CN105905141A - Easy-to-carry four-wheel folding trailer - Google Patents
Easy-to-carry four-wheel folding trailer Download PDFInfo
- Publication number
- CN105905141A CN105905141A CN201610114555.8A CN201610114555A CN105905141A CN 105905141 A CN105905141 A CN 105905141A CN 201610114555 A CN201610114555 A CN 201610114555A CN 105905141 A CN105905141 A CN 105905141A
- Authority
- CN
- China
- Prior art keywords
- bearing surface
- wheel
- hole
- backboard
- luggage carrier
- 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- Withdrawn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
- B62B3/022—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible folding down the body to the wheel carriage or by retracting projecting parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- 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
- B62B1/042—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 foldable
-
- 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
- B62B2206/00—Adjustable or convertible hand-propelled vehicles or sledges
- B62B2206/006—Convertible hand-propelled vehicles or sledges
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 an easy-to-carry four-wheel folding trailer comprising a front frame assembly, a rear frame assembly, and a coupling mechanism for coupling the front frame assembly and the rear frame assembly. The front frame assembly comprises a front carrier, two front wheel assemblies, a front baffle arranged on the front end of the front carrier, and a pull rod arranged on the front baffle. The portable four-wheel folding trailer is characterized in that one end of the front baffle close to a front connecting boss is provided with a rotational connection part having a pin hole, and the other end of the front baffle away from the front connecting boss is provided with two protruding clamp plates; and the bottom of the pull rod is rotationally connected with the rotational connection part of the front baffle, and the middle of the pull rod can be clamped and connected between the two clamp plates. The easy-to-carry four-wheel folding trailer has the advantage of multiple purposes and multiple functions.
Description
Technical field
The present invention relates to trailer technical field, particularly relate to a kind of Four-wheel foldable trailer being easy to carry about with one.
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 relatively reasonable in structure Four-wheel foldable trailer being easy to carry about with one.
The technical scheme realizing the object of the invention is: a kind of Four-wheel foldable trailer being easy to carry about with one, including front frame group
Part, Rear frame component and for coupling the coupling mechanism of front frame assembly and Rear frame component；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；Its feature exists
Be provided with the rotating junction with pin-and-hole close to one end of front connection boss in: front apron, front apron is away from front connection boss
One end is provided with two clamps of protrusion；The bottom of pull bar is rotationally connected with the rotating junction of front apron, and the middle part of pull bar can clamping connection
Between two clamps；Rear frame component includes rear luggage carrier, two rear wheel assemblies, is arranged on the backstop of rear luggage carrier rear end
Plate and for connecting two connectors of backboard and rear luggage carrier；The left and right sides end of rear luggage carrier rear end is respectively provided with one
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 is provided with multiple rear limit
Position 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, after
Bearing surface and the rear rear arc transition face launching bearing surface is drawn in after launching bearing surface and connecting；Each connector and corresponding one
Individual rear 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 and rear expansion
The distance of bearing surface is more than the distance of this central axis with rear gathering bearing surface；Launch 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 is provided with for rotating even with backboard
The second pivoted hole, gathering load-carrying surface and the expansion load-carrying surface connect, draws load-carrying surface in and is 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 having rear enclosure
The rear wheel that the rear wheel frame of pipe, rear torsion spring and rotation are arranged on rear wheel frame；The front end of each rear sleeve is provided with and each rear limiting tooth
The rear spacing double wedge that groove matches；Rear sleeve be set in corresponding one after on traveller, rear torsion spring set be located at corresponding after on traveller,
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 and along rear loading
The load flange of frame horizontal direction evagination；Boss and a corresponding connector is connected by through rear axis hole and the second pivot joint after each
