CN110281991A - Trolley - Google Patents
Trolley Download PDFInfo
- Publication number
- CN110281991A CN110281991A CN201910414509.3A CN201910414509A CN110281991A CN 110281991 A CN110281991 A CN 110281991A CN 201910414509 A CN201910414509 A CN 201910414509A CN 110281991 A CN110281991 A CN 110281991A
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- CN
- China
- Prior art keywords
- trolley
- chassis
- seat
- horizontal pin
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000013011 mating Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 22
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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
- 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
- B62B5/00—Accessories or details specially adapted for hand carts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/12—Perambulator bodies; Equipment therefor involving parts that are adjustable, attachable or detachable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
Abstract
The invention discloses a kind of trolleys, with unfolded state and folded state, chassis including being equipped with wheel, the opposite two sides of the chassis are provided with the side frame being rotatablely connected with it, horizontal pin is provided between side frames, horizontal pin and side frame surround the fence frame for accommodating child or cargo, the horizontal pin is more pole structures with cradle head, the both ends of the horizontal pin respectively pass through at least two rotational freedoms and are flexibly connected with corresponding side frame, when trolley folds, the horizontal pin is folded around cradle head, side frames are inwardly overturn simultaneously, until horizontal pin and side frame lie low close to the chassis.Trolley of the present invention can reduce longitudinal height of trolley by foldable fence, easy to operate.And structure is simple, it is easy to accomplish.
Description
Technical field
The present invention relates to a kind of trolley more particularly to a kind of multifunctional trolleys that folding volume is small.
Background technique
Often function is more single for existing trolley, is used only for children's ride-on or for transporting goods.In order to full
The a variety of demands of foot, some trolleys, can also be for the shopping cart in children's ride-on, such as supermarket after satisfaction is transported goods.
If CN103434554A discloses a kind of multi-purpose shopping cart, including car body and the movable wheel being arranged in below car body, described
The upper end of car body side is fixedly installed handle, another side bottom of the car body is provided with fixing seat, but shopping cart is past
Toward be it is not folding, the space that it is occupied as household is very big, it has not been convenient to storage and carry.
The multi-purpose wheelbarrow that CN207433596U one kind can fold, including two square framves, two every sides of square frame it
Between the intersection with two pairs of rotation connections brace, in two braces of a pair of cross, wherein one connects with the rotation of square frame
It connects, another is slidably matched with square frame, and when folding, two square framves are drawn close, and the brace angle of intersection changes, until connecing
It is close to be overlapped, but the cart does not have the function for children's ride-on.
United States Patent (USP) US9358445, which discloses one kind, can deliver cargo and the trolley for children's ride-on, including chassis,
It is provided with seat on chassis, turnover backrest is provided on seat, the back side of backrest has horizontal pin, the backrest vertical
State, the horizontal pin splice lock of the horizontal pin and adjacent two sides, forms the frame structure being generally rectangular.Because each
Horizontal pin is split type structure, clamp hand is easy when forming frame structure, there are security risks.
Summary of the invention
The present invention provides a kind of multifunctional trolleys easy to operate, safety is good.
A kind of trolley has unfolded state and folded state, and the chassis including being equipped with wheel, the chassis is opposite
Two sides are provided with the side frame being rotatablely connected with it, and horizontal pin is provided between side frames, and horizontal pin and side frame, which surround, to be used for
The fence frame of child or cargo is accommodated, the horizontal pin is more pole structures with cradle head, the horizontal pin
Both ends respectively pass through at least two rotational freedoms and be flexibly connected with side frame, when trolley folds, the horizontal pin is around rotation
Joint folds, while side frames are inwardly overturn, until horizontal pin and side frame lie low close to the chassis.
The rotational freedom refers to the direction that two objects relatively rotate, general related with the direction of shaft setting, such as
The shaft of two cradle heads of fruit is on the same line or to be parallel to each other, then it represents that it is identical for rotational freedom, otherwise it is assumed that
Rotational freedom is different, if the shaft of two cradle heads is vertical relation, then it represents that rotational freedom is mutually perpendicular to.
