CN213307931U

CN213307931U - Luggage case convenient for going upstairs and downstairs

Info

Publication number: CN213307931U
Application number: CN202021886257.9U
Authority: CN
Inventors: 乔鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-06-01
Anticipated expiration: 2030-09-02

Abstract

The utility model relates to a luggage case convenient for going upstairs and downstairs, which comprises a case body, wherein the back part of the case body is provided with a pull rod, the bottom of the case body is provided with a walking wheel, the back part of the case body is also provided with a stair climbing wheel, and the bottom of the stair climbing wheel is higher than the bottom of the walking wheel; climb the building wheel pass through the mounting with the box is connected, just climb the building wheel with the mounting rotates to be connected, climb the building wheel can around its with the axis of rotation of mounting rotates to an ending position from an initial position climb the building wheel when being located its initial position, it is in to climb the laminating of building wheel the back of box climb the building wheel when being located its ending position, climb building wheel perpendicular to the back of box. The utility model discloses add the stair climbing wheel in the one side of suitcase that is close to the pull rod, be convenient for drag the suitcase on stair.

Description

Luggage case convenient for going upstairs and downstairs

Technical Field

The utility model relates to a suitcase technical field, concretely relates to suitcase convenient to go up and down stairs.

Background

The bottom of the case is typically provided with two or four road wheels to facilitate pushing or towing of the case. However, the luggage case with the walking wheels at the bottom can only be carried by a user when going upstairs and downstairs, which brings inconvenience to the user, especially young people, women or old people with small strength, and the luggage case with heavy hand is hard to carry, and has potential safety hazards when going upstairs and downstairs.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the to-be-solved technical problem of the utility model is to provide a suitcase convenient to go up and down stairs, its one side that is close to the pull rod at the suitcase adds and climbs the building wheel, is convenient for drag the suitcase on stairs.

In order to solve the technical problem, the utility model provides a luggage case convenient for going upstairs and downstairs, which comprises a case body, wherein the back part of the case body is provided with a pull rod, the bottom of the case body is provided with a traveling wheel, the back part of the case body is also provided with a stair climbing wheel, and the bottom of the stair climbing wheel is higher than the bottom of the traveling wheel; climb the building wheel pass through the mounting with the box is connected, just climb the building wheel with the mounting rotates to be connected, climb the building wheel can around its with the axis of rotation of mounting rotates to an ending position from an initial position climb the building wheel when being located its initial position, it is in to climb the laminating of building wheel the back of box climb the building wheel when being located its ending position, climb building wheel perpendicular to the back of box.

In the utility model, the back of the trunk body of the luggage case is provided with the stair climbing wheel, and the stair climbing wheel is positioned at the initial position of the luggage case under the general state so as not to influence the pushing of the luggage case and prevent the stair climbing wheel from colliding with a user; when need walk up and down stairs, open and climb the building wheel, make it be located its final position, at this moment, climb the building wheel and be perpendicular with the box back of suitcase, can incline and drag the suitcase for climb building wheel and stair contact, under the effect of climbing the building wheel, can reduce the degree of difficulty of carrying the suitcase and walk up and down stairs.

Preferably, the stair climbing wheel is fixedly connected with a connecting piece, and the connecting piece comprises a rotating shaft and a plurality of connecting rods connected with the rotating shaft; a containing groove is formed in one side, close to the box body, of the fixing piece, the rotating shaft is rotatably arranged in the containing groove in a penetrating mode, and a plurality of slideways communicated with the containing groove are further arranged on the fixing piece; the connecting rods penetrate through the corresponding slideways in a one-to-one correspondence mode, and the connecting rods can swing around the rotating shafts in a reciprocating mode in the corresponding slideways under the action of external force, so that the stair climbing wheels are switched between the initial positions and the end positions of the stair climbing wheels.

Preferably, the projections of the slide way and the accommodating groove on the back of the box body are perpendicular to each other.

