CN219115486U

CN219115486U - Foldable trolley

Info

Publication number: CN219115486U
Application number: CN202222809086.5U
Authority: CN
Inventors: 钭俊龙
Original assignee: Zhejiang Qunying Vehicles Co Ltd
Current assignee: Zhejiang Purusheng Industry And Trade Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-06-02
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses a foldable trolley, belongs to the technical field of trolleys, and aims to overcome the defect that an existing trolley cannot carry objects after being folded. The trolley comprises a surrounding rod assembly, a bearing frame and a vertical rod assembly connected between the surrounding rod assembly and the bearing frame; the pole setting assembly comprises a first folding pole group and a second folding pole group, and a telescopic pole group is arranged between the first folding pole group and the second folding pole group so that the first folding pole group and the second folding pole group are in an unfolding or folding state. Through the folding setting of pole setting subassembly for enclose pole subassembly can go up and down to realize the upper and lower folding of shallow, the wheel after folding still can use on the ground, and the shallow after folding still can regard as the shallow to use, improves the convenient to use of shallow when reducing shallow occupation space, increases shallow application scope.

Description

Foldable trolley

Technical Field

The utility model belongs to the technical field of carts, and relates to a foldable cart.

Background

The handcart is used for carrying goods, for being convenient for accomodate, and current handcart design is collapsible, and the handcart volume after folding is less, is convenient for deposit. For example, the Chinese patent literature discloses an utility model patent of a multifunctional outdoor folding cart, and the issued bulletin number is CN202574307U, and the multifunctional outdoor folding cart comprises a symmetrical upper frame, supporting legs and a bottom frame; the butterfly-shaped connecting piece is fixedly riveted with the upper frame and movably riveted with the supporting leg and the U-shaped sliding rod; the bottom frame device sliding block is in sliding connection with the U-shaped sliding rod; the upper frame is connected with the supporting legs through folding strips; the lower end of the supporting leg is provided with a trundle; the two parts of the upper frame are respectively provided with a movable handrail and a heat preservation bag frame; the upper frame is hung with a soft tire; the thermal insulation bag frame is hung on the thermal insulation bag. The folding mode is front-back folding, when folding, the rear front wheels are close, and the cart can not carry objects after folding.

Disclosure of Invention

The utility model provides a foldable trolley aiming at the problems in the prior art, and aims to overcome the defect that the existing trolley cannot carry objects after being folded.

The utility model is realized in the following way:

a foldable cart, comprising a surrounding rod assembly, a bearing frame and a vertical rod assembly connected between the surrounding rod assembly and the bearing frame;

the folding pole is characterized in that the pole setting assembly comprises a first folding pole group and a second folding pole group, and a telescopic pole group is arranged between the first folding pole group and the second folding pole group so that the first folding pole group and the second folding pole group are in an unfolding or folding state.

The telescopic rod group comprises an outer rod with an inner cavity and an inner rod which can extend into the inner cavity, and a locking structure is arranged between the inner rod and the outer rod.

The locking structure comprises a locking sleeve sleeved on the outer rod, a lock catch is arranged on the locking sleeve, a first lock hole is formed in the outer rod, a second lock hole is formed in the inner rod, and when the cart is unfolded, the lock catch is embedded into the first lock hole and the second lock hole.

The locking sleeve is internally provided with a guide wall which is spaced between the outer rod and the inner rod.

The guide wall is provided with a buckle protruding towards the direction of the outer rod, and the outer rod is provided with a clamping hole matched with the buckle.

The first folding rod group and the second folding rod group comprise an upper connecting rod and a lower connecting rod, the telescopic rod group comprises a hinge, the end parts of the outer rod and the inner rod are detachably connected with the hinge, and the hinge, the upper connecting rod and the lower connecting rod are hinged together.

When the cart is unfolded, the hinge piece is provided with a supporting rib which is abutted with the upper connecting rod and the lower connecting rod.

The support rib comprises an upper rib position and a lower rib position, the upper rib position is abutted with the upper connecting rod, the lower rib position is abutted with the lower connecting rod, and the upper rib position and the lower rib dislocation position are arranged.

The vertical rod assembly comprises a first rotating part fixedly connected with the vertical rod assembly and a second rotating part fixedly connected with the vertical rod assembly, and the first rotating part is rotationally connected with the second rotating part.

The first rotating part is provided with a first limiting part, the second rotating part is provided with a second limiting part, and when the cart is unfolded, the first limiting part is abutted with the second limiting part.

The horizontal pole that encloses is upwards protruding from both ends to centre, the second rotates the piece and includes first fixed part and second fixed part, first fixed part with fixed connection can be dismantled to the pole setting subassembly, the second fixed part with fixed connection can be dismantled to horizontal pole that encloses.