Such as to realize folding, one of them of described two rotational freedoms is identical as the rotational freedom of cradle head,
Another is identical as the overturning freedom degree of side frame.
From the point of view of structure simplification, it is preferred that the horizontal pin is eighty percent discount rod structure, and middle part is provided with rotation and closes
Section.
In order to maximize diminution volume, trolley when folding the cradle head move inward.
Close up in two sections of doublings of trolley folded state, the horizontal pin, the height of side frame can be allowed to maximize.
In order to avoid horizontal pin automatic folding, locking mechanism is provided at the cradle head.
The locking mechanism includes upper joint lid, hypozygal lid and ratchet between the two, the upper joint lid and under
The intracavity sidewall of joint lid has the limiting slot matched with the ratchet of ratchet, and being internally provided with for the hypozygal lid abuts spine
The reset spring of end face is taken turns, the side of upper joint lid back to the hypozygal lid pushes ratchet and is detached from upper joint when being provided with unlock
The button of lid.
The end of the horizontal pin is flexibly connected by universal joint with side frame.
The end of the horizontal pin is flexibly connected by Corner Link with side frame, the Corner Link and transverse gear
The end of bar is rotatablely connected, and rotational freedom is identical as the cradle head, and the Corner Link and corresponding side frame rotate
Connection, rotational freedom are identical as the freedom degree that side frame is overturn.
The side frame includes longitudinal bar and vertical bar, and the vertical bar top is fixedly connected with longitudinal bar, bottom
End is rotatablely connected with chassis, and the end of the longitudinal direction bar is flexibly connected with the end of horizontal pin.
In order to allow child to take, the chassis includes ring frame, is equipped with seat in ring frame, the seat back is set
It is equipped with turnover backrest, in trolley unfolded state, the backrest is rested in horizontal pin, in trolley folded state,
The backrest lies low close to the seat.
The ring frame both ends are respectively provided with a seat, and empty avoiding area is provided between two seats, and the empty avoiding area is equipped with
Lower than the footrest component at the seat.
The footrest component includes two and is set to below chassis with the support frame of ring frame rotation connection and set on two
Telescopic foot-driven lever between support and with support frame as described above rotation connection, in trolley folded state, support frame as described above to
Interior overturning, the foot-driven lever shorten and close to the chassis.
The inside of support frame as described above has the extended segment being rotatablely connected with foot-driven lever, in trolley unfolded state, the foot
Treadle and extended segment are in same level height.
The trolley includes two footrest components arranged side by side, is equipped between two adjacent support frames and inserts with them
Connect the connecting rod of cooperation.
The wheel includes front wheels and rear wheels, and the front wheels and rear wheels pass through front-wheel seat respectively and rear wheel seat is mounted on chassis
Lower section.
The front-wheel seat has the connecting shaft mating with chassis, fixing seat that there are two the back side settings of the chassis,
In trolley folded state, the front-wheel is inserted in fixing seat by connecting shaft, and in lying status close to the chassis.
The rear wheel seat and chassis are rotatablely connected, in trolley folded state, the inside side to overturn of rear wheel seat, after described
Wheel lies low the back side close to the chassis, be provided between the rear wheel seat and chassis keep rear wheel be in unfolded state with/
Or the lockable mechanism of folded state.
The lockable mechanism includes:
Through the lock pin of rear wheel seat；
Two pieces are set to the seat board for clamping the rear wheel seat on chassis and being rotatablely connected with the rear wheel seat, the seat board edge
There are two the lock grooves that folded state and unfolded state are respectively corresponded with the cooperation of the end of lock pin for tool；
Drive lock pin against the spring at seat board edge.
