CN106143556A - A kind of Rear frame component for folding trailer with rotatable backboard - Google Patents
A kind of Rear frame component for folding trailer with rotatable backboard Download PDFInfo
- Publication number
- CN106143556A CN106143556A CN201510812867.1A CN201510812867A CN106143556A CN 106143556 A CN106143556 A CN 106143556A CN 201510812867 A CN201510812867 A CN 201510812867A CN 106143556 A CN106143556 A CN 106143556A
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- China
- Prior art keywords
- backboard
- load
- bearing surface
- hole
- connector
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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
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
- B62B1/20—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible
-
- 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
Abstract
The invention discloses a kind of Rear frame component for folding trailer with rotatable backboard, Rear frame component includes rear luggage carrier, rear wheel assemblies, backboard and connector；The front end of each connector is provided with the first pivoted hole, afterwards gathering bearing surface, rear expansion bearing surface and rear arc transition face；The central axis of the first pivoted hole is more than the distance of this central axis and rear gathering bearing surface with the distance of rear expansion bearing surface；The rear end of each connector is provided with the second pivoted hole, draws load-carrying surface in and launch load-carrying surface；Backboard connects boss after being provided with, each rear boss that connects is provided with rear axis hole and load flange；Load flange, during rotating, can be connected in gathering load-carrying surface and the expansion load-carrying surface of connector, and then band follower link rotates.The present invention both can be with front frame assembly with the use of combination forms Four-wheel foldable trailer, it is also possible to be used alone, as the Rear frame component for Four-wheel foldable trailer of two-wheeled folding trailer.
Description
The application is filing date " on 08 27th, 2013 ", Application No. " 2013103784054 ", entitled " is used for
The divisional application of the application for a patent for invention of the Rear frame component of folding trailer ".
Technical field
The present invention relates to trailer technical field, particularly relate to a kind of have rotatable backboard for folding trailer
Rear frame component.
Background technology
People are commonly used to four-wheel trailer when shopping carrying article, can save strength for user, but four-wheel at present
Trailer volume is generally bigger, it is impossible to folds and draws in, inconvenient to carry, takes up room also very big when depositing.
Patent document CN202186404U discloses a kind of foldable luggage trolley, and this car includes telescopic vehicle frame, its underpart
Being provided with the cylindrical pull bar being hinged with luggage truck weight tray, described cylindrical 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 be connected with vehicle frame side be provided with described weight tray fix the wheel being connected erect
Direct Travel control piece；Wheel stand has the second cannelure with described cylindrical 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；Pull bar is vertically arranged in the second cannelure, and the shaft hole sleeve of 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 forms pushing tow to the second cannelure, 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 document, 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.
Content of the invention
It is an object of the invention to provide a kind of Rear frame component for folding trailer with rotatable backboard.
The technical scheme realizing the object of the invention is: a kind of rear car for folding trailer with rotatable backboard
Frame assembly, Rear frame component includes rear luggage carrier, two rear wheel assemblies, the backboard being arranged on rear luggage carrier rear end and use
In two connectors connecting backboard and rear luggage carrier；The left and right sides end of rear luggage carrier rear end is respectively provided with one and highlights backward
Rear traveller, each rear traveller is provided with limiting block platform after annular, the rear end of each rear limiting block platform be provided with multiple after spacing teeth groove；Respectively
The rear end of rear traveller is provided with rear pin-and-hole；The front end of each connector is provided with the first pivoted hole, afterwards gathering bearing surface, rear expansion abuts
Bearing surface and the rear rear arc transition face launching bearing surface is drawn in behind face and connection；Each connector with corresponding one after traveller
Connected by rotating 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 bearing surface
Distance is more than the distance of this central axis and rear gathering bearing surface；The rear end of each connector is provided with and is connected for rotating with backboard
The second pivoted hole, draw in load-carrying surface and launch load-carrying surface, draw in load-carrying surface be positioned at the second pivoted hole away from the first pivoted hole
Side, launches load-carrying surface and is positioned at the second pivoted hole close to the side of the first pivoted hole；Each rear wheel assemblies includes having rear sleeve
Rear wheel frame, the rear wheel that is arranged on rear wheel frame of rear torsion spring and rotation；The front end of each rear sleeve is provided with and each rear spacing teeth groove
The rear spacing double wedge matching；Rear sleeve be set in corresponding one after on traveller, rear torsion spring set be located at corresponding after on traveller, and
It is positioned within rear sleeve；Backboard connects boss after being provided with two, each rear boss that connects is provided with rear axis hole and along rear luggage carrier
The load flange of horizontal direction evagination；Boss and a corresponding connector is connected by through rear axis hole and the second pivoted hole after each
Bearing pin rotate connect；Load flange, as 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；Launch bearing surface after each and be parallel to backboard institute
In plane, each rear bearing surface that draws in is perpendicular to backboard place plane；Backboard can rotate around rear axis hole in external force, until load
Flange is connected in the expansion load-carrying surface of connector, and now backboard upper surface and the upper surface of rear luggage carrier are in same flat
Face.
