Foldable trolley with seat

Abstract

The utility model provides a foldable trolley with a seat, which is characterized in that cross rods of a support are hinged with side supports, a plurality of cross rods and two side supports are arranged at intervals to form bearing areas, a cushion and a backrest are arranged on the bearing area at the highest position, the cushion is fixed on the support, and the backrest is arranged on the cross rods and can rotate relative to the cushion; the connecting assemblies are hinged to the transverse rods, and stop blocks are arranged on the connecting assemblies and used for stopping the transverse rods from rotating. The two wheel sets are arranged at intervals and connected with the support, each wheel set comprises a first wheel and a second wheel, the first wheels are movably arranged relative to the support, the first wheels and the backrest are arranged on the same side, the moving direction of the first wheels is perpendicular to the extending direction of the length of the transverse rod, and the first wheels are moved to adjust the distance between the first wheels and the second wheels. The foldable trolley with the seat solves the technical problem that in the related technology, when people sit on the trolley with the seat, the people are prone to toppling over due to the unstable gravity center when leaning backwards.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, and particularly relates to a foldable trolley with a seat. Background Art

[0002] With the accelerating pace of people's lives, traveling outdoors at will has become the most common way for people to relieve stress. When people carry items or food over short distances outdoors, the demand for convenience, versatility, and comfort also increases. Traditional trolleys often only have a single carrying function and cannot meet the needs of users to take a temporary rest during the carrying process. Especially in outdoor environments such as parks, beaches, and picnic spots, users often need a comfortable place to take a short rest while carrying items.

[0003] Most trolleys on the market have a folding function, and after folding, they occupy a small area and are convenient for storage. There are also some products that combine trolleys with seats, but there are often deficiencies in the seat design. For example, the design of the seat and the trolley is not flexible enough, and people are prone to losing their balance due to leaning backward when sitting, resulting in tipping over.

[0004] Therefore, the existing technology needs to be further developed. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a foldable trolley with a seat to solve the technical problem that when people sit on a trolley with a seat, they are prone to tipping over due to loss of balance when leaning backward.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions: A foldable trolley with a seat is provided, including: a bracket, the bracket includes a plurality of crossbars and two side brackets, the crossbars are hinged to the side brackets, and the plurality of crossbars and the two side brackets are arranged at intervals to form a plurality of bearing areas arranged at intervals. A seat cushion and a backrest are provided on the bearing area at the highest position. The seat cushion is fixed on the bracket, the backrest is provided on one of the crossbars and is rotatable relative to the seat cushion; a connecting component, the connecting component is hinged to each crossbar, and a stop block is provided on the connecting component for blocking the rotation of the crossbar; a wheel set, there are two groups of wheel sets, the two groups of wheel sets are arranged at intervals and are both connected to the bracket. The wheel set includes a first wheel and a second wheel. The first wheel is movably arranged relative to the bracket. The first wheel is arranged on the same side as the backrest. The moving direction of the first wheel is perpendicular to the extension direction of the length of the crossbar, and the distance between the first wheel and the second wheel is adjusted by moving the first wheel.

[0007] Further, the bracket includes a plurality of vertical rods. The two ends of each crossbar in the same bearing area are respectively connected to the two vertical rods, and each crossbar is perpendicular to each vertical rod.

[0008] Further, two sides of the seat cushion are respectively connected to two of the vertical rods, and one side of the seat cushion away from the backrest is connected to the cross bar.

[0009] Further, the foldable trolley with a seat further includes a fixing member fixed on the cross bar. The fixing member includes a first fixing plate, a second fixing plate, and a third fixing plate, which are connected in sequence. The first fixing plate and the third fixing plate are arranged oppositely. A rotating shaft is provided on the connecting rod of the backrest, and two ends of the rotating shaft respectively pass through the first fixing plate and the third fixing plate. The rotating shaft is rotatably arranged relative to the fixing member to drive the backrest to be rotatable relative to the fixing member, and the second fixing plate is used to limit the rotation of the backrest.

