CN201677694U

CN201677694U - Rotary dragging wheel

Info

Publication number: CN201677694U
Application number: CN2010201919044U
Authority: CN
Inventors: 赖居山
Original assignee: DONGGUAN HEJIE PLASTIC GLUE Co Ltd
Current assignee: DONGGUAN HEJIE PLASTIC GLUE Co Ltd
Priority date: 2010-05-10
Filing date: 2010-05-10
Publication date: 2010-12-22
Anticipated expiration: 2020-05-10

Abstract

A rotary dragging wheel relates to a rotary dragging wheel used for a luggage, which comprises a wheel cap, a wheel carrier, a wheel and a shaft cap, wherein the connecting part of the wheel carrier is provided with a connecting post, the wheel carrier is connected with the wheel cap through the connecting post, and can rotate taking the connecting post as the axle center, and the connecting surface of the wheel carrier and the wheel cap is provided with a holding space for balls to be placed. The axle part is in a hollow cylinder shape, and the connecting part is fixed on the middle external diameter. The inner side of the wheel is provided with a ring slot, the slot is internally provided with an axostyle, and the small wheel is sleeved on the axostyle and can rotate taking the connecting post as the axle center. The shaft cap is in a horn shape, the smaller end thereof is connected with the shaft part, the wheel is sleeved on the shaft cap, the small wheel on the inner side of the wheel is in contact with the shaft cap, and the wheel is positioned between the shaft part and the shaft cap, and can rotate taking the shaft cap as the axle center. The structure of the dragging wheel brings more convenience for turning direction when people drag the luggage; since the rubbing on the rotating part is smaller, the wear is less, and the service life is prolonged; and since the shaft part and the shaft cap are hollow, the weight of the dragging wheel is reduced, and the material is saved.

Description

A kind of rotation tugboat

Technical field

The utility model belongs to the tugboat on the case and bag, refers to a kind of middle part hollow out and the revolvable case and bag tugboat of wheel carrier especially.

Background technology

Now, occur multi-form baggage container on the market, the appearance of these baggage containers is carried the individual and is used article to provide great convenience with oneself when people are gone out.In early days, baggage container only has bale handle structure, to be convenient for people to belt.Yet, walk cooresponding effort with inconvenient, therefore owing to mention baggage container, design engineers have installed tugboat additional in the bottom of baggage container again, and people can be drawn baggage container, have so just alleviated the burden when people go out greatly, walking is got up more convenient, lighter, has saved many muscle power.Traditional tugboat all is to install a transverse axis at the positive center of wheel, making wheel is that rotate in the axle center with this transverse axis, so just make the weight of case and bag drop on the contact surface of transverse axis and wheel, and because the contact surface of transverse axis and wheel is relatively large, so the friction between them is just very big, the result who causes is exactly that transverse axis ruptures easily, and wheel is damaged easily, and wheel rolls not steady.

The utility model content

At the deficiency that above technology exists, the utility model provides a kind of rotation tugboat, and this tugboat is that steamboat is set in wheel, realizes rotation between wheel and the wheel shaft having solved the problems referred to above effectively by steamboat.

The technical scheme that the utility model is taked is as follows:

A kind of rotation tugboat that is used on the case and bag comprises wheel cap, wheel carrier, wheel and shaft-cup.

Wherein, the top of wheel carrier is connecting portion, and the bottom is an axial region, and connecting portion is provided with a joint pin, and wheel carrier is connected with wheel cap by this joint pin, and can be that rotate in the axle center with this joint pin, and the joint face of itself and wheel cap is provided with accommodation space, can place ball; Axial region is the cylindric of hollow, and connecting portion is fixed therein on portion's external diameter.The inboard of wheel is provided with an annular groove, is provided with jack-post in the groove, and steamboat is enclosed within on this jack-post, and can be that rotate in the axle center with the jack-post.Shaft-cup is horn-like, and its less end is connected with axial region, and wheel is enclosed within on the shaft-cup, and its inboard steamboat contacts with shaft-cup, and wheel and can be that rotate in the axle center with the shaft-cup between axial region and shaft-cup.The both sides of wheel cap are bending upwards, and its inside is provided with column.Connecting portion and axial region bonded assembly partly are provided with recess, and the part of wheel stretches into this recess.

The beneficial effects of the utility model are: the ball of placing on the connecting portion and with the connection mode of wheel cap, make wheel carrier can carry out the rotations of 360 degree, thereby wheel can freely be turned to; The middle part hollow out of axial region and shaft-cup has alleviated the weight of tugboat, has saved material; In wheel, set up steamboat, realize rotation between wheel and the wheel shaft, replace cliding friction, reduced friction, reduced loss, prolonged the service life of tugboat, also can make the rolling of wheel more steady simultaneously with friction of rolling by steamboat.

Description of drawings

Fig. 1 is stereoscopic figure of the present utility model;

Fig. 2 is STRUCTURE DECOMPOSITION figure of the present utility model;

Fig. 3 is a cutaway view of the present utility model;

Fig. 4 is the wheel carrier in the utility model and the block diagram of shaft-cup.

