CN105523068A - Rear frame assembly provided with connecting mechanism and used for folding trailer - Google Patents
Rear frame assembly provided with connecting mechanism and used for folding trailer Download PDFInfo
- Publication number
- CN105523068A CN105523068A CN201510815168.2A CN201510815168A CN105523068A CN 105523068 A CN105523068 A CN 105523068A CN 201510815168 A CN201510815168 A CN 201510815168A CN 105523068 A CN105523068 A CN 105523068A
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- Prior art keywords
- wheel
- luggage carrier
- hole
- bearing surface
- pivoted hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- 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 rear frame assembly provided with a connecting mechanism and used for a folding trailer. The rear frame assembly comprises a rear carrier, rear wheel assemblies, a rear baffle and connecting pieces. The front end of each connecting piece is provided with a first pivoting hole, a rear folding abutting face, a rear unfolding abutting face and a rear arc-shaped transitional face. The distance between the center axis of each first pivoting hole and the corresponding rear unfolding abutting face is larger than the distance between the center axis of each first pivoting hole and the corresponding rear folding abutting face. The rear end of each connecting piece is provided with a second pivoting hole, a folding bearing face and an unfolding bearing face. The rear baffle is provided with rear connecting bosses. Each rear connecting boss is provided with a rear shaft hole and a bearing protruding board. The bearing protruding boards can abut against the folding bearing faces and the unfolding bearing faces of the connecting pieces in the rotation process, so that the connecting pieces are driven to rotate. The rear frame assembly used for the four-wheel folding trailer can be used in cooperation with a front frame assembly and the rear frame assembly and the front frame assembly are combined to form the four-wheel folding trailer; and the rear frame assembly can be independently used as a two-wheel folding trailer.
Description
The divisional application that the application is the applying date is " on 08 27th, 2013 ", application number is " 2013103784054 ", name is called the application for a patent for invention of " Rear frame component for folding trailer ".
Technical field
The present invention relates to trailer technical field, particularly relate to a kind of Rear frame component for folding trailer with coupling mechanism.
Background technology
People often use four-wheel trailer when doing shopping carrying article, can save strength for user, but four-wheel trailer volume is general comparatively large at present, can not fold gathering, carry inconvenience, take up room also very large when depositing.
Patent documentation CN202186404U discloses a kind of foldable luggage trolley, this car comprises telescopic vehicle frame, its underpart is provided with the cylindrical pull bar be hinged with baggage car weight tray, described cylindrical pull bar top is provided with the first circular groove, and the first circular groove lower surface is provided with the first spiral-guide face; Weight tray folds afterwards and vehicle frame is fitted, and it launches vertical with vehicle frame afterwards setting, for carrying luggage; Weight tray is connected side and is provided with the vertical road wheel Stroke Control part be fixedly connected with described weight tray with vehicle frame; Wheel stand has the second circular groove be socketed with described cylindrical pull bar adaptation, and the second circular groove upper surface is provided with the second spiral-guide face suitable with described first spiral-guide face, and the second circular groove internal fixtion is taken a seat a rotary torsion spring; Pull bar is vertically arranged in the second circular groove, and the shaft hole sleeve of pull bar bottom is connected in the axle of vertical road wheel Stroke Control part; When weight tray launches, described vertical road wheel formation control part forms pushing tow to the second circular groove, guide under the combined action in described first spiral-guide face and the second spiral-guide face and vertical road wheel moves and launches to both sides outward turning, when weight tray folds, wheel inward turning under the effect of described rotary torsion spring reclaims and vertically moves down simultaneously; Vehicle wheel after folding is along protruding from edge at the bottom of the weight tray after folding.
This patent documentation describes detailed mechanism and the principle of work of collapsible wheel in detail, but this kind of foldable luggage trolley is owing to being the push-and-pull vehicle only having two-wheeled, and carrying dynamics is less, can not be widely used in factory floor and use.
Summary of the invention
The object of this invention is to provide a kind of have coupling mechanism both can with front vehicle frame assembly with the use of, be combined to form Four-wheel foldable trailer, also can be used alone, as the Rear frame component for Four-wheel foldable trailer of two-wheeled folding trailer.
