CN221251406U - Barrows - Google Patents

Abstract

The utility model discloses a trolley, which has an unfolding state and a folding state, wherein the trolley comprises a bottom bracket assembly, a push rod frame and a seat frame, the bottom bracket assembly can be arranged in a folding way, the bottom bracket assembly at least comprises a front bracket, the seat frame is movably connected to the front bracket, the push rod frame can be arranged in a folding way relative to the bottom bracket assembly, when the trolley is in the unfolding state, the front bracket and the push rod frame are unfolded relatively and respectively extend obliquely from bottom to top to back, the seat frame extends upwards and forwards from the front bracket, and a containing space for setting a seat to provide a bearing support for a user can be formed between the seat frame and the push rod frame; when the trolley is in a folded state, the seat frame is folded relative to the front support, the bottom support assembly is folded, and the push rod frame is folded relative to the bottom support assembly. The whole structure of the cart is simple, and the whole size of the cart after being folded is smaller.

Description

Barrows

Technical Field

The utility model relates to a cart.

Background

The prior art carts include a frame having an expanded state and a collapsed state, a seat disposed on the frame, and a locking mechanism for locking the frame in the expanded state. The carts on the market are various in variety and various in structure, and on the basis of guaranteeing the basic bearing function of the carts, the structure of the carts and the folding operation steps of the frames are simplified as much as possible, which is always a continuously pursued goal of those skilled in the art.

Disclosure of Invention

The present utility model is directed to a new construction of cart that solves one or more of the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the trolley comprises a bottom bracket assembly, a push rod frame and a seat frame, wherein the bottom bracket assembly can be arranged in a folding manner, the bottom bracket assembly at least comprises a front bracket, the seat frame is movably connected to the front bracket, the push rod frame can be arranged in a folding manner relative to the bottom bracket assembly, when the trolley is in the unfolded state, the front bracket and the push rod frame are unfolded relatively and extend obliquely from bottom to top to rear respectively, and the seat frame extends upwards and forwards from the front bracket; when the trolley is in a folded state, the seat frame is folded relative to the front support, the bottom support assembly is folded, and the push rod frame is folded relative to the bottom support assembly.

Preferably, the seat frame has a first end and a second end which are respectively arranged at two different ends in the length direction of the seat frame, the first end is movably connected with the front bracket, the cart further comprises a seat made of flexible materials, and the seat is arranged between the second end and the push rod frame.

In some embodiments, the first end is slidably disposed on the front support in a direction extending along a length of the front support while being rotatable relative to the front support, the cart being in a deployed state, the first end being at a first height on the front support; the cart is in a folded state, the first end is at a second height on the front support, the second height is lower than the first height, and the second end and the upper portion of the front support are mutually folded.

In some embodiments, the push rod frame comprises an upper push rod, a lower push rod and a push handle, wherein the upper push rod and the lower push rod can be folded relatively along the length direction, the push handle is fixedly arranged on the upper portion of the upper push rod, the lower push rod is connected with the bottom bracket assembly, the seat comprises a sitting portion and a backrest portion extending upwards from the rear portion of the sitting portion, the sitting portion is arranged between the second end portion and the lower push rod, and the upper portion of the backrest portion is connected to the push handle.

In some embodiments, the seat frame is rotatably connected with the front support, where the seat frame includes two support rods separately disposed on the left and right sides, and a cross rod fixedly disposed on one end of the support rods on both sides and extending in the left and right directions, and the seat frame is connected with the front support through the cross rod, and the other ends of the two support rods are further provided with connectors for connecting the seat.

In some embodiments, a connecting seat is fixedly arranged on the front bracket, one end of the seat frame is rotatably connected to the connecting seat, and a locking structure for locking the seat frame and the connecting seat with each other is arranged between the seat frame and the connecting seat.

Preferably, the push rod frame is slidably connected with the front bracket along the length direction, and the bottom bracket assembly is further configured to be folded in a linkage manner during the sliding and folding process of the push rod frame relative to the front bracket.

In some embodiments, the bottom bracket assembly further comprises a rear bracket and a connecting frame, wherein the rear bracket extends obliquely from bottom to top in a unfolded state, an upper portion of the rear bracket is rotatably connected with an upper portion of the front bracket, and the connecting frame is rotatably connected between a lower portion of the push rod frame and the rear bracket.

In some embodiments, the upper portion of the front bracket is fixedly provided with a guide, the pusher carriage is slidably disposed with the guide, and the upper portion of the rear bracket is rotatably coupled to the guide.

