CN103407473A - Four-wheel foldable trailer - Google Patents

Four-wheel foldable trailer Download PDF

Info

Publication number
CN103407473A
CN103407473A CN2013103802230A CN201310380223A CN103407473A CN 103407473 A CN103407473 A CN 103407473A CN 2013103802230 A CN2013103802230 A CN 2013103802230A CN 201310380223 A CN201310380223 A CN 201310380223A CN 103407473 A CN103407473 A CN 103407473A
Authority
CN
China
Prior art keywords
luggage carrier
wheel
vehicle frame
assembly
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013103802230A
Other languages
Chinese (zh)
Other versions
CN103407473B (en
Inventor
胡妍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU DUKE NEW ENERGY AUTOMOBILE CO., LTD.
Original Assignee
SUZHOU BILONG DECORATION ENGINEERING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201610327883.6A priority Critical patent/CN105946925A/en
Priority to CN201610327185.6A priority patent/CN105946924A/en
Priority to CN201610330049.2A priority patent/CN106114569A/en
Priority to CN201610327136.2A priority patent/CN105946921A/en
Application filed by SUZHOU BILONG DECORATION ENGINEERING Co Ltd filed Critical SUZHOU BILONG DECORATION ENGINEERING Co Ltd
Priority to CN201610329601.6A priority patent/CN106114568A/en
Priority to CN201610329097.XA priority patent/CN105882706A/en
Priority to CN201310380223.0A priority patent/CN103407473B/en
Priority to CN201610329048.6A priority patent/CN105882705A/en
Priority to CN201610327154.0A priority patent/CN105946923A/en
Priority to CN201610327149.XA priority patent/CN105946922A/en
Publication of CN103407473A publication Critical patent/CN103407473A/en
Application granted granted Critical
Publication of CN103407473B publication Critical patent/CN103407473B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
    • B62B3/022—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible folding down the body to the wheel carriage or by retracting projecting parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/006—Hand-propelled vehicles or sledges being foldable or dismountable when not in use dismountable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/02—Hand-propelled vehicles or sledges being foldable or dismountable when not in use foldable widthwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/12—Collapsible wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/30—Detachable, retractable or collapsible load supporting means
    • B62B2205/32—Shelves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

The invention discloses a four-wheel foldable trailer. The four-wheel foldable trailer comprises a front rack component, a rear rack component and coupling mechanisms, wherein the front rack component comprises a front luggage carrier, a front wheel component, a front baffle and a pull rod; the rear rack component comprises a rear luggage carrier, a rear wheel component, a rear baffle and a connecting member; each coupling mechanism comprises two front coupling rods, positioning wheels, two rear coupling rods, a coupling convex plate, a shaft lever, annular blocking platforms, a threaded spring and an attachment bolt component; two arc-shaped positioning nicks in central symmetry are formed in the edge of each positioning wheel; each annular blocking platform is embedded or moved out of one corresponding positioning nick during the process of doing reciprocating motion along with the shaft lever; the front rack component and the rear rack component can be overlapped after rotating for 180 degrees around the attachment bolt component. The four-wheel foldable trailer is foldable and is convenient to carry.