The bearing pin in hole is rotationally connected；Load flange along with rear connection boss around second pivoted hole rotate during, can the company of being connected to
In the gathering load-carrying surface of fitting and expansion load-carrying surface, and then band follower link rotates；This trailer is converted to tentatively from deployed condition
The method of folded state is as follows: promote forward backboard, holds owing to the load flange on backboard is connected to the gathering of connector
On power face, thus band follower link rotates forward around the first pivoted hole, until drawing bearing surface afterwards in be perpendicular to rear luggage carrier place
Plane is also connected on the rear end face of rear sleeve, owing to the central axis of the first pivoted hole is more than with the distance of rear expansion bearing surface
This central axis and the distance of rear gathering bearing surface so that rear sleeve, can be at the bullet of rear torsion spring 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, thus rear sleeve can under the twisting force of rear torsion spring, drive rear wheel frame and
Rear wheel is connected on the basal surface of rear luggage carrier after turning an angle；External force promotes front apron backward, connects convex before driving
Platform rotates backward around front-axle hole, until front gathering bearing surface is connected on the front end face of anterior cannula, due to 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 and front gathering bearing surface, so at backboard backward
In rotation process, anterior cannula can sliding certain distance forward so that front limit double wedge removes from corresponding front limit teeth groove, by
Anterior cannula is not had restriction rotating effect in front limit teeth groove, so anterior cannula can carry under the twisting force of front torsion spring
Dynamic front wheel carrier and front vehicle wheel turn an angle on the basal surface that can be connected to front luggage carrier.
The present invention in use, both can with Rear frame component with the use of, combination formed Four-wheel foldable trailer, it is possible to
To be used alone, as the collapsible luggage trolley of two-wheeled, the advantage with multi-purpose.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention；
Fig. 2 is a kind of perspective view when observing from another angle of front frame assembly shown in Fig. 1；
Fig. 3 is a kind of side view of front frame assembly shown in Fig. 1；
Fig. 4 is a kind of side view of front apron in front frame assembly shown in Fig. 1；
Fig. 5 is a kind of explosive view of front frame assembly shown in Fig. 1；
Fig. 6 is a kind of explosive view of front frame assembly shown in Fig. 2；
Fig. 7 is the Four-wheel foldable trailer using front frame assembly shown in Fig. 1 to make a kind of three-dimensional knot when being in deployed condition
Structure schematic diagram；
Fig. 8 is a kind of perspective view of Rear frame component in trailer shown in Fig. 7；
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. 7；
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. 7；
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. 7；
Figure 19 is a kind of perspective view when being in completely folded state of the trailer shown in Fig. 7；
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)
Fig. 1 to Fig. 6 shows a kind of detailed description of the invention of the present invention, and wherein, Fig. 1 is a kind of stereochemical structure signal of the present invention
Figure；Fig. 2 is a kind of perspective view when observing from another angle of front frame assembly shown in Fig. 1；Fig. 3 is front truck shown in Fig. 1
A kind of side view of frame assembly；Fig. 4 is a kind of side view of front apron in front frame assembly shown in Fig. 1；Fig. 5 be shown in Fig. 1 before
A kind of explosive view of chassis assembly；Fig. 6 is a kind of explosive view of front frame assembly shown in Fig. 2.
The present embodiment is a kind of front frame assembly for Four-wheel foldable trailer, as shown in Fig. 1 to Fig. 6, front frame group
Part 1 includes 11, two front wheel assemblies 12 of front luggage carrier, is arranged on the front apron 13 of front luggage carrier front end and is arranged on front
Pull bar 14 on plate；Front apron is provided with the rotating junction 136 with pin-and-hole close to one end of front connection boss, front apron away from
One end of front connection boss is provided with two clamps 137 of protrusion；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.
The rear end of front frame assembly is provided with coupling mechanism 3；This coupling mechanism includes the left and right being arranged on front luggage carrier rear end
Two front coupling bars 31 of two side ends, the location wheel 32 being fixedly installed on each front coupling bar and the connection through location wheel centre bore
Connecting bolt assembly 38；The edge of each location wheel is provided with two the arc shaped locating notches 321 being centrosymmetric.