Among the figure:

10 wheel caps, 20 wheel carriers,

30 wheels, 40 shaft-cups,

101 columns, 201 connecting portions,

202 axial regions, 203 recesses,

204 joint pins, 205 balls,

206 accommodation spaces, 301 steamboats,

302 jack-posts.

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing:

Stereoscopic figure of the present utility model as shown in Figure 1, among the figure, a kind of rotation tugboat that is used on the case and bag comprises wheel cap 10, wheel carrier 20, wheel 30 and shaft-cup 40.

As Fig. 2, Fig. 3 and shown in Figure 4, the top of wheel carrier 20 is connecting portion 201, the bottom is an axial region 202, connecting portion 201 is provided with a joint pin 204, wheel carrier 20 is connected to the bottom of wheel cap 10 by this joint pin 204, and can be that rotate in the axle center with this joint pin 204, the joint face of itself and wheel cap 10 is provided with accommodation space 206, can place ball 206.Under the effect of joint pin 204 and ball 206, but the rotation of wheel carrier 20 360 degs, and wheel 30 can freely be turned to.Axial region 202 is the cylindric of hollow, and connecting portion 201 is fixed therein on portion's external diameter, and two parts are integral structure.The inboard of wheel 30 is provided with an annular groove, is provided with a plurality of jack-posts 302 in the groove, and these jack-posts 302 are along the equidistant rectangular distribution of annular groove direction.Steamboat 301 is enclosed within on this jack-post 302, and can be that rotate in the axle center with jack-post 302.Shaft-cup 40 is horn-like, and its less end is connected with axial region 202, and the effect by screw tightly locks together.Wheel 30 is inserted in from shaft-cup 40 less ends, and the part that its inboard steamboat 301 stretches out wheel 30 is pressed on the outer wall of shaft-cup 40.The exradius of the end that shaft-cup 40 is bigger is greater than wheel 30 internal diameters, so wheel 30 stably places between axial region 202 and the shaft-cup 40, and can be that rotate in the axle center with shaft-cup 40.The both sides of wheel cap 10 are bending upwards, form the bag wall of an approximate right angle, its inside is provided with five root posts 101, when installing to this tugboat on the case and bag, this five root post 101 stretches into the case and bag bottom, be locked together by screw and case and bag bottom, the bag wall can just wrap up the outer end pin of case and bag, makes tugboat more firm with being connected of case and bag.Connecting portion 201 partly is provided with recess 203 with axial region 202 bonded assemblys, and the part of wheel 30 stretches into this recess 203, has so promptly saved the space, has saved material again.

Its working process is summarized as follows:

When the user drew case and bag, case and bag drove tugboat and move together, and the weight of case and bag is pressed on the ground wheel 30.Wheel 30 is subjected to ground-surface friction force effect, rolls when mobile.Because wheel 30 contact with shaft-cup 40 by steamboat 301, thus steamboat 301 outer wall around shaft-cup 40 under the drive of wheel 30 roll, thereby realization wheel 30 is the axle center rotation with shaft-cup 40.Steamboat 301 is very little with the contact surface of shaft-cup 40, so friction force is also very little, it is very smooth and easy to roll, and has increased the comfort level of user's tugboat case and bag.When customer requirement turns to, needn't consider wheel 30 towards, after directly turning to,, come so wheel carrier 20 and wheel 10 can shift towards the direction that moves ahead automatically because wheel cap 10 is rotatable with the connecting bridge of wheel carrier 20.

Certainly, above embodiment just is explanation rather than restriction the utility model, the above only is preferred embodiment of the present utility model, so all equivalences of being done according to the described method of the utility model patent claim change or modify, is included in the utility model patent claim.

Claims

1. rotation tugboat comprises:

Wheel carrier, its top is connecting portion, the bottom is an axial region, connecting portion is provided with a joint pin, and wheel carrier is connected with wheel cap by this joint pin, and can be that rotate in the axle center with this joint pin, the joint face of itself and wheel cap is provided with accommodation space, can place ball, axial region is the cylindric of hollow, and connecting portion is fixed therein on portion's external diameter;

Wheel, its inboard is provided with an annular groove, is provided with jack-post in the groove, and steamboat is enclosed within on this jack-post, and can be that rotate in the axle center with the jack-post;

Shaft-cup, for horn-like, its less end is connected with axial region, and wheel is enclosed within on the shaft-cup, and its inboard steamboat contacts with shaft-cup, and wheel and can be that rotate in the axle center with the shaft-cup between axial region and shaft-cup.

2. a kind of rotation tugboat according to claim 1 is characterized in that: the both sides of wheel cap are bending upwards, and its inside is provided with column.

3. a kind of rotation tugboat according to claim 1 is characterized in that: connecting portion and axial region bonded assembly partly are provided with recess, and the part of wheel stretches into this recess.