CN105966432A - Four-wheel folding trailer convenient to store - Google Patents
Four-wheel folding trailer convenient to store Download PDFInfo
- Publication number
- CN105966432A CN105966432A CN201610161667.9A CN201610161667A CN105966432A CN 105966432 A CN105966432 A CN 105966432A CN 201610161667 A CN201610161667 A CN 201610161667A CN 105966432 A CN105966432 A CN 105966432A
- Authority
- CN
- China
- Prior art keywords
- bearing surface
- wheel
- hole
- luggage carrier
- load
- 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.)
- Withdrawn
Links
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Handcart (AREA)
Abstract
The invention discloses a four-wheel folding trailer convenient to store. The four-wheel folding trailer convenient to store comprises a front trailer frame assembly, a rear trailer frame assembly and a linkage mechanism. The linkage mechanism comprises front linkage rods, locating wheels, rear linkage rods, linkage protruding boards, a shaft rod, annular stop tables, thread springs and linkage bolt assemblies. The edge of each locating wheel is provided with two arc-shaped locating notches in central symmetry. Each annular stop table is inlaid in or moved out of the corresponding locating notch when moving back and forth along with the shaft rod. The front trailer frame assembly and the rear trailer frame assembly can rotate by 180 degrees around the linkage bolt assemblies to be overlapped. The four-wheel folding trailer is convenient to carry and store.
Description
Technical field
The present invention relates to trailer technical field, particularly relate to a kind of Four-wheel foldable trailer be easy to and deposit.
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 one to reduce entirety and take up room, consequently facilitating the four-wheel folding carrying and depositing
Stacked trailer.
The technical scheme realizing the object of the invention is: a kind of Four-wheel foldable trailer being easy to deposit, it is characterised in that: bag
Include front frame assembly, Rear frame component and for coupling the coupling mechanism of front frame assembly and Rear frame component；Rear frame component
Including rear luggage carrier, two rear wheel assemblies, it is arranged on the backboard of rear luggage carrier rear end and for connecting backboard and rear bearing
Two connectors of thing frame；The left and right sides end of rear luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller, each rear traveller
Being provided with limiting block platform after annular, 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；The front end of each connector be provided with the first pivoted hole, afterwards draw in bearing surface, afterwards launch bearing surface and connect after draw in
Bearing surface and the rear arc transition face of rear expansion bearing surface；Each connector with corresponding one after traveller by through the first pivoted hole
Being rotationally connected with the bearing pin of rear pin-and-hole, the central axis of the first pivoted hole is more than this central axis with the distance of rear expansion bearing surface
Distance with rear gathering bearing surface；Launching bearing surface after each and be parallel to backboard place plane, each rear bearing surface that draws in is perpendicular to
Backboard place plane；The rear end of each connector be provided with the second pivoted hole for being rotationally connected with backboard, draw in load-carrying surface,
With expansion load-carrying surface, draw load-carrying surface in and be positioned at second pivoted hole side away from the first pivoted hole, launch load-carrying surface and be positioned at second
Pivoted hole is close to 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 sets
Put the rear wheel on rear wheel frame；The front end of each rear sleeve is provided with the rear spacing double wedge matched with each rear spacing teeth groove；Rear enclosure
Pipe box be located at corresponding one after on traveller, rear torsion spring set be located at corresponding after on traveller, and within being positioned at rear sleeve；Backboard sets
Connecting boss after having two, each rear boss that connects is provided with rear axis hole and the load flange along rear luggage carrier horizontal direction evagination；
Boss and a corresponding connector is connected by being rotationally connected through the bearing pin of rear axis hole and the second pivoted hole after each；Load flange
Along with rear connection boss is during the second pivoted hole rotates, the gathering load-carrying surface of connector can be connected to and launch load
On face, and then band follower link rotates；Coupling mechanism joins before including being arranged on two of the left and right sides end of front luggage carrier rear end
Extension bar, the location wheel being fixedly installed on each front coupling bar, join after be arranged on rear luggage carrier front end two of left and right sides end
