CN106114571A - A kind of folding trailer - Google Patents
A kind of folding trailer Download PDFInfo
- Publication number
- CN106114571A CN106114571A CN201610338250.5A CN201610338250A CN106114571A CN 106114571 A CN106114571 A CN 106114571A CN 201610338250 A CN201610338250 A CN 201610338250A CN 106114571 A CN106114571 A CN 106114571A
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- China
- Prior art keywords
- bearing surface
- hole
- load
- pivoted hole
- luggage carrier
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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
- 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
- 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 kind of folding trailer, including front frame assembly, Rear frame component and for coupling the coupling mechanism of front frame assembly and Rear frame component；Rear frame component includes rear luggage carrier, two rear wheel assemblies, is arranged on the backboard of rear luggage carrier rear end and for connecting two connectors of backboard and rear luggage carrier；The front end of connector is provided with the first pivoted hole, draws bearing surface in afterwards, rear launches bearing surface and rear arc transition face；Rear gathering bearing surface draws bearing surface in after launching on bearing surface and be perpendicular to after being positioned at；The distance of the central axis of the first pivoted hole and rear expansion bearing surface is more than the distance of this central axis with rear gathering bearing surface；The rear end of connector is provided with the second pivoted hole, draws load-carrying surface in and launch load-carrying surface, and gathering load-carrying surface and expansion load-carrying surface are positioned at the lower section of the second pivoted hole, launch load-carrying surface and are positioned at second pivoted hole side close to the first pivoted hole.Present configuration is relatively reasonable compact.
Description
Technical field
The present invention relates to trailer technical field, particularly relate to a kind of folding trailer.
Background technology
People are commonly used to four-wheel trailer when shopping carrying article, can be for user saving strength, but current four-wheel
Trailer volume is the biggest, it is impossible to folds and draws in, inconvenient to carry, takes up room the biggest when depositing.
Patent documentation CN202186404U discloses a kind of foldable luggage trolley, and this car includes telescopic vehicle frame, its underpart
Being provided with the cylindrical push-pull bar being hinged with luggage truck weight tray, described cylindrical push-pull bar top is provided with first annular groove,
First annular groove lower surface is provided with the first spiral-guide face；Weight tray is fitted with vehicle frame after folding, and it hangs down with vehicle frame after launching
Straight setting, is used for carrying luggage；Weight tray is connected side and is provided with and fixes the wheel that is connected with described weight tray and erect with vehicle frame
Direct Travel control piece；Wheel stand has and the second cannelure of described cylindrical push-pull bar adaptation socket, on the second cannelure
End face is provided with the second spiral-guide face suitable with described first spiral-guide face, a fixing rotation of taking a seat in the second cannelure
Torque spring；Push-pull bar is vertically arranged in the second cannelure, and the shaft hole sleeve of push-pull bar bottom is connected on vertical road wheel Stroke Control
In the axle of part；When weight tray launches, described vertical road wheel forms control piece and the second cannelure is formed pushing tow, described first
The common effect in spiral-guide face and the second spiral-guide face lower guiding is moved on vertical road wheel and is launched to both sides outward turning, carries the end
When plate folds, wheel inward turning under the effect of described rotary torsion spring reclaims and vertically moves down simultaneously；Vehicle wheel edge after folding
Protrude from edge at the bottom of the weight tray after folding.
Detailed mechanism and the operation principle of collapsible wheel described in detail by this patent documentation, but this kind of foldable luggage trolley
Owing to being the push-and-pull vehicle of only two-wheeled, carrying dynamics is less, it is impossible to be widely used in factory floor use.
Summary of the invention
It is an object of the invention to provide a kind of compact, function more comprehensively folding trailer relatively reasonable in structure.