[0010] Further, the plane where the second fixing plate is located forms an angle with the plane where the seat cushion is located, and the angle is an obtuse angle.

[0011] Further, the cross bar includes a first cross bar and a second cross bar. Two ends of the connecting component are respectively hinged to the first cross bar and the second cross bar, and the stop blocks respectively stop the first cross bar and the second cross bar.

[0012] Further, there are multiple connecting components, and each connecting component is arranged in one-to-one correspondence with each bearing area.

[0013] Further, the connecting component further includes: two first connecting pieces, which are hinged to the first cross bar, and a first gap is provided between the two first connecting pieces, and the first cross bar is located between the two first connecting pieces; two second connecting pieces, which are hinged to the second cross bar, and a second gap is provided between the two second connecting pieces, and the second cross bar is located between the two second connecting pieces; a connecting block, which is connected to the stop block, and a first fixing portion and a second fixing portion are respectively provided at two ends of the connecting block. The first fixing portion is fixedly connected to the two first connecting pieces, and the second fixing portion is fixedly connected to the two second connecting pieces; when the trolley is in the folded state, the first cross bar is located in the first gap, and the second cross bar is located in the second gap; when the trolley is in the extended state, two ends of the stop block respectively abut against the first cross bar and the second cross bar to block the rotation of the first cross bar and the second cross bar.

[0014] Further, a first through hole is provided on the first connecting piece, and a second through hole is provided on the second connecting piece. The connecting component further includes two fastening pins, which are detachably arranged; the connecting component further includes an anti-pinch cover, which covers and buckles on the stop block, the two first connecting pieces, the two second connecting pieces, and the connecting block. Two through holes are provided on the anti-pinch cover, and the two through holes are respectively arranged corresponding to the first through hole and the second through hole; when the trolley is in the extended state, one fastening pin passes through one of the through holes and the first through hole to be connected to the first cross bar, and the other fastening pin passes through the other through hole and the second through hole to be connected to the second cross bar.

[0015] Further, it further includes a telescopic component, which includes an outer tube and an inner tube. The outer tube is sleeved on the inner tube, the outer tube is fixed to the bottom of the bracket, the inner tube is movably arranged relative to the outer tube, the first wheel is connected to the inner tube, the second wheel is connected to the outer tube, and moving the inner tube drives the first wheel to move, thereby adjusting the distance between the first wheel and the second wheel.

[0016] Beneficial effects:

[0017] 1. For the foldable trolley with a seat of the present utility model, the first wheel in the wheel set is movably arranged. When the user leans backward, the distance between the two wheels can be adjusted as needed, thereby adjusting the load-bearing center of gravity of the seat being ridden, ensuring the stability of the seat, and preventing the user from tipping over.

[0018] 2. For the foldable trolley with a seat of the present utility model, the stop block on the connecting component effectively blocks the rotation of the cross bar, ensuring the stability of the trolley in the extended state, not only improving the load-bearing capacity of the trolley, but also providing a safer use experience for the user.

[0019] 3. For the foldable trolley with a seat of the present utility model, by designing a foldable bracket and connecting component, the trolley can be easily folded up when not in use, greatly reducing the occupied volume and facilitating storage and carrying. Description of the drawings

[0020] Figure 1 is a schematic diagram of the foldable trolley with a seat adopted in the embodiment of the present utility model in the unfolded state;

[0021] Figure 2 is Figure 1 a partial enlarged view of part A in

[0022] Figure 3 is a schematic diagram of the backrest of the foldable trolley with a seat adopted in the embodiment of the present utility model in the folded state;

[0023] Figure 4 is a usage state diagram of the foldable trolley with a seat adopted in the embodiment of the present utility model with the first wheel extended;

[0024] Figure 5 is an exploded view of the connecting component of the foldable trolley with a seat adopted in the embodiment of the present utility model;

[0025] Figure 6 is a structural schematic diagram of the anti-pinch cover of the foldable trolley with a seat adopted in the embodiment of the present utility model;

[0026] Figure 7 is a usage state diagram of the foldable trolley with a seat adopted in the embodiment of the present utility model with the first wheel retracted;

[0027] Figure 8 It is a schematic diagram of the foldable trolley with a seat adopted in the embodiment of the present utility model in a folded state.

