Trolley

Abstract

The trolley comprises a trolley frame and a pull rod assembly, a containing groove is formed in the bottom of the trolley frame, and pulleys are connected to the bottom of the trolley frame; the pull rod assembly comprises a pull rod and a first rotating seat, the pull rod is arranged on the first rotating seat, the first rotating seat can rotate relative to the frame, and at least a first position and a second position are formed. When the pull rod is located at the first position and the user does not apply external force, the pull rod keeps a standing state relative to the frame, and the situation that the pull rod and / or the first rotating seat are / is damaged due to the fact that the trolley vibrates in the goods loading process and the pull rod automatically rotates relative to the frame under the gravity acting force of the pull rod is avoided; when the trolley is located at the second position, the pull rod is contained in the containing groove formed in the bottom of the trolley frame, at the moment, the top of the trolley frame can load goods with larger size and is not affected by the pull rod, in addition, by containing the pull rod at the bottom of the trolley frame, the occupied space for storing the trolley can be reduced, and the attractiveness is improved.

Description

Technical Field

[0001] The present application relates to the technical field of trolleys, and in particular to a trolley. Background Art

[0002] A trolley is a tool for carrying and pushing objects manually in daily life. It is very convenient for carrying light objects over short distances and is widely used for carrying objects in places where motor vehicles are inconvenient to use. A pull rod is usually required on a trolley. The user can control the forward, reverse and steering movement of the trolley by operating the pull rod. The lever generated by the pull rod can also be used to reduce the user's physical exertion during operation. However, the pull rod on existing trolleys is usually fixed to the body of the trolley, and the handle cannot be disassembled and folded or is difficult to disassemble and fold. When storing the trolley, the handle will occupy excess storage space, resulting in a waste of storage space. Utility Model Content

[0003] Based on this, it is necessary to provide a trolley to address the problems of low air intake efficiency and poor refrigeration effect when hot and cold cups are placed in cup holders.

[0004] A trolley of the present application comprises: a frame and a pull rod assembly, wherein:

[0005] A storage groove is provided at the bottom of the frame, and a pulley is connected to the bottom of the frame;

[0006] The pull rod assembly includes a pull rod and a first rotating seat, the pull rod is arranged on the first rotating seat, the first rotating seat can rotate relative to the frame, and at least form a first position and a second position, when the first rotating seat is in the first position, the first rotating seat is engaged with the frame, and the pull rod remains upright relative to the frame, when the first rotating seat is in the second position, the pull rod is inserted into the storage groove, and the pull rod is engaged with the frame.

[0007] The trolley disclosed in the present application has a pull rod that is rotatably connected to the frame via a first rotating seat, and forms at least a first position and a second position. When the first rotating seat is in the first position, the pull rod remains in a standing state relative to the frame when the user does not apply external force, thereby preventing the trolley from vibrating during the loading of goods. Under the action of gravity of the pull rod, the pull rod rotates relative to the frame by itself, causing stress damage to the pull rod and / or the first rotating seat. When the first rotating seat is in the second position, the pull rod is stored in a storage groove provided at the bottom of the frame. At this time, the top of the frame can load larger goods without being affected by the pull rod. In addition, by storing the pull rod at the bottom of the frame, the space occupied by the trolley for storage can be reduced and the aesthetics can be improved.

[0008] In one embodiment, a connecting seat with a certain height is extended from the bottom of the frame, and the number of the connecting seats is two, and the two connecting seats are arranged opposite to each other; the end of the first rotating seat away from the pull rod is at least partially clamped between the two connecting seats, and the connecting seat and the first rotating seat are respectively provided with a first through hole and a second through hole, and the first through hole and the second through hole are arranged opposite to each other, and the connecting seat and the first rotating seat are synchronously inserted into the first through hole and the second through hole by a circular shaft to achieve a rotational connection.