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 is provided with
Annular front limit 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
Front vehicle wheel 124 on frame；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
Being set on a corresponding front sliding column, front torsion spring set is located on corresponding front sliding column, and within being positioned at anterior cannula；Set on front apron
Connecting boss 131 before having two, each front boss that connects is provided with front-axle hole 132, front gathering bearing surface 133, front expansion bearing surface
134 and draw bearing surface and the front arc transition face 135 of front expansion bearing surface in before connecting；The central axis of front-axle hole is with front
Launch the distance a distance more than this central axis with front gathering bearing surface b of bearing surface；Boss is connected by through front axle before each
The bearing pin 100 of hole and a corresponding front pin-and-hole is rotationally connected with front sliding column；Each front expansion bearing surface is parallel to front apron place puts down
Face, each bearing surface that draws in is perpendicular to front apron place plane.
(application examples 1)
Fig. 7 to Figure 20 shows a kind of concrete application mode of above-described embodiment 1, and wherein Fig. 7 is to use front frame group shown in Fig. 1
The Four-wheel foldable trailer that part is made is in a kind of perspective view during deployed condition；Fig. 8 be in trailer shown in Fig. 7 after
A kind of perspective view of chassis assembly；Fig. 9 is a kind of solid when another angle is observed of the Rear frame component shown in Fig. 8
Structural representation；Figure 10 is a kind of side view of Rear frame component shown in Fig. 8；Figure 11 is the one of Rear frame component shown in Fig. 8
Explosive view；Figure 12 is a kind of explosive view of Rear frame component shown in Fig. 9；When Figure 13 is that shown in Fig. 7, trailer is in flat
A kind of perspective view；Figure 14 is a kind of perspective view of backboard in trailer shown in Figure 13；Figure 15 is Fig. 7 institute
Show a kind of perspective view when trailer is in preliminary folded state；Figure 16 is backboard and the one of connector in Figure 15
Explosive view；Figure 17 is a kind of side view of trailer shown in Figure 15；Figure 18 is that a kind of structure of coupling mechanism in trailer shown in Fig. 7 is shown
It is intended to；Figure 19 is a kind of perspective view when being in completely folded state of the trailer shown in Fig. 7；Figure 20 is to drag shown in Figure 19
A kind of side view of car.
Should use-case be to use a kind of Four-wheel foldable trailer of making of above-described embodiment 1, including front frame assembly 1, after
Chassis assembly 2 and for coupling the coupling mechanism 3 of front frame assembly and Rear frame component.
Should see that Fig. 7 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 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 4, 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. 7 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. 7, 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. 7 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. 7, 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. the Four-wheel foldable trailer being easy to carry about with one, including front frame assembly, Rear frame component and for coupling front frame
Assembly and the coupling mechanism of Rear frame component；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；It is characterized in that: front apron sets close to one end of front connection boss
Having 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 bottom of pull bar
Be rotationally connected with the rotating junction of front apron, the middle part of pull bar can clamping connection between two clamps；Rear frame component includes rear bearing
Thing frame, two rear wheel assemblies, it is arranged on the backboard of rear luggage carrier rear end and for connecting backboard and the two of rear luggage carrier