The technical scheme realizing the object of the invention is: a kind of folding trailer, including front frame assembly, Rear frame component and
For coupling the coupling mechanism of front frame assembly and Rear frame component；Rear frame component includes rear luggage carrier, two rear car wheels
Part, it is arranged on the backboard of rear luggage carrier rear end and for connecting two connectors of backboard and rear luggage carrier；Its feature
It is: the left and right sides end of rear luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller, after each rear traveller is provided with annular
Limiting block platform, the rear end of each rear limiting block platform is provided with multiple rear spacing teeth groove；The rear end of each rear traveller is provided with rear pin-and-hole；Each connection
The front end of part be provided with the first pivoted hole, afterwards draw in bearing surface, rear launch bearing surface and connect after draw in bearing surface and after launch
The rear arc transition face of bearing surface；Each connector with corresponding one after traveller by through the first pivoted hole and the bearing pin of rear pin-and-hole
Being rotationally connected, the central axis of the first pivoted hole is more than this central axis and rear gathering bearing surface with the distance of rear expansion bearing surface
Distance；Launching bearing surface after each and be parallel to backboard place plane, each rear gathering bearing surface is perpendicular to backboard place and puts down
Face；The rear end of each connector is provided with the second pivoted hole, the gathering load-carrying surface for being rotationally connected with backboard and launches load
Face, draws load-carrying surface in and is positioned at second pivoted hole side away from the first pivoted hole, and it is close that expansion load-carrying surface is positioned at the second pivoted hole
The side of the first pivoted hole；Each rear wheel assemblies includes that having the rear wheel frame of rear sleeve, rear torsion spring and rotation is arranged on rear wheel frame
On rear wheel；The front end of each rear sleeve is provided with the rear spacing double wedge matched with each rear spacing teeth groove；Rear sleeve is set in phase
After answering one on traveller, rear torsion spring set be located at corresponding after on traveller, and within being positioned at rear sleeve；Backboard connects after being provided with two
Connecing boss, each rear boss that connects is provided with rear axis hole and the load flange along rear luggage carrier horizontal direction evagination；Connect convex after each
Platform and a corresponding connector are by being rotationally connected through the bearing pin of rear axis hole and the second pivoted hole；Load flange is along with rear company
Connect boss during the second pivoted hole rotates, the gathering load-carrying surface of connector can be connected to and launch in load-carrying surface, and then
Band follower link rotates；External force promotes backboard to rotate backward around rear axis hole, until load flange is connected to the expansion of connector
In load-carrying surface, now backboard upper surface is in same plane, in the expansion load-carrying surface of connector with the upper surface of rear luggage carrier
Position-limiting action under, stop backboard continue to rotate backward；When in the expanded state, described front frame assembly includes front loading
Frame, two front wheel assemblies, the front apron being arranged on front luggage carrier front end and the pull bar being arranged on front apron；Front luggage carrier
The left and right sides end of front end is respectively provided with a front sliding column prominent forward, and each front sliding column is provided with annular front limit gear platform, each before
The front end of limiting block platform is provided with multiple front limit teeth groove；The front end of each front sliding column is provided with front pin-and-hole；Each front wheel assemblies includes tool
There is the front vehicle wheel that the front wheel carrier of anterior cannula, front torsion spring and rotation are arranged on front wheel carrier；The rear end of each anterior cannula be provided with each before
The front limit double wedge that spacing teeth groove matches；Anterior cannula is set on a corresponding front sliding column, before front torsion spring set is located at accordingly
On traveller, and within being positioned at anterior cannula；Front apron be provided with two before connect boss, each before connect boss be provided with front-axle hole,
Bearing surface and the front arc transition face of front expansion bearing surface is drawn in before front gathering bearing surface, front expansion bearing surface and connection；Before
Distance a of the central axis of axis hole and front expansion bearing surface is more than distance b of this central axis with front gathering bearing surface；Connect before each
Connect boss by being rotationally connected through the bearing pin of front-axle hole and a corresponding front pin-and-hole with front sliding column；Bearing surface is launched parallel before each
In front apron place plane, each bearing surface that draws in is perpendicular to front apron place plane；Front apron is close to one end of front connection boss
Being provided with the rotating junction with pin-and-hole, front apron is provided with two clamps of protrusion away from one end of front connection boss；The end of pull bar
Portion is rotationally connected with the rotating junction of front apron, the middle part of pull bar can clamping connection between two clamps.