[0009] The trolley in the above embodiment further defines that the first rotating seat and the connecting seat are rotatably connected through a circular shaft. Specifically, the first rotating seat is partially clamped between the two connecting seats, the two connecting seats are respectively provided with a first through hole, and the connecting seats are provided with a second through hole. The circular shaft first penetrates the first through hole on the left connecting seat, then penetrates the second through hole on the first rotating seat, and finally penetrates the first through hole on the right connecting seat. Based on the above structure, the first connecting seat can rotate relative to the frame, the structure is simple and reliable, and not easy to fail.

[0010] In one of the embodiments, movable blocking members are provided at both ends of the circular axis at the bottom of the frame, the movable blocking members are detachably connected to the frame, and the projection of the movable blocking members on the connecting seat at least partially blocks the first through hole.

[0011] The trolley in the above embodiment is further defined as having movable blocking members respectively arranged at both ends of the circular shaft at the bottom of the frame, the projection portion of the movable blocking member on the connecting seat blocks the first through hole, and the two movable blocking members restrict the movement of the circular shaft relative to the first through hole and the second through hole, thereby ensuring the reliability of the rotational connection between the first rotating seat and the connecting seat.

[0012] In one of the embodiments, a movable blocking member and a fixed blocking member are respectively provided at both ends of the circular axis at the bottom of the frame, and the projection of the fixed blocking member on the connecting seat at least partially blocks the first through hole. The movable blocking member is detachably connected to the frame, and the projection of the movable blocking member on the connecting seat at least partially blocks the first through hole.

[0013] In one embodiment, the movable blocking member is a screw, and the movable blocking member is threadedly connected to the frame.

[0014] The trolley in the above embodiment further defines the movable blocking member as a screw. Accordingly, a threaded hole matching the screw is provided on the frame. The movable blocking member and the frame are connected by threads to achieve quick disassembly and assembly. When the screw is assembled on the frame, the nut on the screw is arranged opposite to the first through hole, and the round shaft cannot be detached from the first through hole under the obstruction of the nut.

[0015] In one embodiment, the edge of the frame is connected to a surrounding edge, the connecting seat is connected to the surrounding edge and / or the frame, and a positioning marble is provided on the first rotating seat. When the first rotating seat is located at the first position, the positioning marble is engaged with the surrounding edge, and the positioning marble can perform telescopic movement relative to the first rotating seat.

[0016] The trolley in the above embodiment further defines that the edge of the frame is connected to a surrounding edge, and a positioning marble is provided on the first rotating seat. When the positioning marble is engaged with the surrounding edge, the first rotating seat is maintained in the first position, and the pull rod remains in a standing state relative to the frame. Since the positioning marble can perform telescopic movement relative to the first rotating seat, when the user applies force to the pull rod, the positioning marble is elastically deformed by the pressure of the surrounding edge, and the positioning marble can be disengaged from the surrounding edge. At this time, the pull rod can rotate at any angle relative to the frame between the first position and the second position.

[0017] In one embodiment, one of the outer surfaces of the first rotating seat and the connecting seat is provided with an arc-shaped protrusion, and the other is provided with a first arc-shaped groove and a second arc-shaped groove. When the first rotating seat is located at the first position, the arc-shaped protrusion is engaged with the first arc-shaped groove, and when the first rotating seat is located at the second position, the arc-shaped protrusion is engaged with the second arc-shaped groove.

[0018] The trolley in the above embodiment further defines that one of the outer surfaces of the first rotating seat and the connecting seat is provided with an arc-shaped protrusion, and the other is provided with a first arc-shaped groove and a second arc-shaped groove. For example, the arc-shaped protrusion is formed on the first rotating seat, and the first arc-shaped groove and the second arc-shaped groove are formed on the connecting seat. When the first rotating seat is in the first position, the arc-shaped protrusion on the first rotating seat is engaged with the first arc-shaped groove on the connecting seat. On the basis of the engagement of the positioning marble with the surrounding edge, the engagement of the arc-shaped protrusion with the first arc-shaped groove further improves the stability of the pull rod to remain standing relative to the frame. In addition, when the first rotating seat rotates to the second position, the arc-shaped protrusion is engaged with the second arc-shaped groove on the connecting seat, so that the pull rod remains stored in the storage groove on the frame.