The lockable mechanism further include:
The fixed lock pin and the drive block for abutting spring, it is mobile that the side of the drive block is provided with perpendicular drive block
The drive rod of direction setting；
Driving lock pin exits the briquetting of lock groove, and there is opposite drive block moving direction to incline for the side of the briquetting
The waist-shaped hole for being tiltedly arranged and being slidably matched with the drive rod.
One end of the chassis is provided with the pull rod being rotatablely connected with it, in trolley folded state, the pull rod overturning
Close to the chassis.
The horizontal pin of trolley of the present invention is flexibly connected by least two freedom degrees with side frame, when horizontal pin folds
When, pull side frame inwardly to overturn, until the two lies low close to chassis, so as to reduce longitudinal height of trolley, the operation
It can be completed with a step, and structure is simple, it is easy to accomplish.
Detailed description of the invention
Fig. 1 is the simplified structure diagram of trolley of the present invention.
Fig. 2 is the structural schematic diagram of trolley intermediate state shown in Fig. 1.
Fig. 3 is the structural schematic diagram of trolley folded state shown in Fig. 1.
Fig. 4 is the structural schematic diagram of trolley unfolded state of the present invention.
Fig. 5 is the structural schematic diagram of trolley first folded state shown in Fig. 4.
Fig. 6 is the structural schematic diagram of the second folded state of trolley shown in Fig. 4.
Fig. 7 is the structural schematic diagram of trolley third folded state shown in Fig. 4.
Fig. 8 is the structural schematic diagram at the trolley back side shown in Fig. 4.
Fig. 9 is the structural schematic diagram of the 4th folded state of trolley shown in Fig. 4.
Figure 10 is the structural schematic diagram of the 5th folded state of trolley shown in Fig. 4.
Figure 11 is the structural schematic diagram of the 6th folded state of trolley shown in Fig. 4.
Figure 12 is the structural schematic diagram of the horizontal pin of trolley.
Figure 13 is the configuration schematic diagram of horizontal pin shown in Figure 12.
Figure 14 is the simplified structure diagram of horizontal pin.
Figure 15 is the simplified structure diagram of another horizontal pin.
Figure 16 is the structural schematic diagram of the footrest component of trolley.
Figure 17 is the configuration schematic diagram of footrest component shown in Figure 16.
Figure 18 is the structural schematic diagram of rod assembly.
Figure 19 is the configuration schematic diagram of rod assembly shown in Figure 18.
Figure 20 is the structural schematic diagram of part where hand push back wheels of vehicle.
Figure 21 is the structural schematic diagram of part where trolley rear-wheel under folded state.
Figure 22 is the configuration schematic diagram of part where hand push back wheels of vehicle.
Specific embodiment
As shown in figures 1 to 6, a kind of trolley has unfolded state and folded state, including chassis 1, side frame 2 and transverse gear
Bar 3, the lower section of chassis 1 are equipped with rear-wheel 4 and front-wheel 5, and 2 bottom of side frames and chassis 1 are rotatablely connected, and two horizontal pins 3 are set to
Between two side frames 2, both ends are flexibly connected with side frame 2 by least two freedom degrees, to constitute for accommodating child or goods
The generally rectangular fence of object.
Chassis 1 includes also generally rectangular ring frame 10, in order to meet the needs of children's ride-on, ring frame 10
Both ends setting there are two seat 11, the present embodiment ring frame 10 and seat 11 are split type structure, it is therefore apparent that ring frame 10
It can be integrally formed with seat 11.
The rear portion at seat 11 is provided with the backrest 7 being rotatablely connected with it, as shown in Figures 4 and 5, in trolley unfolded state,
Backrest 7 relies in horizontal pin 3, and tilts at a certain angle with plummet direction shape.In trolley folded state, backrest
7 inwardly overturnings, lie low on seat 11, top exceeds seat 11.