The technical scheme realizing the object of the invention is: a kind of Rear frame component for folding trailer with coupling mechanism, and Rear frame component comprising rear luggage carrier, two rear wheel assemblies, being arranged on the back shield of rear luggage carrier rear end and two attaching partss for being connected back shield 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, and each rear traveller is provided with the rear limiting block platform of annular, and the rear end of each rear limiting block platform is provided with multiple rear spacing teeth groove, the rear end of each rear traveller is provided with rear pin-and-hole, the front end of each attaching parts is provided with the first pivoted hole, rear gathering bearing surface, rear expansion bearing surface and draws the rear arc transition face of bearing surface and rear expansion bearing surface after connecting in, after each attaching parts and corresponding one, traveller is by being rotationally connected through the bearing pin of the first pivoted hole and rear pin-and-hole, and the central axis of the first pivoted hole and the distance of rear expansion bearing surface are greater than the distance of this central axis and rear gathering bearing surface, the rear end of each attaching parts being provided with the second pivoted hole for being rotationally connected with back shield, drawing bearing area in and launching bearing area, draw bearing area in and be positioned at the side of the second pivoted hole away from the first pivoted hole, launch bearing area and be positioned at the side of the second pivoted hole close to the first pivoted hole, each rear wheel assemblies comprises the rear wheel frame with rear sleeve, rear torsion spring and rotation and is arranged on rear wheel on rear wheel frame, the front end of each rear sleeve is provided with the rear spacing double wedge matched with each rear spacing teeth groove, after rear sleeve is set in corresponding one on traveller, rear torsion spring set is located on corresponding rear traveller, and is positioned within rear sleeve, back shield connects boss after being provided with two, and each rear connection boss is provided with rear axis hole and the load flange along rear luggage carrier horizontal direction evagination, each rear connection boss and a corresponding attaching parts are by being rotationally connected through the bearing pin of rear axis hole and the second pivoted hole, load flange, in the process of rotating around the second pivoted hole along with rear connection boss, can be connected to the gathering bearing area of attaching parts and launch in bearing area, and then band follower link rotates, each rear expansion bearing surface is parallel to back shield place plane, and each rear gathering bearing surface is perpendicular to back shield place plane, back shield can rotate around rear axis hole in external force, until load flange is connected in the expansion bearing area of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane, Rear frame component comprises the coupling mechanism for being connected with external front vehicle frame assembly, coupling mechanism comprises two front pitmans of the left and right sides end being arranged on front luggage carrier rear end, be fixedly installed on the locating wheel on each front pitman, be arranged on pitman after two of the left and right sides end of rear luggage carrier front end, be fixedly installed on the connection flange on each rear pitman, the axostylus axostyle that after running through two, pitman also can move back and forth in left-right direction, be fixedly installed on two annular gear platforms on axostylus axostyle, for providing the screw thread spring of reseting elasticity for axostylus axostyle, and for being rotationally connected the attachment bolt assembly of each rear pitman and a corresponding locating wheel, the edge of each locating wheel is provided with two the arc shaped locating notches be centrosymmetric, and each annular gear platform, in the process moved back and forth along with axostylus axostyle, embeds or shift out in a corresponding locating notch, described front vehicle frame assembly and Rear frame component can be superimposed after attachment bolt assembly rotates 180 degree.
The present invention in use, both can with front vehicle frame assembly with the use of, be combined to form Four-wheel foldable trailer, also can be used alone, as the collapsible luggage trolley of two-wheeled, there is the advantage of multi-purpose.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention;
Fig. 2 is that Rear frame component shown in Fig. 1 is from a kind of perspective view during another angle views;
Fig. 3 is a kind of lateral plan of Rear frame component shown in Fig. 1;
Fig. 4 is a kind of exploded view of Rear frame component shown in Fig. 1;
Fig. 5 is a kind of exploded view of Rear frame component shown in Fig. 2;
Fig. 6 is a kind of perspective view of the Four-wheel foldable trailer adopting Rear frame component shown in Fig. 1 to make when being in deployed condition;
Fig. 7 is a kind of perspective view of front vehicle frame assembly in trailer shown in Fig. 6;
Fig. 8 is that the assembly of front vehicle frame shown in Fig. 7 is from a kind of perspective view during another angle views;
Fig. 9 is a kind of lateral plan of the assembly of front vehicle frame shown in Fig. 7;
Figure 10 is a kind of lateral plan of front apron in the assembly of front vehicle frame shown in 7;
Figure 11 is a kind of exploded view of the assembly of front vehicle frame shown in Fig. 7;
Figure 12 is a kind of exploded view of the assembly of front vehicle frame shown in Fig. 8;
Figure 13 is a kind of perspective view of trailer shown in Fig. 6 when being in flat;
Figure 14 is a kind of perspective view of back shield in trailer shown in Figure 13;
Figure 15 is a kind of perspective view of trailer shown in Fig. 6 when being in preliminary folded state;
Figure 16 is a kind of exploded view of back shield and attaching parts in Figure 15;
Figure 17 is a kind of lateral plan 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 of trailer shown in Fig. 6 when being in complete folded state;
Figure 20 is a kind of lateral plan of trailer shown in Figure 19.