Extension bar, be fixedly installed on each rear coupling bar couple flange, run through coupling bar after two and can move back and forth in left-right direction
Axostylus axostyle, two be fixedly installed on axostylus axostyle annular gear platform, for for axostylus axostyle provide reseting elasticity screw thread spring and for
It is rotationally connected each rear coupling bar and the attachment bolt assembly of a corresponding location wheel；The edge of each location wheel is provided with in center pair
Two the arc shaped locating notches claimed, each annular gear platform, during moving back and forth along with axostylus axostyle, embeds or removes corresponding one
In individual locating notch；Described front frame assembly and Rear frame component can overlap after attachment bolt assembly rotates 180 degree；Before described
Chassis assembly includes front luggage carrier, two front wheel assemblies, is arranged on the front apron of front luggage carrier front end and is arranged on front apron
On pull bar；The left and right sides end of front luggage carrier front end is respectively provided with a front sliding column prominent forward, and each front sliding column is provided with ring
Shape front limit gear platform, the front end of each front limit gear platform is provided with multiple front limit teeth groove；The front end of each front sliding column is provided with front pin-and-hole；Respectively
Front wheel assemblies includes having the front vehicle wheel that the front wheel carrier of anterior cannula, front torsion spring and rotation are arranged on front wheel carrier；Each anterior cannula
Rear end be provided with the front limit double wedge matched with each front limit teeth groove；Anterior cannula is set on a corresponding front sliding column, front torsion
Spring is set on corresponding front sliding column, and within being positioned at anterior cannula；Front apron connects boss before being provided with two, each front connection is convex
Platform draws bearing surface and front expansion bearing surface in before being provided with front-axle hole, front gathering bearing surface, front expansion bearing surface and connecting
Front arc transition face；The central axis of front-axle hole abuts with front gathering in more than this central axis with distance a of front expansion bearing surface
Distance b in face；Boss is connected by being rotationally connected through the bearing pin of front-axle hole and a corresponding front pin-and-hole with front sliding column before each；Respectively
Front expansion bearing surface is parallel to front apron place plane, and each bearing surface that draws in is perpendicular to front apron place plane.
The present invention in use, drives the rotation of outer connecting connector and self rotational angle spacing by load flange,
And realize folding, effectively reduce entirety and take up room, consequently facilitating carry and deposit.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention；
Fig. 2 is that the Four-wheel foldable trailer using backboard shown in Fig. 1 to make a kind of stereochemical structure when being in deployed condition is shown
It is intended to；
Fig. 3 is a kind of perspective view of front frame assembly in trailer shown in Fig. 2；
Fig. 4 is a kind of side view of front frame assembly shown in Fig. 3；
Fig. 5 is a kind of side view of front apron in front frame assembly shown in 3；
Fig. 6 is a kind of explosive view of front frame assembly shown in Fig. 3；
Fig. 7 is a kind of explosive view when another angle is observed of front frame assembly shown in Fig. 3；
Fig. 8 is a kind of perspective view of Rear frame component in trailer shown in Fig. 2；
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. 2；
Figure 14 is a kind of perspective view of backboard in trailer shown in Figure 13；
Trailer shown in Figure 15 Fig. 2 is in a kind of perspective view during preliminary folded state；
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；
A kind of structural representation of coupling mechanism in trailer shown in Figure 18 Fig. 2；
Trailer shown in Figure 19 Fig. 2 is in a kind of perspective view during completely folded state；
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 backboard for folding trailer, as shown in Figure 1, and the left and right sides bottom backboard 23 plate body
End connects boss 231 after being respectively provided with one, each rear boss that connects is provided with rear axis hole 232 and along rear luggage carrier horizontal direction evagination
Load flange 233.
(application examples)
Should use-case be a kind of Four-wheel foldable trailer, as shown in Fig. 2 to Figure 20, including front frame assembly 1, Rear frame component 2
With the coupling mechanism 3 for coupling front frame assembly and Rear frame component.