It is additionally provided with empty avoiding area 12 between two seats 11, is equipped with footrest component 8, footrest component in 12 position of empty avoiding area
8 are depressed below seat 11, and foot-driven lever 82 is between ring frame 10 and ground.It is usually additionally provided in empty avoiding area 12 and is covered on foot
The cloth set or string bag (not shown) on component 8 are stepped on, to form the storage space of relative closure.
In order to simplify structure, as illustrated in figures 4-5, side frame 2 includes longitudinal bar 21 and vertical bar 22, vertical bar 22
Bottom and ring frame 10 are rotatablely connected, and top is fixedly connected with longitudinal bar 21, and the end of longitudinal bar 21 and horizontal pin 3
End be flexibly connected, the inside of same side frame 2 is generally also equipped with cloth set, when storing cargo, prevents cargo from wearing from gap
It crosses and falls.Certain side frame can also use plate structure, can save setting cloth set, but higher cost.
In order to realize folding, as shown in Figures 12 and 13, horizontal pin 3 is eighty percent discount rod structure, it is by two sections of hollow tube bodies
34, connector 33 and cradle head 30 form, and Corner Link 32 has the open slot 320 cooperated with the rotation section 330 of connector 33,
When assembling, in 330 insertion opening slot 320 of rotation section, and it is used as rivet or the screw connection of shaft, outside Corner Link 32
Side is additionally provided with the trim 321 of capping rivet or screw.
Connector 33 and Corner Link 32 are rotatablely connected, and the rotational freedom of the two is identical as cradle head 30.Longitudinal gear
The end of bar 21 is again provided with connector 23, and connector 23 is rotatablely connected by shaft 24 and Corner Link 32, the rotation of the two
Freedom degree is identical as the overturning freedom degree of side frame 2.
As shown in figs. 1-7, when trolley folds, horizontal pin 3 is around 30 doubling of cradle head, while side frame 2 is inwardly overturn,
Until horizontal pin 30 and side frame lie low close to chassis 1, so as to reduce longitudinal height of trolley.Under normal circumstances,
Cradle head 30 moves inward when folding, and if being displaced outwardly, will increase the length of trolley.
In another embodiment, horizontal pin 3 is three pole structures, and when folding, interlude is moved inward, two sections of both ends
Rotation is mutually drawn close simultaneously, if interlude is short enough, identical folding effect equally may be implemented.As it can be seen that horizontal pin can
To be multisection type pole structure, as long as it being capable of symmetrical fold.
In order to avoid horizontal pin 9 is provided with locking mechanism at trolley unfolded state automatic folding, cradle head 30,
Locking mechanism includes upper joint lid 301, hypozygal lid 302 and ratchet 303 between the two, upper joint lid 301 and hypozygal
The intracavity sidewall of lid 302 has the limiting slot 309 that matches with the ratchet 304 of ratchet, hypozygal lid 302 be internally provided with to
The reset spring 305 of 303 end face of ratchet is connect, in order to limit the movement of reset spring 305, is provided in hypozygal lid 302 slotting
Enter the limited post 310 of reset spring 305.
The side of upper joint lid 301 back to hypozygal lid 302 pushes ratchet 303 and is detached from upper joint lid when being provided with unlock
301 button 306, the back side of button 306 are provided with several card bases 307, and card base 307 passes through the baffle inside upper joint lid 301
311, it can be prevented to be detached from upper joint lid 301.The back side of button 306 is additionally provided with the top pillar 308 across baffle 311, pressing
When button 306, top pillar 308 can push ratchet 303.
Ratchet 303 is detached from upper joint lid 301 when for the ease of folding, and the upper end of ratchet 304 is provided with inclined-plane, corresponding upper pass
The limiting slot bottom sides of section lid 201 are provided with the inclined-plane (not shown) matched, when upper joint lid 301 is with respect to hypozygal
When lid 302 rotates, two contact of incline plane can push ratchet 303 and be detached from upper joint lid 301.
