CN106428149A - Rear frame assembly with coupling mechanism for combined type folding trailer - Google Patents
Rear frame assembly with coupling mechanism for combined type folding trailer Download PDFInfo
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- CN106428149A CN106428149A CN201510864146.5A CN201510864146A CN106428149A CN 106428149 A CN106428149 A CN 106428149A CN 201510864146 A CN201510864146 A CN 201510864146A CN 106428149 A CN106428149 A CN 106428149A
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- hole
- bearing surface
- frame assembly
- load
- backboard
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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
- 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
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/008—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor having more than two axes
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses a rear frame assembly with a coupling mechanism for a combined type folding trailer. The rear frame assembly comprises a rear baggage carrier, rear wheel assemblies, a rear blocking plate and connecting pieces, wherein rear sliding columns, rear limiting blocking tables and rear limiting tooth sockets are arranged/formed on/in the rear baggage carrier; a first pin joint hole, a rear furling and propping surface, a rear unfolding and propping surface, a rear arc transitional surface, a second pin joint hole, a furling and bearing surface, an unfolding and bearing surface and a locking screw hole are formed/arranged in/on each of the connecting pieces; each of the rear wheel assemblies comprises a rear wheel carrier with a rear sleeve pipe, a rear torsional spring and a rear wheel; the rear blocking plate is provided with a rear connecting boss; a rear shaft hole, a bearing convex plate and a limiting lock hole are formed/arranged in/on each of the rear connecting bosses; and a limiting screw is arranged in a locking screw hole of each of the connecting pieces, and in the process of reciprocating rotation and movement, the limiting screws extend in or move from the corresponding limiting lock hole. According to the rear frame assembly disclosed by the invention, while in use, the rear frame assembly can be matched with a front frame assembly for use, the rear frame assembly and the front frame assembly are combined to form a four-wheel foldable trailer, and the rear frame assembly can be individually used as a two-wheel foldable baggage trailer; and the rear frame assembly has the advantages of being multipurpose and multifunctional.
Description
The application is is " on 08 27th, 2013 ", Application No. " 2013103791448 " applying date, entitled " be 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, more particularly, to a kind of have coupling mechanism for modular folding trailer
Rear frame component.
Background technology
People are commonly used in shopping carrying article to save strength for user to four-wheel trailer, but current four-wheel
Trailer volume is generally larger to draw in it is impossible to fold, inconvenient to carry, takes up room also very big when depositing.
Patent documentation CN202186404U discloses a kind of foldable luggage trolley, and this car includes telescopic vehicle frame, its underpart
It is provided with the cylindrical push-pull bar being hinged with luggage truck weight tray, described cylinder 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 hangs down with vehicle frame after its expansion
Straight setting, for carrying luggage；Weight tray be connected with vehicle frame side be provided with the wheel being fixedly connected with described weight tray erect
Direct Travel control piece；Wheel stand has the second cannelure being adapted to socket with described cylinder push-pull bar, on the second cannelure
End face is provided with the second spiral-guide face being adapted 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 axis hole of push-pull bar bottom is socketed in 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
Move on guiding vertical road wheel under the collective effect in spiral-guide face and the second spiral-guide face and launch to both sides outward turning, carry bottom
When plate folds, wheel inward turning in the presence of described rotary torsion spring reclaims and vertically moves down simultaneously；Vehicle wheel edge after folding
Protrude from the weight tray bottom edge 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
Due to being the push-and-pull car of only two-wheeled, carrying dynamics is less to be used it is impossible to be widely used in factory floor.
Content of the invention
It is an object of the invention to provide one kind both can be used cooperatively with front frame assembly, combination forms that four-wheel is collapsible drags
Car it is also possible to be used alone, as the rear car for modular folding trailer with coupling mechanism of two-wheeled folding trailer
Frame assembly.
