CN202413863U

CN202413863U - Foldable frame

Info

Publication number: CN202413863U
Application number: CN2011204864758U
Authority: CN
Inventors: 杨青; 杨君
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-30
Filing date: 2011-11-30
Publication date: 2012-09-05
Anticipated expiration: 2021-11-30

Abstract

The utility model discloses a foldable frame, which comprises a sliding pull rod (1), a main frame (2) and a sliding foot stand (3). The sliding pull rod (1) positioned at the upper end of the main frame (2) is movably connected with the main frame (2), the sliding foot stand (3) positioned at the lower end of the main frame (2) is movably connected with the main frame (2), the sliding pull rod (1) and the sliding foot stand (3) are positioned on the same plane of the main frame (2), and a main stop plate (30) movably connected with the main frame (2) is arranged at the lower end of another plane of the main frame (2). The foldable frame is characterized in that a fixed wheel carrier A (5) and a fixed wheel carrier B (29) are arranged at the lower end of the main frame (2), the fixed wheel carrier A (5) and the fixed wheel carrier B (29) are hinged with a movable wheel carrier A (10) and a movable wheel carrier B (28) respectively, positioning devices are arranged on the fixed wheel carrier A (5) and the fixed wheel carrier B (29), and a foldable shaft (11) is arranged between the movable wheel carrier A (10) and the movable wheel carrier B (28). The foldable frame has the advantages of simple structure, convenience in folding and high stability.

Description

Foldable frame

Technical field

The utility model relates to life traffic articles for use field, relates in particular to a kind of Foldable frame.

Background technology

Collapsible towing dolly is widely used in going on business in people's daily life, aspect tourism, shipping and the shopping, volume is big, uses inconvenience.In the prior art; China's utility model patent (20088001775.2) discloses a kind of collapsible vehicle trailer; Comprise framework and dilatory part; The wheel suspension arrangement makes wheel and suspension rotatable near shipping face on framework, between the wheel suspension, is provided with the one or more axles that are provided with the joint in the centre or towards each end of wheel.One or more bars are arranged between the dilatory part of pivotally attached and the axle, and bar is the centre of impeller-hub backward, and then wheel or take turns that suspension turns to the downside of framework and near framework.This mode can only fold and the location trailer based on vertical direction, and complex structure.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned shortcoming and the Foldable frame of a kind of simple in structure, folding convenient, good stability is provided.

The purpose of the utility model and solve its technical problem underlying and adopt following technical scheme to realize:

The Foldable frame of the utility model; Comprise sliding tie rod, main car frame, slip foot rest, master shield 0; Upper end and main car frame that sliding tie rod is positioned at main car frame flexibly connect, and lower end and main car frame that the slip foot rest is positioned at main car frame flexibly connect, and sliding tie rod and slip foot rest are positioned at the same plane of main car frame; Another lower end, plane of main car frame is provided with the master shield 0 of flexible connection; Wherein: the main car frame lower end is provided with fixedly wheel carrier A and fixedly wheel carrier B, fixedly wheel carrier A, fixedly wheel carrier B is hinged, which is provided with registration device with movable wheel carrier A, movable wheel carrier B respectively, is provided with collapsible axle between movable wheel carrier A and the movable wheel carrier B.

Said collapsible axle comprises main axle A, movable axis A, movable axis B, main axle B; This main axle A and main axle B are separately fixed on movable wheel carrier A and the movable wheel carrier B; The end of main axle A and main axle B is hinged with the end of movable axis A and movable axis B respectively; The movable axis A and the movable axis B other end are hinged with two ends, length of spring compressed storehouse respectively, are provided with the compression bin spring between movable axis A and the movable axis B in the length of spring compressed storehouse; Movable axis A and main axle A hinged place have skewed slot; Also be provided with blocking device on this collapsible axle.

Blocking device on the said collapsible axle comprises big sleeve A, locating sleeve A, locating sleeve B, big sleeve pipe B, pull back spring A, pull back spring B; This big sleeve A is set on main axle A and the main axle B with big sleeve pipe B; The one of which end is separately fixed on the main axle A and main axle B of movable wheel carrier A and movable wheel carrier B inboard; Pull back spring A and pull back spring B are positioned at big sleeve A and big sleeve pipe B; Locating sleeve A and locating sleeve B are positioned at big sleeve A and contact with pull back spring A and pull back spring B with big sleeve pipe B; Locating sleeve A is provided with draw-in groove A and matches with jump ring A on the big sleeve A, and locating sleeve B is provided with draw-in groove B and matches with jump ring B on the sleeve pipe B greatly.

