CN201176164Y - Folding four-wheel baby carriage - Google Patents

Abstract

The utility model discloses a foldable novel four-wheel bassinet, it includes a frame, front wheel group and rear wheel group, and can dismantle accessory parts such as seat, the frame, including: a rear wheel set connecting the axle tube; a rear wheel set connecting pipe with an arched outline; the front end of the middle branch pipe is connected with the middle part of the front wheel set connecting pipe, the rear end of the middle branch pipe is connected with the middle part of the rear wheel set connecting pipe, and the front end and the rear end of the middle branch pipe form a bottom bracket with the outline of two Y-shaped components; two rear wheel branch pipes; the handle lower pipes and the rear wheel branch pipes respectively form a V-shaped side support symmetrically arranged on the rear wheel set connecting pipe; the two V-shaped side brackets are also provided with a transverse fixing pipe at the joint shaft of the handle lower pipe and the rear wheel branch pipe to connect the two side brackets; and the upper end of the vertically arranged central shock absorber is connected to the center of the transverse fixing pipe, and the lower end of the vertically arranged central shock absorber is hinged to the bottom bracket.

Description

A new type of foldable four-wheel baby carriage

technical field

The utility model relates to a hand-push baby carriage, in particular to a new folding four-wheel baby carriage which is equipped with a shock absorbing structure, has a small volume after being folded, has a simple structure, and is quick and easy to fold and unfold.

Background technique

The trolley stroller in the prior art generally includes a cart frame, a front wheel arranged at the bottom front portion of the cart frame, and a rear wheel arranged at the bottom rear portion of the cart frame The cart frame includes side brackets located on both sides, the side brackets include a front wheel bracket, a push handle whose lower end is rotatably connected to the upper end of the front wheel bracket, and an upper end connected to the upper end of the front wheel bracket. The rear wheel group support that is rotatably connected to the push handle described above, usually the cart frame includes a seat link, etc., the front end of the seat link is rotatably connected to the front wheel support, and the seat link The rear end of the rear end is rotatably connected to the rear wheel bracket. When the child stroller is folded, the front wheel bracket is folded relative to the rear wheel bracket, and the seat link limits the front wheel bracket relative to the rear wheel bracket. The folded position prevents the front wheel support from shrinking less than the rear wheel set support after folding, and the frame structure is complex and cumbersome to assemble; most of the existing children's strollers are equipped with shock absorbing devices, which are mostly set on the wheels etc., the shock-absorbing effect in its actual use is not ideal; the existing children's stroller is equipped with multiple folding joints, and its shrinkage, folding and unfolding operations are complicated and time-consuming. The final volume is still larger, the manufacturing and transportation costs are higher, the shock absorption effect is poor, and the use is also inconvenient.

Utility model content

In view of the above-mentioned shortcomings of the existing hand-push baby carriages, the purpose of the utility model is to provide a new type of foldable four-wheel baby carriage which is equipped with a shock absorbing device, has a small volume after folding, has a simple structure, and is quick and easy to fold and unfold.

Realize above-mentioned purpose, the technical scheme provided by the utility model is:

A new type of foldable four-wheel stroller, comprising a vehicle frame, a front wheel set and a rear wheel set connected to the vehicle frame, and detachable accessories such as seats arranged on the vehicle frame, the described The front and rear wheel sets respectively include two front wheels and rear wheels arranged on one side of the vehicle frame, and are characterized in that:

The vehicle frame also includes:

A rear wheel group coupling tube, the two ends of which are respectively connected to the two rear wheels through a connecting piece;

A rear wheel set connecting pipe with an arcuate profile, its arcuate opening faces the rear wheels, its two tail ends are respectively connected to the inner sides of the two rear wheels through a connecting piece, and the middle part protrudes toward the front and upper side of the rear wheels ;

A bow-shaped front wheel set connecting pipe, its bow-shaped opening faces the front wheels, its two tail ends are respectively connected to the inner sides of the two front wheels through a connecting piece, and the middle part protrudes toward the rear and upper side of the front wheels ;