Should see that Fig. 2 to Figure 12, described front frame assembly include front loading by use-case concrete structure when being in deployed condition
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 connects boss 131 before being provided with two, each front boss that connects is provided with front-axle hole 132, front gathering bearing surface
133, bearing surface and the front arc transition face 135 of front expansion bearing surface are drawn in before front expansion bearing surface 134 and connection；See Fig. 5
Shown in, distance a of the central axis of front-axle hole and front expansion bearing surface is more than the distance of this central axis with front gathering bearing surface
b；Boss is connected by being rotationally connected through the bearing pin 100 of front-axle hole and a corresponding front pin-and-hole with front sliding column before each；Exhibition before each
Opening bearing surface and be parallel to front apron place 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 is provided with the first pivoted hole 241, rear gathering bearing surface 242, rear expansion bearing surface 243 and connects
Rear gathering bearing surface and the rear arc transition face 244 of rear expansion bearing surface；Each connector with corresponding one after traveller by through
The bearing pin 100 of the first pivoted hole and rear pin-and-hole 214 is rotationally connected, the central axis of the first pivoted hole and rear expansion bearing surface away from
From the distance more than this central axis Yu rear gathering bearing surface；Launch bearing surface after each and be parallel to backboard place plane, each after
Draw bearing surface in and be perpendicular to backboard place plane；The rear end of each connector is provided with the second pivot for being rotationally connected with backboard
Connect 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 first pivoted hole
Side, launch load-carrying surface be positioned at second pivoted hole side close to the first pivoted hole；
Each rear wheel assemblies includes that having the rear wheel frame 222 of rear sleeve 221, rear torsion spring 223 and rotation is arranged on rear wheel frame
Rear wheel 224；The front end of each rear sleeve is provided with the rear spacing double wedge 225 matched with each rear spacing teeth groove；Rear sleeve is set in
After corresponding one on traveller, rear torsion spring set be located at corresponding after on traveller, and within being positioned at rear sleeve；
Backboard connects boss 231 after being provided with two, each rear boss that connects is provided with rear axis hole 232 and along rear luggage carrier laterally side
Cambered outwards load flange 233；Boss and a corresponding connector is connected by through rear axis hole and the second pivoted hole after each
Bearing pin 100 is rotationally connected；Load flange, along with rear connection boss is during the second pivoted hole rotates, can be connected to connect
In the gathering load-carrying surface of part and expansion load-carrying surface, and then band follower link 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. 2 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 134 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. 2, 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. 2 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. 2, 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. be easy to the Four-wheel foldable trailer deposited for one kind, it is characterised in that: include front frame assembly, Rear frame component and for
Couple front frame assembly and the coupling mechanism of Rear frame component；Rear frame component includes rear luggage carrier, two rear wheel assemblies, sets
Put the backboard in rear luggage carrier rear end and for connecting two connectors of backboard and rear luggage carrier；Rear luggage carrier rear end
Left and right sides end be respectively provided with a rearwardly projecting rear traveller, each rear traveller is provided with limiting block platform after annular, each after the most spacing
The rear end of gear platform is provided with 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 first
Pivoted hole, draw bearing surface in afterwards, launch bearing surface and connect afterwards after draw bearing surface and the rear rear arc mistake launching bearing surface in
Cross face；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 first pivot
Connect the central axis in hole with the distance of rear expansion bearing surface more than this central axis and the distance of rear gathering bearing surface；Launch after each