The technical scheme realizing the object of the invention is：A kind of rear car for modular folding trailer with coupling mechanism
Frame assembly, including after luggage carrier, two rear wheel assemblies, be arranged on the backboard of rear luggage carrier rear end and be used for connecting backboard
Two connectors with rear luggage carrier；The left and right sides end of luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller afterwards, respectively
Traveller is provided with limiting block platform after annular afterwards, and the rear end of each rear limiting block platform is provided with multiple rear spacing teeth groove；After each rear traveller
End is provided with rear pin-and-hole；The front end of each connector be provided with the first pivoted hole, draw in afterwards bearing surface, rear launch bearing surface and connect after
Draw the rear arc transition face of bearing surface and rear expansion bearing surface in, draw bearing surface afterwards in perpendicular to rear expansion bearing surface；Each connection
Part is rotated by the bearing pin through the first pivoted hole and rear pin-and-hole with traveller after corresponding and is connected, the central shaft of the first pivoted hole
Line is more than this central axis and the rear distance drawing bearing surface in the rear distance launching bearing surface；Each after launch bearing surface 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 for rear
The second pivoted hole, gathering load-carrying surface, expansion load-carrying surface and locking screw holes that flapper connects, the second pivoted hole is located at locking screw
Between hole and the first pivoted hole, draw load-carrying surface in and be located at the side away from the first pivoted hole for second pivoted hole, launch load-carrying surface position
In the second pivoted hole close to the side of the first pivoted hole；Each rear wheel assemblies include having the rear wheel frame of rear sleeve, rear torsion spring and
It is rotatably arranged on the rear wheel on rear wheel frame；The front end of each rear sleeve is provided with the rear limit convex matching with each rear spacing teeth groove
Tooth；Rear sleeve be set in corresponding one after on traveller, rear torsion spring is set on traveller after accordingly, and is located within rear sleeve；
Backboard is provided with two and connects boss afterwards, and each rear boss that connects is provided with rear axis hole, holding along rear luggage carrier horizontal direction evagination
Power flange and the spacing lockhole matching with locking screw holes on connector；Connect boss after each and a corresponding connector passes through to wear
Later the bearing pin of axis hole and the second pivoted hole rotates and connects；One stop screw is arranged in the locking screw holes of connector, and
During reciprocal turn, stretch into or remove spacing lockhole accordingly；Load flange with rear connection boss around the second pivot joint
During hole rotates, the gathering load-carrying surface of connector can be connected to and launch in load-carrying surface, and then carry follower link to rotate；Afterwards
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.
The present invention, when using, both can be used cooperatively with front frame assembly, and combination forms Four-wheel foldable trailer, also may be used
To be used alone, as the collapsible luggage trolley of two-wheeled, there is multi-purpose.
Brief description
Fig. 1 is that the present invention is in a kind of perspective view during deployed condition；
Fig. 2 is a kind of perspective view of front frame assembly in trailer shown in Fig. 1；
Fig. 3 is a kind of explosive view of front frame assembly shown in Fig. 2；
Fig. 4 is a kind of explosive view when another angle is observed for front frame assembly shown in Fig. 2；
Fig. 5 is a kind of perspective view of Rear frame component in trailer shown in Fig. 1；
Fig. 6 is a kind of explosive view of Rear frame component shown in Fig. 5；
Fig. 7 is a kind of perspective view when another angle is observed for the Rear frame component shown in Fig. 5；
Fig. 8 is a kind of side view when backboard and connector coordinate in Rear frame component shown in Fig. 5；
Fig. 9 is a kind of explosive view of backboard described in Fig. 8 and connector；
Figure 10 is that the present invention is in a kind of perspective view during flat；
Figure 11 is a kind of perspective view when another angle is observed for the trailer shown in Figure 10；
Figure 12 is a kind of side view of trailer shown in Figure 10；
Figure 13 is that the present invention is in a kind of perspective view during preliminary folded state；
Figure 14 is a kind of side view of trailer shown in Figure 13；
Figure 15 is the close-up schematic view at A in Figure 14；
Figure 16 is the close-up schematic view at B in Figure 14；
Figure 17 is that the present invention is in a kind of perspective view during completely folded state；
Figure 18 is a kind of side view of trailer shown in Figure 17.