There is one-directional rotation position-limit mechanism, connector 33 and Corner Link 32 between upper joint lid 301 and hypozygal lid 302
Between be again provided with one-directional rotation position-limit mechanism, the one-directional rotation position-limit mechanism, which refers to, has protrusion on two rotatable parts
Portion, when rotateing in place, two lug bosses are contradicted, and cradle head cannot continue to rotate, but can rotate backward.
As shown in figure 14, Corner Link 32 can be with horizontal pin 3 on the same line, it is of course possible to and longitudinal bar
21 on the same line, and Fig. 4 is only one of preferred embodiment, on the corner by connector setting, can allow folding
Folded volume is minimum, while the accommodation space of fence is maximum.
Another way of example, as shown in figure 15, the both ends of horizontal pin 3 are connected by universal joint 31 and side frame activity
It connects, identical invention effect equally may be implemented, the position of universal joint 31 is preferably provided at the corner of fence.
As shown in FIG. 16 and 17, footrest component 8 includes telescopic foot-driven lever 82 and two support frames 81 arranged symmetrically, branch
Support 81 is L-shaped, and the fixing seat 84 on top and ring frame 10 is rotatablely connected, and bottom end has horizontal extension section 810, horizontal extension
Section 810 is rotatablely connected with foot-driven lever 81, and in trolley unfolded state, horizontal extension section 810 and foot-driven lever 81 are in sustained height.
Foot-driven lever 82 is three stage structure, the active segment 821 including intermediate fixed section 822 and both ends, active segment 821 1
End is protruded into fixed section 822 and is slidably matched with it, and the other end is provided with the connector 823 being rotatablely connected with horizontal extension section 810.It is aobvious
And be clear to, foot-driven lever 82 is also possible to two-part structure or other Multi-section expansion structures.
In the present embodiment, there are two footrest components 8 for trolley tool, and respectively a corresponding seat 11, two footrest components 8 are logical
The connecting rod 83 mating with support frame 81 is crossed to connect.
When folding, two connecting rods 83 are pushed, so that support frame 81 is inwardly overturn, while two active segments 821 protrude into fixed section
In 822, foot-driven lever 82 shortens simultaneously close to chassis 1, and as shown in FIG. 10 and 11, support frame 81 is also to lie low from upright state overturning
State.
As shown in Figures 18 and 19, the front of ring frame 10 is provided with rod assembly 6, and rod assembly 6 includes pull rod 61 and connects
Joint chair 66, the bottom of pull rod 61 are provided with rotation seat 62, and rotation seat 62 is set between two seat boards 660 of attachment base 66, and is led to
The connection of shaft (not shown) is crossed, shaft can select rivet or screw.For good appearance, 66 two sides of attachment base are provided with
Shell 67 cooperates with rotation seat 62 attachment base 66 being coated on inside.
Waist-shaped hole 620 is provided on rotation seat 62, rotation seat 62 is inserted into the bottom of pull rod 61, its corresponding side is also equipped with
Waist-shaped hole, locking pin 64 pass through two waist-shaped holes, and both ends extend to seat board 660, and the edge of seat board 660 has several and locking pin
The lock slots 661 of 64 cooperations.By allowing locking pin 64 to cooperate from different lock slots 661, the tilt angle of adjusting yoke 61, side
Just it uses.
The drive block 65 for being internally provided with fixing lock rationed marketing 62 of pull rod 61, drive block 65 pass through the connection unlock of bracing wire 651
Pull-button 63,651 upper sleeve through of bracing wire have reset spring 68, and 68 one end of reset spring is pressed against drive block, and driving locking pin 64 is pressed against seat
The edge of plate 660, it is automatic to lock when the position for turning to lock slots 661.When needing to unlock, then unlock pull-button 63 is pulled, is made
It obtains 65 compression reseting spring 68 of drive block to move up, until locking pin 64 is detached from lock slots 661, pull rod 61 can restore to turn again
It is dynamic.