Present configuration is relatively reasonable compact, and function is the most comprehensive, it is possible to realize backboard and the overlapping of rear luggage carrier, exhibition
Flat, moreover it is possible to rear wheel assemblies is carried out second positioning, it is achieved the stable rolling of rear wheel and the overlapping with rear luggage carrier.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention；
Fig. 2 is a kind of perspective view when another angle is observed of the connector shown in Fig. 1；
Fig. 3 is that the Four-wheel foldable trailer using connector shown in Fig. 1 to make a kind of stereochemical structure when being in deployed condition is shown
It is intended to；
Fig. 4 is a kind of perspective view of front frame assembly in trailer shown in Fig. 3；
Fig. 5 is a kind of side view of front frame assembly shown in Fig. 4；
Fig. 6 is a kind of side view of front apron in front frame assembly shown in Fig. 4；
Fig. 7 is a kind of explosive view of front frame assembly shown in Fig. 4；
Fig. 8 is a kind of perspective view of Rear frame component in trailer shown in Fig. 3；
Fig. 9 is a kind of perspective view when another angle is observed of the Rear frame component shown in Fig. 8；
Figure 10 is a kind of side view of Rear frame component shown in Fig. 8；
Figure 11 is a kind of explosive view of Rear frame component shown in Fig. 8；
Figure 12 is a kind of explosive view of Rear frame component shown in Fig. 9；
Figure 13 is a kind of perspective view when being in flat of the trailer shown in Fig. 3；
Figure 14 is a kind of perspective view of backboard in trailer shown in Figure 13；
Figure 15 is a kind of perspective view when being in preliminary folded state of the trailer shown in Fig. 3；
Figure 16 is backboard and a kind of explosive view of connector in Figure 15；
Figure 17 is a kind of side view of trailer shown in Figure 15；
Figure 18 is a kind of structural representation of coupling mechanism in trailer shown in Fig. 3；
Figure 19 is a kind of perspective view when being in completely folded state of the trailer shown in Fig. 3；
Figure 20 is a kind of side view of trailer shown in Figure 19.
It is labeled as shown in accompanying drawing: front 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, frontal arc
Shape transition face 135, rotating junction 136, clamp 137, pull bar 14, Rear frame component 2, rear luggage carrier 21, rear traveller 211, after
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, backboard 23, the rear boss 231 that connects, rear axis hole 232, load flange 233, connect
Part 24, the first pivoted hole 241, the rear bearing surface 242 that draws in, rear expansion bearing surface 243, rear arc transition face 244, the second pivoted hole
245, gathering load-carrying surface 246, expansion load-carrying surface 247, coupling mechanism 3, front coupling bar 31, location wheel 32, locating notch 321, after
Coupling bar 33, couples flange 34, axostylus axostyle 35, annular gear platform 36, screw thread spring 37, attachment bolt assembly 38, bearing pin 100.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of connector for folding trailer, and as shown in Fig. 1 and Fig. 2, the front end of connector 24 is provided with
One pivoted hole 241, rear draw in bearing surface 242, rear launch bearing surface 243 and connect after draw in bearing surface and after launch to abut
The rear arc transition face 244 in face；Rear gathering bearing surface draws bearing surface in after launching on bearing surface and be perpendicular to after being positioned at；First
The distance of the central axis of pivoted hole and rear expansion bearing surface is more than the distance of this central axis with rear gathering bearing surface；Connector
Rear end be provided with the second pivoted hole 245, draw in load-carrying surface 246 and launch load-carrying surface 247, draw in load-carrying surface and launch load-carrying surface
It is positioned at the lower section of the second pivoted hole, and gathering load-carrying surface is positioned at second pivoted hole side away from the first pivoted hole, launches load
Face is positioned at second pivoted hole side close to the first pivoted hole.
(application examples 1)
Should use-case be a kind of Four-wheel foldable trailer using above-described embodiment 1 to make, see Fig. 3 to Figure 20, including front frame
Assembly 1, Rear frame component 2 and for coupling the coupling mechanism 3 of front frame assembly and Rear frame component.