Be labeled as shown in accompanying drawing: front vehicle 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, front arc transition face 135, rotating junction 136, clamp 137, pull bar 14, Rear frame component 2, rear luggage carrier 21, rear traveller 211, rear 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, back shield 23, rear connection boss 231, rear axis hole 232, load flange 233, attaching parts 24, first pivoted hole 241, rear gathering bearing surface 242, rear expansion bearing surface 243, rear arc transition face 244, second pivoted hole 245, draw bearing area 246 in, launch bearing area 247, coupling mechanism 3, front pitman 31, locating wheel 32, locating notch 321, rear pitman 33, connect 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, see shown in Fig. 1 to Fig. 5, Rear frame component 2 comprising rear luggage carrier 21, two rear wheel assemblies 22, being arranged on the back shield 23 of rear luggage carrier rear end and two attaching partss 24 for being connected back shield 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 the rear limiting block platform 212 of annular, and 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 attaching parts is provided with the first pivoted hole 241, rear gathering bearing surface 242, rear expansion bearing surface 243 and draws the rear arc transition face 244 of bearing surface and rear expansion bearing surface after connecting in; After each attaching parts and corresponding one, traveller is rotationally connected by the bearing pin 100 through the first pivoted hole and rear pin-and-hole 214, and the central axis of the first pivoted hole and the distance of rear expansion bearing surface are greater than the distance of this central axis and rear gathering bearing surface; Each rear expansion bearing surface is parallel to back shield place plane, and each rear gathering bearing surface is perpendicular to back shield place plane; The rear end of each attaching parts being provided with the second pivoted hole 245 for being rotationally connected with back shield, drawing bearing area 246 in and launching bearing area 247, draw bearing area in and be positioned at the side of the second pivoted hole away from the first pivoted hole, launch bearing area and be positioned at the side of the second pivoted hole close to the first pivoted hole; Each rear wheel assemblies comprises rear wheel frame 222, the rear torsion spring 223 with rear sleeve 221 and rotates the rear wheel 224 that is arranged on rear wheel frame; The front end of each rear sleeve is provided with the rear spacing double wedge 225 matched with each rear spacing teeth groove; After rear sleeve is set in corresponding one on traveller, rear torsion spring set is located on corresponding rear traveller, and is positioned within rear sleeve; Back shield is provided with two and connects boss 231 afterwards, and each rear connection boss is provided with rear axis hole 232 and the load flange 233 along rear luggage carrier horizontal direction evagination; Each rear connection boss and a corresponding attaching parts are rotationally connected by the bearing pin 100 through rear axis hole and the second pivoted hole; Load flange, in the process of rotating around the second pivoted hole along with rear connection boss, can be connected to the gathering bearing area of attaching parts and launch in bearing area, and then band follower link rotates.
Back shield can rotate around rear axis hole in external force, until load flange is connected in the expansion bearing area of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane.
As shown in Figure 18, Rear frame component comprises the coupling mechanism 3 for being connected with external front vehicle frame assembly; Pitman 33 after this coupling mechanism comprises two of the left and right sides end being arranged on rear luggage carrier front end, the connection flange 34 be fixedly installed on each rear pitman, run through two after pitmans the axostylus axostyle 35 that can move back and forth in left-right direction, be fixedly installed on two annular gear platforms 36 on axostylus axostyle and for providing the screw thread spring 37 of reseting elasticity for axostylus axostyle.