[0019] In one embodiment, the pull rod assembly further includes a damping member, which is disposed on the first rotating seat, and the damping member is at least partially sandwiched between the circular shaft and the first rotating seat.

[0020] The trolley in the above embodiment is further defined as a damping member provided between the circular shaft and the first rotating seat. The friction between the damping member and the circular shaft causes a certain deceleration effect when the first rotating seat rotates relative to the frame. In particular, when the first rotating seat is in the first position, in addition to the clamping connection between the positioning marbles and the surrounding edge, the friction between the damping member and the circular shaft causes the pull rod to remain in a standing state, thereby preventing the pull rod from tipping over due to non-human forces.

[0021] In one of the embodiments, a limiting portion is provided on the end of the bottom of the frame away from the first rotating seat, the limiting portion is elastic, the projection of the limiting portion on the frame is at least partially located within the range of the storage groove, and the limiting portion can be clamped relative to the pull rod.

[0022] In one embodiment, the pull rod is a telescopic pull rod.

[0023] In one of the embodiments, a mounting groove and a third through hole connected to the mounting groove are formed on the first rotating seat, and the third through holes are multiple in number and are spaced apart on the surface of the first rotating seat. The pull rod is partially inserted into the mounting groove, and the pull rod is formed with a plurality of fourth through holes corresponding to the third through holes one by one, and one of the third through holes and the fourth through holes is provided with threads.

[0024] The trolley in the above embodiment further defines that the pull rod is inserted into an installation groove provided on the first rotating seat, and the first rotating seat is provided with a plurality of third through holes connected to the installation grooves. Exemplarily, the number of the third through holes is two, and the two third through holes are distributed on the surfaces on the left and right sides of the first rotating seat, and a threaded structure is formed on the third through hole. The pull rod is provided with a fourth through hole at a position corresponding to the third through hole, and the screw is first threadedly connected with the third through hole and then passes through the fourth through hole, so that the pull rod is fixed on the first rotating seat.

[0025] In one embodiment, the frame includes a first panel, a second panel and a second rotating seat, the first panel and / or the second panel is provided with the storage groove, the first panel and the second panel are respectively connected to the second rotating seat, the first panel and the second panel can both rotate relative to the second rotating seat and form at least a third position and a fourth position, the third position is the unfolded position of the frame, and the fourth position is the folded position of the frame.

[0026] The trolley in the above embodiment further defines that the first panel and the second panel are rotatably connected to the second rotating seat respectively. In the fourth position, the first panel and the second panel form a stacked relationship, and the pull rod and the pulley are both located between the first panel and the second panel, which not only reduces the space occupied by the trolley when stored, but also improves the aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a first-direction stereoscopic view of a trolley in one embodiment (the first rotating seat is in the first position);

[0028] Figure 2 An exploded view of a trolley in one embodiment;

[0029] Figure 3 is a second-direction stereoscopic view of a trolley in one embodiment (the first rotating seat is in the first position);

[0030] Figure 4 is a third-direction stereoscopic view of a trolley in one embodiment (the first rotating seat is in the second position);

[0031] Figure 5 A schematic diagram of the assembly of the pull rod and the first rotating seat in one embodiment;

[0032] Figure 6 is a cross-sectional view of a rear cart in one embodiment (the first rotating seat is in a first position);

[0033] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0034] Figure 8 It is a perspective view of the trolley in the fourth direction (folded state) in one embodiment.