In some embodiments, the front bracket comprises a front supporting rod extending along the up-down direction and a front bottom rod fixedly arranged at the lower part of the front supporting rod and extending along the left-right direction, and the push rod frame is connected with the front supporting rod in a sliding telescopic manner along the same length direction.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model provides a novel-structure trolley, which comprises a bottom bracket assembly with a front bracket, a push rod frame and a seat frame, wherein when the trolley is unfolded, the seat frame is unfolded relative to the front bracket, and a containing space can be formed between the seat frame and the push rod frame for setting a seat to provide bearing support for a user; when the frame is folded, the seat frame is folded relative to the front support, the bottom support assembly is folded by itself, and the push rod frame is folded relative to the bottom support assembly. The whole structure of the cart is simple, and the whole size of the cart after being folded is smaller.

Drawings

FIG. 1 is a schematic perspective view of a cart in an unfolded state according to an embodiment of the present utility model;

FIG. 2 is a schematic side elevational view of the cart of FIG. 1;

FIG. 3 is a schematic side elevational view of the cart of FIG. 1 in a collapsed state;

FIG. 4 is a schematic side elevational view of the cart of FIG. 3 further folded;

FIG. 5 is a schematic side elevational view of the cart of FIG. 4 further folded;

FIG. 6 is a schematic side elevational view of the cart of FIG. 5 further folded;

FIG. 7 is a schematic side elevational view of the cart of FIG. 1 in a collapsed condition;

wherein: 1. a push rod frame; 11. a push rod is downwards pushed; 12. an upper push rod; 13. a pushing handle;

2. A front bracket; 21. a front strut; 22. a front bottom bar; 23. a guide member;

3. A seat frame; 31. a support rod; 32. a cross bar; 33. a connector;

4. a rear bracket; 41. a rear strut;

5. a connecting frame; 51. a connecting rod;

6. A connecting seat;

7. a seat; 71. a sitting part; 72. a backrest part;

8. A front wheel; 9. and a rear wheel.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

The following description of the front, rear, left, right, up, down, etc. orientations are defined with reference to the orientations that a user observes when pushing the cart in the unfolded state, only for the purpose of clearly explaining the relative positional relationship of the rods/members in the cart.

Referring to fig. 1 to 7, a cart having an unfolded state and a folded state includes a bottom bracket assembly, a push rod frame 1 and a seat frame 3, wherein the bottom bracket assembly is foldable, the bottom bracket assembly includes at least a front bracket 2, the seat frame 3 is movably connected to the front bracket 2, and the push rod frame 1 is foldable relative to the bottom bracket assembly. In the unfolded state, the front bracket 2 and the push rod frame 1 are unfolded oppositely and respectively extend obliquely backwards from bottom to top, the seat frame 3 extends upwards and forwards from the front bracket 2, so that a containing space is formed between the seat frame 3 and the push rod frame 1, and a seat can be arranged in the containing space to provide bearing support for a user, as shown in fig. 1 and 2; when the stroller is in the folded condition, the seat frame 3 is folded relative to the front frame 2, the bottom frame assembly is folded and the push rod frame 1 is folded relative to the bottom frame assembly, as shown in fig. 7.

Referring to the drawings, the seat frame 3 has a first end and a second end which are respectively provided at two different ends in a longitudinal direction thereof, wherein the first end is a lower end of the seat frame 3 and the second end is an upper end of the seat frame 3 when the cart is in a unfolded state, wherein the first end is movably connected with the front frame 2, the cart further comprises a seat 7 made of a flexible material, and the seat 7 is provided between the second end and the push rod frame 1. The seat 7 can be installed through the cooperation of the seat frame 3 and the push rod frame 1, the whole structure is simple, the reduction of the quality of the whole cart is facilitated, and the daily carrying is convenient.

In this embodiment, the first end is rotatably connected to the front bracket 2, where the front bracket 2 is fixedly provided with a connection seat 6, and the first end can be rotatably opened or rotatably closed relative to the front bracket 2 by being rotatably connected to the connection seat 6. A locking structure (not shown) for locking the seat frame 3 and the connection seat 6 to each other is also provided between them. Specifically, the seat frame 3 includes two support rods 31 respectively disposed on the left and right sides, and a cross rod 32 fixedly disposed on one end of the support rods 31 on the two sides and extending in the left and right directions, where the cross rod 32 and the support rods 31 on the two sides are integrally disposed to form a U-shaped frame with an upward opening. The seat frame 3 is rotatably connected to the connecting seat 6 through the cross rod 32 so as to be connected with the front bracket 2, the other end parts of the two support rods 31 are also provided with connectors 33 for connecting the seat 7, and the left and right sides of the front part of the sitting part 31 are respectively fixedly arranged on the connectors 33 on the two sides.