Description

The four-wheel folding trailer
Technical field
The present invention relates to the trailer technical field, relate in particular to a kind of four-wheel folding trailer.
Background technology
People often use four-wheel trailer when shopping carrying article, can save strength for the user, but the four-wheel trailer volume is generally larger at present, can not fold gathering, carries inconvenience, while depositing, takes up room also very large.
Patent documentation CN202186404U discloses a kind of foldable luggage trolley, this car comprises telescopic vehicle frame, its underpart is provided with the cylindrical pull bar be hinged with the baggage car weight tray, described cylindrical pull bar top is provided with the first circular groove, and the first circular groove lower surface is provided with the first spiral-guide face; The folding rear and vehicle frame laminating of weight tray, it launches rear arrange vertical with vehicle frame, be used to carrying luggage; Weight tray is connected a side and is provided with the vertical Stroke Control part of the wheel be fixedly connected with described weight tray with vehicle frame; Wheel stand has the second circular groove with the adaptive socket of described cylindrical pull bar, and the second circular groove upper surface is provided with the second spiral-guide face suitable with described the first spiral-guide face, the rotary torsion spring of fixedly taking a seat in the second circular groove; Pull bar vertically is arranged in the second circular groove, and the shaft hole sleeve of pull bar bottom is connected in the axle of the vertical Stroke Control part of wheel; When weight tray launches, the vertical formation control spare of described wheel forms pushing tow to the second circular groove, on guiding wheel under the combined action of described the first spiral-guide face and the second spiral-guide face is vertical, moves and launch to the both sides outward turning, when weight tray folded, wheel inward turning under the effect of described rotary torsion spring reclaimed and vertically moves down simultaneously; Vehicle wheel after folding is along edge at the bottom of the weight tray protruded from after folding.
This patent documentation is described detailed mechanism and the principle of work of collapsible wheel in detail, but this kind foldable luggage trolley is owing to being the push-and-pull vehicle that only has two-wheeled, and the carrying dynamics is less, can not be widely used in factory floor and use.
Summary of the invention
The purpose of this invention is to provide a kind of can folding, thus portable four-wheel folding trailer.
The technical scheme that realizes the object of the invention is: a kind of four-wheel folding trailer comprises front vehicle frame assembly, rear chassis assembly and be used to connecting the coupling mechanism of front vehicle frame assembly and rear chassis assembly, the front vehicle frame assembly comprises front luggage carrier, two front wheel assemblies, is arranged on the front apron of front luggage carrier front end and is arranged on the pull bar on front apron, rear chassis assembly comprises rear luggage carrier, two rear wheel assemblies, be arranged on the back shield of rear luggage carrier rear end be used to being connected two attaching partss of back shield and rear luggage carrier, coupling mechanism comprises two front pitmans of the left and right sides end that is arranged on front luggage carrier rear end, be fixedly installed on the locating wheel on each front pitman, be arranged on pitman after two of left and right sides end of rear luggage carrier front end, be fixedly installed on the connection flange on each rear pitman, the axostylus axostyle that runs through two rear pitmans and can move back and forth along left and right directions, be fixedly installed on two annular gear platforms on axostylus axostyle, be used to axostylus axostyle that the screw thread spring of reseting elasticity is provided, and be used to being rotationally connected the attachment bolt assembly of each rear pitman and a corresponding locating wheel, the edge of each locating wheel is provided with two arc shaped locating notches that are centrosymmetric, and each annular gear platform, in the process moved back and forth along with axostylus axostyle, embeds or shifts out in a corresponding locating notch, described front vehicle frame assembly and rear chassis assembly can be superimposed after the attachment bolt assembly rotates 180 degree.
In such scheme, after front vehicle frame assembly and rear chassis assembly were superimposed, the basal surface of front luggage carrier was in abutting connection with the basal surface setting of rear luggage carrier.
In such scheme, front apron is in abutting connection with the upper surface setting of front luggage carrier, and back shield is in abutting connection with the upper surface setting of rear luggage carrier.
The present invention in use, can launch front vehicle frame assembly and rear chassis assembly to use, and when depositing, can be folded to closed state to front vehicle frame assembly and rear chassis assembly, dwindles floor area, has advantages of easy to carry and store; In addition, the present invention, after folding and expansion, can rely on the elastic force of screw thread spring, drive axostylus axostyle and annular gear platform automatically reset, embed on locating wheel in a corresponding locating notch, thereby locking front vehicle frame assembly and rear chassis assembly have use advantage comparatively easily.
The accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention while being in deployed condition;
Fig. 2 is a kind of perspective view of front vehicle frame assembly in trailer shown in Figure 1;
A kind of perspective view of Fig. 3 when to be front vehicle frame assembly shown in Figure 2 observe from another angle;
Fig. 4 is a kind of lateral plan of front vehicle frame assembly shown in Figure 2;
Fig. 5 is a kind of lateral plan of front apron in the assembly of front vehicle frame shown in 2;
Fig. 6 is a kind of exploded view of front vehicle frame assembly shown in Figure 2;
Fig. 7 is a kind of exploded view of front vehicle frame assembly shown in Figure 3;
Fig. 8 is a kind of perspective view of rear chassis assembly in trailer shown in Figure 1;
A kind of perspective view of Fig. 9 when to be rear chassis assembly shown in Figure 8 observe from another angle;
Figure 10 is a kind of lateral plan of rear chassis assembly shown in Figure 8;
Figure 11 is a kind of exploded view of rear chassis assembly shown in Figure 8;
Figure 12 is a kind of exploded view of rear chassis assembly shown in Figure 9;
Figure 13 is a kind of perspective view of the present invention while being in flat;
Figure 14 is a kind of perspective view of back shield in trailer shown in Figure 13;
Figure 15 is a kind of perspective view of the present invention while being in preliminary folded state;
Figure 16 is a kind of exploded view of back shield and attaching parts in Figure 15;
Figure 17 is a kind of lateral plan of trailer shown in Figure 15;
Figure 18 is a kind of structural representation of coupling mechanism in the present invention;
Figure 19 is a kind of perspective view of the present invention while being in complete folded state;
Figure 20 is a kind of lateral plan of trailer shown in Figure 19.
Shown in accompanying drawing, be labeled as: front vehicle frame assembly 1, front luggage carrier 11, front sliding column 111, front limit gear platform 112, front limit teeth groove 113, front pin-and-hole 114, front wheel assemblies 12, anterior cannula 121, front wheel carrier 122, front torsion spring 123, front vehicle wheel 124, front limit double wedge 125, front apron 13, front connection boss 131, front-axle hole 132, front gathering bearing surface 133, front expansion bearing surface 134, front arc transition face 135, rotating junction 136, clamp 137, pull bar 14, rear chassis assembly 2, rear luggage carrier 21, rear traveller 211, rear limiting block platform 212, rear spacing teeth groove 213, rear pin-and-hole 214, rear wheel assemblies 22, rear sleeve 221, rear wheel frame 222, rear torsion spring 223, rear wheel 224, rear spacing double wedge 225, back shield 23, rear connection boss 231, rear axis hole 232, load flange 233, attaching parts 24, the first pivoted hole 241, rear gathering bearing surface 242, rear expansion bearing surface 243, rear arc transition face 244, the second pivoted hole 245, draw bearing area 246 in, launch bearing area 247, coupling mechanism 3, front pitman 31, locating wheel 32, locating notch 321, rear pitman 33, connect flange 34, axostylus axostyle 35, annular gear platform 36, screw thread spring 37, attachment bolt assembly 38, bearing pin 100.
The specific embodiment
(embodiment 1)
The present embodiment is a kind of four-wheel folding trailer, comprises front vehicle frame assembly 1, rear chassis assembly 2 and the coupling mechanism 3 be used to connecting front vehicle frame assembly and rear chassis assembly.
Concrete structure when the present embodiment is in deployed condition is shown in Fig. 1 to Figure 12, and described front vehicle frame assembly comprises front luggage carrier 11, two front wheel assemblies 12, is arranged on the front apron 13 of front luggage carrier front end and is arranged on the pull bar 14 on front apron; The left and right sides end of front luggage carrier front end respectively is provided with a front sliding column 111 of giving prominence to forward, and each front sliding column is provided with annular front limit gear platform 112, and the front end of each front limit gear platform is provided with a plurality of front limit teeth groove 113; The front end of each front sliding column is provided with front pin-and-hole 114; Each front wheel assemblies comprises that front wheel carrier 122, front torsion spring 123 and rotation with anterior cannula 121 are arranged on the front vehicle wheel 124 on front wheel carrier; The rear end of each anterior cannula is provided with the front limit double wedge 125 matched with each front limit teeth groove; Anterior cannula is set on a corresponding front sliding column, and front torsion spring set is located on corresponding front sliding column, and within being positioned at anterior cannula; Before front apron is provided with two, connect boss 131, before each, connect boss and be provided with front-axle hole 132, front gathering bearing surface 133, front expansion bearing surface 134 and connect the front front arc transition face 135 that draws bearing surface and front expansion bearing surface in; As shown in Figure 5, the central axis of front-axle hole and front expansion bearing surface is greater than the distance b of this central axis and front gathering bearing surface apart from a; Before each, connecting boss is rotationally connected with front sliding column by the bearing pin 100 that passes front-axle hole and a corresponding front pin-and-hole; Before each, launch bearing surface and be parallel to plane, front apron place, each draws bearing surface in perpendicular to plane, front apron place.