Should see figure, 3 to Figure 12 by use-case concrete structure when being in deployed condition, described front frame assembly includes front loading
11, two front wheel assemblies 12 of frame, the front apron 13 being arranged on front luggage carrier front end and the pull bar 14 being arranged on front apron；
The left and right sides end of front luggage carrier front end is respectively provided with a front sliding column 111 prominent forward, and each front sliding column limits before being provided with annular
Position gear platform 112, the front end of each front limit gear platform is provided with multiple 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 includes that having the front wheel carrier 122 of anterior cannula 121, front torsion spring 123 and rotation is arranged on front wheel carrier
Front vehicle wheel 124；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 in
On a corresponding front sliding column, front torsion spring set is located on corresponding front sliding column, and within being positioned at anterior cannula；Front apron is provided with two
Front connection boss 131, each before connect boss be provided with front-axle hole 132, front gathering bearing surface 133, front expansion bearing surface 134, with
And before connecting, draw bearing surface and the front arc transition face 135 of front expansion bearing surface in；As shown in Figure 6, the central axis of front-axle hole
With distance a of front expansion bearing surface more than this central axis and distance b of front gathering bearing surface；Each before connect boss by through
The bearing pin 100 of front-axle hole and a corresponding front pin-and-hole is rotationally connected with front sliding column；Launch bearing surface before each and be parallel to front apron institute
In plane, each bearing surface that draws in is perpendicular to front apron place plane.
Rear frame component includes 21, two rear wheel assemblies 22 of rear luggage carrier, is arranged on the backboard of rear luggage carrier rear end
23 and for connecting two connectors 24 of backboard and rear luggage carrier.
The left and right sides end of rear luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller 211, and each rear traveller is provided with
Limiting block platform 212 after annular, the rear end of each rear limiting block platform is provided with multiple rear spacing teeth groove 213；The rear end of each rear traveller is provided with
Rear pin-and-hole 214；The front end of each connector be provided with the first pivoted hole 241, rear draw in bearing surface 242, rear launch bearing surface 243, with
And after connecting, draw bearing surface and the rear arc transition face 244 of rear expansion bearing surface in；Each connector with corresponding one after traveller lead to
Crossing the bearing pin 100 through the first pivoted hole and rear pin-and-hole 214 to be rotationally connected, the central axis of the first pivoted hole abuts with rear expansion
The distance in face is more than the distance of this central axis with rear gathering bearing surface；Each rear expansion bearing surface is parallel to backboard place puts down
Face, each rear bearing surface that draws in is perpendicular to backboard place plane；The rear end of each connector is provided with for being rotationally connected with backboard
The second pivoted hole 245, draw load-carrying surface 246 in and launch load-carrying surface 247, draw load-carrying surface in and be positioned at the second pivoted hole away from the
The side of one pivoted hole, launches load-carrying surface and is positioned at second pivoted hole side close to the first pivoted hole；Each rear wheel assemblies includes
There is the rear wheel frame 222 of rear sleeve 221, rear torsion spring 223 and rotate the rear wheel 224 being arranged on rear wheel frame；Each rear sleeve
Front end is provided with the rear spacing double wedge 225 matched with each rear spacing teeth groove；Rear sleeve be set in corresponding one after on traveller, turn round afterwards
Spring be set in corresponding after on traveller, and within being positioned at rear sleeve；Backboard connects boss 231, each rear connection after being provided with two
Boss is provided with rear axis hole 232 and the load flange 233 along rear luggage carrier horizontal direction evagination；Boss and corresponding one is connected after each
Individual connector is rotationally connected by the bearing pin 100 through rear axis hole and the second pivoted hole；Load flange is along with rear connection boss
During the second pivoted hole rotates, the gathering load-carrying surface of connector can be connected to and launch in load-carrying surface, and then the company of drive
Fitting rotates.