In other embodiments, the first end portion may be provided on the front bracket 2 so as to be capable of both relatively rotating and sliding along the length extending direction of the front bracket 2, and in the unfolded state, the first end portion is at a first height on the front bracket 2; when the trolley is in the folded state, the first end is at a second height on the front support 2, the second height is lower than the first height, and the second end and the upper part of the front support 2 are mutually folded. That is, in the unfolded state, the seat frame 3 is located at a higher position on the front bracket 2 so that the seat 7 can be supported at a higher height position; when the cart is folded, the seat frame 3 slides down along the front bracket 2 and is folded together with the front bracket 2, so that the seat frame 3 overlaps with the front bracket 2 as much as possible in the length direction, and the folded height dimension is reduced.

In this embodiment, the push rod frame 1 includes an upper push rod 12 and a lower push rod 11 which can be relatively folded along the length direction, and a push handle 13 fixed on the upper part of the upper push rod 12, and is connected with the bottom bracket assembly by the lower push rod 11, where the upper push rod 12 and the lower push rod 11 are connected in a sliding and telescopic manner. As shown in fig. 2, the seat 7 includes a seating portion 71, and a backrest portion 72 extending upward from a rear portion of the seating portion 71, the seating portion 71 being provided between a second end portion of the seat frame 3 and the push down lever 11, an upper portion of the backrest portion 72 being connected to the push handle 13, which makes the backrest portion 72 a distance in the front-rear direction from the push down lever frame 1, so that the backrest portion 72 is deformed in the front-rear direction by a certain amount to provide a user with flexible support.

Referring to the drawings, in the present embodiment, the push rod stand 1 and the front stand 2 are slidably connected along the length direction, and the bottom stand assembly is further configured to be folded in a linkage manner during the sliding and folding process of the push rod stand 1 relative to the front stand 2, so as to simplify the steps of the cart unfolding and folding operation.

Specifically, the bottom bracket assembly further comprises a rear bracket 4 and a connecting frame 5, the rear bracket 4 extends obliquely forwards from bottom to top in the unfolded state, the upper part of the rear bracket 4 is rotationally connected with the upper part of the front bracket 2, the cart further comprises a front wheel 8 and a rear wheel 9, the front wheel 8 is arranged at the lower part of the front bracket 2, and the rear wheel 9 is arranged at the lower part of the rear bracket 4. One end of the link 5 is rotatably connected to the lower portion of the push rod frame 1, and the other end of the link 5 is rotatably connected to the rear bracket 4.

In this embodiment, the front bracket 2 includes a front strut 21 extending in the up-down direction, a front bottom rod 22 fixedly arranged at the lower part of the front strut 21 and extending in the left-right direction, two sets of front wheels 8, and two sets of front wheels 8 are respectively mounted at the left and right ends of the front bottom rod 22; the connecting seat 6 is specifically a sliding sleeve fixedly arranged on the front supporting rod 21, the upper part of the front supporting rod 21 is fixedly provided with a guide piece 23, the guide piece 23 is also a sliding sleeve here, and the push rod 11 can pass through the guide piece 23 and the connecting seat 6 in a sliding manner along the length direction of the push rod 11, so that the push rod and the front supporting rod 21 can be relatively slid to be unfolded and folded along the same length direction under the combined guiding action of the guide piece 23 and the connecting seat 6.

The rear bracket 4 comprises two rear supporting rods 41 which are respectively arranged at the left side and the right side and extend along the up-down direction, wherein the rear supporting rods 41 at the two sides are integrally arranged to enable the rear bracket 4 to be a U-shaped bracket with a downward opening, and the upper part of the U-shaped bracket is rotationally connected to the guide piece 23 so as to realize rotational connection with the front bracket 2; the connecting frame 5 is a U-shaped frame with an opening facing backwards, and is provided with two connecting rods 51 which are respectively arranged at the left side and the right side, the front part of the connecting frame 5 is rotationally connected with the lower part of the push rod 11, and the rear parts of the connecting rods 51 at the two sides are respectively rotationally connected with the rear supporting rods 41 at the corresponding sides. The rear wheels 9 are divided into two groups, and the two groups of rear wheels 9 are arranged at the lower parts of the two rear struts 41.

Referring to fig. 1 and 2, in the unfolded state of the cart of the present embodiment, the front bracket 2 and the rear bracket 4 are unfolded in the front-rear direction, the connecting frame 5 is supported between the push rod frame 1 and the rear bracket 4 in the front-rear direction, so that the bottom bracket assembly is unfolded, and the front wheel 8 and the rear wheel 9 are supported on the ground with a certain distance therebetween in the front-rear direction; the push rod rest 1 is itself unfolded in the length direction and is unfolded relative to the front bracket 2, and the push rod rest 1 is extended obliquely backward from bottom to top, the seat rest 3 is located at the front side of the front bracket 2 and is extended obliquely forward from bottom to top, and the seat 7 is provided between the upper portion of the seat rest 3 and the push rod rest 1, providing a user with flexible support.