The present invention in use, both can be with front frame assembly with the use of combination forms 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.
Brief description
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 for the Rear frame component shown in Fig. 1；
Fig. 3 is a kind of side view of Rear frame component shown in Fig. 1；
Fig. 4 is a kind of explosive view of Rear frame component shown in Fig. 1；
Fig. 5 is a kind of explosive view of Rear frame component shown in Fig. 2；
Fig. 6 is a kind of three-dimensional knot when being in deployed condition for the Four-wheel foldable trailer using Rear frame component shown in Fig. 1 to make
Structure schematic diagram；
Fig. 7 is a kind of perspective view of front frame assembly in trailer shown in Fig. 6；
Fig. 8 is a kind of perspective view when another angle is observed for front frame assembly shown in Fig. 7；
Fig. 9 is a kind of side view of front frame assembly shown in Fig. 7；
Figure 10 is a kind of side view of front apron in front frame assembly shown in 7；
Figure 11 is a kind of explosive view of front frame assembly shown in Fig. 7；
Figure 12 is a kind of explosive view of front frame assembly shown in Fig. 8；
Figure 13 is a kind of perspective view when being in flat for the trailer shown in Fig. 6；
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 for the trailer shown in Fig. 6；
Figure 16 is a kind of explosive view of backboard and 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. 6；
Figure 19 is a kind of perspective view when being in completely folded state for the trailer shown in Fig. 6；
Figure 20 is a kind of side view of trailer shown in Figure 19.
Being labeled as shown in accompanying drawing: front frame assembly 1, front luggage carrier 11, front sliding column 111, front limit keeps off 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, positioning 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 Rear frame component for folding trailer, as shown in Fig. 1 to Fig. 5, after Rear frame component 2 includes
The 22nd, luggage carrier the 21st, two rear wheel assemblies are arranged on the backboard 23 of rear luggage carrier rear end and for connecting backboard and rear bearing
Two connectors 24 of rack；The left and right sides end of rear luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller 211, each after
Traveller is provided with limiting block platform 212 after annular, and the rear end of each rear limiting block platform is provided with multiple rear spacing teeth groove 213；Each rear traveller
Rear end be provided with rear pin-and-hole 214；The front end of each connector is provided with the first pivoted hole the 241st, rear bearing surface that draws in and the 242nd, launches afterwards to support
Bearing surface and the rear rear arc transition face 244 launching bearing surface is drawn in after junction 243 and connection；Each connector and corresponding one
Individual rear traveller by through the first pivoted hole and rear pin-and-hole 214 bearing pin 100 rotate connect, the central axis of the first pivoted hole with
The distance of rear expansion bearing surface is more than the distance of this central axis and rear gathering bearing surface；Launch bearing surface after each and be parallel to backstop
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 backboard
Rotate the second pivoted hole connecting and the 245th, draw load-carrying surface 246 and expansion load-carrying surface 247 in, draw load-carrying surface in and be positioned at the second pivot joint
Hole away from the side of the first pivoted hole, is launched load-carrying surface and is positioned at the second pivoted hole close to the side of the first pivoted hole；Each rear wheel
Assembly includes rear wheel frame the 222nd, the rear torsion spring 223 with rear sleeve 221 and rotates the rear wheel 224 being arranged on rear wheel frame；Respectively
The front end of rear sleeve is provided with the rear spacing double wedge 225 matching with each rear spacing teeth groove；Rear sleeve is sliding after being set in corresponding one
On post, rear torsion spring set is located on corresponding rear traveller, and is positioned within rear sleeve；Backboard connects boss 231 after being provided with two,
Connect boss after each and be provided with rear axis hole 232 and the load flange 233 along rear luggage carrier horizontal direction evagination；Boss is connected after each
Connected by rotating through the bearing pin 100 of rear axis hole and the second pivoted hole with a corresponding connector；Load flange is with rear
Connection boss, during the second pivoted hole rotates, can be connected in gathering load-carrying surface and the expansion load-carrying surface of connector, enter
And carry follower link to rotate.