It is 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, spacing teeth groove 213 afterwards, rear pin-and-hole 214, rear wheel assemblies 22, rear sleeve 221, rear wheel frame 222, rear torsion spring
223, rear wheel 224, spacing double wedge 225 afterwards, backboard 23, connection boss 231 afterwards, rear axis hole 232, load flange 233, spacing
Lockhole 234, connector 24, the first pivoted hole 241, draws bearing surface 242 afterwards in, launches bearing surface 243, rear arc transition face afterwards
244, the second pivoted hole 245, draws load-carrying surface 246 in, launches load-carrying surface 247, locking screw holes 248, stop screw 25, coupling mechanism
3, front coupling bar 31, screw 311, front pin joint connecting portion 32, rear coupling bar 33, lock hole 331, rear pin joint connecting portion 34, locking
Screw 35, connecting link pin 36, bearing pin 100.
Specific embodiment
（Embodiment 1）
The present embodiment is a kind of Rear frame component for modular folding trailer, as shown in Fig. 1 to Fig. 5, including after luggage carrier
21st, two rear wheel assemblies 22, be arranged on the backboard 23 of rear luggage carrier rear end and for connecting backboard and rear luggage carrier
Two connectors 24；The left and right sides end of luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller 211 afterwards, on each rear traveller
It 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
It 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, launches bearing surface afterwards
243 and draw bearing surface and the rear rear arc transition face 244 launching bearing surface in after connecting, draw bearing surface afterwards in perpendicular to rear
Launch bearing surface；Each connector with corresponding one after traveller rotated by the bearing pin 100 through the first pivoted hole and rear pin-and-hole 214
Connect, as shown in Figure 4, the central axis of the first pivoted hole is more than this central axis and rear receipts with rear expansion bearing surface apart from a
Hold together bearing surface apart from b；Launch bearing surface parallel to backboard place plane, each rear bearing surface that draws in is perpendicular to backboard after each
Place plane；The rear end of each connector be provided with for backboard rotate is connected the second pivoted hole 245, gathering load-carrying surface 246,
Launch load-carrying surface 247 and locking screw holes 248, the second pivoted hole 245 is located between locking screw holes 248 and the first pivoted hole 241, receives
Hold together load-carrying surface and be located at the side away from the first pivoted hole for second pivoted hole, launch load-carrying surface and be located at the second pivoted hole close to the first pivot
Connect the side in hole；After each rear wheel assemblies include having the rear wheel frame 222 of rear sleeve 221, rear torsion spring 223 and are rotatably arranged on
Rear wheel 224 on wheel carrier；The front end of each rear sleeve is provided with the rear spacing double wedge 225 matching with each rear spacing teeth groove；Rear enclosure
Pipe box be located at corresponding one after on traveller, rear torsion spring is set on traveller after accordingly, and is located within rear sleeve；Backboard sets
Two are had to connect boss 231 afterwards, each rear boss that connects is provided with rear axis hole 232, the load along rear luggage carrier horizontal direction evagination
Flange 233 and the spacing lockhole 234 matching with locking screw holes on connector；Boss and a corresponding connector is connected after each
Rotated by the bearing pin 100 through rear axis hole and the second pivoted hole and connect；One stop screw 25 is arranged on the locking of connector
In screw, and during reciprocal turn, stretch into or remove spacing lockhole 234 accordingly；Load flange is with rear connection
During boss rotates around the second pivoted hole, the gathering load-carrying surface of connector can be connected to and launch in load-carrying surface, and then carry
Follower link rotates.