When the cart needs to be folded, referring to fig. 3 to 6, the seat frame 3 is first rotated and folded relative to the front support 2, then the push rod frame 1 is slid and shortened along the length direction, and then the push rod frame 1 is further driven to move downwards, so that the push rod frame 1 slides downwards relative to the front support 2, the front part of the connecting frame 5 moves downwards in the process of sliding the push rod frame 1 downwards, and the connecting frame 5 rotates and drives the rear support 4 to fold relative to the front support 2 along the front-rear direction. Finally, as shown in fig. 7, the seat frame 3, the front support 2, the push rod frame 1, the connecting frame 5 and the rear support 4 are folded along the front-rear direction, the two groups of front wheels 8 are folded between the two groups of rear wheels 9 along the left-right direction, and the folded cart is in a very compact state, has a small volume and is convenient for a user to carry and use daily.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. A cart having an expanded state and a collapsed state, characterized by: the trolley comprises a bottom bracket assembly, a push rod frame and a seat frame, wherein the bottom bracket assembly can be arranged in a folding way, the bottom bracket assembly at least comprises a front bracket, the seat frame is movably connected to the front bracket, the push rod frame can be arranged in a folding way relative to the bottom bracket assembly, when the trolley is in an unfolding state, the front bracket and the push rod frame are unfolded relatively and extend obliquely from bottom to top to the rear respectively, and the seat frame extends upwards and forwards from the front bracket; when the trolley is in a folded state, the seat frame is folded relative to the front support, the bottom support assembly is folded, and the push rod frame is folded relative to the bottom support assembly.

2. The cart of claim 1, wherein: the seat frame is provided with a first end part and a second end part which are respectively arranged at two different ends in the length direction of the seat frame, the first end part is movably connected with the front support, the cart also comprises a seat made of flexible materials, and the seat is arranged between the second end part and the push rod frame.

3. The cart of claim 2, wherein: the first end part can relatively rotate and can be slidably arranged on the front bracket along the length extending direction of the front bracket, and the first end part is at a first height on the front bracket when the trolley is in a unfolded state; the cart is in a folded state, the first end is at a second height on the front support, the second height is lower than the first height, and the second end and the upper portion of the front support are mutually folded.

4. The cart of claim 2, wherein: the push rod frame comprises an upper push rod, a lower push rod and a push handle, wherein the upper push rod and the lower push rod can be folded relatively along the length direction, the push handle is fixedly arranged on the upper portion of the upper push rod, the lower push rod is connected with the bottom bracket assembly, the seat comprises a sitting portion and a backrest portion extending upwards from the rear portion of the sitting portion, the sitting portion is arranged between the second end portion and the lower push rod, and the upper portion of the backrest portion is connected to the push handle.

5. The cart of claim 2, wherein: the seat frame is rotationally connected relative to the front support, wherein the seat frame comprises two support rods which are respectively arranged at the left side and the right side, and a cross rod which is fixedly arranged at one end part of each support rod at the two sides and extends along the left-right direction, the seat frame is connected with the front support through the cross rod, and the other end parts of the two support rods are also provided with connectors used for connecting the seats.

6. The cart of claim 5, wherein: the front support is fixedly provided with a connecting seat, one end of the seat frame is rotationally connected to the connecting seat, and a locking structure for locking the seat frame and the connecting seat with each other is arranged between the seat frame and the connecting seat.

7. The cart of any of claims 1-6, wherein: the push rod frame and the front support can be connected in a sliding mode along the length direction, and the bottom support assembly is further configured to be folded in a linkage mode in the sliding and folding process of the push rod frame relative to the front support.

8. The cart of claim 7, wherein: the bottom bracket assembly further comprises a rear bracket and a connecting frame, wherein the rear bracket extends obliquely from bottom to top in a unfolded state, the upper part of the rear bracket is rotationally connected with the upper part of the front bracket, and the connecting frame is rotationally connected between the lower part of the push rod frame and the rear bracket.

9. The cart of claim 8, wherein: the upper part of the front support is fixedly provided with a guide piece, the push rod frame and the guide piece are arranged in a sliding fit manner, and the upper part of the rear support is rotationally connected to the guide piece.

10. The cart of claim 7, wherein: the front support comprises a front support rod extending along the up-down direction and a front bottom rod fixedly arranged at the lower part of the front support rod and extending along the left-right direction, and the push rod frame is connected with the front support rod in a sliding telescopic manner along the same length direction.