An intermediate branch pipe, whose front end is connected to the middle part of the front wheel group connecting pipe, and whose rear end is connected to the middle part of the rear wheel group connecting pipe, and the three together form a contour composed of the bottoms of two fork-shaped members connected bottom bracket;

Two rear wheel branch pipes, the lower ends of which are respectively hinged to the lower section of the rear wheel group coupling pipe through a connecting piece, and the upper ends protrude toward the front and upper sides of the rear wheel group respectively;

Second-hand handle down tubes, the lower ends of which are respectively hinged to the upper ends of the rear wheel branch pipes through a connecting piece, and the upper ends protrude toward the back and upper side of the rear wheel group connecting shaft pipe, forming a symmetrical relationship with the rear wheel branch pipes respectively. a V-shaped side bracket arranged on the connecting pipe of the rear wheel set;

The two V-shaped side brackets are also provided with a horizontal fixing tube at the hinge shaft of the handle down tube and the rear wheel branch pipe to connect the two side brackets;

A vertically arranged central shock absorber, the upper end of which is connected to the center of the transverse fixed pipe, and the lower end of which is hinged on the bottom bracket.

The aforementioned foldable new four-wheel baby carriage is characterized in that the vehicle frame also includes:

A front wheel group coupling tube, the two ends of which are respectively connected to the two front wheels through a connecting piece;

Second-hand handlebars, the outline of which is inverted L-shaped, and the lower ends of which are respectively inserted into the handle down tubes through a connecting piece;

A U-shaped horizontal handle pipe for connecting the second-hand handle down pipe, the two ends of which are respectively connected to the inner side of the second-hand handle down pipe.

The aforesaid new folding four-wheel stroller is characterized in that the central shock absorber is composed of a T-shaped upper branch pipe and a T-shaped lower support rod, wherein the upper section of the lower support rod is inserted into the upper In the branch pipe, a spring is sleeved outside the two, and the two ends of the spring are connected to the inner side of the upper branch pipe and the lower support rod; the upper end of the upper branch pipe is connected to the center of the horizontal fixed pipe, and the lower end of the lower support rod Hinged on the bottom bracket.

The above-mentioned new type of folding four-wheel baby carriage is characterized in that a connecting piece is provided between the handle down tube and the rear wheel branch tube. There is also a shaft hole in the middle of which is used to set the horizontal fixed pipe. The upper pipe sleeve is connected with the lower pipe of the handle through another connecting pipe, and the rear wheel branch pipe is connected to the lower pipe sleeve. superior.

The aforesaid new folding four-wheel baby carriage is characterized in that the rear wheel set connecting pipe includes two underframe pipes and a center shock absorber that connects the underframe pipe, the middle branch pipe and the vertically arranged center shock absorber together. The Y-shaped connecting pipe; the front end of the Y-shaped connecting pipe is connected with the middle branch pipe through a connecting bracket; the rear end of the Y-shaped connecting pipe is respectively inserted into the front end of the chassis pipe, and connected together; the upper end surface of the Y-shaped connecting pipe is provided with a pair of protruding lugs, and the lugs are respectively provided with a shaft hole, and the vertically arranged central shock absorber is hinged on the Y-shaped connecting pipe through a shaft. pipe on.

The aforementioned new type of foldable four-wheel stroller is characterized in that the Y-shaped connecting pipe is also provided with a retractable control mechanism, which includes a sliding key that penetrates and exposes both sides of the connecting pipe, and the front of the sliding key There is a locking spring at the bottom; when the sliding key is moved backward, the middle branch can be rotated downward to receive the vehicle.

The aforementioned new type of foldable four-wheel stroller is characterized in that, on the bracket on the right side, there is also a car-retracting locking mechanism, which respectively includes: a car-retracting handle and a lock that are arranged on the lower tube of the handlebar. buckle.

