CN102626270A

CN102626270A - Draw-bar box having traveling supporting mechanism

Info

Publication number: CN102626270A
Application number: CN201210131282XA
Authority: CN
Inventors: 于向军; 刘景扬; 徐志强; 孙艳萍; 胡季
Original assignee: Kunming University
Current assignee: Kunming University
Priority date: 2012-05-02
Filing date: 2012-05-02
Publication date: 2012-08-08
Anticipated expiration: 2032-05-02
Also published as: CN102626270B

Abstract

The invention discloses a draw-bar box having a traveling supporting mechanism, which consists of a box body, a free rotation draw bar, a double-swinging-rod mechanism and a limiting device, wherein two bottom feet of the box body are respectively provided with a trundle wheel; the free rotation draw bar consists of two basic draw bars and two retractable draw bars, the double-swinging-rod mechanism consists of a first swinging rod, a connecting rod, a second swinging rod and a box body, bottom feet of the second swinging rod is provided with a trundle wheel, one end of the first swinging rod is hinged with the box body, the other end of the first swinging rod is hinged with the connecting rod, and the other end of the connecting rod is hinged with the second swinging rod; the limiting device is arranged on the second swinging rod and the connecting rod, and the limiting device consists of a limiting pin and a control pin; the draw-bar box is set at a standing state, the second swinging rod is rotated until a limiting pin body is popped up, and the draw-bar box can be pulled to move only by rotating and pulling out the free rotation draw bar; and the draw-bar box is set at the standing state, a control pin body is pressed and controlled, the second swinging rod is rotated to be screwed into a groove of the box body until the second swinging rod is clamped by a clamping block, the draw bar is withdrawn and rotated to be clamped by the clamping block, so that the box body stays at a laying state.

Description

Draw-bar box with walking supporting mechanism

Technical field

The present invention relates to a kind of draw-bar box, particularly a kind of draw-bar box with walking supporting mechanism.

Background technology

People go on business or the travelling process in; Need to change to vehicle, turnover airport between round station, journey, stay hotel and shopping etc., people all need walking stretch journey, and the draw-bar box majority is to haul walking; The draw-bar box that is in walking states is balance voluntarily; Need people with lifting rod on hand and draw it to walk, labour intensity is big, make happy travelling maybe because of tired out lose happy.

Summary of the invention

The purpose of this invention is to provide a kind of draw-bar box with walking supporting mechanism; This draw-bar box is in walking states balance voluntarily; People need not to use lifting rod on hand, and the pull bar that can rotate freely can adapt to different height needs of people, only with hand pull bar; Draw-bar box just can be walked the laborsaving people's speed of travel that do not influence on more smooth road surface such as square brick pavement or floor.

The present invention is made up of casing, free rotating tension bar, double-lever mechanism and stopping means, and two footing of casing are equipped with castor; Free rotating tension bar is made up of two these pull bars of foundation and two telescopic levers, the shared multidiameter that the Double bearing support that is fixed on the casing supports of the basic pull bar and second fork; Double-lever mechanism is made up of first fork, connecting rod, second fork and casing; One end and the casing of first fork are hinged; The other end of first fork and rod hinge connection; The other end of connecting rod and second fork are hinged, the upper end of second fork and casing pivotal connection, and the second fork footing is equipped with castor; Stopping means is arranged on connecting rod and second and lays out; Stopping means is made up of spacer pin and control pin; Spacer pin is to be made up of spacing key seat, first spring, spacing shank, embedded end cap, and spacing key seat is fixed on second fork, and spacing shank activity is located in the transverse holes of spacing key seat; The front end of spacing shank is provided with first spring; The sheathed embedded end cap in the rear portion of spacing shank, the tapered hole of being convenient to pass on the connecting rod, the rear end of spacing shank can not relatively rotate the locking of the connecting rod and second fork; The control pin is to be made up of second spring, control key seat and control shank, and the activity of control shank is located in the hole of control key seat, and the front end of control shank is provided with second spring, and second spring is between control shank and connecting rod.

The operation principle of stopping means is; Need be by the pressure-controlled shank, rotate hole on second fork to spacing shank and the connecting rod when relative, spacing shank is under the pushing tow of first spring; Spacing shank stretches out the hole of passing on the connecting rod from spacing key seat hole, and the locking of the connecting rod and second fork can not be relatively rotated; By the pressure-controlled shank, the control shank compresses the spacing shank of second spring to ejection, rotates second fork and makes spacing shank compress first spring and return in the spacing key seat hole, removes connecting rod and locks with second fork.

The course of work of the present invention and principle:

Draw-bar box is placed erectility, rotate second fork and end, rotate casing to three castor and land, rotate and stretch out free rotating tension bar and just can draw its walking to hearing that spacing shank ejects;

Draw-bar box is placed erectility, by the pressure-controlled shank and rotate second fork, second fork is changed in the groove of casing, blocked by fixture block until second fork, withdrawal and rotating tension bar are blocked by fixture block, and casing is in laying state.If article are lighter in empty van or the case, the pull bar that will be in the draw-bar box of laying state is pulled out use the same with commercially available draw-bar box.

Beneficial effect of the present invention:

The present invention is simple in structure, good looking appearance, dependable performance, the laborsaving people's speed of travel that do not influence, and can reduce the labour intensity that people draw draw-bar box by a relatively large margin, improves happy that people go on business or travel.Be that people are going on business or the indispensable a kind of smaller vehicle of whilst on tour.

