CN108146487B

CN108146487B - Portable cart

Info

Publication number: CN108146487B
Application number: CN201711491221.3A
Authority: CN
Inventors: 刘亮
Original assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Current assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Priority date: 2017-12-30
Filing date: 2017-12-30
Publication date: 2024-04-26
Anticipated expiration: 2037-12-30
Also published as: CN108146487A

Abstract

The invention discloses a portable cart, which comprises a frame and a seat pocket detachably fixed on the frame, wherein the seat pocket comprises a backrest rod, a seat rod and a locking structure, the backrest rod comprises an adjusting button and backrest gear teeth, the seat rod comprises a seat rotating joint, the locking structure comprises a rotary table, gear locking teeth, a lock pin and a socket, the rotary table is rotatably arranged on the backrest gear teeth and connected with the adjusting button, the gear locking teeth are arranged between the backrest gear teeth and the rotating joint and are matched with the backrest gear teeth, the lock pin is accommodated between the seat rotating joint and the socket to lock the seat rotating joint and the socket, the socket is arranged on the frame, the rotary table is abutted against the gear locking teeth, the gear locking teeth are separated from the backrest gear teeth to enable the angle between the backrest rod and the seat rod to be adjusted, the lock pin is abutted against the seat rotating joint to unlock the seat rotating joint, and the socket are separated from the seat rotating joint, and the seat pocket can be folded relative to the frame, so that the seat pocket is folded together without disassembly when the frame is folded.

Description

Portable cart

Technical Field

The invention relates to a baby carriage, in particular to a portable handcart.

Background

At present, a baby stroller generally comprises a front foot rod, a rear foot rod, a handrail, an upper handle, a lower handle and a sitting rod, wherein the upper handle is pivoted with the lower handle, the upper ends of the front foot rod and the rear foot rod are hinged with the lower end of the lower handle, and the handrail and the sitting rod are respectively connected with frame structures at two sides to form a four-link folding structure.

However, existing strollers suffer from the following drawbacks:

When the baby stroller is folded, the seat pocket needs to be detached from the frame, and the baby stroller is inconvenient to use.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a portable cart which does not need to detach a seat pocket from a frame when the cart is folded.

The invention adopts the following technical scheme:

The utility model provides a portable shallow, includes frame and seat pocket, seat pocket detachably is fixed in the frame, the seat pocket includes back pole, seat pole and locking structure, the back pole includes adjustment button and back gear tooth, the seat pole includes seat rotary joint, locking structure includes carousel, gear locking tooth, lockpin and socket, the carousel rotate install in back gear tooth and with adjustment button connects, gear locking tooth be located back gear tooth with in the rotary joint and with back gear tooth cooperation, the lockpin is acceptd in the seat rotary joint with make between the socket seat rotary joint with the socket locks, the socket install in the frame, adjustment button drives the carousel rotates, the carousel is contradicted gear locking tooth with back gear tooth separation makes the angle between the back pole with the seat pole can be adjusted, gear locking tooth is located back gear tooth with in the rotary joint with the seat is not needed to separate the lockpin makes the seat rotary joint can be folded together when the seat is folded to the seat.

Further, the gear teeth of the backrest are provided with an installation shaft and a first inclined plane, the rotary table is rotatably installed on the installation shaft, the adjusting button is connected with the rotary table through a traction wire, the adjusting button drives the rotary table to rotate through the traction wire, the rotary table rotates along the first inclined plane to generate radial movement to abut against the gear locking teeth, and the gear locking teeth are separated from the gear teeth of the backrest.

Further, the locking structure further comprises a reset elastic piece, and two ends of the reset elastic piece are respectively abutted against the gear locking teeth and the seat rotary joint.

Further, the back gear teeth are further provided with second inclined planes, the back gear teeth rotate forwards, the second inclined planes move radially to continuously abut against the gear locking teeth, the gear locking teeth comprise abutting protrusions, the abutting protrusions abut against the lock pins, and the lock pins are separated from mounting holes on the seat rotating joints to enable the seat rotating joints to be unlocked from the socket.

