CN103407468A - Rear frame component for folded trailer - Google Patents
Rear frame component for folded trailer Download PDFInfo
- Publication number
- CN103407468A CN103407468A CN2013103784054A CN201310378405A CN103407468A CN 103407468 A CN103407468 A CN 103407468A CN 2013103784054 A CN2013103784054 A CN 2013103784054A CN 201310378405 A CN201310378405 A CN 201310378405A CN 103407468 A CN103407468 A CN 103407468A
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- Prior art keywords
- luggage carrier
- hole
- pivoted hole
- attaching parts
- back shield
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
- B62B1/20—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/02—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the wheel axis is disposed between the load and the handles
- B62B1/04—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the wheel axis is disposed between the load and the handles involving parts being adjustable, collapsible, attachable, detachable, or convertible
Abstract
The invention discloses a rear frame component for a folded trailer. The rear frame component comprises a rear carrier, two rear wheel components, a rear baffle plate and connectors, the front end of each connector is provided with a first pivot joint hole, a rear folded abutting surface, a rear unfolded abutting surface and a rear arc transition surface, the distance between the central axis of each first pivot joint hole and the corresponding rear unfolded abutting surface is longer than that between the central axis of each first pivot joint hole and the corresponding rear folded abutting surface, the rear end of each connector is provided with a second pivot joint hole, a folded carrying surface and an unfolded carrying surface, the rear baffle plate is provided with rear connecting bosses, each rear connecting boss is provided with a rear shaft hole and a carrying convex plate, and each carrying convex plate can be abutted to the folded carrying surface and the unfolded carrying surface of each connector in the rotating process, so that the connectors are driven to rotate. The rear frame component for the four-wheeled folded trailer can be used with a front frame component to form the four-wheeled folded trailer, and can also be individually used as a two-wheeled folded trailer.
Description
Technical field
The present invention relates to the trailer technical field, relate in particular to a kind of rear chassis assembly for 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 and a kind ofly both can be used in conjunction with the front vehicle frame assembly, be combined to form the four-wheel folding trailer, also can use separately, as the rear chassis assembly for the four-wheel folding trailer of two-wheeled folding trailer.
The technical scheme that realizes the object of the invention is: a kind of rear chassis assembly for folding trailer, rear chassis assembly comprise 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; The left and right sides end of rear luggage carrier rear end respectively is provided with a rearwardly projecting rear traveller, and after each, traveller is provided with the rear limiting block platform of annular, and after each, rear end of limiting block platform is provided with a plurality of rear spacing teeth groove; After each, rear end of traveller is provided with rear pin-and-hole; The front end of each attaching parts is provided with the first pivoted hole, rear gathering bearing surface, rear expansion bearing surface and connects the rear rear arc transition face 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 that passes the first pivoted hole and rear pin-and-hole, 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; The rear end of each attaching parts is provided with for the second pivoted hole be rotationally connected with back shield, draws bearing area in and launch bearing area, 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 the rear wheel frame with rear sleeve, rear torsion spring and rotation are arranged on the rear wheel on rear wheel frame; The front end of each rear sleeve is provided with the rear spacing double wedge 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 after being provided with two, connects that boss is provided with rear axis hole after each and along the load flange of rear luggage carrier horizontal direction evagination; After each, connection boss and a corresponding attaching parts are rotationally connected by the bearing pin 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.
In such scheme, back shield can rotate around rear axis hole in external force, until the load flange is connected on the expansion bearing area of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane.
In such scheme, chassis assembly is usingd axostylus axostyle as towing holding rod after this, usings back shield as support board, thereby as two-wheeled folding trailer independently.
In such scheme, rear chassis assembly comprises the coupling mechanism for being connected with external front vehicle frame assembly; This coupling mechanism comprises pitman after two of the left and right sides end that is arranged on rear luggage carrier front end, be fixedly installed on the connection flange on pitman after each, run through two rear pitmans the axostylus axostyle that can move back and forth along left and right directions, be fixedly installed on two annular gear platforms on axostylus axostyle and be used to axostylus axostyle that the screw thread spring of reseting elasticity is provided.
The present invention in use, both can be used in conjunction with the front vehicle frame assembly, was combined to form the four-wheel folding trailer, also can use separately, as the collapsible luggage trolley of two-wheeled, had advantages of multi-purpose.
The accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention;
A kind of perspective view of Fig. 2 when to be rear chassis assembly shown in Figure 1 observe from another angle;
Fig. 3 is a kind of lateral plan of rear chassis assembly shown in Figure 1;
Fig. 4 is a kind of exploded view of rear chassis assembly shown in Figure 1;
Fig. 5 is a kind of exploded view of rear chassis assembly shown in Figure 2;
Fig. 6 is a kind of perspective view while adopting four-wheel folding trailer that rear chassis assembly shown in Figure 1 is made to be in deployed condition;
Fig. 7 is a kind of perspective view of front vehicle frame assembly in trailer shown in Figure 6;
A kind of perspective view of Fig. 8 when to be front vehicle frame assembly shown in Figure 7 observe from another angle;
Fig. 9 is a kind of lateral plan of front vehicle frame assembly shown in Figure 7;
Figure 10 is a kind of lateral plan of front apron in the assembly of front vehicle frame shown in 7;
Figure 11 is a kind of exploded view of front vehicle frame assembly shown in Figure 7;
Figure 12 is a kind of exploded view of front vehicle frame assembly shown in Figure 8;
Figure 13 is a kind of perspective view of trailer shown in Figure 6 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 trailer shown in Figure 6 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 trailer shown in Figure 6;
Figure 19 is a kind of perspective view of trailer shown in Figure 6 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 rear chassis assembly for folding trailer, see that Fig. 1 is to shown in Figure 5, rear chassis assembly 2 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.
Back shield can rotate around rear axis hole in external force, until the load flange is connected on the expansion bearing area of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane.
As shown in Figure 18, rear chassis assembly comprises the coupling mechanism 3 for being connected with external front vehicle frame assembly; This coupling mechanism comprises pitman 33 after two of the left and right sides end that is arranged on rear luggage carrier front end, be fixedly installed on the connection flange 34 on pitman after each, run through two rear pitmans the axostylus axostyle 35 that can move back and forth along left and right directions, be fixedly installed on two annular gear platforms 36 on axostylus axostyle and be used to axostylus axostyle that the screw thread spring 37 of reseting elasticity is provided.
The present embodiment in use, can axostylus axostyle as towing holding rod, using back shield as support board, thereby use as two-wheeled folding trailer independently; Can also be used in conjunction with the front vehicle frame assembly, be combined to form the four-wheel folding trailer and use.
In addition, back shield in the present embodiment both can be comparatively stable be in perpendicular to plane, rear luggage carrier place, be superimposed on the upper surface of rear luggage carrier, turn to the three kind states consistent with plane, rear luggage carrier place to rear side, thereby have easy-to-use, take up room less, deposit and carry advantage comparatively easily.
(application examples 1)
Should use-case be a kind of four-wheel folding trailer, see that Fig. 6, to shown in Figure 20, 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 while should use-case being in deployed condition is shown in Fig. 6 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 10, 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 should use-case, 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 should use-case, an end that connects boss before front apron approaches be 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.
While should use-case being in deployed condition, see that Fig. 6 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 concrete structure that should use-case be in flat is shown in that Figure 13 is to shown in Figure 14, under deployed condition shown in Figure 6, 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 concrete structure that should use-case be in preliminary folded state is shown in that Figure 15 is to shown in Figure 17, under deployed condition shown in Figure 6, 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 6, 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 concrete structure that should use-case be in complete folded state is shown in 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, should also have a characteristic by use-case, 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 (4)
1. rear chassis assembly for folding trailer, rear chassis assembly comprise 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; It is characterized in that: 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; 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 the rear wheel frame (222) of (221) that has rear sleeve, rear torsion spring (223) and rotates and is 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.
2. the rear chassis assembly for folding trailer according to claim 1, it is characterized in that: back shield can rotate around rear axis hole in external force, until the load flange is connected on the expansion bearing area of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane.
3. the rear chassis assembly for folding trailer according to claim 1 is characterized in that: after this, chassis assembly is usingd axostylus axostyle as towing holding rod, usings back shield as support board, thereby as two-wheeled folding trailer independently.