Rear chassis assembly comprises rear luggage carrier 21, two rear wheel assemblies 22, be arranged on the back shield 23 of rear luggage carrier rear end be used to being connected two attaching partss 24 of back shield and rear luggage carrier.
The left and right sides end of rear luggage carrier rear end respectively is provided with a rearwardly projecting rear traveller 211, and after each, traveller is provided with the rear limiting block platform 212 of annular, and after each, rear end of limiting block platform is provided with a plurality of rear spacing teeth groove 213; After each, rear end of traveller is provided with rear pin-and-hole 214;
The front end of each attaching parts is provided with the first pivoted hole 241, rear gathering bearing surface 242, rear expansion bearing surface 243 and connects the rear rear arc transition face 244 that draws bearing surface and rear expansion bearing surface in; After each attaching parts and corresponding one, traveller is rotationally connected by the bearing pin 100 that passes the first pivoted hole and rear pin-and-hole 214, and the distance of the central axis of the first pivoted hole and rear expansion bearing surface is greater than the distance of this central axis and rear gathering bearing surface; After each, launch bearing surface and be parallel to plane, back shield place, after each, draw bearing surface in perpendicular to plane, back shield place; The rear end of each attaching parts is provided with for the second pivoted hole 245 be rotationally connected with back shield, draws bearing area 246 in and launch bearing area 247, draw bearing area in and be positioned at the side of the second pivoted hole away from the first pivoted hole, launch bearing area and be positioned at the side of the second pivoted hole near the first pivoted hole; Each rear wheel assemblies comprises that rear wheel frame 222, rear torsion spring 223 and rotation with rear sleeve 221 are arranged on the rear wheel 224 on rear wheel frame; The front end of each rear sleeve is provided with the rear spacing double wedge 225 matched with spacing teeth groove after each; After rear sleeve was set in corresponding one, on traveller, rear torsion spring set was located on corresponding rear traveller, and within being positioned at rear sleeve; Back shield connects boss 231 after being provided with two, connect that boss is provided with rear axis hole 232 after each and along the load flange 233 of rear luggage carrier horizontal direction evagination; After each, connection boss and a corresponding attaching parts are rotationally connected by the bearing pin 100 that passes rear axis hole and the second pivoted hole; The load flange along with rear connection boss in the process that the second pivoted hole rotates, can be connected to the gathering bearing area of attaching parts and launch on bearing area, and then driving attaching parts and rotate.
As shown in Figure 18, in the present embodiment, coupling mechanism 3 comprises two front pitmans 31 of the left and right sides end that is arranged on front luggage carrier rear end, be fixedly installed on the locating wheel 32 on each front pitman, be arranged on pitman 33 after two of left and right sides end of rear luggage carrier front end, be fixedly installed on the connection flange 34 on each rear pitman, the axostylus axostyle 35 that runs through two rear pitmans and can move back and forth along left and right directions, be fixedly installed on two annular gear platforms 36 on axostylus axostyle, be used to axostylus axostyle that the screw thread spring 37 of reseting elasticity is provided, and be used to being rotationally connected the attachment bolt assembly 38 of each rear pitman and a corresponding locating wheel, the edge of each locating wheel is provided with two arc shaped locating notches 321 that are centrosymmetric, and each annular gear platform, in the process moved back and forth along with axostylus axostyle, embeds or shifts out in a corresponding locating notch, described front vehicle frame assembly and rear chassis assembly can be superimposed after attachment bolt assembly 38 rotates 180 degree.
In the present embodiment, an end that connects boss before front apron approaches is provided with the rotating junction 136 with pin-and-hole, and front apron is provided with two clamps 137 of protrusion away from an end of front connection boss; The bottom of pull bar and the rotating junction of front apron are rotationally connected, but the middle part clamping connection of pull bar is between two clamps.In concrete practice, also can be fixedly installed on pull bar on front apron.