[0035] Reference numerals:

[0036] 1 frame, 11 first panel, 12 second panel, 13 second rotating seat, 110 connecting seat, 120 movable blocking member, 130 fixed blocking member, 140 surrounding edge, 150 limiting portion, 101 receiving groove, 102 first through hole, 103 first arc-shaped groove, 104 second arc-shaped groove;

[0037] 2 pull rod assembly, 21 pull rod, 22 first rotating seat, 23 round shaft, 24 positioning marble, 221 arc-shaped protrusion, 201 fourth through hole, 202 second through hole, 203 mounting groove, 204 third through hole;

[0038] 3 pulleys. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution 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 part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0041] like Figures 1 to 4 As shown, this embodiment provides a trolley, comprising:

[0042] The frame 1 has a storage slot 101 at the bottom, and a pulley 3 is connected to the bottom of the frame 1;

[0043] The pull rod assembly 2 includes a pull rod 21 and a first rotating seat 22. The pull rod 21 is arranged on the first rotating seat 22. The first rotating seat 22 can rotate relative to the frame 1 and form at least a first position and a second position. When the first rotating seat 22 is in the first position, the first rotating seat 22 is clamped with the frame 1, and the pull rod 21 remains standing relative to the frame 1. When the first rotating seat 22 is in the second position, the pull rod 21 is inserted in the storage groove 101, and the pull rod 21 is clamped with the frame 1.

[0044] The frame 1 may be, but is not limited to, a metal shell or a non-metal shell. For example, the frame 1 may be a plastic shell, and the frame 1 may be in the shape of a square structure, and the top of the frame 1 may be used to load cargo. The bottom of the frame 1 may be connected to a plurality of pulleys 3, and illustratively, the plurality of pulleys 3 may be connected to the frame 1 by means of screws, buckles, or welding.

[0045] The first rotating seat 22 can rotate relative to the frame 1 and form at least a first position and a second position. The first position can be that the pull rod 21 is engaged with the frame 1 and is in a vertical relationship to prevent the trolley from vibrating during the loading process. Under the gravity of the pull rod 21, the pull rod 21 rotates relative to the frame 1, causing stress damage to the pull rod 21 and / or the first rotating seat 22. The second position can be that the pull rod 21 is engaged with the frame 1 and is in a parallel relationship. At this time, the pull rod 21 is located in the storage groove 101 at the bottom of the frame 1 for storage. The first rotating seat 22 can be engaged with the frame 1 by means of engagement, magnetic attraction, etc.

[0046] In the above embodiment, the pull rod 21 is rotatably connected to the frame 1 through the first rotating seat 22, and at least a first position and a second position are formed. When the first rotating seat 22 is in the first position, when the user does not apply external force, the pull rod 21 remains in a standing state relative to the frame 1, which can prevent the trolley from vibrating during the loading process. Under the gravity of the pull rod 21, the pull rod 21 rotates relative to the frame 1 by itself, causing stress damage to the pull rod 21 and / or the first rotating seat 22; when the first rotating seat 22 is in the second position, the pull rod 21 is stored in the storage groove 101 opened at the bottom of the frame 1. At this time, the top of the frame 1 can be loaded with larger cargo without being affected by the pull rod 21. In addition, by storing the pull rod 21 at the bottom of the frame 1, the storage space occupied by the trolley can be reduced and the aesthetics can be improved.

[0047] like Figure 2 and Figure 3 As shown, in addition to the features of the above-mentioned embodiments, this embodiment is further defined as follows: a connecting seat 110 having a certain height is extended from the bottom of the frame 1, and the number of the connecting seats 110 is two, and the two connecting seats 110 are arranged opposite to each other; the end of the first rotating seat 22 away from the pull rod 21 is at least partially clamped between the two connecting seats 110, and the connecting seat 110 and the first rotating seat 22 are respectively provided with a first through hole 102 and a second through hole 202, and the first through hole 102 and the second through hole 202 are arranged opposite to each other, and the connecting seat 110 and the first rotating seat 22 are synchronously inserted into the first through hole 102 and the second through hole 202 through the circular shaft 23 to realize the rotational connection.