The front end of Rear frame component is provided with coupling mechanism 3；Coupling mechanism includes being arranged on the left and right two of rear luggage carrier front end
Side there are two of lock hole 331 after coupling bar 33, the rear pin joint being fixedly installed on diapire on each rear coupling bar connect
34, two, portion lock-screw 35 and two connecting link pins 36, each lock-screw 35 is arranged on a corresponding lock hole 35
In, each connecting link pin 36 is rotatably arranged on the center of pin joint connecting portion 34 after corresponding.
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.
The present embodiment can use separately as two-wheeled folding trailer, specifically closing on front luggage carrier in Rear frame component
Roofbolt as towing holding rod, backboard is as support board.
（Application examples 1）
Should use-case be a kind of modular folding trailer made using above-described embodiment 1, as shown in Fig. 6 to Figure 18, including before
Chassis assembly 1, Rear frame component 2 and the coupling mechanism 3 for coupling front frame assembly and Rear frame component.
Fig. 6 to Fig. 9 should be seen by the concrete structure that is in during deployed condition of use-case, described front frame assembly includes front luggage carrier
11st, two front wheel assemblies 12, the front apron 13 being arranged on front luggage carrier front end and the pull bar 14 being arranged on front apron；Before
The left and right sides end of luggage carrier front end is respectively provided with a front sliding column 111 projecting forward, and each front sliding column is provided with annular front limit
Gear platform 112, the front end that each front limit keeps off 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 include having the front wheel carrier 122 of anterior cannula 121, front torsion spring 123 and are rotatably arranged on the front truck on front wheel carrier
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 accordingly
On one front sliding column, front torsion spring is set on corresponding front sliding column, and is located within anterior cannula；Front apron connects before being provided with two
Connect boss 131, each front connection boss is provided with front-axle hole 132, front gathering bearing surface 133, front expansion bearing surface 134, Yi Jilian
The front arc transition face 135 of bearing surface and front expansion bearing surface is drawn in before connecing；The central axis of front-axle hole and front expansion bearing surface
Distance be more than this central axis with front draw in bearing surface distance；Each front connection boss is by through front-axle hole and corresponding one
The bearing pin 100 of front pin-and-hole is rotated with front sliding column and is connected；Parallel to front apron place plane, each gathering in abuts each front expansion bearing surface
Face is perpendicular to front apron place plane.
Rear frame component includes rear 21, two rear wheel assemblies 22 of 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 luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller 211 afterwards, 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
Pin-and-hole 214 afterwards；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 the rear arc transition face 244 of bearing surface and rear expansion bearing surface in, draw bearing surface afterwards in and support perpendicular to rear expansion
Junction；Each connector is rotated by the bearing pin 100 through the first pivoted hole and rear pin-and-hole 214 with traveller after corresponding and is connected,
The central axis of the first pivoted hole is more than this central axis with rear gathering bearing surface apart from b with rear expansion bearing surface apart from a；
Launch bearing surface parallel to backboard place plane, each rear bearing surface that draws in is perpendicular to backboard place plane after each；Each connection
The rear end of part be provided with for backboard rotate is connected the second pivoted hole 245, draw in load-carrying surface 246, expansion load-carrying surface 247 and
Locking screw holes 248, the second pivoted hole 245 is located between locking screw holes 248 and the first pivoted hole 241, draws load-carrying surface in and is located at the
Two pivoted holes, away from the side of the first pivoted hole, launch load-carrying surface and are located at the second pivoted hole close to the side of the first pivoted hole；Respectively
Rear wheel assemblies include having the rear wheel frame 222 of rear sleeve 221, rear torsion spring 223 and are rotatably arranged on the rear wheel on rear wheel frame
224；The front end of each rear sleeve is provided with the rear spacing double wedge 225 matching with each rear spacing teeth groove；Rear sleeve is set in corresponding one
On individual rear traveller, rear torsion spring is set on traveller after accordingly, and is located within rear sleeve；Backboard connects convex after being provided with two
Platform 231, each after connect boss be provided with rear axis hole 232, along rear luggage carrier horizontal direction evagination load flange 233 and with even
The spacing lockhole 234 that on fitting, locking screw holes match；Boss and a corresponding connector is connected by through rear axis hole after each
Rotate with the bearing pin 100 of the second pivoted hole and connect；One stop screw 25 is arranged in the locking screw holes of connector, and reciprocal
During turn, stretch into or remove spacing lockhole 234 accordingly；Load flange with rear connection boss around the second pivoted hole
During rotation, the gathering load-carrying surface of connector can be connected to and launch in load-carrying surface, and then carry follower link to rotate.