The telescopic rod sets are located on two sides of the cart, a bearing plate is arranged in the middle of the bearing frame, a storage box with an upward opening is arranged on the bearing plate, and a cover plate is arranged at the opening of the storage box.

According to the foldable trolley provided by the utility model, the surrounding rod assembly can be lifted up and down to realize up-and-down folding of the trolley through the folding arrangement of the vertical rod assembly, the folded wheels can still be used in a falling mode, the folded trolley can still be used as the trolley, the occupied space of the trolley is reduced, the use convenience of the trolley is improved, and the application range of the trolley is increased.

Drawings

FIG. 1 is a first angular configuration diagram of a cart in an unfolded state;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a second angular schematic view of the cart in an expanded state;

FIG. 4 is a schematic view of a folded stroller;

FIG. 5 is a schematic view of the structure of the cart when the cover plate is opened;

FIG. 6 is an enlarged view of part B of FIG. 5;

FIG. 7 is a schematic view of an exploded view of the rotating assembly;

FIG. 8 is a schematic view of a second rotary member;

FIG. 9 is a schematic view of a first rotary member;

FIG. 10 is a schematic cross-sectional structural view of the outer cover, inner rod and locking sleeve;

FIG. 11 is a schematic cross-sectional view of the locking sleeve;

FIG. 12 is a first angular schematic view of the locking sleeve;

FIG. 13 is a second angular schematic view of the locking sleeve;

FIG. 14 is a first angular configuration of the hinge;

fig. 15 is a second angular structural schematic view of the hinge.

The drawings are marked with the following description: 100. a surrounding rod assembly; 110. a transverse surrounding rod; 120. a longitudinal enclosing rod; 200. a carrier; 210. a carrying plate; 220. a storage tank; 230. a cover plate; 310. a first folding bar set; 320. a second folding bar set; 330. an upper connecting rod; 340. a lower connecting rod; 400. a telescopic rod group; 410. an outer rod; 411. a first lock hole; 420. an inner rod; 421. a second lock hole; 430. a locking sleeve; 431. locking; 432. a guide wall; 433. a buckle; 440. a hinge; 441. a reinforcement is arranged; 442. a lower rib position; 443. a hinge part; 444. a plug-in part; 500. a rotating assembly; 510. a first rotating member; 511. a first limit part; 520. a second rotating member; 521. a second limit part; 522. a first fixing portion; 523. a second fixing portion; 600. a handle.

Detailed Description

The following detailed description of the embodiments of the present utility model is provided with reference to the accompanying drawings, so that the technical scheme of the present utility model can be understood and mastered more easily. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The embodiment provides a foldable cart, as shown in fig. 1-4, comprising a surrounding rod assembly 100, a bearing frame 200 and a vertical rod assembly connected between the surrounding rod assembly 100 and the bearing frame 200; the upright assembly comprises a first folding bar set 310 and a second folding bar set 320, and a telescopic bar set 400 is arranged between the first folding bar set 310 and the second folding bar set 320 so that the first folding bar set 310 and the second folding bar set 320 are in an unfolding or folding state. Through the folding setting of pole setting subassembly for enclose pole subassembly 100 can go up and down to realize the upper and lower folding of shallow, the wheel after folding still can use on the ground, and the shallow after folding still can use as the shallow, improves the convenience of use of shallow when reducing shallow occupation space, increases shallow application scope.

The telescopic rod assembly 400 as shown in fig. 3, 4 and 10 comprises an outer rod 410 having an inner cavity and an inner rod 420 extending into the inner cavity, wherein a locking structure is arranged between the inner rod 420 and the outer rod 410. When the cart is unfolded, the inner rod 420 fully extends out of the outer rod 410, so that the telescopic rod group 400 is integrally prolonged, the inner rod 420 and the outer rod 410 are locked through the locking structure, the telescopic rod group 400 supports the first folding rod group 310 and the second folding rod group 320, the upright rod assembly is prevented from being bent, and the cart can be kept in an unfolded state. When the cart is folded, the locking of the locking structure is released, so that the inner rod 420 fully extends into the outer rod 410, and the telescopic rod group 400 is integrally shortened, so that the first folding rod group 310 and the second folding rod are folded to reach a folded state.