4. the rear chassis assembly for folding trailer according to claim 1, it is characterized in that: rear chassis assembly comprises the coupling mechanism (3) for being connected with external front vehicle frame assembly; This coupling mechanism comprises pitman (33) after two of the left and right sides end that is arranged on rear luggage carrier front end, be fixedly installed on the connection flange (34) on pitman after each, run through two rear pitmans the axostylus axostyle (35) that can move back and forth along left and right directions, be fixedly installed on two annular gear platforms (36) on axostylus axostyle and be used to axostylus axostyle that the screw thread spring (37) of reseting elasticity is provided.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510815799.4A CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
| CN201510812867.1A CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201510815168.2A CN105523068A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly provided with connecting mechanism and used for folding trailer |
| CN201310378405.4A CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
| CN201510814746.0A CN105480276A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with linkage mechanism |
| CN201510814788.4A CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378405.4A CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510814788.4A Division CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
| CN201510815799.4A Division CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
| CN201510814746.0A Division CN105480276A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with linkage mechanism |
| CN201510812867.1A Division CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201510815168.2A Division CN105523068A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly provided with connecting mechanism and used for folding trailer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103407468A true CN103407468A (en) | 2013-11-27 |
| CN103407468B CN103407468B (en) | 2015-12-02 |
Family
ID=49600532
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812867.1A Pending CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201510815799.4A Withdrawn CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
| CN201310378405.4A Expired - Fee Related CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
| CN201510814788.4A Withdrawn CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
| CN201510815168.2A Withdrawn CN105523068A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly provided with connecting mechanism and used for folding trailer |
| CN201510814746.0A Withdrawn CN105480276A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with linkage mechanism |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812867.1A Pending CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201510815799.4A Withdrawn CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510814788.4A Withdrawn CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
| CN201510815168.2A Withdrawn CN105523068A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly provided with connecting mechanism and used for folding trailer |
| CN201510814746.0A Withdrawn CN105480276A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with linkage mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (6) | CN106143556A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741045A (en) * | 2015-11-20 | 2017-05-31 | 江苏国平油品科技有限公司 | A kind of trailer for hauling Mixer pot |
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| DE10210448A1 (en) * | 2002-03-09 | 2003-09-18 | Hando Industry Co | Barrow for heavy goods has extended curved hand grip, lower frame with pivoted foot bar, and load carrier, with depression of foot bar causing barrow to tilt backwards for easy movement |
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2013
- 2013-08-27 CN CN201510812867.1A patent/CN106143556A/en active Pending
- 2013-08-27 CN CN201510815799.4A patent/CN105480277A/en not_active Withdrawn
- 2013-08-27 CN CN201310378405.4A patent/CN103407468B/en not_active Expired - Fee Related
- 2013-08-27 CN CN201510814788.4A patent/CN105480266A/en not_active Withdrawn
- 2013-08-27 CN CN201510815168.2A patent/CN105523068A/en not_active Withdrawn
- 2013-08-27 CN CN201510814746.0A patent/CN105480276A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09286336A (en) * | 1996-04-23 | 1997-11-04 | Watanabe Pipe Kk | Carrier car |
| DE10210448A1 (en) * | 2002-03-09 | 2003-09-18 | Hando Industry Co | Barrow for heavy goods has extended curved hand grip, lower frame with pivoted foot bar, and load carrier, with depression of foot bar causing barrow to tilt backwards for easy movement |
| CN2778632Y (en) * | 2005-03-22 | 2006-05-10 | 苏中修 | Hand cart folding arrangement |
| CN201362272Y (en) * | 2009-03-13 | 2009-12-16 | 简世坤 | Dual-purpose folding vehicle |
| KR20120000001A (en) * | 2010-06-26 | 2012-01-03 | 김종숙 | A portable folding cart |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106741045A (en) * | 2015-11-20 | 2017-05-31 | 江苏国平油品科技有限公司 | A kind of trailer for hauling Mixer pot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105523068A (en) | 2016-04-27 |
| CN105480266A (en) | 2016-04-13 |
| CN105480276A (en) | 2016-04-13 |
| CN105480277A (en) | 2016-04-13 |
| CN103407468B (en) | 2015-12-02 |
| CN106143556A (en) | 2016-11-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Deng Pengpeng Inventor before: Hu Yan |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151111 Address after: 723003 Shaanxi University of Technology, Hantai District, Shaanxi, Hanzhoung Applicant after: Deng Pengpeng 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. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160827 |
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| CF01 | Termination of patent right due to non-payment of annual fee |