Preferably, a first limiting groove and a second limiting groove are respectively arranged on the upper side and the lower side of one end of the slide way, the bottom of the first limiting groove penetrates through the top of the slide way, the top of the second limiting groove penetrates through the bottom of the slide way, the depth directions of the first limiting groove and the second limiting groove are perpendicular to the back of the box body, and the first limiting groove and the second limiting groove are positioned on one side far away from the box body; when the stair climbing wheel is located at the end position of the stair climbing wheel, the connecting rod can move upwards or downwards and penetrate through the corresponding first limiting groove or the corresponding second limiting groove. When the stair climbing wheel needs to go upstairs, the connecting rod of the stair climbing wheel falls into the second limiting groove under the action of gravity and the reaction force of the step, and the second limiting groove can limit the connecting rod and prevent the stair climbing wheel from swinging to the initial position; similarly, when needs descend the stair, the connecting rod of climbing the building wheel can fall into first spacing inslot under the reaction force effect of step, carries on spacingly by first spacing groove to the connecting rod, prevents to climb building wheel to its initial position swing.

Preferably, a third limiting groove is further formed in the lower side of the slide way, the third limiting groove is located on one side, close to the box body, of the fixing piece, the top of the third limiting groove penetrates through the bottom of the slide way, and the left side and the right side of the third limiting groove respectively penetrate through the side wall of the accommodating groove and the outer surface of the fixing piece; when the stair climbing wheels are located at the initial positions of the stair climbing wheels, the connecting rods can move downwards and penetrate through the corresponding third limiting grooves. When not needing to use and climbing the building wheel, rotating it to its initial position and accomodating, at this moment, climbing the building wheel downstream under the effect of gravity for the connecting rod falls into the third spacing inslot, and it is spacing to the connecting rod by the third spacing groove, prevents to climb building wheel and to its termination position swing.

Preferably, the fixing member is semi-cylindrical.

Preferably, the fixing piece is connected with the box body through a screw or glued.

Preferably, the fixing piece is made of rubber.

Preferably, the back of box is provided with two climb the building wheel, two climb the building wheel respectively through one the mounting with the box is connected, and two climb building and take turns to and be provided with first actuation spare and second actuation spare respectively, two climb building wheel and all be located initial position, first actuation spare and the mutual actuation of second actuation spare. With this design, the stair climbing wheel can be kept at the initial position and prevented from moving to the final position.

Preferably, the stair climbing wheel is located the downside at the box back the upside at the box back still is provided with a plurality of support columns, when the stair climbing wheel is located initial position, the maximum vertical distance of stair climbing wheel and box back with the highly unanimous of support column.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a luggage case for conveniently going up and down stairs according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a fixing member according to an embodiment of the present invention;

fig. 3 is a front view of a fixing member according to an embodiment of the present invention;

fig. 4 is a rear view of a fixing member according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

fig. 6 is a schematic structural view of the stair climbing wheel according to the embodiment of the present invention.

Description of the drawings:

1-a box body; 2-a pull rod; 3-walking wheels; 4-stair climbing wheels; 5-a fixing piece;

11-a support column; 41-a rotating shaft; 42-connecting rod; 51-a through hole; 52-accommodating grooves; 53-a slide; 54-a first limit groove; 55-a second limiting groove; 56-third limiting groove.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present embodiment discloses a luggage case convenient for going upstairs and downstairs, which includes a case body 1, a pull rod 2 is disposed on the back of the case body 1, a walking wheel 3 is disposed at the bottom of the case body 1, and two stair climbing wheels 4 are further disposed on the back of the case body 1, and the bottoms of the stair climbing wheels 4 are higher than the bottoms of the walking wheel 3, so as not to affect the pushing of the luggage case on a plane.

The stair climbing wheel 4 is fixedly connected with a connecting piece, and the connecting piece comprises a rotating shaft 41 and two connecting rods 42 vertically connected with the rotating shaft 41. In this embodiment, the stair climbing wheel 4 includes three sub-wheels, the three sub-wheels can both rotate and revolve, and the structure of the stair climbing wheel 4 is the prior art, and is widely applied to products such as shopping carts.

Each stair climbing wheel 4 is connected with the box body 1 through a fixing piece 5, the fixing piece 5 is of a semi-cylindrical structure made of rubber, the fixing piece 5 is in screw connection with the box body 1, and a plurality of through holes 51 which are convenient for screws to pass through are formed in the fixing piece 5. Specifically, a holding groove 52 is penetratingly arranged on one side of the fixing piece 5 close to the box body 1 along the length direction thereof, the rotating shaft 41 is rotatably inserted into the holding groove 52, two slide ways 53 penetrating through the holding groove 52 are further arranged on the fixing piece 5, the slide ways 53 are arranged along the radial direction of the fixing piece 5, namely, the projections of the slide ways 53 and the holding groove 52 on the back of the box body 1 are perpendicular to each other, and the front and the back of the slide ways 53 respectively penetrate through a cylindrical surface on the front side of the fixing piece 5 and the back surface attached to the box body.