The present embodiment in use, can axostylus axostyle as towing holding rod, using back shield as support board, thus use as independently two-wheeled folding trailer; Can also with front vehicle frame assembly with the use of, be combined to form Four-wheel foldable trailer use.
In addition, back shield in the present embodiment both can be comparatively stable be in perpendicular to rear luggage carrier place plane, be superimposed on the upper surface of rear luggage carrier, to rear side and turn to the three kind states consistent with rear luggage carrier place plane, thus have easy-to-use, take up room less, deposit and carry advantageously advantage.
(application examples 1)
Should use-case being a kind of Four-wheel foldable trailer, seeing shown in Fig. 6 to Figure 20, comprising front vehicle frame assembly 1, Rear frame component 2 and the coupling mechanism 3 for connecting front vehicle frame assembly and Rear frame component.
Should see Fig. 6 to Figure 12 by the concrete structure of use-case when being in deployed condition, described front vehicle frame assembly comprises front luggage carrier 11, two front wheel assemblies 12, the front apron 13 being arranged on front luggage carrier front end and the pull bar 14 be 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 given prominence to forward, and each front sliding column is provided with annular front limit gear platform 112, and 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 comprises front wheel carrier 122, the front torsion spring 123 with anterior cannula 121 and rotates the front vehicle wheel 124 that is arranged on front wheel carrier; 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 on a corresponding front sliding column, and front torsion spring set is located on corresponding front sliding column, and is positioned within anterior cannula; Front apron connects boss 131 before being provided with two, connects boss and be provided with front-axle hole 132, front gathering bearing surface 133, front expansion bearing surface 134 and draw the front arc transition face 135 of bearing surface and front expansion bearing surface before connecting in before each; As shown in Figure 10, the central axis of front-axle hole and the distance a of front expansion bearing surface are greater than the distance b of this central axis and front gathering bearing surface; Boss is connected by being rotationally connected with front sliding column through the bearing pin 100 of front-axle hole and a corresponding front pin-and-hole before each; Launch bearing surface before each and be parallel to front apron place plane, each bearing surface that draws in is perpendicular to front apron place plane.
Rear frame component comprising rear luggage carrier 21, two rear wheel assemblies 22, being arranged on the back shield 23 of rear luggage carrier rear end and two attaching partss 24 for being connected back shield 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 the rear limiting block platform 212 of annular, and 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 attaching parts is provided with the first pivoted hole 241, rear gathering bearing surface 242, rear expansion bearing surface 243 and draws the rear arc transition face 244 of bearing surface and rear expansion bearing surface after connecting in; After each attaching parts and corresponding one, traveller is rotationally connected by the bearing pin 100 through the first pivoted hole and rear pin-and-hole 214, and the central axis of the first pivoted hole and the distance of rear expansion bearing surface are greater than the distance of this central axis and rear gathering bearing surface; Each rear expansion bearing surface is parallel to back shield place plane, and each rear gathering bearing surface is perpendicular to back shield place plane; The rear end of each attaching parts being provided with the second pivoted hole 245 for being rotationally connected with back shield, drawing bearing area 246 in and launching bearing area 247, draw bearing area in and be positioned at the side of the second pivoted hole away from the first pivoted hole, launch bearing area and be positioned at the side of the second pivoted hole close to the first pivoted hole; Each rear wheel assemblies comprises rear wheel frame 222, the rear torsion spring 223 with rear sleeve 221 and rotates the rear wheel 224 that is arranged on rear wheel frame; The front end of each rear sleeve is provided with the rear spacing double wedge 225 matched with each rear spacing teeth groove; After rear sleeve is set in corresponding one on traveller, rear torsion spring set is located on corresponding rear traveller, and is positioned within rear sleeve; Back shield is provided with two and connects boss 231 afterwards, and each rear connection boss is provided with rear axis hole 232 and the load flange 233 along rear luggage carrier horizontal direction evagination; Each rear connection boss and a corresponding attaching parts are rotationally connected by the bearing pin 100 through rear axis hole and the second pivoted hole; Load flange, in the process of rotating around the second pivoted hole along with rear connection boss, can be connected to the gathering bearing area of attaching parts and launch in bearing area, and then band follower link rotates.
