CN112092893B - Multifunctional carriage - Google Patents
Multifunctional carriage Download PDFInfo
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- CN112092893B CN112092893B CN202011008706.4A CN202011008706A CN112092893B CN 112092893 B CN112092893 B CN 112092893B CN 202011008706 A CN202011008706 A CN 202011008706A CN 112092893 B CN112092893 B CN 112092893B
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- carriage
- pushing
- seat
- stay bar
- push rod
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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
- 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
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
本发明公开了一种多功能拖板，包括拖板本体、设于拖板本体底部的轮组件及推行组件，推行组件包括能够沿自身长度方向收折的推杆架，以及能够相对推杆架打开或收折的座位，其中，推杆架既能够相对转动又能够沿拖板本体的前后方向相对滑动地与拖板本体连接，拖板具有拖行工作状态和推行工作状态，当拖板处于拖行工作状态时，推杆架沿长度方向收折并与座位相互收拢，推行组件收拢在拖板本体的底部；当拖板处于推行工作状态时，推杆架沿自身长度方向展开并自后向前逐渐向上倾斜延伸，座位相对推杆架展开并位于拖板本体的上方。本发明的多功能拖板既可以嫁接在童车尾部拖行，又可以单独推行，供儿童乘坐在其上，从而满足不同场景下的使用需要。
The present invention discloses a multifunctional carriage, comprising a carriage body, a wheel assembly and a pushing assembly arranged at the bottom of the carriage body, wherein the pushing assembly comprises a push rod frame that can be folded along its own length direction, and a seat that can be opened or folded relative to the push rod frame, wherein the push rod frame can be relatively rotated and can be relatively slidably connected to the carriage body along the front-rear direction of the carriage body, and the carriage has a towing working state and a pushing working state, when the carriage is in the towing working state, the push rod frame is folded along the length direction and folded with the seat, and the pushing assembly is folded at the bottom of the carriage body; when the carriage is in the pushing working state, the push rod frame is unfolded along its own length direction and gradually extends upward from the back to the front, and the seat is unfolded relative to the push rod frame and is located above the carriage body. The multifunctional carriage of the present invention can be grafted on the rear of a baby carriage for towing, and can also be pushed alone for children to sit on, thereby meeting the use needs in different scenarios.
Description
Technical Field
The invention relates to the field of children products, in particular to a multifunctional carriage.
Background
In the prior art, a child carriage is typically fixedly attached to the rear of the stroller to facilitate the advancement of another child along with the stroller while the stroller is being pushed while standing on the rear side of the stroller. The existing children carriage has single function and short service life, and can not meet the use requirements in more scenes.
Disclosure of Invention
The invention aims to provide a multifunctional carriage which can be grafted at the tail of a baby carrier for towing and can be converted into a cart for independent pushing.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The multifunctional carriage comprises a carriage body, a wheel assembly arranged at the bottom of the carriage body, a pushing assembly and a seat, wherein the pushing assembly comprises a push rod frame capable of being folded along the length direction of the carriage body, and the seat can be unfolded or folded relative to the push rod frame, the push rod frame can rotate relatively and can slide relatively along the front-back direction of the carriage body and is connected with the carriage body, the carriage is provided with a pulling working state and a pushing working state, when the carriage is in the pulling working state, the push rod frame is folded along the length direction and is mutually folded with the seat, the pushing assembly is folded at the bottom of the carriage body, when the carriage is in the pushing working state, the push rod frame is unfolded along the length direction of the carriage and gradually extends upwards from back to front, and the seat is unfolded relative to the push rod frame and is located above the carriage body.
Preferably, one end of the seat is rotatably connected to the push rod frame, the pushing assembly further comprises a support rod frame for supporting the seat and the carriage body in the pushing working state, the support rod frame is connected to the carriage body when the carriage is in the pushing working state, and the support rod frame is separated from the supporting plate body and is mutually folded with the push rod frame and the seat when the carriage is in the pulling working state.
Preferably, the strut frame includes an upper strut and a lower strut which extend in the vertical direction in the pushing working state, the lower end of the upper strut is detachably connected with the upper end of the lower strut, and when the carriage is in the pushing working state, the upper strut and the lower strut extend in the same vertical direction and are supported between the carriage body and the seat.