[0048] Among them, the distance between the central axis of the first through hole 102 on the connecting seat 110 and the bottom plate of the frame 1 is not less than the distance between the central axis of the second through hole 202 and the end surface of the first rotating seat 22 close to the bottom plate of the frame 1 when the first rotating seat 22 is in the second position, so that the first rotating seat 22 can rotate from the first position to the second position relative to the frame 1.

[0049] The circular shaft 23 may be, but is not limited to, a metal cylinder or a non-metal cylinder. For example, the circular shaft 23 is a metal cylinder to improve the rotation connection strength between the first rotating seat 22 and the connecting seat 110 .

[0050] The above-mentioned trolley further defines that the first rotating seat 22 and the connecting seat 110 are rotatably connected through a circular shaft 23. Specifically, the first rotating seat 22 is partially clamped between the two connecting seats 110. The two connecting seats 110 are respectively provided with a first through hole 102, and the connecting seats 110 are provided with a second through hole 202. The circular shaft 23 first penetrates the first through hole 102 on the left connecting seat 110, then penetrates the second through hole 202 on the first rotating seat 22, and finally penetrates the first through hole 102 on the right connecting seat 110. Based on the above structure, the first connecting seat 110 can rotate relative to the frame 1, and the structure is simple and reliable, and is not easy to fail.

[0051] like Figure 1 and Figure 4 As shown, in addition to the features of the above-mentioned embodiment, this embodiment is further defined as follows: movable blocking members 120 are provided at both ends of the circular axis 23 at the bottom of the frame 1, the movable blocking members 120 are detachably connected to the frame 1, and the projection of the movable blocking member 120 on the connecting seat 110 at least partially blocks the first through hole 102.

[0052] The movable blocking member 120 can be detachably connected to the bottom of the frame 1 . When the two movable blocking members 120 are assembled on the bottom of the frame 1 , the two movable blocking members 120 can restrict the circular shaft 23 from being separated from the first through hole 102 and the second through hole 202 .

[0053] The above-mentioned trolley further defines that movable blocking members 120 are respectively provided at both ends of the circular shaft 23 at the bottom of the frame 1, and the projection portion of the movable blocking member 120 on the connecting seat 110 is blocked on the first through hole 102. The two movable blocking members 120 limit the movement of the circular shaft 23 relative to the first through hole and the second through hole 202, thereby ensuring the reliability of the rotational connection between the first rotating seat 22 and the connecting seat 110.

[0054] like Figures 2 to 4 As shown, in addition to the features of the above-mentioned embodiments, this embodiment is further defined as follows: a movable blocking member 120 and a fixed blocking member 130 are respectively provided at both ends of the circular shaft 23 at the bottom of the frame 1, the projection of the fixed blocking member 130 on the connecting seat 110 at least partially blocks the first through hole 102, the movable blocking member 120 is detachably connected to the frame 1, and the projection of the movable blocking member 120 on the connecting seat 110 at least partially blocks the first through hole 102.

[0055] The fixed blocking member 130 may be a plate-shaped structure, and the fixed blocking member 130 may be integrally formed with the vehicle frame 1 , so that the circular shaft 23 cannot be removed from the connecting seat 110 adjacent to which the fixed blocking member 130 is disposed.

[0056] like Figure 4As shown, in addition to the features of the above embodiments, this embodiment further defines that: the movable blocking member 120 is a screw, and the movable blocking member 120 is threadedly connected to the vehicle frame 1 .

[0057] The above-mentioned trolley further defines that the movable blocking member 120 is a screw, and accordingly, a threaded hole matching the screw is provided on the vehicle frame 1, and the movable blocking member 120 and the vehicle frame 1 are connected by threads to achieve quick disassembly and assembly, and when the screw is assembled on the vehicle frame 1, the nut on the screw is arranged opposite to the first through hole 102, and the round shaft 23 cannot be separated from the first through hole 102 under the obstruction of the nut. It should be noted that in other embodiments, the movable blocking member can also be a structure such as a latch.