As illustrated in figs 20-22, rear-wheel 4 is mounted on the lower section of chassis 1 by rear wheel seat 9, and the back side of chassis 1 is provided with after
The mounting base 97 that wheel seat 9 cooperates, mounting base 97 include the seat board 970 of two clamping rear wheel seats 9, and seat board 970 is by shaft with after
Wheel seat 97 is rotatablely connected.Lockable mechanism is provided between rear wheel seat 9 and mounting base 97.
Lockable mechanism includes lock pin 94 and driving lock pin 94 the answering against 970 edge of seat board through rear wheel seat 9
Position spring 96, the edge of seat board 970 have the lock groove 971 and lock groove 972 that cooperate with lock pin 94.
It is provided with cavity 91 on rear wheel seat 9 and covers the cover board 910 of cavity 91, lockable mechanism further includes being set in cavity
Fixation lock pin 94 drive block 93, reset spring 96 abut drive block 93, the side of drive block 93 is provided with moves with it
The vertical drive rod 95 in direction.
It is additionally provided with briquetting 92 on rear wheel seat 9, there is opposite 93 moving direction of drive block to be obliquely installed in briquetting 92
Waist-shaped hole 98, drive rod 95 be inserted into waist-shaped hole 98 be slidably matched with it.Briquetting 92 is pinned when unlock, waist-shaped hole 98, which squeezes, to be driven
Lever 95, so that drive block 93 moves down, compression reseting spring 96, so that lock pin 94 exits lock groove.
When rear wheel seat 9 is rotated relative to mounting base 97, due to the active force of reset spring 96, lock pin 94 is pressed against always seat
The edge of plate 970, when it falls into lock groove, lockable mechanism locking, rear-wheel 4 can not be rotated.There is 971 He of lock groove on seat board
Lock groove 972 respectively corresponds the folded state and unfolded state of rear-wheel, when lock pin 94 falls into lock groove 971, as Fig. 9,10,
Shown in 20 and 21, rear-wheel 4 lies low close to chassis 1, when lock groove 94 falls into lock groove 972, the upright vertical chassis 1 of rear-wheel 4.
Front-wheel 5 is mounted on the lower section of chassis 1 by front-wheel seat 51, and the corner of ring frame 10 is provided with inserts with front-wheel seat 51
The mounting base 15 of cooperation is connect, front-wheel seat 51 has the connecting shaft 52 (dotted portion) of insertion mounting base 15.It is set in the back side of chassis 1
It is equipped with cross bar 13, setting has the spliced eye mating for connecting shaft 52 in fixing seat 14 there are two fixing seat 14 on cross bar.
In trolley folded state, as shown in FIG. 8 and 9, two front-wheels 5, which are inserted, to be hung in fixing seat 14, and in lying status the bottom of close to
Frame 1.
The positive folding mode of trolley of the present invention as shown in figs. 4-7, in trolley unfolded state, erect, side frame by side frame 2
2 constitute fence with horizontal pin 3, and backrest 7 is relied in horizontal pin 3, can be taken for child, in order to avoid backrest 7 is natural
Overturning, can be set locking mechanism between backrest 7 and horizontal pin 3.
If necessary to load cargo, leaned against on seat 11 as shown in figure 5, backrest 7 can be overturn.If fence is to cargo
Restricted, as shown in fig. 6, can be got up with fence folding, when folding, only needs push button 306, and cradle head 30 is allowed to unlock, and
It pushes it to move inward, horizontal pin 3 is folded around cradle head 30, while side frame 2 being driven inwardly to overturn, until being both in
Lying status sticks on chassis 1, and trolley is deformed into the device similar to flat car at this time.
If necessary to which trolley is accepted storage, then unlock pull-button 63 is pulled again, rod assembly 6 is unlocked, such as Fig. 7 institute
Show, overturn pull rod 61, until lying low close to chassis 1.