Preferably, the brace frame further comprises an inclined brace, one end of the inclined brace is rotatably connected with the seat or the push rod frame, the other end of the inclined brace is rotatably connected with the lower brace, when the carriage is in the towing operation state, the upper brace and the lower brace are mutually detached, the upper brace is folded at the bottom of the seat, and the lower brace and the inclined brace are mutually folded at the bottom of the seat.
Preferably, a first locking mechanism for locking the upper stay bar and the lower stay bar relatively is arranged between the upper stay bar and the lower stay bar, a second locking mechanism for locking the lower stay bar and the carriage body relatively is arranged between the lower stay bar and the carriage body, and the first locking mechanism and the second locking mechanism are synchronously locked and/or linked and unlocked.
Preferably, the carriage body is provided with a mounting hole for the lower end part of the lower stay bar to be inserted in a matched manner, the carriage body is also provided with a lock hole communicated with the mounting hole, the second locking mechanism comprises a linkage sliding block which can be arranged on the lower stay bar in a sliding manner along the length direction of the lower stay bar, a lock tongue which is arranged on the lower end part of the lower stay bar in a sliding manner along the length direction perpendicular to the lower stay bar, and an elastic piece for providing acting force required by the movement of the lock tongue towards the lock hole, a wedge-shaped surface matched with each other is arranged between the lower part of the linkage sliding block and the lock tongue, the upper end part of the lower stay bar is provided with an insertion hole for the lower end part of the upper stay bar to be inserted in a matched manner, and when the lower end part of the upper stay bar is inserted in the insertion hole and the first locking mechanism is locked, the linkage sliding block slides downwards and drives the lock tongue to be inserted in the lock hole in a matched manner.
Preferably, a guide groove extending along the front-rear direction and used for providing sliding guide for the push rod frame is arranged at the bottom of the carriage body, a push rod connector is rotatably connected to one end of the push rod frame through a rotating shaft, the push rod connector can be slidably connected with the carriage body along the extending direction of the guide groove, when the carriage is in the towing working state, the rotating shaft is positioned in the guide groove, and when the carriage is in the pushing working state, the rotating shaft is positioned outside the guide groove.
Preferably, the push rod frame comprises two push rods which are parallel to each other and are arranged at intervals, the seat is connected between the two push rods, and when the carriage is in the towing operation state, the seat is folded between the two push rods.
Preferably, the carriage further comprises a carriage, the carriage comprises a carriage end, a carriage rod body with one end rotatably connected to the carriage end through a rotating shaft, and a carriage connecting piece arranged at the other end of the carriage rod body, the carriage body is provided with a containing groove extending along the front-back direction and used for providing sliding guide for the carriage, the carriage end is arranged in the containing groove in a sliding fit mode, when the carriage is in the towing working state, the carriage rod body and the rotating shaft are both located outside the containing groove, and when the carriage is in the pushing working state, the carriage rod body and the rotating shaft are both located in the containing groove.
Preferably, the wheel assembly comprises a front wheel assembly arranged at the front part of the bottom of the carriage body and a rear wheel assembly arranged at the rear part of the bottom of the supporting plate body, wherein the rear wheel assembly comprises a wheel seat and a rear wheel arranged at the bottom of the wheel seat, the wheel seat is rotationally connected to the carriage body through a universal shaft, a wheel seat locking mechanism for locking the wheel seat and the carriage body relative to each other is arranged between the wheel seat and the carriage body, when the carriage is in the towing operation state, the wheel seat locking mechanism is in an unlocking state, and when the carriage is in the pushing operation state, the wheel seat locking mechanism is in a locking state.
Compared with the prior art, the multifunctional carriage has the advantages that through the conversion between the dragging working state and the pushing working state, the multifunctional carriage can be grafted on the tail of the baby carriage for dragging, can be used for children to sit and be pushed independently, and therefore the use requirements in different scenes are met.