Said locating sleeve A and locating sleeve B end are fixed with flange A and flange B respectively.

Said fixedly wheel carrier A and movable wheel carrier A are hinged and comprise: hinge A, axle sleeve A, axle sleeve B, axle sleeve C; Axle sleeve A and axle sleeve C are fixed on the two ends of movable wheel carrier A; Axle sleeve B is fixed on the fixedly middle part of wheel carrier A; Axle sleeve A, axle sleeve B, axle sleeve C are set on the hinge A in proper order, and its registration device is boss C and the boss D that cooperatively interacts on the boss A that cooperatively interacts on axle sleeve A and the axle sleeve B and boss B, axle sleeve B and the axle sleeve C.

Said master shield is provided with shifting board A and shifting board B.

The contiguous fixedly wheel carrier A in said main car frame two sides is provided with the catch A and the catch B of captiveing joint with fixing wheel carrier B place.

Said sliding tie rod and main car frame are through the flexible connection that cooperatively interacts of locating dowel pin and pin-and-hole.

Said movable footrest bottom is fixed with wheel fixed plate A and wheel adapter plate B.

Said main axle A, main axle B go up movable wheel carrier A and the movable wheel carrier B outside is fixed with back-up ring A and back-up ring B.

The utility model compared with prior art has tangible advantage and beneficial effect.Can know by above technical scheme; Be provided with collapsible axle between movable wheel carrier A and the movable wheel carrier B; Collapsible axle comprises main axle A, movable axis A, movable axis B, main axle B; This main axle A and main axle B are separately fixed on movable wheel carrier A and the movable wheel carrier B; The end of main axle A and main axle B is hinged with the end of movable axis A and movable axis B respectively, and the movable axis A and the movable axis B other end are hinged with two ends, length of spring compressed storehouse respectively, are provided with the compression bin spring between movable axis A and the movable axis B in the length of spring compressed storehouse; Movable axis A and main axle A hinged place have skewed slot; Also be provided with blocking device on this collapsible axle.Blocking device comprises big sleeve A, locating sleeve A, locating sleeve B, big sleeve pipe B, pull back spring A, pull back spring B; This big sleeve A is set on main axle A and the main axle B with big sleeve pipe B; The one of which end is separately fixed on the main axle A and main axle B of movable wheel carrier A and movable wheel carrier B inboard; Pull back spring A and pull back spring B are positioned at big sleeve A and big sleeve pipe B; Locating sleeve A and locating sleeve B are positioned on the pull back spring A and pull back spring B of big sleeve A and big sleeve pipe B, and locating sleeve A is provided with draw-in groove A and matches with jump ring A on the sleeve A greatly, and locating sleeve B is provided with draw-in groove B and matches with jump ring B on the sleeve pipe B greatly.Axle between the two-wheeled can conveniently be folded, and also be provided with blocking device on the collapsible axle, the stability of collapsible axle when having guaranteed to launch.The main car frame lower end is provided with fixedly wheel carrier A and fixedly wheel carrier B; Fixedly wheel carrier A, fixedly wheel carrier B is hinged with movable wheel carrier A, movable wheel carrier B respectively; Fixedly wheel carrier A and movable wheel carrier A are hinged and comprise: hinge A, axle sleeve A, axle sleeve B, axle sleeve C; Axle sleeve A and axle sleeve C are fixed on the two ends of movable wheel carrier A, and axle sleeve B is fixed on the fixedly middle part of wheel carrier A, and axle sleeve A, axle sleeve B, axle sleeve C are set on the hinge A in proper order; Its registration device is boss C and the boss D that cooperatively interacts on the boss A that cooperatively interacts on axle sleeve A and the axle sleeve B and boss B, axle sleeve B and the axle sleeve C, its fixedly wheel carrier B be hinged identical with it with movable wheel carrier B.Guaranteed movable A of wheel and activity wheel B folding convenient, and position relative fixed folding and that expansion is rotated, thereby the stability of assurance the utility model.In a word, the utility model axletree can fold, and good stability is easy to carry.

Description of drawings

Fig. 1 is the new structural representation of this practicality;

Fig. 2 launches scheme drawing for the utility model;

Fig. 3 is the collapsible axle construction scheme drawing of the utility model;

Fig. 4 is the structural representation of the utility model axle sleeve A, axle sleeve B, axle sleeve C;

Fig. 5 is the utility model running condition figure.