Should in use-case coupling mechanism 3 include being arranged on the left and right sides end of front luggage carrier rear end there is screw 311
Two front coupling bars 31, the front pin joint connecting portion 32 being fixedly installed on each front coupling bar diapire, it is arranged on rear luggage carrier front end
Left and right sides end there are two of lock hole 331 after coupling bar 33, be fixedly installed on diapire on each rear coupling bar after
34, two lock-screws 35 of pin joint connecting portion and two connecting link pins 36；Each front pin joint connecting portion is led to rear pin joint connecting portion
Cross a connecting link pin and rotate and connect, when current luggage carrier upper surface and rear luggage carrier upper surface are in same plane, each screw
311 are just arranged to a lock hole 331 in transverse direction, and each lock-screw 35 is located in a corresponding screw 311, and reciprocal
During turn, stretch into or remove corresponding lock hole 331；Described front frame assembly and Rear frame component can be around connecting link pins
36 rotate overlapping after 180 degree.
Should be in use-case, front apron is provided with the rotating junction 136 with pin-and-hole, front close to front one end connecting boss
Plate is provided with two clamps 137 of protrusion away from front one end connecting boss；The bottom of pull bar is rotated with the rotating junction of front apron
Connect, the middle part of pull bar can clamping connection between two clamps.In concrete practice, also pull bar can be fixedly installed on front apron.
Should use-case when being in deployed condition, as shown in Fig. 6 to Fig. 9, 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 screwed in after screw 311 and stretched into by lock-screw 35
To lock hole 331, front luggage carrier and rear luggage carrier are locked.Now in front frame assembly, front apron perpendicular to front luggage carrier,
Front expansion bearing surface 134 on front limit gear platform is parallel to front apron place plane, and is connected to the front end face of anterior cannula 121
On, so that each front limit double wedge of anterior cannula rear end is embedded in corresponding front limit teeth groove simultaneously, front limit teeth groove thus
There is restriction rotating effect to anterior cannula so that front vehicle wheel now, perpendicular to front luggage carrier place plane, can roll with reality
Now normally tow.In Rear frame component, backboard is perpendicular to rear luggage carrier place plane, and the rear load flange connecting boss
233 are connected in the gathering load-carrying surface 246 of connector, this gathering load-carrying surface in this condition, can prevent backboard continue to
Front rotation；In addition, now turn stop screw 25 is so as to connect after extending into accordingly through after the locking screw holes 248 of connector
Connect in the spacing lockhole 234 on boss 231, thus backboard 23 is got up with connector locking, effectively prevent backboard in goods
Rotate backward under the extruding of thing；Rear expansion bearing surface 243 in each connector is parallel to backboard place plane, and is connected to phase
The each rear spacing double wedge of on the rear end face of the rear sleeve answered so that rear sleeve front end is embedded in rear spacing teeth groove, rear limiting tooth
Groove thus have restriction rotating effect so that rear wheel now, perpendicular to rear luggage carrier place plane, can roll to rear sleeve
Move to realize normally towing.
Should be in shown in the concrete structure as Figure 10 to Figure 12 of flat by use-case, under deployed condition shown in Fig. 6, rotation
So as to remove from the rear spacing lockhole 234 connecting boss 231, external force promotes backboard around rear axis hole 232 to dynamic stop screw 25
Rotate backward, until load flange 233 is connected in the expansion load-carrying surface 247 of connector, now backboard upper surface and rear bearing
The upper surface of rack is in same plane, under the position-limiting action of the expansion load-carrying surface 247 of connector, can prevent backboard from continuing
Rotate backward；This structure can also serve as support board backboard and use, and be effectively increased the loaded area of trailer.