[0028] Among them, the above-mentioned drawings include the following reference numerals:

[0029] 1. Bracket; 11. Cross bar; 111. First cross bar; 112. Second cross bar; 12. Side bracket; 13. Vertical bar; 2. Loading area; 31. Cushion; 32. Backrest; 321. Connecting rod; 322. Rotating shaft; 33. Fixing member; 331. First fixing plate; 332. Second fixing plate; 333. Third fixing plate; 4. Connecting assembly; 41. Stopper; 42. First connecting piece; 421. First gap; 422. First through hole; 43. Second connecting piece; 431. Second gap; 432. Second through hole; 44. Connecting block; 441. First fixing portion; 442. Second fixing portion; 45. Fastening pin; 46. Anti-pinch cover; 461. Through hole; 5. Wheel set; 51. First wheel; 52. Second wheel; 6. Telescopic assembly; 6. Telescopic assembly; 61. Outer tube; 62. Inner tube; 71. Handle; 72. Lifting rod; 73. Soft rubber pad; 74. Binding buckle; 75. Limiting strip; 76. Handle; 77. Basket. Detailed implementation manners

[0030] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] According to the embodiment of the present utility model, a foldable trolley with a seat is provided. Please refer to Figures 1 to 8, including: a bracket 1, the bracket 1 includes a plurality of cross bars 11 and two side brackets 12, the cross bars 11 are hinged to the side brackets 12, the plurality of cross bars 11 and the two side brackets 12 are arranged at intervals to form a plurality of bearing areas 2 arranged at intervals, a seat cushion 31 and a backrest 32 are arranged on the bearing area 2 at the highest position, the seat cushion 31 is fixed on the uppermost bearing area 2, the backrest 32 is arranged on one of the cross bars 11 and is rotatable relative to the seat cushion 31; a connecting component 4, the connecting component 4 is hinged to each cross bar 11, and a stop block 41 is arranged on the connecting component 4 for blocking the rotation of the cross bar 11; a wheel set 5, there are two groups of wheel sets 5, the two groups of wheel sets 5 are arranged at intervals and are both connected to the bracket 1, the wheel set 5 includes a first wheel 51 and a second wheel 52, the first wheel 51 is movably arranged relative to the bracket 1, the first wheel 51 is arranged on the same side as the backrest 32, the moving direction of the first wheel 51 is perpendicular to the extending direction of the length of the cross bar 11, and the distance between the first wheel 51 and the second wheel 52 is adjusted by moving the first wheel 51. The cross bar 11 is hinged to the side bracket 12 to facilitate the folding and storage of the trolley; the bearing areas 2 formed by the plurality of cross bars 11 and the side brackets 12 arranged at intervals are used for placing items to be transported, a seat cushion 31 and a rotatable backrest 32 are arranged on the bearing area 2 at the top of the trolley. At the same time, the first wheel 51 is movably arranged relative to the bracket 1, and the moving direction of the first wheel 51 is perpendicular to the extending direction of the length of the cross bar 11, that is, the plane where the backrest 32 is located is perpendicular to the moving direction of the first wheel 51. When the user finds that the center of gravity is unstable after leaning on the backrest 32, by moving the first wheel 51, the distance between the first wheel 51 and the second wheel 52 is increased, so as to change the bearing center of gravity of the trolley, improve the stability of the trolley, prevent the user from tipping over, and improve the riding comfort. The foldable trolley with a seat of the present invention solves the technical problem that people are prone to tipping over due to unstable center of gravity when leaning backward on a trolley with a seat in the related art.