The aforementioned foldable new four-wheel stroller is characterized in that the front wheels are detachably connected to the front wheel set connecting tube; the connection between the front wheel set connecting tube and the front wheel On the parts, a front wheel guard is also provided respectively.

The aforesaid new type foldable four-wheel stroller is characterized in that the rear wheels are detachably connected to the coupling tubes of the rear wheels; the coupling tubes of the two rear wheels are respectively provided with a Rear wheel guard.

The aforesaid new folding four-wheel baby carriage is characterized in that the inner sides of the two ends of the horizontal fixing tube are respectively provided with a deck for connecting detachable parts; the deck can be used to set seats, baskets, car Detachable parts such as safety seats; the lower ends of the seats and other parts can be inserted into or pulled out of the card holder.

The connecting piece between the aforementioned rear wheel and the rear wheel group coupling tube and the chassis tube includes an outer rear wheel seat and an inner rear wheel seat; a spring and a wheel iron are arranged on the inner rear wheel seat Pull down the wheel removal iron piece, insert the wheel axle, after letting go, the spring will bounce back the wheel removal iron piece to lock the wheel axle.

On the aforementioned vehicle frame, some accessories such as car cloths can also be set, and can be used in conjunction with accessories such as various common seats, car seats, and baskets.

The advantage of the utility model is that: when the utility model is folded, it is only necessary to press the secondary lock arranged on the lower tube of the handle, pull the lower tube of the handle upward, and then press the lower tube of the handle downward, and the vehicle The frame as a whole can be folded; and when it is unfolded again, it is only necessary to pull up the lower tube of the handlebar to realize the unfolding of the frame as a whole.

Because the frame structure of the utility model is simple, the folding mechanism is easy to operate, and the center shock absorber which is vertically arranged on it is provided with a damping spring, which can reduce the vibration; The frame is separated as a whole, so it is small in size, quick and easy to disassemble and assemble, which greatly facilitates transportation and installation.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Description of drawings

Fig. 1 is the front structural schematic diagram of vehicle frame of the embodiment of the utility model;

Fig. 2 is a rear view of Fig. 1 .

Fig. 3 is a left side view of Fig. 1 .

FIG. 4 is a top view of FIG. 1 .

Fig. 5 is a bottom view of Fig. 1 .

Fig. 6 is the enlarged schematic diagram of the structure of the center shock absorber in Fig. 1;

Fig. 7 is a schematic diagram of the enlarged structure of the connecting piece between the handle down tube and the rear wheel group branch pipe in Fig. 1;

Fig. 8 is a schematic diagram of the assembly structure of the front wheel in Fig. 1;

Fig. 9 is a schematic diagram of the assembly structure of the rear wheel in Fig. 1;

Fig. 10 is a schematic diagram of the three-dimensional structure of the handle pipe and the two locks in Fig. 1;

FIG. 11 is a partial perspective enlarged structural schematic diagram of FIG. 10 .

Detailed ways

Embodiment: Referring to Fig. 1 to Fig. 11, a new type of foldable four-wheel stroller provided by the embodiment of the utility model includes a vehicle frame 40, a front wheel set and a rear wheel connected to the vehicle frame 40 group, and the detachable accessory parts such as seats arranged on the vehicle frame 40, the rear wheel group includes two rear wheels 2 respectively arranged on one side, and the front wheel group includes two front wheels 1 respectively arranged on one side ; a rear wheel group connecting shaft tube 4, the two ends of which are respectively connected to the two rear wheels 2 through a connecting piece 5;

A rear wheel set connecting pipe 6 with an arcuate profile, its arcuate opening faces the rear wheel 2, its two tail ends are respectively connected to the inner sides of the two rear wheels 2 through a connecting piece 5, and the middle part faces the rear wheel 2 and the front upper part of the rear wheel set coupling pipe 4;

A bow-shaped front wheel set connecting pipe 3 is similar in structure to the rear wheel set connecting pipe 6. Its bow-shaped opening faces the front wheel 1, and its two tail ends are respectively connected to the two ends by a connecting piece 7. The inner side of the front wheel 1, the middle of which protrudes toward the rear and upper side of the front wheel 1;