Further, the number of the locking pins is 2.

Further, the locking structure further comprises a locking elastic piece, and two ends of the locking elastic piece are respectively abutted against the lock pin and the socket.

Further, the frame comprises a connecting rod, a front foot rod and a rear foot rod, the rear foot rod comprises a connecting joint, the connecting rod comprises a rear rotating connecting end, the front foot rod comprises a front rotating connecting end, and the front rotating connecting end and the rear rotating connecting end are rotatably installed in the connecting joint and are contained in the connecting joint.

Further, the frame also comprises a support rod, the support rod comprises a locking hook, the connecting rod is provided with a buckling part, one end of the support rod is rotationally connected with the rear foot rod, and the other end of the support rod is buckled and locked with the buckling part of the connecting rod through the locking hook.

Compared with the prior art, the rotary table of the portable cart is rotatably arranged on the backrest gear tooth and is connected with the adjusting button, the gear locking tooth is positioned between the backrest gear tooth and the rotary joint and is matched with the backrest gear tooth, the lock pin is accommodated between the seat rotary joint and the socket to lock the seat rotary joint and the socket, the socket is arranged on the frame, the adjusting button drives the rotary table to rotate, the rotary table abuts against the gear locking tooth, the gear locking tooth is separated from the backrest gear tooth to enable the angle between the backrest rod and the seat rod to be adjustable, the gear locking tooth abuts against the lock pin, the lock pin is separated from the seat rotary joint to unlock the seat rotary joint and the socket, and the seat pocket can be folded relative to the frame, so that the seat pocket is folded together without disassembly when the frame is folded.

Drawings

FIG. 1 is a perspective view of a portable cart according to the present invention;

FIG. 2 is another perspective view of the portable cart of FIG. 1;

FIG. 3 is a side view of the portable cart of FIG. 1;

FIG. 4 is a side view of the portable cart of FIG. 1;

FIG. 5 is a perspective view of a seat of the portable cart of FIG. 1;

FIG. 6 is a schematic view of the internal structure of the seat of FIG. 5;

FIG. 7 is an enlarged view of the seat pocket A of FIG. 6;

FIG. 8 is a schematic view of the use of the seat of FIG. 5;

FIG. 9 is a schematic view of another use of the seat of FIG. 5;

FIG. 10 is a schematic view of the seat of FIG. 5 in a further use condition;

FIG. 11 is a schematic view of the seat of FIG. 5 in a folded condition;

FIG. 12 is a schematic view of a folding process of the portable cart of FIG. 1;

FIG. 13 is a schematic view of another folding process of the portable cart of FIG. 12;

FIG. 14 is a schematic view of the portable cart of FIG. 12 in a collapsed condition;

FIG. 15 is a schematic view of the portable cart of FIG. 1 in another use;

Fig. 16 is a schematic view illustrating a folded state of the portable cart of fig. 15.

In the figure: 100. a portable cart; 10. a frame; 11. a handle; 110. a vehicle receiving button; 112. a traction wire; 12. a connecting rod; 120. the connecting end is rotated at the rear; 121. a fastening part; 13. a forefoot lever; 130. a front rotary connection end; 14. a rear foot bar; 140. connecting joints; 15. a support rod; 150. a rod body; 152. a locking hook; 20. a seat pocket; 22. a backrest rod; 220. an adjustment button; 221. back rest gear teeth; 222. a mounting shaft; 223. a first inclined surface; 224. a second inclined surface; 225. gear teeth; 24. a seat post; 240. a seat rotation joint; 26. a locking structure; 260. a turntable; 261. gear locking teeth; 262. a collision protrusion; 263. a return elastic member; 264. a locking pin; 265. a locking elastic member; 266. a socket.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a portable cart 100 includes a frame 10 and a seat pocket 20.

With continued reference to FIG. 4, frame 10 includes a handle 11, a link 12, a front foot bar 13, a rear foot bar 14, and a support bar 15.