Mark among the figure:

1, sliding tie rod; 2, main car frame; 3, slip foot rest; 4, catch A; 5, fixing wheel carrier A; 6, hinge A; 7, axle sleeve A; 8, axle sleeve B; 9, axle sleeve C; 10, movable wheel carrier A; 11, collapsible axle; 12, main axle A; 13, back-up ring A; 14, big sleeve A; 15, jump ring A; 16, locating sleeve A; 17, flange A; 18, movable axis A; 19, skewed slot; 20, length of spring compressed storehouse; 21, movable axis B; 22, flange B; 23, locating sleeve B; 24, jump ring B; 25, big sleeve pipe B; 26, back-up ring B; 27, main axle B; 28, movable wheel carrier B; 29, fixing wheel carrier B; 30, master shield; 31, catch B; 32, shifting board A; 33, shifting board B; 34, locating dowel pin; 35, pin-and-hole; 36, draw-in groove A; 37, draw-in groove B; 38, wheel fixed plate A; 39, wheel adapter plate B; 40, pull back spring A; 41, compression bin spring; 42, pull back spring B; 43, boss A; 44, boss B; 45, boss C; 46, boss D; 47, wheel.

The specific embodiment:

Below in conjunction with accompanying drawing and preferred embodiment, to the Foldable frame specific embodiment, structure, characteristic and the effect thereof that proposes according to the utility model, specify as after.

Referring to Fig. 1 to Fig. 4; The Foldable frame of the utility model; Comprise sliding tie rod 1, main car frame 2, slip foot rest 3, master shield 30; Upper end and main car frame 2 that sliding tie rod 1 is positioned at main car frame 2 flexibly connect, and lower end and main car frame 2 that slip foot rest 3 is positioned at main car frame 2 flexibly connect, and sliding tie rod 1 and slip foot rest 3 are positioned at the same plane of main car frame 2; Another lower end, plane of main car frame 2 is provided with the master shield 30 of flexible connection; Wherein: main car frame 2 lower ends are provided with fixedly wheel carrier A5 and fixedly wheel carrier B29, fixedly wheel carrier A5, fixedly wheel carrier B29 is hinged, which is provided with registration device with movable wheel carrier A10, movable wheel carrier B28 respectively, is provided with collapsible axle 11 between movable wheel carrier A10 and the movable wheel carrier B28.

Said collapsible axle 11 comprises main axle A12, movable axis A18, movable axis B21, main axle B27; This main axle A12 and main axle B27 are separately fixed on movable wheel carrier A10 and the movable wheel carrier B28; The end of main axle A12 and main axle B27 is hinged with the end of movable axis A18 and movable axis B21 respectively; The movable axis A18 and the movable axis B21 other end are hinged with 20 two ends, length of spring compressed storehouse respectively, are provided with compression bin spring 41 between movable axis A18 and the movable axis B21 in the length of spring compressed storehouse 20; Movable axis A18 and main axle A12 hinged place have skewed slot 19; Also be provided with blocking device on this collapsible axle 11.

Blocking device on the said collapsible axle 11 comprises big sleeve A 14, locating sleeve A16, locating sleeve B23, big sleeve pipe B25, pull back spring A40, pull back spring B42; This big sleeve A 14 is set on main axle A12 and the main axle B27 with big sleeve pipe B25; The one of which end is separately fixed on the main axle A12 and main axle B27 of movable wheel carrier A10 and movable wheel carrier B28 inboard; Pull back spring A40 and pull back spring B42 are positioned at big sleeve A 14 and big sleeve pipe B25; Locating sleeve A16 and locating sleeve B23 are positioned at big sleeve A 14 and contact with pull back spring A40 and pull back spring B42 with big sleeve pipe B25; Locating sleeve A16 is provided with draw-in groove A36 and matches with jump ring A15 on the big sleeve A 14, and locating sleeve B23 is provided with draw-in groove B37 and matches with jump ring B24 on the sleeve pipe B25 greatly.

Said locating sleeve A16 and locating sleeve B23 end are fixed with flange A17 and flange B22 respectively.

Said fixedly wheel carrier A5 and movable wheel carrier A10 are hinged and comprise: hinge A6, axle sleeve A7, axle sleeve B8, axle sleeve C9; Axle sleeve A7 and axle sleeve C9 are fixed on the two ends of movable wheel carrier A10; Axle sleeve B8 is fixed on the fixedly middle part of wheel carrier A5; Axle sleeve A7, axle sleeve B8, axle sleeve C9 are set on the hinge A6 in proper order, and its registration device is boss C45 and the boss D46 that cooperatively interacts on the boss A43 that cooperatively interacts on axle sleeve A7 and the axle sleeve B8 and boss B44, axle sleeve B8 and the axle sleeve C9.