[0058] like Figure 2 and Figure 3 As shown, in addition to the features of the above-mentioned embodiments, this embodiment is further defined as follows: a peripheral edge 140 is connected to the edge of the frame 1, the connecting seat 110 is connected to the peripheral edge 140 and / or the frame 1, a positioning marble 24 is provided on the first rotating seat 22, and when the first rotating seat 22 is in the first position, the positioning marble 24 is engaged with the peripheral edge 140, and the positioning marble 24 can perform telescopic movement relative to the first rotating seat 22.

[0059] The above-mentioned trolley further defines that the edge of the frame 1 is connected to the surrounding edge 140, and a positioning marble 24 is arranged on the first rotating seat 22. When the positioning marble 24 is engaged with the surrounding edge 140, the first rotating seat 22 is maintained in the first position, and the pull rod 21 remains in a standing state relative to the frame 1. Since the positioning marble 24 can perform telescopic movement relative to the first rotating seat 22, when the user applies force to the pull rod 21, the positioning marble 24 is elastically deformed by the pressure of the surrounding edge 140, and the positioning marble 24 can be disengaged from the surrounding edge 140. At this time, the pull rod 21 can rotate at any angle between the first position and the second position relative to the frame 1.

[0060] like Figure 2 and Figure 3 As shown, in addition to the features of the above-mentioned embodiments, this embodiment is further defined as follows: one of the outer surfaces of the first rotating seat 22 and the connecting seat 110 is provided with an arc-shaped protrusion 221, and the other is provided with a first arc-shaped groove 103 and a second arc-shaped groove 104; when the first rotating seat 22 is located at the first position, the arc-shaped protrusion 221 is engaged with the first arc-shaped groove 103; when the first rotating seat 22 is located at the second position, the arc-shaped protrusion 221 is engaged with the second arc-shaped groove 104.

[0061] The above-mentioned trolley further defines that one of the outer surfaces of the first rotating seat 22 and the connecting seat 110 is provided with an arc-shaped protrusion 221, and the other is provided with a first arc-shaped groove 103 and a second arc-shaped groove 104. For example, the arc-shaped protrusion 221 is formed on the first rotating seat 22, and the first arc-shaped groove 103 and the second arc-shaped groove 104 are formed on the connecting seat 110. When the first rotating seat 22 is in the first position, the arc-shaped protrusion 221 on the first rotating seat 22 and the connecting seat 110 are in a first position. The first arcuate groove 103 on the seat 110 is engaged, and on the basis of the engagement of the positioning marble 24 with the surrounding edge 140, the stability of the pull rod 21 standing relative to the frame 1 is further improved by the engagement of the arcuate protrusion 221 with the first arcuate groove 103. In addition, when the first rotating seat 22 rotates to the second position, the arcuate protrusion 221 is engaged with the second arcuate groove 104 on the connecting seat 110, so that the pull rod 21 remains stored in the storage groove 101 on the frame 1.

[0062] like Figure 3 and Figure 6 , Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the pull rod assembly 2 also includes a damping member 25, the damping member 25 is arranged on the first rotating seat 22, and the damping member 25 is at least partially sandwiched between the circular shaft 23 and the first rotating seat 22.

[0063] The damping member may be made of rubber, plastic, fiber, etc. For example, the damping member 25 is made of rubber material, and the side of the damping member 25 that contacts the circular shaft 23 is in an arc shape, so that the damping member 25 fits the circular shaft 23 better, and the damping member 25 can overcome the friction with the circular shaft 23 and rotate relative to the circular shaft 23.

[0064] The trolley in the above embodiment further defines a damping member 25 between the circular shaft 23 and the first rotating seat 22. The friction between the damping member 25 and the circular shaft 23 enables the first rotating seat 22 to have a certain deceleration effect when it rotates relative to the frame 1, especially when the first rotating seat 22 is in the first position. In addition to the clamping connection between the positioning marble 24 and the surrounding edge 140, the friction between the damping member 25 and the circular shaft 23 enables the pull rod 21 to remain in a standing state, thereby preventing the pull rod 21 from tipping over due to non-human forces.

