand barrow have preferable bearing capacity and the rotation more smooth and easy.

The invention provides a kind of wheel fixing device of hand barrow, mainly is to establish a collar in foreign steamer central authorities, can cooperate the interior wheel shaft of tool shell fragment groove to insert in the collar, and simultaneously that the collar and interior wheel thrust collar is solid by the protruding grain of shell fragment, is primarily characterized in that:

The collar is respectively equipped with the  shape housing of protrusion in its relative both sides, make the housing inboard of collar inboard be formed with the frame groove, then is provided with fixed orifice in the outside of housing;

The collar part that interior wheel shaft is established a tool axis hole in central authorities, both sides then are respectively equipped with two protruding frames, then form the shell fragment groove between the outer wall of protruding frame inboard and collar part, then are provided with perforation in the outside of protruding frame with respect to fixed orifice;

Shell fragment is provided with compressing tablet in V-arrangement bullet end one side end, is provided with protruding grain in the shell fragment outside; Make shell fragment be located at interior and protruding of shell fragment groove and can be positioned at fixed orifice and perforation place, pressing down compressing tablet can deviate from protruding grain and all members of wheel be disassembled.

In one embodiment, the wheel fixing device of above-mentioned hand barrow, wheel shaft is formed with recessed expansion groove in it in the collar part rear and front end, can establish bearing in it.

Further specify architectural feature of the present invention and purpose below in conjunction with accompanying drawing.

Fig. 1 is STRUCTURE DECOMPOSITION figure of the present invention.

Fig. 2 is a sectional structure chart of the present invention.

Fig. 3 is embodiments of the invention figure.

Fig. 4 applies for the STRUCTURE DECOMPOSITION figure of No. eight application cases of the 8220 999 for Taiwan.

Fig. 5 applies for the sectional structure chart of No. eight application cases of the 8220 999 for Taiwan.

Please referring to Fig. 1, shown in Figure 2, but foreign steamer 10 has the tire sleeve (not shown) in outside sheathing, central then be provided with the collar 11 of a tool annular distance 111, then join in foreign steamer 10 peripheries and 11 of the collars with the wheel rib, wherein the collar 11 is to form circle, but be respectively equipped with the 

shape housing

12,13 of protrusion in relative both sides, make

housing

12,13 inboards of the collar 11 inboards be formed with frame groove 121,131, then be provided with fixed orifice 14 in the outside of

housing

12,13.

Interior wheel shaft 20 be designed to relatively with the collar 11 identical shaped, promptly establish a circular collar part 21 in central authorities, these collar part 21 central authorities are formed with axis hole 25, then be formed with the recessed expansion groove 26 of putting bearing 27 in both sides, axis hole 25 front and back, then be respectively equipped with two

protruding frames

22,23 in collar part 21 both sides, between the outer wall of protruding

frame

22,23 inboards and collar part 21, then form shell fragment groove 24, then be provided with perforation 221 in the outside of protruding frame 22.

Shell fragment 30 roughly forms just like V-arrangement bullet end 33, and the one side is longer, and establishes a compressing tablet 32 endways, then is provided with protruding grain 31 on the bullet end 33 of compressing tablet 32 sides.

Shell fragment 30 can place in the shell fragment groove 24, make bullet end 33 be butted on the both sides of shell fragment groove 24, protruding grain 31 then is piercing in perforation 221, and compressing tablet 32 is to stretch out in outside the shell fragment groove 24, interior wheel shaft 20 is provided with bearing 27 in recessed expansion groove 26, interior wheel shaft 20 is forced in the collar 11 of foreign steamer 10, collar part 21 and protruding

frame

22,23 involutory respectively in annular distance 111 and frame groove 121, in 131, the protruding grain 31 of shell fragment 30 is then extended in fixed orifice 14 and with interior wheel shaft 20 and foreign steamer 10 2 member buckles, then can cooperate vehicle frame bar 50, the assembly of an axletree 51 and a pad 40, and form a wheel securing structure.

Please,, then only need to stretch out in the outer compressing tablet 32 of shell fragment and inwardly oppress, can make protruding 31 and move down and deviate from the outside again drawing of fixed orifice 14, all members of wheel can be deviate from if desire is disassembled wheel referring to shown in Figure 3, very convenient.

The present invention has following advantage:

1. this case only needs the compressing tablet of shell fragment is pressed down when disassembling wheel, can be with the wheel member Take apart, in the use more convenient with compressing of elongated thing than original bill.

2. because interior wheel shaft and the collar of this case are non-circular, make two members be difficult for producing relatively The situation of rotation is so its shock resistance is better.

3. this case is because the collar and the interior between centers of taking turns have specific shape, so can one when making up Inferiorly namely align, can avoid the original bill circle to have rotation to seek the trouble of anchor point, this case is in assembling Comparatively convenient.

4. because the collar part two ends of interior wheel shaft can be provided with bearing, its bearing capacity can significantly be carried Height, and more smooth and easy and attenuating friction when wheel turns.

Claims

1. the wheel fixing device of a hand barrow mainly is to establish a collar in foreign steamer central authorities, can cooperate the interior wheel shaft of tool shell fragment groove to insert in the collar, and simultaneously that the collar and interior wheel thrust collar is solid by the protruding grain of shell fragment, is primarily characterized in that:

2. the wheel fixing device of hand barrow according to claim 1, it is characterized in that: interior wheel shaft is formed with recessed expansion groove in the collar part rear and front end, can establish bearing in it.