Should be in shown in the concrete structure as Figure 13 to Figure 16 of preliminary folded state, in deployed condition shown in Fig. 6 by use-case
Under, directly promote backboard forward under external force, because the load flange 233 on backboard is connected to the gathering of connector
In load-carrying surface 246, thus carrying follower link to rotate forward around the first pivoted hole 241, until rear gathering bearing surface 242 is perpendicular to rear
Luggage carrier place plane is simultaneously connected on the rear end face of rear sleeve, due to central axis and the rear expansion bearing surface of the first pivoted hole
Distance be more than this central axis with rear draw in bearing surface distance so that rear sleeve is in the rotation process of connector, can exist
Afterwards under the elastic force effect of torsion spring 223, sliding certain distance is so that move spacing double wedge spacing teeth groove after accordingly afterwards backward
Go out, because rear spacing teeth groove no longer has restriction rotating effect to rear sleeve, so rear sleeve can be in the twisting force of rear torsion spring
Under, with rear luggage carrier overlapping after driving rear wheel frame 222 and rear wheel 224 to turn an angle.In addition, launching shape shown in Fig. 6
Under state, external force promotes front apron backward, connects boss 131 and rotate backward around front-axle hole 132 before driving, until front gathering bearing surface
133 are connected on the front end face of anterior cannula, and central axis and the front distance launching bearing surface due to front-axle hole are more than this center
Axis and the front distance drawing bearing surface in, so during the rotating backward of backboard, anterior cannula can sliding one spacing forward
From so that front limit double wedge removes from corresponding front limit teeth groove, because front limit teeth groove does not have restriction to anterior cannula
Rotating effect, thus anterior cannula can under the twisting force of front torsion spring, after driving front wheel carrier and front vehicle wheel to turn an angle with
Front luggage carrier overlapping.
Use-case should be in shown in the concrete structure as Figure 17 to Figure 18 of completely folded state, tentatively folding shown in Figure 13
Under state, turn lock-screw 35 makes its end remove lock hole 331, and now front luggage carrier and rear luggage carrier can be around connecting link pins
36 rotations, and the basal surface of luggage carrier adjoins the basal surface of rear luggage carrier before making after rotating 180 degree；Now, can revolve again
Dynamic lock-screw 35 makes its end extend in lock hole 331, thus again front luggage carrier and rear luggage carrier lock so that two
Person will not oneself separate.
In addition, a characteristic should also be had it is simply that after pulling down connecting link pin 36 by use-case（Because in concrete practice,
Can be replaced with bolt assembly should riveting pin in use-case as connecting link pin, its dismounting is all relatively simple）, front frame group
Part and Rear frame component all can independently become two-wheeled folding trailer；For front frame assembly, pull bar continues conduct and drags
Row holding rod, front luggage carrier continues as luggage carrier；But for Rear frame component, be to close in Rear frame component before
, as towing holding rod, backboard is as support board for the roofbolt of luggage carrier.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate 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, acceptable on the basis of the above description
Make other changes in different forms.There is no need to be exhaustive to all of embodiment.And these genus
Among the obvious change extended out of spirit of the present invention or variation are still in protection scope of the present invention.