As shown in Figure 18, should use-case include being arranged on the two of the left and right sides end of front luggage carrier rear end by coupling mechanism 3
Individual front coupling bar 31, the location wheel 32 being fixedly installed on each front coupling bar, it is arranged on the left and right sides end of rear luggage carrier front end
Two after coupling bar 33, the connection flange 34 being fixedly installed on each rear coupling bar, run through two after coupling bar can be along left and right
Axostylus axostyle 35 that direction moves back and forth, two be fixedly installed on axostylus axostyle annular gear platforms 36, for providing reseting elasticity for axostylus axostyle
Screw thread spring 37 and for be rotationally connected each rear coupling bar and corresponding one location wheel attachment bolt assembly 38；Each fixed
The edge of position wheel is provided with two the arc shaped locating notches 321 being centrosymmetric, and each annular gear platform is back and forth moving along with axostylus axostyle
During Dong, embed or remove in a corresponding locating notch；Described front frame assembly and Rear frame component can be around coupling spiral shell
Bolt assembly 38 overlaps after rotating 180 degree.
Should be in use-case, front apron is provided with the rotating junction 136 with pin-and-hole, front close to one end of front connection boss
Plate is provided with two clamps 137 of protrusion away from one end of front connection boss；The bottom of pull bar rotates with the rotating junction of front apron
Connect, the middle part of pull bar can clamping connection between two clamps.In concrete practice, it is possible to pull bar is fixedly installed on front apron.
Should use-case when being in deployed condition, as shown in Fig. 3 to Figure 12, the upper surface of front luggage carrier and rear luggage carrier is in
Same plane, front luggage carrier and rear luggage carrier are coupled by coupling mechanism, and are embedded the location of corresponding location wheel by location wheel
Both are locked by breach.Now in front frame assembly, front apron is perpendicular to front luggage carrier, the front expansion on front limit gear platform
Bearing surface 131 is parallel to front apron place plane, and is connected on the front end face of anterior cannula 121, after also making anterior cannula simultaneously
End each front limit double wedge be embedded in corresponding front limit teeth groove, front limit teeth groove thus anterior cannula is had restriction rotate effect
Really so that front vehicle wheel now is perpendicular to front luggage carrier place plane, can roll to realize normally towing.Rear frame component
In, backboard is perpendicular to rear luggage carrier place plane, and the gathering that the rear load flange 233 connecting boss is connected to connector is held
On power face 246, this gathering load-carrying surface in this condition, is possible to prevent backboard to continue to rotate forward；Rear exhibition in each connector
Open bearing surface 243 and be parallel to backboard place plane, and be connected on the rear end face of corresponding rear sleeve so that rear sleeve front end
Each after spacing double wedge be embedded in after in spacing teeth groove, rear spacing teeth groove thus rear sleeve is had restriction rotating effect so that
Rear wheel now is perpendicular to rear luggage carrier place plane, can roll to realize normally towing.
Should be in shown in the concrete structure as Figure 13 to Figure 14 of flat, under deployed condition shown in Fig. 3, outward by use-case
Try hard to recommend dynamic backboard to rotate backward around rear axis hole, until load flange 233 is connected in the expansion load-carrying surface 247 of connector, this
Time backboard upper surface and rear luggage carrier upper surface be in same plane, at the spacing work of the expansion load-carrying surface 247 of connector
Under with, can prevent backboard from continuing to rotate backward；This structure can also serve as support board backboard and use, and is effectively increased and drags
The loaded area of car.
Should be in shown in the concrete structure as Figure 15 to Figure 17 of preliminary folded state, in deployed condition shown in Fig. 3 by use-case
Under, external force promotes forward backboard, owing to the load flange 233 on backboard is connected in the gathering load-carrying surface 246 of connector,
Thus band follower link rotates forward around the first pivoted hole 241, until rear gathering bearing surface 242 is perpendicular to rear luggage carrier place and puts down
Face is also connected on the rear end face of rear sleeve, owing to the central axis of the first pivoted hole and the distance of rear expansion bearing surface are more than being somebody's turn to do
Central axis and the distance of rear gathering bearing surface so that rear sleeve, can be at the bullet of rear torsion spring 223 in the rotation process of connector
Under power effect, sliding certain distance backward so that rear spacing double wedge removes spacing teeth groove after corresponding, due to rear limiting tooth
Groove no longer has restriction rotating effect to rear sleeve, so rear sleeve can drive rear wheel frame 222 under the twisting force of rear torsion spring
And rear wheel 224 turn an angle after be connected on the basal surface of rear luggage carrier.It addition, under deployed condition shown in Fig. 3, outward
Power promotes front apron backward, connects boss 131 and rotate backward around front-axle hole 132, until front gathering bearing surface 133 abuts before driving
On the front end face of anterior cannula, due to front-axle hole central axis and front expansion bearing surface distance a more than this central axis with
Distance b of front gathering bearing surface, so during the rotating backward of backboard, anterior cannula can sliding certain distance forward, make
Obtain front limit double wedge to remove from corresponding front limit teeth groove, owing to front limit teeth groove does not has restriction rotation effect to anterior cannula
Really, so anterior cannula can drive front wheel carrier and front vehicle wheel to turn an angle before being connected under the twisting force of front torsion spring
On the basal surface of luggage carrier.