As shown in fig. 10-13, the locking structure includes a locking sleeve 430 sleeved on the outer rod 410, a lock catch 431 is provided on the locking sleeve 430, a first lock hole 411 is provided on the outer rod 410, a second lock hole 421 is provided on the inner rod 420, and when the cart is unfolded, the lock catch 431 is embedded in the first lock hole 411 and the second lock hole 421. When the cart needs to be folded, the lock 431 is pulled or pushed so that the lock 431 is separated from the second lock hole 421, and at this time, the inner rod 420 can move relative to the outer rod 410 to extend into the outer rod 410. The inner rod 420 and the outer rod 410 are connected through the locking sleeve 430, so that special-shaped processing of the inner rod 420 and the outer rod 410 is avoided, universality of the inner rod 420 and the outer rod 410 is ensured, and manufacturing cost is reduced. In other alternative embodiments, the lock catch 431 may be formed on the outer rod 410 to cooperate with the second lock hole 421 of the inner rod 420, and the lock sleeve 430 may be omitted; a notch may be provided at the end of the outer rod 410, and the inner rod 420 may be locked by deforming the end of the outer rod 410 by the quick release clip.

As shown in fig. 10-12, a guide wall 432 is provided in the locking sleeve 430, and the guide wall 432 is spaced between the outer rod 410 and the inner rod 420. The guide wall 432 may form a gap between the outer wall of the inner pole 420 and the inner wall of the outer pole 410, so that the inner pole 420 may move more smoothly with respect to the outer pole 410. The guide wall 432 is integrally formed on the locking sleeve 430.

As shown in fig. 10 and 11, the guide wall 432 has a catch 433 protruding toward the outer rod 410, and the outer rod 410 has a catch hole to engage with the catch 433. This allows the locking sleeve 430 to be stably coupled to the outer rod 410.

As shown in fig. 3, 4, 14 and 15, the first folding bar set 310 and the second folding bar set 320 each include an upper link 330 and a lower link 340, the telescopic bar set 400 includes a hinge 440, the ends of the outer and

inner bars

410 and 420 are detachably coupled to the hinge 440 by screws, and the hinge 440, the upper link 330 and the lower link 340 are hinged together by a pivot. Thus, the special-shaped processing of the outer rod 410 and the inner rod 420 can be avoided, the hinge 440 is adapted to the outer rod 410 or the inner rod 420, and the universality of the outer rod 410 and the inner rod 420 is ensured. The lower link 340 is hinged at a lower end to the carrier 200 and at an upper end to the upper link 330. In alternative embodiments, the outer and

inner rods

410, 420 may also be directly hinged to the upper and

lower links

330, 340. The hinge 440 has a hinge portion 443 and an insertion portion 444, the hinge portion 443 being flat to hinge with the upper link 330 and the lower link 340, the insertion portion 444 having an insertion groove in which the outer lever 410 or the inner lever 420 is inserted.

Further, when the cart is unfolded, the hinge member 440 has a support rib thereon, and the support rib abuts against the upper link 330 and the lower link 340. This prevents the first folding bar assembly 310 and the second folding bar assembly 320 from being bent in opposite directions.

As shown in fig. 15, the supporting rib includes an upper rib position 441 and a lower rib position 442, the upper rib position 441 is abutted to the upper link 330, the lower rib position 442 is abutted to the lower link 340, and the upper rib position 441 and the lower rib position 442 are arranged in a staggered manner. Because the upper link 330 and the lower link 340 are staggered and hinged, the staggered upper rib position 441 and lower rib position 442 can be better adapted, and the butt joint flatness of the hinge 440 and the upper link 330 and the lower link 340 is improved.

As shown in fig. 1-9, the enclosing rod assembly 100 includes a transverse enclosing rod 110 and a longitudinal enclosing rod 120, a rotating assembly 500 is disposed between the upper connecting rod 330 in the vertical rod assembly and the longitudinal enclosing rod 120, the rotating assembly 500 includes a first rotating member 510 detachably and fixedly connected with the longitudinal enclosing rod 120 through a screw, and a second rotating member 520 detachably and fixedly connected with the vertical rod assembly through a screw, and the first rotating member 510 and the second rotating member 520 are rotationally connected. In other alternative embodiments, the transverse rail 110 and the longitudinal rail 120 are fixedly connected, and the upper link 330 is directly pivotally hinged to the rail assembly 100.

As shown in fig. 2, 6, 7 and 9, the first rotating member 510 has a first limiting portion 511, the second rotating member 520 has a second limiting portion 521, and when the cart is unfolded, the first limiting portion 511 and the second limiting portion 521 abut against each other. Therefore, the first folding rod set 310 and the second folding rod set 320 can be prevented from being bent in opposite directions, stability of the unfolded state of the cart is further improved, and the upright rod assembly can be bent in the correct direction in the folding process.