Drawings
FIG. 1 is a schematic perspective view of a multifunctional carriage according to an embodiment of the present invention in a pushing state;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line 1-1 of FIG. 2;
fig. 4 is a schematic perspective view of the push rod frame of the multifunctional carriage in the folding process of the push rod frame of the multifunctional carriage;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a cross-sectional view taken along line 2-2 of FIG. 5;
FIG. 7 is a perspective view of the push rod frame of the multifunctional carriage in the present embodiment when folded and rotated to a horizontal state;
FIG. 8 is a side view of FIG. 7;
FIG. 9 is a cross-sectional view taken along line 3-3 of FIG. 8;
FIG. 10 is a top view of FIG. 7;
FIG. 11 is a cross-sectional view taken along line 4-4 of FIG. 10;
FIG. 12 is a schematic perspective view from the bottom of FIG. 7;
FIG. 13 is a schematic perspective view of the multifunctional carriage in the present embodiment in a towing operation state;
FIG. 14 is a side view of FIG. 13;
FIG. 15 is a cross-sectional view taken along line 5-5 of FIG. 14;
FIG. 16 is an enlarged schematic view of FIG. 15 at A;
FIG. 17 is a top view of FIG. 13;
FIG. 18 is a cross-sectional view taken along line 6-6 of FIG. 17
FIG. 19 is a perspective view of the multifunctional carriage of the present embodiment when the push rod rack and the carriage are both retracted into the carriage body;
FIG. 20 is a side view of FIG. 19;
FIG. 21 is a cross-sectional view taken along line 7-7 of FIG. 20;
FIG. 22 is an enlarged schematic view of FIG. 21 at B;
FIG. 23 is a top view of FIG. 19;
FIG. 24 is a cross-sectional view taken along line 8-8 of FIG. 23
FIG. 25 is a schematic perspective view of the multifunctional carriage in the present embodiment in a towing operation state and connected to a stroller;
FIG. 26 is a side view of FIG. 25;
FIG. 27 is a top view of FIG. 25;
1, a carriage body; 11, a guide groove, 12, a pushing component accommodating cavity, 13, an accommodating groove, 14, a pushing component locking piece;
2. wheel assembly, 21, front wheel assembly, 22, rear wheel assembly, 221, wheel seat, 222, rear wheel, 2221, wheel axle;
3. Push assembly, 31, push rod frame, 311, push rod, 32, seat, 331, upper stay, 332, lower stay, 333, diagonal stay, 351, upper stay bolt, 352, upper stay lock hole, 361, insertion hole, 362, linkage slide block, 3621, limit pin shaft, 3622, limit chute, 363, mounting hole, 364, lock hole, 365, fourth elastic element, 366, bolt, 3623, wedge surface;
4. The device comprises a towing bar, 41, a sliding bar body, 411, a towing bar end, 412, a fifth elastic piece, 413, a first positioning locking groove, 414, a second positioning locking groove, 415, a towing bar positioning pin shaft, 42, a towing bar body, 421, a rotating shaft, 43 and a towing connection piece;
5. The wheel seat locking mechanism comprises a wheel seat locking mechanism, a 511, a lock pin, a 512, a lock groove, a 513, a first elastic piece, a 521, a mounting slide block, a 522, a pushing inclined plane, a 523, a second elastic piece, a 531, a driving slide block, a 532, a driving inclined plane, a 533 and a third elastic piece;
6. the baby carriage comprises a baby carriage body, 61, a carriage frame, 611, a rear bracket, 612, a rear cross bar, 62, carriage front wheels, 63 and carriage rear wheels.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
The following description of the directions up and down, front and back, left and right, inside and outside, etc. is defined with reference to the directions observed when a child sits or stands on the carriage.
The multifunctional carriage as shown in fig. 1 comprises a carriage body 1, a wheel assembly 2 arranged at the bottom of the carriage body 1, wherein the wheel assembly 2 specifically comprises a front wheel assembly 21 arranged at the front part of the bottom of the carriage body 1 and a rear wheel assembly 22 arranged at the rear part of the bottom of the carriage body 1, the rear wheel assembly 22 comprises a wheel seat 221 rotationally connected at the bottom of the carriage body 1 through a universal shaft (not shown in the figure), and a rear wheel 222 rotationally connected at the bottom of the wheel seat 221 through a wheel axle 2221, in the embodiment, the front wheel assembly 21 and the rear wheel assembly 22 are respectively provided with two groups, and the structure of the front wheel assembly 21 is the same as that of the rear wheel assembly 22.