[0065] like Figure 2 and Figure 3 As shown, in addition to the features of the above-mentioned embodiment, this embodiment is further defined as follows: a limiting portion 150 is provided at the bottom of the frame 1 at one end away from the first rotating seat 22, the limiting portion 150 is elastic, the projection of the limiting portion 150 on the frame 1 is at least partially located within the range of the storage groove 101, and the limiting portion 150 can be clamped relative to the pull rod 21.

[0066] like Figure 2 and Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the pull rod 21 is a telescopic pull rod 21.

[0067] like Figures 1 to 3 As shown, in addition to the features of the above-mentioned embodiments, this embodiment is further defined as follows: a mounting groove 203 and a third through hole 204 connected to the mounting groove 203 are provided on the first rotating seat 22, the number of the third through holes 204 is multiple, and the multiple third through holes 204 are distributed at intervals on the surface of the first rotating seat 22, the pull rod 21 is partially inserted into the mounting groove 203, the pull rod 21 is provided with a plurality of fourth through holes 201 which are arranged one by one corresponding to the third through holes 204, and one of the third through holes 204 and the fourth through holes 201 is provided with threads.

[0068] The above-mentioned trolley further defines that the pull rod 21 is inserted into an installation groove 203 provided on the first rotating seat 22, and the first rotating seat 22 is provided with a plurality of third through holes 204 connected to the installation grooves 203. Exemplarily, the number of the third through holes 204 is two, and the two third through holes 204 are distributed on the surfaces on the left and right sides of the first rotating seat 22. A threaded structure is formed on the third through hole 204, and the pull rod 21 is provided with a fourth through hole 201 at a position corresponding to the third through hole 204. The screw is first threadedly connected with the third through hole 204 and then passes through the fourth through hole 201, so that the pull rod 21 is fixed on the first rotating seat 22.

[0069] like Figures 1 to 3 As shown, in addition to the features of the above embodiments, the present embodiment further defines: the frame 1 includes a first panel 11, a second panel 12 and a second rotating seat 13, the first panel 11 and / or the second panel 12 are provided with a storage groove 101, the first panel 11 and the second panel 12 are respectively connected to the second rotating seat 13, the first panel 11 and the second panel 12 can both rotate relative to the second rotating seat 13, and form at least a third position and a fourth position, the third position is the unfolded position of the frame 1, and the fourth position is the folded position of the frame 1.

[0070] The above-mentioned trolley further defines that the first panel 11 and the second panel 12 are rotatably connected to the second rotating seat 13 respectively. In the fourth position, the first panel 11 and the second panel 12 form a stacked relationship, and the pull rod 21 and the pulley 3 are both located between the first panel 11 and the second panel 12, which not only reduces the space occupied by the trolley when stored, but also improves the aesthetics.

[0071] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present utility model patent shall be subject to the attached claims.

Claims

1. A trolley, characterized in that: include: A frame (1), wherein a storage groove (101) is provided at the bottom of the frame (1), and a pulley (3) is connected to the bottom of the frame (1); A pull rod assembly (2), the pull rod assembly (2) comprising a pull rod (21) and a first rotating seat (22), the pull rod (21) being arranged on the first rotating seat (22), the first rotating seat (22) being rotatable relative to the frame (1) and forming at least a first position and a second position, when the first rotating seat (22) is in the first position, the first rotating seat (22) is engaged with the frame (1), and the pull rod (21) remains upright relative to the frame (1), when the first rotating seat (22) is in the second position, the pull rod (21) is inserted into the storage groove (101), and the pull rod (21) is engaged with the frame (1).