Bearing surface is parallel to backboard place plane, and each rear bearing surface that draws in is perpendicular to backboard place plane；The rear end of each connector
It is provided with the second pivoted hole for being rotationally connected with backboard, draws load-carrying surface in and launch load-carrying surface, draw load-carrying surface in and be positioned at the
Two pivoted holes, away from the side of the first pivoted hole, launch load-carrying surface and are positioned at second pivoted hole side close to the first pivoted hole；Respectively
Rear wheel assemblies includes having the rear wheel that the rear wheel frame of rear sleeve, rear torsion spring and rotation are arranged on rear wheel frame；Each rear sleeve
Front end be provided with and be each after the rear spacing double wedge that matches of 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 after being provided with two, each after connect boss
It is provided with rear axis hole and the load flange along rear luggage carrier horizontal direction evagination；Connect boss after each and a corresponding connector leads to
Cross the bearing pin through rear axis hole and the second pivoted hole to be rotationally connected；Load flange is turning around the second pivoted hole along with rear connection boss
During Dong, the gathering load-carrying surface of connector can be connected to and launch in load-carrying surface, and then band follower link rotates；Jack connection
Structure includes being arranged on two front coupling bars of the left and right sides end of front luggage carrier rear end, being fixedly installed on determining on each front coupling bar
Coupling bar after position wheel, be arranged on rear luggage carrier front end two of left and right sides end, the connection being fixedly installed on each rear coupling bar
Connect flange, two annulars running through coupling bar after two axostylus axostyle that can move back and forth in left-right direction, being fixedly installed on axostylus axostyle
Gear platform, for provide for axostylus axostyle the screw thread spring and being used for of reseting elasticity be rotationally connected each rear coupling bar and corresponding one fixed
The attachment bolt assembly of position wheel；The edge of each location wheel is provided with two the arc shaped locating notches being centrosymmetric, each annular
Gear platform, during moving back and forth along with axostylus axostyle, embeds or removes in a corresponding locating notch；Described front frame assembly and
Rear frame component can overlap after attachment bolt assembly rotates 180 degree；Described front frame assembly includes front luggage carrier, two front trucks
Wheel assembly, the front apron being arranged on front luggage carrier front end and the pull bar being arranged on front apron；The left and right two of front luggage carrier front end
Side is respectively provided with a front sliding column prominent forward, and each front sliding column is provided with annular front limit gear platform, before each front limit gear platform
End is provided with multiple front limit teeth groove；The front end of each front sliding column is provided with front pin-and-hole；Before each front wheel assemblies includes having anterior cannula
The front vehicle wheel that wheel carrier, front torsion spring and rotation are arranged on front wheel carrier；The rear end of each anterior cannula is provided with and matches with each front limit teeth groove
The front limit double wedge closed；Anterior cannula is set on a corresponding front sliding column, and front torsion spring set is located on corresponding front sliding column, and is positioned at
Within anterior cannula；Front apron be provided with two before connect boss, each before connect boss be provided with front-axle hole, front gathering bearing surface,
Bearing surface and the front arc transition face of front expansion bearing surface is drawn in before front expansion bearing surface and connection；The central shaft of front-axle hole
Distance a of line and front expansion bearing surface is more than distance b of this central axis with front gathering bearing surface；Boss is connected by wearing before each
The bearing pin crossing 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 place
Plane, each bearing surface that draws in is perpendicular to front apron place plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161667.9A CN105966432A (en) | 2013-08-27 | 2013-08-27 | Four-wheel folding trailer convenient to store |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161667.9A CN105966432A (en) | 2013-08-27 | 2013-08-27 | Four-wheel folding trailer convenient to store |