As shown in fig. 1, the carriage further includes a pushing assembly 3 disposed at the rear of the carriage body 1, and the pushing assembly 3 includes a push rod frame 31 that can be extended and retracted in a longitudinal direction thereof, and a seat 32 that can be opened or retracted with respect to the push rod frame 31. In this embodiment, the push rod rest 31 includes two push rods 311 parallel to each other and arranged at intervals, the seat 31 is connected between the two push rods 311, the rear end portion of the seat 32 is rotatably connected to the push rod rest 31, and the push rod rest 31 is connected to the carriage body 1 so as to be capable of relatively rotating and relatively sliding in the front-rear direction of the carriage body 1.
As shown in fig. 13 and 18, the carriage further includes a carriage 4 disposed at the front portion of the carriage body 1, the carriage 4 includes a front-section carriage rod 42 and a rear-section sliding rod 41, the carriage rod 42 is rotatably connected with the sliding rod 41 through a rotation shaft 421, a carriage connecting member 43 is disposed at a front end portion of the carriage rod 42, a carriage rod end 411 is disposed at a rear end portion of the sliding rod 41, a receiving groove 13 extending in a front-rear direction and for providing sliding guide of the carriage 4 is disposed on the carriage body 1, and the sliding rod 41 is slidably disposed in the receiving groove 13. The hauling rod 4 has an open state in which both the hauling rod body 42 and the rotation shaft 421 extend out of the accommodating groove 13, and a retracted state in which both the hauling rod body 42 and the rotation shaft 421 are located in the accommodating groove 13.
As shown in fig. 1 and 13, the multifunctional carriage has a towing operation state and a pushing operation state. As shown in fig. 1, when the carriage is in the pushing operation state, the push rod frame 31 is unfolded in the longitudinal direction thereof and gradually extends obliquely upward from the rear to the front, the seat 32 is unfolded relative to the push rod frame 31 and positioned above the carriage body 1, and the carriage 4 is in the retracted state in which a child can sit on the seat 32 and an adult pushes in the rear. As shown in fig. 13, when the carriage is in a towing operation state, the push rod frame 31 is folded along the length direction and is mutually folded with the seat 32, the seat 32 is folded between the two push rods 311, the pushing assembly 3 is folded at the bottom of the carriage body 1, at this time, the carriage 4 is in an open state, the carriage rod body 42 can rotate around the rotation shaft 421, so that the carriage connecting piece 43 can be hooked on the carriage rod pieces of children with different heights, in this state, the children can stand on the carriage body 1, and the adult pushes the carriage to drive the children to move forward.
Fig. 25 to 27 show an embodiment of the carriage in a towing operation state, a stroller 6 includes a stroller frame 61, a stroller front wheel 62 disposed at a bottom front portion of the stroller frame 61, and a stroller rear wheel 63 disposed at a bottom rear portion of the stroller frame 61. The cart frame 61 includes left and right sets of rear brackets 611 each having a bottom portion connected to the rear wheel 63, and a rear cross bar 612 connected between the left and right sets of rear brackets 611. When the carriage is in the towing operation state, the towing connection piece 43 is hooked on the rear cross bar 612, so that the carriage is grafted at the tail part of the baby carriage 6, and the towing function is realized.
As shown in fig. 1, the pushing assembly 3 further includes a stay for supporting between the seat 32 and the carriage body 1 in the pushing operation state, the stay including an upper stay 331, a lower stay 332, and an inclined stay 333. As shown in fig. 1 and 2, in the pushing operation state, the stay is connected to the carriage body 1, the upper stay 331 and the lower stay 332 extend in the same vertical direction and are supported between the carriage body 1 and the seat 32, the lower end portion of the upper stay 331 is detachably connected to the upper end portion of the lower stay 332, the upper end portion of the diagonal stay 333 is rotatably connected to the push rod 31, and the lower end portion is rotatably connected to the lower stay 332. As shown in fig. 4 to 12, when the carriage is shifted from the pushing operation state to the towing operation state, the stay frame is separated from the carriage body 1 and is folded together with the push rod frame 31 and the seat 32, the upper stay 331 is separated from the lower stay 332, and the upper stay 331 is folded together with the bottom of the seat 32, and the lower stay 332 and the diagonal stay 333 are folded together with the bottom of the seat 32.