When the present embodiment is in deployed condition, see that Fig. 1 is to shown in Figure 12, the upper surface of front luggage carrier and rear luggage carrier is in same plane, and front luggage carrier and rear luggage carrier connect by coupling mechanism, and in the locating notch that locating wheel embeds corresponding locating wheel, both is locked.Now in the front vehicle frame assembly, front apron is perpendicular to front luggage carrier, front expansion bearing surface 131 on front limit gear platform is parallel to plane, front apron place, and be connected on the front end face of anterior cannula 121, simultaneously also make each front limit double wedge of anterior cannula rear end be embedded in corresponding front limit teeth groove, thereby the front limit teeth groove has the restriction rotating effect to anterior cannula, make now front vehicle wheel perpendicular to plane, front luggage carrier place, can roll to realize normally towing.In rear chassis assembly, back shield is perpendicular to plane, rear luggage carrier place, and the load flange 233 that connects afterwards boss is connected on the gathering bearing area 246 of attaching parts, and this draws bearing area under this state, can prevent that back shield from continuing to rotate forward; Rear expansion bearing surface 243 in each attaching parts is parallel to plane, back shield place, and be connected on the aft end face of corresponding rear sleeve, make each rear spacing double wedge of rear sleeve front end be embedded in rear spacing teeth groove, thereby rear spacing teeth groove has the restriction rotating effect to rear sleeve, make now rear wheel perpendicular to plane, rear luggage carrier place, can roll to realize normally towing.
The present embodiment is in the concrete structure of flat and sees that Figure 13 is to shown in Figure 14, under deployed condition shown in Figure 1, external force promotes back shield and rotates backward around rear axis hole, until load flange 233 is connected on the expansion bearing area 247 of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane, under the position-limiting action of the expansion bearing area 247 of attaching parts, can prevent that back shield from continuing to rotate backward; This structure can also be used back shield as support board, effectively increase the loaded area of trailer.
The present embodiment is in the concrete structure of preliminary folded state and sees that Figure 15 is to shown in Figure 17, under deployed condition shown in Figure 1, external force promotes forward back shield, due to the load flange 233 on back shield, be connected on the gathering bearing area 246 of attaching parts, thereby driving attaching parts rotates forward around the first pivoted hole 241, until draw afterwards bearing surface 242 in perpendicular to plane, rear luggage carrier place and be connected on the aft end face of rear sleeve, due to the distance of the central axis of the first pivoted hole and rear expansion bearing surface, be greater than the distance of this central axis and rear gathering bearing surface, make rear sleeve in the rotation process of attaching parts, can be under the elastic force effect of rear torsion spring 223, slippage certain distance backward, make rear spacing double wedge spacing teeth groove, shift out after corresponding, because rear spacing teeth groove no longer has the restriction rotating effect to rear sleeve, so rear sleeve can be under the twisting force of rear torsion spring, drive after rear wheel frame 222 and rear wheel 224 turn an angle and be connected on the basal surface of rear luggage carrier.In addition, under deployed condition shown in Figure 1, external force promotes front apron backward, before driving, connecting boss 131 rotates backward around front-axle hole 132, until front gathering bearing surface 133 is connected on the front end face of anterior cannula, due to the central axis of front-axle hole and front expansion bearing surface, be greater than the distance b of this central axis and front gathering bearing surface apart from a, so in the process that rotates backward of back shield, anterior cannula is the slippage certain distance forward, make the front limit double wedge from corresponding front limit teeth groove, shifting out, because the front limit teeth groove does not have the restriction rotating effect to anterior cannula, so anterior cannula can be under the twisting force of front torsion spring, drive front wheel carrier and front vehicle wheel turn an angle and can be connected on the basal surface of front luggage carrier.
The present embodiment is in the concrete structure of complete folded state and sees that Figure 19 is to shown in Figure 20, under preliminary folded state shown in Figure 15, press axostylus axostyle 35, make axostylus axostyle overcome the reseting elasticity of screw thread spring 37 and move a certain distance, make the annular gear platform be fixed on axostylus axostyle from a corresponding locating notch 321, shifting out, thereby can folding carrier and rear luggage carrier, when front luggage carrier or rear luggage carrier being rotated to 180 degree while making both superimposed, also namely make the basal surface of front vehicle frame assembly after the basal surface of rear chassis assembly, unclamp axostylus axostyle, axostylus axostyle moves and resets under the reseting elasticity of screw thread spring 37, make annular gear platform again embed in corresponding another locating notch 321, lock front luggage carrier and rear luggage carrier, make both can oneself not separate.
In addition, the present embodiment also has a characteristic, and exactly after attachment bolt assembly 38 is pulled down, front vehicle frame assembly and rear chassis assembly all can independently become the two-wheeled folding trailer; For the front vehicle frame assembly, pull bar continues as towing holding rod, and front luggage carrier continues as luggage carrier; But for rear chassis assembly, be after axostylus axostyle in chassis assembly as towing holding rod, back shield is as support board.
Obviously, the above embodiment of the present invention is only for example of the present invention clearly is described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.