The folding mode at the trolley back side of the present invention as illustrated in figs. 8-11 because front-wheel be it is dismountable, when needing to fold,
It is disassembled from mounting base 15, directly inserts and hangs in fixing seat 14, is lain low close to chassis 1.Press briquetting 92, unlock lock
Locking mechanism allows rear-wheel 4 to overturn to lying status, and close to chassis 1.Last fold inward support frame 81, the shortening of foot-driven lever 82 are leaned on
Nearly chassis 1.Reduce the vertical height of trolley, easy to carry and storage on the whole.
Claims (21)
1. a kind of trolley, there is unfolded state and folded state, the chassis including being equipped with wheel, the chassis it is opposite two
Side is provided with the side frame being rotatablely connected with it, and horizontal pin is provided between side frames, and horizontal pin and side frame are surrounded for holding
Receive the fence frame of child or cargo, which is characterized in that the horizontal pin is more pole structures with cradle head, described
The both ends of horizontal pin respectively pass through at least two rotational freedoms and are flexibly connected with corresponding side frame, when trolley folds, the cross
It is folded to bar around cradle head, while side frames are inwardly overturn, until horizontal pin and side frame lie low close to the chassis.
2. trolley as described in claim 1, which is characterized in that one of them of described two rotational freedoms is closed with rotation
The rotational freedom of section is identical, another is identical as the overturning freedom degree of side frame.
3. trolley as described in claim 1, which is characterized in that the horizontal pin is eighty percent discount rod structure, and middle part is provided with
Cradle head.
4. trolley as claimed in claim 3, which is characterized in that the cradle head moves inward when trolley folding.
5. trolley as described in claim 3 or 4, which is characterized in that in trolley folded state, the two of the horizontal pin
Section doubling is closed up.
6. trolley as claimed in claim 3, which is characterized in that be provided with locking mechanism at the cradle head.
7. trolley as claimed in claim 6, which is characterized in that the locking mechanism include upper joint lid, hypozygal lid with
And ratchet between the two, the intracavity sidewall of the upper joint lid and hypozygal lid have the limit matched with the ratchet of ratchet
Slot, the hypozygal lid are internally provided with the reset spring for abutting ratchet end face, and the upper joint lid is back to hypozygal lid
Side is provided with and pushes the button that ratchet is detached from upper joint lid while compression reseting spring when unlock.
8. trolley as described in claim 1, which is characterized in that the end of the horizontal pin is living by universal joint and side frame
Dynamic connection.
9. trolley as described in claim 1, which is characterized in that the end of the horizontal pin respectively pass through Corner Link with
Side frame is flexibly connected, and the end of the Corner Link and horizontal pin is rotatablely connected, and rotational freedom and the rotation are closed
Save identical, the Corner Link and side frame are rotatablely connected, and rotational freedom is identical as the overturning freedom degree of side frame.
10. trolley as described in claim 1, which is characterized in that the side frame includes longitudinal bar and vertical bar, described
Vertical bar top is fixedly connected with longitudinal bar, and bottom end and chassis are rotatablely connected, the end of the longitudinal direction bar and transverse gear
The end of bar is flexibly connected.
11. trolley as described in claim 1, which is characterized in that the chassis includes ring frame, is equipped with seat in ring frame
Position, the seat back is provided with turnover backrest, and in trolley unfolded state, the backrest is rested in horizontal pin,
In trolley folded state, the backrest lies low close to the seat.
12. trolley as claimed in claim 11, which is characterized in that the ring frame both ends are respectively provided with a seat, two seats
It is provided with empty avoiding area between position, the empty avoiding area is equipped with the footrest component lower than the seat.
13. trolley as claimed in claim 12, which is characterized in that the footrest component include two be set to chassis below with
The support frame of ring frame rotation connection and the telescopic foot being rotatablely connected between two support frames and with support frame as described above
Treadle, in trolley folded state, support frame as described above is inwardly overturn, and the foot-driven lever shortens and close to the chassis.