An intermediate branch pipe 8, whose front end is connected to the middle part of the front wheel group connecting pipe 3, and its rear end is connected to the middle part of the rear wheel group connecting pipe 6, and the three jointly form a contour formed by two Y-shaped members bottoms. attached bottom bracket;

Two rear wheel branch pipes 9, the lower ends of which are respectively hinged to the lower section of the rear wheel group coupling pipe 4 through a connecting piece, and the upper ends protrude toward the front and upper side of the rear wheel group 2 respectively;

Second-hand down tube 10, its lower end is respectively hinged on the upper end of described rear wheel branch pipe 9 through a connecting piece, and its upper end stretches out to the back and upper side of described rear wheel group connecting shaft pipe 4, and respectively connects with described rear wheel branch pipe 9 Form a V-shaped side bracket symmetrically arranged on the connecting pipe 6 of the rear wheel group; the two V-shaped side brackets are also provided with a The lateral fixing pipe 12 connects the two side supports;

A front wheel group coupling tube 29, the two ends of which are respectively connected to the two front wheels 1 through a connecting piece 7; the second-hand handlebar 14 has an inverted L-shaped profile, and its lower end is respectively inserted into the said two front wheels 1 through a connecting piece. One is used to connect the U-shaped horizontal handle pipe 15 of the second-hand handlebar 10, and its two ends are respectively connected to the inner side of the second-hand handlebar lower pipe 10.

The vehicle frame 40 also includes a U-shaped horizontal handle pipe 15 connected to the handle down pipe 10 , and its two ends are respectively connected to the inner upper end of the second-hand handle down pipe 10 . The inner sides of the two ends of the transverse fixing tube 12 are respectively provided with a clamping seat 46 .

Referring to Fig. 6, a vertically arranged central shock absorber 13 is composed of a T-shaped upper branch pipe 131 and a T-shaped lower branch rod 132, wherein the upper section of the lower branch rod 132 is inserted into the upper branch pipe 131 A spring 133 is sleeved outside the two, and the two ends of the spring 133 are connected to the inner side of the upper branch pipe 131 and the lower branch rod 132; the upper end of the upper branch pipe 131 is connected to the center of the horizontal fixed pipe 12. The lower end of the pole 132 is hinged on the bottom bracket.

Referring to Fig. 7, the connecting piece between the handle down tube 10 and the rear wheel branch tube 9 is a connecting elbow 11 with a V-shaped outline formed by an upper and lower tube, and a connecting part is also provided for The axial hole 31 of the horizontal fixed pipe 12 is arranged, and its upper pipe body is connected with the described handle 14 through another connecting pipe, and the described rear wheel branch pipe 9 is directly inserted into its lower pipe body.

Referring to Fig. 4 and Fig. 5, the described rear wheel set connecting pipe 6 includes two underframe pipes 44 and one connecting the underframe pipe 44 with the middle branch pipe 8 and the vertically arranged central shock absorber 13. Y-shaped connecting pipe 45; the front end of the Y-shaped connecting pipe 45 is connected to the middle branch pipe 8 through a connecting seat; the rear end of the Y-shaped connecting pipe 45 is respectively inserted into the chassis pipe 44 and connected together; the front wheel set connecting pipe 3 also adopts a structure similar to it.

Referring to Fig. 3, a pair of protruding lugs 24 are arranged on the upper end surface of the Y-shaped connecting pipe 45, and a shaft hole is respectively arranged on the lugs, and the vertically arranged central shock absorber 13 passes through a shaft. Hinged on the Y-shaped connecting pipe 45; on the connecting pipe 45, a retraction control mechanism is also provided, and the mechanism includes a sliding key 26 that penetrates and exposes the two sides of the connecting pipe 45, and the front part of the sliding key 26 is provided with There is a locking spring; when the slide key 26 is moved backward, the middle branch pipe 8 can be rotated downward to receive the car.