Should be in shown in the concrete structure as Figure 19 to Figure 20 of completely folded state by use-case, tentatively folding shown in Figure 15
Under state, press axostylus axostyle 35 so that axostylus axostyle overcomes the reseting elasticity of screw thread spring 37 and moves a certain distance so that be fixed on axle
Annular gear platform on bar removes from a corresponding locating notch 321, such that it is able to folding carrier and rear luggage carrier, works as handle
When front luggage carrier or rear luggage carrier rotation 180 degree make both overlap, namely the basal surface of front frame assembly is made to adjoin rear car
After the basal surface of frame assembly, unclamping axostylus axostyle, axostylus axostyle moves under the reseting elasticity of screw thread spring 37 and resets so that annular gear platform
Again embed in another locating notch 321 corresponding, lock front luggage carrier and rear luggage carrier so that both will not divide themselves
Open.
It addition, a characteristic should also be had use-case, it is simply that after attachment bolt assembly 38 is pulled down, front frame assembly and after
Chassis assembly all can independently become two-wheeled folding trailer；For front frame assembly, pull bar continues as towing holding rod,
Front luggage carrier continues as luggage carrier；But for Rear frame component, it is using the axostylus axostyle in Rear frame component as towing
Holding rod, backboard is as support board.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not to this
The restriction of the embodiment of invention.For those of ordinary skill in the field, the most all right
Make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And these belong to
What the spirit in the present invention was extended out obviously changes or changes among still in protection scope of the present invention.
Claims (1)
1. a folding trailer, including front frame assembly, Rear frame component and for coupling front frame assembly and Rear frame group
The coupling mechanism of part；Rear frame component includes rear luggage carrier, two rear wheel assemblies, is arranged on the backboard of rear luggage carrier rear end
And for connecting two connectors of backboard and rear luggage carrier；It is characterized in that: the left and right sides end of rear luggage carrier rear end
Being respectively provided with a rearwardly projecting rear traveller, each rear traveller is provided with limiting block platform after annular, and the rear end of each rear limiting block platform sets
There is multiple rear spacing teeth groove；The rear end of each rear traveller is provided with rear pin-and-hole；The front end of each connector is provided with the first pivoted hole, draws in afterwards
Bearing surface and the rear rear arc transition face launching bearing surface is drawn in after bearing surface, rear expansion bearing surface and connection；Each connector
With corresponding one after traveller by being rotationally connected through the bearing pin of the first pivoted hole and rear pin-and-hole, the central axis of the first pivoted hole
With the distance of rear expansion bearing surface more than this central axis and the distance of rear gathering bearing surface；After after each, expansion bearing surface is parallel to
Baffle plate place plane, each rear bearing surface that draws in is perpendicular to backboard place plane；The rear end of each connector be provided with for backstop
The second pivoted hole that plate is rotationally connected, draw load-carrying surface in and launch load-carrying surface, draw in load-carrying surface be positioned at the second pivoted hole away from
The side of the first pivoted hole, launches load-carrying surface and is positioned at second pivoted hole side close to the first pivoted hole；Each rear wheel assemblies bag
Include and there is the rear wheel that the rear wheel frame of rear sleeve, rear torsion spring and rotation are arranged on rear wheel frame；The front end of each rear sleeve be provided with
The rear spacing double wedge that after each, spacing teeth groove matches；Rear sleeve be set in corresponding one after on traveller, rear torsion spring set is located at accordingly
Rear traveller on, and within being positioned at rear sleeve；Backboard connects boss after being provided with two, each rear boss that connects is provided with rear axis hole