As shown in Figure 18, two front pitmans 31 of the left and right sides end being arranged on front luggage carrier rear end should be comprised by coupling mechanism 3 in use-case, be fixedly installed on the locating wheel 32 on each front pitman, be arranged on pitman 33 after two of the left and right sides end of rear luggage carrier front end, be fixedly installed on the connection flange 34 on each rear pitman, the axostylus axostyle 35 that after running through two, pitman also can move back and forth in left-right direction, be fixedly installed on two annular gear platforms 36 on axostylus axostyle, for providing the screw thread spring 37 of reseting elasticity for axostylus axostyle, and for being rotationally connected the attachment bolt assembly 38 of each rear pitman and a corresponding locating wheel, the edge of each locating wheel is provided with two the arc shaped locating notches 321 be centrosymmetric, and each annular gear platform, in the process moved back and forth along with axostylus axostyle, embeds or shift out in a corresponding locating notch, described front vehicle frame assembly and Rear frame component can be superimposed after attachment bolt assembly 38 rotates 180 degree.
Should in use-case, front apron is provided with the rotating junction 136 with pin-and-hole close to one end of front connection boss, and front apron is provided with two clamps 137 of protrusion away from one end of front connection boss; The bottom of pull bar and the rotating junction of front apron are rotationally connected, 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, see shown in Fig. 6 to Figure 12, the upper surface of front luggage carrier and rear luggage carrier is in same plane, and front luggage carrier and rear luggage carrier are connected by coupling mechanism, and is embedded both lockings by locating wheel in the locating notch of corresponding locating wheel.Now in front vehicle frame assembly, front apron is perpendicular to front luggage carrier, front expansion bearing surface 134 on front limit gear platform is parallel to front apron place plane, and be connected on the front end face of anterior cannula 121, also make each front limit double wedge of anterior cannula rear end be embedded in corresponding front limit teeth groove simultaneously, front limit teeth groove thus have restriction rotating effect to anterior cannula, makes front vehicle wheel now perpendicular to front luggage carrier place plane, can roll to realize normally towing.In Rear frame component, back shield is perpendicular to rear luggage carrier place plane, and the rear load flange 233 connecting boss is connected in the gathering bearing area 246 of attaching parts, and this gathering bearing area in this condition, can prevent back shield from continuing to rotate forward; Rear expansion bearing surface 243 in each attaching parts is parallel to back shield place plane, and be connected on the aft end face of corresponding rear sleeve, the each rear spacing double wedge of rear sleeve front end is made to be embedded in rear spacing teeth groove, rear spacing teeth groove thus there is restriction rotating effect to rear sleeve, make rear wheel now perpendicular to rear luggage carrier place plane, can roll to realize normally towing.
Should see shown in Figure 13 to Figure 14 by the use-case concrete structure that is in flat, under deployed condition shown in Fig. 6, external force promotes back shield and rotates backward around rear axis hole, until load flange 233 is connected in the expansion bearing area 247 of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane, under the position-limiting action of the expansion bearing area 247 of attaching parts, can prevent back shield from continuing to rotate backward; This structure also can use back shield as support board, effectively increase the loaded area of trailer.
Should see shown in Figure 15 to Figure 17 by the use-case concrete structure that is in preliminary folded state, under deployed condition shown in Fig. 6, external force driven forward back shield, because the load flange 233 on back shield is connected in the gathering bearing area 246 of attaching parts, thus band follower link rotates forward around the first pivoted hole 241, until after draw bearing surface 242 in and be connected on the aft end face of rear sleeve perpendicular to rear luggage carrier place plane, because the central axis of the first pivoted hole and the distance of rear expansion bearing surface are greater than the distance of this central axis and rear gathering bearing surface, make rear sleeve in the rotation process of attaching parts, can under the elastic force effect of rear torsion spring 223, slippage certain distance backward, rear spacing double wedge is shifted out from corresponding rear spacing teeth groove, because rear spacing teeth groove no longer has restriction rotating effect to rear sleeve, so rear sleeve can under the twisting force of rear torsion spring, be connected on the basal surface of rear luggage carrier after driving rear wheel frame 222 and rear wheel 224 to turn an angle.In addition, under deployed condition shown in Fig. 6, external force promotes front apron backward, connect boss 131 before driving to rotate backward around front-axle hole 132, until front gathering bearing surface 133 is connected on the front end face of anterior cannula, because the central axis of front-axle hole and the distance a of front expansion bearing surface are greater than the distance b of this central axis and front gathering bearing surface, so rotate backward in process at back shield, anterior cannula can slippage certain distance forward, front limit double wedge is shifted out from corresponding front limit teeth groove, because front limit teeth groove does not have restriction rotating effect to anterior cannula, so anterior cannula can under the twisting force of front torsion spring, on the basal surface driving front wheel carrier and front vehicle wheel to turn an angle to be connected to front luggage carrier.