| CN201310378811.0A CN103407469B (en) | 2013-08-27 | 2013-08-27 | For the backboard of folding trailer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378811.0A Division CN103407469B (en) | 2013-08-27 | 2013-08-27 | For the backboard of folding trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105966432A true CN105966432A (en) | 2016-09-28 |
Family
ID=49600533
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378811.0A Active CN103407469B (en) | 2013-08-27 | 2013-08-27 | For the backboard of folding trailer |
| CN201610161667.9A Withdrawn CN105966432A (en) | 2013-08-27 | 2013-08-27 | Four-wheel folding trailer convenient to store |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378811.0A Active CN103407469B (en) | 2013-08-27 | 2013-08-27 | For the backboard of folding trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103407469B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10974751B2 (en) | 2016-04-29 | 2021-04-13 | Out Of The Box Concepts, Llc | Folding cart |
| US11027411B2 (en) | 2018-10-24 | 2021-06-08 | Tti (Macao Commercial Offshore) Limited | Saw stand |
| US11890744B2 (en) | 2020-07-31 | 2024-02-06 | Techtronic Cordless Gp | Workbench-hand truck assembly |
| CN114379922B (en) * | 2020-10-19 | 2023-05-09 | 上海宝信软件股份有限公司 | Folding strapping collecting groove and steel coil strapping collecting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB112836A (en) * | 1914-09-14 | 1918-01-31 | Harold Wade | Improvements in or relating to Elevating Trucks. |
| FR2567470A1 (en) * | 1984-07-12 | 1986-01-17 | Ampafrance | Folding trolley |
| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| CN2166052Y (en) * | 1993-05-07 | 1994-05-25 | 拱祺兴业有限公司 | Hand-cart |
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer vehicle |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161519Y (en) * | 1993-05-06 | 1994-04-13 | 王家路 | Folding small shop truck for car overhaul |
| US5433566A (en) * | 1993-07-26 | 1995-07-18 | Bradley; Douglas B. | Tailgate-mounted stabilizing apparatus |
| US7973773B2 (en) * | 1995-06-29 | 2011-07-05 | Pryor Timothy R | Multipoint, virtual control, and force based touch screen applications |
| US6758514B1 (en) * | 2002-08-23 | 2004-07-06 | Charles D. Walkden | Folding sidewall assembly for truck beds |
| CN201046713Y (en) * | 2007-04-26 | 2008-04-16 | 煜益实业股份有限公司 | Handle collapsible push-car structure |
| CN201261477Y (en) * | 2008-09-16 | 2009-06-24 | 保定天威集团有限公司 | Foldable flat car for conveying material |
| CN201362272Y (en) * | 2009-03-13 | 2009-12-16 | 简世坤 | Dual-purpose folding vehicle |
| CN203063996U (en) * | 2013-02-01 | 2013-07-17 | 江苏冠宇机械设备制造有限公司 | Trolley for transporting body bracket and body bracket clamping grooves used on trolley |
| TWI663674B (en) * | 2017-07-25 | 2019-06-21 | 漢民科技股份有限公司 | Assembly of chamber lid and ceiling for semiconductor processes and film deposition apparatus |
-
2013
- 2013-08-27 CN CN201310378811.0A patent/CN103407469B/en active Active
- 2013-08-27 CN CN201610161667.9A patent/CN105966432A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB112836A (en) * | 1914-09-14 | 1918-01-31 | Harold Wade | Improvements in or relating to Elevating Trucks. |
| FR2567470A1 (en) * | 1984-07-12 | 1986-01-17 | Ampafrance | Folding trolley |
| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| CN2166052Y (en) * | 1993-05-07 | 1994-05-25 | 拱祺兴业有限公司 | Hand-cart |
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer vehicle |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103407469A (en) | 2013-11-27 |
| CN103407469B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103407471B (en) | Modular folding trailer | |
| CN105946925A (en) | Four-wheel folding trailer | |
| CN105291691A (en) | Easily-carried four-wheeled folding trailer | |
| CN105966432A (en) | Four-wheel folding trailer convenient to store | |
| CN105905144A (en) | Portable four-wheel folding trailer | |
| CN106428148A (en) | Rear frame assembly for combined type folding trailer | |
| CN106114570A (en) | A kind of folding trailer | |
| CN106143556A (en) | A kind of Rear frame component for folding trailer with rotatable backboard | |
| CN106741058A (en) | A kind of Four-wheel foldable trailer | |
| CN105774868A (en) | Four-wheel folding trailer | |
| CN105752132A (en) | Four-wheeled folding trailer convenient to store | |
| CN105752133A (en) | Four-wheeled folding trailer | |
| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160928 |
|
| WW01 | Invention patent application withdrawn after publication |