CN217705872U

CN217705872U - Foldable telescopic trolley

Info

Publication number: CN217705872U
Application number: CN202221846642.XU
Authority: CN
Inventors: 张太森
Original assignee: Guangzhou Youlv Luggage & Case Material Co ltd
Current assignee: Guangzhou Youlv Luggage & Case Material Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-11-01
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a foldable and telescopic trolley, the storage position of a pull rod is changed from the top end of a traditional bearing plate to bottom storage, and meanwhile, the bearing plate can be expanded and contracted, and the bearing area is variable; the technical scheme of the utility model is that: the bearing plate comprises a first bearing plate and a second bearing plate, the first bearing plate is provided with a first extension plate, the second bearing plate is provided with a second extension plate, when the bearing plate is contracted, the first extension plate and the second extension plate are overlapped, the first bearing plate and the second bearing plate are spliced, when the bearing plate is unfolded, the first extension plate and the second extension plate are connected end to end, and no gap is left at the unfolded part; one side of the bearing plate is provided with an installation groove, and the bottom end of the pull rod is hinged and installed in the installation groove through a rotating shaft; a pull rod groove matched with the contracted pull rod is formed in the bottom of the bearing plate, and one end, close to the bottom of the pull rod, of the pull rod groove is communicated with the mounting groove; the utility model discloses simple structure has multiple transform and using-way, can bring bigger facility for the user.

Description

Foldable telescopic trolley

Technical Field

The utility model relates to a handcart field specifically is a collapsible flexible handcart.

Background

The trolley is still widely applied in modern society as a small-sized transportation tool suitable for carrying objects in short distance. The conventional handcart generally comprises a bearing plate, a steering wheel is connected below the bearing plate, and a pull rod for manual push-pull is arranged on one side of the bearing plate. With the development of modern technology, people also expect to develop more functions on the conventional trolley to unlock the use method of the trolley in different scenes. Such as in connection with luggage, to develop its application in the field of luggage or pet bags, such as in connection with small electrical appliances, unlocking its application in vehicle travel. In the prior art, a trolley is provided, and a pull rod of the trolley adopts the pull rod technology of a conventional pull rod box, so that the pull rod of the trolley also has a telescopic function. According to the trolley, the pull rod groove is formed in the front face of the bearing plate, and when the pull rod retracts, the pull rod groove can be embedded for storage, so that the space is saved. However, the trolley still has some problems, for example, when the pull rod is in use, the pull rod groove is left on the front surface of the bearing plate, so that the whole bearing plate is not smooth enough, the appearance is influenced, and when the trolley runs on a bumpy road surface, extra impact is easily brought to a loaded article or a pet; secondly, the pull rod is inconvenient to use after being stored. The bearing plate in accomodating bears the weight of thing again, will oppress the pull rod certainly, brings the risk of damaging for the pull rod. Some handcart bearing plates do not have a telescopic function, or after the handcart bearing plates are stretched, the stretching parts are spaced, so that cargoes are easily scattered, and great inconvenience is brought to users.

Disclosure of Invention

To exist not enough among the prior art, the utility model provides a when the pull rod is accomodate, do not influence the use of bearing plate, do not produce the bearing plate and interfere to and the bearing plate is scalable, and the using-way is nimble changeable, the extensive folding flexible handcart of usage.

A foldable and telescopic trolley comprises a bearing plate, a telescopic pull rod, a roller and a rotating shaft, wherein the roller is fixedly arranged at the bottom of the bearing plate;

the bearing plate comprises a first bearing plate and a second bearing plate, the first bearing plate is provided with a first extension plate, the second bearing plate is provided with a second extension plate, when the bearing plate contracts, the first extension plate and the second extension plate are overlapped, the first bearing plate and the second bearing plate are spliced, and the plate surface of the spliced part is flat; when the foldable frame is unfolded, the first extension plate and the second extension plate are connected end to end, and no gap is left at the unfolded part; the bottom of the bearing plate is also provided with a limiting part for limiting the first extension plate and the second extension plate to be completely separated;

a U-shaped mounting groove is formed in one side of the bearing plate, and fixing bulges are arranged on two opposite sides or one side of the inner wall of the mounting groove; the bottom end of the pull rod is hinged and installed in the installation groove through a rotating shaft; the bearing plate bottom is equipped with the pull rod groove with the pull rod assorted after the shrink, the pull rod groove be close to pull rod bottom one end with the mounting groove communicates with each other, the pull rod cartridge has the mount that can follow the pull rod and move about from top to bottom, the mount is equipped with the fixed slot with the corresponding position of fixed arch.