Backboard can rotate around rear axis hole in external force, until load flange is connected in the expansion load-carrying surface of connector, this
When backboard upper surface and rear luggage carrier upper surface be in same plane.
As shown in Figure 18, Rear frame component includes the coupling mechanism 3 for being connected with external front frame assembly；This jack connection
After structure includes being arranged on two of the left and right sides end of rear luggage carrier front end, the 33rd, coupling bar is fixedly installed on each rear coupling bar
Couple flange the 34th, run through coupling bar after two axostylus axostyle that can move back and forth in left-right direction the 35th, be fixedly installed on axostylus axostyle two
Individual annular keeps off platform 36 and for providing the screw thread spring 37 of reseting elasticity for axostylus axostyle.
The present embodiment in use, can be using axostylus axostyle as towing holding rod, using backboard as support board, thus as solely
Vertical two-wheeled folding trailer uses；Can also be with front frame assembly with the use of combination forms Four-wheel foldable trailer and uses.
In addition, the backboard in the present embodiment both can be relatively stable be in and be perpendicular to rear luggage carrier place plane, folded
It is combined on the upper surface of rear luggage carrier, turns to the three kind states consistent with rear luggage carrier place plane to rear side, thus have
Have easy-to-use, take up room less, deposit and carry advantageously advantage.
(application examples 1)
Should use-case be a kind of Four-wheel foldable trailer, as shown in Fig. 6 to Figure 20, including front frame assembly the 1st, Rear frame component 2
With the coupling mechanism 3 for coupling front frame assembly and Rear frame component.
Should see Fig. 6 to Figure 12 by concrete structure when being in deployed condition for the use-case, described front frame assembly includes front loading
The 12nd, frame the 11st, two front wheel assemblies are arranged on the front apron 13 of 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 highlighting forward, and each front sliding column is provided with limit before 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 front wheel carrier the 122nd, the front torsion spring 123 with anterior cannula 121 and rotation are 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 matching 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 is positioned within anterior cannula；Front apron is provided with two
Front connection boss 131, each before connect boss be provided with front-axle hole the 132nd, front gathering bearing surface the 133rd, front expansion bearing surface the 134th, with
And before connecting, draw the front arc transition face 135 of bearing surface and front expansion bearing surface in；As shown in Figure 10, the central axis of front-axle hole
It is more than distance b of this central axis and front gathering bearing surface with distance a of front expansion bearing surface；Each before connect boss by through
The bearing pin 100 of front-axle hole and a corresponding front pin-and-hole rotates with front sliding column and is connected；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 that the 22nd, rear luggage carrier the 21st, two rear wheel assemblies are 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 Huan Xing, 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 the 241st, rear draw in bearing surface the 242nd, rear launch bearing surface the 243rd, with
And after connecting, draw the rear arc transition face 244 of bearing surface and 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 and rotating connection, 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 and 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 and is connected for rotating with backboard
The second pivoted hole the 245th, 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 the second pivoted hole close to the side of the first pivoted hole；Each rear wheel assemblies includes
There is rear wheel frame the 222nd, the rear torsion spring 223 of rear sleeve 221 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 matching with each rear spacing teeth groove；Rear sleeve be set in corresponding one after on traveller, turn round afterwards
Spring is set on corresponding rear traveller, and is positioned within 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 connected by rotating through the bearing pin 100 of rear axis hole and the second pivoted hole；Load flange is with rear connection boss
During the second pivoted hole rotates, can be connected in gathering load-carrying surface and the expansion load-carrying surface of connector, 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 coupling mechanism 3
The 31st, individual front coupling bar is fixedly installed on positioning wheel on each front coupling bar and the 32nd, is arranged on the left and right sides end of rear luggage carrier front end
Two after the coupling bar connection flange that the 33rd, is fixedly installed on each rear coupling bar the 34th, run through two after coupling bar can be along left and right
Two annulars that the 35th, the axostylus axostyle that direction moves back and forth is fixedly installed on axostylus axostyle keep off platforms the 36th, for providing reseting elasticity for axostylus axostyle
Screw thread spring 37 and for rotating the attachment bolt assembly 38 connecting each rear coupling bar and a corresponding positioning wheel；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 with axostylus axostyle
During Dong, embed or remove in a corresponding locating notch；Described front frame assembly and Rear frame component can be around connection spiral shells
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 front one end connecting 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. 6 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 by the positioning of the embedded corresponding positioning wheel of positioning 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 there is restriction rotating effect to rear sleeve 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. 6, 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
When 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. 6 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 carry follower link to rotate 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 simultaneously connected on the rear end face of rear sleeve, is somebody's turn to do owing to the central axis of the first pivoted hole and the distance of rear expansion bearing surface are more than
Central axis and the rear distance drawing bearing surface in 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 removal 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.In addition, under deployed condition shown in Fig. 6, outward
Power promotes front apron backward, connects boss 131 and rotate backward around front-axle hole 132 before driving, until front gathering bearing surface 133 abuts
On the front end face of anterior cannula, due to front-axle hole central axis with 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.