As shown in fig. 3 and 6, a first locking mechanism for locking the upper stay 331 and the lower stay 332 relative to each other is provided between the lower stay 332 and the carriage body 1, and a second locking mechanism for locking the lower stay 332 and the carriage body relative to each other is provided between the first locking mechanism and the second locking mechanism so as to be synchronously locked and unlocked in a linked manner.
As shown in fig. 3 and 6, the upper end portion of the lower stay 332 is provided with an insertion hole 361 into which the lower end portion of the upper stay 331 is fittingly inserted, and the first locking mechanism includes an upper stay lock tongue 351 slidably provided at the lower portion of the upper stay 331 perpendicular to the length direction of the upper stay 331, an upper stay lock hole 352 provided on the insertion hole 361 into which the upper stay lock tongue 351 is fittingly inserted, and an elastic member (not shown) for providing a force required for moving the upper stay lock tongue 351 toward the upper stay lock hole 352.
As shown in fig. 3 and 6, the carriage body 1 is provided with a mounting hole 363 into which the lower end portion of the lower stay 332 is inserted in a fitting manner, and the carriage body 1 is also provided with a lock hole 364 communicating with the mounting hole 363. The second locking mechanism includes a linkage slider 362 slidably disposed on the lower stay 332 along the length direction of the lower stay 332, a latch 366 slidably disposed on the lower end of the lower stay 332 along the length direction perpendicular to the lower stay 332, and an elastic member, specifically a fourth elastic member 365, for providing a force required for moving the latch 366 away from the lock hole 364, wherein a wedge-shaped surface 3623 is disposed between the lower portion of the linkage slider 362 and the latch 366.
As shown in fig. 3, when the lower end portion of the upper stay 331 is inserted into the insertion hole 361, the linkage slider 362 is pushed to slide downward, and the lock tongue 366 is driven to be inserted into the lock hole 364 in a matched manner, when the upper stay 33 is inserted into the insertion hole 361, the upper stay lock tongue 351 is inserted into the upper stay lock hole 352 in a matched manner, and the first locking mechanism is locked, and at this time, the lock tongue 366 is correspondingly inserted into the lock hole 364 to lock the second locking mechanism, so that the synchronous locking between the first locking mechanism and the second locking mechanism is realized. Similarly, as shown in fig. 6, when the lower end portion of the upper stay 331 is released from the insertion hole 361 after the first locking mechanism is unlocked, the lock tongue 366 is released from the lock hole 364 under the action of the fourth elastic member 365, so that the second locking mechanism is unlocked, and thus, the second locking mechanism and the first locking mechanism are unlocked in a linkage manner.
In addition, as shown in fig. 3 and 6, in this embodiment, a section of limiting chute 3622 extending along the length direction of the linking slide block 362 is further opened, and a limiting pin 3621 is fixed on the lower stay 332, and the limiting pin 3621 is cooperatively inserted into the limiting chute 3622 to limit the linking slide block 362 from being separated from the lower stay 332 when sliding up and down.
As shown in fig. 9, the bottom of the carriage body 1 is provided with a guide groove 11 extending in the front-rear direction for providing sliding guide of the push rod rest 31, and the lower end portion of the push rod rest 31 is rotatably connected with a push rod joint (not shown in the drawings) through a rotation shaft (not shown in the drawings), the push rod joint being slidably connected with the carriage body 1 in the extending direction of the guide groove 11. When the carriage is in the dragging working state, the rotating shaft is positioned in the guide groove 11, and when the carriage is in the pushing working state, the rotating shaft is positioned outside the guide groove 11, the push rod frame 31 can rotate around the rotating shaft, and the connection relationship and the rotation principle of the push rod frame 31 and the carriage body 1 are similar to those of the carriage body 4, and are not repeated here. As shown in fig. 9 to 12, the bottom of the carriage body 1 is further provided with a pushing assembly housing chamber 12 for housing the pushing assembly 3 when the carriage is in the towing operation state, and a pushing assembly locking piece 14 for locking the pushing assembly 3.