Claims (1)
1. a kind of Rear frame component for modular folding trailer with coupling mechanism, including after luggage carrier, two rear cars
Wheel assembly, it is arranged on the backboard of rear luggage carrier rear end and for connecting two connectors of backboard and rear luggage carrier；It is special
Levy and be：The left and right sides end of luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller afterwards, and each rear traveller is provided with annular
Limiting block platform afterwards, 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 connect
The front end of fitting is provided with the first pivoted hole, draws bearing surface afterwards in, launches bearing surface afterwards and draw bearing surface and rear exhibition after connecting in
Open the rear arc transition face of bearing surface, draw bearing surface afterwards in perpendicular to rear expansion bearing surface；Each connector with corresponding one after slide
Post rotates connection, the central axis of the first pivoted hole and rear expansion bearing surface by the bearing pin through the first pivoted hole and rear pin-and-hole
Distance be more than this central axis with rear draw in bearing surface distance；Launch bearing surface parallel to backboard place plane after each,
Bearing surface is drawn in perpendicular to backboard place plane after each；The rear end of each connector is provided with for rotating, with backboard, the being connected
Two pivoted holes, draw load-carrying surface in, launch load-carrying surface and locking screw holes, the second pivoted hole be located at locking screw holes and the first pivoted hole it
Between, draw load-carrying surface in and be located at the side away from the first pivoted hole for second pivoted hole, launch load-carrying surface close positioned at the second pivoted hole
The side of the first pivoted hole；Each rear wheel assemblies include having the rear wheel frame of rear sleeve, rear torsion spring and are rotatably arranged on rear wheel frame
On rear wheel；The front end of each rear sleeve is provided with the rear spacing double wedge matching with each rear spacing teeth groove；Rear sleeve is set in phase
On traveller after answering, rear torsion spring is set on traveller after accordingly, and is located within rear sleeve；Backboard connects after being provided with two
Connect boss, each after connect boss be provided with rear axis hole, along rear luggage carrier horizontal direction evagination load flange and with connector on
The spacing lockhole that locking screw holes match；Boss and a corresponding connector is connected by through rear axis hole and the second pivot joint after each
The bearing pin in hole rotates and connects；One stop screw is arranged in the locking screw holes of connector, and during reciprocal turn, stretches
Enter or remove spacing lockhole accordingly；Load flange, during rotating around the second pivoted hole with rear connection boss, can support
It is connected on the gathering load-carrying surface of connector and launches in load-carrying surface, and then carry follower link to rotate；Backboard can be in external force around rear axle
Hole rotates, until load flange is connected in the expansion load-carrying surface of connector, now backboard upper surface and rear luggage carrier is upper
Surface is in same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864146.5A CN106428149A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly with coupling mechanism for combined type folding trailer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310379144.8A CN103407470B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of modular folding trailer |
| CN201510864146.5A CN106428149A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly with coupling mechanism for combined type folding trailer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310379144.8A Division CN103407470B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of modular folding trailer |
Publications (1)
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|---|---|
| CN106428149A true CN106428149A (en) | 2017-02-22 |
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Family Applications (10)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510859472.7A Withdrawn CN105620528A (en) | 2013-08-27 | 2013-08-27 | Rear frame component provided with connecting mechanism and used for combined folding trailer |
| CN201510860572.1A Pending CN105539538A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined foldable trailer |
| CN201310379144.8A Expired - Fee Related CN103407470B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of modular folding trailer |
| CN201510866886.2A Pending CN105480279A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined type foldable trailer |
| CN201510861033.XA Withdrawn CN106428147A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined type folding trailer |