Said master shield 30 is provided with shifting board A32 and shifting board B33.

The contiguous fixedly wheel carrier A5 in said main car frame 2 two sides is provided with the catch A4 and the catch B31 of captiveing joint with fixing wheel carrier B29 place.

Said sliding tie rod 1 and the cooperatively interact flexible connection of main car frame 2 through locating dowel pin 34 and pin-and-hole 35.

Said movable footrest 3 bottoms are fixed with wheel fixed plate A 38 and wheel adapter plate B39.

Said main axle A12, main axle B27 go up movable wheel carrier A10 and the movable wheel carrier B28 outside is fixed with back-up ring A13 and back-up ring B26.

During use,, on main axle A12 and main axle B27, load onto five respectively and take turns or three-wheel climbing wheel 47, on the fixing wheel fixed plate A 38 in movable footrest 3 bottoms and wheel adapter plate B39, adorn cardan wheel with reference to Fig. 5.Since five take turns or three-wheel climbing wheel 47 diameters bigger than general wheel; For easy to carry collapsible axle 11 is folded; Earlier that the main axle A12 on the collapsible axle 11 is folding in main car frame 2 along the skewed slot 19 on the movable axis A18 when folding; Driving main axle B27 through length of spring compressed storehouse 20 with movable axis B21 simultaneously folds in main car frame 2; Movable wheel carrier A10 and movable wheel carrier B28 also inwardly rotate simultaneously; Its folding position of rotating and launching to rotate is through fixing wheel carrier A5, fixedly wheel carrier B29 controls with the registration device that movable wheel carrier A10, movable wheel carrier B28 are hinged respectively, and fixedly wheel carrier A5 and movable wheel carrier A10 are hinged and comprise: hinge A6, axle sleeve A7, axle sleeve B8, axle sleeve C9, and axle sleeve A7 and axle sleeve C9 are fixed on the two ends of movable wheel carrier A10; Axle sleeve B8 is fixed on the fixedly middle part of wheel carrier A5; Axle sleeve A7, axle sleeve B8, axle sleeve C9 are set on the hinge A6 in proper order, and its registration device is boss C45 and the boss D46 that cooperatively interacts on the boss A43 that cooperatively interacts on axle sleeve A7 and the axle sleeve B and boss B44, axle sleeve B and the axle sleeve C, its fixedly wheel carrier B29 be hinged identical with it with movable wheel carrier B28.Before folding shaft 11 folds, also need earlier shifting board A32 on sliding tie rod 1, slip foot rest 3, master shield 30 and the master shield 30 and shifting board B33 are packed up.During the haul goods; Earlier main axle B27 is launched; Again main axle A12 is launched; Compression bin spring 41 power that collapsible axle 11 receives in the length of spring compressed storehouse 20 are simultaneously launched collapsible axle 11, then the locating sleeve A16 in the blocking device on the collapsible axle 11, locating sleeve B23 are pulled out the collapsible axle 11 that locking launches through flange A17 on it and flange B22 rotation; Locating sleeve A16, locating sleeve B23 match with jump ring A15, jump ring B24 through the draw-in groove A36 on it, draw-in groove B37 and are fixed in big sleeve A 14 and the big sleeve pipe B25 when folding, at last shifting board A32 on sliding tie rod 1, slip foot rest 3, master shield 30 and the master shield 30 and shifting board B33 are launched.In addition, shifting board A32 on the master shield 30 and shifting board B33 launch to increase the area of bearing goods.The flexible connection of sliding tie rod 1 and main car frame 2 is through the realization that cooperatively interacts of locating dowel pin 34 and pin-and-hole 35, and slip foot rest 3 also adopts same movable connection method with main car frame 2.

The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Any the utility model technical scheme content that do not break away from, all still belongs in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did according to the technical spirit of the utility model.