As shown in fig. 15, 16, 21 and 22, the boom 4 is positioned between the two sets of rear wheel assemblies 22 in the left-right direction, and a wheel seat locking mechanism 5 for locking the wheel seat 221 and the boom body 1 relative to each other is provided between them. When the carriage is in a dragging working state, the wheel seat locking mechanism 5 is in an unlocking state, the front wheel assembly 21 and the rear wheel assembly 22 can all rotate in a universal mode, when the carriage is in a pushing working state, the wheel seat locking mechanism 5 is in a locking state, the wheel seat 221 of the rear wheel assembly 22 cannot rotate in a universal mode relative to the carriage body 1, and only the front wheel assembly 21 has a universal rotation function, so that steering is facilitated when the carriage is pushed. When the hauling rod 4 is switched from the open state to the retracted state, the wheel seat locking mechanism 5 is driven to be switched from the unlocking state to the locking state.
As shown in fig. 15, 16, 21 and 22, the wheel seat locking mechanism 5 includes a slide member provided on the carriage body 1 so as to relatively slide in the up-down direction, a first elastic member 513 for providing a force required for the slide member to slide upward, and a driving slider 531 provided on the carriage body 1 so as to slide. The sliding assembly comprises a lock pin 511 extending along the up-down direction and a mounting slide block 521 arranged on the carriage body 1 in a sliding manner along the up-down direction, the axial lead of the lock pin 511 is parallel to the axial lead of the universal shaft, a locking groove 512 for being matched with the lock pin 511 is arranged on the wheel seat 221, the lock pin 511 is arranged on the mounting slide block 521 in a sliding manner along the up-down direction, and a second elastic piece 523 for driving the lock pin 511 to move downwards is arranged between the mounting slide block 521 and the lock pin 511.
As shown in fig. 15, 16, 21 and 22, the sliding direction of the driving slider 531 is perpendicular to the sliding direction of the mounting slider 521 and to the sliding direction of the carriage 4 with respect to the carriage body 1, specifically, the driving slider 531 slides in the left-right direction. The upper end of the installation slider 521 is provided with a pushing inclined plane 522, the outer end of the driving slider 531 is provided with a driving inclined plane 532, the pushing inclined plane 522 is in mutual fit contact with the driving inclined plane 532, and a third elastic piece 533 for driving the driving slider 531 to deviate from the action force required by the movement of the installation slider 521 is also arranged between the carriage body 1 and the driving slider 531.
When the hauling rod 4 is in the open state, the hauling rod end 411 is positioned in the middle of the accommodating groove 13, the inner end of the driving sliding block 531 is separated from the hauling rod 4, the locking pin 511 is separated from the locking groove 512, the wheel seat locking mechanism 5 is in the unlocking state, when the hauling rod 4 is converted to the retracted state, the hauling rod end 411 moves from front to back to the rear end of the accommodating groove 13, the hauling rod end 411 abuts against the inner end of the driving sliding block 531 and pushes the driving sliding block 531 to move towards the mounting sliding block 521, the locking pin 511 is pressed down, when the wheel seat 221 rotates to enable the locking pin 511 to correspond to the position of the locking groove 512, the locking pin 511 is inserted into the locking groove 512 in a matched mode under the action of the second elastic piece 523, and the wheel seat locking mechanism 5 is locked in a linkage mode, as shown in fig. 22 and fig. 24.
As shown in fig. 18 and 24, a first positioning locking groove 413 and a second positioning locking groove 414 are formed at intervals along the sliding direction of the towing bar 4 at the bottom of the accommodating groove 13, the first positioning locking groove 413 is located in front of the second positioning locking groove 414, and a towing bar positioning pin 415 capable of sliding along the up-down direction and a fifth elastic piece 412 for driving the towing bar positioning pin 415 to move towards the first positioning locking groove 413 or the second positioning locking groove 414 are arranged on the towing bar end 411. When the hauling pole 4 is in the open state, the hauling pole positioning pin shaft 415 is inserted in the first positioning locking groove 413 in a matched mode, and when the hauling pole 4 is in the retracted state, the hauling pole positioning pin shaft 415 is inserted in the second positioning locking groove 414 in a matched mode. The drag lever 4 is further provided with an unlocking device for enabling the drag lever positioning pin shaft 415 to exit the first positioning locking groove 413 or the second positioning locking groove 414, and the unlocking device can be specifically adopted in the prior art.