[0032] Refer to Figure 1 , for the foldable trolley with a seat in this embodiment, the bracket 1 includes a plurality of vertical bars 13, both ends of each cross bar 11 in the same bearing area 2 are respectively connected to two vertical bars 13, and each cross bar 11 and each vertical bar 13 are perpendicular to each other. The perpendicular connection of the vertical bars 13 and the cross bars 11 forms a stable and rigid support frame structure, which can better disperse the force when bearing the load, thereby improving the load-bearing capacity of the entire trolley.

[0033] Refer to Figure 1 and Figure 2 , for the foldable trolley with a seat in this embodiment, both sides of the seat cushion 31 are respectively connected to two of the vertical bars 13, and the side of the seat cushion 31 away from the backrest 32 is connected to the cross bar 11. By firmly connecting the seat cushion 31 to the vertical bars 13 and the cross bar 11, the supporting area of the seat cushion 31 is increased, making the user's sitting posture more natural and comfortable.

[0034] Refer to Figure 2 、 Figure 3 and Figure 4 For the foldable trolley with a seat in this embodiment, the foldable trolley with a seat further includes a fixing member 33. The fixing member 33 is fixed on the cross bar 11. The fixing member 33 includes a first fixing plate 331, a second fixing plate 332 and a third fixing plate 333. The first fixing plate 331, the second fixing plate 332 and the third fixing plate 333 are connected in sequence. The first fixing plate 331 and the third fixing plate 333 are arranged oppositely. A rotating shaft 322 is arranged on the connecting rod 321 on the backrest 32. Both ends of the rotating shaft 322 pass through the first fixing plate 331 and the third fixing plate 333 respectively. The rotating shaft 322 is rotatably arranged relative to the fixing member 33 to drive the backrest 32 to be rotatable relative to the fixing member 33. The second fixing plate 332 is used to limit the rotation of the backrest 32. The second fixing plate 332 plays a role in limiting the rotation range of the backrest 32, and the angle is locked through the second fixing plate 332 to keep the backrest 32 stable.

[0035] Refer to Figure 4 For the foldable trolley with a seat in this embodiment, the plane where the second fixing plate 332 is located has an included angle with the plane where the seat cushion 31 is located, and the included angle is an obtuse angle. The obtuse angle design conforms to the ergonomic principle, making the angle between the backrest 32 and the seat cushion 31 more in line with the needs of the natural sitting posture of the human body, and helping to reduce the fatigue of the user during long-term sitting.

[0036] Refer to Figure 1 and Figure 5 For the foldable trolley with a seat in this embodiment, the cross bar 11 includes a first cross bar 111 and a second cross bar 112. Both ends of the connecting component 4 are hinged to the first cross bar 111 and the second cross bar 112 respectively. The stop blocks 41 stop the first cross bar 111 and the second cross bar 112 respectively. The first cross bar 111 and the second cross bar 112 are hinged to the connecting component 4, so that the first cross bar 111 and the second cross bar 112 can rotate relative to each other within a certain range, so that the trolley can be more conveniently operated when it needs to be folded, and the resistance during the folding process is reduced. When the first cross bar 111 and the second cross bar 112 rotate to the same straight line, the stop blocks 41 prevent the first cross bar 111 and the second cross bar 112 from continuing to rotate, thereby fixing the trolley to the extended state.

[0037] Refer to Figure 1 and Figure 6 For the foldable trolley with a seat in this embodiment, there are multiple connecting components 4, and each connecting component 4 is arranged corresponding to each bearing area 2 one by one. When the trolley carries heavy objects or passengers, the multiple connecting components 4 can share the load more evenly, prevent a single component from being damaged due to excessive pressure, and extend the service life of the trolley.