With the load flange along rear luggage carrier horizontal direction evagination；Boss and a corresponding connector is connected by through rear axis hole after each
It is rotationally connected with the bearing pin of the second pivoted hole；Load flange along with rear connection boss around second pivoted hole rotate during,
The gathering load-carrying surface of connector can be connected to and launch in load-carrying surface, and then band follower link rotates；External force promote backboard around
Rear axis hole rotates backward, until load flange is connected in the expansion load-carrying surface of connector, and now backboard upper surface and rear bearing
The upper surface of thing frame is in same plane, under the position-limiting action of the expansion load-carrying surface of connector, stops backboard to continue backward
Rotate；When in the expanded state, described front frame assembly includes front luggage carrier, two front wheel assemblies, is arranged on front loading
The front apron of frame front end and the pull bar being arranged on front apron；The left and right sides end of front luggage carrier front end is respectively provided with one forward
Prominent front sliding column, each front sliding column is provided with annular front limit gear platform, and the front end of each front limit gear platform is provided with multiple front limit tooth
Groove；The front end of each front sliding column is provided with front pin-and-hole；Each front wheel assemblies includes that having the front wheel carrier of anterior cannula, front torsion spring and rotation sets
Put the front vehicle wheel on front wheel carrier；The rear end of each anterior cannula is provided with the front limit double wedge matched with each front limit teeth groove；Protheca
Pipe box is located 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；On front apron
Connecting boss before being provided with two, each front boss that connects is provided with front-axle hole, front gathering bearing surface, front expansion bearing surface and connection
Front gathering bearing surface and the front arc transition face of front expansion bearing surface；The central axis of front-axle hole and the distance of front expansion bearing surface
A is more than distance b of this central axis with front gathering bearing surface；Boss is connected by selling before front-axle hole and corresponding one before each
The bearing pin in hole is rotationally connected with front sliding column；Launching bearing surface before each and be parallel to front apron place plane, each gathering bearing surface is vertical
In front apron place plane；Front apron is provided with the rotating junction with pin-and-hole close to one end of front connection boss, and front apron is remote
Two clamps of protrusion it are provided with from one end of front connection boss；The bottom of pull bar is rotationally connected with the rotating junction of front apron, draws
The middle part of bar can clamping connection between two clamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338250.5A CN106114571A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338250.5A CN106114571A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201310379691.6A CN103407478B (en) | 2013-08-27 | 2013-08-27 | Folding trailer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310379691.6A Division CN103407478B (en) | 2013-08-27 | 2013-08-27 | Folding trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106114571A true CN106114571A (en) | 2016-11-16 |
Family
ID=49600542
Family Applications (10)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610340310.7A Withdrawn CN106114573A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201310379691.6A Active CN103407478B (en) | 2013-08-27 | 2013-08-27 | Folding trailer |
| CN201610338211.5A Withdrawn CN106114570A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610340267.4A Withdrawn CN106080694A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339944.0A Withdrawn CN106080692A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339964.8A Withdrawn CN106080693A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339961.4A Withdrawn CN106114572A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339330.2A Withdrawn CN106080691A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610338250.5A Withdrawn CN106114571A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339328.5A Withdrawn CN106080690A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