The handle 11 includes a collect button 110 and a pull wire 112. The pull wire 112 is accommodated inside the handle 11 and has one end fixedly connected to the collect button 110. The connecting rod 12 includes a rear rotation connecting end 120 and a fastening portion 121. The forefoot lever 13 includes a front swivel connection end 130. The hindfoot bar 14 includes a connection joint 140. The support bar 15 includes a bar body 150 and a locking hook 152 rotatably mounted at one end of the bar body 150. The front rotary connecting end 130 of the front foot bar 13 and the rear rotary connecting end 120 of the connecting rod 12 are rotatably mounted on the connecting joint 140 of the rear foot bar 14, and the front rotary connecting end 130 and the rear rotary connecting end 120 are accommodated in the connecting joint 140, so that the whole portable cart 100 is more attractive. One end of the rod body 150 of the support rod 15 is rotatably connected with the rear foot rod 14, and the other end is locked with the locking part 121 through the locking hook 152. The handle 11 is rotatably connected with the connecting rod 12, and the other end of the pulling wire 112 is fixed to the locking hook 152.

With continued reference to fig. 5-7, the seat pocket 20 includes a backrest bar 22, a seat bar 24, and a locking structure 26. The back lever 22 includes an adjustment button 220 and back gear teeth 221. The back shift tooth 221 includes a mounting shaft 221, a first incline 223, a second incline 224, and a shift tooth 225. Seat post 24 includes a seat pivot joint 240, and seat pivot joint 240 is provided with two mounting holes. The locking structure 26 includes a dial 260, gear locking teeth 261, return spring 263, two locking pins 264, two locking springs 265, and a socket 266. The rotary plate 260 is rotatably mounted on the mounting shaft 221 of the back shift stage tooth 221, the shift stage locking tooth 261 is mounted between the back shift stage tooth 221 and the seat rotary joint 240, and the shift stage locking tooth 261 is engaged with the shift stage tooth 225 of the back shift stage tooth 221 to lock the back rod 22 and the seat rod 24 of the seat pocket 20. The return elastic member 263 is installed between the gear locking tooth 261 and the seat rotating joint 240 and both ends thereof respectively collide with the gear locking tooth 261 and the seat rotating joint 240. Each locking pin 264 is partially received in a mounting hole of the seat rotation joint 240 and partially received in the socket 266 to lock the seat rotation joint 240 with the socket 266. One end of each locking elastic member 265 abuts against the locking pin 264 and the other end abuts against the socket 266. A shaft passes through the back gear tooth 221, the turntable 260, the gear locking tooth 261, the seat rotation joint 240, and the socket 266.

In use of the portable cart 10, the seat pocket 20 is removably mounted to the frame 10 via the receptacle 266 of the seat pocket 20, as shown in fig. 1-2, with the seat pocket 20 being positively assembled with respect to the frame 10. The adjusting button 220 of the seat pocket 20 is pressed, the turntable 260 is rotated relative to the backrest gear teeth 221 by the traction wire, the turntable 260 rotates along the first inclined surface 223 to generate radial movement to collide with the gear locking teeth 261, the gear locking teeth 261 are radially moved to be separated from the backrest gear teeth 221, and the backrest rod 22 is unlocked from the seat rod 24, so that the angle of the backrest rod 22 can be conveniently adjusted, as shown in fig. 8 to 10. Continuing to press the adjusting button 220 of the seat pocket 20, the turntable 260 continues to rotate relative to the backrest gear teeth 221 through the traction wire, the backrest gear teeth 221 rotate forward, the second inclined surface 224 generates radial movement to continue to collide with the gear locking teeth 261, the gear locking teeth 261 continue to move radially, the collision protrusions 262 of the gear locking teeth 261 collide with the locking pins 264, the locking pins 264 are separated from the mounting holes of the seat rotating joint 240, and the seat rod 24 and the frame 10 are unlocked, so that the seat pocket 20 is folded, as shown in fig. 11 to 12.