Claims (3)

1. a four-wheel folding trailer, comprise front vehicle frame assembly (1), rear chassis assembly (2) and the coupling mechanism (3) be used to connecting front vehicle frame assembly and rear chassis assembly, it is characterized in that: the front vehicle frame assembly comprises front luggage carrier (11), two front wheel assemblies (12), is arranged on the front apron (13) of front luggage carrier front end and is arranged on the pull bar (14) on front apron, rear chassis assembly comprises rear luggage carrier (21), two rear wheel assemblies (22), be arranged on the back shield (23) of rear luggage carrier rear end be used to being connected two attaching partss (24) of back shield and rear luggage carrier, coupling mechanism (3) comprises two front pitmans (31) of the left and right sides end that is arranged on front luggage carrier rear end, be fixedly installed on the locating wheel (32) on each front pitman, be arranged on pitman (33) after two of left and right sides end of rear luggage carrier front end, be fixedly installed on the connection flange (34) on each rear pitman, the axostylus axostyle (35) that runs through two rear pitmans and can move back and forth along left and right directions, be fixedly installed on two annular gear platforms (36) on axostylus axostyle, be used to axostylus axostyle that the screw thread spring (37) of reseting elasticity is provided, and be used to being rotationally connected the attachment bolt assembly (38) of each rear pitman and a corresponding locating wheel, the edge of each locating wheel is provided with two the arc shaped locating notches (321) that are centrosymmetric, and each annular gear platform, in the process moved back and forth along with axostylus axostyle, embeds or shifts out in a corresponding locating notch, described front vehicle frame assembly and rear chassis assembly can be superimposed after attachment bolt assembly (38) rotates 180 degree.
2. four-wheel folding trailer according to claim 1 is characterized in that: after front vehicle frame assembly and rear chassis assembly were superimposed, the basal surface of front luggage carrier was in abutting connection with the basal surface setting of rear luggage carrier.
3. four-wheel folding trailer according to claim 2, is characterized in that: the upper surface setting of the front luggage carrier of front apron adjacency, the upper surface setting of the rear luggage carrier of back shield adjacency.
CN201310380223.0A 2013-08-27 2013-08-27 Four-wheel foldable trailer Active CN103407473B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CN201610330049.2A CN106114569A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer
CN201610327136.2A CN105946921A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329048.6A CN105882705A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer
CN201610329601.6A CN106114568A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer
CN201610327185.6A CN105946924A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201310380223.0A CN103407473B (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer
CN201610327883.6A CN105946925A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327154.0A CN105946923A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327149.XA CN105946922A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329097.XA CN105882706A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310380223.0A CN103407473B (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer

Related Child Applications (9)

Application Number Title Priority Date Filing Date
CN201610327154.0A Division CN105946923A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329097.XA Division CN105882706A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer
CN201610327185.6A Division CN105946924A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327883.6A Division CN105946925A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327149.XA Division CN105946922A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329048.6A Division CN105882705A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer
CN201610330049.2A Division CN106114569A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer
CN201610327136.2A Division CN105946921A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329601.6A Division CN106114568A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer

Publications (2)

Publication Number Publication Date
CN103407473A true CN103407473A (en) 2013-11-27
CN103407473B CN103407473B (en) 2016-06-22

Family

ID=49600537

Family Applications (10)

Application Number Title Priority Date Filing Date
CN201610330049.2A Withdrawn CN106114569A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer
CN201610329097.XA Pending CN105882706A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer
CN201310380223.0A Active CN103407473B (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer
CN201610327149.XA Withdrawn CN105946922A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327154.0A Withdrawn CN105946923A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327883.6A Withdrawn CN105946925A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329601.6A Withdrawn CN106114568A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer
CN201610327185.6A Withdrawn CN105946924A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327136.2A Withdrawn CN105946921A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329048.6A Withdrawn CN105882705A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CN201610330049.2A Withdrawn CN106114569A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer
CN201610329097.XA Pending CN105882706A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer

Family Applications After (7)

Application Number Title Priority Date Filing Date
CN201610327149.XA Withdrawn CN105946922A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327154.0A Withdrawn CN105946923A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327883.6A Withdrawn CN105946925A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329601.6A Withdrawn CN106114568A (en) 2013-08-27 2013-08-27 A kind of Four-wheel foldable trailer
CN201610327185.6A Withdrawn CN105946924A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610327136.2A Withdrawn CN105946921A (en) 2013-08-27 2013-08-27 Four-wheel folding trailer
CN201610329048.6A Withdrawn CN105882705A (en) 2013-08-27 2013-08-27 Four-wheel foldable trailer

Country Status (1)

Country Link
CN (10) CN106114569A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106364535A (en) * 2016-08-24 2017-02-01 李传慧 Novel folding object bearing device for farmers
CN109823381A (en) * 2019-01-15 2019-05-31 陈其坚 A kind of logistics transportation cart of installation easy to disassemble
CN109969237A (en) * 2017-12-28 2019-07-05 东莞市全乐电动科技有限公司 A kind of semi-automatic portable four-wheel linkage folding trailer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108248655B (en) * 2018-03-02 2020-07-31 浙江年代建设工程有限公司 Foldable dull and stereotyped shock attenuation handcart
CN109062318B (en) * 2018-07-09 2020-06-02 东莞恒耀日用制品有限公司 Handle capable of being adjusted at multiple angles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87206269U (en) * 1987-04-10 1988-03-30 武汉工学院工厂 Universal foldable sleeping cart
US4802681A (en) * 1987-12-17 1989-02-07 Hung Tung Ping Wheelbarrow
CN2055465U (en) * 1989-04-26 1990-04-04 韦秋成 Multifunction folding trolley
CN2117305U (en) * 1992-02-12 1992-09-30 林旗峰 Multifunctional folding trolley
FR2789039A3 (en) * 1998-08-27 2000-08-04 Chung Shiu Su Push cart that incorporates main frame, handle, front support, two wheel frames, two wheels, retractable rod and a rear support
DE10248582A1 (en) * 2002-10-17 2004-05-06 Erhard Lamberti Shopping or transporting trolley has U-shaped handle equipped with coupling for articulated hooking up to especially luggage rack of bicycle, whereby first coupling component is connected to handle and second to luggage rack
GB2414448A (en) * 2004-05-27 2005-11-30 Hsueh-Jean Liao Electrically propelled and foldable golf trolley