The specific use steps of the multifunctional carriage in this embodiment are as follows:
When the multifunctional carriage is required to be converted into the pushing working state, as shown in fig. 19, the pushing component locking piece 14 is unlocked first, then the pushing component 3 is pulled out backward as shown in fig. 7, so that the rotating shaft of the push rod frame 31 extends out of the guide groove 11, then the push rod frame 31 is rotated upward, the unfolding seat 32 and the support rod frame are shown in fig. 4, then the first locking mechanism and the second locking mechanism are synchronously locked, finally the push rod frame 31 is unfolded along the length direction of the carriage, and the carriage is converted into the pushing working state as shown in fig. 1.
When the multifunctional carriage is required to be converted into the towing operation state as shown in fig. 19, the carriage positioning pin shaft 415 is firstly unlocked, then the carriage 4 is pulled out forwards to the open state, and the carriage is converted into the towing operation state as shown in fig. 13 and can be grafted on the child trolleys 6 with different heights as shown in fig. 25.
When the multifunctional carriage is not needed, the pushing assembly 3 and the carriage rod 4 can be both stored in the carriage body 1 by reversing the steps, as shown in fig. 19, so that the whole volume of the carriage is greatly reduced, and the carriage is convenient to store and carry.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (9)
1. The multifunctional carriage comprises a carriage body and a wheel assembly arranged at the bottom of the carriage body, and is characterized by further comprising a pushing assembly, wherein the pushing assembly comprises a push rod frame capable of being folded along the length direction of the carriage body and a seat capable of being unfolded or folded relative to the push rod frame, the push rod frame can relatively rotate and relatively slide along the front-back direction of the carriage body and is connected with the carriage body, the carriage has a pulling working state and a pushing working state, when the carriage is in the pulling working state, the push rod frame is folded along the length direction and is mutually folded with the seat, the pushing assembly is folded at the bottom of the carriage body, when the carriage is in the pushing working state, the push rod frame is unfolded along the length direction of the carriage and gradually and upwards extends from back to front, the seat is unfolded relative to the push rod frame and is positioned above the carriage body,
The pushing assembly comprises a seat, a pushing rod frame and a pushing rod frame, wherein one end of the seat is rotatably connected to the pushing rod frame, the pushing rod frame is used for supporting between the seat and the pushing rod frame in the pushing working state, the pushing rod frame is connected to the pushing rod frame when the pushing rod is in the pushing working state, and the pushing rod frame is separated from the pushing rod frame and the seat when the pushing rod is in the pushing working state.
2. The multifunctional carriage of claim 1, wherein the stay bar frame comprises an upper stay bar and a lower stay bar which extend in the vertical direction in the pushing working state, the lower end part of the upper stay bar is detachably connected with the upper end part of the lower stay bar, and when the carriage is in the pushing working state, the upper stay bar and the lower stay bar extend in the same vertical direction and are supported between the carriage body and the seat.
3. The multifunctional carriage of claim 2, wherein the stay bar frame further comprises a diagonal stay bar, one end portion of the diagonal stay bar is rotatably connected with the seat or the push rod frame, the other end portion of the diagonal stay bar is rotatably connected to the lower stay bar, when the carriage is in the towing operation state, the upper stay bar and the lower stay bar are mutually detached, the upper stay bar is folded at the bottom of the seat, and the lower stay bar and the diagonal stay bar are mutually folded at the bottom of the seat.
4. The multifunctional carriage of claim 2, wherein a first locking mechanism for locking the upper stay bar and the lower stay bar relative to each other is arranged between the upper stay bar and the lower stay bar, a second locking mechanism for locking the lower stay bar and the carriage body relative to each other is arranged between the lower stay bar and the carriage body, and the first locking mechanism and the second locking mechanism are synchronously locked and/or linked and unlocked.