[0038] Refer to Figure 5 , for the foldable trolley with a seat in this embodiment, the connecting component 4 further includes: two first connecting pieces 42, the two first connecting pieces 42 are hinged to the first crossbar 111, a first gap 421 is provided between the two first connecting pieces 42, and the first crossbar 111 is located between the two first connecting pieces 42; two second connecting pieces 43, the two second connecting pieces 43 are hinged to the second crossbar 112, a second gap 431 is provided between the two second connecting pieces 43, and the second crossbar 112 is located between the two second connecting pieces 43; a connecting block 44, the connecting block 44 is connected to the stop block 41, the two ends of the connecting block 44 are respectively provided with a first fixing portion 441 and a second fixing portion 442, the first fixing portion 441 is fixedly connected to the two first connecting pieces 42, and the second fixing portion 442 is fixedly connected to the two second connecting pieces 43; when the trolley is in the folded state, the first crossbar 111 is located in the first gap 421, and the second crossbar 112 is located in the second gap 431, reducing the volume after folding and making the trolley more convenient to carry and store. When the trolley is in the extended state, the two ends of the stop block 41 are respectively abutted against the first crossbar 111 and the second crossbar 112 to block the rotation of the first crossbar 111 and the second crossbar 112, ensuring the stability and firmness of the trolley in the extended state. The connecting block 44 is fixedly connected to the two first connecting pieces 42 and the two second connecting pieces 43 respectively through the first fixing portion 441 and the second fixing portion 442 at its two ends, and the double-fixing design enhances the overall strength of the connecting component 4, making the connection between the crossbars more stable and reliable.

[0039] Refer to Figure 5 and Figure 6, for the foldable trolley with a seat in this embodiment, a first through hole 422 is provided on the first connecting piece 42, and a second through hole 432 is provided on the second connecting piece 43. The connecting component 4 further includes two fastening pins 45, and the fastening pins 45 are detachably arranged; the connecting component 4 further includes an anti-pinch cover 46, and the anti-pinch cover 46 is buckled on the stop block 41, two first connecting pieces 42, two second connecting pieces 43 and the connecting block 44. Two through holes 461 are provided on the anti-pinch cover 46, and the two through holes 461 are respectively arranged corresponding to the first through hole 422 and the second through hole 432; when the trolley is in the extended state, one fastening pin 45 passes through one of the through holes 461 and the first through hole 422 to be connected with the first cross bar 111, and the other fastening pin 45 passes through the other through hole 461 and the second through hole 432 to be connected with the second cross bar 112. The fastening connection mode of the two fastening pins 45 greatly enhances the stability of the trolley in the extended state. The detachable fastening pins 45 enable the trolley to be easily removed when folding is required, thus releasing the fixed relationship between the cross bar 11 and the connecting component 4, facilitating the folding and storage of the trolley. The design of the anti-pinch cover 46 not only plays a decorative and protective role, but also avoids the risk of the user's fingers being pinched during use, and also helps to keep the connecting component 4 clean and intact.

[0040] Refer to Figure 4 and Figure 7 , for the foldable trolley with a seat in this embodiment, it further includes a telescopic component 6. The telescopic component 6 includes an outer tube 61 and an inner tube 62. The outer tube 61 is sleeved on the inner tube 62. The outer tube 61 is fixed at the bottom of the bracket 1. The inner tube 62 is movably arranged relative to the outer tube 61. The first wheel 51 is connected with the inner tube 62, and the second wheel 52 is connected with the outer tube 61. Moving the inner tube 62 drives the first wheel 51 to move, thereby adjusting the distance between the first wheel 51 and the second wheel 52. When it is necessary to carry heavy objects or passengers, by moving the inner tube 62 to drive the first wheel 51 to move and adjusting the distance between the first wheel 51 and the second wheel 52, the center of gravity of the trolley can be made more stable. In addition, on uneven roads or stairs, increasing the wheel spacing can improve stability and passability, while on flat roads, the wheel spacing can be reduced to reduce the occupied space.