Preferably, the limiting part comprises a sliding part and a limiting piece, one end of the sliding part is fixed at the bottom end of the first bearing plate or the second bearing plate, the other end of the sliding part is in sliding connection with the other opposite bearing plate, and the limiting piece is arranged at the bottom of the other bearing plate and used for being clamped and limited after the sliding part slides for a certain distance.

Preferably, the fixing frame comprises a pair of fixing pieces, and a connecting part is connected between the fixing pieces.

Preferably, the roller comprises a brake wheel, and the brake wheel comprises a wheel seat, a wheel body, a mounting seat, a pulling part and a brake pad.

Preferably, one side of the brake pad, which is close to the wheel body, is provided with an elastic hook part.

Preferably, the load bearing plate top portion is planar in the collapsed condition.

Preferably, the top of the bearing plate is provided with a protective bulge.

Preferably, the side surface of the bearing plate is provided with a fixing hole for fixing a rope.

Preferably, the pull rod is sleeved with a cross rod.

Compared with the prior art, the utility model provides a foldable handcart possesses following beneficial effect:

the foldable trolley realizes the vertical angle fixation of the pull rod by pushing the fixing frame to be in limit clamping connection with the fixing bulge, so that a user can push and pull the trolley conveniently; after the limiting clamping connection is released, the pull rod can rotate around the rotating shaft by any rotation angle, and can be adapted to different heights and crowds with different using modes, so that the flexibility is stronger. The pull rod storage position is changed from the front side of the traditional bearing plate to the back side of the bearing plate, the size of the car body after storage is further reduced, and the function that the car can be normally used after the pull rod is stored is unlocked. Meanwhile, the bearing plate is not provided with a pull rod accommodating space any more, so that the bearing plate can be designed to be more smooth and attractive, more impact on a bearing object due to uneven plate surface can be avoided, and more purposes can be further developed. The bearing plate has flexible function, can the bigger year thing of bearing volume, and is nimble changeable, and the goods that are difficult for scattering are carried to tensile back face zero clearance, can not bring extra impact of colliding with for carrying yet, bring bigger facility for the user.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a plan view of the embodiment of the present invention showing the extension state of the bearing plate (the pull rod in the storage state);

FIG. 3 isbase:Sub>A sectional view of embodiment A-A of the present invention;

FIG. 4 is an enlarged view of the section C of the embodiment of the present invention;

FIG. 5 is an enlarged view of the section D of the embodiment of the present invention;

fig. 6 is a top view of the load bearing plate according to the embodiment of the present invention in a contracted state (the tension rod is in a storage state);

FIG. 7 is a sectional view of embodiment B-B of the present invention;

fig. 8 is a perspective view of the embodiment of the present invention with the pull rod in a storage state;

fig. 9 is a sectional view of a brake pad according to an embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying fig. 1-9, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

A foldable and telescopic trolley comprises a bearing plate 1, a telescopic pull rod 2, rollers and a rotating shaft 4, wherein the rollers 3 are fixedly arranged at the bottom of the bearing plate 1. The bearing plate includes first bearing plate 10 and second bearing plate 11, first bearing plate 10 is equipped with first extension plate 101, second bearing plate 11 is equipped with second extension plate 111, and when 1 shrink of bearing plate, first extension plate 101 and second extension plate 102 overlap together, and

first bearing plate

10 and 11 amalgamation of second bearing plate, the position face of amalgamation is level and smooth, as a monoblock bearing plate, has avoided amalgamation position height uneven, brings more impacts of colliding with for the bearing thing, also can further develop more usage. When the extension is carried out, the first extension plate 101 is connected with the second extension plate 111 end to end, no gap is left at the extension part, the goods are not easy to scatter, the extra collision on the carried goods is avoided, and the convenience is brought to the user. The bottom of the bearing plate 1 is also provided with a limiting part 5 for limiting the first extension plate and the second extension plate to be completely separated, so that the first bearing plate 10 and the second bearing plate 11 are prevented from being separated, the bearing plate 1 collapses, and the using effect is influenced. The limiting part 5 comprises a sliding part and a limiting piece, one end of the sliding part is fixed at the bottom end of the first bearing plate 10 or the bottom end of the second bearing plate 11, the other end of the sliding part is in sliding connection with the other opposite bearing plate, and the limiting piece is arranged at the bottom of the other bearing plate and used for limiting the sliding part after sliding for a certain distance and clamping the sliding part. In this embodiment, in order to make the first bearing plate 10 and the second bearing plate 11 fit together and have a good appearance, the thicknesses of the first extension plate 101 and the second extension plate 111 are smaller than those of other parts of the bearing part, so that the sliding member 52 not only has a function of limiting sliding but also should support the unfolded part to prevent the unfolded part from breaking and collapsing due to insufficient strength.