Should see shown in Figure 19 to Figure 20 by the use-case concrete structure that is in complete folded state, under folded state preliminary shown in Figure 15, pressing axostylus axostyle 35, axostylus axostyle is made to overcome the reseting elasticity of screw thread spring 37 and move a certain distance, the annular gear platform be fixed on axostylus axostyle is shifted out from a corresponding locating notch 321, thus can folding carrier and rear luggage carrier, when front luggage carrier or rear luggage carrier being rotated 180 degree and making both superimposed, also after namely making the basal surface of front vehicle frame assembly adjoin the basal surface of Rear frame component, unclamp axostylus axostyle, axostylus axostyle moves and resets under the reseting elasticity of screw thread spring 37, annular gear platform is made again to embed in another locating notch 321 corresponding, lock front luggage carrier and rear luggage carrier, both can not be separated themselves.
In addition, should also have a characteristic by use-case, exactly after attachment bolt assembly 38 is pulled down, front vehicle frame assembly and Rear frame component all can independently become two-wheeled folding trailer; For front vehicle frame assembly, pull bar continues as towing holding rod, and front luggage carrier continues as luggage carrier; But for Rear frame component, be that back shield is as support board using the axostylus axostyle in Rear frame component as towing holding rod.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (1)
1. have the Rear frame component for folding trailer of coupling mechanism, Rear frame component comprising rear luggage carrier (21), two rear wheel assemblies (22), being arranged on the back shield (23) of rear luggage carrier rear end and two attaching partss (24) for being connected back shield and rear luggage carrier, it is characterized in that: the left and right sides end of rear luggage carrier rear end is respectively provided with a rearwardly projecting rear traveller (211), each rear traveller is provided with the rear limiting block platform (212) of annular, and 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 attaching parts is provided with the first pivoted hole (241), rear gathering bearing surface (242), rear expansion bearing surface (243) and draws the rear arc transition face (244) of bearing surface and rear expansion bearing surface after connecting in, after each attaching parts and corresponding one, traveller is rotationally connected by the bearing pin (100) through the first pivoted hole and rear pin-and-hole (214), and the central axis of the first pivoted hole and the distance of rear expansion bearing surface are greater than the distance of this central axis and rear gathering bearing surface, the rear end of each attaching parts being provided with the second pivoted hole (245) for being rotationally connected with back shield, drawing bearing area (246) in and launching bearing area (247), draw bearing area in and be positioned at the side of the second pivoted hole away from the first pivoted hole, launch bearing area and be positioned at the side of the second pivoted hole close to the first pivoted hole, each rear wheel assemblies comprises the rear wheel frame (222) with rear sleeve (221), rear torsion spring (223) and rotates the rear wheel (224) be arranged on rear wheel frame, the front end of each rear sleeve is provided with the rear spacing double wedge (225) matched with each rear spacing teeth groove, after rear sleeve is set in corresponding one on traveller, rear torsion spring set is located on corresponding rear traveller, and is positioned within rear sleeve, back shield connects boss (231) after being provided with two, each rear connection boss is provided with rear axis hole (232) and the load flange (233) along rear luggage carrier horizontal direction evagination, each rear connection boss and a corresponding attaching parts are rotationally connected by the bearing pin (100) through rear axis hole and the second pivoted hole, load flange, in the process of rotating around the second pivoted hole along with rear connection boss, can be connected to the gathering bearing area of attaching parts and launch in bearing area, and then band follower link rotates, each rear expansion bearing surface is parallel to back shield place plane, and each rear gathering bearing surface is perpendicular to back shield place plane, back shield can rotate around rear axis hole in external force, until load flange is connected in the expansion bearing area of attaching parts, now the upper surface of back