The two connecting rods 42 are respectively arranged in the corresponding slideways 53 in a penetrating way, the connecting rods 42 can swing around the rotating shaft 41 in a reciprocating way in the corresponding slideways 53 under the action of external force, so that the stair climbing wheels 4 swing between the initial position and the final position, when the stair climbing wheels 4 are positioned at the initial position, the two stair climbing wheels 4 are folded and attached to the back of the suitcase body 1, and at the moment, the suitcase is in a state of being stored or pushed on the plane; when climbing stair wheel 4 and being located its termination point, two climb the equal perpendicular to back of box 1 of stair wheel 4, at this moment, the suitcase can have and climb the building function, and the user only needs slope box 1 for climb stair wheel 4 and step contact and pulling suitcase, the suitcase can be dragged smoothly under the effect of climbing stair wheel, need not portable, convenient to use.

It should be noted that, in this embodiment, the connecting rod 42 and the rotating shaft 41 may also be designed to be connected non-vertically in practice, and at this time, the projection angle of the sliding way 53 and the accommodating groove 52 on the back of the box 1 also needs to be changed correspondingly, so that the connecting rod 42 can move smoothly in the sliding way 53. In addition, in practice, the number of the connecting rods 42 may be 1 or 3 or more, and accordingly, the number of the slide ways 53 also needs to be designed to be consistent with the number of the connecting rods 42.

Further, a first limiting groove 54 and a second limiting groove 55 are respectively arranged on the upper side and the lower side of one end of the slide 53, the bottom of the first limiting groove 54 penetrates through the top of the slide 53, the top of the second limiting groove 55 penetrates through the bottom of the slide 53, the depth directions of the first limiting groove 54 and the second limiting groove 55 are perpendicular to the back of the box body 1, and the first limiting groove 54 and the second limiting groove 55 are located on one side far away from the box body 1. When the stair climbing trolley needs to go upstairs, the connecting rod 42 of the stair climbing wheel at the end position falls into the second limiting groove 55 under the action of gravity and the reaction force of the step, and the second limiting groove 55 can limit the connecting rod 42 and prevent the stair climbing wheel 4 from swinging to the initial position; similarly, when the stair needs to go down the stairs, the connecting rod 42 of the stair climbing wheel 4 can fall into the first limiting groove 54 under the reaction force of the steps, and the first limiting groove 54 limits the connecting rod 42 to prevent the stair climbing wheel 4 from swinging to the initial position. It can be seen that the first and second

limiting grooves

54 and 55 are designed such that the stair climbing wheels 4 are always kept at their end positions during the process of going up and down stairs.

Further, a third limiting groove 56 is further disposed on the lower side of the sliding rail 53, the third limiting groove 56 is located on one side of the fixing member 5 close to the box body 1, the top of the third limiting groove 56 penetrates through the bottom of the sliding rail 53, and the left and right sides of the third limiting groove 56 respectively penetrate through the side wall of the accommodating groove 52 and the outer surface (i.e., the cylindrical surface) of the fixing member 5. When it is not needed to use stair climbing wheel 4, it is rotated to its initial position and accomodates, and at this moment, stair climbing wheel 4 moves down under the effect of gravity for connecting rod 42 falls into third spacing groove 56 (refer to fig. 1), and it is spacing to connecting rod 42 by third spacing groove 56, makes connecting rod 42 keep in its initial position, prevents to climb the swing of stair climbing wheel 4 to its final position.

Further, in order to keep the stair climbing wheels 4 at their initial positions better when the stair climbing wheels are in the storage state, the first attraction piece and the second attraction piece (not shown in the figure) are respectively arranged on the two stair climbing wheels 4, and the first attraction piece and the second attraction piece are attracted to each other when the two stair climbing wheels 4 are both located at the initial positions. In practice, the first attraction piece and the second attraction piece may be magnets with opposite magnetism, or one of them may be a magnet and the other may be iron.