Use-case should be in shown in the concrete structure as Figure 19 to Figure 20 of completely folded state, 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
Front luggage carrier or rear luggage carrier rotate 180 degree when both are overlapped, namely make the basal surface of front frame assembly 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.
In 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 conduct and tows holding rod,
Front luggage carrier continues as luggage carrier；But it for Rear frame component, 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, all right on the basis of the above description
Make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And these belong to
The obvious change extended out in the spirit of the present invention or change among still in protection scope of the present invention.
Claims (1)
1. having the Rear frame component for folding trailer of rotatable backboard, Rear frame component includes rear luggage carrier
(21), two rear wheel assemblies (22), be arranged on the backboard (23) of rear luggage carrier rear end and be used for connecting backboard and rear bearing
Two connectors (24) of rack；It is characterized in that: the left and right sides end of rear luggage carrier rear end be respectively provided with one rearwardly projecting
Rear traveller (211), each rear traveller is provided with limiting block platform (212) after annular, and the rear end of each rear limiting block platform is provided with multiple rear limit
Position 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),
Bearing surface and the rear backarc launching bearing surface is drawn in after rear gathering bearing surface (242), afterwards expansion bearing surface (243) and connection
Shape transition face (244)；Each connector with corresponding one after traveller by the bearing pin through the first pivoted hole and rear pin-and-hole (214)
(100) rotating connection, the central axis of the first pivoted hole is more than this central axis and rear gathering with the distance of rear expansion bearing surface
The distance of bearing surface；The rear end of each connector is provided with for rotating the second pivoted hole (245), the gathering load being connected with backboard
Face (246) and expansion load-carrying surface (247), draw load-carrying surface in and be positioned at the side away from the first pivoted hole for second pivoted hole, launch to hold
Power face is positioned at the second pivoted hole close to the side of the first pivoted hole；Each rear wheel assemblies includes the trailing wheel with rear sleeve (221)
The rear wheel (224) that frame (222), rear torsion spring (223) and rotation are arranged on rear wheel frame；The front end of each rear sleeve be provided with each after
The rear spacing double wedge (225) that 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 be positioned within rear sleeve；Backboard connects boss (231) after being provided with two, each rear boss that connects is provided with
Rear axis hole (232) and the load flange (233) along rear luggage carrier horizontal direction evagination；Boss and a corresponding connection is connected after each
Part is connected by rotating through the bearing pin (100) of rear axis hole and the second pivoted hole；Load flange is as rear connection boss is around the
During two pivoted holes rotate, can be connected in gathering load-carrying surface and the expansion load-carrying surface of connector, and then band follower link
Rotate；Launching bearing surface after each and being parallel to backboard place plane, each rear bearing surface that draws in is perpendicular to backboard place plane；After
Baffle plate can rotate around rear axis hole in external force, until load flange is connected in the expansion load-carrying surface of connector, now on backboard
Surface is in same plane with the upper surface of rear luggage carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812867.1A CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812867.1A CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201310378405.4A CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378405.4A Division CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106143556A true CN106143556A (en) | 2016-11-23 |
Family
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Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510815168.2A Withdrawn CN105523068A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly provided with connecting mechanism and used for folding trailer |