With continued reference to fig. 13 to 14, when the vehicle receiving button 110 of the vehicle frame 10 is pressed, the pull wire 112 drives the locking hook 152 to rotate and unlock from the fastening portion 121, the vehicle frame 10 can be folded and the seat pocket 20 can be folded along with the vehicle frame 10 without disassembly.

With continued reference to fig. 15-16, the seat pocket 20 can be reversibly and removably mounted to the frame 10, in the same manner as when mounted in the forward direction.

In the portable cart 100 of the present invention, the seat pocket 20 can be removably attached to the frame 10 in a forward or reverse direction, and the seat pocket 20 does not need to be removed when the frame 10 is folded. And the front rotation connecting end 130 and the rear rotation connecting end 120 are accommodated in the connecting joint 140, so that the whole portable cart 100 is more attractive, and is flatter and small in size after being folded. One end of the rod body 150 of the support rod 15 is rotatably connected with the rear foot rod 14, the other end is locked with the locking part 121 through the locking hook 152, and the rotation points of the frame 10 are changed from 4 to 3, so that the shaking of the handle 11 is improved.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a portable shallow, includes frame and seat pocket, its characterized in that: the seat pocket is detachably fixed on the frame, the seat pocket comprises a backrest rod, a seat rod and a locking structure, the backrest rod comprises an adjusting button and backrest gear teeth, the seat rod comprises a seat rotary joint, the locking structure comprises a rotary table, gear locking teeth, a lock pin and a socket, the rotary table is rotatably arranged on the backrest gear teeth and is connected with the adjusting button, the gear locking teeth are positioned between the backrest gear teeth and the rotary joint and are matched with the backrest gear teeth, the lock pin is accommodated between the seat rotary joint and the socket to lock the seat rotary joint and the socket, the socket is arranged on the frame, the adjusting button drives the rotary table to rotate, the rotary table is abutted to the gear locking teeth, the gear locking teeth are separated from the backrest gear teeth to enable the angle between the backrest rod and the seat rod to be adjusted, the gear locking teeth are abutted to the lock pin, and the lock pin is separated from the seat rotary joint to enable the seat rotary joint to be locked with the socket, and the seat pocket is not required to be folded, and the seat pocket is folded relatively, and the seat pocket is not required to be folded;

the backrest gear teeth are provided with mounting shafts and first inclined planes, the rotary table is rotatably mounted on the mounting shafts, the adjusting buttons are connected with the rotary table through traction wires, the adjusting buttons drive the rotary table to rotate through the traction wires, the rotary table rotates along the first inclined planes to generate radial movement to abut against the gear locking teeth, and the gear locking teeth are separated from the backrest gear teeth;

The locking structure further comprises a reset elastic piece, and two ends of the reset elastic piece are respectively abutted against the gear locking teeth and the seat rotary joint;

The gear teeth of the backrest are further provided with second inclined planes, the gear teeth of the backrest rotate forwards, the second inclined planes move radially to continuously abut against the gear locking teeth, the gear locking teeth comprise abutting protrusions, the abutting protrusions abut against the locking pins, and the locking pins are separated from mounting holes on the rotary joints of the seats to enable the rotary joints of the seats to be unlocked from the sockets.

2. The portable cart of claim 1, wherein: the number of the locking pins is 2.

3. The portable cart of claim 1, wherein: the locking structure further comprises a locking elastic piece, and two ends of the locking elastic piece are respectively abutted against the lock pin and the socket.

4. The portable cart of claim 1, wherein: the frame comprises a connecting rod, a front foot rod and a rear foot rod, wherein the rear foot rod comprises a connecting joint, the connecting rod comprises a rear rotating connecting end, the front foot rod comprises a front rotating connecting end, and the front rotating connecting end and the rear rotating connecting end are rotatably arranged in the connecting joint and are contained in the connecting joint.

5. The portable cart of claim 1, wherein: the frame also comprises a support rod, the support rod comprises a locking hook, the connecting rod is provided with a buckling part, one end of the support rod is rotationally connected with the rear foot rod, and the other end of the support rod is buckled and locked with the buckling part of the connecting rod through the locking hook.