Further, in order to place the back of the luggage case on the ground stably, in this embodiment, two support columns 11 are further disposed on the upper side of the back of the case body 1, and when the stair climbing wheels 4 are located at the initial positions, the maximum vertical distance between the stair climbing wheels 4 and the back of the case body 1 is consistent with the height of the support columns 11.

In practice, the fixing member and the stair climbing wheel assembly in the present embodiment may be disposed at the time of shipment of the luggage case, or may be sold separately and assembled to the luggage case by the user. To facilitate the mounting of the fixing, it is also possible in practice to glue the fixing to the luggage case.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a suitcase convenient to walk up and down stairs, includes the box, and the back of this box is provided with the pull rod, is provided with walking wheel, its characterized in that in the bottom of box:

the back of the box body is also provided with a stair climbing wheel, and the bottom of the stair climbing wheel is higher than the bottom of the travelling wheel;

climb the building wheel pass through the mounting with the box is connected, just climb the building wheel with the mounting rotates to be connected, climb the building wheel can around its with the axis of rotation of mounting rotates to an ending position from an initial position climb the building wheel when being located its initial position, it is in to climb the laminating of building wheel the back of box climb the building wheel when being located its ending position, climb building wheel perpendicular to the back of box.

2. The luggage case for facilitating walking up and down stairs of claim 1, wherein:

the stair climbing wheel is fixedly connected with a connecting piece, and the connecting piece comprises a rotating shaft and a plurality of connecting rods connected with the rotating shaft;

a containing groove is formed in one side, close to the box body, of the fixing piece, the rotating shaft is rotatably arranged in the containing groove in a penetrating mode, and a plurality of slideways communicated with the containing groove are further arranged on the fixing piece;

the connecting rods penetrate through the corresponding slideways in a one-to-one correspondence mode, and the connecting rods can swing around the rotating shafts in a reciprocating mode in the corresponding slideways under the action of external force, so that the stair climbing wheels are switched between the initial positions and the end positions of the stair climbing wheels.

3. The luggage case for facilitating walking up and down stairs of claim 2, wherein:

the projections of the slide way and the accommodating groove at the back of the box body are mutually vertical.

4. The luggage case for facilitating walking up and down stairs of claim 2, wherein:

a first limiting groove and a second limiting groove are respectively arranged on the upper side and the lower side of one end of the slide way, the bottom of the first limiting groove penetrates through the top of the slide way, the top of the second limiting groove penetrates through the bottom of the slide way, the depth directions of the first limiting groove and the second limiting groove are perpendicular to the back of the box body, and the first limiting groove and the second limiting groove are positioned on one side far away from the box body;

when the stair climbing wheel is located at the end position of the stair climbing wheel, the connecting rod can move upwards or downwards and penetrate through the corresponding first limiting groove or the corresponding second limiting groove.

5. The luggage case for facilitating walking up and down stairs of claim 2, wherein:

a third limiting groove is further formed in the lower side of the slide way, the third limiting groove is located on one side, close to the box body, of the fixing piece, the top of the third limiting groove penetrates through the bottom of the slide way, and the left side and the right side of the third limiting groove penetrate through the side wall of the accommodating groove and the outer surface of the fixing piece respectively;

when the stair climbing wheels are located at the initial positions of the stair climbing wheels, the connecting rods can move downwards and penetrate through the corresponding third limiting grooves.

6. The luggage case for facilitating walking up and down stairs of claim 1, wherein:

the fixing member has a semi-cylindrical shape.

7. The luggage case for facilitating walking up and down stairs of claim 1, wherein:

the fixing piece is connected with the box body through screws or glued.

8. The luggage case for facilitating walking up and down stairs of claim 1, wherein:

the fixing piece is made of rubber.

9. The luggage case for facilitating walking up and down stairs of claim 1, wherein:

the back of box is provided with two climb the building wheel, two climb the building wheel respectively through one the mounting with the box is connected, and two climb and take turns to and be provided with first actuation spare and second actuation spare respectively, two climb the building wheel and all be located initial position, first actuation spare and second actuation spare actuation each other.

10. The luggage case for facilitating walking up and down stairs of claim 9, wherein:

the stair climbing wheel is located the downside at box back the upside at box back still is provided with a plurality of support columns when the stair climbing wheel is located initial position, the maximum vertical distance of stair climbing wheel and box back with the highly unanimous of support column.