[0041] Refer to Figure 1, when the foldable trolley with a seat is in the unfolded state, it can enable users to take a temporary rest. A soft rubber pad 73 is provided on the upper part of the side bracket 12. The users taking a seat can rest their arms on the soft rubber pad 73, improving the user experience. A limiting bar 75 is provided between the upper and lower crossbars 11. The limiting bar 75 is composed of two articulated strip plates. Both sides of the strip plates are articulated with the crossbar 11. A positioning plate is provided at the articulated part of the two strip plates for restricting and supporting the two crossbars 11 to prevent the bracket 1 from shaking. A handle 71 is installed on one of the side brackets 12. The handle 71 is connected to a lifting rod 72. By moving the lifting rod 72, the height of the handle 71 is adjusted so that the trolley is suitable for users of different heights. The crossbar 11 and the vertical rod 13 at the bottom of the bracket 1 are connected with a basket 77, and sundries can be placed in the basket 77.

[0042] Refer to Figure 8 , lift the handle 76 (the structure of the handle 76 can be that ropes are connected to both sides of the seat), so that the connecting component 4 rises with the handle 76. The first crossbar 111 and the second crossbar 112 on both sides of the connecting component 4 rotate, driving the vertical rods 13, the seat cushion 31 and the backrest 32 on both sides to move closer to the middle, folding up the trolley until the first crossbar 111 and the second crossbar 112 are parallel to each other. Binding buckles 74 that are mutually clamped are provided on the first crossbar 111 and the second crossbar 112 to prevent the folded trolley from unfolding.

[0043] For the foldable trolley with a seat in this embodiment, different numbers of seats can be extended along the length direction of the first crossbar 111 or the second crossbar 112. For the sake of the overall aesthetic structure, the number of seats on the first crossbar 111 and the second crossbar 112 is equal.

[0044] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order different from those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0045] Optionally, the specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be elaborated here.

[0046] The serial numbers of the above embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0047] In the above-mentioned embodiments of the present application, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0048] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A foldable trolley with a seat, characterized in that: include: A bracket (1), the bracket (1) comprising a plurality of cross bars (11) and two side brackets (12), the cross bars (11) being hinged to the side brackets (12), the plurality of cross bars (11) and the two side brackets (12) being arranged at intervals to form a plurality of bearing areas (2) arranged at intervals, a seat cushion (31) and a backrest (32) being arranged on the bearing area (2) at the highest position, the seat cushion (31) being fixed on the bracket (1), the backrest (32) being arranged on one of the cross bars (11) and being rotatable relative to the seat cushion (31); A connecting assembly (4), wherein the connecting assembly (4) is hingedly connected to each of the cross bars (11), and a stop block (41) is provided on the connecting assembly (4) for preventing the cross bars (11) from rotating; A wheel set (5), wherein the wheel set (5) comprises two sets, the two sets of wheel sets (5) are arranged at intervals and are both connected to the bracket (1), the wheel set (5) comprises a first wheel (51) and a second wheel (52), the first wheel (51) is movably arranged relative to the bracket (1), the first wheel (51) is arranged on the same side as the backrest (32), the moving direction of the first wheel (51) is perpendicular to the extension direction of the length of the crossbar (11), and the distance between the first wheel (51) and the second wheel (52) is adjusted by moving the first wheel (51).

2. The foldable trolley with a seat according to claim 1, characterized in that: The bracket (1) comprises a plurality of vertical rods (13), and the two ends of each cross rod (11) in the same bearing area (2) are respectively connected to two of the vertical rods (13), and each cross rod (11) and each vertical rod (13) are perpendicular to each other.

3. The foldable trolley with a seat according to claim 2, characterized in that: Both sides of the seat cushion (31) are respectively connected to two of the vertical rods (13), and the side of the seat cushion (31) away from the backrest (32) is connected to the crossbar (11).