Claims

1. Foldable frame; Comprise sliding tie rod (1), main car frame (2), slip foot rest (3), master shield (30); Upper end and main car frame (2) that sliding tie rod (1) is positioned at main car frame (2) flexibly connect; Lower end and main car frame (2) that slip foot rest (3) is positioned at main car frame (2) flexibly connect; Sliding tie rod (1) and slip foot rest (3) are positioned at the same plane of main car frame (2); Another lower end, plane of main car frame (2) is provided with the master shield (30) of flexible connection; It is characterized in that: main car frame (2) lower end is provided with fixedly wheel carrier A (5) and fixedly wheel carrier B (29), fixedly wheel carrier A (5), fixedly wheel carrier B (29) is hinged, which is provided with registration device with movable wheel carrier A (10), movable wheel carrier B (28) respectively, is provided with collapsible axle (11) between movable wheel carrier A (10) and the movable wheel carrier B (28).

2. Foldable frame as claimed in claim 1; It is characterized in that: said collapsible axle (11) comprises main axle A (12), movable axis A (18), movable axis B (21), main axle B (27); This main axle A (12) and main axle B (27) are separately fixed on movable wheel carrier A (10) and the movable wheel carrier B (28); The end of main axle A (12) and main axle B (27) is hinged with the end of movable axis A (18) and movable axis B (21) respectively; The movable axis A (18) and movable axis B (21) other end are hinged with two ends, length of spring compressed storehouse (20) respectively, are provided with compression bin spring (41) between length of spring compressed storehouse (20) interior movable axis A (18) and the movable axis B (21); Movable axis A (18) has skewed slot (19) with main axle A (12) hinged place; Also be provided with blocking device on this collapsible axle (11).

3. Foldable frame as claimed in claim 2; It is characterized in that: the blocking device on the said collapsible axle (11) comprises big sleeve A (14), locating sleeve A (16), locating sleeve B (23), big sleeve pipe B (25), pull back spring A (40), pull back spring B (42); This big sleeve A (14) and big sleeve pipe B (25) are set on main axle A (12) and the main axle B (27); The one of which end is separately fixed on the main axle A (12) and main axle B (27) of movable wheel carrier A (10) and movable wheel carrier B (28) inboard; Pull back spring A (40) and pull back spring B (42) are positioned at big sleeve A (14) and big sleeve pipe B (25); Locating sleeve A (16) and locating sleeve B (23) are positioned at big sleeve A (14) and big sleeve pipe B (25) contacts with pull back spring A (40) and pull back spring B (42) respectively; Locating sleeve A (16) is provided with draw-in groove A (36) and matches with jump ring A (15) on the big sleeve A (14), and locating sleeve B (23) is provided with draw-in groove B (37) and matches with jump ring B (24) on the sleeve pipe B (25) greatly.

4. Foldable frame as claimed in claim 3 is characterized in that: said locating sleeve A (16) and locating sleeve B (23) end are fixed with flange A (17) and flange B (22) respectively.

5. Foldable frame as claimed in claim 1; It is characterized in that: said fixedly wheel carrier A (5) is hinged with movable wheel carrier A (10) and comprises: hinge A (6), axle sleeve A (7), axle sleeve B (8), axle sleeve C (9); Axle sleeve A (7) and axle sleeve C (9) are fixed on the two ends of movable wheel carrier A (10); Axle sleeve B (8) is fixed on the fixedly middle part of wheel carrier A (5); Axle sleeve A (7), axle sleeve B (8), axle sleeve C (9) order are set on the hinge A (6), and its registration device is boss C (45) and the boss D (46) that cooperatively interacts on the boss A (43) that cooperatively interacts on axle sleeve A (7) and the axle sleeve B (8) and boss B (44), axle sleeve B (8) and the axle sleeve C (9).

6. like each described Foldable frame in the claim 1 to 5, it is characterized in that: said main axle A (12), main axle B (27) go up movable wheel carrier A (10) and movable wheel carrier B (28) outside is fixed with back-up ring A (13) and back-up ring B (26).

7. like each described Foldable frame in the claim 1 to 5, it is characterized in that: said master shield (30) is provided with shifting board A (32) and shifting board B (33).

8. like each described Foldable frame in the claim 1 to 5, it is characterized in that: the contiguous fixedly wheel carrier A (5) in said main car frame (2) two sides locates to be provided with the catch A (4) and the catch B (31) of captiveing joint with fixing wheel carrier B (29).

9. like each described Foldable frame in the claim 1 to 5, it is characterized in that: said sliding tie rod (1) and the cooperatively interact flexible connection of main car frame (2) through locating dowel pin (34) and pin-and-hole (35).

10. like each described Foldable frame in the claim 1 to 5, it is characterized in that: said movable footrest (3) bottom is fixed with wheel fixed plate A (38) and wheel adapter plate B (39).