Referring to Fig. 9 and Fig. 3, the rear wheel 2 is detachably connected to the coupling shaft tube 4 of the rear wheel group; on the shaft coupling tube 4 of the two rear wheel groups, a rear wheel protection Plate 43; the axles of the two rear wheels 2 all stretch out from the inner surface of the rear wheel 2, and the front end is provided with an annular groove; the connecting piece 5 includes an outer rear wheel seat and an inner rear wheel seat; The outer rear wheel base is provided with a spring and a card 41 used in conjunction with the annular groove. One end of the card 41 is hinged on the connecting piece 5, and the other end extends out of the connecting piece 5 and can rotate. , to block or loosen the wheel shaft; when in use, pull the card 41 down, insert the wheel shaft, and after letting go, the spring will bounce the card 41 back to block the wheel shaft.

Referring to Fig. 10 and Fig. 11, on the right side bracket, there is also a car-retracting locking mechanism, which respectively includes: a car-receiving locking mechanism arranged on the connecting piece between the handle 14 and the handle down tube 10 Deck 18, a car handle 19 and a lock button 20; the connection between the handle 14 and the handle down tube 10 includes an inner sliding sleeve, a telescopic handle joint 16, and a telescopic handle button 17 The inner sliding sleeve is provided with a long slot, and between the long slot and the telescopic handle button 17, there is also a rivet that can enter the long slot when the telescopic handle button 17 is pressed inward; The handle 14 can be moved in and out of the handle down tube 10 and positioned at an appropriate position; when in use, the lock button 20 is pressed, and then the left and right handles 19 are pulled up along the handle down tube 10, You can collect the car.

Referring to Fig. 8, the front wheel 1 is detachably connected to the front wheel set coupling tube 3; the connecting piece 7 between the front wheel set connecting tube 3 and the front wheel 1 is A front wheel guard 22 is provided respectively.

The inner sides of the two ends of the horizontal fixed pipe 12 are respectively provided with a deck 46 for connecting detachable parts; The lower ends of parts such as the seat can be inserted into or extracted from the card holder 46.

On the aforementioned vehicle frame 40, some accessories such as handrails and car cloths can also be set, and can be used in conjunction with accessories such as various common seats, car seats, and baskets.

Adopt the same or similar structures described in the above-mentioned embodiments of the utility model to obtain other foldable new four-wheel baby carriages, all within the scope of protection of the utility model.

Claims (10)