Preferably, the present invention adopts a hollow square tube 52 as one of the sliding members, and the fixed end of the square tube 52 is fixed at the bottom of the second bearing plate 111. The limiting part comprises a limiting groove 51 which is formed in the bottom of the first extension plate 101 and is just used for a movable end of the square tube to pass through and a limiting plug 53 which is plugged at the movable end of the square tube 52, and one side of the limiting plug 53 protrudes out of the square tube 52, so that the limiting plug 53 can not move forward after sliding to the limiting groove 51, and limiting is achieved. In some embodiments, the sliding member may also be a flat steel or flat iron bar having greater rigidity and toughness. In some embodiments, the limiting means may be well known to those skilled in the art, such as a groove and protrusion snap-fit limiting, etc.

Two U-shaped mounting grooves 13 are formed in one side edge of the bearing plate 1, the U-shaped openings of the mounting grooves 13 face the outer side surface of the bearing plate 1 and correspond to the two square tubes of the pull rod 2, and the bottoms of the square tubes of the pull rod 2 are hinged and mounted in the U-shaped two sides of the mounting grooves 13 through rotating shafts 6; the opposite two sides or any one side of the two sides of the U-shaped inner wall of the mounting groove 13 is provided with a fixing bulge 14. The utility model discloses pull rod 2 adopts the used both sides tubular telescopic pull rod of current draw-bar box, including two vertical scalable pull rod side pipes, be connected with the handle between the side pipe, be equipped with flexible button on hand. The bottom of the bearing plate 1 is provided with a pull rod groove matched with the contracted pull rod, and one end of the pull rod groove close to the bottom of the pull rod is communicated with the mounting groove. After the pull rod 2 is installed, the pull rod 2 can rotate up and down around the rotating shaft 4, and when the pull rod 2 rotates to the bottom of the bearing plate 1 and is parallel to the bearing plate 1, the pull rod can be just embedded into the pull rod groove. The fixing frame 21 is inserted in the square tube of the pull rod 2, the fixing frame 21 is provided with a fixing groove 213 corresponding to the fixing protrusion, when the fixing frame 21 moves down to the bottom of the square tube of the pull rod 2, the fixing protrusion 14 is clamped in the fixing groove 213, the pull rod 2 is kept in a state perpendicular to the bearing plate 1 and cannot rotate any more until the fixing frame 21 is moved away, so that the fixing protrusion 14 is separated from the fixing groove 213. After the pull rod is separated from the seat, the pull rod 2 can rotate freely, can adapt to different heights and people with different using modes, and has stronger flexibility.

In some embodiments, the fixing frame 21 may be a single component, which is sleeved on a pull rod square tube to limit the position. In this embodiment, the fixing frame 21 is formed by two fixing members 212 and a connecting portion 211 for connecting the two fixing members 212 together. Two mounting 212 suits respectively on two pull rod side pipes, during the use, through manual adjustment connecting portion 211, drives two mounting 212 and reciprocates simultaneously on pull rod 2, realizes the perpendicular locking and the unblock of pull rod 2, labour saving and time saving.

Furthermore, the bottom of the square tube of the pull rod 2 is provided with a protective cover for preventing sharp edges at the bottom of the pull rod from scraping articles or users in the rotating process.

Furthermore, this embodiment has respectively installed a gyro wheel at four angles in bearing plate bottom, contains brake wheel 3 in four gyro wheels. In some embodiments the four rollers may all be brake wheels 3. The technical scheme that this embodiment adopted is that bearing plate 1 bottom is close to one side both ends of pull rod 2, sets up brake wheel 3. The brake wheel 3 includes an attachment seat 31, a wheel seat 32, a brake pad 33, a pulling portion 34, and a wheel body 35.