14. trolley as claimed in claim 13, which is characterized in that the inside of support frame as described above, which has to rotate with foot-driven lever, to be connected
The extended segment connect, in trolley unfolded state, the foot-driven lever and extended segment are in same level height.
15. trolley as claimed in claim 13, which is characterized in that the trolley includes two arranged side by side foot-operated groups
Part is equipped with the connecting rod mating with them between two adjacent support frames.
16. trolley as described in claim 1, which is characterized in that the wheel includes front wheels and rear wheels, and the front-wheel is with after
Wheel is mounted below chassis by front-wheel seat and rear wheel seat respectively.
17. trolley as claimed in claim 16, which is characterized in that the front-wheel seat has the connection mating with chassis
Axis, there are two fixing seats for the back side setting of the chassis, and in trolley folded state, the front-wheel is inserted in fixation by connecting shaft
On seat, and in lying status close to the chassis.
18. the trolley as described in claim 16 or 17, which is characterized in that the rear wheel seat and chassis are rotatablely connected, in hand
Cart folded state, the inside side to overturn of rear wheel seat, the rear-wheel lie low the back side close to the chassis, the rear wheel seat and
The lockable mechanism for keeping rear wheel to be in unfolded state and/or folded state is provided between chassis.
19. trolley as claimed in claim 18, which is characterized in that the lockable mechanism includes:
Through the lock pin of rear wheel seat；
Two pieces are set to the seat board for clamping the rear wheel seat on chassis and being rotatablely connected with the rear wheel seat, and the seat board edge has
Two respectively correspond the lock groove of folded state and unfolded state with the end cooperation of lock pin；
Drive the spring on lock pin leaning seat edges of boards edge.
20. trolley as claimed in claim 19, which is characterized in that the lockable mechanism further include:
The fixed lock pin and the drive block for abutting spring, the side of the drive block are provided with perpendicular drive block moving direction
The drive rod of setting；
Driving lock pin exits the briquetting of lock groove, and there is opposite drive block moving direction inclination to set for the side of the briquetting
The waist-shaped hole set and be slidably matched with the drive rod.
21. trolley as described in claim 1, which is characterized in that one end of the chassis is provided with to be rotatablely connected with it
Pull rod, in trolley folded state, the pull rod is overturn close to the chassis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019203049200 | 2019-03-11 | ||
| CN201920304920 | 2019-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110281991A true CN110281991A (en) | 2019-09-27 |
Family
ID=68002074
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920715992.4U Active CN210310429U (en) | 2019-03-11 | 2019-05-17 | Handcart with foldable wheels |
| CN201920715999.6U Active CN210310430U (en) | 2019-03-11 | 2019-05-17 | Hand cart |
| CN201910414509.3A Pending CN110281991A (en) | 2019-03-11 | 2019-05-17 | Trolley |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920715992.4U Active CN210310429U (en) | 2019-03-11 | 2019-05-17 | Handcart with foldable wheels |
| CN201920715999.6U Active CN210310430U (en) | 2019-03-11 | 2019-05-17 | Hand cart |
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| Country | Link |
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| CN (3) | CN210310429U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123216A (en) * | 2020-09-22 | 2020-12-25 | 北京宝圣得机械有限公司 | Sand blasting device for inner cavity of hub |
| CN114537499A (en) * | 2020-11-24 | 2022-05-27 | 绍兴上虞日星五金制品有限公司 | Children's carrier |
| CN115107850A (en) * | 2022-08-09 | 2022-09-27 | 广东乐美达集团有限公司 | Foldable baby trailer frame |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210310429U (en) * | 2019-03-11 | 2020-04-14 | 晨辉婴宝儿童用品有限公司 | Handcart with foldable wheels |
| CN117141557B (en) * | 2023-11-01 | 2024-02-06 | 常州凯盛新材料股份有限公司 | PVC floor conveying equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN210310429U (en) | 2020-04-14 |
| CN210310430U (en) | 2020-04-14 |
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