2. The trolley according to claim 1, characterized in that: A connecting seat (110) of a certain height is extended from the bottom of the frame (1), and there are two connecting seats (110), which are arranged opposite to each other; One end of the first rotating seat (22) away from the pull rod (21) is at least partially clamped between the two connecting seats (110), and the connecting seat (110) and the first rotating seat (22) are respectively provided with a first through hole (102) and a second through hole (202), and the first through hole (102) and the second through hole (202) are arranged opposite to each other, and the connecting seat (110) and the first rotating seat (22) are synchronously inserted into the first through hole (102) and the second through hole (202) through a circular shaft (23) to achieve a rotating connection.

3. The trolley according to claim 2, characterized in that: The bottom of the frame (1) is provided with movable blocking members (120) at both ends of the circular shaft (23); the movable blocking member (120) is detachably connected to the frame (1), and the projection of the movable blocking member (120) on the connecting seat (110) at least partially blocks the first through hole (102); or, A movable blocking member (120) and a fixed blocking member (130) are respectively arranged at both ends of the circular shaft (23) at the bottom of the frame (1); a projection of the fixed blocking member (130) on the connecting seat (110) at least partially blocks the first through hole (102); the movable blocking member (120) is detachably connected to the frame (1); a projection of the movable blocking member (120) on the connecting seat (110) at least partially blocks the first through hole (102).

4. The trolley according to claim 3, characterized in that: The movable blocking member (120) is a screw, and the movable blocking member (120) is threadedly connected to the vehicle frame (1).

5. The trolley according to claim 2, characterized in that: The edge of the frame (1) is connected to a peripheral edge (140), the connecting seat (110) is connected to the peripheral edge (140) and / or the frame (1), and a positioning marble (24) is provided on the first rotating seat (22). When the first rotating seat (22) is located at the first position, the positioning marble (24) is engaged with the peripheral edge (140), and the positioning marble (24) can perform telescopic movement relative to the first rotating seat (22).

6. The trolley according to claim 5, characterized in that: One of the outer surfaces of the first rotating seat (22) and the connecting seat (110) is provided with an arc-shaped protrusion (221), and the other is provided with a first arc-shaped groove (103) and a second arc-shaped groove (104); when the first rotating seat (22) is located at the first position, the arc-shaped protrusion (221) is engaged with the first arc-shaped groove (103); when the first rotating seat (22) is located at the second position, the arc-shaped protrusion (221) is engaged with the second arc-shaped groove (104).

7. The trolley according to claim 2, characterized in that: The pull rod assembly (2) further comprises a damping member (25), wherein the damping member (25) is arranged on the first rotating seat (22), and the damping member (25) is at least partially sandwiched between the circular shaft (23) and the first rotating seat (22).

8. The trolley according to claim 1, characterized in that: A limiting portion (150) is provided at the bottom of the frame (1) at one end away from the first rotating seat (22); the limiting portion (150) is elastic; a projection of the limiting portion (150) on the frame (1) is at least partially located within the range of the storage slot (101); and the limiting portion (150) can be snap-connected relative to the pull rod (21); and / or, The pull rod (21) is a telescopic pull rod (21).

9. The trolley according to claim 1, characterized in that: The first rotating seat (22) is provided with a mounting groove (203) and a third through hole (204) connected to the mounting groove (203); the number of the third through holes (204) is multiple, and the multiple third through holes (204) are distributed at intervals on the surface of the first rotating seat (22); the pull rod (21) is partially inserted into the mounting groove (203); the pull rod (21) is provided with a plurality of fourth through holes (201) arranged one-to-one corresponding to the third through holes (204); one of the third through holes (204) and the fourth through holes (201) is provided with threads.

10. The trolley according to any one of claims 1 to 9, characterized in that: The frame (1) comprises a first panel (11), a second panel (12) and a second rotating seat (13); the first panel (11) and / or the second panel (12) are provided with the storage groove (101); the first panel (11) and the second panel (12) are respectively connected to the second rotating seat (13); the first panel (11) and the second panel (12) are both rotatable relative to the second rotating seat (13) and form at least a third position and a fourth position; the third position is an unfolded position of the frame (1), and the fourth position is a folded position of the frame (1).

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