Description of drawings

Fig. 1 is the expansion walking states schematic perspective view of the present invention's embodiment.

Fig. 2 is the side view of Fig. 1.

Fig. 3 be the present invention embodiment pack up the laying state schematic perspective view.

Fig. 4 is the three-dimensional cross-sectional schematic of the stopping means of the present invention when being in walking states.

Fig. 5 is the three-dimensional cross-sectional schematic of the stopping means of the present invention when being in laying state.

The specific embodiment

See also Fig. 1, Fig. 2 and shown in Figure 3, present embodiment is made up of casing 10, free rotating tension bar 4, double-lever mechanism 2 and stopping means 3, and two footing of casing 10 are equipped with castor 13; Free rotating tension bar 4 is made up of two these pull bars of foundation 41 and two telescopic levers 42, basic pull bar 41 and second fork, the 23 shared multidiameters 43 that the Double bearing support that is fixed on the casing 10 supports; Double-lever mechanism 2 is made up of first fork 21, connecting rod 22, second fork 23 and casing 10; One end and the casing 10 of first fork 21 are hinged; The other end of first fork 21 and connecting rod 22 are hinged; The other end of connecting rod 22 and second fork 23 are hinged, the upper end of second fork 23 and casing 10 pivotal connections, and second fork, 23 footing are equipped with castor 13; Like Fig. 4 and shown in Figure 5; Stopping means 3 is arranged on the connecting rod 22 and second fork 23, and stopping means 3 is made up of spacer pin A and control pin B, and spacer pin A is made up of spacing key seat 31, first spring 32, spacing shank 33 and embedded end cap 34; Spacing key seat 31 is fixed on second fork; Spacing shank 33 activities are located in the transverse holes 38 of spacing key seat 31, and the front end of spacing shank 33 is provided with first spring 32, the sheathed embedded end cap 34 in the rear portion of spacing shank 33; Tapered being convenient in the rear end of spacing shank 33 passed the hole on the connecting rod 22, and connecting

rod

22 and 23 lockings of second fork can not be relatively rotated; Control pin B is made up of second spring 35, control key seat 36 and

control shank

37, and 37 activities of control shank are located in the hole of control key seat 36, and the front end of control shank 37 is provided with second spring, 35, the second springs between control shank 37 and connecting rod 22.

The operation principle of stopping means 3 is; Need be by pressure-controlled shank 37; Rotate second fork 23 to spacing shank 33 when relative with the hole on the connecting rod 22; Spacing shank 33 is under the pushing tow of first spring 32, and spacing shank 33 stretches out the hole of passing on the connecting rod 22 from spacing key seat hole, and connecting

rod

22 and 23 lockings of second fork can not be relatively rotated; By pressure-controlled shank 37, the spacing shank 33 of control shank 37 compression second spring 35 to the ejections rotates second fork 23 and makes spacing shank 33 compression first springs 32 and return in spacing key seat 31 holes releasing connecting

rod

22 and 23 lockings of second fork.

The course of work of the present invention and principle:

Draw-bar box is placed erectility, rotate second fork 23 and end, rotate 10 to three castors of casing and land, rotate and stretch out free rotating tension bar 4 and just can draw its walking to hearing that spacing shank 33 ejects;

Draw-bar box is placed erectility, by pressure-controlled shank 37 and rotate second fork 23, second fork 23 is changed in the groove of casing 10, blocked by fixture block 12 until second fork 23, withdrawal and rotating tension bar are blocked by fixture block 11, and casing is in laying state.If article are lighter in empty van or the case, the pull bar that will be in the draw-bar box of laying state is pulled out use the same with commercially available draw-bar box.

Claims

One kind have the walking supporting mechanism draw-bar box, it is characterized in that: be made up of casing (10), free rotating tension bar (4), double-lever mechanism (2) and stopping means (3), two footing of casing (10) are equipped with castor (13); Free rotating tension bar (4) is to be made up of two these pull bars of foundation (41) and two telescopic levers (42), basic pull bar (41) and the shared multidiameter (43) that the Double bearing support that is fixed on the casing (10) supports of second fork (23); Double-lever mechanism (2) is to be made up of first fork (21), connecting rod (22), second fork (23) and casing (10); Second fork (23) footing is equipped with castor (13); One end of first fork (21) and casing (10) are hinged; The other end of first fork (21) and connecting rod (22) are hinged, and the other end of connecting rod (22) and second fork (23) are hinged; Stopping means (3) is arranged on connecting rod (22) and second fork (23); Stopping means (3) is made up of spacer pin (A) and control pin (B); Spacer pin (A) is to be made up of spacing key seat (31), first spring (32), spacing shank (33) and embedded end cap (34); Spacing key seat (31) is fixed on second fork (23); Spacing shank (33) activity is located in the transverse holes (38) of spacing key seat (31), and the front end of spacing shank (33) is provided with first spring (32), the sheathed embedded end cap in the rear portion of spacing shank (33) (34); Tapered being convenient in the rear end of spacing shank (33) passed the hole on the connecting rod (22), and connecting rod (22) and second fork (23) locking can not be relatively rotated; Control pin (B) is to be made up of second spring (35), control key seat (36) and control shank (37); The activity of control shank (37) is located in the hole of control key seat (36); The front end of control shank (37) is provided with second spring (35), and second spring (35) is positioned between control shank (37) and the connecting rod (22).