| CN201510862718.6A Withdrawn CN106004939A (en) | 2013-08-27 | 2013-08-27 | Rear frame component provided with linkage mechanism and applied to combined folding trailer |
| CN201510864146.5A Withdrawn CN106428149A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly with coupling mechanism for combined type folding trailer |
| CN201510864104.1A Withdrawn CN106428148A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined type folding trailer |
| CN201510862717.1A Withdrawn CN106004938A (en) | 2013-08-27 | 2013-08-27 | Rear frame component applied to combined folding trailer |
| CN201510867180.8A Withdrawn CN105480280A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly with coupling mechanism for combined type foldable trailer |
Family Applications Before (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510859472.7A Withdrawn CN105620528A (en) | 2013-08-27 | 2013-08-27 | Rear frame component provided with connecting mechanism and used for combined folding trailer |
| CN201510860572.1A Pending CN105539538A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined foldable trailer |
| CN201310379144.8A Expired - Fee Related CN103407470B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of modular folding trailer |
| CN201510866886.2A Pending CN105480279A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined type foldable trailer |
| CN201510861033.XA Withdrawn CN106428147A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined type folding trailer |
| CN201510862718.6A Withdrawn CN106004939A (en) | 2013-08-27 | 2013-08-27 | Rear frame component provided with linkage mechanism and applied to combined folding trailer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510864104.1A Withdrawn CN106428148A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for combined type folding trailer |
| CN201510862717.1A Withdrawn CN106004938A (en) | 2013-08-27 | 2013-08-27 | Rear frame component applied to combined folding trailer |
| CN201510867180.8A Withdrawn CN105480280A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly with coupling mechanism for combined type foldable trailer |
Country Status (1)
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| CN (10) | CN105620528A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108839678A (en) * | 2018-06-05 | 2018-11-20 | 叶永青 | A kind of construction cement unloading trolley |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109795837A (en) * | 2018-12-10 | 2019-05-24 | 山东亚奥特乳业有限公司 | A kind of transmission equipment in dairy produce Refrigerated Transport |
| CN117366434B (en) * | 2023-12-08 | 2024-02-02 | 同圆设计集团股份有限公司 | Geographic information acquisition device for homeland space planning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JPH0651471B2 (en) * | 1989-04-12 | 1994-07-06 | 高男 齊藤 | Folding trolley |
| 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 |
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer vehicle |
| CN201046713Y (en) * | 2007-04-26 | 2008-04-16 | 煜益实业股份有限公司 | Handle collapsible push-car structure |
| US7963531B2 (en) * | 2008-08-22 | 2011-06-21 | Foldable Stuff, Llc | 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 |
| 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 |
| CN102649440A (en) * | 2011-02-28 | 2012-08-29 | 宜炫企业有限公司 | Handcart structure |
| CN202186404U (en) * | 2011-06-16 | 2012-04-11 | 黄怀高 | Foldable luggage cart |
| US8602444B2 (en) * | 2011-12-09 | 2013-12-10 | Seville Classics Inc. | Foldable hand cart |
-
2013
- 2013-08-27 CN CN201510859472.7A patent/CN105620528A/en not_active Withdrawn
- 2013-08-27 CN CN201510860572.1A patent/CN105539538A/en active Pending
- 2013-08-27 CN CN201310379144.8A patent/CN103407470B/en not_active Expired - Fee Related
- 2013-08-27 CN CN201510866886.2A patent/CN105480279A/en active Pending
- 2013-08-27 CN CN201510861033.XA patent/CN106428147A/en not_active Withdrawn
- 2013-08-27 CN CN201510862718.6A patent/CN106004939A/en not_active Withdrawn
- 2013-08-27 CN CN201510864146.5A patent/CN106428149A/en not_active Withdrawn
- 2013-08-27 CN CN201510864104.1A patent/CN106428148A/en not_active Withdrawn
- 2013-08-27 CN CN201510862717.1A patent/CN106004938A/en not_active Withdrawn
- 2013-08-27 CN CN201510867180.8A patent/CN105480280A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108839678A (en) * | 2018-06-05 | 2018-11-20 | 叶永青 | A kind of construction cement unloading trolley |
| CN108839678B (en) * | 2018-06-05 | 2021-07-20 | 安徽朗辰建筑工程有限公司 | Cement unloading dolly for construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106428147A (en) | 2017-02-22 |
| CN103407470B (en) | 2016-03-30 |
| CN106004938A (en) | 2016-10-12 |
| CN106004939A (en) | 2016-10-12 |
| CN106428148A (en) | 2017-02-22 |
| CN105620528A (en) | 2016-06-01 |
| CN105480279A (en) | 2016-04-13 |
| CN103407470A (en) | 2013-11-27 |
| CN105480280A (en) | 2016-04-13 |
| CN105539538A (en) | 2016-05-04 |
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Application publication date: 20170222 |