4. The foldable trolley with a seat according to claim 2, characterized in that: The foldable trolley with a seat also includes a fixing member (33), the fixing member (33) is fixed on the cross bar (11), the fixing member (33) includes a first fixing plate (331), a second fixing plate (332) and a third fixing plate (333), the first fixing plate (331), the second fixing plate (332) and the third fixing plate (333) are connected in sequence, the first fixing plate (331) and the third fixing plate (333) are arranged opposite to each other, a rotating shaft (322) is arranged on the connecting rod (321) on the backrest (32), two ends of the rotating shaft (322) pass through the first fixing plate (331) and the third fixing plate (333) respectively, the rotating shaft (322) is rotatably arranged relative to the fixing member (33) to drive the backrest (32) to rotate relative to the fixing member (33), and the second fixing plate (332) is used to limit the rotation of the backrest (32).

5. The foldable trolley with a seat according to claim 4, characterized in that: The plane where the second fixing plate (332) is located and the plane where the seat cushion (31) is located have an included angle, and the included angle is an obtuse angle.

6. The foldable trolley with a seat according to claim 1, characterized in that: The cross bar (11) comprises a first cross bar (111) and a second cross bar (112); two ends of the connecting assembly (4) are respectively hinged to the first cross bar (111) and the second cross bar (112); and the stop block (41) stops the first cross bar (111) and the second cross bar (112) respectively.

7. The foldable trolley with a seat according to claim 6, characterized in that: There are a plurality of connection components (4), and each connection component (4) is arranged in one-to-one correspondence with each bearing area (2).

8. The foldable trolley with a seat according to claim 7, characterized in that: The connection component (4) further comprises: Two first connecting pieces (42), the two first connecting pieces (42) being hinged to the first cross bar (111), a first gap (421) being provided between the two first connecting pieces (42), and the first cross bar (111) being located between the two first connecting pieces (42); two second connecting pieces (43), the two second connecting pieces (43) being hinged to the second cross bar (112), a second gap (431) being provided between the two second connecting pieces (43), and the second cross bar (112) being located between the two second connecting pieces (43); a connecting block (44), the connecting block (44) being connected to the stop block (41), the two ends of the connecting block (44) being respectively provided with a first fixing portion (441) and a second fixing portion (442), the first fixing portion (441) being fixedly connected to the two first connecting pieces (42), and the second fixing portion (442) being fixedly connected to the two second connecting pieces (43); When the trolley is in a folded state, the first cross bar (111) is located in the first gap (421), and the second cross bar (112) is located in the second gap (431); when the trolley is in an extended state, two ends of the stop block (41) respectively abut against the first cross bar (111) and the second cross bar (112) to prevent the first cross bar (111) and the second cross bar (112) from rotating.

9. The foldable trolley with seat according to claim 8, characterized in that: The first connecting piece (42) is provided with a first through hole (422), the second connecting piece (43) is provided with a second through hole (432), and the connecting assembly (4) further comprises two fastening pins (45), and the fastening pins (45) are detachably provided; The connecting assembly (4) further comprises an anti-pinch cover (46), wherein the anti-pinch cover (46) is buckled on the stop block (41), the two first connecting pieces (42), the two second connecting pieces (43) and the connecting block (44), and the anti-pinch cover (46) is provided with two through holes (461), and the two through holes (461) are respectively provided corresponding to the first through hole (422) and the second through hole (432); When the trolley is in an extended state, one of the fastening pins (45) passes through one of the through holes (461) and the first through hole (422) to be connected to the first cross bar (111), and another of the fastening pins (45) passes through another of the through holes (461) and the second through hole (432) to be connected to the second cross bar (112).

10. The foldable trolley with a seat according to claim 1, characterized in that: The invention also comprises a telescopic assembly (6), wherein the telescopic assembly (6) comprises an outer tube (61) and an inner tube (62), wherein the outer tube (61) is sleeved on the inner tube (62), the outer tube (61) is fixed at the bottom of the bracket (1), and the inner tube (62) is movably arranged relative to the outer tube (61), the first wheel (51) is connected to the inner tube (62), and the second wheel (52) is connected to the outer tube (61), and the inner tube (62) is moved to drive the first wheel (51) to move, thereby adjusting the distance between the first wheel (51) and the second wheel (52).

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