1. A new type of foldable four-wheel baby carriage, comprising a vehicle frame, a front wheel set and a rear wheel set connected to the vehicle frame, and detachable accessories such as seats arranged on the vehicle frame, the The front and rear wheel sets respectively include two front wheels and rear wheels arranged on one side of the vehicle frame, and are characterized in that: The vehicle frame also includes: A rear wheel group coupling tube, the two ends of which are respectively connected to the two rear wheels through a connecting piece; A rear wheel set connecting pipe with an arcuate profile, its arcuate opening faces the rear wheels, its two tail ends are respectively connected to the inner sides of the two rear wheels through a connecting piece, and the middle part protrudes toward the front and upper side of the rear wheels ; A bow-shaped front wheel set connecting pipe, its bow-shaped opening faces the front wheels, its two tail ends are respectively connected to the inner sides of the two front wheels through a connecting piece, and the middle part protrudes toward the rear and upper side of the front wheels ; An intermediate branch pipe, whose front end is connected to the middle part of the front wheel group connecting pipe, and its rear end is connected to the middle part of the rear wheel group connecting pipe, and the three together form a contour connected by the bottom ends of two fork-shaped members constitute the bottom bracket; Two rear wheel branch pipes, the lower ends of which are respectively hinged to the lower section of the rear wheel group coupling pipe through a connecting piece, and the upper ends protrude toward the front and upper sides of the rear wheel group respectively; Second-hand handle down tubes, the lower ends of which are respectively hinged to the upper ends of the rear wheel branch pipes through a connecting piece, and the upper ends protrude toward the back and upper side of the rear wheel group connecting shaft pipe, forming a symmetrical relationship with the rear wheel branch pipes respectively. a V-shaped side bracket arranged on the connecting pipe of the rear wheel set; The two V-shaped side brackets are also provided with a horizontal fixing tube at the hinge shaft of the handle down tube and the rear wheel branch pipe to connect the two side brackets; A vertically arranged central shock absorber, the upper end of which is connected to the center of the transverse fixed pipe, and the lower end of which is hinged on the bottom bracket. 2. The new foldable four-wheel stroller according to claim 1, wherein the vehicle frame also includes: A front wheel group coupling tube, the two ends of which are respectively connected to the two front wheels through a connecting piece; Second-hand handlebars, the outline of which is inverted L-shaped, and the lower ends of which are respectively inserted into the handle down tubes through a connecting piece; A U-shaped horizontal handle pipe for connecting the second-hand handle down pipe, the two ends of which are respectively connected to the inner side of the second-hand handle down pipe. 3. The foldable new four-wheel stroller according to claim 1 or 2, wherein the central shock absorber is composed of a T-shaped upper branch and a T-shaped lower branch, wherein the lower branch The upper part of the rod is inserted into the upper branch pipe, and a spring is sheathed outside the two, and the two ends of the spring are connected to the inside of the upper branch pipe and the lower branch rod; the upper end of the upper branch pipe is connected to the horizontal fixed pipe. Center, the lower end of its lower pole is hinged on the bottom bracket. 4. The foldable new four-wheel stroller according to claim 1 or 2, characterized in that, between the handle down tube and the rear wheel branch tube, there is also a connecting piece, the connecting piece is composed of upper and lower sections It is a V-shaped one-piece pipe sleeve with a V-shaped outline, and a shaft hole for setting a horizontal fixed pipe is provided in the middle, and the upper section of the pipe sleeve is connected with the lower pipe of the handle through another connecting pipe. The rear wheel branch pipe is connected on its lower segment pipe sleeve. 5. according to claim 1 or 2 described foldable new-style four-wheel child carriages, it is characterized in that, described rear wheel set connection pipe, comprises two underframe pipes and a described underframe pipe and middle branch pipe and vertical The Y-shaped connecting pipes connected together by the set central shock absorbers; the front ends of the Y-shaped connecting pipes are connected together with the intermediate branch pipes through a connecting bracket; the rear ends of the Y-shaped connecting pipes are respectively inserted into the The front end of the bottom frame pipe is connected together; a pair of protruding lugs are provided on the upper end surface of the Y-shaped connecting pipe, and a shaft hole is respectively provided on the lugs. The vertically arranged central shock absorber It is hinged on the Y-shaped connecting pipe through a shaft. 6. The foldable new four-wheel stroller according to claim 5, characterized in that, the Y-shaped connecting pipe is also provided with a retraction control mechanism, which includes a sliding mechanism that penetrates and exposes the two sides of the connecting pipe. key, the front of the sliding key is provided with a locking spring. 7. The foldable new four-wheel stroller according to claim 1 or 2, characterized in that, on the bracket on the right side, there is also a car receiving locking mechanism, which respectively includes: A car handle and a lock on the top. 8. The foldable new four-wheel stroller according to claim 1 or 2, characterized in that, the front wheels are detachably connected to the coupling tubes of the front wheels; the coupling tubes of the front wheels are connected to A front wheel guard is also respectively provided on the connecting piece between the front wheels. 9. The new foldable four-wheel stroller according to claim 1 or 2, characterized in that, said rear wheels are detachably connected to said rear wheel set coupling tube; said two rear wheel sets The coupling tube is also provided with a rear wheel guard plate respectively. 10. The new foldable four-wheel stroller according to claim 1 or 2, characterized in that, the inner sides of the two ends of the transverse fixing tube are respectively provided with a card seat for connecting detachable parts.

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