Family Applications Before (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610340310.7A Withdrawn CN106114573A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201310379691.6A Active CN103407478B (en) | 2013-08-27 | 2013-08-27 | Folding trailer |
| CN201610338211.5A Withdrawn CN106114570A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610340267.4A Withdrawn CN106080694A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339944.0A Withdrawn CN106080692A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339964.8A Withdrawn CN106080693A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339961.4A Withdrawn CN106114572A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
| CN201610339330.2A Withdrawn CN106080691A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610339328.5A Withdrawn CN106080690A (en) | 2013-08-27 | 2013-08-27 | A kind of folding trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (10) | CN106114573A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110406577A (en) * | 2019-08-05 | 2019-11-05 | 徐州鑫路达配送服务有限公司 | A kind of dual-purpose type folding Hand-cart for transporting |
| GB202113625D0 (en) * | 2021-09-24 | 2021-11-10 | Preston Innovations Ltd | Transportation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326731A (en) * | 1979-10-01 | 1982-04-27 | Stephen Woychio | Folding cart |
| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| US5947489A (en) * | 1996-10-23 | 1999-09-07 | E-Z Red Company | Foldable creeper |
| CN101177106A (en) * | 2006-11-10 | 2008-05-14 | 简世坤 | Flatear capable of drawing caster and caster positioning device thereof |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2117305U (en) * | 1992-02-12 | 1992-09-30 | 林旗峰 | Multifunctional folding trolley |
| CN2283599Y (en) * | 1996-10-31 | 1998-06-10 | 青岛崂山工具厂 | Multipurpose hand cart |
| US6053514A (en) * | 1998-08-27 | 2000-04-25 | Su; Chung-Shiu | Push cart |
| JP2002316647A (en) * | 2001-02-16 | 2002-10-29 | A & A Kk | Hand cart |
| SE525130C2 (en) * | 2003-01-31 | 2004-12-07 | Bt Ind Ab | Conductor truck with power transmitting means and coupling for transferring a pumping control arm movement to a drive motion for the steering wheels |
| US6877586B2 (en) * | 2003-04-11 | 2005-04-12 | Sylmark Holdings Limited | Hinge system for combination hand truck, step ladder and dolly device |
| CN2710701Y (en) * | 2004-05-27 | 2005-07-20 | 廖学金 | Electric golf cart structure |
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer vehicle |
| CN201046713Y (en) * | 2007-04-26 | 2008-04-16 | 煜益实业股份有限公司 | Handle collapsible push-car structure |
| CN101559780B (en) * | 2008-04-14 | 2010-11-17 | 陈金喜 | Caster wheel-collapsible baggage car |
| CN201329886Y (en) * | 2008-11-24 | 2009-10-21 | 陈传长 | Foldable wheel carrier |
-
2013
- 2013-08-27 CN CN201610340310.7A patent/CN106114573A/en not_active Withdrawn
- 2013-08-27 CN CN201310379691.6A patent/CN103407478B/en active Active
- 2013-08-27 CN CN201610338211.5A patent/CN106114570A/en not_active Withdrawn
- 2013-08-27 CN CN201610340267.4A patent/CN106080694A/en not_active Withdrawn
- 2013-08-27 CN CN201610339944.0A patent/CN106080692A/en not_active Withdrawn
- 2013-08-27 CN CN201610339964.8A patent/CN106080693A/en not_active Withdrawn
- 2013-08-27 CN CN201610339961.4A patent/CN106114572A/en not_active Withdrawn
- 2013-08-27 CN CN201610339330.2A patent/CN106080691A/en not_active Withdrawn
- 2013-08-27 CN CN201610338250.5A patent/CN106114571A/en not_active Withdrawn
- 2013-08-27 CN CN201610339328.5A patent/CN106080690A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326731A (en) * | 1979-10-01 | 1982-04-27 | Stephen Woychio | Folding cart |
| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| US5947489A (en) * | 1996-10-23 | 1999-09-07 | E-Z Red Company | Foldable creeper |
| CN101177106A (en) * | 2006-11-10 | 2008-05-14 | 简世坤 | Flatear capable of drawing caster and caster positioning device thereof |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106080692A (en) | 2016-11-09 |
| CN106080690A (en) | 2016-11-09 |
| CN103407478B (en) | 2016-06-29 |
| CN106114572A (en) | 2016-11-16 |
| CN106080694A (en) | 2016-11-09 |
| CN106114570A (en) | 2016-11-16 |
| CN106114573A (en) | 2016-11-16 |
| CN106080691A (en) | 2016-11-09 |
| CN103407478A (en) | 2013-11-27 |
| CN106080693A (en) | 2016-11-09 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161116 |