Individual connector；The left and right sides end of rear luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller, and each rear traveller is provided with ring
Limiting block platform after shape, 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；Respectively
The front end of 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 after
Launch the rear arc transition face of bearing surface；Each connector with corresponding one after traveller by through the first pivoted hole and rear pin-and-hole
Bearing pin is rotationally connected, and the central axis of the first pivoted hole supports with rear gathering more than this central axis with the distance of rear expansion bearing surface
The distance of junction；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 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；The method that this trailer is converted to preliminary folded state from deployed condition is as follows: promote forward backboard, by
Load flange on backboard is connected in the gathering load-carrying surface of connector, thus band follower link is around the first pivoted hole forward
Rotate, be perpendicular to rear luggage carrier place plane and be connected on the rear end face of rear sleeve until drawing bearing surface afterwards in, due to 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 so that after
Sleeve pipe, can be under the elastic force effect of rear torsion spring in the rotation process of connector, sliding certain distance backward so that rear limit convex
Tooth removes spacing teeth groove after corresponding, no longer has restriction rotating effect to rear sleeve due to rear spacing teeth groove, after institute
Sleeve pipe can drive rear wheel frame and rear wheel to be connected to the end of rear luggage carrier after turning an angle under the twisting force of rear torsion spring
On surface；External force promotes front apron backward, connects boss and rotate backward around front-axle hole before driving, until front gathering bearing surface abuts
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114555.8A CN105905141A (en) | 2013-08-27 | 2013-08-27 | Easy-to-carry four-wheel folding trailer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310379692.0A CN103407472B (en) | 2013-08-27 | 2013-08-27 | Four-wheel foldable trailer |
| CN201610114555.8A CN105905141A (en) | 2013-08-27 | 2013-08-27 | Easy-to-carry four-wheel folding trailer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310379692.0A Division CN103407472B (en) | 2013-08-27 | 2013-08-27 | Four-wheel foldable trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105905141A true CN105905141A (en) | 2016-08-31 |
Family
ID=49600536
Family Applications (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610116441.7A Withdrawn CN106394630A (en) | 2013-08-27 | 2013-08-27 | Four-wheeled foldable trailer |
| CN201610115306.0A Pending CN105905142A (en) | 2013-08-27 | 2013-08-27 | Foldable four-wheel folding trailer |
| CN201610114932.8A Withdrawn CN105905136A (en) | 2013-08-27 | 2013-08-27 | Four-wheel folding trailer with coupling mechanism |
| CN201610115776.7A Withdrawn CN105905143A (en) | 2013-08-27 | 2013-08-27 | Portable four-wheel folding trailer |
| CN201610116443.6A Withdrawn CN106394631A (en) | 2013-08-27 | 2013-08-27 | Four-wheeled foldable trailer with coupling mechanism |
| CN201310379692.0A Active CN103407472B (en) | 2013-08-27 | 2013-08-27 | Four-wheel foldable trailer |
| CN201610115778.6A Withdrawn CN105905144A (en) | 2013-08-27 | 2013-08-27 | Portable four-wheel folding trailer |
| CN201610114555.8A Withdrawn CN105905141A (en) | 2013-08-27 | 2013-08-27 | Easy-to-carry four-wheel folding trailer |
| CN201610115800.7A Pending CN105905145A (en) | 2013-08-27 | 2013-08-27 | Easy-to-carry four-wheel folding trailer |
Family Applications Before (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610116441.7A Withdrawn CN106394630A (en) | 2013-08-27 | 2013-08-27 | Four-wheeled foldable trailer |
| CN201610115306.0A Pending CN105905142A (en) | 2013-08-27 | 2013-08-27 | Foldable four-wheel folding trailer |