| CN201510814788.4A Withdrawn CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
| CN201310378405.4A Expired - Fee Related CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
| CN201510812867.1A Pending CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201510814746.0A Withdrawn CN105480276A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with linkage mechanism |
| CN201510815799.4A Withdrawn CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510815168.2A Withdrawn CN105523068A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly provided with connecting mechanism and used for folding trailer |
| CN201510814788.4A Withdrawn CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
| CN201310378405.4A Expired - Fee Related CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510814746.0A Withdrawn CN105480276A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with linkage mechanism |
| CN201510815799.4A Withdrawn CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
Country Status (1)
| Country | Link |
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| CN (6) | CN105523068A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741045A (en) * | 2015-11-20 | 2017-05-31 | 江苏国平油品科技有限公司 | A kind of trailer for hauling Mixer pot |
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| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| US5072958A (en) * | 1991-02-19 | 1991-12-17 | Young Horace J | Hand truck |
| CN201362272Y (en) * | 2009-03-13 | 2009-12-16 | 简世坤 | Dual-purpose folding vehicle |
| US20100044983A1 (en) * | 2008-08-22 | 2010-02-25 | Panigot Joseph E | Collapsible Utility Cart |
| KR20100062062A (en) * | 2008-12-01 | 2010-06-10 | 김희조 | Cart for goods carrying |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
| US20130049333A1 (en) * | 2011-08-25 | 2013-02-28 | Cheng-Chiang Yang | Foldable handcart |
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| GB810882A (en) * | 1956-10-16 | 1959-03-25 | Richard Charles Leslie Rayment | Improvements in or relating to trolleys |
| US4505495A (en) * | 1982-12-14 | 1985-03-19 | Janet Mary Penrose Foss | Portable, foldable and convertible luggage trolley |
| US5468005A (en) * | 1994-07-05 | 1995-11-21 | Goonng Chyii Industrial Co., Ltd. | Foldable cart |
| JP3000260B2 (en) * | 1996-04-23 | 2000-01-17 | 渡辺パイプ株式会社 | Transport vehicle |
| US6488304B2 (en) * | 2000-08-18 | 2002-12-03 | Magline, Inc. | Rapidly demountable multiple platform utility cart assembly and methods of making and operating it |
| DE10210448B4 (en) * | 2002-03-09 | 2016-06-30 | Hando Industry Co., Ltd. | handcart |
| US7140635B2 (en) * | 2004-05-18 | 2006-11-28 | Franzus Company Llc | Portable luggage carts/carriers |
| CN2778632Y (en) * | 2005-03-22 | 2006-05-10 | 苏中修 | Hand cart folding arrangement |
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer vehicle |
| US8100417B2 (en) * | 2010-01-19 | 2012-01-24 | Haiming Tsai | Handcart |
| CN201659997U (en) * | 2010-03-19 | 2010-12-01 | 蓝金义 | Folding pusher |
| KR20120000001A (en) * | 2010-06-26 | 2012-01-03 | 김종숙 | A portable folding cart |
| US8602444B2 (en) * | 2011-12-09 | 2013-12-10 | Seville Classics Inc. | Foldable hand cart |
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2013
- 2013-08-27 CN CN201510815168.2A patent/CN105523068A/en not_active Withdrawn
- 2013-08-27 CN CN201510814788.4A patent/CN105480266A/en not_active Withdrawn
- 2013-08-27 CN CN201310378405.4A patent/CN103407468B/en not_active Expired - Fee Related
- 2013-08-27 CN CN201510812867.1A patent/CN106143556A/en active Pending
- 2013-08-27 CN CN201510814746.0A patent/CN105480276A/en not_active Withdrawn
- 2013-08-27 CN CN201510815799.4A patent/CN105480277A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| US5072958A (en) * | 1991-02-19 | 1991-12-17 | Young Horace J | Hand truck |
| US20100044983A1 (en) * | 2008-08-22 | 2010-02-25 | Panigot Joseph E | Collapsible Utility Cart |
| KR20100062062A (en) * | 2008-12-01 | 2010-06-10 | 김희조 | Cart for goods carrying |
| CN201362272Y (en) * | 2009-03-13 | 2009-12-16 | 简世坤 | Dual-purpose folding vehicle |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
| US20130049333A1 (en) * | 2011-08-25 | 2013-02-28 | Cheng-Chiang Yang | Foldable handcart |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105480276A (en) | 2016-04-13 |
| CN103407468A (en) | 2013-11-27 |
| CN105480277A (en) | 2016-04-13 |
| CN103407468B (en) | 2015-12-02 |
| CN105480266A (en) | 2016-04-13 |
| CN105523068A (en) | 2016-04-27 |
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Application publication date: 20161123 |