As shown in fig. 1, 3 and 4, the transverse surrounding rod 110 protrudes upwards from two ends to the middle, and the protrusion may be an inclined upward protrusion or a vertical upward protrusion. The upward projection of the lateral envelope 110 can increase the capacity of the cart. The second rotating member 520 includes a first fixing portion 522 and a second fixing portion 523, where the first fixing portion 522 is detachably and fixedly connected to the upright component, and the second fixing portion 523 is detachably and fixedly connected to the transverse surrounding rod 110. The upper connecting rod 330 rotates to drive the second rotating member 520 to rotate, and then drives the transverse enclosing rod 110 to rotate, so that the upward protruding transverse enclosing rod 110 protrudes downwards, occupation of vertical space of the transverse enclosing rod 110 is reduced, and when the foldable handle 600 is installed, the foldable handle 600 can be abducted.

As shown in fig. 1 and 5, the telescopic rod sets 400 are located at two sides of the cart, the middle of the carrying frame 200 is provided with a carrying plate 210, the carrying plate 210 is provided with a storage box 220 with an upward opening, and an opening of the storage box 220 is provided with a cover plate 230. When the cart is in the folded state, the cover 230 can still be opened, for example, the cart in the folded state is placed in the trunk, and the articles can be taken and placed by opening the cover 230 without unfolding the cart.

Claims

1. A collapsible cart comprising a rail assembly (100), a carrier (200) and a pole assembly connected between the rail assembly (100) and the carrier (200);

the folding pole assembly is characterized by comprising a first folding pole group (310) and a second folding pole group (320), wherein a telescopic pole group (400) is arranged between the first folding pole group (310) and the second folding pole group (320) so that the first folding pole group (310) and the second folding pole group (320) are in an unfolding or folding state.

2. A collapsible cart according to claim 1, wherein the telescopic rod group (400) comprises an outer rod (410) having an inner cavity and an inner rod (420) which is extendable into the inner cavity, a locking structure being provided between the inner rod (420) and the outer rod (410).

3. The foldable cart as claimed in claim 2, wherein the locking structure comprises a locking sleeve (430) sleeved on the outer rod (410), a lock catch (431) is arranged on the locking sleeve (430), a first lock hole (411) is arranged on the outer rod (410), a second lock hole (421) is arranged on the inner rod (420), and when the cart is unfolded, the lock catch (431) is embedded into the first lock hole (411) and the second lock hole (421).

4. A collapsible cart according to claim 3, wherein a guiding wall (432) is provided in the locking sleeve (430), the guiding wall (432) being spaced between the outer rod (410) and the inner rod (420).

5. The foldable cart as claimed in claim 4, wherein the guide wall (432) has a catch (433) protruding toward the outer rod (410), and the outer rod (410) has a catch hole to be engaged with the catch (433).

6. The collapsible cart of claim 2, wherein the first folding bar set (310) and the second folding bar set (320) each comprise an upper link (330) and a lower link (340), the telescoping bar set (400) comprising a hinge (440), the ends of the outer bar (410) and the inner bar (420) being detachably connected to the hinge (440), the upper link (330) and the lower link (340) being jointly hinged.

7. A collapsible cart according to claim 6, wherein the hinge (440) has a support rib thereon for abutting the upper link (330) and the lower link (340) when the cart is deployed;

the support rib comprises an upper rib position (441) and a lower rib position (442), the upper rib position (441) is abutted to the upper connecting rod (330), the lower rib position (442) is abutted to the lower connecting rod (340), and the upper rib position (441) and the lower rib position (442) are arranged in a staggered mode.

8. The foldable cart as recited in any one of claims 1-7, wherein said enclosing rod assembly (100) comprises a transverse enclosing rod (110) and a longitudinal enclosing rod (120), a rotating assembly (500) is disposed between said vertical rod assembly and said longitudinal enclosing rod (120), said rotating assembly (500) comprises a first rotating member (510) fixedly connected to said longitudinal enclosing rod (120) and a second rotating member (520) fixedly connected to said vertical rod assembly, said first rotating member (510) and said second rotating member (520) are rotatably connected.

9. The foldable cart according to claim 8, wherein the first rotating member (510) has a first limiting portion (511), the second rotating member (520) has a second limiting portion (521), and the first limiting portion (511) and the second limiting portion (521) abut when the cart is unfolded;

the horizontal surrounding rod (110) protrudes upwards from two ends to the middle, the second rotating piece (520) comprises a first fixing part (522) and a second fixing part (523), the first fixing part (522) is detachably and fixedly connected with the vertical rod assembly, and the second fixing part (523) is detachably and fixedly connected with the horizontal surrounding rod (110).

10. A collapsible cart according to any one of claims 1-7, wherein the telescopic rod group (400) is located at two sides of the cart, the middle part of the carrying frame (200) is provided with a carrying plate (210), the carrying plate (210) is provided with a storage box (220) with an upward opening, and the opening of the storage box (220) is provided with a cover plate (230).