The lower part of the wheel seat 32 is provided with a wheel body 35, the upper end of the wheel body is connected with a mounting seat 31 which can rotate relatively, and the upper end of the mounting seat 31 is fixedly connected with the bottom of the bearing plate 1. The brake block 33 has a brake part arranged along the outer circumference of the wheel body, a gap is left between the brake part and the wheel body 35 in a normal state, and the brake block 33 is connected to the wheel seat by the fixed end thereof; the pulling part 34 is located on the upper side of the brake block 33, and has one end hinged to the wheel seat 32 and the other end serving as a pressing operation end.

Furthermore, one side of the braking portion close to the wheel body 2 is provided with an elastic hook portion 331, and a hook portion hole 332 is formed at a position of the hook portion 331 opposite to the braking portion. The hook 331 is shaped like a hook body and can be deformed to a certain extent. When the pulling part 34 is pressed down, the pulling part and other parts of the braking part can be abutted against the wheel body 35 together, so that a better braking effect is achieved. In some embodiments, the elastic hook 331 may be a separate component or may be integral with the brake plate 33.

Bearing plate 1 can further develop other functions again because the top no longer sets up the pull rod and accomodates the position. In prior art, the position is accomodate owing to set up the pull rod in 1 top of bearing plate for in the pull rod use, the bearing plate is uneven, when carrying article or transporting the pet easily, brings extra impact or discomfort. Therefore, in this embodiment, the top of the bearing plate 1 is not stored, and is replaced by the bottom, and the top of the bearing plate 1 can be designed to be a plane, so that the whole bearing plate is flat and beautiful. On the one hand, reduced the space that accomodates back automobile body and occupy, unlocked pull rod 2 again on the one hand and accomodate the back, the function that the car also can normal use does not worry and can cause too big pressure to pull rod 2 so that damage pull rod 2, is fit for applying to those scenes that do not need pull rod 2.

In some embodiments, the top of the bearing plate 1 may be provided with a protection protrusion (not shown) that is fixedly connected or integrally formed or detachably connected, so as to further prevent the loaded articles or the pet bag from falling off.

In this embodiment, the lateral surface of the bearing plate 1 is provided with a fixing hole 12 for fixing a rope binding and restricting a bearing article, thereby further preventing the bearing article from falling.

In this embodiment, a plurality of cross bars 22 can be sleeved on the pull rod 2, and the cross bars 22 can play a good role in fixing and preventing the pull rod from shaking after being stretched. When collocation rope used, rope one end can be fixed on fixed orifices 12, and the couple is bound to one end, and the couple can be hung on the horizontal pole of co-altitude not, strengthens the constraint effect, and then promotes the competitiveness of this embodiment in other like products.

Claims

1. A foldable and telescopic trolley comprises a bearing plate, a telescopic pull rod, rollers and a rotating shaft, and is characterized in that the rollers are fixedly arranged at the bottom of the bearing plate;

2. A foldable and telescopic trolley according to claim 1, wherein the limiting part comprises a sliding part and a limiting member, one end of the sliding part is fixed at the bottom end of the first bearing plate or the second bearing plate, the other end of the sliding part is connected with the other bearing plate in a sliding manner, and the limiting member is arranged at the bottom of the other bearing plate and used for being clamped and limited with the sliding part after the sliding part slides for a certain distance.

3. A foldable and collapsible cart as recited in claim 1, wherein said frame comprises a pair of fixed members having a connecting portion connected therebetween.

4. A collapsible cart as recited in claim 1, wherein said rollers comprise brake wheels, said brake wheels comprising wheel mounts, wheel bodies, mounting brackets, wrenching portions and brake pads.

5. A foldable and collapsible pushcart according to claim 4, wherein the brake pads are provided with resilient hooks on the sides thereof adjacent the wheels.

6. A foldable and collapsible cart as claimed in any one of claims 1 to 5 wherein said load bearing top portion is planar in the collapsed condition.

7. A foldable and collapsible pushchair according to any one of claims 1 to 5 wherein said bearing plate is provided with a guard projection at the top.

8. A foldable and collapsible pushchair according to any one of claims 1 to 5 wherein said bearing plate is provided with fixing holes in its side for fixing a cable.

9. A collapsible trolley as claimed in claim 8, wherein the draw bar is sleeved with a cross bar.