shield upper surface and rear luggage carrier is in same plane, Rear frame component comprises the coupling mechanism (3) for being connected with external front vehicle frame assembly, coupling mechanism (3) comprises two front pitmans (31) of the left and right sides end being arranged on front luggage carrier rear end, be fixedly installed on the locating wheel (32) on each front pitman, be arranged on pitman (33) after two of the left and right sides end of rear luggage carrier front end, be fixedly installed on the connection flange (34) on each rear pitman, the axostylus axostyle (35) that after running through two, pitman also can move back and forth in left-right direction, be fixedly installed on two annulars gear platform (36) on axostylus axostyle, for providing the screw thread spring (37) of reseting elasticity for axostylus axostyle, and for being rotationally connected the attachment bolt assembly (38) of each rear pitman and a corresponding locating wheel, the edge of each locating wheel is provided with two the arc shaped locating notches (321) be centrosymmetric, and each annular gear platform, in the process moved back and forth along with axostylus axostyle, embeds or shift out in a corresponding locating notch, described front vehicle frame assembly and Rear frame component can be superimposed after attachment bolt assembly (38) rotates 180 degree.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|
| CN105523068A true CN105523068A (en) | 2016-04-27 |
Family
ID=49600532
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812867.1A Pending CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201510815799.4A Withdrawn CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
| CN201310378405.4A Expired - Fee Related CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
| CN201510814788.4A Withdrawn CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
| CN201510815168.2A Withdrawn CN105523068A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly provided with connecting mechanism and used for folding trailer |
| CN201510814746.0A Withdrawn CN105480276A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with linkage mechanism |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812867.1A Pending CN106143556A (en) | 2013-08-27 | 2013-08-27 | A kind of Rear frame component for folding trailer with rotatable backboard |
| CN201510815799.4A Withdrawn CN105480277A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer |
| CN201310378405.4A Expired - Fee Related CN103407468B (en) | 2013-08-27 | 2013-08-27 | For the Rear frame component of folding trailer |
| CN201510814788.4A Withdrawn CN105480266A (en) | 2013-08-27 | 2013-08-27 | Rear frame assembly for foldable trailer with rotatable rear baffle |
Family Applications After (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (6) | CN106143556A (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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| US5072958A (en) * | 1991-02-19 | 1991-12-17 | Young Horace J | Hand truck |
| 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 |
| EP1222101A1 (en) * | 2000-08-18 | 2002-07-17 | 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 |
| CN201362272Y (en) * | 2009-03-13 | 2009-12-16 | 简世坤 | Dual-purpose folding 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 |
| US8465029B2 (en) * | 2011-08-25 | 2013-06-18 | Great Taiwan Material Handling Co. | Foldable handcart |
| US8602444B2 (en) * | 2011-12-09 | 2013-12-10 | Seville Classics Inc. | Foldable hand cart |
-
2013
- 2013-08-27 CN CN201510812867.1A patent/CN106143556A/en active Pending
- 2013-08-27 CN CN201510815799.4A patent/CN105480277A/en not_active Withdrawn
- 2013-08-27 CN CN201310378405.4A patent/CN103407468B/en not_active Expired - Fee Related
- 2013-08-27 CN CN201510814788.4A patent/CN105480266A/en not_active Withdrawn
- 2013-08-27 CN CN201510815168.2A patent/CN105523068A/en not_active Withdrawn
- 2013-08-27 CN CN201510814746.0A patent/CN105480276A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270673A (en) * | 1989-04-12 | 1990-11-05 | Takao Saito | Foldable flat car |
| CN2815807Y (en) * | 2005-12-16 | 2006-09-13 | 武汉箕星制冷有限公司 | Light transfer 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105480266A (en) | 2016-04-13 |
| CN105480276A (en) | 2016-04-13 |
| CN105480277A (en) | 2016-04-13 |
| CN103407468B (en) | 2015-12-02 |
| CN106143556A (en) | 2016-11-23 |
| CN103407468A (en) | 2013-11-27 |
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Application publication date: 20160427 |
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| WW01 | Invention patent application withdrawn after publication |