5. The multifunctional carriage of claim 4, wherein the carriage body is provided with a mounting hole for the lower end part of the lower stay rod to be inserted in a matched manner, the carriage body is further provided with a lock hole communicated with the mounting hole, the second locking mechanism comprises a linkage sliding block which can be arranged on the lower stay rod in a sliding manner along the length direction of the lower stay rod, a lock tongue which is arranged on the lower end part of the lower stay rod in a sliding manner along the length direction perpendicular to the lower stay rod, and an elastic piece for providing an acting force required by the movement of the lock tongue towards a position far away from the lock hole, a wedge-shaped surface matched with each other is arranged between the lower part of the linkage sliding block and the lock tongue, the upper end part of the lower stay rod is provided with an insertion hole for the lower end part of the upper stay rod to be inserted in a matched manner, and when the lower end part of the upper stay rod is inserted in the insertion hole and the first locking mechanism is locked, the linkage sliding block slides downwards and drives the lock tongue to be inserted in the lock hole in a matched manner.
6. The multifunctional carriage of claim 1, wherein a guide groove extending in the front-rear direction and used for providing sliding guide for the push rod frame is formed in the bottom of the carriage body, one end portion of the push rod frame is rotatably connected with a push rod connector through a rotating shaft, the push rod connector can be slidably connected with the carriage body along the extending direction of the guide groove, the rotating shaft is located in the guide groove when the carriage is in the towing operation state, and the rotating shaft is located outside the guide groove when the carriage is in the pushing operation state.
7. The multi-purpose carriage of claim 6 wherein said pusher carriage comprises two pusher bars disposed parallel to each other and spaced apart from each other, said seat being connected between said two pusher bars, said seat being folded between said two pusher bars when said carriage is in said towing mode.
8. The multifunctional carriage of any one of claims 1 to 7, further comprising a carriage, wherein the carriage comprises a carriage end, a carriage rod body with one end rotatably connected to the carriage end through a rotation shaft, and a carriage connecting piece arranged at the other end of the carriage rod body, the carriage body is provided with a containing groove extending along the front-back direction and used for providing sliding guide for the carriage rod, the carriage rod end is arranged in the containing groove in a sliding fit manner, when the carriage is in the carriage working state, the carriage rod body and the rotation shaft are both positioned outside the containing groove, and when the carriage is in the pushing working state, the carriage rod body and the rotation shaft are both positioned in the containing groove.
9. The multifunctional carriage of claim 8, wherein the wheel assembly comprises a front wheel assembly arranged at the front part of the bottom of the carriage body and a rear wheel assembly arranged at the rear part of the bottom of the carriage body, the rear wheel assembly comprises a wheel seat and a rear wheel arranged at the bottom of the wheel seat, the wheel seat is rotationally connected to the carriage body through a universal shaft, a wheel seat locking mechanism for locking the wheel seat and the carriage body relative to each other is arranged between the wheel seat and the carriage body, the wheel seat locking mechanism is in an unlocking state when the carriage is in the carriage working state, and the wheel seat locking mechanism is in a locking state when the carriage is in the pushing working state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008706.4A CN112092893B (en) | 2020-09-23 | 2020-09-23 | Multifunctional carriage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008706.4A CN112092893B (en) | 2020-09-23 | 2020-09-23 | Multifunctional carriage |
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| Publication Number | Publication Date |
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| CN112092893A CN112092893A (en) | 2020-12-18 |
| CN112092893B true CN112092893B (en) | 2024-12-27 |
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| CN213831863U (en) * | 2020-09-23 | 2021-07-30 | 好孩子儿童用品有限公司 | Multifunctional carriage |
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| CN202272044U (en) * | 2011-08-31 | 2012-06-13 | 好孩子儿童用品有限公司 | Dragging plate and pulling rod adjusting mechanism of stroller |
| CN204309875U (en) * | 2014-12-02 | 2015-05-06 | 好孩子儿童用品有限公司 | A kind of children trolley planker |
| CN107298124A (en) * | 2017-07-06 | 2017-10-27 | 昆山森夏儿童用品有限公司 | A kind of Novel baby vehicle frame for being easy to fold |
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| CN213831863U (en) * | 2020-09-23 | 2021-07-30 | 好孩子儿童用品有限公司 | Multifunctional carriage |
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