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505495A (en) * 1982-12-14 1985-03-19 Janet Mary Penrose Foss Portable, foldable and convertible luggage trolley
JPH0651471B2 (en) * 1989-04-12 1994-07-06 高男 齊藤 Folding trolley
CN2815807Y (en) * 2005-12-16 2006-09-13 武汉箕星制冷有限公司 Light transfer vehicle
US7963531B2 (en) * 2008-08-22 2011-06-21 Foldable Stuff, Llc Collapsible utility cart
CN201659997U (en) * 2010-03-19 2010-12-01 蓝金义 Folding pusher
CN202186404U (en) * 2011-06-16 2012-04-11 黄怀高 Foldable luggage cart
US20130026738A1 (en) * 2011-07-29 2013-01-31 Gordon Liao Golf cart folding device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87206269U (en) * 1987-04-10 1988-03-30 武汉工学院工厂 Universal foldable sleeping cart
US4802681A (en) * 1987-12-17 1989-02-07 Hung Tung Ping Wheelbarrow
CN2055465U (en) * 1989-04-26 1990-04-04 韦秋成 Multifunction folding trolley
CN2117305U (en) * 1992-02-12 1992-09-30 林旗峰 Multifunctional folding trolley
FR2789039A3 (en) * 1998-08-27 2000-08-04 Chung Shiu Su Push cart that incorporates main frame, handle, front support, two wheel frames, two wheels, retractable rod and a rear support
DE10248582A1 (en) * 2002-10-17 2004-05-06 Erhard Lamberti Shopping or transporting trolley has U-shaped handle equipped with coupling for articulated hooking up to especially luggage rack of bicycle, whereby first coupling component is connected to handle and second to luggage rack
GB2414448A (en) * 2004-05-27 2005-11-30 Hsueh-Jean Liao Electrically propelled and foldable golf trolley

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106364535A (en) * 2016-08-24 2017-02-01 李传慧 Novel folding object bearing device for farmers
CN106364535B (en) * 2016-08-24 2018-11-27 宁夏盐池西部畅享农业生物科技有限公司 A kind of peasant's article bogey of folding
CN109969237A (en) * 2017-12-28 2019-07-05 东莞市全乐电动科技有限公司 A kind of semi-automatic portable four-wheel linkage folding trailer
CN109969237B (en) * 2017-12-28 2023-12-29 东莞市全乐电动科技有限公司 Semi-automatic portable four-wheel linkage folding small trailer
CN109823381A (en) * 2019-01-15 2019-05-31 陈其坚 A kind of logistics transportation cart of installation easy to disassemble
CN109823381B (en) * 2019-01-15 2021-04-30 陈其坚 Shallow is used in commodity circulation transportation convenient to dismantle installation

Also Published As

Publication number Publication date
CN105946924A (en) 2016-09-21
CN105946925A (en) 2016-09-21
CN105946921A (en) 2016-09-21
CN106114568A (en) 2016-11-16
CN105882705A (en) 2016-08-24
CN105946923A (en) 2016-09-21
CN105946922A (en) 2016-09-21
CN106114569A (en) 2016-11-16
CN105882706A (en) 2016-08-24
CN103407473B (en) 2016-06-22

Similar Documents

Publication Publication Date Title
CN103407325B (en) A kind of Four-wheel foldable trailer
CN103407471A (en) Combined folded trailer
CN103407473A (en) Four-wheel foldable trailer
CN103407472B (en) Four-wheel foldable trailer
CN103407470B (en) For the Rear frame component of modular folding trailer
CN103407469A (en) Rear baffle plate for folded trailer
CN103407468B (en) For the Rear frame component of folding trailer
CN103407478A (en) Connector for folded trailer
CN103407475A (en) Front baffle plate for folded trailer
CN103407477B (en) For the back shield assembly of modular folding trailer
CN105774868A (en) Four-wheel folding trailer
CN105752133A (en) Four-wheeled folding trailer
CN105752132A (en) Four-wheeled folding trailer convenient to store
CN105711628A (en) Foldable four-wheel folding trailer

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
CB03 Change of inventor or designer information

Inventor after: Shen Jun

Inventor before: Hu Yan

COR Change of bibliographic data
TA01 Transfer of patent application right

Effective date of registration: 20160415

Address after: Le Cheng Zhen Niu Bi Dong Cun 325600 Yueqing City, Zhejiang Province

Applicant after: Shen Jun

Address before: Songjiang Road, Suzhou City Industrial Park, Jiangsu province 215000 No. 208 Building 2 room 103

Applicant before: Suzhou Bilong Decoration Engineering Co., Ltd.

C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170510

Address after: 226000 No. 899 Jinxiu Road, hi tech Industrial Development Zone, Jiangsu, Nantong, China

Patentee after: JIANGSU DUKE NEW ENERGY AUTOMOBILE CO., LTD.

Address before: Le Cheng Zhen Niu Bi Dong Cun 325600 Yueqing City, Zhejiang Province

Patentee before: Shen Jun

TR01 Transfer of patent right