| CN201610114932.8A Withdrawn CN105905136A (en) | 2013-08-27 | 2013-08-27 | Four-wheel folding trailer with coupling mechanism |
| CN201610115776.7A Withdrawn CN105905143A (en) | 2013-08-27 | 2013-08-27 | Portable four-wheel folding trailer |
| CN201610116443.6A Withdrawn CN106394631A (en) | 2013-08-27 | 2013-08-27 | Four-wheeled foldable trailer with coupling mechanism |
| CN201310379692.0A Active CN103407472B (en) | 2013-08-27 | 2013-08-27 | Four-wheel foldable trailer |
| CN201610115778.6A Withdrawn CN105905144A (en) | 2013-08-27 | 2013-08-27 | Portable four-wheel folding trailer |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610115800.7A Pending CN105905145A (en) | 2013-08-27 | 2013-08-27 | Easy-to-carry four-wheel folding trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (9) | CN106394630A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235724B (en) * | 2015-11-25 | 2018-01-02 | 国家电网公司 | A kind of portable multi-function power equipment transport pushing cart |
| US11027411B2 (en) | 2018-10-24 | 2021-06-08 | Tti (Macao Commercial Offshore) Limited | Saw stand |
| CN210478742U (en) * | 2019-07-15 | 2020-05-08 | 闵航 | Folding tool vehicle |
| US11890744B2 (en) | 2020-07-31 | 2024-02-06 | Techtronic Cordless Gp | Workbench-hand truck assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer vehicle |
| TWM314145U (en) * | 2006-10-19 | 2007-06-21 | Yee Shiuann Entpr Co Ltd | Improved structure for barrow |
| CN201362272Y (en) * | 2009-03-13 | 2009-12-16 | 简世坤 | Dual-purpose folding vehicle |
| CN201659997U (en) * | 2010-03-19 | 2010-12-01 | 蓝金义 | Folding pusher |
| KR20120000007A (en) * | 2010-06-26 | 2012-01-03 | 엘지전자 주식회사 | Network system |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120000001A (en) * | 2010-06-26 | 2012-01-03 | 김종숙 | A portable folding cart |
| US20130026738A1 (en) * | 2011-07-29 | 2013-01-31 | Gordon Liao | Golf cart folding device |
| CN203094124U (en) * | 2012-12-25 | 2013-07-31 | 浙江泰普森休闲用品有限公司 | Sand beach cart |
-
2013
- 2013-08-27 CN CN201610116441.7A patent/CN106394630A/en not_active Withdrawn
- 2013-08-27 CN CN201610115306.0A patent/CN105905142A/en active Pending
- 2013-08-27 CN CN201610114932.8A patent/CN105905136A/en not_active Withdrawn
- 2013-08-27 CN CN201610115776.7A patent/CN105905143A/en not_active Withdrawn
- 2013-08-27 CN CN201610116443.6A patent/CN106394631A/en not_active Withdrawn
- 2013-08-27 CN CN201310379692.0A patent/CN103407472B/en active Active
- 2013-08-27 CN CN201610115778.6A patent/CN105905144A/en not_active Withdrawn
- 2013-08-27 CN CN201610114555.8A patent/CN105905141A/en not_active Withdrawn
- 2013-08-27 CN CN201610115800.7A patent/CN105905145A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer vehicle |
| TWM314145U (en) * | 2006-10-19 | 2007-06-21 | Yee Shiuann Entpr Co Ltd | Improved structure for barrow |
| CN201362272Y (en) * | 2009-03-13 | 2009-12-16 | 简世坤 | Dual-purpose folding vehicle |
| CN201659997U (en) * | 2010-03-19 | 2010-12-01 | 蓝金义 | Folding pusher |
| KR20120000007A (en) * | 2010-06-26 | 2012-01-03 | 엘지전자 주식회사 | Network system |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105905144A (en) | 2016-08-31 |
| CN103407472B (en) | 2016-03-23 |
| CN105905136A (en) | 2016-08-31 |
| CN105905142A (en) | 2016-08-31 |
| CN105905145A (en) | 2016-08-31 |
| CN106394630A (en) | 2017-02-15 |
| CN105905143A (en) | 2016-08-31 |
| CN103407472A (en) | 2013-11-27 |
| CN106394631A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103407471B (en) | Modular folding trailer | |
| CN105946924A (en) | Four-wheel folding trailer | |
| CN105905141A (en) | Easy-to-carry four-wheel folding trailer | |
| CN105966432A (en) | Four-wheel folding trailer convenient to store | |
| 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 | |
| CN103407475B (en) | Four-wheel foldable trailer | |
| CN105774868A (en) | Four-wheel folding trailer | |
| CN105711628A (en) | Foldable four-wheel folding trailer | |
| CN105752132A (en) | Four-wheeled folding trailer convenient to store | |
| CN105752133A (en) | Four-wheeled 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160831 |